Merge "libmedia: add NULL check before accessing source and destination buffers."
diff --git a/CleanSpec.mk b/CleanSpec.mk
index d0890fe..34d040e 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -59,6 +59,12 @@
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/lib/libaudiopolicymanager.so)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libaudiopolicyservice_intermediates)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libaudiopolicymanager_intermediates)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/lib/liboboe.so)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/lib64/liboboe.so)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/STATIC_LIBRARIES/liboboe*)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/liboboe*)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj_arm/STATIC_LIBRARIES/liboboe*)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj_arm/SHARED_LIBRARIES/liboboe*)
 
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST
diff --git a/camera/camera2/CaptureRequest.cpp b/camera/camera2/CaptureRequest.cpp
index 4daf35b..0597950 100644
--- a/camera/camera2/CaptureRequest.cpp
+++ b/camera/camera2/CaptureRequest.cpp
@@ -23,11 +23,19 @@
 
 #include <binder/Parcel.h>
 #include <gui/Surface.h>
+#include <gui/view/Surface.h>
 
 namespace android {
 namespace hardware {
 namespace camera2 {
 
+// These must be in the .cpp (to avoid inlining)
+CaptureRequest::CaptureRequest() = default;
+CaptureRequest::~CaptureRequest() = default;
+CaptureRequest::CaptureRequest(const CaptureRequest& rhs) = default;
+CaptureRequest::CaptureRequest(CaptureRequest&& rhs) noexcept = default;
+
+
 status_t CaptureRequest::readFromParcel(const android::Parcel* parcel) {
     if (parcel == NULL) {
         ALOGE("%s: Null parcel", __FUNCTION__);
diff --git a/camera/camera2/OutputConfiguration.cpp b/camera/camera2/OutputConfiguration.cpp
index f570b7f..468a1eb 100644
--- a/camera/camera2/OutputConfiguration.cpp
+++ b/camera/camera2/OutputConfiguration.cpp
@@ -22,7 +22,7 @@
 
 #include <camera/camera2/OutputConfiguration.h>
 #include <binder/Parcel.h>
-#include <gui/Surface.h>
+#include <gui/view/Surface.h>
 #include <utils/String8.h>
 
 namespace android {
diff --git a/camera/tests/Android.mk b/camera/tests/Android.mk
index 0978a81..659484f 100644
--- a/camera/tests/Android.mk
+++ b/camera/tests/Android.mk
@@ -18,7 +18,8 @@
 
 LOCAL_SRC_FILES:= \
 	VendorTagDescriptorTests.cpp \
-	CameraBinderTests.cpp
+	CameraBinderTests.cpp \
+	CameraZSLTests.cpp
 
 LOCAL_SHARED_LIBRARIES := \
 	liblog \
diff --git a/camera/tests/CameraZSLTests.cpp b/camera/tests/CameraZSLTests.cpp
new file mode 100644
index 0000000..6c91fdc
--- /dev/null
+++ b/camera/tests/CameraZSLTests.cpp
@@ -0,0 +1,292 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_NDEBUG 0
+#define LOG_TAG "CameraZSLTests"
+
+#include <gtest/gtest.h>
+
+#include <binder/ProcessState.h>
+#include <utils/Errors.h>
+#include <utils/Log.h>
+#include <gui/Surface.h>
+#include <gui/SurfaceComposerClient.h>
+#include <camera/CameraParameters.h>
+#include <camera/CameraMetadata.h>
+#include <camera/Camera.h>
+#include <android/hardware/ICameraService.h>
+
+using namespace android;
+using namespace android::hardware;
+
+class CameraZSLTests : public ::testing::Test,
+    public ::android::hardware::BnCameraClient {
+protected:
+
+    CameraZSLTests() : numCameras(0), mPreviewBufferCount(0),
+    mAutoFocusMessage(false), mSnapshotNotification(false) {}
+
+    //Gtest interface
+    void SetUp() override;
+    void TearDown() override;
+
+    //CameraClient interface
+    void notifyCallback(int32_t msgType, int32_t, int32_t) override;
+    void dataCallback(int32_t msgType, const sp<IMemory>&,
+            camera_frame_metadata_t *) override;
+    void dataCallbackTimestamp(nsecs_t, int32_t,
+            const sp<IMemory>&) override {};
+    void recordingFrameHandleCallbackTimestamp(nsecs_t,
+            native_handle_t*) override {};
+
+    status_t waitForPreviewStart();
+    status_t waitForEvent(Mutex &mutex, Condition &condition, bool &flag);
+
+    mutable Mutex mPreviewLock;
+    mutable Condition mPreviewCondition;
+    mutable Mutex mAutoFocusLock;
+    mutable Condition mAutoFocusCondition;
+    mutable Mutex mSnapshotLock;
+    mutable Condition mSnapshotCondition;
+
+    int32_t numCameras;
+    size_t mPreviewBufferCount;
+    sp<ICameraService> mCameraService;
+    sp<SurfaceComposerClient> mComposerClient;
+    bool mAutoFocusMessage;
+    bool mSnapshotNotification;
+    static const int32_t kPreviewThreshold  = 8;
+    static const nsecs_t kPreviewTimeout    = 5000000000;  // 5 [s.]
+    static const nsecs_t kEventTimeout      = 10000000000; // 10 [s.]
+};
+
+void CameraZSLTests::SetUp() {
+    ::android::binder::Status rc;
+    ProcessState::self()->startThreadPool();
+    sp<IServiceManager> sm = defaultServiceManager();
+    sp<IBinder> binder = sm->getService(String16("media.camera"));
+    mCameraService = interface_cast<ICameraService>(binder);
+    rc = mCameraService->getNumberOfCameras(
+            hardware::ICameraService::CAMERA_TYPE_ALL, &numCameras);
+    EXPECT_TRUE(rc.isOk());
+
+    mComposerClient = new SurfaceComposerClient;
+    ASSERT_EQ(NO_ERROR, mComposerClient->initCheck());
+}
+
+void CameraZSLTests::TearDown() {
+    mCameraService.clear();
+    mComposerClient->dispose();
+}
+
+void CameraZSLTests::notifyCallback(int32_t msgType, int32_t,
+        int32_t) {
+    if (CAMERA_MSG_FOCUS == msgType) {
+        Mutex::Autolock l(mAutoFocusLock);
+        mAutoFocusMessage = true;
+        mAutoFocusCondition.broadcast();
+    } else {
+        ALOGV("%s: msgType: %d", __FUNCTION__, msgType);
+    }
+};
+
+void CameraZSLTests::dataCallback(int32_t msgType, const sp<IMemory>& /*data*/,
+        camera_frame_metadata_t *) {
+
+    switch (msgType) {
+    case CAMERA_MSG_PREVIEW_FRAME: {
+        Mutex::Autolock l(mPreviewLock);
+        mPreviewBufferCount++;
+        mPreviewCondition.broadcast();
+        break;
+    }
+    case CAMERA_MSG_COMPRESSED_IMAGE: {
+        Mutex::Autolock l(mSnapshotLock);
+        mSnapshotNotification = true;
+        //TODO: Add checks on incoming Jpeg
+        mSnapshotCondition.broadcast();
+        break;
+    }
+    default:
+        ALOGV("%s: msgType: %d", __FUNCTION__, msgType);
+    }
+};
+
+status_t CameraZSLTests::waitForPreviewStart() {
+    status_t rc = NO_ERROR;
+    Mutex::Autolock l(mPreviewLock);
+    mPreviewBufferCount = 0;
+
+    while (mPreviewBufferCount < kPreviewThreshold) {
+        rc = mPreviewCondition.waitRelative(mPreviewLock,
+                kPreviewTimeout);
+        if (NO_ERROR != rc) {
+            break;
+        }
+    }
+
+    return rc;
+}
+
+status_t CameraZSLTests::waitForEvent(Mutex &mutex,
+        Condition &condition, bool &flag) {
+    status_t rc = NO_ERROR;
+    Mutex::Autolock l(mutex);
+    flag = false;
+
+    while (!flag) {
+        rc = condition.waitRelative(mutex,
+                kEventTimeout);
+        if (NO_ERROR != rc) {
+            break;
+        }
+    }
+
+    return rc;
+}
+
+TEST_F(CameraZSLTests, TestAllPictureSizes) {
+    ::android::binder::Status rc;
+
+    for (int32_t cameraId = 0; cameraId < numCameras; cameraId++) {
+        sp<Surface> previewSurface;
+        sp<SurfaceControl> surfaceControl;
+        sp<ICamera> cameraDevice;
+
+        String16 cameraIdStr = String16(String8::format("%d", cameraId));
+        bool isSupported = false;
+        rc = mCameraService->supportsCameraApi(cameraIdStr,
+                hardware::ICameraService::API_VERSION_1, &isSupported);
+        EXPECT_TRUE(rc.isOk());
+
+        // We only care about camera Camera1 ZSL support.
+        if (!isSupported) {
+            continue;
+        }
+
+        CameraMetadata metadata;
+        rc = mCameraService->getCameraCharacteristics(cameraIdStr, &metadata);
+        if (!rc.isOk()) {
+            // The test is relevant only for cameras with Hal 3.x
+            // support.
+            continue;
+        }
+        EXPECT_FALSE(metadata.isEmpty());
+        camera_metadata_entry_t availableCapabilities =
+                metadata.find(ANDROID_REQUEST_AVAILABLE_CAPABILITIES);
+        EXPECT_TRUE(0 < availableCapabilities.count);
+        bool isReprocessSupported = false;
+        const uint8_t *caps = availableCapabilities.data.u8;
+        for (size_t i = 0; i < availableCapabilities.count; i++) {
+            if (ANDROID_REQUEST_AVAILABLE_CAPABILITIES_PRIVATE_REPROCESSING ==
+                caps[i]) {
+                isReprocessSupported = true;
+                break;
+            }
+        }
+        if (!isReprocessSupported) {
+            // ZSL relies on this feature
+            continue;
+        }
+
+        rc = mCameraService->connect(this, cameraId,
+                String16("ZSLTest"), hardware::ICameraService::USE_CALLING_UID,
+                hardware::ICameraService::USE_CALLING_PID, &cameraDevice);
+        EXPECT_TRUE(rc.isOk());
+
+        CameraParameters params(cameraDevice->getParameters());
+
+        String8 focusModes(params.get(
+                CameraParameters::KEY_SUPPORTED_FOCUS_MODES));
+        bool isAFSupported = false;
+        const char *focusMode = nullptr;
+        if (focusModes.contains(CameraParameters::FOCUS_MODE_AUTO)) {
+            // If supported 'auto' should be set by default
+            isAFSupported = true;
+        } else if (focusModes.contains(
+                CameraParameters::FOCUS_MODE_CONTINUOUS_PICTURE)) {
+            isAFSupported = true;
+            focusMode = CameraParameters::FOCUS_MODE_CONTINUOUS_PICTURE;
+        } else if (focusModes.contains(
+                CameraParameters::FOCUS_MODE_CONTINUOUS_VIDEO)) {
+            isAFSupported = true;
+            focusMode = CameraParameters::FOCUS_MODE_CONTINUOUS_VIDEO;
+        } else if (focusModes.contains(CameraParameters::FOCUS_MODE_MACRO)) {
+            isAFSupported = true;
+            focusMode = CameraParameters::FOCUS_MODE_MACRO;
+        }
+
+        if (!isAFSupported) {
+            // AF state is needed
+            continue;
+        }
+
+        if (nullptr != focusMode) {
+            params.set(CameraParameters::KEY_FOCUS_MODE, focusMode);
+            ASSERT_EQ(NO_ERROR, cameraDevice->setParameters(params.flatten()));
+        }
+
+        int previewWidth, previewHeight;
+        params.getPreviewSize(&previewWidth, &previewHeight);
+        ASSERT_TRUE((0 < previewWidth) && (0 < previewHeight));
+
+        surfaceControl = mComposerClient->createSurface(
+                String8("Test Surface"),
+                previewWidth, previewHeight,
+                CameraParameters::previewFormatToEnum(
+                        params.getPreviewFormat()),
+                GRALLOC_USAGE_HW_RENDER);
+
+        ASSERT_TRUE(nullptr != surfaceControl.get());
+        ASSERT_TRUE(surfaceControl->isValid());
+
+        SurfaceComposerClient::openGlobalTransaction();
+        ASSERT_EQ(NO_ERROR, surfaceControl->setLayer(0x7fffffff));
+        ASSERT_EQ(NO_ERROR, surfaceControl->show());
+        SurfaceComposerClient::closeGlobalTransaction();
+
+        previewSurface = surfaceControl->getSurface();
+        ASSERT_TRUE(previewSurface != NULL);
+        ASSERT_EQ(NO_ERROR, cameraDevice->setPreviewTarget(
+                previewSurface->getIGraphicBufferProducer()));
+
+        cameraDevice->setPreviewCallbackFlag(
+                CAMERA_FRAME_CALLBACK_FLAG_CAMCORDER);
+
+        Vector<Size> pictureSizes;
+        params.getSupportedPictureSizes(pictureSizes);
+        for (size_t i = 0; i < pictureSizes.size(); i++) {
+            params.setPictureSize(pictureSizes[i].width,
+                    pictureSizes[i].height);
+            ASSERT_EQ(NO_ERROR, cameraDevice->setParameters(params.flatten()));
+            ASSERT_EQ(NO_ERROR, cameraDevice->startPreview());
+            ASSERT_EQ(NO_ERROR, waitForPreviewStart());
+
+            ASSERT_EQ(NO_ERROR, cameraDevice->autoFocus());
+            ASSERT_EQ(NO_ERROR, waitForEvent(mAutoFocusLock,
+                    mAutoFocusCondition, mAutoFocusMessage));
+
+            ASSERT_EQ(NO_ERROR,
+                    cameraDevice->takePicture(CAMERA_MSG_COMPRESSED_IMAGE));
+            ASSERT_EQ(NO_ERROR, waitForEvent(mSnapshotLock, mSnapshotCondition,
+                    mSnapshotNotification));
+        }
+
+        cameraDevice->stopPreview();
+        rc = cameraDevice->disconnect();
+        EXPECT_TRUE(rc.isOk());
+    }
+}
diff --git a/drm/libmediadrm/Android.mk b/drm/libmediadrm/Android.mk
index 14740e6..8e3cc40 100644
--- a/drm/libmediadrm/Android.mk
+++ b/drm/libmediadrm/Android.mk
@@ -13,7 +13,7 @@
     IDrmClient.cpp \
     IMediaDrmService.cpp \
     SharedLibrary.cpp
-ifeq ($(ENABLE_TREBLE), true)
+ifneq ($(DISABLE_TREBLE_DRM), true)
 LOCAL_SRC_FILES += \
     DrmHal.cpp \
     CryptoHal.cpp
@@ -31,7 +31,7 @@
     libmediautils \
     libstagefright_foundation \
     libutils
-ifeq ($(ENABLE_TREBLE), true)
+ifneq ($(DISABLE_TREBLE_DRM), true)
 LOCAL_SHARED_LIBRARIES += \
     android.hidl.base@1.0 \
     android.hardware.drm@1.0 \
diff --git a/drm/libmediadrm/DrmHal.cpp b/drm/libmediadrm/DrmHal.cpp
index 42dce35..4ef1f47 100644
--- a/drm/libmediadrm/DrmHal.cpp
+++ b/drm/libmediadrm/DrmHal.cpp
@@ -202,6 +202,8 @@
     if (factory == NULL) {
         ALOGE("Failed to make drm factory");
     }
+    ALOGD("makeDrmFactory: service is %s",
+            factory->isRemote() ? "Remote" : "Not Remote");
     return factory;
 }
 
diff --git a/include/camera/camera2/CaptureRequest.h b/include/camera/camera2/CaptureRequest.h
index 978f48d..0180183 100644
--- a/include/camera/camera2/CaptureRequest.h
+++ b/include/camera/camera2/CaptureRequest.h
@@ -30,6 +30,16 @@
 namespace camera2 {
 
 struct CaptureRequest : public Parcelable {
+
+    // those are needed so we can use a forward declaration of Surface, otherwise
+    // the type is incomplete when the ctor/dtors are generated. This has the added
+    // benefit that ctor/dtors are not inlined, which is good because they're not trivial
+    // (because of the vtable and Vector<>)
+    CaptureRequest();
+    CaptureRequest(const CaptureRequest& rhs);
+    CaptureRequest(CaptureRequest&& rhs) noexcept;
+    virtual ~CaptureRequest();
+
     CameraMetadata          mMetadata;
     Vector<sp<Surface> >    mSurfaceList;
     bool                    mIsReprocess;
diff --git a/include/media/AudioSystem.h b/include/media/AudioSystem.h
index 4c64242..853d318 100644
--- a/include/media/AudioSystem.h
+++ b/include/media/AudioSystem.h
@@ -17,6 +17,8 @@
 #ifndef ANDROID_AUDIOSYSTEM_H_
 #define ANDROID_AUDIOSYSTEM_H_
 
+#include <sys/types.h>
+
 #include <media/AudioPolicy.h>
 #include <media/AudioIoDescriptor.h>
 #include <media/IAudioFlingerClient.h>
diff --git a/include/media/AudioTrack.h b/include/media/AudioTrack.h
index cd33a44..1996dbe 100644
--- a/include/media/AudioTrack.h
+++ b/include/media/AudioTrack.h
@@ -732,6 +732,14 @@
     /* Set parameters - only possible when using direct output */
             status_t    setParameters(const String8& keyValuePairs);
 
+    /* Sets the volume shaper object */
+            VolumeShaper::Status applyVolumeShaper(
+                    const sp<VolumeShaper::Configuration>& configuration,
+                    const sp<VolumeShaper::Operation>& operation);
+
+    /* Gets the volume shaper state */
+            sp<VolumeShaper::State> getVolumeShaperState(int id);
+
     /* Get parameters */
             String8     getParameters(const String8& keys);
 
@@ -1118,6 +1126,10 @@
     //  a value of AUDIO_PORT_HANDLE_NONE indicated default (AudioPolicyManager) routing.
     audio_port_handle_t     mSelectedDeviceId;
 
+    sp<VolumeHandler>       mVolumeHandler;
+
+    int32_t                 mVolumeShaperId;
+
 private:
     class DeathNotifier : public IBinder::DeathRecipient {
     public:
diff --git a/include/media/IAudioTrack.h b/include/media/IAudioTrack.h
index a31cec6..27a62d6 100644
--- a/include/media/IAudioTrack.h
+++ b/include/media/IAudioTrack.h
@@ -26,6 +26,7 @@
 #include <binder/IMemory.h>
 #include <utils/String8.h>
 #include <media/AudioTimestamp.h>
+#include <media/VolumeShaper.h>
 
 namespace android {
 
@@ -74,6 +75,14 @@
 
     /* Signal the playback thread for a change in control block */
     virtual void        signal() = 0;
+
+    /* Sets the volume shaper */
+    virtual VolumeShaper::Status applyVolumeShaper(
+            const sp<VolumeShaper::Configuration>& configuration,
+            const sp<VolumeShaper::Operation>& operation) = 0;
+
+    /* gets the volume shaper state */
+    virtual sp<VolumeShaper::State> getVolumeShaperState(int id) = 0;
 };
 
 // ----------------------------------------------------------------------------
diff --git a/include/media/IMediaExtractor.h b/include/media/IMediaExtractor.h
index e0a81f1..06db359 100644
--- a/include/media/IMediaExtractor.h
+++ b/include/media/IMediaExtractor.h
@@ -42,6 +42,8 @@
     // returns an empty metadata object.
     virtual sp<MetaData> getMetaData() = 0;
 
+    virtual status_t getMetrics(Parcel *reply) = 0;
+
     enum Flags {
         CAN_SEEK_BACKWARD  = 1,  // the "seek 10secs back button"
         CAN_SEEK_FORWARD   = 2,  // the "seek 10secs forward button"
diff --git a/include/media/IMediaPlayer.h b/include/media/IMediaPlayer.h
index ca865a8..a4cc152 100644
--- a/include/media/IMediaPlayer.h
+++ b/include/media/IMediaPlayer.h
@@ -25,6 +25,7 @@
 
 #include <media/IMediaSource.h>
 #include <media/drm/DrmAPI.h>   // for DrmPlugin::* enum
+#include <media/VolumeShaper.h>
 
 // Fwd decl to make sure everyone agrees that the scope of struct sockaddr_in is
 // global, and not in android::
@@ -90,6 +91,12 @@
     virtual status_t        setRetransmitEndpoint(const struct sockaddr_in* endpoint) = 0;
     virtual status_t        getRetransmitEndpoint(struct sockaddr_in* endpoint) = 0;
     virtual status_t        setNextPlayer(const sp<IMediaPlayer>& next) = 0;
+
+    virtual VolumeShaper::Status applyVolumeShaper(
+                                    const sp<VolumeShaper::Configuration>& configuration,
+                                    const sp<VolumeShaper::Operation>& operation) = 0;
+    virtual sp<VolumeShaper::State> getVolumeShaperState(int id) = 0;
+
     // ModDrm
     virtual status_t        prepareDrm(const uint8_t uuid[16], const int mode) = 0;
     virtual status_t        releaseDrm() = 0;
diff --git a/include/media/Interpolator.h b/include/media/Interpolator.h
new file mode 100644
index 0000000..1b26b87
--- /dev/null
+++ b/include/media/Interpolator.h
@@ -0,0 +1,331 @@
+/*
+ * Copyright 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INTERPOLATOR_H
+#define ANDROID_INTERPOLATOR_H
+
+#include <map>
+#include <sstream>
+#include <unordered_map>
+
+#include <binder/Parcel.h>
+#include <utils/RefBase.h>
+
+#pragma push_macro("LOG_TAG")
+#undef LOG_TAG
+#define LOG_TAG "Interpolator"
+
+namespace android {
+
+/*
+ * A general purpose spline interpolator class which takes a set of points
+ * and performs interpolation.  This is used for the VolumeShaper class.
+ */
+
+template <typename S, typename T>
+class Interpolator : public std::map<S, T> {
+public:
+    // Polynomial spline interpolators
+    // Extend only at the end of enum, as this must match order in VolumeShapers.java.
+    enum InterpolatorType : int32_t {
+        INTERPOLATOR_TYPE_STEP,   // Not continuous
+        INTERPOLATOR_TYPE_LINEAR, // C0
+        INTERPOLATOR_TYPE_CUBIC,  // C1
+        INTERPOLATOR_TYPE_CUBIC_MONOTONIC, // C1 (to provide locally monotonic curves)
+        // INTERPOLATOR_TYPE_CUBIC_C2, // TODO - requires global computation / cache
+    };
+
+    explicit Interpolator(
+            InterpolatorType interpolatorType = INTERPOLATOR_TYPE_LINEAR,
+            bool cache = true)
+        : mCache(cache)
+        , mFirstSlope(0)
+        , mLastSlope(0) {
+        setInterpolatorType(interpolatorType);
+    }
+
+    std::pair<S, T> first() const {
+        return *this->begin();
+    }
+
+    std::pair<S, T> last() const {
+        return *this->rbegin();
+    }
+
+    // find the corresponding Y point from a X point.
+    T findY(S x) { // logically const, but modifies cache
+        auto high = this->lower_bound(x);
+        // greater than last point
+        if (high == this->end()) {
+            return this->rbegin()->second;
+        }
+        // at or before first point
+        if (high == this->begin()) {
+            return high->second;
+        }
+        // go lower.
+        auto low = high;
+        --low;
+
+        // now that we have two adjacent points:
+        switch (mInterpolatorType) {
+        case INTERPOLATOR_TYPE_STEP:
+            return high->first == x ? high->second : low->second;
+        case INTERPOLATOR_TYPE_LINEAR:
+            return ((high->first - x) * low->second + (x - low->first) * high->second)
+                    / (high->first - low->first);
+        case INTERPOLATOR_TYPE_CUBIC:
+        case INTERPOLATOR_TYPE_CUBIC_MONOTONIC:
+        default: {
+            // See https://en.wikipedia.org/wiki/Cubic_Hermite_spline
+
+            const S interval =  high->first - low->first;
+
+            // check to see if we've cached the polynomial coefficients
+            if (mMemo.count(low->first) != 0) {
+                const S t = (x - low->first) / interval;
+                const S t2 = t * t;
+                const auto &memo = mMemo[low->first];
+                return low->second + std::get<0>(memo) * t
+                        + (std::get<1>(memo) + std::get<2>(memo) * t) * t2;
+            }
+
+            // find the neighboring points (low2 < low < high < high2)
+            auto low2 = this->end();
+            if (low != this->begin()) {
+                low2 = low;
+                --low2; // decrementing this->begin() is undefined
+            }
+            auto high2 = high;
+            ++high2;
+
+            // you could have catmullRom with monotonic or
+            // non catmullRom (finite difference) with regular cubic;
+            // the choices here minimize computation.
+            bool monotonic, catmullRom;
+            if (mInterpolatorType == INTERPOLATOR_TYPE_CUBIC_MONOTONIC) {
+                monotonic = true;
+                catmullRom = false;
+            } else {
+                monotonic = false;
+                catmullRom = true;
+            }
+
+            // secants are only needed for finite difference splines or
+            // monotonic computation.
+            // we use lazy computation here - if we precompute in
+            // a single pass, duplicate secant computations may be avoided.
+            S sec, sec0, sec1;
+            if (!catmullRom || monotonic) {
+                sec = (high->second - low->second) / interval;
+                sec0 = low2 != this->end()
+                        ? (low->second - low2->second) / (low->first - low2->first)
+                        : mFirstSlope;
+                sec1 = high2 != this->end()
+                        ? (high2->second - high->second) / (high2->first - high->first)
+                        : mLastSlope;
+            }
+
+            // compute the tangent slopes at the control points
+            S m0, m1;
+            if (catmullRom) {
+                // Catmull-Rom spline
+                m0 = low2 != this->end()
+                        ? (high->second - low2->second) / (high->first - low2->first)
+                        : mFirstSlope;
+
+                m1 = high2 != this->end()
+                        ? (high2->second - low->second) / (high2->first - low->first)
+                        : mLastSlope;
+            } else {
+                // finite difference spline
+                m0 = (sec0 + sec) * 0.5;
+                m1 = (sec1 + sec) * 0.5;
+            }
+
+            if (monotonic) {
+                // https://en.wikipedia.org/wiki/Monotone_cubic_interpolation
+                // A sufficient condition for Fritsch–Carlson monotonicity is constraining
+                // (1) the normalized slopes to be within the circle of radius 3, or
+                // (2) the normalized slopes to be within the square of radius 3.
+                // Condition (2) is more generous and easier to compute.
+                const S maxSlope = 3 * sec;
+                m0 = constrainSlope(m0, maxSlope);
+                m1 = constrainSlope(m1, maxSlope);
+
+                m0 = constrainSlope(m0, 3 * sec0);
+                m1 = constrainSlope(m1, 3 * sec1);
+            }
+
+            const S t = (x - low->first) / interval;
+            const S t2 = t * t;
+            if (mCache) {
+                // convert to cubic polynomial coefficients and compute
+                m0 *= interval;
+                m1 *= interval;
+                const T dy = high->second - low->second;
+                const S c0 = low->second;
+                const S c1 = m0;
+                const S c2 = 3 * dy - 2 * m0 - m1;
+                const S c3 = m0 + m1 - 2 * dy;
+                mMemo[low->first] = std::make_tuple(c1, c2, c3);
+                return c0 + c1 * t + (c2 + c3 * t) * t2;
+            } else {
+                // classic Hermite interpolation
+                const S t3 = t2 * t;
+                const S h00 =  2 * t3 - 3 * t2     + 1;
+                const S h10 =      t3 - 2 * t2 + t    ;
+                const S h01 = -2 * t3 + 3 * t2        ;
+                const S h11 =      t3     - t2        ;
+                return h00 * low->second + (h10 * m0 + h11 * m1) * interval + h01 * high->second;
+            }
+        } // default
+        }
+    }
+
+    InterpolatorType getInterpolatorType() const {
+        return mInterpolatorType;
+    }
+
+    status_t setInterpolatorType(InterpolatorType interpolatorType) {
+        switch (interpolatorType) {
+        case INTERPOLATOR_TYPE_STEP:   // Not continuous
+        case INTERPOLATOR_TYPE_LINEAR: // C0
+        case INTERPOLATOR_TYPE_CUBIC:  // C1
+        case INTERPOLATOR_TYPE_CUBIC_MONOTONIC: // C1 + other constraints
+        // case INTERPOLATOR_TYPE_CUBIC_C2:
+            mInterpolatorType = interpolatorType;
+            return NO_ERROR;
+        default:
+            ALOGE("invalid interpolatorType: %d", interpolatorType);
+            return BAD_VALUE;
+        }
+    }
+
+    T getFirstSlope() const {
+        return mFirstSlope;
+    }
+
+    void setFirstSlope(T slope) {
+        mFirstSlope = slope;
+    }
+
+    T getLastSlope() const {
+        return mLastSlope;
+    }
+
+    void setLastSlope(T slope) {
+        mLastSlope = slope;
+    }
+
+    void clearCache() {
+        mMemo.clear();
+    }
+
+    status_t writeToParcel(Parcel *parcel) const {
+        if (parcel == nullptr) {
+            return BAD_VALUE;
+        }
+        status_t res = parcel->writeInt32(mInterpolatorType)
+                ?: parcel->writeFloat(mFirstSlope)
+                ?: parcel->writeFloat(mLastSlope)
+                ?: parcel->writeUint32((uint32_t)this->size()); // silent truncation
+        if (res != NO_ERROR) {
+            return res;
+        }
+        for (const auto &pt : *this) {
+            res = parcel->writeFloat(pt.first)
+                    ?: parcel->writeFloat(pt.second);
+            if (res != NO_ERROR) {
+                return res;
+            }
+        }
+        return NO_ERROR;
+    }
+
+    status_t readFromParcel(const Parcel &parcel) {
+        this->clear();
+        int32_t type;
+        uint32_t size;
+        status_t res = parcel.readInt32(&type)
+                        ?: parcel.readFloat(&mFirstSlope)
+                        ?: parcel.readFloat(&mLastSlope)
+                        ?: parcel.readUint32(&size)
+                        ?: setInterpolatorType((InterpolatorType)type);
+        if (res != NO_ERROR) {
+            return res;
+        }
+        // Note: We don't need to check size is within some bounds as
+        // the Parcel read will fail if size is incorrectly specified too large.
+        float lastx;
+        for (uint32_t i = 0; i < size; ++i) {
+            float x, y;
+            res = parcel.readFloat(&x)
+                    ?: parcel.readFloat(&y);
+            if (res != NO_ERROR) {
+                return res;
+            }
+            if (i > 0 && !(x > lastx) /* handle nan */
+                    || y != y /* handle nan */) {
+                // This is a std::map object which imposes sorted order
+                // automatically on emplace.
+                // Nevertheless for reading from a Parcel,
+                // we require that the points be specified monotonic in x.
+                return BAD_VALUE;
+            }
+            this->emplace(x, y);
+            lastx = x;
+        }
+        return NO_ERROR;
+    }
+
+    std::string toString() const {
+        std::stringstream ss;
+        ss << "mInterpolatorType: " << mInterpolatorType << std::endl;
+        for (const auto &pt : *this) {
+            ss << pt.first << " " << pt.second << std::endl;
+        }
+        return ss.str();
+    }
+
+private:
+    static S constrainSlope(S slope, S maxSlope) {
+        if (maxSlope > 0) {
+            slope = std::min(slope, maxSlope);
+            slope = std::max(slope, S(0)); // not globally monotonic
+        } else {
+            slope = std::max(slope, maxSlope);
+            slope = std::min(slope, S(0)); // not globally monotonic
+        }
+        return slope;
+    }
+
+    InterpolatorType mInterpolatorType;
+    bool mCache; // whether we cache spline coefficient computation
+
+    // for cubic interpolation, the boundary conditions in slope.
+    S mFirstSlope;
+    S mLastSlope;
+
+    // spline cubic polynomial coefficient cache
+    std::unordered_map<S, std::tuple<S /* c1 */, S /* c2 */, S /* c3 */>> mMemo;
+};
+
+} // namespace android
+
+#pragma pop_macro("LOG_TAG")
+
+#endif // ANDROID_INTERPOLATOR_H
diff --git a/include/media/MediaPlayerInterface.h b/include/media/MediaPlayerInterface.h
index 4e18f1f..b3e53fc 100644
--- a/include/media/MediaPlayerInterface.h
+++ b/include/media/MediaPlayerInterface.h
@@ -145,6 +145,11 @@
 
         virtual status_t    setParameters(const String8& /* keyValuePairs */) { return NO_ERROR; }
         virtual String8     getParameters(const String8& /* keys */) { return String8::empty(); }
+
+        virtual VolumeShaper::Status applyVolumeShaper(
+                                    const sp<VolumeShaper::Configuration>& configuration,
+                                    const sp<VolumeShaper::Operation>& operation);
+        virtual sp<VolumeShaper::State> getVolumeShaperState(int id);
     };
 
                         MediaPlayerBase() : mCookie(0), mNotify(0) {}
diff --git a/include/media/MmapStreamCallback.h b/include/media/MmapStreamCallback.h
new file mode 100644
index 0000000..8098e79
--- /dev/null
+++ b/include/media/MmapStreamCallback.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_MMAP_STREAM_CALLBACK_H
+#define ANDROID_AUDIO_MMAP_STREAM_CALLBACK_H
+
+#include <system/audio.h>
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+
+namespace android {
+
+
+class MmapStreamCallback : public virtual RefBase {
+  public:
+
+    /**
+     * The mmap stream should be torn down because conditions that permitted its creation with
+     * the requested parameters have changed and do not allow it to operate with the requested
+     * constraints any more.
+     */
+    virtual void onTearDown() = 0;
+
+    /**
+     * The volume to be applied to the use case specified when opening the stream has changed
+     * \param[in] channels a channel mask containing all channels the volume should be applied to.
+     * \param[in] values the volume values to be applied to each channel. The size of the vector
+     *                   should correspond to the channel count retrieved with
+     *                   audio_channel_count_from_in_mask() or audio_channel_count_from_out_mask()
+     */
+    virtual void onVolumeChanged(audio_channel_mask_t channels, Vector<float> values) = 0;
+
+    /**
+     * The device the stream is routed to/from has changed
+     * \param[in] onRoutingChanged the unique device ID of the new device.
+     */
+    virtual void onRoutingChanged(audio_port_handle_t deviceId) = 0;
+
+  protected:
+    MmapStreamCallback() {}
+    virtual ~MmapStreamCallback() {}
+};
+
+
+} // namespace android
+
+#endif // ANDROID_AUDIO_MMAP_STREAM_CALLBACK_H
diff --git a/include/media/MmapStreamInterface.h b/include/media/MmapStreamInterface.h
new file mode 100644
index 0000000..9f3731e
--- /dev/null
+++ b/include/media/MmapStreamInterface.h
@@ -0,0 +1,133 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_MMAP_STREAM_INTERFACE_H
+#define ANDROID_AUDIO_MMAP_STREAM_INTERFACE_H
+
+#include <system/audio.h>
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+
+namespace android {
+
+class MmapStreamCallback;
+
+class MmapStreamInterface : public virtual RefBase
+{
+  public:
+
+    /**
+     * Values for direction argument passed to openMmapStream()
+     */
+    typedef enum {
+        DIRECTION_OUTPUT = 0,  /**< open a playback mmap stream */
+        DIRECTION_INPUT,       /**< open a capture mmap stream */
+    } stream_direction_t;
+
+    class Client {
+     public:
+        uid_t clientUid;
+        pid_t clientPid;
+        String16 packageName;
+    };
+    /**
+     * Open a playback or capture stream in MMAP mode at the audio HAL.
+     *
+     * \note This method is implemented by AudioFlinger
+     *
+     * \param[in] direction open a playback or capture stream.
+     * \param[in] attr audio attributes defining the main use case for this stream
+     * \param[in,out] config audio parameters (sampling rate, format ...) for the stream.
+     *                       Requested parameters as input,
+     *                       Actual parameters as output
+     * \param[in] client a Client struct describing the first client using this stream.
+     * \param[in,out] deviceId audio device the stream should preferably be routed to/from
+     *                       Requested as input,
+     *                       Actual as output
+     * \param[in] callback the MmapStreamCallback interface used by AudioFlinger to notify
+     *                     condition changes affecting the stream operation
+     * \param[out] interface the MmapStreamInterface interface controlling the created stream
+     * \return OK if the stream was successfully created.
+     *         NO_INIT if AudioFlinger is not properly initialized
+     *         BAD_VALUE if the stream cannot be opened because of invalid arguments
+     *         INVALID_OPERATION if the stream cannot be opened because of platform limitations
+     */
+    static status_t openMmapStream(stream_direction_t direction,
+                                           const audio_attributes_t *attr,
+                                           audio_config_base_t *config,
+                                           const Client& client,
+                                           audio_port_handle_t *deviceId,
+                                           const sp<MmapStreamCallback>& callback,
+                                           sp<MmapStreamInterface>& interface);
+
+    /**
+     * Retrieve information on the mmap buffer used for audio samples transfer.
+     *
+     * \param[in] min_size_frames minimum buffer size requested. The actual buffer
+     *        size returned in struct audio_mmap_buffer_info can be larger.
+     * \param[out] info address at which the mmap buffer information should be returned.
+     *
+     * \return OK if the buffer was allocated.
+     *         NO_INIT in case of initialization error
+     *         BAD_VALUE if the requested buffer size is too large
+     *         INVALID_OPERATION if called out of sequence (e.g. buffer already allocated)
+     */
+    virtual status_t createMmapBuffer(int32_t minSizeFrames,
+                                      struct audio_mmap_buffer_info *info) = 0;
+
+    /**
+     * Read current read/write position in the mmap buffer with associated time stamp.
+     *
+     * \param[out] position address at which the mmap read/write position should be returned.
+     *
+     * \return OK if the position is successfully returned.
+     *         NOT_ENOUGH_DATA if the position cannot be retrieved
+     *         INVALID_OPERATION if called before createMmapBuffer()
+     */
+    virtual status_t getMmapPosition(struct audio_mmap_position *position) = 0;
+
+    /**
+     * Start a stream operating in mmap mode.
+     * createMmapBuffer() must be called before calling start()
+     *
+     * \param[in] client a Client struct describing the client starting on this stream.
+     * \param[out] handle unique handle for this instance. Used with stop().
+     * \return OK in case of success.
+     *         INVALID_OPERATION if called out of sequence
+     */
+    virtual status_t start(const Client& client, audio_port_handle_t *handle) = 0;
+
+    /**
+     * Stop a stream operating in mmap mode.
+     * Must be called after start()
+     *
+     * \param[in] handle unique handle allocated by start().
+     * \return OK in case of success.
+     *         INVALID_OPERATION if called out of sequence
+     */
+    virtual status_t stop(audio_port_handle_t handle) = 0;
+
+  protected:
+    // Subclasses can not be constructed directly by clients.
+    MmapStreamInterface() {}
+
+    // The destructor automatically closes the stream.
+    virtual ~MmapStreamInterface() {}
+};
+
+} // namespace android
+
+#endif // ANDROID_AUDIO_MMAP_STREAM_INTERFACE_H
diff --git a/include/media/VolumeShaper.h b/include/media/VolumeShaper.h
new file mode 100644
index 0000000..acb22ab
--- /dev/null
+++ b/include/media/VolumeShaper.h
@@ -0,0 +1,736 @@
+/*
+ * Copyright 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_VOLUME_SHAPER_H
+#define ANDROID_VOLUME_SHAPER_H
+
+#include <list>
+#include <math.h>
+#include <sstream>
+
+#include <binder/Parcel.h>
+#include <media/Interpolator.h>
+#include <utils/Mutex.h>
+#include <utils/RefBase.h>
+
+#pragma push_macro("LOG_TAG")
+#undef LOG_TAG
+#define LOG_TAG "VolumeShaper"
+
+// turn on VolumeShaper logging
+#if 0
+#define VS_LOG ALOGD
+#else
+#define VS_LOG(...)
+#endif
+
+namespace android {
+
+// The native VolumeShaper class mirrors the java VolumeShaper class;
+// in addition, the native class contains implementation for actual operation.
+//
+// VolumeShaper methods are not safe for multiple thread access.
+// Use VolumeHandler for thread-safe encapsulation of multiple VolumeShapers.
+//
+// Classes below written are to avoid naked pointers so there are no
+// explicit destructors required.
+
+class VolumeShaper {
+public:
+    using S = float;
+    using T = float;
+
+    static const int kSystemIdMax = 16;
+
+    // VolumeShaper::Status is equivalent to status_t if negative
+    // but if non-negative represents the id operated on.
+    // It must be expressible as an int32_t for binder purposes.
+    using Status = status_t;
+
+    class Configuration : public Interpolator<S, T>, public RefBase {
+    public:
+        /* VolumeShaper.Configuration derives from the Interpolator class and adds
+         * parameters relating to the volume shape.
+         */
+
+        // TODO document as per VolumeShaper.java flags.
+
+        // must match with VolumeShaper.java in frameworks/base
+        enum Type : int32_t {
+            TYPE_ID,
+            TYPE_SCALE,
+        };
+
+        // must match with VolumeShaper.java in frameworks/base
+        enum OptionFlag : int32_t {
+            OPTION_FLAG_NONE           = 0,
+            OPTION_FLAG_VOLUME_IN_DBFS = (1 << 0),
+            OPTION_FLAG_CLOCK_TIME     = (1 << 1),
+
+            OPTION_FLAG_ALL            = (OPTION_FLAG_VOLUME_IN_DBFS | OPTION_FLAG_CLOCK_TIME),
+        };
+
+        // bring to derived class; must match with VolumeShaper.java in frameworks/base
+        using InterpolatorType = Interpolator<S, T>::InterpolatorType;
+
+        Configuration()
+            : Interpolator<S, T>()
+            , mType(TYPE_SCALE)
+            , mOptionFlags(OPTION_FLAG_NONE)
+            , mDurationMs(1000.)
+            , mId(-1) {
+        }
+
+        Type getType() const {
+            return mType;
+        }
+
+        status_t setType(Type type) {
+            switch (type) {
+            case TYPE_ID:
+            case TYPE_SCALE:
+                mType = type;
+                return NO_ERROR;
+            default:
+                ALOGE("invalid Type: %d", type);
+                return BAD_VALUE;
+            }
+        }
+
+        OptionFlag getOptionFlags() const {
+            return mOptionFlags;
+        }
+
+        status_t setOptionFlags(OptionFlag optionFlags) {
+            if ((optionFlags & ~OPTION_FLAG_ALL) != 0) {
+                ALOGE("optionFlags has invalid bits: %#x", optionFlags);
+                return BAD_VALUE;
+            }
+            mOptionFlags = optionFlags;
+            return NO_ERROR;
+        }
+
+        double getDurationMs() const {
+            return mDurationMs;
+        }
+
+        void setDurationMs(double durationMs) {
+            mDurationMs = durationMs;
+        }
+
+        int32_t getId() const {
+            return mId;
+        }
+
+        void setId(int32_t id) {
+            mId = id;
+        }
+
+        T adjustVolume(T volume) const {
+            if ((getOptionFlags() & OPTION_FLAG_VOLUME_IN_DBFS) != 0) {
+                const T out = powf(10.f, volume / 10.);
+                VS_LOG("in: %f  out: %f", volume, out);
+                volume = out;
+            }
+            // clamp
+            if (volume < 0.f) {
+                volume = 0.f;
+            } else if (volume > 1.f) {
+                volume = 1.f;
+            }
+            return volume;
+        }
+
+        status_t checkCurve() {
+            if (mType == TYPE_ID) return NO_ERROR;
+            if (this->size() < 2) {
+                ALOGE("curve must have at least 2 points");
+                return BAD_VALUE;
+            }
+            if (first().first != 0.f || last().first != 1.f) {
+                ALOGE("curve must start at 0.f and end at 1.f");
+                return BAD_VALUE;
+            }
+            if ((getOptionFlags() & OPTION_FLAG_VOLUME_IN_DBFS) != 0) {
+                for (const auto &pt : *this) {
+                    if (!(pt.second <= 0.f) /* handle nan */) {
+                        ALOGE("positive volume dbFS");
+                        return BAD_VALUE;
+                    }
+                }
+            } else {
+                for (const auto &pt : *this) {
+                    if (!(pt.second >= 0.f) || !(pt.second <= 1.f) /* handle nan */) {
+                        ALOGE("volume < 0.f or > 1.f");
+                        return BAD_VALUE;
+                    }
+                }
+            }
+            return NO_ERROR;
+        }
+
+        void clampVolume() {
+            if ((mOptionFlags & OPTION_FLAG_VOLUME_IN_DBFS) != 0) {
+                for (auto it = this->begin(); it != this->end(); ++it) {
+                    if (!(it->second <= 0.f) /* handle nan */) {
+                        it->second = 0.f;
+                    }
+                }
+            } else {
+                for (auto it = this->begin(); it != this->end(); ++it) {
+                    if (!(it->second >= 0.f) /* handle nan */) {
+                        it->second = 0.f;
+                    } else if (!(it->second <= 1.f)) {
+                        it->second = 1.f;
+                    }
+                }
+            }
+        }
+
+        /* scaleToStartVolume() is used to set the start volume of a
+         * new VolumeShaper curve, when replacing one VolumeShaper
+         * with another using the "join" (volume match) option.
+         *
+         * It works best for monotonic volume ramps or ducks.
+         */
+        void scaleToStartVolume(T volume) {
+            if (this->size() < 2) {
+                return;
+            }
+            const T startVolume = first().second;
+            const T endVolume = last().second;
+            if (endVolume == startVolume) {
+                // match with linear ramp
+                const T offset = volume - startVolume;
+                for (auto it = this->begin(); it != this->end(); ++it) {
+                    it->second = it->second + offset * (1.f - it->first);
+                }
+            } else {
+                const T  scale = (volume - endVolume) / (startVolume - endVolume);
+                for (auto it = this->begin(); it != this->end(); ++it) {
+                    it->second = scale * (it->second - endVolume) + endVolume;
+                }
+            }
+            clampVolume();
+        }
+
+        status_t writeToParcel(Parcel *parcel) const {
+            if (parcel == nullptr) return BAD_VALUE;
+            return parcel->writeInt32((int32_t)mType)
+                    ?: parcel->writeInt32(mId)
+                    ?: mType == TYPE_ID
+                        ? NO_ERROR
+                        : parcel->writeInt32((int32_t)mOptionFlags)
+                            ?: parcel->writeDouble(mDurationMs)
+                            ?: Interpolator<S, T>::writeToParcel(parcel);
+        }
+
+        status_t readFromParcel(const Parcel &parcel) {
+            int32_t type, optionFlags;
+            return parcel.readInt32(&type)
+                    ?: setType((Type)type)
+                    ?: parcel.readInt32(&mId)
+                    ?: mType == TYPE_ID
+                        ? NO_ERROR
+                        : parcel.readInt32(&optionFlags)
+                            ?: setOptionFlags((OptionFlag)optionFlags)
+                            ?: parcel.readDouble(&mDurationMs)
+                            ?: Interpolator<S, T>::readFromParcel(parcel)
+                            ?: checkCurve();
+        }
+
+        std::string toString() const {
+            std::stringstream ss;
+            ss << "mType: " << mType << std::endl;
+            ss << "mId: " << mId << std::endl;
+            if (mType != TYPE_ID) {
+                ss << "mOptionFlags: " << mOptionFlags << std::endl;
+                ss << "mDurationMs: " << mDurationMs << std::endl;
+                ss << Interpolator<S, T>::toString().c_str();
+            }
+            return ss.str();
+        }
+
+    private:
+        Type mType;
+        int32_t mId;
+        OptionFlag mOptionFlags;
+        double mDurationMs;
+    }; // Configuration
+
+    // must match with VolumeShaper.java in frameworks/base
+    // TODO document per VolumeShaper.java flags.
+    class Operation : public RefBase {
+    public:
+        enum Flag : int32_t {
+            FLAG_NONE      = 0,
+            FLAG_REVERSE   = (1 << 0),
+            FLAG_TERMINATE = (1 << 1),
+            FLAG_JOIN      = (1 << 2),
+            FLAG_DELAY     = (1 << 3),
+
+            FLAG_ALL       = (FLAG_REVERSE | FLAG_TERMINATE | FLAG_JOIN | FLAG_DELAY),
+        };
+
+        Operation()
+            : mFlags(FLAG_NONE)
+            , mReplaceId(-1) {
+        }
+
+        explicit Operation(Flag flags, int replaceId)
+            : mFlags(flags)
+            , mReplaceId(replaceId) {
+        }
+
+        int32_t getReplaceId() const {
+            return mReplaceId;
+        }
+
+        void setReplaceId(int32_t replaceId) {
+            mReplaceId = replaceId;
+        }
+
+        Flag getFlags() const {
+            return mFlags;
+        }
+
+        status_t setFlags(Flag flags) {
+            if ((flags & ~FLAG_ALL) != 0) {
+                ALOGE("flags has invalid bits: %#x", flags);
+                return BAD_VALUE;
+            }
+            mFlags = flags;
+            return NO_ERROR;
+        }
+
+        status_t writeToParcel(Parcel *parcel) const {
+            if (parcel == nullptr) return BAD_VALUE;
+            return parcel->writeInt32((int32_t)mFlags)
+                    ?: parcel->writeInt32(mReplaceId);
+        }
+
+        status_t readFromParcel(const Parcel &parcel) {
+            int32_t flags;
+            return parcel.readInt32(&flags)
+                    ?: parcel.readInt32(&mReplaceId)
+                    ?: setFlags((Flag)flags);
+        }
+
+        std::string toString() const {
+            std::stringstream ss;
+            ss << "mFlags: " << mFlags << std::endl;
+            ss << "mReplaceId: " << mReplaceId << std::endl;
+            return ss.str();
+        }
+
+    private:
+        Flag mFlags;
+        int32_t mReplaceId;
+    }; // Operation
+
+    // must match with VolumeShaper.java in frameworks/base
+    class State : public RefBase {
+    public:
+        explicit State(T volume, S xOffset)
+            : mVolume(volume)
+            , mXOffset(xOffset) {
+        }
+
+        State()
+            : State(-1.f, -1.f) { }
+
+        T getVolume() const {
+            return mVolume;
+        }
+
+        void setVolume(T volume) {
+            mVolume = volume;
+        }
+
+        S getXOffset() const {
+            return mXOffset;
+        }
+
+        void setXOffset(S xOffset) {
+            mXOffset = xOffset;
+        }
+
+        status_t writeToParcel(Parcel *parcel) const {
+            if (parcel == nullptr) return BAD_VALUE;
+            return parcel->writeFloat(mVolume)
+                    ?: parcel->writeFloat(mXOffset);
+        }
+
+        status_t readFromParcel(const Parcel &parcel) {
+            return parcel.readFloat(&mVolume)
+                     ?: parcel.readFloat(&mXOffset);
+        }
+
+        std::string toString() const {
+            std::stringstream ss;
+            ss << "mVolume: " << mVolume << std::endl;
+            ss << "mXOffset: " << mXOffset << std::endl;
+            return ss.str();
+        }
+
+    private:
+        T mVolume;
+        S mXOffset;
+    }; // State
+
+    template <typename R>
+    class Translate {
+    public:
+        Translate()
+            : mOffset(0)
+            , mScale(1) {
+        }
+
+        R getOffset() const {
+            return mOffset;
+        }
+
+        void setOffset(R offset) {
+            mOffset = offset;
+        }
+
+        R getScale() const {
+            return mScale;
+        }
+
+        void setScale(R scale) {
+            mScale = scale;
+        }
+
+        R operator()(R in) const {
+            return mScale * (in - mOffset);
+        }
+
+        std::string toString() const {
+            std::stringstream ss;
+            ss << "mOffset: " << mOffset << std::endl;
+            ss << "mScale: " << mScale << std::endl;
+            return ss.str();
+        }
+
+    private:
+        R mOffset;
+        R mScale;
+    }; // Translate
+
+    static int64_t convertTimespecToUs(const struct timespec &tv)
+    {
+        return tv.tv_sec * 1000000ll + tv.tv_nsec / 1000;
+    }
+
+    // current monotonic time in microseconds.
+    static int64_t getNowUs()
+    {
+        struct timespec tv;
+        if (clock_gettime(CLOCK_MONOTONIC, &tv) != 0) {
+            return 0; // system is really sick, just return 0 for consistency.
+        }
+        return convertTimespecToUs(tv);
+    }
+
+    Translate<S> mXTranslate;
+    Translate<T> mYTranslate;
+    sp<VolumeShaper::Configuration> mConfiguration;
+    sp<VolumeShaper::Operation> mOperation;
+    int64_t mStartFrame;
+    T mLastVolume;
+    S mXOffset;
+
+    // TODO: Since we pass configuration and operation as shared pointers
+    // there is a potential risk that the caller may modify these after
+    // delivery.  Currently, we don't require copies made here.
+    explicit VolumeShaper(
+            const sp<VolumeShaper::Configuration> &configuration,
+            const sp<VolumeShaper::Operation> &operation)
+        : mConfiguration(configuration) // we do not make a copy
+        , mOperation(operation)         // ditto
+        , mStartFrame(-1)
+        , mLastVolume(T(1))
+        , mXOffset(0.f) {
+        if (configuration.get() != nullptr
+                && (getFlags() & VolumeShaper::Operation::FLAG_DELAY) == 0) {
+            mLastVolume = configuration->first().second;
+        }
+    }
+
+    void updatePosition(int64_t startFrame, double sampleRate) {
+        double scale = (mConfiguration->last().first - mConfiguration->first().first)
+                        / (mConfiguration->getDurationMs() * 0.001 * sampleRate);
+        const double minScale = 1. / INT64_MAX;
+        scale = std::max(scale, minScale);
+        VS_LOG("update position: scale %lf  frameCount:%lld, sampleRate:%lf",
+                scale, (long long) startFrame, sampleRate);
+        mXTranslate.setOffset(startFrame - mConfiguration->first().first / scale);
+        mXTranslate.setScale(scale);
+        VS_LOG("translate: %s", mXTranslate.toString().c_str());
+    }
+
+    // We allow a null operation here, though VolumeHandler always provides one.
+    VolumeShaper::Operation::Flag getFlags() const {
+        return mOperation == nullptr
+                ? VolumeShaper::Operation::FLAG_NONE :mOperation->getFlags();
+    }
+
+    sp<VolumeShaper::State> getState() const {
+        return new VolumeShaper::State(mLastVolume, mXOffset);
+    }
+
+    std::pair<T, bool> getVolume(int64_t trackFrameCount, double trackSampleRate) {
+        if (mConfiguration.get() == nullptr || mConfiguration->empty()) {
+            ALOGE("nonexistent VolumeShaper, removing");
+            mLastVolume = T(1);
+            mXOffset = 0.f;
+            return std::make_pair(T(1), true);
+        }
+        if ((getFlags() & VolumeShaper::Operation::FLAG_DELAY) != 0) {
+            VS_LOG("delayed VolumeShaper, ignoring");
+            mLastVolume = T(1);
+            mXOffset = 0.;
+            return std::make_pair(T(1), false);
+        }
+        const bool clockTime = (mConfiguration->getOptionFlags()
+                & VolumeShaper::Configuration::OPTION_FLAG_CLOCK_TIME) != 0;
+        const int64_t frameCount = clockTime ? getNowUs() : trackFrameCount;
+        const double sampleRate = clockTime ? 1000000 : trackSampleRate;
+
+        if (mStartFrame < 0) {
+            updatePosition(frameCount, sampleRate);
+            mStartFrame = frameCount;
+        }
+        VS_LOG("frameCount: %lld", (long long)frameCount);
+        S x = mXTranslate((T)frameCount);
+        VS_LOG("translation: %f", x);
+
+        // handle reversal of position
+        if (getFlags() & VolumeShaper::Operation::FLAG_REVERSE) {
+            x = 1.f - x;
+            VS_LOG("reversing to %f", x);
+            if (x < mConfiguration->first().first) {
+                mXOffset = 1.f;
+                const T volume = mConfiguration->adjustVolume(
+                        mConfiguration->first().second);  // persist last value
+                VS_LOG("persisting volume %f", volume);
+                mLastVolume = volume;
+                return std::make_pair(volume, false);
+            }
+            if (x > mConfiguration->last().first) {
+                mXOffset = 0.f;
+                mLastVolume = 1.f;
+                return std::make_pair(T(1), false); // too early
+            }
+        } else {
+            if (x < mConfiguration->first().first) {
+                mXOffset = 0.f;
+                mLastVolume = 1.f;
+                return std::make_pair(T(1), false); // too early
+            }
+            if (x > mConfiguration->last().first) {
+                mXOffset = 1.f;
+                const T volume = mConfiguration->adjustVolume(
+                        mConfiguration->last().second);  // persist last value
+                VS_LOG("persisting volume %f", volume);
+                mLastVolume = volume;
+                return std::make_pair(volume, false);
+            }
+        }
+        mXOffset = x;
+        // x contains the location on the volume curve to use.
+        const T unscaledVolume = mConfiguration->findY(x);
+        const T volumeChange = mYTranslate(unscaledVolume);
+        const T volume = mConfiguration->adjustVolume(volumeChange);
+        VS_LOG("volume: %f  unscaled: %f", volume, unscaledVolume);
+        mLastVolume = volume;
+        return std::make_pair(volume, false);
+    }
+
+    std::string toString() const {
+        std::stringstream ss;
+        ss << "StartFrame: " << mStartFrame << std::endl;
+        ss << mXTranslate.toString().c_str();
+        ss << mYTranslate.toString().c_str();
+        if (mConfiguration.get() == nullptr) {
+            ss << "VolumeShaper::Configuration: nullptr" << std::endl;
+        } else {
+            ss << "VolumeShaper::Configuration:" << std::endl;
+            ss << mConfiguration->toString().c_str();
+        }
+        if (mOperation.get() == nullptr) {
+            ss << "VolumeShaper::Operation: nullptr" << std::endl;
+        } else {
+            ss << "VolumeShaper::Operation:" << std::endl;
+            ss << mOperation->toString().c_str();
+        }
+        return ss.str();
+    }
+}; // VolumeShaper
+
+// VolumeHandler combines the volume factors of multiple VolumeShapers and handles
+// multiple thread access by synchronizing all public methods.
+class VolumeHandler : public RefBase {
+public:
+    using S = float;
+    using T = float;
+
+    explicit VolumeHandler(uint32_t sampleRate)
+        : mSampleRate((double)sampleRate)
+        , mLastFrame(0) {
+    }
+
+    VolumeShaper::Status applyVolumeShaper(
+            const sp<VolumeShaper::Configuration> &configuration,
+            const sp<VolumeShaper::Operation> &operation) {
+        AutoMutex _l(mLock);
+        if (configuration == nullptr) {
+            ALOGE("null configuration");
+            return VolumeShaper::Status(BAD_VALUE);
+        }
+        if (operation == nullptr) {
+            ALOGE("null operation");
+            return VolumeShaper::Status(BAD_VALUE);
+        }
+        const int32_t id = configuration->getId();
+        if (id < 0) {
+            ALOGE("negative id: %d", id);
+            return VolumeShaper::Status(BAD_VALUE);
+        }
+        VS_LOG("applyVolumeShaper id: %d", id);
+
+        switch (configuration->getType()) {
+        case VolumeShaper::Configuration::TYPE_ID: {
+            VS_LOG("trying to find id: %d", id);
+            auto it = findId_l(id);
+            if (it == mVolumeShapers.end()) {
+                VS_LOG("couldn't find id: %d\n%s", id, this->toString().c_str());
+                return VolumeShaper::Status(INVALID_OPERATION);
+            }
+            if ((it->getFlags() & VolumeShaper::Operation::FLAG_TERMINATE) != 0) {
+                VS_LOG("terminate id: %d", id);
+                mVolumeShapers.erase(it);
+                break;
+            }
+            if ((it->getFlags() & VolumeShaper::Operation::FLAG_REVERSE) !=
+                    (operation->getFlags() & VolumeShaper::Operation::FLAG_REVERSE)) {
+                const S x = it->mXTranslate((T)mLastFrame);
+                VS_LOG("translation: %f", x);
+                // reflect position
+                S target = 1.f - x;
+                if (target < it->mConfiguration->first().first) {
+                    VS_LOG("clamp to start - begin immediately");
+                    target = 0.;
+                }
+                VS_LOG("target: %f", target);
+                it->mXTranslate.setOffset(it->mXTranslate.getOffset()
+                        + (x - target) / it->mXTranslate.getScale());
+            }
+            it->mOperation = operation; // replace the operation
+        } break;
+        case VolumeShaper::Configuration::TYPE_SCALE: {
+            const int replaceId = operation->getReplaceId();
+            if (replaceId >= 0) {
+                auto replaceIt = findId_l(replaceId);
+                if (replaceIt == mVolumeShapers.end()) {
+                    ALOGW("cannot find replace id: %d", replaceId);
+                } else {
+                    if ((replaceIt->getFlags() & VolumeShaper::Operation::FLAG_JOIN) != 0) {
+                        // For join, we scale the start volume of the current configuration
+                        // to match the last-used volume of the replacing VolumeShaper.
+                        auto state = replaceIt->getState();
+                        if (state->getXOffset() >= 0) { // valid
+                            const T volume = state->getVolume();
+                            ALOGD("join: scaling start volume to %f", volume);
+                            configuration->scaleToStartVolume(volume);
+                        }
+                    }
+                    (void)mVolumeShapers.erase(replaceIt);
+                }
+            }
+            // check if we have another of the same id.
+            auto oldIt = findId_l(id);
+            if (oldIt != mVolumeShapers.end()) {
+                ALOGW("duplicate id, removing old %d", id);
+                (void)mVolumeShapers.erase(oldIt);
+            }
+            // create new VolumeShaper
+            mVolumeShapers.emplace_back(configuration, operation);
+        } break;
+        }
+        return VolumeShaper::Status(id);
+    }
+
+    sp<VolumeShaper::State> getVolumeShaperState(int id) {
+        AutoMutex _l(mLock);
+        auto it = findId_l(id);
+        if (it == mVolumeShapers.end()) {
+            return nullptr;
+        }
+        return it->getState();
+    }
+
+    T getVolume(int64_t trackFrameCount) {
+        AutoMutex _l(mLock);
+        mLastFrame = trackFrameCount;
+        T volume(1);
+        for (auto it = mVolumeShapers.begin(); it != mVolumeShapers.end();) {
+            std::pair<T, bool> shaperVolume =
+                    it->getVolume(trackFrameCount, mSampleRate);
+            volume *= shaperVolume.first;
+            if (shaperVolume.second) {
+                it = mVolumeShapers.erase(it);
+                continue;
+            }
+            ++it;
+        }
+        return volume;
+    }
+
+    std::string toString() const {
+        AutoMutex _l(mLock);
+        std::stringstream ss;
+        ss << "mSampleRate: " << mSampleRate << std::endl;
+        ss << "mLastFrame: " << mLastFrame << std::endl;
+        for (const auto &shaper : mVolumeShapers) {
+            ss << shaper.toString().c_str();
+        }
+        return ss.str();
+    }
+
+private:
+    std::list<VolumeShaper>::iterator findId_l(int32_t id) {
+        std::list<VolumeShaper>::iterator it = mVolumeShapers.begin();
+        for (; it != mVolumeShapers.end(); ++it) {
+            if (it->mConfiguration->getId() == id) {
+                break;
+            }
+        }
+        return it;
+    }
+
+    mutable Mutex mLock;
+    double mSampleRate; // in samples (frames) per second
+    int64_t mLastFrame; // logging purpose only
+    std::list<VolumeShaper> mVolumeShapers; // list provides stable iterators on erase
+}; // VolumeHandler
+
+} // namespace android
+
+#pragma pop_macro("LOG_TAG")
+
+#endif // ANDROID_VOLUME_SHAPER_H
diff --git a/include/media/mediaplayer.h b/include/media/mediaplayer.h
index 2c5ff1f..fbe3926 100644
--- a/include/media/mediaplayer.h
+++ b/include/media/mediaplayer.h
@@ -261,6 +261,11 @@
             status_t        getParameter(int key, Parcel* reply);
             status_t        setRetransmitEndpoint(const char* addrString, uint16_t port);
             status_t        setNextMediaPlayer(const sp<MediaPlayer>& player);
+
+            VolumeShaper::Status applyVolumeShaper(
+                                    const sp<VolumeShaper::Configuration>& configuration,
+                                    const sp<VolumeShaper::Operation>& operation);
+            sp<VolumeShaper::State> getVolumeShaperState(int id);
             // ModDrm
             status_t        prepareDrm(const uint8_t uuid[16], const int mode);
             status_t        releaseDrm();
diff --git a/include/media/nbaio/NBLog.h b/include/media/nbaio/NBLog.h
index acf2d31..ff10b8c 100644
--- a/include/media/nbaio/NBLog.h
+++ b/include/media/nbaio/NBLog.h
@@ -40,6 +40,12 @@
     EVENT_RESERVED,
     EVENT_STRING,               // ASCII string, not NUL-terminated
     EVENT_TIMESTAMP,            // clock_gettime(CLOCK_MONOTONIC)
+    EVENT_INTEGER,
+    EVENT_FLOAT,
+    EVENT_PID,
+    EVENT_START_FMT,            // logFormat start event: entry includes format string, following
+                                // entries contain format arguments
+    EVENT_END_FMT,              // end of logFormat argument list
 };
 
 // ---------------------------------------------------------------------------
@@ -73,6 +79,13 @@
 //  byte[2+mLength]     duplicate copy of mLength to permit reverse scan
 //  byte[3+mLength]     start of next log entry
 
+    static void    appendInt(String8 *body, const void *data);
+    static void    appendFloat(String8 *body, const void *data);
+    static void    appendPID(String8 *body, const void *data);
+    static int     handleFormat(const char *fmt, size_t length, const uint8_t *data,
+                                String8 *timestamp, String8 *body);
+    static void    appendTimestamp(String8 *body, const void *data);
+
 public:
 
 // Located in shared memory, must be POD.
@@ -133,7 +146,15 @@
     virtual void    logf(const char *fmt, ...) __attribute__ ((format (printf, 2, 3)));
     virtual void    logvf(const char *fmt, va_list ap);
     virtual void    logTimestamp();
-    virtual void    logTimestamp(const struct timespec& ts);
+    virtual void    logTimestamp(const struct timespec &ts);
+    virtual void    logInteger(const int x);
+    virtual void    logFloat(const float x);
+    virtual void    logPID();
+    virtual void    logFormat(const char *fmt, ...);
+    virtual void    logVFormat(const char *fmt, va_list ap);
+    virtual void    logStart(const char *fmt);
+    virtual void    logEnd();
+
 
     virtual bool    isEnabled() const;
 
@@ -170,7 +191,12 @@
     virtual void    logf(const char *fmt, ...) __attribute__ ((format (printf, 2, 3)));
     virtual void    logvf(const char *fmt, va_list ap);
     virtual void    logTimestamp();
-    virtual void    logTimestamp(const struct timespec& ts);
+    virtual void    logTimestamp(const struct timespec &ts);
+    virtual void    logInteger(const int x);
+    virtual void    logFloat(const float x);
+    virtual void    logPID();
+    virtual void    logStart(const char *fmt);
+    virtual void    logEnd();
 
     virtual bool    isEnabled() const;
     virtual bool    setEnabled(bool enabled);
diff --git a/include/media/stagefright/MediaExtractor.h b/include/media/stagefright/MediaExtractor.h
index 211f794..9ce6cc5 100644
--- a/include/media/stagefright/MediaExtractor.h
+++ b/include/media/stagefright/MediaExtractor.h
@@ -48,6 +48,8 @@
     // returns an empty metadata object.
     virtual sp<MetaData> getMetaData();
 
+    status_t getMetrics(Parcel *reply);
+
     enum Flags {
         CAN_SEEK_BACKWARD  = 1,  // the "seek 10secs back button"
         CAN_SEEK_FORWARD   = 2,  // the "seek 10secs forward button"
@@ -74,6 +76,8 @@
 
     MediaAnalyticsItem *mAnalyticsItem;
 
+    virtual void populateMetrics();
+
 private:
 
     typedef bool (*SnifferFunc)(
diff --git a/include/media/stagefright/NuMediaExtractor.h b/include/media/stagefright/NuMediaExtractor.h
index e414757..ad0d37b 100644
--- a/include/media/stagefright/NuMediaExtractor.h
+++ b/include/media/stagefright/NuMediaExtractor.h
@@ -78,6 +78,7 @@
     status_t getSampleTrackIndex(size_t *trackIndex);
     status_t getSampleTime(int64_t *sampleTimeUs);
     status_t getSampleMeta(sp<MetaData> *sampleMeta);
+    status_t getMetrics(Parcel *reply);
 
     bool getCachedDuration(int64_t *durationUs, bool *eos) const;
 
diff --git a/media/liboboe/Android.bp b/media/libaaudio/Android.bp
similarity index 92%
rename from media/liboboe/Android.bp
rename to media/libaaudio/Android.bp
index fd6591d..e41d62b 100644
--- a/media/liboboe/Android.bp
+++ b/media/libaaudio/Android.bp
@@ -21,8 +21,8 @@
 }
 
 ndk_library {
-    name: "liboboe.ndk",
-    symbol_file: "liboboe.map.txt",
+    name: "libaaudio.ndk",
+    symbol_file: "libaaudio.map.txt",
     first_version: "26",
     unversioned_until: "current",
 }
diff --git a/media/liboboe/Android.mk b/media/libaaudio/Android.mk
similarity index 100%
rename from media/liboboe/Android.mk
rename to media/libaaudio/Android.mk
diff --git a/media/libaaudio/Doxyfile b/media/libaaudio/Doxyfile
new file mode 100644
index 0000000..5cce2ca
--- /dev/null
+++ b/media/libaaudio/Doxyfile
@@ -0,0 +1,2313 @@
+# Doxyfile 1.8.6
+
+# This file describes the settings to be used by the documentation system
+# doxygen (www.doxygen.org) for a project.
+#
+# All text after a double hash (##) is considered a comment and is placed in
+# front of the TAG it is preceding.
+#
+# All text after a single hash (#) is considered a comment and will be ignored.
+# The format is:
+# TAG = value [value, ...]
+# For lists, items can also be appended using:
+# TAG += value [value, ...]
+# Values that contain spaces should be placed between quotes (\" \").
+
+#---------------------------------------------------------------------------
+# Project related configuration options
+#---------------------------------------------------------------------------
+
+# This tag specifies the encoding used for all characters in the config file
+# that follow. The default is UTF-8 which is also the encoding used for all text
+# before the first occurrence of this tag. Doxygen uses libiconv (or the iconv
+# built into libc) for the transcoding. See http://www.gnu.org/software/libiconv
+# for the list of possible encodings.
+# The default value is: UTF-8.
+
+DOXYFILE_ENCODING      = UTF-8
+
+# The PROJECT_NAME tag is a single word (or a sequence of words surrounded by
+# double-quotes, unless you are using Doxywizard) that should identify the
+# project for which the documentation is generated. This name is used in the
+# title of most generated pages and in a few other places.
+# The default value is: My Project.
+
+PROJECT_NAME           = "AAudio"
+
+# The PROJECT_NUMBER tag can be used to enter a project or revision number. This
+# could be handy for archiving the generated documentation or if some version
+# control system is used.
+
+PROJECT_NUMBER         =
+
+# Using the PROJECT_BRIEF tag one can provide an optional one line description
+# for a project that appears at the top of each page and should give viewer a
+# quick idea about the purpose of the project. Keep the description short.
+
+PROJECT_BRIEF          =
+
+# With the PROJECT_LOGO tag one can specify an logo or icon that is included in
+# the documentation. The maximum height of the logo should not exceed 55 pixels
+# and the maximum width should not exceed 200 pixels. Doxygen will copy the logo
+# to the output directory.
+
+PROJECT_LOGO           =
+
+# The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute) path
+# into which the generated documentation will be written. If a relative path is
+# entered, it will be relative to the location where doxygen was started. If
+# left blank the current directory will be used.
+
+OUTPUT_DIRECTORY       =
+
+# If the CREATE_SUBDIRS tag is set to YES, then doxygen will create 4096 sub-
+# directories (in 2 levels) under the output directory of each output format and
+# will distribute the generated files over these directories. Enabling this
+# option can be useful when feeding doxygen a huge amount of source files, where
+# putting all generated files in the same directory would otherwise causes
+# performance problems for the file system.
+# The default value is: NO.
+
+CREATE_SUBDIRS         = NO
+
+# The OUTPUT_LANGUAGE tag is used to specify the language in which all
+# documentation generated by doxygen is written. Doxygen will use this
+# information to generate all constant output in the proper language.
+# Possible values are: Afrikaans, Arabic, Armenian, Brazilian, Catalan, Chinese,
+# Chinese-Traditional, Croatian, Czech, Danish, Dutch, English (United States),
+# Esperanto, Farsi (Persian), Finnish, French, German, Greek, Hungarian,
+# Indonesian, Italian, Japanese, Japanese-en (Japanese with English messages),
+# Korean, Korean-en (Korean with English messages), Latvian, Lithuanian,
+# Macedonian, Norwegian, Persian (Farsi), Polish, Portuguese, Romanian, Russian,
+# Serbian, Serbian-Cyrillic, Slovak, Slovene, Spanish, Swedish, Turkish,
+# Ukrainian and Vietnamese.
+# The default value is: English.
+
+OUTPUT_LANGUAGE        = English
+
+# If the BRIEF_MEMBER_DESC tag is set to YES doxygen will include brief member
+# descriptions after the members that are listed in the file and class
+# documentation (similar to Javadoc). Set to NO to disable this.
+# The default value is: YES.
+
+BRIEF_MEMBER_DESC      = YES
+
+# If the REPEAT_BRIEF tag is set to YES doxygen will prepend the brief
+# description of a member or function before the detailed description
+#
+# Note: If both HIDE_UNDOC_MEMBERS and BRIEF_MEMBER_DESC are set to NO, the
+# brief descriptions will be completely suppressed.
+# The default value is: YES.
+
+REPEAT_BRIEF           = YES
+
+# This tag implements a quasi-intelligent brief description abbreviator that is
+# used to form the text in various listings. Each string in this list, if found
+# as the leading text of the brief description, will be stripped from the text
+# and the result, after processing the whole list, is used as the annotated
+# text. Otherwise, the brief description is used as-is. If left blank, the
+# following values are used ($name is automatically replaced with the name of
+# the entity):The $name class, The $name widget, The $name file, is, provides,
+# specifies, contains, represents, a, an and the.
+
+ABBREVIATE_BRIEF       =
+
+# If the ALWAYS_DETAILED_SEC and REPEAT_BRIEF tags are both set to YES then
+# doxygen will generate a detailed section even if there is only a brief
+# description.
+# The default value is: NO.
+
+ALWAYS_DETAILED_SEC    = NO
+
+# If the INLINE_INHERITED_MEMB tag is set to YES, doxygen will show all
+# inherited members of a class in the documentation of that class as if those
+# members were ordinary class members. Constructors, destructors and assignment
+# operators of the base classes will not be shown.
+# The default value is: NO.
+
+INLINE_INHERITED_MEMB  = NO
+
+# If the FULL_PATH_NAMES tag is set to YES doxygen will prepend the full path
+# before files name in the file list and in the header files. If set to NO the
+# shortest path that makes the file name unique will be used
+# The default value is: YES.
+
+FULL_PATH_NAMES        = YES
+
+# The STRIP_FROM_PATH tag can be used to strip a user-defined part of the path.
+# Stripping is only done if one of the specified strings matches the left-hand
+# part of the path. The tag can be used to show relative paths in the file list.
+# If left blank the directory from which doxygen is run is used as the path to
+# strip.
+#
+# Note that you can specify absolute paths here, but also relative paths, which
+# will be relative from the directory where doxygen is started.
+# This tag requires that the tag FULL_PATH_NAMES is set to YES.
+
+STRIP_FROM_PATH        =
+
+# The STRIP_FROM_INC_PATH tag can be used to strip a user-defined part of the
+# path mentioned in the documentation of a class, which tells the reader which
+# header file to include in order to use a class. If left blank only the name of
+# the header file containing the class definition is used. Otherwise one should
+# specify the list of include paths that are normally passed to the compiler
+# using the -I flag.
+
+STRIP_FROM_INC_PATH    =
+
+# If the SHORT_NAMES tag is set to YES, doxygen will generate much shorter (but
+# less readable) file names. This can be useful is your file systems doesn't
+# support long names like on DOS, Mac, or CD-ROM.
+# The default value is: NO.
+
+SHORT_NAMES            = NO
+
+# If the JAVADOC_AUTOBRIEF tag is set to YES then doxygen will interpret the
+# first line (until the first dot) of a Javadoc-style comment as the brief
+# description. If set to NO, the Javadoc-style will behave just like regular Qt-
+# style comments (thus requiring an explicit @brief command for a brief
+# description.)
+# The default value is: NO.
+
+JAVADOC_AUTOBRIEF      = NO
+
+# If the QT_AUTOBRIEF tag is set to YES then doxygen will interpret the first
+# line (until the first dot) of a Qt-style comment as the brief description. If
+# set to NO, the Qt-style will behave just like regular Qt-style comments (thus
+# requiring an explicit \brief command for a brief description.)
+# The default value is: NO.
+
+QT_AUTOBRIEF           = NO
+
+# The MULTILINE_CPP_IS_BRIEF tag can be set to YES to make doxygen treat a
+# multi-line C++ special comment block (i.e. a block of //! or /// comments) as
+# a brief description. This used to be the default behavior. The new default is
+# to treat a multi-line C++ comment block as a detailed description. Set this
+# tag to YES if you prefer the old behavior instead.
+#
+# Note that setting this tag to YES also means that rational rose comments are
+# not recognized any more.
+# The default value is: NO.
+
+MULTILINE_CPP_IS_BRIEF = NO
+
+# If the INHERIT_DOCS tag is set to YES then an undocumented member inherits the
+# documentation from any documented member that it re-implements.
+# The default value is: YES.
+
+INHERIT_DOCS           = YES
+
+# If the SEPARATE_MEMBER_PAGES tag is set to YES, then doxygen will produce a
+# new page for each member. If set to NO, the documentation of a member will be
+# part of the file/class/namespace that contains it.
+# The default value is: NO.
+
+SEPARATE_MEMBER_PAGES  = NO
+
+# The TAB_SIZE tag can be used to set the number of spaces in a tab. Doxygen
+# uses this value to replace tabs by spaces in code fragments.
+# Minimum value: 1, maximum value: 16, default value: 4.
+
+TAB_SIZE               = 4
+
+# This tag can be used to specify a number of aliases that act as commands in
+# the documentation. An alias has the form:
+# name=value
+# For example adding
+# "sideeffect=@par Side Effects:\n"
+# will allow you to put the command \sideeffect (or @sideeffect) in the
+# documentation, which will result in a user-defined paragraph with heading
+# "Side Effects:". You can put \n's in the value part of an alias to insert
+# newlines.
+
+ALIASES                =
+
+# This tag can be used to specify a number of word-keyword mappings (TCL only).
+# A mapping has the form "name=value". For example adding "class=itcl::class"
+# will allow you to use the command class in the itcl::class meaning.
+
+TCL_SUBST              =
+
+# Set the OPTIMIZE_OUTPUT_FOR_C tag to YES if your project consists of C sources
+# only. Doxygen will then generate output that is more tailored for C. For
+# instance, some of the names that are used will be different. The list of all
+# members will be omitted, etc.
+# The default value is: NO.
+
+OPTIMIZE_OUTPUT_FOR_C  = NO
+
+# Set the OPTIMIZE_OUTPUT_JAVA tag to YES if your project consists of Java or
+# Python sources only. Doxygen will then generate output that is more tailored
+# for that language. For instance, namespaces will be presented as packages,
+# qualified scopes will look different, etc.
+# The default value is: NO.
+
+OPTIMIZE_OUTPUT_JAVA   = NO
+
+# Set the OPTIMIZE_FOR_FORTRAN tag to YES if your project consists of Fortran
+# sources. Doxygen will then generate output that is tailored for Fortran.
+# The default value is: NO.
+
+OPTIMIZE_FOR_FORTRAN   = NO
+
+# Set the OPTIMIZE_OUTPUT_VHDL tag to YES if your project consists of VHDL
+# sources. Doxygen will then generate output that is tailored for VHDL.
+# The default value is: NO.
+
+OPTIMIZE_OUTPUT_VHDL   = NO
+
+# Doxygen selects the parser to use depending on the extension of the files it
+# parses. With this tag you can assign which parser to use for a given
+# extension. Doxygen has a built-in mapping, but you can override or extend it
+# using this tag. The format is ext=language, where ext is a file extension, and
+# language is one of the parsers supported by doxygen: IDL, Java, Javascript,
+# C#, C, C++, D, PHP, Objective-C, Python, Fortran, VHDL. For instance to make
+# doxygen treat .inc files as Fortran files (default is PHP), and .f files as C
+# (default is Fortran), use: inc=Fortran f=C.
+#
+# Note For files without extension you can use no_extension as a placeholder.
+#
+# Note that for custom extensions you also need to set FILE_PATTERNS otherwise
+# the files are not read by doxygen.
+
+EXTENSION_MAPPING      =
+
+# If the MARKDOWN_SUPPORT tag is enabled then doxygen pre-processes all comments
+# according to the Markdown format, which allows for more readable
+# documentation. See http://daringfireball.net/projects/markdown/ for details.
+# The output of markdown processing is further processed by doxygen, so you can
+# mix doxygen, HTML, and XML commands with Markdown formatting. Disable only in
+# case of backward compatibilities issues.
+# The default value is: YES.
+
+MARKDOWN_SUPPORT       = YES
+
+# When enabled doxygen tries to link words that correspond to documented
+# classes, or namespaces to their corresponding documentation. Such a link can
+# be prevented in individual cases by by putting a % sign in front of the word
+# or globally by setting AUTOLINK_SUPPORT to NO.
+# The default value is: YES.
+
+AUTOLINK_SUPPORT       = YES
+
+# If you use STL classes (i.e. std::string, std::vector, etc.) but do not want
+# to include (a tag file for) the STL sources as input, then you should set this
+# tag to YES in order to let doxygen match functions declarations and
+# definitions whose arguments contain STL classes (e.g. func(std::string);
+# versus func(std::string) {}). This also make the inheritance and collaboration
+# diagrams that involve STL classes more complete and accurate.
+# The default value is: NO.
+
+BUILTIN_STL_SUPPORT    = NO
+
+# If you use Microsoft's C++/CLI language, you should set this option to YES to
+# enable parsing support.
+# The default value is: NO.
+
+CPP_CLI_SUPPORT        = NO
+
+# Set the SIP_SUPPORT tag to YES if your project consists of sip (see:
+# http://www.riverbankcomputing.co.uk/software/sip/intro) sources only. Doxygen
+# will parse them like normal C++ but will assume all classes use public instead
+# of private inheritance when no explicit protection keyword is present.
+# The default value is: NO.
+
+SIP_SUPPORT            = NO
+
+# For Microsoft's IDL there are propget and propput attributes to indicate
+# getter and setter methods for a property. Setting this option to YES will make
+# doxygen to replace the get and set methods by a property in the documentation.
+# This will only work if the methods are indeed getting or setting a simple
+# type. If this is not the case, or you want to show the methods anyway, you
+# should set this option to NO.
+# The default value is: YES.
+
+IDL_PROPERTY_SUPPORT   = YES
+
+# If member grouping is used in the documentation and the DISTRIBUTE_GROUP_DOC
+# tag is set to YES, then doxygen will reuse the documentation of the first
+# member in the group (if any) for the other members of the group. By default
+# all members of a group must be documented explicitly.
+# The default value is: NO.
+
+DISTRIBUTE_GROUP_DOC   = NO
+
+# Set the SUBGROUPING tag to YES to allow class member groups of the same type
+# (for instance a group of public functions) to be put as a subgroup of that
+# type (e.g. under the Public Functions section). Set it to NO to prevent
+# subgrouping. Alternatively, this can be done per class using the
+# \nosubgrouping command.
+# The default value is: YES.
+
+SUBGROUPING            = YES
+
+# When the INLINE_GROUPED_CLASSES tag is set to YES, classes, structs and unions
+# are shown inside the group in which they are included (e.g. using \ingroup)
+# instead of on a separate page (for HTML and Man pages) or section (for LaTeX
+# and RTF).
+#
+# Note that this feature does not work in combination with
+# SEPARATE_MEMBER_PAGES.
+# The default value is: NO.
+
+INLINE_GROUPED_CLASSES = NO
+
+# When the INLINE_SIMPLE_STRUCTS tag is set to YES, structs, classes, and unions
+# with only public data fields or simple typedef fields will be shown inline in
+# the documentation of the scope in which they are defined (i.e. file,
+# namespace, or group documentation), provided this scope is documented. If set
+# to NO, structs, classes, and unions are shown on a separate page (for HTML and
+# Man pages) or section (for LaTeX and RTF).
+# The default value is: NO.
+
+INLINE_SIMPLE_STRUCTS  = NO
+
+# When TYPEDEF_HIDES_STRUCT tag is enabled, a typedef of a struct, union, or
+# enum is documented as struct, union, or enum with the name of the typedef. So
+# typedef struct TypeS {} TypeT, will appear in the documentation as a struct
+# with name TypeT. When disabled the typedef will appear as a member of a file,
+# namespace, or class. And the struct will be named TypeS. This can typically be
+# useful for C code in case the coding convention dictates that all compound
+# types are typedef'ed and only the typedef is referenced, never the tag name.
+# The default value is: NO.
+
+TYPEDEF_HIDES_STRUCT   = NO
+
+# The size of the symbol lookup cache can be set using LOOKUP_CACHE_SIZE. This
+# cache is used to resolve symbols given their name and scope. Since this can be
+# an expensive process and often the same symbol appears multiple times in the
+# code, doxygen keeps a cache of pre-resolved symbols. If the cache is too small
+# doxygen will become slower. If the cache is too large, memory is wasted. The
+# cache size is given by this formula: 2^(16+LOOKUP_CACHE_SIZE). The valid range
+# is 0..9, the default is 0, corresponding to a cache size of 2^16=65536
+# symbols. At the end of a run doxygen will report the cache usage and suggest
+# the optimal cache size from a speed point of view.
+# Minimum value: 0, maximum value: 9, default value: 0.
+
+LOOKUP_CACHE_SIZE      = 0
+
+#---------------------------------------------------------------------------
+# Build related configuration options
+#---------------------------------------------------------------------------
+
+# If the EXTRACT_ALL tag is set to YES doxygen will assume all entities in
+# documentation are documented, even if no documentation was available. Private
+# class members and static file members will be hidden unless the
+# EXTRACT_PRIVATE respectively EXTRACT_STATIC tags are set to YES.
+# Note: This will also disable the warnings about undocumented members that are
+# normally produced when WARNINGS is set to YES.
+# The default value is: NO.
+
+EXTRACT_ALL            = YES
+
+# If the EXTRACT_PRIVATE tag is set to YES all private members of a class will
+# be included in the documentation.
+# The default value is: NO.
+
+EXTRACT_PRIVATE        = NO
+
+# If the EXTRACT_PACKAGE tag is set to YES all members with package or internal
+# scope will be included in the documentation.
+# The default value is: NO.
+
+EXTRACT_PACKAGE        = NO
+
+# If the EXTRACT_STATIC tag is set to YES all static members of a file will be
+# included in the documentation.
+# The default value is: NO.
+
+EXTRACT_STATIC         = YES
+
+# If the EXTRACT_LOCAL_CLASSES tag is set to YES classes (and structs) defined
+# locally in source files will be included in the documentation. If set to NO
+# only classes defined in header files are included. Does not have any effect
+# for Java sources.
+# The default value is: YES.
+
+EXTRACT_LOCAL_CLASSES  = YES
+
+# This flag is only useful for Objective-C code. When set to YES local methods,
+# which are defined in the implementation section but not in the interface are
+# included in the documentation. If set to NO only methods in the interface are
+# included.
+# The default value is: NO.
+
+EXTRACT_LOCAL_METHODS  = NO
+
+# If this flag is set to YES, the members of anonymous namespaces will be
+# extracted and appear in the documentation as a namespace called
+# 'anonymous_namespace{file}', where file will be replaced with the base name of
+# the file that contains the anonymous namespace. By default anonymous namespace
+# are hidden.
+# The default value is: NO.
+
+EXTRACT_ANON_NSPACES   = NO
+
+# If the HIDE_UNDOC_MEMBERS tag is set to YES, doxygen will hide all
+# undocumented members inside documented classes or files. If set to NO these
+# members will be included in the various overviews, but no documentation
+# section is generated. This option has no effect if EXTRACT_ALL is enabled.
+# The default value is: NO.
+
+HIDE_UNDOC_MEMBERS     = NO
+
+# If the HIDE_UNDOC_CLASSES tag is set to YES, doxygen will hide all
+# undocumented classes that are normally visible in the class hierarchy. If set
+# to NO these classes will be included in the various overviews. This option has
+# no effect if EXTRACT_ALL is enabled.
+# The default value is: NO.
+
+HIDE_UNDOC_CLASSES     = NO
+
+# If the HIDE_FRIEND_COMPOUNDS tag is set to YES, doxygen will hide all friend
+# (class|struct|union) declarations. If set to NO these declarations will be
+# included in the documentation.
+# The default value is: NO.
+
+HIDE_FRIEND_COMPOUNDS  = NO
+
+# If the HIDE_IN_BODY_DOCS tag is set to YES, doxygen will hide any
+# documentation blocks found inside the body of a function. If set to NO these
+# blocks will be appended to the function's detailed documentation block.
+# The default value is: NO.
+
+HIDE_IN_BODY_DOCS      = NO
+
+# The INTERNAL_DOCS tag determines if documentation that is typed after a
+# \internal command is included. If the tag is set to NO then the documentation
+# will be excluded. Set it to YES to include the internal documentation.
+# The default value is: NO.
+
+INTERNAL_DOCS          = NO
+
+# If the CASE_SENSE_NAMES tag is set to NO then doxygen will only generate file
+# names in lower-case letters. If set to YES upper-case letters are also
+# allowed. This is useful if you have classes or files whose names only differ
+# in case and if your file system supports case sensitive file names. Windows
+# and Mac users are advised to set this option to NO.
+# The default value is: system dependent.
+
+CASE_SENSE_NAMES       = YES
+
+# If the HIDE_SCOPE_NAMES tag is set to NO then doxygen will show members with
+# their full class and namespace scopes in the documentation. If set to YES the
+# scope will be hidden.
+# The default value is: NO.
+
+HIDE_SCOPE_NAMES       = NO
+
+# If the SHOW_INCLUDE_FILES tag is set to YES then doxygen will put a list of
+# the files that are included by a file in the documentation of that file.
+# The default value is: YES.
+
+SHOW_INCLUDE_FILES     = YES
+
+# If the SHOW_GROUPED_MEMB_INC tag is set to YES then Doxygen will add for each
+# grouped member an include statement to the documentation, telling the reader
+# which file to include in order to use the member.
+# The default value is: NO.
+
+SHOW_GROUPED_MEMB_INC  = NO
+
+# If the FORCE_LOCAL_INCLUDES tag is set to YES then doxygen will list include
+# files with double quotes in the documentation rather than with sharp brackets.
+# The default value is: NO.
+
+FORCE_LOCAL_INCLUDES   = NO
+
+# If the INLINE_INFO tag is set to YES then a tag [inline] is inserted in the
+# documentation for inline members.
+# The default value is: YES.
+
+INLINE_INFO            = YES
+
+# If the SORT_MEMBER_DOCS tag is set to YES then doxygen will sort the
+# (detailed) documentation of file and class members alphabetically by member
+# name. If set to NO the members will appear in declaration order.
+# The default value is: YES.
+
+SORT_MEMBER_DOCS       = YES
+
+# If the SORT_BRIEF_DOCS tag is set to YES then doxygen will sort the brief
+# descriptions of file, namespace and class members alphabetically by member
+# name. If set to NO the members will appear in declaration order. Note that
+# this will also influence the order of the classes in the class list.
+# The default value is: NO.
+
+SORT_BRIEF_DOCS        = NO
+
+# If the SORT_MEMBERS_CTORS_1ST tag is set to YES then doxygen will sort the
+# (brief and detailed) documentation of class members so that constructors and
+# destructors are listed first. If set to NO the constructors will appear in the
+# respective orders defined by SORT_BRIEF_DOCS and SORT_MEMBER_DOCS.
+# Note: If SORT_BRIEF_DOCS is set to NO this option is ignored for sorting brief
+# member documentation.
+# Note: If SORT_MEMBER_DOCS is set to NO this option is ignored for sorting
+# detailed member documentation.
+# The default value is: NO.
+
+SORT_MEMBERS_CTORS_1ST = NO
+
+# If the SORT_GROUP_NAMES tag is set to YES then doxygen will sort the hierarchy
+# of group names into alphabetical order. If set to NO the group names will
+# appear in their defined order.
+# The default value is: NO.
+
+SORT_GROUP_NAMES       = NO
+
+# If the SORT_BY_SCOPE_NAME tag is set to YES, the class list will be sorted by
+# fully-qualified names, including namespaces. If set to NO, the class list will
+# be sorted only by class name, not including the namespace part.
+# Note: This option is not very useful if HIDE_SCOPE_NAMES is set to YES.
+# Note: This option applies only to the class list, not to the alphabetical
+# list.
+# The default value is: NO.
+
+SORT_BY_SCOPE_NAME     = NO
+
+# If the STRICT_PROTO_MATCHING option is enabled and doxygen fails to do proper
+# type resolution of all parameters of a function it will reject a match between
+# the prototype and the implementation of a member function even if there is
+# only one candidate or it is obvious which candidate to choose by doing a
+# simple string match. By disabling STRICT_PROTO_MATCHING doxygen will still
+# accept a match between prototype and implementation in such cases.
+# The default value is: NO.
+
+STRICT_PROTO_MATCHING  = NO
+
+# The GENERATE_TODOLIST tag can be used to enable ( YES) or disable ( NO) the
+# todo list. This list is created by putting \todo commands in the
+# documentation.
+# The default value is: YES.
+
+GENERATE_TODOLIST      = YES
+
+# The GENERATE_TESTLIST tag can be used to enable ( YES) or disable ( NO) the
+# test list. This list is created by putting \test commands in the
+# documentation.
+# The default value is: YES.
+
+GENERATE_TESTLIST      = YES
+
+# The GENERATE_BUGLIST tag can be used to enable ( YES) or disable ( NO) the bug
+# list. This list is created by putting \bug commands in the documentation.
+# The default value is: YES.
+
+GENERATE_BUGLIST       = YES
+
+# The GENERATE_DEPRECATEDLIST tag can be used to enable ( YES) or disable ( NO)
+# the deprecated list. This list is created by putting \deprecated commands in
+# the documentation.
+# The default value is: YES.
+
+GENERATE_DEPRECATEDLIST= YES
+
+# The ENABLED_SECTIONS tag can be used to enable conditional documentation
+# sections, marked by \if <section_label> ... \endif and \cond <section_label>
+# ... \endcond blocks.
+
+ENABLED_SECTIONS       =
+
+# The MAX_INITIALIZER_LINES tag determines the maximum number of lines that the
+# initial value of a variable or macro / define can have for it to appear in the
+# documentation. If the initializer consists of more lines than specified here
+# it will be hidden. Use a value of 0 to hide initializers completely. The
+# appearance of the value of individual variables and macros / defines can be
+# controlled using \showinitializer or \hideinitializer command in the
+# documentation regardless of this setting.
+# Minimum value: 0, maximum value: 10000, default value: 30.
+
+MAX_INITIALIZER_LINES  = 30
+
+# Set the SHOW_USED_FILES tag to NO to disable the list of files generated at
+# the bottom of the documentation of classes and structs. If set to YES the list
+# will mention the files that were used to generate the documentation.
+# The default value is: YES.
+
+SHOW_USED_FILES        = YES
+
+# Set the SHOW_FILES tag to NO to disable the generation of the Files page. This
+# will remove the Files entry from the Quick Index and from the Folder Tree View
+# (if specified).
+# The default value is: YES.
+
+SHOW_FILES             = YES
+
+# Set the SHOW_NAMESPACES tag to NO to disable the generation of the Namespaces
+# page. This will remove the Namespaces entry from the Quick Index and from the
+# Folder Tree View (if specified).
+# The default value is: YES.
+
+SHOW_NAMESPACES        = YES
+
+# The FILE_VERSION_FILTER tag can be used to specify a program or script that
+# doxygen should invoke to get the current version for each file (typically from
+# the version control system). Doxygen will invoke the program by executing (via
+# popen()) the command command input-file, where command is the value of the
+# FILE_VERSION_FILTER tag, and input-file is the name of an input file provided
+# by doxygen. Whatever the program writes to standard output is used as the file
+# version. For an example see the documentation.
+
+FILE_VERSION_FILTER    =
+
+# The LAYOUT_FILE tag can be used to specify a layout file which will be parsed
+# by doxygen. The layout file controls the global structure of the generated
+# output files in an output format independent way. To create the layout file
+# that represents doxygen's defaults, run doxygen with the -l option. You can
+# optionally specify a file name after the option, if omitted DoxygenLayout.xml
+# will be used as the name of the layout file.
+#
+# Note that if you run doxygen from a directory containing a file called
+# DoxygenLayout.xml, doxygen will parse it automatically even if the LAYOUT_FILE
+# tag is left empty.
+
+LAYOUT_FILE            =
+
+# The CITE_BIB_FILES tag can be used to specify one or more bib files containing
+# the reference definitions. This must be a list of .bib files. The .bib
+# extension is automatically appended if omitted. This requires the bibtex tool
+# to be installed. See also http://en.wikipedia.org/wiki/BibTeX for more info.
+# For LaTeX the style of the bibliography can be controlled using
+# LATEX_BIB_STYLE. To use this feature you need bibtex and perl available in the
+# search path. Do not use file names with spaces, bibtex cannot handle them. See
+# also \cite for info how to create references.
+
+CITE_BIB_FILES         =
+
+#---------------------------------------------------------------------------
+# Configuration options related to warning and progress messages
+#---------------------------------------------------------------------------
+
+# The QUIET tag can be used to turn on/off the messages that are generated to
+# standard output by doxygen. If QUIET is set to YES this implies that the
+# messages are off.
+# The default value is: NO.
+
+QUIET                  = YES
+
+# The WARNINGS tag can be used to turn on/off the warning messages that are
+# generated to standard error ( stderr) by doxygen. If WARNINGS is set to YES
+# this implies that the warnings are on.
+#
+# Tip: Turn warnings on while writing the documentation.
+# The default value is: YES.
+
+WARNINGS               = YES
+
+# If the WARN_IF_UNDOCUMENTED tag is set to YES, then doxygen will generate
+# warnings for undocumented members. If EXTRACT_ALL is set to YES then this flag
+# will automatically be disabled.
+# The default value is: YES.
+
+WARN_IF_UNDOCUMENTED   = YES
+
+# If the WARN_IF_DOC_ERROR tag is set to YES, doxygen will generate warnings for
+# potential errors in the documentation, such as not documenting some parameters
+# in a documented function, or documenting parameters that don't exist or using
+# markup commands wrongly.
+# The default value is: YES.
+
+WARN_IF_DOC_ERROR      = YES
+
+# This WARN_NO_PARAMDOC option can be enabled to get warnings for functions that
+# are documented, but have no documentation for their parameters or return
+# value. If set to NO doxygen will only warn about wrong or incomplete parameter
+# documentation, but not about the absence of documentation.
+# The default value is: NO.
+
+WARN_NO_PARAMDOC       = NO
+
+# The WARN_FORMAT tag determines the format of the warning messages that doxygen
+# can produce. The string should contain the $file, $line, and $text tags, which
+# will be replaced by the file and line number from which the warning originated
+# and the warning text. Optionally the format may contain $version, which will
+# be replaced by the version of the file (if it could be obtained via
+# FILE_VERSION_FILTER)
+# The default value is: $file:$line: $text.
+
+WARN_FORMAT            = "$file:$line: $text"
+
+# The WARN_LOGFILE tag can be used to specify a file to which warning and error
+# messages should be written. If left blank the output is written to standard
+# error (stderr).
+
+WARN_LOGFILE           =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the input files
+#---------------------------------------------------------------------------
+
+# The INPUT tag is used to specify the files and/or directories that contain
+# documented source files. You may enter file names like myfile.cpp or
+# directories like /usr/src/myproject. Separate the files or directories with
+# spaces.
+# Note: If this tag is empty the current directory is searched.
+
+INPUT                  = include/aaudio/AAudioDefinitions.h \
+                         include/aaudio/AAudio.h \
+                         src/legacy/AudioStreamTrack.h \
+                         src/legacy/AudioStreamRecord.h \
+                         src/legacy/AAudioLegacy.h \
+                         src/core/AudioStreamBuilder.h \
+                         src/core/AudioStream.h \
+                         src/utility/HandleTracker.h \
+                         src/utility/MonotonicCounter.h \
+                         src/utility/AudioClock.h \
+                         src/utility/AAudioUtilities.h
+
+# This tag can be used to specify the character encoding of the source files
+# that doxygen parses. Internally doxygen uses the UTF-8 encoding. Doxygen uses
+# libiconv (or the iconv built into libc) for the transcoding. See the libiconv
+# documentation (see: http://www.gnu.org/software/libiconv) for the list of
+# possible encodings.
+# The default value is: UTF-8.
+
+INPUT_ENCODING         = UTF-8
+
+# If the value of the INPUT tag contains directories, you can use the
+# FILE_PATTERNS tag to specify one or more wildcard patterns (like *.cpp and
+# *.h) to filter out the source-files in the directories. If left blank the
+# following patterns are tested:*.c, *.cc, *.cxx, *.cpp, *.c++, *.java, *.ii,
+# *.ixx, *.ipp, *.i++, *.inl, *.idl, *.ddl, *.odl, *.h, *.hh, *.hxx, *.hpp,
+# *.h++, *.cs, *.d, *.php, *.php4, *.php5, *.phtml, *.inc, *.m, *.markdown,
+# *.md, *.mm, *.dox, *.py, *.f90, *.f, *.for, *.tcl, *.vhd, *.vhdl, *.ucf,
+# *.qsf, *.as and *.js.
+
+FILE_PATTERNS          =
+
+# The RECURSIVE tag can be used to specify whether or not subdirectories should
+# be searched for input files as well.
+# The default value is: NO.
+
+RECURSIVE              = NO
+
+# The EXCLUDE tag can be used to specify files and/or directories that should be
+# excluded from the INPUT source files. This way you can easily exclude a
+# subdirectory from a directory tree whose root is specified with the INPUT tag.
+#
+# Note that relative paths are relative to the directory from which doxygen is
+# run.
+
+EXCLUDE                =
+
+# The EXCLUDE_SYMLINKS tag can be used to select whether or not files or
+# directories that are symbolic links (a Unix file system feature) are excluded
+# from the input.
+# The default value is: NO.
+
+EXCLUDE_SYMLINKS       = NO
+
+# If the value of the INPUT tag contains directories, you can use the
+# EXCLUDE_PATTERNS tag to specify one or more wildcard patterns to exclude
+# certain files from those directories.
+#
+# Note that the wildcards are matched against the file with absolute path, so to
+# exclude all test directories for example use the pattern */test/*
+
+EXCLUDE_PATTERNS       =
+
+# The EXCLUDE_SYMBOLS tag can be used to specify one or more symbol names
+# (namespaces, classes, functions, etc.) that should be excluded from the
+# output. The symbol name can be a fully qualified name, a word, or if the
+# wildcard * is used, a substring. Examples: ANamespace, AClass,
+# AClass::ANamespace, ANamespace::*Test
+#
+# Note that the wildcards are matched against the file with absolute path, so to
+# exclude all test directories use the pattern */test/*
+
+EXCLUDE_SYMBOLS        =
+
+# The EXAMPLE_PATH tag can be used to specify one or more files or directories
+# that contain example code fragments that are included (see the \include
+# command).
+
+EXAMPLE_PATH           =
+
+# If the value of the EXAMPLE_PATH tag contains directories, you can use the
+# EXAMPLE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp and
+# *.h) to filter out the source-files in the directories. If left blank all
+# files are included.
+
+EXAMPLE_PATTERNS       =
+
+# If the EXAMPLE_RECURSIVE tag is set to YES then subdirectories will be
+# searched for input files to be used with the \include or \dontinclude commands
+# irrespective of the value of the RECURSIVE tag.
+# The default value is: NO.
+
+EXAMPLE_RECURSIVE      = NO
+
+# The IMAGE_PATH tag can be used to specify one or more files or directories
+# that contain images that are to be included in the documentation (see the
+# \image command).
+
+IMAGE_PATH             =
+
+# The INPUT_FILTER tag can be used to specify a program that doxygen should
+# invoke to filter for each input file. Doxygen will invoke the filter program
+# by executing (via popen()) the command:
+#
+# <filter> <input-file>
+#
+# where <filter> is the value of the INPUT_FILTER tag, and <input-file> is the
+# name of an input file. Doxygen will then use the output that the filter
+# program writes to standard output. If FILTER_PATTERNS is specified, this tag
+# will be ignored.
+#
+# Note that the filter must not add or remove lines; it is applied before the
+# code is scanned, but not when the output code is generated. If lines are added
+# or removed, the anchors will not be placed correctly.
+
+INPUT_FILTER           =
+
+# The FILTER_PATTERNS tag can be used to specify filters on a per file pattern
+# basis. Doxygen will compare the file name with each pattern and apply the
+# filter if there is a match. The filters are a list of the form: pattern=filter
+# (like *.cpp=my_cpp_filter). See INPUT_FILTER for further information on how
+# filters are used. If the FILTER_PATTERNS tag is empty or if none of the
+# patterns match the file name, INPUT_FILTER is applied.
+
+FILTER_PATTERNS        =
+
+# If the FILTER_SOURCE_FILES tag is set to YES, the input filter (if set using
+# INPUT_FILTER ) will also be used to filter the input files that are used for
+# producing the source files to browse (i.e. when SOURCE_BROWSER is set to YES).
+# The default value is: NO.
+
+FILTER_SOURCE_FILES    = NO
+
+# The FILTER_SOURCE_PATTERNS tag can be used to specify source filters per file
+# pattern. A pattern will override the setting for FILTER_PATTERN (if any) and
+# it is also possible to disable source filtering for a specific pattern using
+# *.ext= (so without naming a filter).
+# This tag requires that the tag FILTER_SOURCE_FILES is set to YES.
+
+FILTER_SOURCE_PATTERNS =
+
+# If the USE_MDFILE_AS_MAINPAGE tag refers to the name of a markdown file that
+# is part of the input, its contents will be placed on the main page
+# (index.html). This can be useful if you have a project on for instance GitHub
+# and want to reuse the introduction page also for the doxygen output.
+
+USE_MDFILE_AS_MAINPAGE =
+
+#---------------------------------------------------------------------------
+# Configuration options related to source browsing
+#---------------------------------------------------------------------------
+
+# If the SOURCE_BROWSER tag is set to YES then a list of source files will be
+# generated. Documented entities will be cross-referenced with these sources.
+#
+# Note: To get rid of all source code in the generated output, make sure that
+# also VERBATIM_HEADERS is set to NO.
+# The default value is: NO.
+
+SOURCE_BROWSER         = NO
+
+# Setting the INLINE_SOURCES tag to YES will include the body of functions,
+# classes and enums directly into the documentation.
+# The default value is: NO.
+
+INLINE_SOURCES         = NO
+
+# Setting the STRIP_CODE_COMMENTS tag to YES will instruct doxygen to hide any
+# special comment blocks from generated source code fragments. Normal C, C++ and
+# Fortran comments will always remain visible.
+# The default value is: YES.
+
+STRIP_CODE_COMMENTS    = YES
+
+# If the REFERENCED_BY_RELATION tag is set to YES then for each documented
+# function all documented functions referencing it will be listed.
+# The default value is: NO.
+
+REFERENCED_BY_RELATION = NO
+
+# If the REFERENCES_RELATION tag is set to YES then for each documented function
+# all documented entities called/used by that function will be listed.
+# The default value is: NO.
+
+REFERENCES_RELATION    = NO
+
+# If the REFERENCES_LINK_SOURCE tag is set to YES and SOURCE_BROWSER tag is set
+# to YES, then the hyperlinks from functions in REFERENCES_RELATION and
+# REFERENCED_BY_RELATION lists will link to the source code. Otherwise they will
+# link to the documentation.
+# The default value is: YES.
+
+REFERENCES_LINK_SOURCE = YES
+
+# If SOURCE_TOOLTIPS is enabled (the default) then hovering a hyperlink in the
+# source code will show a tooltip with additional information such as prototype,
+# brief description and links to the definition and documentation. Since this
+# will make the HTML file larger and loading of large files a bit slower, you
+# can opt to disable this feature.
+# The default value is: YES.
+# This tag requires that the tag SOURCE_BROWSER is set to YES.
+
+SOURCE_TOOLTIPS        = YES
+
+# If the USE_HTAGS tag is set to YES then the references to source code will
+# point to the HTML generated by the htags(1) tool instead of doxygen built-in
+# source browser. The htags tool is part of GNU's global source tagging system
+# (see http://www.gnu.org/software/global/global.html). You will need version
+# 4.8.6 or higher.
+#
+# To use it do the following:
+# - Install the latest version of global
+# - Enable SOURCE_BROWSER and USE_HTAGS in the config file
+# - Make sure the INPUT points to the root of the source tree
+# - Run doxygen as normal
+#
+# Doxygen will invoke htags (and that will in turn invoke gtags), so these
+# tools must be available from the command line (i.e. in the search path).
+#
+# The result: instead of the source browser generated by doxygen, the links to
+# source code will now point to the output of htags.
+# The default value is: NO.
+# This tag requires that the tag SOURCE_BROWSER is set to YES.
+
+USE_HTAGS              = NO
+
+# If the VERBATIM_HEADERS tag is set the YES then doxygen will generate a
+# verbatim copy of the header file for each class for which an include is
+# specified. Set to NO to disable this.
+# See also: Section \class.
+# The default value is: YES.
+
+VERBATIM_HEADERS       = YES
+
+#---------------------------------------------------------------------------
+# Configuration options related to the alphabetical class index
+#---------------------------------------------------------------------------
+
+# If the ALPHABETICAL_INDEX tag is set to YES, an alphabetical index of all
+# compounds will be generated. Enable this if the project contains a lot of
+# classes, structs, unions or interfaces.
+# The default value is: YES.
+
+ALPHABETICAL_INDEX     = YES
+
+# The COLS_IN_ALPHA_INDEX tag can be used to specify the number of columns in
+# which the alphabetical index list will be split.
+# Minimum value: 1, maximum value: 20, default value: 5.
+# This tag requires that the tag ALPHABETICAL_INDEX is set to YES.
+
+COLS_IN_ALPHA_INDEX    = 5
+
+# In case all classes in a project start with a common prefix, all classes will
+# be put under the same header in the alphabetical index. The IGNORE_PREFIX tag
+# can be used to specify a prefix (or a list of prefixes) that should be ignored
+# while generating the index headers.
+# This tag requires that the tag ALPHABETICAL_INDEX is set to YES.
+
+IGNORE_PREFIX          =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the HTML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_HTML tag is set to YES doxygen will generate HTML output
+# The default value is: YES.
+
+GENERATE_HTML          = YES
+
+# The HTML_OUTPUT tag is used to specify where the HTML docs will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: html.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_OUTPUT            = html
+
+# The HTML_FILE_EXTENSION tag can be used to specify the file extension for each
+# generated HTML page (for example: .htm, .php, .asp).
+# The default value is: .html.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_FILE_EXTENSION    = .html
+
+# The HTML_HEADER tag can be used to specify a user-defined HTML header file for
+# each generated HTML page. If the tag is left blank doxygen will generate a
+# standard header.
+#
+# To get valid HTML the header file that includes any scripts and style sheets
+# that doxygen needs, which is dependent on the configuration options used (e.g.
+# the setting GENERATE_TREEVIEW). It is highly recommended to start with a
+# default header using
+# doxygen -w html new_header.html new_footer.html new_stylesheet.css
+# YourConfigFile
+# and then modify the file new_header.html. See also section "Doxygen usage"
+# for information on how to generate the default header that doxygen normally
+# uses.
+# Note: The header is subject to change so you typically have to regenerate the
+# default header when upgrading to a newer version of doxygen. For a description
+# of the possible markers and block names see the documentation.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_HEADER            =
+
+# The HTML_FOOTER tag can be used to specify a user-defined HTML footer for each
+# generated HTML page. If the tag is left blank doxygen will generate a standard
+# footer. See HTML_HEADER for more information on how to generate a default
+# footer and what special commands can be used inside the footer. See also
+# section "Doxygen usage" for information on how to generate the default footer
+# that doxygen normally uses.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_FOOTER            =
+
+# The HTML_STYLESHEET tag can be used to specify a user-defined cascading style
+# sheet that is used by each HTML page. It can be used to fine-tune the look of
+# the HTML output. If left blank doxygen will generate a default style sheet.
+# See also section "Doxygen usage" for information on how to generate the style
+# sheet that doxygen normally uses.
+# Note: It is recommended to use HTML_EXTRA_STYLESHEET instead of this tag, as
+# it is more robust and this tag (HTML_STYLESHEET) will in the future become
+# obsolete.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_STYLESHEET        =
+
+# The HTML_EXTRA_STYLESHEET tag can be used to specify an additional user-
+# defined cascading style sheet that is included after the standard style sheets
+# created by doxygen. Using this option one can overrule certain style aspects.
+# This is preferred over using HTML_STYLESHEET since it does not replace the
+# standard style sheet and is therefor more robust against future updates.
+# Doxygen will copy the style sheet file to the output directory. For an example
+# see the documentation.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_EXTRA_STYLESHEET  =
+
+# The HTML_EXTRA_FILES tag can be used to specify one or more extra images or
+# other source files which should be copied to the HTML output directory. Note
+# that these files will be copied to the base HTML output directory. Use the
+# $relpath^ marker in the HTML_HEADER and/or HTML_FOOTER files to load these
+# files. In the HTML_STYLESHEET file, use the file name only. Also note that the
+# files will be copied as-is; there are no commands or markers available.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_EXTRA_FILES       =
+
+# The HTML_COLORSTYLE_HUE tag controls the color of the HTML output. Doxygen
+# will adjust the colors in the stylesheet and background images according to
+# this color. Hue is specified as an angle on a colorwheel, see
+# http://en.wikipedia.org/wiki/Hue for more information. For instance the value
+# 0 represents red, 60 is yellow, 120 is green, 180 is cyan, 240 is blue, 300
+# purple, and 360 is red again.
+# Minimum value: 0, maximum value: 359, default value: 220.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_COLORSTYLE_HUE    = 220
+
+# The HTML_COLORSTYLE_SAT tag controls the purity (or saturation) of the colors
+# in the HTML output. For a value of 0 the output will use grayscales only. A
+# value of 255 will produce the most vivid colors.
+# Minimum value: 0, maximum value: 255, default value: 100.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_COLORSTYLE_SAT    = 100
+
+# The HTML_COLORSTYLE_GAMMA tag controls the gamma correction applied to the
+# luminance component of the colors in the HTML output. Values below 100
+# gradually make the output lighter, whereas values above 100 make the output
+# darker. The value divided by 100 is the actual gamma applied, so 80 represents
+# a gamma of 0.8, The value 220 represents a gamma of 2.2, and 100 does not
+# change the gamma.
+# Minimum value: 40, maximum value: 240, default value: 80.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_COLORSTYLE_GAMMA  = 80
+
+# If the HTML_TIMESTAMP tag is set to YES then the footer of each generated HTML
+# page will contain the date and time when the page was generated. Setting this
+# to NO can help when comparing the output of multiple runs.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_TIMESTAMP         = YES
+
+# If the HTML_DYNAMIC_SECTIONS tag is set to YES then the generated HTML
+# documentation will contain sections that can be hidden and shown after the
+# page has loaded.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_DYNAMIC_SECTIONS  = NO
+
+# With HTML_INDEX_NUM_ENTRIES one can control the preferred number of entries
+# shown in the various tree structured indices initially; the user can expand
+# and collapse entries dynamically later on. Doxygen will expand the tree to
+# such a level that at most the specified number of entries are visible (unless
+# a fully collapsed tree already exceeds this amount). So setting the number of
+# entries 1 will produce a full collapsed tree by default. 0 is a special value
+# representing an infinite number of entries and will result in a full expanded
+# tree by default.
+# Minimum value: 0, maximum value: 9999, default value: 100.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_INDEX_NUM_ENTRIES = 100
+
+# If the GENERATE_DOCSET tag is set to YES, additional index files will be
+# generated that can be used as input for Apple's Xcode 3 integrated development
+# environment (see: http://developer.apple.com/tools/xcode/), introduced with
+# OSX 10.5 (Leopard). To create a documentation set, doxygen will generate a
+# Makefile in the HTML output directory. Running make will produce the docset in
+# that directory and running make install will install the docset in
+# ~/Library/Developer/Shared/Documentation/DocSets so that Xcode will find it at
+# startup. See http://developer.apple.com/tools/creatingdocsetswithdoxygen.html
+# for more information.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_DOCSET        = NO
+
+# This tag determines the name of the docset feed. A documentation feed provides
+# an umbrella under which multiple documentation sets from a single provider
+# (such as a company or product suite) can be grouped.
+# The default value is: Doxygen generated docs.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_FEEDNAME        = "Doxygen generated docs"
+
+# This tag specifies a string that should uniquely identify the documentation
+# set bundle. This should be a reverse domain-name style string, e.g.
+# com.mycompany.MyDocSet. Doxygen will append .docset to the name.
+# The default value is: org.doxygen.Project.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_BUNDLE_ID       = org.doxygen.Project
+
+# The DOCSET_PUBLISHER_ID tag specifies a string that should uniquely identify
+# the documentation publisher. This should be a reverse domain-name style
+# string, e.g. com.mycompany.MyDocSet.documentation.
+# The default value is: org.doxygen.Publisher.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_PUBLISHER_ID    = org.doxygen.Publisher
+
+# The DOCSET_PUBLISHER_NAME tag identifies the documentation publisher.
+# The default value is: Publisher.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_PUBLISHER_NAME  = Publisher
+
+# If the GENERATE_HTMLHELP tag is set to YES then doxygen generates three
+# additional HTML index files: index.hhp, index.hhc, and index.hhk. The
+# index.hhp is a project file that can be read by Microsoft's HTML Help Workshop
+# (see: http://www.microsoft.com/en-us/download/details.aspx?id=21138) on
+# Windows.
+#
+# The HTML Help Workshop contains a compiler that can convert all HTML output
+# generated by doxygen into a single compiled HTML file (.chm). Compiled HTML
+# files are now used as the Windows 98 help format, and will replace the old
+# Windows help format (.hlp) on all Windows platforms in the future. Compressed
+# HTML files also contain an index, a table of contents, and you can search for
+# words in the documentation. The HTML workshop also contains a viewer for
+# compressed HTML files.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_HTMLHELP      = NO
+
+# The CHM_FILE tag can be used to specify the file name of the resulting .chm
+# file. You can add a path in front of the file if the result should not be
+# written to the html output directory.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+CHM_FILE               =
+
+# The HHC_LOCATION tag can be used to specify the location (absolute path
+# including file name) of the HTML help compiler ( hhc.exe). If non-empty
+# doxygen will try to run the HTML help compiler on the generated index.hhp.
+# The file has to be specified with full path.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+HHC_LOCATION           =
+
+# The GENERATE_CHI flag controls if a separate .chi index file is generated (
+# YES) or that it should be included in the master .chm file ( NO).
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+GENERATE_CHI           = NO
+
+# The CHM_INDEX_ENCODING is used to encode HtmlHelp index ( hhk), content ( hhc)
+# and project file content.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+CHM_INDEX_ENCODING     =
+
+# The BINARY_TOC flag controls whether a binary table of contents is generated (
+# YES) or a normal table of contents ( NO) in the .chm file.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+BINARY_TOC             = NO
+
+# The TOC_EXPAND flag can be set to YES to add extra items for group members to
+# the table of contents of the HTML help documentation and to the tree view.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+TOC_EXPAND             = NO
+
+# If the GENERATE_QHP tag is set to YES and both QHP_NAMESPACE and
+# QHP_VIRTUAL_FOLDER are set, an additional index file will be generated that
+# can be used as input for Qt's qhelpgenerator to generate a Qt Compressed Help
+# (.qch) of the generated HTML documentation.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_QHP           = NO
+
+# If the QHG_LOCATION tag is specified, the QCH_FILE tag can be used to specify
+# the file name of the resulting .qch file. The path specified is relative to
+# the HTML output folder.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QCH_FILE               =
+
+# The QHP_NAMESPACE tag specifies the namespace to use when generating Qt Help
+# Project output. For more information please see Qt Help Project / Namespace
+# (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#namespace).
+# The default value is: org.doxygen.Project.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_NAMESPACE          = org.doxygen.Project
+
+# The QHP_VIRTUAL_FOLDER tag specifies the namespace to use when generating Qt
+# Help Project output. For more information please see Qt Help Project / Virtual
+# Folders (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#virtual-
+# folders).
+# The default value is: doc.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_VIRTUAL_FOLDER     = doc
+
+# If the QHP_CUST_FILTER_NAME tag is set, it specifies the name of a custom
+# filter to add. For more information please see Qt Help Project / Custom
+# Filters (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#custom-
+# filters).
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_CUST_FILTER_NAME   =
+
+# The QHP_CUST_FILTER_ATTRS tag specifies the list of the attributes of the
+# custom filter to add. For more information please see Qt Help Project / Custom
+# Filters (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#custom-
+# filters).
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_CUST_FILTER_ATTRS  =
+
+# The QHP_SECT_FILTER_ATTRS tag specifies the list of the attributes this
+# project's filter section matches. Qt Help Project / Filter Attributes (see:
+# http://qt-project.org/doc/qt-4.8/qthelpproject.html#filter-attributes).
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_SECT_FILTER_ATTRS  =
+
+# The QHG_LOCATION tag can be used to specify the location of Qt's
+# qhelpgenerator. If non-empty doxygen will try to run qhelpgenerator on the
+# generated .qhp file.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHG_LOCATION           =
+
+# If the GENERATE_ECLIPSEHELP tag is set to YES, additional index files will be
+# generated, together with the HTML files, they form an Eclipse help plugin. To
+# install this plugin and make it available under the help contents menu in
+# Eclipse, the contents of the directory containing the HTML and XML files needs
+# to be copied into the plugins directory of eclipse. The name of the directory
+# within the plugins directory should be the same as the ECLIPSE_DOC_ID value.
+# After copying Eclipse needs to be restarted before the help appears.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_ECLIPSEHELP   = NO
+
+# A unique identifier for the Eclipse help plugin. When installing the plugin
+# the directory name containing the HTML and XML files should also have this
+# name. Each documentation set should have its own identifier.
+# The default value is: org.doxygen.Project.
+# This tag requires that the tag GENERATE_ECLIPSEHELP is set to YES.
+
+ECLIPSE_DOC_ID         = org.doxygen.Project
+
+# If you want full control over the layout of the generated HTML pages it might
+# be necessary to disable the index and replace it with your own. The
+# DISABLE_INDEX tag can be used to turn on/off the condensed index (tabs) at top
+# of each HTML page. A value of NO enables the index and the value YES disables
+# it. Since the tabs in the index contain the same information as the navigation
+# tree, you can set this option to YES if you also set GENERATE_TREEVIEW to YES.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+DISABLE_INDEX          = NO
+
+# The GENERATE_TREEVIEW tag is used to specify whether a tree-like index
+# structure should be generated to display hierarchical information. If the tag
+# value is set to YES, a side panel will be generated containing a tree-like
+# index structure (just like the one that is generated for HTML Help). For this
+# to work a browser that supports JavaScript, DHTML, CSS and frames is required
+# (i.e. any modern browser). Windows users are probably better off using the
+# HTML help feature. Via custom stylesheets (see HTML_EXTRA_STYLESHEET) one can
+# further fine-tune the look of the index. As an example, the default style
+# sheet generated by doxygen has an example that shows how to put an image at
+# the root of the tree instead of the PROJECT_NAME. Since the tree basically has
+# the same information as the tab index, you could consider setting
+# DISABLE_INDEX to YES when enabling this option.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_TREEVIEW      = NO
+
+# The ENUM_VALUES_PER_LINE tag can be used to set the number of enum values that
+# doxygen will group on one line in the generated HTML documentation.
+#
+# Note that a value of 0 will completely suppress the enum values from appearing
+# in the overview section.
+# Minimum value: 0, maximum value: 20, default value: 4.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+ENUM_VALUES_PER_LINE   = 4
+
+# If the treeview is enabled (see GENERATE_TREEVIEW) then this tag can be used
+# to set the initial width (in pixels) of the frame in which the tree is shown.
+# Minimum value: 0, maximum value: 1500, default value: 250.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+TREEVIEW_WIDTH         = 250
+
+# When the EXT_LINKS_IN_WINDOW option is set to YES doxygen will open links to
+# external symbols imported via tag files in a separate window.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+EXT_LINKS_IN_WINDOW    = NO
+
+# Use this tag to change the font size of LaTeX formulas included as images in
+# the HTML documentation. When you change the font size after a successful
+# doxygen run you need to manually remove any form_*.png images from the HTML
+# output directory to force them to be regenerated.
+# Minimum value: 8, maximum value: 50, default value: 10.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+FORMULA_FONTSIZE       = 10
+
+# Use the FORMULA_TRANPARENT tag to determine whether or not the images
+# generated for formulas are transparent PNGs. Transparent PNGs are not
+# supported properly for IE 6.0, but are supported on all modern browsers.
+#
+# Note that when changing this option you need to delete any form_*.png files in
+# the HTML output directory before the changes have effect.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+FORMULA_TRANSPARENT    = YES
+
+# Enable the USE_MATHJAX option to render LaTeX formulas using MathJax (see
+# http://www.mathjax.org) which uses client side Javascript for the rendering
+# instead of using prerendered bitmaps. Use this if you do not have LaTeX
+# installed or if you want to formulas look prettier in the HTML output. When
+# enabled you may also need to install MathJax separately and configure the path
+# to it using the MATHJAX_RELPATH option.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+USE_MATHJAX            = NO
+
+# When MathJax is enabled you can set the default output format to be used for
+# the MathJax output. See the MathJax site (see:
+# http://docs.mathjax.org/en/latest/output.html) for more details.
+# Possible values are: HTML-CSS (which is slower, but has the best
+# compatibility), NativeMML (i.e. MathML) and SVG.
+# The default value is: HTML-CSS.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_FORMAT         = HTML-CSS
+
+# When MathJax is enabled you need to specify the location relative to the HTML
+# output directory using the MATHJAX_RELPATH option. The destination directory
+# should contain the MathJax.js script. For instance, if the mathjax directory
+# is located at the same level as the HTML output directory, then
+# MATHJAX_RELPATH should be ../mathjax. The default value points to the MathJax
+# Content Delivery Network so you can quickly see the result without installing
+# MathJax. However, it is strongly recommended to install a local copy of
+# MathJax from http://www.mathjax.org before deployment.
+# The default value is: http://cdn.mathjax.org/mathjax/latest.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_RELPATH        = http://cdn.mathjax.org/mathjax/latest
+
+# The MATHJAX_EXTENSIONS tag can be used to specify one or more MathJax
+# extension names that should be enabled during MathJax rendering. For example
+# MATHJAX_EXTENSIONS = TeX/AMSmath TeX/AMSsymbols
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_EXTENSIONS     =
+
+# The MATHJAX_CODEFILE tag can be used to specify a file with javascript pieces
+# of code that will be used on startup of the MathJax code. See the MathJax site
+# (see: http://docs.mathjax.org/en/latest/output.html) for more details. For an
+# example see the documentation.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_CODEFILE       =
+
+# When the SEARCHENGINE tag is enabled doxygen will generate a search box for
+# the HTML output. The underlying search engine uses javascript and DHTML and
+# should work on any modern browser. Note that when using HTML help
+# (GENERATE_HTMLHELP), Qt help (GENERATE_QHP), or docsets (GENERATE_DOCSET)
+# there is already a search function so this one should typically be disabled.
+# For large projects the javascript based search engine can be slow, then
+# enabling SERVER_BASED_SEARCH may provide a better solution. It is possible to
+# search using the keyboard; to jump to the search box use <access key> + S
+# (what the <access key> is depends on the OS and browser, but it is typically
+# <CTRL>, <ALT>/<option>, or both). Inside the search box use the <cursor down
+# key> to jump into the search results window, the results can be navigated
+# using the <cursor keys>. Press <Enter> to select an item or <escape> to cancel
+# the search. The filter options can be selected when the cursor is inside the
+# search box by pressing <Shift>+<cursor down>. Also here use the <cursor keys>
+# to select a filter and <Enter> or <escape> to activate or cancel the filter
+# option.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+SEARCHENGINE           = NO
+
+# When the SERVER_BASED_SEARCH tag is enabled the search engine will be
+# implemented using a web server instead of a web client using Javascript. There
+# are two flavours of web server based searching depending on the
+# EXTERNAL_SEARCH setting. When disabled, doxygen will generate a PHP script for
+# searching and an index file used by the script. When EXTERNAL_SEARCH is
+# enabled the indexing and searching needs to be provided by external tools. See
+# the section "External Indexing and Searching" for details.
+# The default value is: NO.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+SERVER_BASED_SEARCH    = NO
+
+# When EXTERNAL_SEARCH tag is enabled doxygen will no longer generate the PHP
+# script for searching. Instead the search results are written to an XML file
+# which needs to be processed by an external indexer. Doxygen will invoke an
+# external search engine pointed to by the SEARCHENGINE_URL option to obtain the
+# search results.
+#
+# Doxygen ships with an example indexer ( doxyindexer) and search engine
+# (doxysearch.cgi) which are based on the open source search engine library
+# Xapian (see: http://xapian.org/).
+#
+# See the section "External Indexing and Searching" for details.
+# The default value is: NO.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+EXTERNAL_SEARCH        = NO
+
+# The SEARCHENGINE_URL should point to a search engine hosted by a web server
+# which will return the search results when EXTERNAL_SEARCH is enabled.
+#
+# Doxygen ships with an example indexer ( doxyindexer) and search engine
+# (doxysearch.cgi) which are based on the open source search engine library
+# Xapian (see: http://xapian.org/). See the section "External Indexing and
+# Searching" for details.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+SEARCHENGINE_URL       =
+
+# When SERVER_BASED_SEARCH and EXTERNAL_SEARCH are both enabled the unindexed
+# search data is written to a file for indexing by an external tool. With the
+# SEARCHDATA_FILE tag the name of this file can be specified.
+# The default file is: searchdata.xml.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+SEARCHDATA_FILE        = searchdata.xml
+
+# When SERVER_BASED_SEARCH and EXTERNAL_SEARCH are both enabled the
+# EXTERNAL_SEARCH_ID tag can be used as an identifier for the project. This is
+# useful in combination with EXTRA_SEARCH_MAPPINGS to search through multiple
+# projects and redirect the results back to the right project.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+EXTERNAL_SEARCH_ID     =
+
+# The EXTRA_SEARCH_MAPPINGS tag can be used to enable searching through doxygen
+# projects other than the one defined by this configuration file, but that are
+# all added to the same external search index. Each project needs to have a
+# unique id set via EXTERNAL_SEARCH_ID. The search mapping then maps the id of
+# to a relative location where the documentation can be found. The format is:
+# EXTRA_SEARCH_MAPPINGS = tagname1=loc1 tagname2=loc2 ...
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+EXTRA_SEARCH_MAPPINGS  =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the LaTeX output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_LATEX tag is set to YES doxygen will generate LaTeX output.
+# The default value is: YES.
+
+GENERATE_LATEX         = NO
+
+# The LATEX_OUTPUT tag is used to specify where the LaTeX docs will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: latex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_OUTPUT           = latex
+
+# The LATEX_CMD_NAME tag can be used to specify the LaTeX command name to be
+# invoked.
+#
+# Note that when enabling USE_PDFLATEX this option is only used for generating
+# bitmaps for formulas in the HTML output, but not in the Makefile that is
+# written to the output directory.
+# The default file is: latex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_CMD_NAME         = latex
+
+# The MAKEINDEX_CMD_NAME tag can be used to specify the command name to generate
+# index for LaTeX.
+# The default file is: makeindex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+MAKEINDEX_CMD_NAME     = makeindex
+
+# If the COMPACT_LATEX tag is set to YES doxygen generates more compact LaTeX
+# documents. This may be useful for small projects and may help to save some
+# trees in general.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+COMPACT_LATEX          = NO
+
+# The PAPER_TYPE tag can be used to set the paper type that is used by the
+# printer.
+# Possible values are: a4 (210 x 297 mm), letter (8.5 x 11 inches), legal (8.5 x
+# 14 inches) and executive (7.25 x 10.5 inches).
+# The default value is: a4.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+PAPER_TYPE             = a4
+
+# The EXTRA_PACKAGES tag can be used to specify one or more LaTeX package names
+# that should be included in the LaTeX output. To get the times font for
+# instance you can specify
+# EXTRA_PACKAGES=times
+# If left blank no extra packages will be included.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+EXTRA_PACKAGES         =
+
+# The LATEX_HEADER tag can be used to specify a personal LaTeX header for the
+# generated LaTeX document. The header should contain everything until the first
+# chapter. If it is left blank doxygen will generate a standard header. See
+# section "Doxygen usage" for information on how to let doxygen write the
+# default header to a separate file.
+#
+# Note: Only use a user-defined header if you know what you are doing! The
+# following commands have a special meaning inside the header: $title,
+# $datetime, $date, $doxygenversion, $projectname, $projectnumber. Doxygen will
+# replace them by respectively the title of the page, the current date and time,
+# only the current date, the version number of doxygen, the project name (see
+# PROJECT_NAME), or the project number (see PROJECT_NUMBER).
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_HEADER           =
+
+# The LATEX_FOOTER tag can be used to specify a personal LaTeX footer for the
+# generated LaTeX document. The footer should contain everything after the last
+# chapter. If it is left blank doxygen will generate a standard footer.
+#
+# Note: Only use a user-defined footer if you know what you are doing!
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_FOOTER           =
+
+# The LATEX_EXTRA_FILES tag can be used to specify one or more extra images or
+# other source files which should be copied to the LATEX_OUTPUT output
+# directory. Note that the files will be copied as-is; there are no commands or
+# markers available.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_EXTRA_FILES      =
+
+# If the PDF_HYPERLINKS tag is set to YES, the LaTeX that is generated is
+# prepared for conversion to PDF (using ps2pdf or pdflatex). The PDF file will
+# contain links (just like the HTML output) instead of page references. This
+# makes the output suitable for online browsing using a PDF viewer.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+PDF_HYPERLINKS         = YES
+
+# If the LATEX_PDFLATEX tag is set to YES, doxygen will use pdflatex to generate
+# the PDF file directly from the LaTeX files. Set this option to YES to get a
+# higher quality PDF documentation.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+USE_PDFLATEX           = YES
+
+# If the LATEX_BATCHMODE tag is set to YES, doxygen will add the \batchmode
+# command to the generated LaTeX files. This will instruct LaTeX to keep running
+# if errors occur, instead of asking the user for help. This option is also used
+# when generating formulas in HTML.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_BATCHMODE        = NO
+
+# If the LATEX_HIDE_INDICES tag is set to YES then doxygen will not include the
+# index chapters (such as File Index, Compound Index, etc.) in the output.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_HIDE_INDICES     = NO
+
+# If the LATEX_SOURCE_CODE tag is set to YES then doxygen will include source
+# code with syntax highlighting in the LaTeX output.
+#
+# Note that which sources are shown also depends on other settings such as
+# SOURCE_BROWSER.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_SOURCE_CODE      = NO
+
+# The LATEX_BIB_STYLE tag can be used to specify the style to use for the
+# bibliography, e.g. plainnat, or ieeetr. See
+# http://en.wikipedia.org/wiki/BibTeX and \cite for more info.
+# The default value is: plain.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_BIB_STYLE        = plain
+
+#---------------------------------------------------------------------------
+# Configuration options related to the RTF output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_RTF tag is set to YES doxygen will generate RTF output. The
+# RTF output is optimized for Word 97 and may not look too pretty with other RTF
+# readers/editors.
+# The default value is: NO.
+
+GENERATE_RTF           = NO
+
+# The RTF_OUTPUT tag is used to specify where the RTF docs will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: rtf.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_OUTPUT             = rtf
+
+# If the COMPACT_RTF tag is set to YES doxygen generates more compact RTF
+# documents. This may be useful for small projects and may help to save some
+# trees in general.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+COMPACT_RTF            = NO
+
+# If the RTF_HYPERLINKS tag is set to YES, the RTF that is generated will
+# contain hyperlink fields. The RTF file will contain links (just like the HTML
+# output) instead of page references. This makes the output suitable for online
+# browsing using Word or some other Word compatible readers that support those
+# fields.
+#
+# Note: WordPad (write) and others do not support links.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_HYPERLINKS         = NO
+
+# Load stylesheet definitions from file. Syntax is similar to doxygen's config
+# file, i.e. a series of assignments. You only have to provide replacements,
+# missing definitions are set to their default value.
+#
+# See also section "Doxygen usage" for information on how to generate the
+# default style sheet that doxygen normally uses.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_STYLESHEET_FILE    =
+
+# Set optional variables used in the generation of an RTF document. Syntax is
+# similar to doxygen's config file. A template extensions file can be generated
+# using doxygen -e rtf extensionFile.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_EXTENSIONS_FILE    =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the man page output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_MAN tag is set to YES doxygen will generate man pages for
+# classes and files.
+# The default value is: NO.
+
+GENERATE_MAN           = NO
+
+# The MAN_OUTPUT tag is used to specify where the man pages will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it. A directory man3 will be created inside the directory specified by
+# MAN_OUTPUT.
+# The default directory is: man.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_OUTPUT             = man
+
+# The MAN_EXTENSION tag determines the extension that is added to the generated
+# man pages. In case the manual section does not start with a number, the number
+# 3 is prepended. The dot (.) at the beginning of the MAN_EXTENSION tag is
+# optional.
+# The default value is: .3.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_EXTENSION          = .3
+
+# If the MAN_LINKS tag is set to YES and doxygen generates man output, then it
+# will generate one additional man file for each entity documented in the real
+# man page(s). These additional files only source the real man page, but without
+# them the man command would be unable to find the correct page.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_LINKS              = NO
+
+#---------------------------------------------------------------------------
+# Configuration options related to the XML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_XML tag is set to YES doxygen will generate an XML file that
+# captures the structure of the code including all documentation.
+# The default value is: NO.
+
+GENERATE_XML           = NO
+
+# The XML_OUTPUT tag is used to specify where the XML pages will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: xml.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_OUTPUT             = xml
+
+# The XML_SCHEMA tag can be used to specify a XML schema, which can be used by a
+# validating XML parser to check the syntax of the XML files.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_SCHEMA             =
+
+# The XML_DTD tag can be used to specify a XML DTD, which can be used by a
+# validating XML parser to check the syntax of the XML files.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_DTD                =
+
+# If the XML_PROGRAMLISTING tag is set to YES doxygen will dump the program
+# listings (including syntax highlighting and cross-referencing information) to
+# the XML output. Note that enabling this will significantly increase the size
+# of the XML output.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_PROGRAMLISTING     = YES
+
+#---------------------------------------------------------------------------
+# Configuration options related to the DOCBOOK output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_DOCBOOK tag is set to YES doxygen will generate Docbook files
+# that can be used to generate PDF.
+# The default value is: NO.
+
+GENERATE_DOCBOOK       = NO
+
+# The DOCBOOK_OUTPUT tag is used to specify where the Docbook pages will be put.
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be put in
+# front of it.
+# The default directory is: docbook.
+# This tag requires that the tag GENERATE_DOCBOOK is set to YES.
+
+DOCBOOK_OUTPUT         = docbook
+
+#---------------------------------------------------------------------------
+# Configuration options for the AutoGen Definitions output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_AUTOGEN_DEF tag is set to YES doxygen will generate an AutoGen
+# Definitions (see http://autogen.sf.net) file that captures the structure of
+# the code including all documentation. Note that this feature is still
+# experimental and incomplete at the moment.
+# The default value is: NO.
+
+GENERATE_AUTOGEN_DEF   = NO
+
+#---------------------------------------------------------------------------
+# Configuration options related to the Perl module output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_PERLMOD tag is set to YES doxygen will generate a Perl module
+# file that captures the structure of the code including all documentation.
+#
+# Note that this feature is still experimental and incomplete at the moment.
+# The default value is: NO.
+
+GENERATE_PERLMOD       = NO
+
+# If the PERLMOD_LATEX tag is set to YES doxygen will generate the necessary
+# Makefile rules, Perl scripts and LaTeX code to be able to generate PDF and DVI
+# output from the Perl module output.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_PERLMOD is set to YES.
+
+PERLMOD_LATEX          = NO
+
+# If the PERLMOD_PRETTY tag is set to YES the Perl module output will be nicely
+# formatted so it can be parsed by a human reader. This is useful if you want to
+# understand what is going on. On the other hand, if this tag is set to NO the
+# size of the Perl module output will be much smaller and Perl will parse it
+# just the same.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_PERLMOD is set to YES.
+
+PERLMOD_PRETTY         = YES
+
+# The names of the make variables in the generated doxyrules.make file are
+# prefixed with the string contained in PERLMOD_MAKEVAR_PREFIX. This is useful
+# so different doxyrules.make files included by the same Makefile don't
+# overwrite each other's variables.
+# This tag requires that the tag GENERATE_PERLMOD is set to YES.
+
+PERLMOD_MAKEVAR_PREFIX =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the preprocessor
+#---------------------------------------------------------------------------
+
+# If the ENABLE_PREPROCESSING tag is set to YES doxygen will evaluate all
+# C-preprocessor directives found in the sources and include files.
+# The default value is: YES.
+
+ENABLE_PREPROCESSING   = YES
+
+# If the MACRO_EXPANSION tag is set to YES doxygen will expand all macro names
+# in the source code. If set to NO only conditional compilation will be
+# performed. Macro expansion can be done in a controlled way by setting
+# EXPAND_ONLY_PREDEF to YES.
+# The default value is: NO.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+MACRO_EXPANSION        = NO
+
+# If the EXPAND_ONLY_PREDEF and MACRO_EXPANSION tags are both set to YES then
+# the macro expansion is limited to the macros specified with the PREDEFINED and
+# EXPAND_AS_DEFINED tags.
+# The default value is: NO.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+EXPAND_ONLY_PREDEF     = NO
+
+# If the SEARCH_INCLUDES tag is set to YES the includes files in the
+# INCLUDE_PATH will be searched if a #include is found.
+# The default value is: YES.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+SEARCH_INCLUDES        = YES
+
+# The INCLUDE_PATH tag can be used to specify one or more directories that
+# contain include files that are not input files but should be processed by the
+# preprocessor.
+# This tag requires that the tag SEARCH_INCLUDES is set to YES.
+
+INCLUDE_PATH           =
+
+# You can use the INCLUDE_FILE_PATTERNS tag to specify one or more wildcard
+# patterns (like *.h and *.hpp) to filter out the header-files in the
+# directories. If left blank, the patterns specified with FILE_PATTERNS will be
+# used.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+INCLUDE_FILE_PATTERNS  =
+
+# The PREDEFINED tag can be used to specify one or more macro names that are
+# defined before the preprocessor is started (similar to the -D option of e.g.
+# gcc). The argument of the tag is a list of macros of the form: name or
+# name=definition (no spaces). If the definition and the "=" are omitted, "=1"
+# is assumed. To prevent a macro definition from being undefined via #undef or
+# recursively expanded use the := operator instead of the = operator.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+PREDEFINED             =
+
+# If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then this
+# tag can be used to specify a list of macro names that should be expanded. The
+# macro definition that is found in the sources will be used. Use the PREDEFINED
+# tag if you want to use a different macro definition that overrules the
+# definition found in the source code.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+EXPAND_AS_DEFINED      =
+
+# If the SKIP_FUNCTION_MACROS tag is set to YES then doxygen's preprocessor will
+# remove all refrences to function-like macros that are alone on a line, have an
+# all uppercase name, and do not end with a semicolon. Such function macros are
+# typically used for boiler-plate code, and will confuse the parser if not
+# removed.
+# The default value is: YES.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+SKIP_FUNCTION_MACROS   = YES
+
+#---------------------------------------------------------------------------
+# Configuration options related to external references
+#---------------------------------------------------------------------------
+
+# The TAGFILES tag can be used to specify one or more tag files. For each tag
+# file the location of the external documentation should be added. The format of
+# a tag file without this location is as follows:
+# TAGFILES = file1 file2 ...
+# Adding location for the tag files is done as follows:
+# TAGFILES = file1=loc1 "file2 = loc2" ...
+# where loc1 and loc2 can be relative or absolute paths or URLs. See the
+# section "Linking to external documentation" for more information about the use
+# of tag files.
+# Note: Each tag file must have an unique name (where the name does NOT include
+# the path). If a tag file is not located in the directory in which doxygen is
+# run, you must also specify the path to the tagfile here.
+
+TAGFILES               =
+
+# When a file name is specified after GENERATE_TAGFILE, doxygen will create a
+# tag file that is based on the input files it reads. See section "Linking to
+# external documentation" for more information about the usage of tag files.
+
+GENERATE_TAGFILE       =
+
+# If the ALLEXTERNALS tag is set to YES all external class will be listed in the
+# class index. If set to NO only the inherited external classes will be listed.
+# The default value is: NO.
+
+ALLEXTERNALS           = NO
+
+# If the EXTERNAL_GROUPS tag is set to YES all external groups will be listed in
+# the modules index. If set to NO, only the current project's groups will be
+# listed.
+# The default value is: YES.
+
+EXTERNAL_GROUPS        = YES
+
+# If the EXTERNAL_PAGES tag is set to YES all external pages will be listed in
+# the related pages index. If set to NO, only the current project's pages will
+# be listed.
+# The default value is: YES.
+
+EXTERNAL_PAGES         = YES
+
+# The PERL_PATH should be the absolute path and name of the perl script
+# interpreter (i.e. the result of 'which perl').
+# The default file (with absolute path) is: /usr/bin/perl.
+
+PERL_PATH              = /usr/bin/perl
+
+#---------------------------------------------------------------------------
+# Configuration options related to the dot tool
+#---------------------------------------------------------------------------
+
+# If the CLASS_DIAGRAMS tag is set to YES doxygen will generate a class diagram
+# (in HTML and LaTeX) for classes with base or super classes. Setting the tag to
+# NO turns the diagrams off. Note that this option also works with HAVE_DOT
+# disabled, but it is recommended to install and use dot, since it yields more
+# powerful graphs.
+# The default value is: YES.
+
+CLASS_DIAGRAMS         = YES
+
+# You can define message sequence charts within doxygen comments using the \msc
+# command. Doxygen will then run the mscgen tool (see:
+# http://www.mcternan.me.uk/mscgen/)) to produce the chart and insert it in the
+# documentation. The MSCGEN_PATH tag allows you to specify the directory where
+# the mscgen tool resides. If left empty the tool is assumed to be found in the
+# default search path.
+
+MSCGEN_PATH            =
+
+# You can include diagrams made with dia in doxygen documentation. Doxygen will
+# then run dia to produce the diagram and insert it in the documentation. The
+# DIA_PATH tag allows you to specify the directory where the dia binary resides.
+# If left empty dia is assumed to be found in the default search path.
+
+DIA_PATH               =
+
+# If set to YES, the inheritance and collaboration graphs will hide inheritance
+# and usage relations if the target is undocumented or is not a class.
+# The default value is: YES.
+
+HIDE_UNDOC_RELATIONS   = YES
+
+# If you set the HAVE_DOT tag to YES then doxygen will assume the dot tool is
+# available from the path. This tool is part of Graphviz (see:
+# http://www.graphviz.org/), a graph visualization toolkit from AT&T and Lucent
+# Bell Labs. The other options in this section have no effect if this option is
+# set to NO
+# The default value is: NO.
+
+HAVE_DOT               = NO
+
+# The DOT_NUM_THREADS specifies the number of dot invocations doxygen is allowed
+# to run in parallel. When set to 0 doxygen will base this on the number of
+# processors available in the system. You can set it explicitly to a value
+# larger than 0 to get control over the balance between CPU load and processing
+# speed.
+# Minimum value: 0, maximum value: 32, default value: 0.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_NUM_THREADS        = 0
+
+# When you want a differently looking font n the dot files that doxygen
+# generates you can specify the font name using DOT_FONTNAME. You need to make
+# sure dot is able to find the font, which can be done by putting it in a
+# standard location or by setting the DOTFONTPATH environment variable or by
+# setting DOT_FONTPATH to the directory containing the font.
+# The default value is: Helvetica.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_FONTNAME           = Helvetica
+
+# The DOT_FONTSIZE tag can be used to set the size (in points) of the font of
+# dot graphs.
+# Minimum value: 4, maximum value: 24, default value: 10.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_FONTSIZE           = 10
+
+# By default doxygen will tell dot to use the default font as specified with
+# DOT_FONTNAME. If you specify a different font using DOT_FONTNAME you can set
+# the path where dot can find it using this tag.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_FONTPATH           =
+
+# If the CLASS_GRAPH tag is set to YES then doxygen will generate a graph for
+# each documented class showing the direct and indirect inheritance relations.
+# Setting this tag to YES will force the CLASS_DIAGRAMS tag to NO.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+CLASS_GRAPH            = YES
+
+# If the COLLABORATION_GRAPH tag is set to YES then doxygen will generate a
+# graph for each documented class showing the direct and indirect implementation
+# dependencies (inheritance, containment, and class references variables) of the
+# class with other documented classes.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+COLLABORATION_GRAPH    = YES
+
+# If the GROUP_GRAPHS tag is set to YES then doxygen will generate a graph for
+# groups, showing the direct groups dependencies.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+GROUP_GRAPHS           = YES
+
+# If the UML_LOOK tag is set to YES doxygen will generate inheritance and
+# collaboration diagrams in a style similar to the OMG's Unified Modeling
+# Language.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+UML_LOOK               = NO
+
+# If the UML_LOOK tag is enabled, the fields and methods are shown inside the
+# class node. If there are many fields or methods and many nodes the graph may
+# become too big to be useful. The UML_LIMIT_NUM_FIELDS threshold limits the
+# number of items for each type to make the size more manageable. Set this to 0
+# for no limit. Note that the threshold may be exceeded by 50% before the limit
+# is enforced. So when you set the threshold to 10, up to 15 fields may appear,
+# but if the number exceeds 15, the total amount of fields shown is limited to
+# 10.
+# Minimum value: 0, maximum value: 100, default value: 10.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+UML_LIMIT_NUM_FIELDS   = 10
+
+# If the TEMPLATE_RELATIONS tag is set to YES then the inheritance and
+# collaboration graphs will show the relations between templates and their
+# instances.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+TEMPLATE_RELATIONS     = NO
+
+# If the INCLUDE_GRAPH, ENABLE_PREPROCESSING and SEARCH_INCLUDES tags are set to
+# YES then doxygen will generate a graph for each documented file showing the
+# direct and indirect include dependencies of the file with other documented
+# files.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+INCLUDE_GRAPH          = YES
+
+# If the INCLUDED_BY_GRAPH, ENABLE_PREPROCESSING and SEARCH_INCLUDES tags are
+# set to YES then doxygen will generate a graph for each documented file showing
+# the direct and indirect include dependencies of the file with other documented
+# files.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+INCLUDED_BY_GRAPH      = YES
+
+# If the CALL_GRAPH tag is set to YES then doxygen will generate a call
+# dependency graph for every global function or class method.
+#
+# Note that enabling this option will significantly increase the time of a run.
+# So in most cases it will be better to enable call graphs for selected
+# functions only using the \callgraph command.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+CALL_GRAPH             = NO
+
+# If the CALLER_GRAPH tag is set to YES then doxygen will generate a caller
+# dependency graph for every global function or class method.
+#
+# Note that enabling this option will significantly increase the time of a run.
+# So in most cases it will be better to enable caller graphs for selected
+# functions only using the \callergraph command.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+CALLER_GRAPH           = NO
+
+# If the GRAPHICAL_HIERARCHY tag is set to YES then doxygen will graphical
+# hierarchy of all classes instead of a textual one.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+GRAPHICAL_HIERARCHY    = YES
+
+# If the DIRECTORY_GRAPH tag is set to YES then doxygen will show the
+# dependencies a directory has on other directories in a graphical way. The
+# dependency relations are determined by the #include relations between the
+# files in the directories.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DIRECTORY_GRAPH        = YES
+
+# The DOT_IMAGE_FORMAT tag can be used to set the image format of the images
+# generated by dot.
+# Note: If you choose svg you need to set HTML_FILE_EXTENSION to xhtml in order
+# to make the SVG files visible in IE 9+ (other browsers do not have this
+# requirement).
+# Possible values are: png, jpg, gif and svg.
+# The default value is: png.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_IMAGE_FORMAT       = png
+
+# If DOT_IMAGE_FORMAT is set to svg, then this option can be set to YES to
+# enable generation of interactive SVG images that allow zooming and panning.
+#
+# Note that this requires a modern browser other than Internet Explorer. Tested
+# and working are Firefox, Chrome, Safari, and Opera.
+# Note: For IE 9+ you need to set HTML_FILE_EXTENSION to xhtml in order to make
+# the SVG files visible. Older versions of IE do not have SVG support.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+INTERACTIVE_SVG        = NO
+
+# The DOT_PATH tag can be used to specify the path where the dot tool can be
+# found. If left blank, it is assumed the dot tool can be found in the path.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_PATH               =
+
+# The DOTFILE_DIRS tag can be used to specify one or more directories that
+# contain dot files that are included in the documentation (see the \dotfile
+# command).
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOTFILE_DIRS           =
+
+# The MSCFILE_DIRS tag can be used to specify one or more directories that
+# contain msc files that are included in the documentation (see the \mscfile
+# command).
+
+MSCFILE_DIRS           =
+
+# The DIAFILE_DIRS tag can be used to specify one or more directories that
+# contain dia files that are included in the documentation (see the \diafile
+# command).
+
+DIAFILE_DIRS           =
+
+# The DOT_GRAPH_MAX_NODES tag can be used to set the maximum number of nodes
+# that will be shown in the graph. If the number of nodes in a graph becomes
+# larger than this value, doxygen will truncate the graph, which is visualized
+# by representing a node as a red box. Note that doxygen if the number of direct
+# children of the root node in a graph is already larger than
+# DOT_GRAPH_MAX_NODES then the graph will not be shown at all. Also note that
+# the size of a graph can be further restricted by MAX_DOT_GRAPH_DEPTH.
+# Minimum value: 0, maximum value: 10000, default value: 50.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_GRAPH_MAX_NODES    = 50
+
+# The MAX_DOT_GRAPH_DEPTH tag can be used to set the maximum depth of the graphs
+# generated by dot. A depth value of 3 means that only nodes reachable from the
+# root by following a path via at most 3 edges will be shown. Nodes that lay
+# further from the root node will be omitted. Note that setting this option to 1
+# or 2 may greatly reduce the computation time needed for large code bases. Also
+# note that the size of a graph can be further restricted by
+# DOT_GRAPH_MAX_NODES. Using a depth of 0 means no depth restriction.
+# Minimum value: 0, maximum value: 1000, default value: 0.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+MAX_DOT_GRAPH_DEPTH    = 0
+
+# Set the DOT_TRANSPARENT tag to YES to generate images with a transparent
+# background. This is disabled by default, because dot on Windows does not seem
+# to support this out of the box.
+#
+# Warning: Depending on the platform used, enabling this option may lead to
+# badly anti-aliased labels on the edges of a graph (i.e. they become hard to
+# read).
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_TRANSPARENT        = NO
+
+# Set the DOT_MULTI_TARGETS tag to YES allow dot to generate multiple output
+# files in one run (i.e. multiple -o and -T options on the command line). This
+# makes dot run faster, but since only newer versions of dot (>1.8.10) support
+# this, this feature is disabled by default.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_MULTI_TARGETS      = YES
+
+# If the GENERATE_LEGEND tag is set to YES doxygen will generate a legend page
+# explaining the meaning of the various boxes and arrows in the dot generated
+# graphs.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+GENERATE_LEGEND        = YES
+
+# If the DOT_CLEANUP tag is set to YES doxygen will remove the intermediate dot
+# files that are used to generate the various graphs.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_CLEANUP            = YES
diff --git a/media/libaaudio/Doxyfile.orig b/media/libaaudio/Doxyfile.orig
new file mode 100644
index 0000000..137facb
--- /dev/null
+++ b/media/libaaudio/Doxyfile.orig
@@ -0,0 +1,2303 @@
+# Doxyfile 1.8.6
+
+# This file describes the settings to be used by the documentation system
+# doxygen (www.doxygen.org) for a project.
+#
+# All text after a double hash (##) is considered a comment and is placed in
+# front of the TAG it is preceding.
+#
+# All text after a single hash (#) is considered a comment and will be ignored.
+# The format is:
+# TAG = value [value, ...]
+# For lists, items can also be appended using:
+# TAG += value [value, ...]
+# Values that contain spaces should be placed between quotes (\" \").
+
+#---------------------------------------------------------------------------
+# Project related configuration options
+#---------------------------------------------------------------------------
+
+# This tag specifies the encoding used for all characters in the config file
+# that follow. The default is UTF-8 which is also the encoding used for all text
+# before the first occurrence of this tag. Doxygen uses libiconv (or the iconv
+# built into libc) for the transcoding. See http://www.gnu.org/software/libiconv
+# for the list of possible encodings.
+# The default value is: UTF-8.
+
+DOXYFILE_ENCODING      = UTF-8
+
+# The PROJECT_NAME tag is a single word (or a sequence of words surrounded by
+# double-quotes, unless you are using Doxywizard) that should identify the
+# project for which the documentation is generated. This name is used in the
+# title of most generated pages and in a few other places.
+# The default value is: My Project.
+
+PROJECT_NAME           = "My Project"
+
+# The PROJECT_NUMBER tag can be used to enter a project or revision number. This
+# could be handy for archiving the generated documentation or if some version
+# control system is used.
+
+PROJECT_NUMBER         =
+
+# Using the PROJECT_BRIEF tag one can provide an optional one line description
+# for a project that appears at the top of each page and should give viewer a
+# quick idea about the purpose of the project. Keep the description short.
+
+PROJECT_BRIEF          =
+
+# With the PROJECT_LOGO tag one can specify an logo or icon that is included in
+# the documentation. The maximum height of the logo should not exceed 55 pixels
+# and the maximum width should not exceed 200 pixels. Doxygen will copy the logo
+# to the output directory.
+
+PROJECT_LOGO           =
+
+# The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute) path
+# into which the generated documentation will be written. If a relative path is
+# entered, it will be relative to the location where doxygen was started. If
+# left blank the current directory will be used.
+
+OUTPUT_DIRECTORY       =
+
+# If the CREATE_SUBDIRS tag is set to YES, then doxygen will create 4096 sub-
+# directories (in 2 levels) under the output directory of each output format and
+# will distribute the generated files over these directories. Enabling this
+# option can be useful when feeding doxygen a huge amount of source files, where
+# putting all generated files in the same directory would otherwise causes
+# performance problems for the file system.
+# The default value is: NO.
+
+CREATE_SUBDIRS         = NO
+
+# The OUTPUT_LANGUAGE tag is used to specify the language in which all
+# documentation generated by doxygen is written. Doxygen will use this
+# information to generate all constant output in the proper language.
+# Possible values are: Afrikaans, Arabic, Armenian, Brazilian, Catalan, Chinese,
+# Chinese-Traditional, Croatian, Czech, Danish, Dutch, English (United States),
+# Esperanto, Farsi (Persian), Finnish, French, German, Greek, Hungarian,
+# Indonesian, Italian, Japanese, Japanese-en (Japanese with English messages),
+# Korean, Korean-en (Korean with English messages), Latvian, Lithuanian,
+# Macedonian, Norwegian, Persian (Farsi), Polish, Portuguese, Romanian, Russian,
+# Serbian, Serbian-Cyrillic, Slovak, Slovene, Spanish, Swedish, Turkish,
+# Ukrainian and Vietnamese.
+# The default value is: English.
+
+OUTPUT_LANGUAGE        = English
+
+# If the BRIEF_MEMBER_DESC tag is set to YES doxygen will include brief member
+# descriptions after the members that are listed in the file and class
+# documentation (similar to Javadoc). Set to NO to disable this.
+# The default value is: YES.
+
+BRIEF_MEMBER_DESC      = YES
+
+# If the REPEAT_BRIEF tag is set to YES doxygen will prepend the brief
+# description of a member or function before the detailed description
+#
+# Note: If both HIDE_UNDOC_MEMBERS and BRIEF_MEMBER_DESC are set to NO, the
+# brief descriptions will be completely suppressed.
+# The default value is: YES.
+
+REPEAT_BRIEF           = YES
+
+# This tag implements a quasi-intelligent brief description abbreviator that is
+# used to form the text in various listings. Each string in this list, if found
+# as the leading text of the brief description, will be stripped from the text
+# and the result, after processing the whole list, is used as the annotated
+# text. Otherwise, the brief description is used as-is. If left blank, the
+# following values are used ($name is automatically replaced with the name of
+# the entity):The $name class, The $name widget, The $name file, is, provides,
+# specifies, contains, represents, a, an and the.
+
+ABBREVIATE_BRIEF       =
+
+# If the ALWAYS_DETAILED_SEC and REPEAT_BRIEF tags are both set to YES then
+# doxygen will generate a detailed section even if there is only a brief
+# description.
+# The default value is: NO.
+
+ALWAYS_DETAILED_SEC    = NO
+
+# If the INLINE_INHERITED_MEMB tag is set to YES, doxygen will show all
+# inherited members of a class in the documentation of that class as if those
+# members were ordinary class members. Constructors, destructors and assignment
+# operators of the base classes will not be shown.
+# The default value is: NO.
+
+INLINE_INHERITED_MEMB  = NO
+
+# If the FULL_PATH_NAMES tag is set to YES doxygen will prepend the full path
+# before files name in the file list and in the header files. If set to NO the
+# shortest path that makes the file name unique will be used
+# The default value is: YES.
+
+FULL_PATH_NAMES        = YES
+
+# The STRIP_FROM_PATH tag can be used to strip a user-defined part of the path.
+# Stripping is only done if one of the specified strings matches the left-hand
+# part of the path. The tag can be used to show relative paths in the file list.
+# If left blank the directory from which doxygen is run is used as the path to
+# strip.
+#
+# Note that you can specify absolute paths here, but also relative paths, which
+# will be relative from the directory where doxygen is started.
+# This tag requires that the tag FULL_PATH_NAMES is set to YES.
+
+STRIP_FROM_PATH        =
+
+# The STRIP_FROM_INC_PATH tag can be used to strip a user-defined part of the
+# path mentioned in the documentation of a class, which tells the reader which
+# header file to include in order to use a class. If left blank only the name of
+# the header file containing the class definition is used. Otherwise one should
+# specify the list of include paths that are normally passed to the compiler
+# using the -I flag.
+
+STRIP_FROM_INC_PATH    =
+
+# If the SHORT_NAMES tag is set to YES, doxygen will generate much shorter (but
+# less readable) file names. This can be useful is your file systems doesn't
+# support long names like on DOS, Mac, or CD-ROM.
+# The default value is: NO.
+
+SHORT_NAMES            = NO
+
+# If the JAVADOC_AUTOBRIEF tag is set to YES then doxygen will interpret the
+# first line (until the first dot) of a Javadoc-style comment as the brief
+# description. If set to NO, the Javadoc-style will behave just like regular Qt-
+# style comments (thus requiring an explicit @brief command for a brief
+# description.)
+# The default value is: NO.
+
+JAVADOC_AUTOBRIEF      = NO
+
+# If the QT_AUTOBRIEF tag is set to YES then doxygen will interpret the first
+# line (until the first dot) of a Qt-style comment as the brief description. If
+# set to NO, the Qt-style will behave just like regular Qt-style comments (thus
+# requiring an explicit \brief command for a brief description.)
+# The default value is: NO.
+
+QT_AUTOBRIEF           = NO
+
+# The MULTILINE_CPP_IS_BRIEF tag can be set to YES to make doxygen treat a
+# multi-line C++ special comment block (i.e. a block of //! or /// comments) as
+# a brief description. This used to be the default behavior. The new default is
+# to treat a multi-line C++ comment block as a detailed description. Set this
+# tag to YES if you prefer the old behavior instead.
+#
+# Note that setting this tag to YES also means that rational rose comments are
+# not recognized any more.
+# The default value is: NO.
+
+MULTILINE_CPP_IS_BRIEF = NO
+
+# If the INHERIT_DOCS tag is set to YES then an undocumented member inherits the
+# documentation from any documented member that it re-implements.
+# The default value is: YES.
+
+INHERIT_DOCS           = YES
+
+# If the SEPARATE_MEMBER_PAGES tag is set to YES, then doxygen will produce a
+# new page for each member. If set to NO, the documentation of a member will be
+# part of the file/class/namespace that contains it.
+# The default value is: NO.
+
+SEPARATE_MEMBER_PAGES  = NO
+
+# The TAB_SIZE tag can be used to set the number of spaces in a tab. Doxygen
+# uses this value to replace tabs by spaces in code fragments.
+# Minimum value: 1, maximum value: 16, default value: 4.
+
+TAB_SIZE               = 4
+
+# This tag can be used to specify a number of aliases that act as commands in
+# the documentation. An alias has the form:
+# name=value
+# For example adding
+# "sideeffect=@par Side Effects:\n"
+# will allow you to put the command \sideeffect (or @sideeffect) in the
+# documentation, which will result in a user-defined paragraph with heading
+# "Side Effects:". You can put \n's in the value part of an alias to insert
+# newlines.
+
+ALIASES                =
+
+# This tag can be used to specify a number of word-keyword mappings (TCL only).
+# A mapping has the form "name=value". For example adding "class=itcl::class"
+# will allow you to use the command class in the itcl::class meaning.
+
+TCL_SUBST              =
+
+# Set the OPTIMIZE_OUTPUT_FOR_C tag to YES if your project consists of C sources
+# only. Doxygen will then generate output that is more tailored for C. For
+# instance, some of the names that are used will be different. The list of all
+# members will be omitted, etc.
+# The default value is: NO.
+
+OPTIMIZE_OUTPUT_FOR_C  = NO
+
+# Set the OPTIMIZE_OUTPUT_JAVA tag to YES if your project consists of Java or
+# Python sources only. Doxygen will then generate output that is more tailored
+# for that language. For instance, namespaces will be presented as packages,
+# qualified scopes will look different, etc.
+# The default value is: NO.
+
+OPTIMIZE_OUTPUT_JAVA   = NO
+
+# Set the OPTIMIZE_FOR_FORTRAN tag to YES if your project consists of Fortran
+# sources. Doxygen will then generate output that is tailored for Fortran.
+# The default value is: NO.
+
+OPTIMIZE_FOR_FORTRAN   = NO
+
+# Set the OPTIMIZE_OUTPUT_VHDL tag to YES if your project consists of VHDL
+# sources. Doxygen will then generate output that is tailored for VHDL.
+# The default value is: NO.
+
+OPTIMIZE_OUTPUT_VHDL   = NO
+
+# Doxygen selects the parser to use depending on the extension of the files it
+# parses. With this tag you can assign which parser to use for a given
+# extension. Doxygen has a built-in mapping, but you can override or extend it
+# using this tag. The format is ext=language, where ext is a file extension, and
+# language is one of the parsers supported by doxygen: IDL, Java, Javascript,
+# C#, C, C++, D, PHP, Objective-C, Python, Fortran, VHDL. For instance to make
+# doxygen treat .inc files as Fortran files (default is PHP), and .f files as C
+# (default is Fortran), use: inc=Fortran f=C.
+#
+# Note For files without extension you can use no_extension as a placeholder.
+#
+# Note that for custom extensions you also need to set FILE_PATTERNS otherwise
+# the files are not read by doxygen.
+
+EXTENSION_MAPPING      =
+
+# If the MARKDOWN_SUPPORT tag is enabled then doxygen pre-processes all comments
+# according to the Markdown format, which allows for more readable
+# documentation. See http://daringfireball.net/projects/markdown/ for details.
+# The output of markdown processing is further processed by doxygen, so you can
+# mix doxygen, HTML, and XML commands with Markdown formatting. Disable only in
+# case of backward compatibilities issues.
+# The default value is: YES.
+
+MARKDOWN_SUPPORT       = YES
+
+# When enabled doxygen tries to link words that correspond to documented
+# classes, or namespaces to their corresponding documentation. Such a link can
+# be prevented in individual cases by by putting a % sign in front of the word
+# or globally by setting AUTOLINK_SUPPORT to NO.
+# The default value is: YES.
+
+AUTOLINK_SUPPORT       = YES
+
+# If you use STL classes (i.e. std::string, std::vector, etc.) but do not want
+# to include (a tag file for) the STL sources as input, then you should set this
+# tag to YES in order to let doxygen match functions declarations and
+# definitions whose arguments contain STL classes (e.g. func(std::string);
+# versus func(std::string) {}). This also make the inheritance and collaboration
+# diagrams that involve STL classes more complete and accurate.
+# The default value is: NO.
+
+BUILTIN_STL_SUPPORT    = NO
+
+# If you use Microsoft's C++/CLI language, you should set this option to YES to
+# enable parsing support.
+# The default value is: NO.
+
+CPP_CLI_SUPPORT        = NO
+
+# Set the SIP_SUPPORT tag to YES if your project consists of sip (see:
+# http://www.riverbankcomputing.co.uk/software/sip/intro) sources only. Doxygen
+# will parse them like normal C++ but will assume all classes use public instead
+# of private inheritance when no explicit protection keyword is present.
+# The default value is: NO.
+
+SIP_SUPPORT            = NO
+
+# For Microsoft's IDL there are propget and propput attributes to indicate
+# getter and setter methods for a property. Setting this option to YES will make
+# doxygen to replace the get and set methods by a property in the documentation.
+# This will only work if the methods are indeed getting or setting a simple
+# type. If this is not the case, or you want to show the methods anyway, you
+# should set this option to NO.
+# The default value is: YES.
+
+IDL_PROPERTY_SUPPORT   = YES
+
+# If member grouping is used in the documentation and the DISTRIBUTE_GROUP_DOC
+# tag is set to YES, then doxygen will reuse the documentation of the first
+# member in the group (if any) for the other members of the group. By default
+# all members of a group must be documented explicitly.
+# The default value is: NO.
+
+DISTRIBUTE_GROUP_DOC   = NO
+
+# Set the SUBGROUPING tag to YES to allow class member groups of the same type
+# (for instance a group of public functions) to be put as a subgroup of that
+# type (e.g. under the Public Functions section). Set it to NO to prevent
+# subgrouping. Alternatively, this can be done per class using the
+# \nosubgrouping command.
+# The default value is: YES.
+
+SUBGROUPING            = YES
+
+# When the INLINE_GROUPED_CLASSES tag is set to YES, classes, structs and unions
+# are shown inside the group in which they are included (e.g. using \ingroup)
+# instead of on a separate page (for HTML and Man pages) or section (for LaTeX
+# and RTF).
+#
+# Note that this feature does not work in combination with
+# SEPARATE_MEMBER_PAGES.
+# The default value is: NO.
+
+INLINE_GROUPED_CLASSES = NO
+
+# When the INLINE_SIMPLE_STRUCTS tag is set to YES, structs, classes, and unions
+# with only public data fields or simple typedef fields will be shown inline in
+# the documentation of the scope in which they are defined (i.e. file,
+# namespace, or group documentation), provided this scope is documented. If set
+# to NO, structs, classes, and unions are shown on a separate page (for HTML and
+# Man pages) or section (for LaTeX and RTF).
+# The default value is: NO.
+
+INLINE_SIMPLE_STRUCTS  = NO
+
+# When TYPEDEF_HIDES_STRUCT tag is enabled, a typedef of a struct, union, or
+# enum is documented as struct, union, or enum with the name of the typedef. So
+# typedef struct TypeS {} TypeT, will appear in the documentation as a struct
+# with name TypeT. When disabled the typedef will appear as a member of a file,
+# namespace, or class. And the struct will be named TypeS. This can typically be
+# useful for C code in case the coding convention dictates that all compound
+# types are typedef'ed and only the typedef is referenced, never the tag name.
+# The default value is: NO.
+
+TYPEDEF_HIDES_STRUCT   = NO
+
+# The size of the symbol lookup cache can be set using LOOKUP_CACHE_SIZE. This
+# cache is used to resolve symbols given their name and scope. Since this can be
+# an expensive process and often the same symbol appears multiple times in the
+# code, doxygen keeps a cache of pre-resolved symbols. If the cache is too small
+# doxygen will become slower. If the cache is too large, memory is wasted. The
+# cache size is given by this formula: 2^(16+LOOKUP_CACHE_SIZE). The valid range
+# is 0..9, the default is 0, corresponding to a cache size of 2^16=65536
+# symbols. At the end of a run doxygen will report the cache usage and suggest
+# the optimal cache size from a speed point of view.
+# Minimum value: 0, maximum value: 9, default value: 0.
+
+LOOKUP_CACHE_SIZE      = 0
+
+#---------------------------------------------------------------------------
+# Build related configuration options
+#---------------------------------------------------------------------------
+
+# If the EXTRACT_ALL tag is set to YES doxygen will assume all entities in
+# documentation are documented, even if no documentation was available. Private
+# class members and static file members will be hidden unless the
+# EXTRACT_PRIVATE respectively EXTRACT_STATIC tags are set to YES.
+# Note: This will also disable the warnings about undocumented members that are
+# normally produced when WARNINGS is set to YES.
+# The default value is: NO.
+
+EXTRACT_ALL            = NO
+
+# If the EXTRACT_PRIVATE tag is set to YES all private members of a class will
+# be included in the documentation.
+# The default value is: NO.
+
+EXTRACT_PRIVATE        = NO
+
+# If the EXTRACT_PACKAGE tag is set to YES all members with package or internal
+# scope will be included in the documentation.
+# The default value is: NO.
+
+EXTRACT_PACKAGE        = NO
+
+# If the EXTRACT_STATIC tag is set to YES all static members of a file will be
+# included in the documentation.
+# The default value is: NO.
+
+EXTRACT_STATIC         = NO
+
+# If the EXTRACT_LOCAL_CLASSES tag is set to YES classes (and structs) defined
+# locally in source files will be included in the documentation. If set to NO
+# only classes defined in header files are included. Does not have any effect
+# for Java sources.
+# The default value is: YES.
+
+EXTRACT_LOCAL_CLASSES  = YES
+
+# This flag is only useful for Objective-C code. When set to YES local methods,
+# which are defined in the implementation section but not in the interface are
+# included in the documentation. If set to NO only methods in the interface are
+# included.
+# The default value is: NO.
+
+EXTRACT_LOCAL_METHODS  = NO
+
+# If this flag is set to YES, the members of anonymous namespaces will be
+# extracted and appear in the documentation as a namespace called
+# 'anonymous_namespace{file}', where file will be replaced with the base name of
+# the file that contains the anonymous namespace. By default anonymous namespace
+# are hidden.
+# The default value is: NO.
+
+EXTRACT_ANON_NSPACES   = NO
+
+# If the HIDE_UNDOC_MEMBERS tag is set to YES, doxygen will hide all
+# undocumented members inside documented classes or files. If set to NO these
+# members will be included in the various overviews, but no documentation
+# section is generated. This option has no effect if EXTRACT_ALL is enabled.
+# The default value is: NO.
+
+HIDE_UNDOC_MEMBERS     = NO
+
+# If the HIDE_UNDOC_CLASSES tag is set to YES, doxygen will hide all
+# undocumented classes that are normally visible in the class hierarchy. If set
+# to NO these classes will be included in the various overviews. This option has
+# no effect if EXTRACT_ALL is enabled.
+# The default value is: NO.
+
+HIDE_UNDOC_CLASSES     = NO
+
+# If the HIDE_FRIEND_COMPOUNDS tag is set to YES, doxygen will hide all friend
+# (class|struct|union) declarations. If set to NO these declarations will be
+# included in the documentation.
+# The default value is: NO.
+
+HIDE_FRIEND_COMPOUNDS  = NO
+
+# If the HIDE_IN_BODY_DOCS tag is set to YES, doxygen will hide any
+# documentation blocks found inside the body of a function. If set to NO these
+# blocks will be appended to the function's detailed documentation block.
+# The default value is: NO.
+
+HIDE_IN_BODY_DOCS      = NO
+
+# The INTERNAL_DOCS tag determines if documentation that is typed after a
+# \internal command is included. If the tag is set to NO then the documentation
+# will be excluded. Set it to YES to include the internal documentation.
+# The default value is: NO.
+
+INTERNAL_DOCS          = NO
+
+# If the CASE_SENSE_NAMES tag is set to NO then doxygen will only generate file
+# names in lower-case letters. If set to YES upper-case letters are also
+# allowed. This is useful if you have classes or files whose names only differ
+# in case and if your file system supports case sensitive file names. Windows
+# and Mac users are advised to set this option to NO.
+# The default value is: system dependent.
+
+CASE_SENSE_NAMES       = YES
+
+# If the HIDE_SCOPE_NAMES tag is set to NO then doxygen will show members with
+# their full class and namespace scopes in the documentation. If set to YES the
+# scope will be hidden.
+# The default value is: NO.
+
+HIDE_SCOPE_NAMES       = NO
+
+# If the SHOW_INCLUDE_FILES tag is set to YES then doxygen will put a list of
+# the files that are included by a file in the documentation of that file.
+# The default value is: YES.
+
+SHOW_INCLUDE_FILES     = YES
+
+# If the SHOW_GROUPED_MEMB_INC tag is set to YES then Doxygen will add for each
+# grouped member an include statement to the documentation, telling the reader
+# which file to include in order to use the member.
+# The default value is: NO.
+
+SHOW_GROUPED_MEMB_INC  = NO
+
+# If the FORCE_LOCAL_INCLUDES tag is set to YES then doxygen will list include
+# files with double quotes in the documentation rather than with sharp brackets.
+# The default value is: NO.
+
+FORCE_LOCAL_INCLUDES   = NO
+
+# If the INLINE_INFO tag is set to YES then a tag [inline] is inserted in the
+# documentation for inline members.
+# The default value is: YES.
+
+INLINE_INFO            = YES
+
+# If the SORT_MEMBER_DOCS tag is set to YES then doxygen will sort the
+# (detailed) documentation of file and class members alphabetically by member
+# name. If set to NO the members will appear in declaration order.
+# The default value is: YES.
+
+SORT_MEMBER_DOCS       = YES
+
+# If the SORT_BRIEF_DOCS tag is set to YES then doxygen will sort the brief
+# descriptions of file, namespace and class members alphabetically by member
+# name. If set to NO the members will appear in declaration order. Note that
+# this will also influence the order of the classes in the class list.
+# The default value is: NO.
+
+SORT_BRIEF_DOCS        = NO
+
+# If the SORT_MEMBERS_CTORS_1ST tag is set to YES then doxygen will sort the
+# (brief and detailed) documentation of class members so that constructors and
+# destructors are listed first. If set to NO the constructors will appear in the
+# respective orders defined by SORT_BRIEF_DOCS and SORT_MEMBER_DOCS.
+# Note: If SORT_BRIEF_DOCS is set to NO this option is ignored for sorting brief
+# member documentation.
+# Note: If SORT_MEMBER_DOCS is set to NO this option is ignored for sorting
+# detailed member documentation.
+# The default value is: NO.
+
+SORT_MEMBERS_CTORS_1ST = NO
+
+# If the SORT_GROUP_NAMES tag is set to YES then doxygen will sort the hierarchy
+# of group names into alphabetical order. If set to NO the group names will
+# appear in their defined order.
+# The default value is: NO.
+
+SORT_GROUP_NAMES       = NO
+
+# If the SORT_BY_SCOPE_NAME tag is set to YES, the class list will be sorted by
+# fully-qualified names, including namespaces. If set to NO, the class list will
+# be sorted only by class name, not including the namespace part.
+# Note: This option is not very useful if HIDE_SCOPE_NAMES is set to YES.
+# Note: This option applies only to the class list, not to the alphabetical
+# list.
+# The default value is: NO.
+
+SORT_BY_SCOPE_NAME     = NO
+
+# If the STRICT_PROTO_MATCHING option is enabled and doxygen fails to do proper
+# type resolution of all parameters of a function it will reject a match between
+# the prototype and the implementation of a member function even if there is
+# only one candidate or it is obvious which candidate to choose by doing a
+# simple string match. By disabling STRICT_PROTO_MATCHING doxygen will still
+# accept a match between prototype and implementation in such cases.
+# The default value is: NO.
+
+STRICT_PROTO_MATCHING  = NO
+
+# The GENERATE_TODOLIST tag can be used to enable ( YES) or disable ( NO) the
+# todo list. This list is created by putting \todo commands in the
+# documentation.
+# The default value is: YES.
+
+GENERATE_TODOLIST      = YES
+
+# The GENERATE_TESTLIST tag can be used to enable ( YES) or disable ( NO) the
+# test list. This list is created by putting \test commands in the
+# documentation.
+# The default value is: YES.
+
+GENERATE_TESTLIST      = YES
+
+# The GENERATE_BUGLIST tag can be used to enable ( YES) or disable ( NO) the bug
+# list. This list is created by putting \bug commands in the documentation.
+# The default value is: YES.
+
+GENERATE_BUGLIST       = YES
+
+# The GENERATE_DEPRECATEDLIST tag can be used to enable ( YES) or disable ( NO)
+# the deprecated list. This list is created by putting \deprecated commands in
+# the documentation.
+# The default value is: YES.
+
+GENERATE_DEPRECATEDLIST= YES
+
+# The ENABLED_SECTIONS tag can be used to enable conditional documentation
+# sections, marked by \if <section_label> ... \endif and \cond <section_label>
+# ... \endcond blocks.
+
+ENABLED_SECTIONS       =
+
+# The MAX_INITIALIZER_LINES tag determines the maximum number of lines that the
+# initial value of a variable or macro / define can have for it to appear in the
+# documentation. If the initializer consists of more lines than specified here
+# it will be hidden. Use a value of 0 to hide initializers completely. The
+# appearance of the value of individual variables and macros / defines can be
+# controlled using \showinitializer or \hideinitializer command in the
+# documentation regardless of this setting.
+# Minimum value: 0, maximum value: 10000, default value: 30.
+
+MAX_INITIALIZER_LINES  = 30
+
+# Set the SHOW_USED_FILES tag to NO to disable the list of files generated at
+# the bottom of the documentation of classes and structs. If set to YES the list
+# will mention the files that were used to generate the documentation.
+# The default value is: YES.
+
+SHOW_USED_FILES        = YES
+
+# Set the SHOW_FILES tag to NO to disable the generation of the Files page. This
+# will remove the Files entry from the Quick Index and from the Folder Tree View
+# (if specified).
+# The default value is: YES.
+
+SHOW_FILES             = YES
+
+# Set the SHOW_NAMESPACES tag to NO to disable the generation of the Namespaces
+# page. This will remove the Namespaces entry from the Quick Index and from the
+# Folder Tree View (if specified).
+# The default value is: YES.
+
+SHOW_NAMESPACES        = YES
+
+# The FILE_VERSION_FILTER tag can be used to specify a program or script that
+# doxygen should invoke to get the current version for each file (typically from
+# the version control system). Doxygen will invoke the program by executing (via
+# popen()) the command command input-file, where command is the value of the
+# FILE_VERSION_FILTER tag, and input-file is the name of an input file provided
+# by doxygen. Whatever the program writes to standard output is used as the file
+# version. For an example see the documentation.
+
+FILE_VERSION_FILTER    =
+
+# The LAYOUT_FILE tag can be used to specify a layout file which will be parsed
+# by doxygen. The layout file controls the global structure of the generated
+# output files in an output format independent way. To create the layout file
+# that represents doxygen's defaults, run doxygen with the -l option. You can
+# optionally specify a file name after the option, if omitted DoxygenLayout.xml
+# will be used as the name of the layout file.
+#
+# Note that if you run doxygen from a directory containing a file called
+# DoxygenLayout.xml, doxygen will parse it automatically even if the LAYOUT_FILE
+# tag is left empty.
+
+LAYOUT_FILE            =
+
+# The CITE_BIB_FILES tag can be used to specify one or more bib files containing
+# the reference definitions. This must be a list of .bib files. The .bib
+# extension is automatically appended if omitted. This requires the bibtex tool
+# to be installed. See also http://en.wikipedia.org/wiki/BibTeX for more info.
+# For LaTeX the style of the bibliography can be controlled using
+# LATEX_BIB_STYLE. To use this feature you need bibtex and perl available in the
+# search path. Do not use file names with spaces, bibtex cannot handle them. See
+# also \cite for info how to create references.
+
+CITE_BIB_FILES         =
+
+#---------------------------------------------------------------------------
+# Configuration options related to warning and progress messages
+#---------------------------------------------------------------------------
+
+# The QUIET tag can be used to turn on/off the messages that are generated to
+# standard output by doxygen. If QUIET is set to YES this implies that the
+# messages are off.
+# The default value is: NO.
+
+QUIET                  = NO
+
+# The WARNINGS tag can be used to turn on/off the warning messages that are
+# generated to standard error ( stderr) by doxygen. If WARNINGS is set to YES
+# this implies that the warnings are on.
+#
+# Tip: Turn warnings on while writing the documentation.
+# The default value is: YES.
+
+WARNINGS               = YES
+
+# If the WARN_IF_UNDOCUMENTED tag is set to YES, then doxygen will generate
+# warnings for undocumented members. If EXTRACT_ALL is set to YES then this flag
+# will automatically be disabled.
+# The default value is: YES.
+
+WARN_IF_UNDOCUMENTED   = YES
+
+# If the WARN_IF_DOC_ERROR tag is set to YES, doxygen will generate warnings for
+# potential errors in the documentation, such as not documenting some parameters
+# in a documented function, or documenting parameters that don't exist or using
+# markup commands wrongly.
+# The default value is: YES.
+
+WARN_IF_DOC_ERROR      = YES
+
+# This WARN_NO_PARAMDOC option can be enabled to get warnings for functions that
+# are documented, but have no documentation for their parameters or return
+# value. If set to NO doxygen will only warn about wrong or incomplete parameter
+# documentation, but not about the absence of documentation.
+# The default value is: NO.
+
+WARN_NO_PARAMDOC       = NO
+
+# The WARN_FORMAT tag determines the format of the warning messages that doxygen
+# can produce. The string should contain the $file, $line, and $text tags, which
+# will be replaced by the file and line number from which the warning originated
+# and the warning text. Optionally the format may contain $version, which will
+# be replaced by the version of the file (if it could be obtained via
+# FILE_VERSION_FILTER)
+# The default value is: $file:$line: $text.
+
+WARN_FORMAT            = "$file:$line: $text"
+
+# The WARN_LOGFILE tag can be used to specify a file to which warning and error
+# messages should be written. If left blank the output is written to standard
+# error (stderr).
+
+WARN_LOGFILE           =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the input files
+#---------------------------------------------------------------------------
+
+# The INPUT tag is used to specify the files and/or directories that contain
+# documented source files. You may enter file names like myfile.cpp or
+# directories like /usr/src/myproject. Separate the files or directories with
+# spaces.
+# Note: If this tag is empty the current directory is searched.
+
+INPUT                  =
+
+# This tag can be used to specify the character encoding of the source files
+# that doxygen parses. Internally doxygen uses the UTF-8 encoding. Doxygen uses
+# libiconv (or the iconv built into libc) for the transcoding. See the libiconv
+# documentation (see: http://www.gnu.org/software/libiconv) for the list of
+# possible encodings.
+# The default value is: UTF-8.
+
+INPUT_ENCODING         = UTF-8
+
+# If the value of the INPUT tag contains directories, you can use the
+# FILE_PATTERNS tag to specify one or more wildcard patterns (like *.cpp and
+# *.h) to filter out the source-files in the directories. If left blank the
+# following patterns are tested:*.c, *.cc, *.cxx, *.cpp, *.c++, *.java, *.ii,
+# *.ixx, *.ipp, *.i++, *.inl, *.idl, *.ddl, *.odl, *.h, *.hh, *.hxx, *.hpp,
+# *.h++, *.cs, *.d, *.php, *.php4, *.php5, *.phtml, *.inc, *.m, *.markdown,
+# *.md, *.mm, *.dox, *.py, *.f90, *.f, *.for, *.tcl, *.vhd, *.vhdl, *.ucf,
+# *.qsf, *.as and *.js.
+
+FILE_PATTERNS          =
+
+# The RECURSIVE tag can be used to specify whether or not subdirectories should
+# be searched for input files as well.
+# The default value is: NO.
+
+RECURSIVE              = NO
+
+# The EXCLUDE tag can be used to specify files and/or directories that should be
+# excluded from the INPUT source files. This way you can easily exclude a
+# subdirectory from a directory tree whose root is specified with the INPUT tag.
+#
+# Note that relative paths are relative to the directory from which doxygen is
+# run.
+
+EXCLUDE                =
+
+# The EXCLUDE_SYMLINKS tag can be used to select whether or not files or
+# directories that are symbolic links (a Unix file system feature) are excluded
+# from the input.
+# The default value is: NO.
+
+EXCLUDE_SYMLINKS       = NO
+
+# If the value of the INPUT tag contains directories, you can use the
+# EXCLUDE_PATTERNS tag to specify one or more wildcard patterns to exclude
+# certain files from those directories.
+#
+# Note that the wildcards are matched against the file with absolute path, so to
+# exclude all test directories for example use the pattern */test/*
+
+EXCLUDE_PATTERNS       =
+
+# The EXCLUDE_SYMBOLS tag can be used to specify one or more symbol names
+# (namespaces, classes, functions, etc.) that should be excluded from the
+# output. The symbol name can be a fully qualified name, a word, or if the
+# wildcard * is used, a substring. Examples: ANamespace, AClass,
+# AClass::ANamespace, ANamespace::*Test
+#
+# Note that the wildcards are matched against the file with absolute path, so to
+# exclude all test directories use the pattern */test/*
+
+EXCLUDE_SYMBOLS        =
+
+# The EXAMPLE_PATH tag can be used to specify one or more files or directories
+# that contain example code fragments that are included (see the \include
+# command).
+
+EXAMPLE_PATH           =
+
+# If the value of the EXAMPLE_PATH tag contains directories, you can use the
+# EXAMPLE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp and
+# *.h) to filter out the source-files in the directories. If left blank all
+# files are included.
+
+EXAMPLE_PATTERNS       =
+
+# If the EXAMPLE_RECURSIVE tag is set to YES then subdirectories will be
+# searched for input files to be used with the \include or \dontinclude commands
+# irrespective of the value of the RECURSIVE tag.
+# The default value is: NO.
+
+EXAMPLE_RECURSIVE      = NO
+
+# The IMAGE_PATH tag can be used to specify one or more files or directories
+# that contain images that are to be included in the documentation (see the
+# \image command).
+
+IMAGE_PATH             =
+
+# The INPUT_FILTER tag can be used to specify a program that doxygen should
+# invoke to filter for each input file. Doxygen will invoke the filter program
+# by executing (via popen()) the command:
+#
+# <filter> <input-file>
+#
+# where <filter> is the value of the INPUT_FILTER tag, and <input-file> is the
+# name of an input file. Doxygen will then use the output that the filter
+# program writes to standard output. If FILTER_PATTERNS is specified, this tag
+# will be ignored.
+#
+# Note that the filter must not add or remove lines; it is applied before the
+# code is scanned, but not when the output code is generated. If lines are added
+# or removed, the anchors will not be placed correctly.
+
+INPUT_FILTER           =
+
+# The FILTER_PATTERNS tag can be used to specify filters on a per file pattern
+# basis. Doxygen will compare the file name with each pattern and apply the
+# filter if there is a match. The filters are a list of the form: pattern=filter
+# (like *.cpp=my_cpp_filter). See INPUT_FILTER for further information on how
+# filters are used. If the FILTER_PATTERNS tag is empty or if none of the
+# patterns match the file name, INPUT_FILTER is applied.
+
+FILTER_PATTERNS        =
+
+# If the FILTER_SOURCE_FILES tag is set to YES, the input filter (if set using
+# INPUT_FILTER ) will also be used to filter the input files that are used for
+# producing the source files to browse (i.e. when SOURCE_BROWSER is set to YES).
+# The default value is: NO.
+
+FILTER_SOURCE_FILES    = NO
+
+# The FILTER_SOURCE_PATTERNS tag can be used to specify source filters per file
+# pattern. A pattern will override the setting for FILTER_PATTERN (if any) and
+# it is also possible to disable source filtering for a specific pattern using
+# *.ext= (so without naming a filter).
+# This tag requires that the tag FILTER_SOURCE_FILES is set to YES.
+
+FILTER_SOURCE_PATTERNS =
+
+# If the USE_MDFILE_AS_MAINPAGE tag refers to the name of a markdown file that
+# is part of the input, its contents will be placed on the main page
+# (index.html). This can be useful if you have a project on for instance GitHub
+# and want to reuse the introduction page also for the doxygen output.
+
+USE_MDFILE_AS_MAINPAGE =
+
+#---------------------------------------------------------------------------
+# Configuration options related to source browsing
+#---------------------------------------------------------------------------
+
+# If the SOURCE_BROWSER tag is set to YES then a list of source files will be
+# generated. Documented entities will be cross-referenced with these sources.
+#
+# Note: To get rid of all source code in the generated output, make sure that
+# also VERBATIM_HEADERS is set to NO.
+# The default value is: NO.
+
+SOURCE_BROWSER         = NO
+
+# Setting the INLINE_SOURCES tag to YES will include the body of functions,
+# classes and enums directly into the documentation.
+# The default value is: NO.
+
+INLINE_SOURCES         = NO
+
+# Setting the STRIP_CODE_COMMENTS tag to YES will instruct doxygen to hide any
+# special comment blocks from generated source code fragments. Normal C, C++ and
+# Fortran comments will always remain visible.
+# The default value is: YES.
+
+STRIP_CODE_COMMENTS    = YES
+
+# If the REFERENCED_BY_RELATION tag is set to YES then for each documented
+# function all documented functions referencing it will be listed.
+# The default value is: NO.
+
+REFERENCED_BY_RELATION = NO
+
+# If the REFERENCES_RELATION tag is set to YES then for each documented function
+# all documented entities called/used by that function will be listed.
+# The default value is: NO.
+
+REFERENCES_RELATION    = NO
+
+# If the REFERENCES_LINK_SOURCE tag is set to YES and SOURCE_BROWSER tag is set
+# to YES, then the hyperlinks from functions in REFERENCES_RELATION and
+# REFERENCED_BY_RELATION lists will link to the source code. Otherwise they will
+# link to the documentation.
+# The default value is: YES.
+
+REFERENCES_LINK_SOURCE = YES
+
+# If SOURCE_TOOLTIPS is enabled (the default) then hovering a hyperlink in the
+# source code will show a tooltip with additional information such as prototype,
+# brief description and links to the definition and documentation. Since this
+# will make the HTML file larger and loading of large files a bit slower, you
+# can opt to disable this feature.
+# The default value is: YES.
+# This tag requires that the tag SOURCE_BROWSER is set to YES.
+
+SOURCE_TOOLTIPS        = YES
+
+# If the USE_HTAGS tag is set to YES then the references to source code will
+# point to the HTML generated by the htags(1) tool instead of doxygen built-in
+# source browser. The htags tool is part of GNU's global source tagging system
+# (see http://www.gnu.org/software/global/global.html). You will need version
+# 4.8.6 or higher.
+#
+# To use it do the following:
+# - Install the latest version of global
+# - Enable SOURCE_BROWSER and USE_HTAGS in the config file
+# - Make sure the INPUT points to the root of the source tree
+# - Run doxygen as normal
+#
+# Doxygen will invoke htags (and that will in turn invoke gtags), so these
+# tools must be available from the command line (i.e. in the search path).
+#
+# The result: instead of the source browser generated by doxygen, the links to
+# source code will now point to the output of htags.
+# The default value is: NO.
+# This tag requires that the tag SOURCE_BROWSER is set to YES.
+
+USE_HTAGS              = NO
+
+# If the VERBATIM_HEADERS tag is set the YES then doxygen will generate a
+# verbatim copy of the header file for each class for which an include is
+# specified. Set to NO to disable this.
+# See also: Section \class.
+# The default value is: YES.
+
+VERBATIM_HEADERS       = YES
+
+#---------------------------------------------------------------------------
+# Configuration options related to the alphabetical class index
+#---------------------------------------------------------------------------
+
+# If the ALPHABETICAL_INDEX tag is set to YES, an alphabetical index of all
+# compounds will be generated. Enable this if the project contains a lot of
+# classes, structs, unions or interfaces.
+# The default value is: YES.
+
+ALPHABETICAL_INDEX     = YES
+
+# The COLS_IN_ALPHA_INDEX tag can be used to specify the number of columns in
+# which the alphabetical index list will be split.
+# Minimum value: 1, maximum value: 20, default value: 5.
+# This tag requires that the tag ALPHABETICAL_INDEX is set to YES.
+
+COLS_IN_ALPHA_INDEX    = 5
+
+# In case all classes in a project start with a common prefix, all classes will
+# be put under the same header in the alphabetical index. The IGNORE_PREFIX tag
+# can be used to specify a prefix (or a list of prefixes) that should be ignored
+# while generating the index headers.
+# This tag requires that the tag ALPHABETICAL_INDEX is set to YES.
+
+IGNORE_PREFIX          =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the HTML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_HTML tag is set to YES doxygen will generate HTML output
+# The default value is: YES.
+
+GENERATE_HTML          = YES
+
+# The HTML_OUTPUT tag is used to specify where the HTML docs will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: html.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_OUTPUT            = html
+
+# The HTML_FILE_EXTENSION tag can be used to specify the file extension for each
+# generated HTML page (for example: .htm, .php, .asp).
+# The default value is: .html.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_FILE_EXTENSION    = .html
+
+# The HTML_HEADER tag can be used to specify a user-defined HTML header file for
+# each generated HTML page. If the tag is left blank doxygen will generate a
+# standard header.
+#
+# To get valid HTML the header file that includes any scripts and style sheets
+# that doxygen needs, which is dependent on the configuration options used (e.g.
+# the setting GENERATE_TREEVIEW). It is highly recommended to start with a
+# default header using
+# doxygen -w html new_header.html new_footer.html new_stylesheet.css
+# YourConfigFile
+# and then modify the file new_header.html. See also section "Doxygen usage"
+# for information on how to generate the default header that doxygen normally
+# uses.
+# Note: The header is subject to change so you typically have to regenerate the
+# default header when upgrading to a newer version of doxygen. For a description
+# of the possible markers and block names see the documentation.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_HEADER            =
+
+# The HTML_FOOTER tag can be used to specify a user-defined HTML footer for each
+# generated HTML page. If the tag is left blank doxygen will generate a standard
+# footer. See HTML_HEADER for more information on how to generate a default
+# footer and what special commands can be used inside the footer. See also
+# section "Doxygen usage" for information on how to generate the default footer
+# that doxygen normally uses.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_FOOTER            =
+
+# The HTML_STYLESHEET tag can be used to specify a user-defined cascading style
+# sheet that is used by each HTML page. It can be used to fine-tune the look of
+# the HTML output. If left blank doxygen will generate a default style sheet.
+# See also section "Doxygen usage" for information on how to generate the style
+# sheet that doxygen normally uses.
+# Note: It is recommended to use HTML_EXTRA_STYLESHEET instead of this tag, as
+# it is more robust and this tag (HTML_STYLESHEET) will in the future become
+# obsolete.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_STYLESHEET        =
+
+# The HTML_EXTRA_STYLESHEET tag can be used to specify an additional user-
+# defined cascading style sheet that is included after the standard style sheets
+# created by doxygen. Using this option one can overrule certain style aspects.
+# This is preferred over using HTML_STYLESHEET since it does not replace the
+# standard style sheet and is therefor more robust against future updates.
+# Doxygen will copy the style sheet file to the output directory. For an example
+# see the documentation.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_EXTRA_STYLESHEET  =
+
+# The HTML_EXTRA_FILES tag can be used to specify one or more extra images or
+# other source files which should be copied to the HTML output directory. Note
+# that these files will be copied to the base HTML output directory. Use the
+# $relpath^ marker in the HTML_HEADER and/or HTML_FOOTER files to load these
+# files. In the HTML_STYLESHEET file, use the file name only. Also note that the
+# files will be copied as-is; there are no commands or markers available.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_EXTRA_FILES       =
+
+# The HTML_COLORSTYLE_HUE tag controls the color of the HTML output. Doxygen
+# will adjust the colors in the stylesheet and background images according to
+# this color. Hue is specified as an angle on a colorwheel, see
+# http://en.wikipedia.org/wiki/Hue for more information. For instance the value
+# 0 represents red, 60 is yellow, 120 is green, 180 is cyan, 240 is blue, 300
+# purple, and 360 is red again.
+# Minimum value: 0, maximum value: 359, default value: 220.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_COLORSTYLE_HUE    = 220
+
+# The HTML_COLORSTYLE_SAT tag controls the purity (or saturation) of the colors
+# in the HTML output. For a value of 0 the output will use grayscales only. A
+# value of 255 will produce the most vivid colors.
+# Minimum value: 0, maximum value: 255, default value: 100.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_COLORSTYLE_SAT    = 100
+
+# The HTML_COLORSTYLE_GAMMA tag controls the gamma correction applied to the
+# luminance component of the colors in the HTML output. Values below 100
+# gradually make the output lighter, whereas values above 100 make the output
+# darker. The value divided by 100 is the actual gamma applied, so 80 represents
+# a gamma of 0.8, The value 220 represents a gamma of 2.2, and 100 does not
+# change the gamma.
+# Minimum value: 40, maximum value: 240, default value: 80.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_COLORSTYLE_GAMMA  = 80
+
+# If the HTML_TIMESTAMP tag is set to YES then the footer of each generated HTML
+# page will contain the date and time when the page was generated. Setting this
+# to NO can help when comparing the output of multiple runs.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_TIMESTAMP         = YES
+
+# If the HTML_DYNAMIC_SECTIONS tag is set to YES then the generated HTML
+# documentation will contain sections that can be hidden and shown after the
+# page has loaded.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_DYNAMIC_SECTIONS  = NO
+
+# With HTML_INDEX_NUM_ENTRIES one can control the preferred number of entries
+# shown in the various tree structured indices initially; the user can expand
+# and collapse entries dynamically later on. Doxygen will expand the tree to
+# such a level that at most the specified number of entries are visible (unless
+# a fully collapsed tree already exceeds this amount). So setting the number of
+# entries 1 will produce a full collapsed tree by default. 0 is a special value
+# representing an infinite number of entries and will result in a full expanded
+# tree by default.
+# Minimum value: 0, maximum value: 9999, default value: 100.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_INDEX_NUM_ENTRIES = 100
+
+# If the GENERATE_DOCSET tag is set to YES, additional index files will be
+# generated that can be used as input for Apple's Xcode 3 integrated development
+# environment (see: http://developer.apple.com/tools/xcode/), introduced with
+# OSX 10.5 (Leopard). To create a documentation set, doxygen will generate a
+# Makefile in the HTML output directory. Running make will produce the docset in
+# that directory and running make install will install the docset in
+# ~/Library/Developer/Shared/Documentation/DocSets so that Xcode will find it at
+# startup. See http://developer.apple.com/tools/creatingdocsetswithdoxygen.html
+# for more information.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_DOCSET        = NO
+
+# This tag determines the name of the docset feed. A documentation feed provides
+# an umbrella under which multiple documentation sets from a single provider
+# (such as a company or product suite) can be grouped.
+# The default value is: Doxygen generated docs.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_FEEDNAME        = "Doxygen generated docs"
+
+# This tag specifies a string that should uniquely identify the documentation
+# set bundle. This should be a reverse domain-name style string, e.g.
+# com.mycompany.MyDocSet. Doxygen will append .docset to the name.
+# The default value is: org.doxygen.Project.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_BUNDLE_ID       = org.doxygen.Project
+
+# The DOCSET_PUBLISHER_ID tag specifies a string that should uniquely identify
+# the documentation publisher. This should be a reverse domain-name style
+# string, e.g. com.mycompany.MyDocSet.documentation.
+# The default value is: org.doxygen.Publisher.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_PUBLISHER_ID    = org.doxygen.Publisher
+
+# The DOCSET_PUBLISHER_NAME tag identifies the documentation publisher.
+# The default value is: Publisher.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_PUBLISHER_NAME  = Publisher
+
+# If the GENERATE_HTMLHELP tag is set to YES then doxygen generates three
+# additional HTML index files: index.hhp, index.hhc, and index.hhk. The
+# index.hhp is a project file that can be read by Microsoft's HTML Help Workshop
+# (see: http://www.microsoft.com/en-us/download/details.aspx?id=21138) on
+# Windows.
+#
+# The HTML Help Workshop contains a compiler that can convert all HTML output
+# generated by doxygen into a single compiled HTML file (.chm). Compiled HTML
+# files are now used as the Windows 98 help format, and will replace the old
+# Windows help format (.hlp) on all Windows platforms in the future. Compressed
+# HTML files also contain an index, a table of contents, and you can search for
+# words in the documentation. The HTML workshop also contains a viewer for
+# compressed HTML files.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_HTMLHELP      = NO
+
+# The CHM_FILE tag can be used to specify the file name of the resulting .chm
+# file. You can add a path in front of the file if the result should not be
+# written to the html output directory.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+CHM_FILE               =
+
+# The HHC_LOCATION tag can be used to specify the location (absolute path
+# including file name) of the HTML help compiler ( hhc.exe). If non-empty
+# doxygen will try to run the HTML help compiler on the generated index.hhp.
+# The file has to be specified with full path.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+HHC_LOCATION           =
+
+# The GENERATE_CHI flag controls if a separate .chi index file is generated (
+# YES) or that it should be included in the master .chm file ( NO).
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+GENERATE_CHI           = NO
+
+# The CHM_INDEX_ENCODING is used to encode HtmlHelp index ( hhk), content ( hhc)
+# and project file content.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+CHM_INDEX_ENCODING     =
+
+# The BINARY_TOC flag controls whether a binary table of contents is generated (
+# YES) or a normal table of contents ( NO) in the .chm file.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+BINARY_TOC             = NO
+
+# The TOC_EXPAND flag can be set to YES to add extra items for group members to
+# the table of contents of the HTML help documentation and to the tree view.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+TOC_EXPAND             = NO
+
+# If the GENERATE_QHP tag is set to YES and both QHP_NAMESPACE and
+# QHP_VIRTUAL_FOLDER are set, an additional index file will be generated that
+# can be used as input for Qt's qhelpgenerator to generate a Qt Compressed Help
+# (.qch) of the generated HTML documentation.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_QHP           = NO
+
+# If the QHG_LOCATION tag is specified, the QCH_FILE tag can be used to specify
+# the file name of the resulting .qch file. The path specified is relative to
+# the HTML output folder.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QCH_FILE               =
+
+# The QHP_NAMESPACE tag specifies the namespace to use when generating Qt Help
+# Project output. For more information please see Qt Help Project / Namespace
+# (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#namespace).
+# The default value is: org.doxygen.Project.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_NAMESPACE          = org.doxygen.Project
+
+# The QHP_VIRTUAL_FOLDER tag specifies the namespace to use when generating Qt
+# Help Project output. For more information please see Qt Help Project / Virtual
+# Folders (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#virtual-
+# folders).
+# The default value is: doc.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_VIRTUAL_FOLDER     = doc
+
+# If the QHP_CUST_FILTER_NAME tag is set, it specifies the name of a custom
+# filter to add. For more information please see Qt Help Project / Custom
+# Filters (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#custom-
+# filters).
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_CUST_FILTER_NAME   =
+
+# The QHP_CUST_FILTER_ATTRS tag specifies the list of the attributes of the
+# custom filter to add. For more information please see Qt Help Project / Custom
+# Filters (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#custom-
+# filters).
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_CUST_FILTER_ATTRS  =
+
+# The QHP_SECT_FILTER_ATTRS tag specifies the list of the attributes this
+# project's filter section matches. Qt Help Project / Filter Attributes (see:
+# http://qt-project.org/doc/qt-4.8/qthelpproject.html#filter-attributes).
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_SECT_FILTER_ATTRS  =
+
+# The QHG_LOCATION tag can be used to specify the location of Qt's
+# qhelpgenerator. If non-empty doxygen will try to run qhelpgenerator on the
+# generated .qhp file.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHG_LOCATION           =
+
+# If the GENERATE_ECLIPSEHELP tag is set to YES, additional index files will be
+# generated, together with the HTML files, they form an Eclipse help plugin. To
+# install this plugin and make it available under the help contents menu in
+# Eclipse, the contents of the directory containing the HTML and XML files needs
+# to be copied into the plugins directory of eclipse. The name of the directory
+# within the plugins directory should be the same as the ECLIPSE_DOC_ID value.
+# After copying Eclipse needs to be restarted before the help appears.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_ECLIPSEHELP   = NO
+
+# A unique identifier for the Eclipse help plugin. When installing the plugin
+# the directory name containing the HTML and XML files should also have this
+# name. Each documentation set should have its own identifier.
+# The default value is: org.doxygen.Project.
+# This tag requires that the tag GENERATE_ECLIPSEHELP is set to YES.
+
+ECLIPSE_DOC_ID         = org.doxygen.Project
+
+# If you want full control over the layout of the generated HTML pages it might
+# be necessary to disable the index and replace it with your own. The
+# DISABLE_INDEX tag can be used to turn on/off the condensed index (tabs) at top
+# of each HTML page. A value of NO enables the index and the value YES disables
+# it. Since the tabs in the index contain the same information as the navigation
+# tree, you can set this option to YES if you also set GENERATE_TREEVIEW to YES.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+DISABLE_INDEX          = NO
+
+# The GENERATE_TREEVIEW tag is used to specify whether a tree-like index
+# structure should be generated to display hierarchical information. If the tag
+# value is set to YES, a side panel will be generated containing a tree-like
+# index structure (just like the one that is generated for HTML Help). For this
+# to work a browser that supports JavaScript, DHTML, CSS and frames is required
+# (i.e. any modern browser). Windows users are probably better off using the
+# HTML help feature. Via custom stylesheets (see HTML_EXTRA_STYLESHEET) one can
+# further fine-tune the look of the index. As an example, the default style
+# sheet generated by doxygen has an example that shows how to put an image at
+# the root of the tree instead of the PROJECT_NAME. Since the tree basically has
+# the same information as the tab index, you could consider setting
+# DISABLE_INDEX to YES when enabling this option.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_TREEVIEW      = NO
+
+# The ENUM_VALUES_PER_LINE tag can be used to set the number of enum values that
+# doxygen will group on one line in the generated HTML documentation.
+#
+# Note that a value of 0 will completely suppress the enum values from appearing
+# in the overview section.
+# Minimum value: 0, maximum value: 20, default value: 4.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+ENUM_VALUES_PER_LINE   = 4
+
+# If the treeview is enabled (see GENERATE_TREEVIEW) then this tag can be used
+# to set the initial width (in pixels) of the frame in which the tree is shown.
+# Minimum value: 0, maximum value: 1500, default value: 250.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+TREEVIEW_WIDTH         = 250
+
+# When the EXT_LINKS_IN_WINDOW option is set to YES doxygen will open links to
+# external symbols imported via tag files in a separate window.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+EXT_LINKS_IN_WINDOW    = NO
+
+# Use this tag to change the font size of LaTeX formulas included as images in
+# the HTML documentation. When you change the font size after a successful
+# doxygen run you need to manually remove any form_*.png images from the HTML
+# output directory to force them to be regenerated.
+# Minimum value: 8, maximum value: 50, default value: 10.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+FORMULA_FONTSIZE       = 10
+
+# Use the FORMULA_TRANPARENT tag to determine whether or not the images
+# generated for formulas are transparent PNGs. Transparent PNGs are not
+# supported properly for IE 6.0, but are supported on all modern browsers.
+#
+# Note that when changing this option you need to delete any form_*.png files in
+# the HTML output directory before the changes have effect.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+FORMULA_TRANSPARENT    = YES
+
+# Enable the USE_MATHJAX option to render LaTeX formulas using MathJax (see
+# http://www.mathjax.org) which uses client side Javascript for the rendering
+# instead of using prerendered bitmaps. Use this if you do not have LaTeX
+# installed or if you want to formulas look prettier in the HTML output. When
+# enabled you may also need to install MathJax separately and configure the path
+# to it using the MATHJAX_RELPATH option.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+USE_MATHJAX            = NO
+
+# When MathJax is enabled you can set the default output format to be used for
+# the MathJax output. See the MathJax site (see:
+# http://docs.mathjax.org/en/latest/output.html) for more details.
+# Possible values are: HTML-CSS (which is slower, but has the best
+# compatibility), NativeMML (i.e. MathML) and SVG.
+# The default value is: HTML-CSS.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_FORMAT         = HTML-CSS
+
+# When MathJax is enabled you need to specify the location relative to the HTML
+# output directory using the MATHJAX_RELPATH option. The destination directory
+# should contain the MathJax.js script. For instance, if the mathjax directory
+# is located at the same level as the HTML output directory, then
+# MATHJAX_RELPATH should be ../mathjax. The default value points to the MathJax
+# Content Delivery Network so you can quickly see the result without installing
+# MathJax. However, it is strongly recommended to install a local copy of
+# MathJax from http://www.mathjax.org before deployment.
+# The default value is: http://cdn.mathjax.org/mathjax/latest.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_RELPATH        = http://cdn.mathjax.org/mathjax/latest
+
+# The MATHJAX_EXTENSIONS tag can be used to specify one or more MathJax
+# extension names that should be enabled during MathJax rendering. For example
+# MATHJAX_EXTENSIONS = TeX/AMSmath TeX/AMSsymbols
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_EXTENSIONS     =
+
+# The MATHJAX_CODEFILE tag can be used to specify a file with javascript pieces
+# of code that will be used on startup of the MathJax code. See the MathJax site
+# (see: http://docs.mathjax.org/en/latest/output.html) for more details. For an
+# example see the documentation.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_CODEFILE       =
+
+# When the SEARCHENGINE tag is enabled doxygen will generate a search box for
+# the HTML output. The underlying search engine uses javascript and DHTML and
+# should work on any modern browser. Note that when using HTML help
+# (GENERATE_HTMLHELP), Qt help (GENERATE_QHP), or docsets (GENERATE_DOCSET)
+# there is already a search function so this one should typically be disabled.
+# For large projects the javascript based search engine can be slow, then
+# enabling SERVER_BASED_SEARCH may provide a better solution. It is possible to
+# search using the keyboard; to jump to the search box use <access key> + S
+# (what the <access key> is depends on the OS and browser, but it is typically
+# <CTRL>, <ALT>/<option>, or both). Inside the search box use the <cursor down
+# key> to jump into the search results window, the results can be navigated
+# using the <cursor keys>. Press <Enter> to select an item or <escape> to cancel
+# the search. The filter options can be selected when the cursor is inside the
+# search box by pressing <Shift>+<cursor down>. Also here use the <cursor keys>
+# to select a filter and <Enter> or <escape> to activate or cancel the filter
+# option.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+SEARCHENGINE           = YES
+
+# When the SERVER_BASED_SEARCH tag is enabled the search engine will be
+# implemented using a web server instead of a web client using Javascript. There
+# are two flavours of web server based searching depending on the
+# EXTERNAL_SEARCH setting. When disabled, doxygen will generate a PHP script for
+# searching and an index file used by the script. When EXTERNAL_SEARCH is
+# enabled the indexing and searching needs to be provided by external tools. See
+# the section "External Indexing and Searching" for details.
+# The default value is: NO.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+SERVER_BASED_SEARCH    = NO
+
+# When EXTERNAL_SEARCH tag is enabled doxygen will no longer generate the PHP
+# script for searching. Instead the search results are written to an XML file
+# which needs to be processed by an external indexer. Doxygen will invoke an
+# external search engine pointed to by the SEARCHENGINE_URL option to obtain the
+# search results.
+#
+# Doxygen ships with an example indexer ( doxyindexer) and search engine
+# (doxysearch.cgi) which are based on the open source search engine library
+# Xapian (see: http://xapian.org/).
+#
+# See the section "External Indexing and Searching" for details.
+# The default value is: NO.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+EXTERNAL_SEARCH        = NO
+
+# The SEARCHENGINE_URL should point to a search engine hosted by a web server
+# which will return the search results when EXTERNAL_SEARCH is enabled.
+#
+# Doxygen ships with an example indexer ( doxyindexer) and search engine
+# (doxysearch.cgi) which are based on the open source search engine library
+# Xapian (see: http://xapian.org/). See the section "External Indexing and
+# Searching" for details.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+SEARCHENGINE_URL       =
+
+# When SERVER_BASED_SEARCH and EXTERNAL_SEARCH are both enabled the unindexed
+# search data is written to a file for indexing by an external tool. With the
+# SEARCHDATA_FILE tag the name of this file can be specified.
+# The default file is: searchdata.xml.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+SEARCHDATA_FILE        = searchdata.xml
+
+# When SERVER_BASED_SEARCH and EXTERNAL_SEARCH are both enabled the
+# EXTERNAL_SEARCH_ID tag can be used as an identifier for the project. This is
+# useful in combination with EXTRA_SEARCH_MAPPINGS to search through multiple
+# projects and redirect the results back to the right project.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+EXTERNAL_SEARCH_ID     =
+
+# The EXTRA_SEARCH_MAPPINGS tag can be used to enable searching through doxygen
+# projects other than the one defined by this configuration file, but that are
+# all added to the same external search index. Each project needs to have a
+# unique id set via EXTERNAL_SEARCH_ID. The search mapping then maps the id of
+# to a relative location where the documentation can be found. The format is:
+# EXTRA_SEARCH_MAPPINGS = tagname1=loc1 tagname2=loc2 ...
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+EXTRA_SEARCH_MAPPINGS  =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the LaTeX output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_LATEX tag is set to YES doxygen will generate LaTeX output.
+# The default value is: YES.
+
+GENERATE_LATEX         = YES
+
+# The LATEX_OUTPUT tag is used to specify where the LaTeX docs will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: latex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_OUTPUT           = latex
+
+# The LATEX_CMD_NAME tag can be used to specify the LaTeX command name to be
+# invoked.
+#
+# Note that when enabling USE_PDFLATEX this option is only used for generating
+# bitmaps for formulas in the HTML output, but not in the Makefile that is
+# written to the output directory.
+# The default file is: latex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_CMD_NAME         = latex
+
+# The MAKEINDEX_CMD_NAME tag can be used to specify the command name to generate
+# index for LaTeX.
+# The default file is: makeindex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+MAKEINDEX_CMD_NAME     = makeindex
+
+# If the COMPACT_LATEX tag is set to YES doxygen generates more compact LaTeX
+# documents. This may be useful for small projects and may help to save some
+# trees in general.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+COMPACT_LATEX          = NO
+
+# The PAPER_TYPE tag can be used to set the paper type that is used by the
+# printer.
+# Possible values are: a4 (210 x 297 mm), letter (8.5 x 11 inches), legal (8.5 x
+# 14 inches) and executive (7.25 x 10.5 inches).
+# The default value is: a4.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+PAPER_TYPE             = a4
+
+# The EXTRA_PACKAGES tag can be used to specify one or more LaTeX package names
+# that should be included in the LaTeX output. To get the times font for
+# instance you can specify
+# EXTRA_PACKAGES=times
+# If left blank no extra packages will be included.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+EXTRA_PACKAGES         =
+
+# The LATEX_HEADER tag can be used to specify a personal LaTeX header for the
+# generated LaTeX document. The header should contain everything until the first
+# chapter. If it is left blank doxygen will generate a standard header. See
+# section "Doxygen usage" for information on how to let doxygen write the
+# default header to a separate file.
+#
+# Note: Only use a user-defined header if you know what you are doing! The
+# following commands have a special meaning inside the header: $title,
+# $datetime, $date, $doxygenversion, $projectname, $projectnumber. Doxygen will
+# replace them by respectively the title of the page, the current date and time,
+# only the current date, the version number of doxygen, the project name (see
+# PROJECT_NAME), or the project number (see PROJECT_NUMBER).
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_HEADER           =
+
+# The LATEX_FOOTER tag can be used to specify a personal LaTeX footer for the
+# generated LaTeX document. The footer should contain everything after the last
+# chapter. If it is left blank doxygen will generate a standard footer.
+#
+# Note: Only use a user-defined footer if you know what you are doing!
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_FOOTER           =
+
+# The LATEX_EXTRA_FILES tag can be used to specify one or more extra images or
+# other source files which should be copied to the LATEX_OUTPUT output
+# directory. Note that the files will be copied as-is; there are no commands or
+# markers available.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_EXTRA_FILES      =
+
+# If the PDF_HYPERLINKS tag is set to YES, the LaTeX that is generated is
+# prepared for conversion to PDF (using ps2pdf or pdflatex). The PDF file will
+# contain links (just like the HTML output) instead of page references. This
+# makes the output suitable for online browsing using a PDF viewer.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+PDF_HYPERLINKS         = YES
+
+# If the LATEX_PDFLATEX tag is set to YES, doxygen will use pdflatex to generate
+# the PDF file directly from the LaTeX files. Set this option to YES to get a
+# higher quality PDF documentation.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+USE_PDFLATEX           = YES
+
+# If the LATEX_BATCHMODE tag is set to YES, doxygen will add the \batchmode
+# command to the generated LaTeX files. This will instruct LaTeX to keep running
+# if errors occur, instead of asking the user for help. This option is also used
+# when generating formulas in HTML.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_BATCHMODE        = NO
+
+# If the LATEX_HIDE_INDICES tag is set to YES then doxygen will not include the
+# index chapters (such as File Index, Compound Index, etc.) in the output.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_HIDE_INDICES     = NO
+
+# If the LATEX_SOURCE_CODE tag is set to YES then doxygen will include source
+# code with syntax highlighting in the LaTeX output.
+#
+# Note that which sources are shown also depends on other settings such as
+# SOURCE_BROWSER.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_SOURCE_CODE      = NO
+
+# The LATEX_BIB_STYLE tag can be used to specify the style to use for the
+# bibliography, e.g. plainnat, or ieeetr. See
+# http://en.wikipedia.org/wiki/BibTeX and \cite for more info.
+# The default value is: plain.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_BIB_STYLE        = plain
+
+#---------------------------------------------------------------------------
+# Configuration options related to the RTF output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_RTF tag is set to YES doxygen will generate RTF output. The
+# RTF output is optimized for Word 97 and may not look too pretty with other RTF
+# readers/editors.
+# The default value is: NO.
+
+GENERATE_RTF           = NO
+
+# The RTF_OUTPUT tag is used to specify where the RTF docs will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: rtf.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_OUTPUT             = rtf
+
+# If the COMPACT_RTF tag is set to YES doxygen generates more compact RTF
+# documents. This may be useful for small projects and may help to save some
+# trees in general.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+COMPACT_RTF            = NO
+
+# If the RTF_HYPERLINKS tag is set to YES, the RTF that is generated will
+# contain hyperlink fields. The RTF file will contain links (just like the HTML
+# output) instead of page references. This makes the output suitable for online
+# browsing using Word or some other Word compatible readers that support those
+# fields.
+#
+# Note: WordPad (write) and others do not support links.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_HYPERLINKS         = NO
+
+# Load stylesheet definitions from file. Syntax is similar to doxygen's config
+# file, i.e. a series of assignments. You only have to provide replacements,
+# missing definitions are set to their default value.
+#
+# See also section "Doxygen usage" for information on how to generate the
+# default style sheet that doxygen normally uses.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_STYLESHEET_FILE    =
+
+# Set optional variables used in the generation of an RTF document. Syntax is
+# similar to doxygen's config file. A template extensions file can be generated
+# using doxygen -e rtf extensionFile.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_EXTENSIONS_FILE    =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the man page output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_MAN tag is set to YES doxygen will generate man pages for
+# classes and files.
+# The default value is: NO.
+
+GENERATE_MAN           = NO
+
+# The MAN_OUTPUT tag is used to specify where the man pages will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it. A directory man3 will be created inside the directory specified by
+# MAN_OUTPUT.
+# The default directory is: man.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_OUTPUT             = man
+
+# The MAN_EXTENSION tag determines the extension that is added to the generated
+# man pages. In case the manual section does not start with a number, the number
+# 3 is prepended. The dot (.) at the beginning of the MAN_EXTENSION tag is
+# optional.
+# The default value is: .3.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_EXTENSION          = .3
+
+# If the MAN_LINKS tag is set to YES and doxygen generates man output, then it
+# will generate one additional man file for each entity documented in the real
+# man page(s). These additional files only source the real man page, but without
+# them the man command would be unable to find the correct page.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_LINKS              = NO
+
+#---------------------------------------------------------------------------
+# Configuration options related to the XML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_XML tag is set to YES doxygen will generate an XML file that
+# captures the structure of the code including all documentation.
+# The default value is: NO.
+
+GENERATE_XML           = NO
+
+# The XML_OUTPUT tag is used to specify where the XML pages will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: xml.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_OUTPUT             = xml
+
+# The XML_SCHEMA tag can be used to specify a XML schema, which can be used by a
+# validating XML parser to check the syntax of the XML files.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_SCHEMA             =
+
+# The XML_DTD tag can be used to specify a XML DTD, which can be used by a
+# validating XML parser to check the syntax of the XML files.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_DTD                =
+
+# If the XML_PROGRAMLISTING tag is set to YES doxygen will dump the program
+# listings (including syntax highlighting and cross-referencing information) to
+# the XML output. Note that enabling this will significantly increase the size
+# of the XML output.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_PROGRAMLISTING     = YES
+
+#---------------------------------------------------------------------------
+# Configuration options related to the DOCBOOK output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_DOCBOOK tag is set to YES doxygen will generate Docbook files
+# that can be used to generate PDF.
+# The default value is: NO.
+
+GENERATE_DOCBOOK       = NO
+
+# The DOCBOOK_OUTPUT tag is used to specify where the Docbook pages will be put.
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be put in
+# front of it.
+# The default directory is: docbook.
+# This tag requires that the tag GENERATE_DOCBOOK is set to YES.
+
+DOCBOOK_OUTPUT         = docbook
+
+#---------------------------------------------------------------------------
+# Configuration options for the AutoGen Definitions output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_AUTOGEN_DEF tag is set to YES doxygen will generate an AutoGen
+# Definitions (see http://autogen.sf.net) file that captures the structure of
+# the code including all documentation. Note that this feature is still
+# experimental and incomplete at the moment.
+# The default value is: NO.
+
+GENERATE_AUTOGEN_DEF   = NO
+
+#---------------------------------------------------------------------------
+# Configuration options related to the Perl module output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_PERLMOD tag is set to YES doxygen will generate a Perl module
+# file that captures the structure of the code including all documentation.
+#
+# Note that this feature is still experimental and incomplete at the moment.
+# The default value is: NO.
+
+GENERATE_PERLMOD       = NO
+
+# If the PERLMOD_LATEX tag is set to YES doxygen will generate the necessary
+# Makefile rules, Perl scripts and LaTeX code to be able to generate PDF and DVI
+# output from the Perl module output.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_PERLMOD is set to YES.
+
+PERLMOD_LATEX          = NO
+
+# If the PERLMOD_PRETTY tag is set to YES the Perl module output will be nicely
+# formatted so it can be parsed by a human reader. This is useful if you want to
+# understand what is going on. On the other hand, if this tag is set to NO the
+# size of the Perl module output will be much smaller and Perl will parse it
+# just the same.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_PERLMOD is set to YES.
+
+PERLMOD_PRETTY         = YES
+
+# The names of the make variables in the generated doxyrules.make file are
+# prefixed with the string contained in PERLMOD_MAKEVAR_PREFIX. This is useful
+# so different doxyrules.make files included by the same Makefile don't
+# overwrite each other's variables.
+# This tag requires that the tag GENERATE_PERLMOD is set to YES.
+
+PERLMOD_MAKEVAR_PREFIX =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the preprocessor
+#---------------------------------------------------------------------------
+
+# If the ENABLE_PREPROCESSING tag is set to YES doxygen will evaluate all
+# C-preprocessor directives found in the sources and include files.
+# The default value is: YES.
+
+ENABLE_PREPROCESSING   = YES
+
+# If the MACRO_EXPANSION tag is set to YES doxygen will expand all macro names
+# in the source code. If set to NO only conditional compilation will be
+# performed. Macro expansion can be done in a controlled way by setting
+# EXPAND_ONLY_PREDEF to YES.
+# The default value is: NO.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+MACRO_EXPANSION        = NO
+
+# If the EXPAND_ONLY_PREDEF and MACRO_EXPANSION tags are both set to YES then
+# the macro expansion is limited to the macros specified with the PREDEFINED and
+# EXPAND_AS_DEFINED tags.
+# The default value is: NO.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+EXPAND_ONLY_PREDEF     = NO
+
+# If the SEARCH_INCLUDES tag is set to YES the includes files in the
+# INCLUDE_PATH will be searched if a #include is found.
+# The default value is: YES.
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+# and working are Firefox, Chrome, Safari, and Opera.
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+# background. This is disabled by default, because dot on Windows does not seem
+# to support this out of the box.
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+# read).
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+
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+# files in one run (i.e. multiple -o and -T options on the command line). This
+# makes dot run faster, but since only newer versions of dot (>1.8.10) support
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+
+DOT_MULTI_TARGETS      = YES
+
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+# explaining the meaning of the various boxes and arrows in the dot generated
+# graphs.
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+
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+# files that are used to generate the various graphs.
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+
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diff --git a/media/libaaudio/README.md b/media/libaaudio/README.md
new file mode 100644
index 0000000..0c9050e
--- /dev/null
+++ b/media/libaaudio/README.md
@@ -0,0 +1,3 @@
+AAudio input/output API
+
+To generate Doxygen output, run command "doxygen" in this directory.
diff --git a/media/liboboe/examples/Android.mk b/media/libaaudio/examples/Android.mk
similarity index 100%
rename from media/liboboe/examples/Android.mk
rename to media/libaaudio/examples/Android.mk
diff --git a/media/liboboe/examples/write_sine/Android.mk b/media/libaaudio/examples/write_sine/Android.mk
similarity index 100%
rename from media/liboboe/examples/write_sine/Android.mk
rename to media/libaaudio/examples/write_sine/Android.mk
diff --git a/media/liboboe/examples/write_sine/README.md b/media/libaaudio/examples/write_sine/README.md
similarity index 100%
rename from media/liboboe/examples/write_sine/README.md
rename to media/libaaudio/examples/write_sine/README.md
diff --git a/media/liboboe/examples/write_sine/jni/Android.mk b/media/libaaudio/examples/write_sine/jni/Android.mk
similarity index 100%
rename from media/liboboe/examples/write_sine/jni/Android.mk
rename to media/libaaudio/examples/write_sine/jni/Android.mk
diff --git a/media/liboboe/examples/write_sine/jni/Application.mk b/media/libaaudio/examples/write_sine/jni/Application.mk
similarity index 100%
rename from media/liboboe/examples/write_sine/jni/Application.mk
rename to media/libaaudio/examples/write_sine/jni/Application.mk
diff --git a/media/liboboe/examples/write_sine/src/SineGenerator.h b/media/libaaudio/examples/write_sine/src/SineGenerator.h
similarity index 100%
rename from media/liboboe/examples/write_sine/src/SineGenerator.h
rename to media/libaaudio/examples/write_sine/src/SineGenerator.h
diff --git a/media/liboboe/examples/write_sine/src/write_sine.cpp b/media/libaaudio/examples/write_sine/src/write_sine.cpp
similarity index 100%
rename from media/liboboe/examples/write_sine/src/write_sine.cpp
rename to media/libaaudio/examples/write_sine/src/write_sine.cpp
diff --git a/media/liboboe/examples/write_sine/src/write_sine_threaded.cpp b/media/libaaudio/examples/write_sine/src/write_sine_threaded.cpp
similarity index 97%
rename from media/liboboe/examples/write_sine/src/write_sine_threaded.cpp
rename to media/libaaudio/examples/write_sine/src/write_sine_threaded.cpp
index 7cde67b..4ea2807 100644
--- a/media/liboboe/examples/write_sine/src/write_sine_threaded.cpp
+++ b/media/libaaudio/examples/write_sine/src/write_sine_threaded.cpp
@@ -86,10 +86,18 @@
         result = AAudioStream_getSampleRate(mStream, &mFramesPerSecond);
         printf("open() mFramesPerSecond = %d\n", mFramesPerSecond);
         if (result != AAUDIO_OK) goto finish2;
+
         result = AAudioStream_getSamplesPerFrame(mStream, &mSamplesPerFrame);
         printf("open() mSamplesPerFrame = %d\n", mSamplesPerFrame);
         if (result != AAUDIO_OK) goto finish2;
 
+        {
+            aaudio_size_frames_t bufferCapacity;
+            result = AAudioStream_getBufferCapacity(mStream, &bufferCapacity);
+            if (result != AAUDIO_OK) goto finish2;
+            printf("open() got bufferCapacity = %d\n", bufferCapacity);
+        }
+
         // This is the number of frames that are read in one chunk by a DMA controller
         // or a DSP or a mixer.
         result = AAudioStream_getFramesPerBurst(mStream, &mFramesPerBurst);
diff --git a/media/liboboe/examples/write_sine/static/Android.mk b/media/libaaudio/examples/write_sine/static/Android.mk
similarity index 84%
rename from media/liboboe/examples/write_sine/static/Android.mk
rename to media/libaaudio/examples/write_sine/static/Android.mk
index 7c8d17c..139b70a 100644
--- a/media/liboboe/examples/write_sine/static/Android.mk
+++ b/media/libaaudio/examples/write_sine/static/Android.mk
@@ -4,7 +4,7 @@
 LOCAL_MODULE_TAGS := examples
 LOCAL_C_INCLUDES := \
     $(call include-path-for, audio-utils) \
-    frameworks/av/media/liboboe/include
+    frameworks/av/media/libaaudio/include
 
 # TODO reorganize folders to avoid using ../
 LOCAL_SRC_FILES:= ../src/write_sine.cpp
@@ -12,7 +12,7 @@
 LOCAL_SHARED_LIBRARIES := libaudioutils libmedia \
                           libbinder libcutils libutils \
                           libaudioclient liblog libtinyalsa
-LOCAL_STATIC_LIBRARIES := liboboe
+LOCAL_STATIC_LIBRARIES := libaaudio
 
 LOCAL_MODULE := write_sine
 include $(BUILD_EXECUTABLE)
@@ -21,14 +21,14 @@
 LOCAL_MODULE_TAGS := tests
 LOCAL_C_INCLUDES := \
     $(call include-path-for, audio-utils) \
-    frameworks/av/media/liboboe/include
+    frameworks/av/media/libaaudio/include
 
 LOCAL_SRC_FILES:= ../src/write_sine_threaded.cpp
 
 LOCAL_SHARED_LIBRARIES := libaudioutils libmedia \
                           libbinder libcutils libutils \
                           libaudioclient liblog libtinyalsa
-LOCAL_STATIC_LIBRARIES := liboboe
+LOCAL_STATIC_LIBRARIES := libaaudio
 
 LOCAL_MODULE := write_sine_threaded
 include $(BUILD_EXECUTABLE)
diff --git a/media/liboboe/examples/write_sine/static/README.md b/media/libaaudio/examples/write_sine/static/README.md
similarity index 100%
rename from media/liboboe/examples/write_sine/static/README.md
rename to media/libaaudio/examples/write_sine/static/README.md
diff --git a/media/liboboe/include/aaudio/AAudio.h b/media/libaaudio/include/aaudio/AAudio.h
similarity index 90%
rename from media/liboboe/include/aaudio/AAudio.h
rename to media/libaaudio/include/aaudio/AAudio.h
index 7324137..dad5285 100644
--- a/media/liboboe/include/aaudio/AAudio.h
+++ b/media/libaaudio/include/aaudio/AAudio.h
@@ -195,7 +195,7 @@
  * @return AAUDIO_OK or a negative error.
  */
 AAUDIO_API aaudio_result_t AAudioStreamBuilder_setDirection(AAudioStreamBuilder builder,
-                                                      aaudio_direction_t direction);
+                                                            aaudio_direction_t direction);
 
 /**
  * @param builder handle provided by AAudio_createStreamBuilder()
@@ -203,7 +203,31 @@
  * @return AAUDIO_OK or a negative error.
  */
 AAUDIO_API aaudio_result_t AAudioStreamBuilder_getDirection(AAudioStreamBuilder builder,
-                                                      aaudio_direction_t *direction);
+                                                            aaudio_direction_t *direction);
+
+/**
+ * Set the requested maximum buffer capacity in frames.
+ * The final AAudioStream capacity may differ, but will probably be at least this big.
+ *
+ * Default is AAUDIO_UNSPECIFIED.
+ *
+ * @param builder handle provided by AAudio_createStreamBuilder()
+ * @param frames the desired buffer capacity in frames or AAUDIO_UNSPECIFIED
+ * @return AAUDIO_OK or a negative error.
+ */
+AAUDIO_API aaudio_result_t AAudioStreamBuilder_setBufferCapacity(AAudioStreamBuilder builder,
+                                                                 aaudio_size_frames_t frames);
+
+/**
+ * Query the requested maximum buffer capacity in frames that was passed to
+ * AAudioStreamBuilder_setBufferCapacity().
+ *
+ * @param builder handle provided by AAudio_createStreamBuilder()
+ * @param frames pointer to variable to receive the requested buffer capacity
+ * @return AAUDIO_OK or a negative error.
+ */
+AAUDIO_API aaudio_result_t AAudioStreamBuilder_getBufferCapacity(AAudioStreamBuilder builder,
+                                                                 aaudio_size_frames_t *frames);
 
 /**
  * Open a stream based on the options in the StreamBuilder.
@@ -381,7 +405,7 @@
  *
  * @param stream A stream created using AAudioStreamBuilder_openStream().
  * @param periodNanoseconds the estimated period at which the audio thread will need to wake up
- * @param startRoutine your thread entry point
+ * @param threadProc your thread entry point
  * @param arg an argument that will be passed to your thread entry point
  * @return AAUDIO_OK or a negative error.
  */
@@ -422,8 +446,8 @@
  * @return AAUDIO_OK or a negative error
  */
 AAUDIO_API aaudio_result_t AAudioStream_setBufferSize(AAudioStream stream,
-                                                aaudio_size_frames_t requestedFrames,
-                                                aaudio_size_frames_t *actualFrames);
+                                                      aaudio_size_frames_t requestedFrames,
+                                                      aaudio_size_frames_t *actualFrames);
 
 /**
  * Query the maximum number of frames that can be filled without blocking.
@@ -432,7 +456,8 @@
  * @param frames pointer to variable to receive the buffer size
  * @return AAUDIO_OK or a negative error.
  */
-AAUDIO_API aaudio_result_t AAudioStream_getBufferSize(AAudioStream stream, aaudio_size_frames_t *frames);
+AAUDIO_API aaudio_result_t AAudioStream_getBufferSize(AAudioStream stream,
+                                                      aaudio_size_frames_t *frames);
 
 /**
  * Query the number of frames that are read or written by the endpoint at one time.
@@ -441,7 +466,8 @@
  * @param frames pointer to variable to receive the burst size
  * @return AAUDIO_OK or a negative error.
  */
-AAUDIO_API aaudio_result_t AAudioStream_getFramesPerBurst(AAudioStream stream, aaudio_size_frames_t *frames);
+AAUDIO_API aaudio_result_t AAudioStream_getFramesPerBurst(AAudioStream stream,
+                                                          aaudio_size_frames_t *frames);
 
 /**
  * Query maximum buffer capacity in frames.
@@ -450,7 +476,8 @@
  * @param frames pointer to variable to receive the buffer capacity
  * @return AAUDIO_OK or a negative error.
  */
-AAUDIO_API aaudio_result_t AAudioStream_getBufferCapacity(AAudioStream stream, aaudio_size_frames_t *frames);
+AAUDIO_API aaudio_result_t AAudioStream_getBufferCapacity(AAudioStream stream,
+                                                          aaudio_size_frames_t *frames);
 
 /**
  * An XRun is an Underrun or an Overrun.
@@ -472,7 +499,8 @@
  * @param sampleRate pointer to variable to receive the actual sample rate
  * @return AAUDIO_OK or a negative error.
  */
-AAUDIO_API aaudio_result_t AAudioStream_getSampleRate(AAudioStream stream, aaudio_sample_rate_t *sampleRate);
+AAUDIO_API aaudio_result_t AAudioStream_getSampleRate(AAudioStream stream,
+                                                      aaudio_sample_rate_t *sampleRate);
 
 /**
  * The samplesPerFrame is also known as channelCount.
@@ -481,21 +509,24 @@
  * @param samplesPerFrame pointer to variable to receive the actual samples per frame
  * @return AAUDIO_OK or a negative error.
  */
-AAUDIO_API aaudio_result_t AAudioStream_getSamplesPerFrame(AAudioStream stream, int32_t *samplesPerFrame);
+AAUDIO_API aaudio_result_t AAudioStream_getSamplesPerFrame(AAudioStream stream,
+                                                           int32_t *samplesPerFrame);
 
 /**
  * @param stream handle provided by AAudioStreamBuilder_openStream()
  * @param deviceId pointer to variable to receive the actual device ID
  * @return AAUDIO_OK or a negative error.
  */
-AAUDIO_API aaudio_result_t AAudioStream_getDeviceId(AAudioStream stream, aaudio_device_id_t *deviceId);
+AAUDIO_API aaudio_result_t AAudioStream_getDeviceId(AAudioStream stream,
+                                                    aaudio_device_id_t *deviceId);
 
 /**
  * @param stream handle provided by AAudioStreamBuilder_openStream()
  * @param format pointer to variable to receive the actual data format
  * @return AAUDIO_OK or a negative error.
  */
-AAUDIO_API aaudio_result_t AAudioStream_getFormat(AAudioStream stream, aaudio_audio_format_t *format);
+AAUDIO_API aaudio_result_t AAudioStream_getFormat(AAudioStream stream,
+                                                  aaudio_audio_format_t *format);
 
 /**
  * Provide actual sharing mode.
@@ -511,7 +542,8 @@
  * @param direction pointer to a variable to be set to the current direction.
  * @return AAUDIO_OK or a negative error.
  */
-AAUDIO_API aaudio_result_t AAudioStream_getDirection(AAudioStream stream, aaudio_direction_t *direction);
+AAUDIO_API aaudio_result_t AAudioStream_getDirection(AAudioStream stream,
+                                                     aaudio_direction_t *direction);
 
 /**
  * Passes back the number of frames that have been written since the stream was created.
@@ -538,7 +570,8 @@
  * @param frames pointer to variable to receive the frames written
  * @return AAUDIO_OK or a negative error.
  */
-AAUDIO_API aaudio_result_t AAudioStream_getFramesRead(AAudioStream stream, aaudio_position_frames_t *frames);
+AAUDIO_API aaudio_result_t AAudioStream_getFramesRead(AAudioStream stream,
+                                                      aaudio_position_frames_t *frames);
 
 /**
  * Passes back the time at which a particular frame was presented.
diff --git a/media/liboboe/include/aaudio/AAudioDefinitions.h b/media/libaaudio/include/aaudio/AAudioDefinitions.h
similarity index 100%
rename from media/liboboe/include/aaudio/AAudioDefinitions.h
rename to media/libaaudio/include/aaudio/AAudioDefinitions.h
diff --git a/media/liboboe/include/aaudio/NOTICE b/media/libaaudio/include/aaudio/NOTICE
similarity index 100%
rename from media/liboboe/include/aaudio/NOTICE
rename to media/libaaudio/include/aaudio/NOTICE
diff --git a/media/liboboe/include/aaudio/README.md b/media/libaaudio/include/aaudio/README.md
similarity index 100%
rename from media/liboboe/include/aaudio/README.md
rename to media/libaaudio/include/aaudio/README.md
diff --git a/media/liboboe/liboboe.map.txt b/media/libaaudio/libaaudio.map.txt
similarity index 100%
rename from media/liboboe/liboboe.map.txt
rename to media/libaaudio/libaaudio.map.txt
diff --git a/media/liboboe/scripts/convert_oboe_aaudio.sh b/media/libaaudio/scripts/convert_oboe_aaudio.sh
similarity index 100%
rename from media/liboboe/scripts/convert_oboe_aaudio.sh
rename to media/libaaudio/scripts/convert_oboe_aaudio.sh
diff --git a/media/liboboe/scripts/oboe_to_aaudio.sed b/media/libaaudio/scripts/oboe_to_aaudio.sed
similarity index 100%
rename from media/liboboe/scripts/oboe_to_aaudio.sed
rename to media/libaaudio/scripts/oboe_to_aaudio.sed
diff --git a/media/liboboe/scripts/revert_all_aaudio.sh b/media/libaaudio/scripts/revert_all_aaudio.sh
similarity index 100%
rename from media/liboboe/scripts/revert_all_aaudio.sh
rename to media/libaaudio/scripts/revert_all_aaudio.sh
diff --git a/media/liboboe/src/Android.mk b/media/libaaudio/src/Android.mk
similarity index 91%
rename from media/liboboe/src/Android.mk
rename to media/libaaudio/src/Android.mk
index a508be3..a016b49 100644
--- a/media/liboboe/src/Android.mk
+++ b/media/libaaudio/src/Android.mk
@@ -5,18 +5,18 @@
 # TODO Remove this target later, when not needed.
 include $(CLEAR_VARS)
 
-LOCAL_MODULE := liboboe
+LOCAL_MODULE := libaaudio
 LOCAL_MODULE_TAGS := optional
 
-LIBAAUDIO_DIR := $(TOP)/frameworks/av/media/liboboe
+LIBAAUDIO_DIR := $(TOP)/frameworks/av/media/libaaudio
 LIBAAUDIO_SRC_DIR := $(LIBAAUDIO_DIR)/src
 
 LOCAL_C_INCLUDES := \
     $(call include-path-for, audio-utils) \
     frameworks/native/include \
     system/core/base/include \
-    frameworks/native/media/liboboe/include/include \
-    frameworks/av/media/liboboe/include \
+    frameworks/native/media/libaaudio/include/include \
+    frameworks/av/media/libaaudio/include \
     frameworks/native/include \
     $(LOCAL_PATH) \
     $(LOCAL_PATH)/binding \
@@ -59,15 +59,15 @@
 # ======================= SHARED LIBRARY ==========================
 include $(CLEAR_VARS)
 
-LOCAL_MODULE := liboboe
+LOCAL_MODULE := libaaudio
 LOCAL_MODULE_TAGS := optional
 
 LOCAL_C_INCLUDES := \
     $(call include-path-for, audio-utils) \
     frameworks/native/include \
     system/core/base/include \
-    frameworks/native/media/liboboe/include/include \
-    frameworks/av/media/liboboe/include \
+    frameworks/native/media/libaaudio/include/include \
+    frameworks/av/media/libaaudio/include \
     $(LOCAL_PATH) \
     $(LOCAL_PATH)/binding \
     $(LOCAL_PATH)/client \
diff --git a/media/liboboe/src/binding/AAudioServiceDefinitions.h b/media/libaaudio/src/binding/AAudioServiceDefinitions.h
similarity index 100%
rename from media/liboboe/src/binding/AAudioServiceDefinitions.h
rename to media/libaaudio/src/binding/AAudioServiceDefinitions.h
diff --git a/media/liboboe/src/binding/AAudioServiceMessage.h b/media/libaaudio/src/binding/AAudioServiceMessage.h
similarity index 100%
rename from media/liboboe/src/binding/AAudioServiceMessage.h
rename to media/libaaudio/src/binding/AAudioServiceMessage.h
diff --git a/media/liboboe/src/binding/AAudioStreamConfiguration.cpp b/media/libaaudio/src/binding/AAudioStreamConfiguration.cpp
similarity index 84%
rename from media/liboboe/src/binding/AAudioStreamConfiguration.cpp
rename to media/libaaudio/src/binding/AAudioStreamConfiguration.cpp
index 1cb2bfa..fe3a59f 100644
--- a/media/liboboe/src/binding/AAudioStreamConfiguration.cpp
+++ b/media/libaaudio/src/binding/AAudioStreamConfiguration.cpp
@@ -39,6 +39,7 @@
     parcel->writeInt32(mSampleRate);
     parcel->writeInt32(mSamplesPerFrame);
     parcel->writeInt32((int32_t) mAudioFormat);
+    parcel->writeInt32(mBufferCapacity);
     return NO_ERROR; // TODO check for errors above
 }
 
@@ -49,6 +50,7 @@
     parcel->readInt32(&mSamplesPerFrame);
     parcel->readInt32(&temp);
     mAudioFormat = (aaudio_audio_format_t) temp;
+    parcel->readInt32(&mBufferCapacity);
     return NO_ERROR; // TODO check for errors above
 }
 
@@ -74,11 +76,17 @@
         ALOGE("AAudioStreamConfiguration.validate() invalid audioFormat = %d", mAudioFormat);
         return AAUDIO_ERROR_INTERNAL;
     }
+
+    if (mBufferCapacity < 0) {
+        ALOGE("AAudioStreamConfiguration.validate() invalid mBufferCapacity = %d", mBufferCapacity);
+        return AAUDIO_ERROR_INTERNAL;
+    }
     return AAUDIO_OK;
 }
 
 void AAudioStreamConfiguration::dump() {
-    ALOGD("AAudioStreamConfiguration mSampleRate = %d -----", mSampleRate);
+    ALOGD("AAudioStreamConfiguration mSampleRate      = %d -----", mSampleRate);
     ALOGD("AAudioStreamConfiguration mSamplesPerFrame = %d", mSamplesPerFrame);
-    ALOGD("AAudioStreamConfiguration mAudioFormat = %d", (int)mAudioFormat);
+    ALOGD("AAudioStreamConfiguration mAudioFormat     = %d", (int)mAudioFormat);
+    ALOGD("AAudioStreamConfiguration mBufferCapacity  = %d", mBufferCapacity);
 }
diff --git a/media/liboboe/src/binding/AAudioStreamConfiguration.h b/media/libaaudio/src/binding/AAudioStreamConfiguration.h
similarity index 87%
rename from media/liboboe/src/binding/AAudioStreamConfiguration.h
rename to media/libaaudio/src/binding/AAudioStreamConfiguration.h
index ef21443..efcdae8 100644
--- a/media/liboboe/src/binding/AAudioStreamConfiguration.h
+++ b/media/libaaudio/src/binding/AAudioStreamConfiguration.h
@@ -66,6 +66,14 @@
         mAudioFormat = audioFormat;
     }
 
+    aaudio_size_frames_t getBufferCapacity() const {
+        return mBufferCapacity;
+    }
+
+    void setBufferCapacity(aaudio_size_frames_t frames) {
+        mBufferCapacity = frames;
+    }
+
     virtual status_t writeToParcel(Parcel* parcel) const override;
 
     virtual status_t readFromParcel(const Parcel* parcel) override;
@@ -77,8 +85,9 @@
 protected:
     aaudio_device_id_t    mDeviceId        = AAUDIO_DEVICE_UNSPECIFIED;
     aaudio_sample_rate_t  mSampleRate      = AAUDIO_UNSPECIFIED;
-    int32_t             mSamplesPerFrame = AAUDIO_UNSPECIFIED;
+    int32_t               mSamplesPerFrame = AAUDIO_UNSPECIFIED;
     aaudio_audio_format_t mAudioFormat     = AAUDIO_FORMAT_UNSPECIFIED;
+    aaudio_size_frames_t  mBufferCapacity  = AAUDIO_UNSPECIFIED;
 };
 
 } /* namespace aaudio */
diff --git a/media/liboboe/src/binding/AAudioStreamRequest.cpp b/media/libaaudio/src/binding/AAudioStreamRequest.cpp
similarity index 100%
rename from media/liboboe/src/binding/AAudioStreamRequest.cpp
rename to media/libaaudio/src/binding/AAudioStreamRequest.cpp
diff --git a/media/liboboe/src/binding/AAudioStreamRequest.h b/media/libaaudio/src/binding/AAudioStreamRequest.h
similarity index 100%
rename from media/liboboe/src/binding/AAudioStreamRequest.h
rename to media/libaaudio/src/binding/AAudioStreamRequest.h
diff --git a/media/liboboe/src/binding/AudioEndpointParcelable.cpp b/media/libaaudio/src/binding/AudioEndpointParcelable.cpp
similarity index 100%
rename from media/liboboe/src/binding/AudioEndpointParcelable.cpp
rename to media/libaaudio/src/binding/AudioEndpointParcelable.cpp
diff --git a/media/liboboe/src/binding/AudioEndpointParcelable.h b/media/libaaudio/src/binding/AudioEndpointParcelable.h
similarity index 100%
rename from media/liboboe/src/binding/AudioEndpointParcelable.h
rename to media/libaaudio/src/binding/AudioEndpointParcelable.h
diff --git a/media/liboboe/src/binding/IAAudioService.cpp b/media/libaaudio/src/binding/IAAudioService.cpp
similarity index 100%
rename from media/liboboe/src/binding/IAAudioService.cpp
rename to media/libaaudio/src/binding/IAAudioService.cpp
diff --git a/media/liboboe/src/binding/IAAudioService.h b/media/libaaudio/src/binding/IAAudioService.h
similarity index 93%
rename from media/liboboe/src/binding/IAAudioService.h
rename to media/libaaudio/src/binding/IAAudioService.h
index 7d2fd29..f3b297e 100644
--- a/media/liboboe/src/binding/IAAudioService.h
+++ b/media/libaaudio/src/binding/IAAudioService.h
@@ -38,6 +38,11 @@
 
     DECLARE_META_INTERFACE(AAudioService);
 
+    /**
+     * @param request info needed to create the stream
+     * @param configuration contains information about the created stream
+     * @return handle to the stream or a negative error
+     */
     virtual aaudio_handle_t openStream(aaudio::AAudioStreamRequest &request,
                                      aaudio::AAudioStreamConfiguration &configuration) = 0;
 
diff --git a/media/liboboe/src/binding/RingBufferParcelable.cpp b/media/libaaudio/src/binding/RingBufferParcelable.cpp
similarity index 100%
rename from media/liboboe/src/binding/RingBufferParcelable.cpp
rename to media/libaaudio/src/binding/RingBufferParcelable.cpp
diff --git a/media/liboboe/src/binding/RingBufferParcelable.h b/media/libaaudio/src/binding/RingBufferParcelable.h
similarity index 100%
rename from media/liboboe/src/binding/RingBufferParcelable.h
rename to media/libaaudio/src/binding/RingBufferParcelable.h
diff --git a/media/liboboe/src/binding/SharedMemoryParcelable.cpp b/media/libaaudio/src/binding/SharedMemoryParcelable.cpp
similarity index 96%
rename from media/liboboe/src/binding/SharedMemoryParcelable.cpp
rename to media/libaaudio/src/binding/SharedMemoryParcelable.cpp
index 277a992..1102dec 100644
--- a/media/liboboe/src/binding/SharedMemoryParcelable.cpp
+++ b/media/libaaudio/src/binding/SharedMemoryParcelable.cpp
@@ -87,9 +87,9 @@
 }
 
 aaudio_result_t SharedMemoryParcelable::validate() {
-    if (mSizeInBytes < 0 || mSizeInBytes >= MAX_MMAP_SIZE) {
+    if (mSizeInBytes < 0 || mSizeInBytes >= MAX_MMAP_SIZE_BYTES) {
         ALOGE("SharedMemoryParcelable invalid mSizeInBytes = %d", mSizeInBytes);
-        return AAUDIO_ERROR_INTERNAL;
+        return AAUDIO_ERROR_OUT_OF_RANGE;
     }
     if (mSizeInBytes > 0) {
         if (mFd == -1) {
diff --git a/media/liboboe/src/binding/SharedMemoryParcelable.h b/media/libaaudio/src/binding/SharedMemoryParcelable.h
similarity index 94%
rename from media/liboboe/src/binding/SharedMemoryParcelable.h
rename to media/libaaudio/src/binding/SharedMemoryParcelable.h
index 5768ea9..7e0bf1a 100644
--- a/media/liboboe/src/binding/SharedMemoryParcelable.h
+++ b/media/libaaudio/src/binding/SharedMemoryParcelable.h
@@ -31,8 +31,8 @@
 
 // Arbitrary limits for sanity checks. TODO remove after debugging.
 #define MAX_SHARED_MEMORIES (32)
-#define MAX_MMAP_OFFSET (32 * 1024)
-#define MAX_MMAP_SIZE (32 * 1024)
+#define MAX_MMAP_OFFSET_BYTES (32 * 1024 * 8)
+#define MAX_MMAP_SIZE_BYTES (32 * 1024 * 8)
 
 /**
  * This is a parcelable description of a shared memory referenced by a file descriptor.
diff --git a/media/liboboe/src/binding/SharedRegionParcelable.cpp b/media/libaaudio/src/binding/SharedRegionParcelable.cpp
similarity index 95%
rename from media/liboboe/src/binding/SharedRegionParcelable.cpp
rename to media/libaaudio/src/binding/SharedRegionParcelable.cpp
index a3e0111..8ca0023 100644
--- a/media/liboboe/src/binding/SharedRegionParcelable.cpp
+++ b/media/libaaudio/src/binding/SharedRegionParcelable.cpp
@@ -75,14 +75,14 @@
 }
 
 aaudio_result_t SharedRegionParcelable::validate() {
-    if (mSizeInBytes < 0 || mSizeInBytes >= MAX_MMAP_SIZE) {
+    if (mSizeInBytes < 0 || mSizeInBytes >= MAX_MMAP_SIZE_BYTES) {
         ALOGE("SharedRegionParcelable invalid mSizeInBytes = %d", mSizeInBytes);
-        return AAUDIO_ERROR_INTERNAL;
+        return AAUDIO_ERROR_OUT_OF_RANGE;
     }
     if (mSizeInBytes > 0) {
-        if (mOffsetInBytes < 0 || mOffsetInBytes >= MAX_MMAP_OFFSET) {
+        if (mOffsetInBytes < 0 || mOffsetInBytes >= MAX_MMAP_OFFSET_BYTES) {
             ALOGE("SharedRegionParcelable invalid mOffsetInBytes = %d", mOffsetInBytes);
-            return AAUDIO_ERROR_INTERNAL;
+            return AAUDIO_ERROR_OUT_OF_RANGE;
         }
         if (mSharedMemoryIndex < 0 || mSharedMemoryIndex >= MAX_SHARED_MEMORIES) {
             ALOGE("SharedRegionParcelable invalid mSharedMemoryIndex = %d", mSharedMemoryIndex);
diff --git a/media/liboboe/src/binding/SharedRegionParcelable.h b/media/libaaudio/src/binding/SharedRegionParcelable.h
similarity index 100%
rename from media/liboboe/src/binding/SharedRegionParcelable.h
rename to media/libaaudio/src/binding/SharedRegionParcelable.h
diff --git a/media/liboboe/src/client/AudioEndpoint.cpp b/media/libaaudio/src/client/AudioEndpoint.cpp
similarity index 100%
rename from media/liboboe/src/client/AudioEndpoint.cpp
rename to media/libaaudio/src/client/AudioEndpoint.cpp
diff --git a/media/liboboe/src/client/AudioEndpoint.h b/media/libaaudio/src/client/AudioEndpoint.h
similarity index 100%
rename from media/liboboe/src/client/AudioEndpoint.h
rename to media/libaaudio/src/client/AudioEndpoint.h
diff --git a/media/liboboe/src/client/AudioStreamInternal.cpp b/media/libaaudio/src/client/AudioStreamInternal.cpp
similarity index 99%
rename from media/liboboe/src/client/AudioStreamInternal.cpp
rename to media/libaaudio/src/client/AudioStreamInternal.cpp
index 8d7e93f..19f2300 100644
--- a/media/liboboe/src/client/AudioStreamInternal.cpp
+++ b/media/libaaudio/src/client/AudioStreamInternal.cpp
@@ -33,6 +33,7 @@
 #include "binding/IAAudioService.h"
 #include "binding/AAudioServiceMessage.h"
 
+#include "core/AudioStreamBuilder.h"
 #include "AudioStreamInternal.h"
 
 #define LOG_TIMESTAMPS   0
@@ -110,6 +111,7 @@
     request.getConfiguration().setSampleRate(getSampleRate());
     request.getConfiguration().setSamplesPerFrame(getSamplesPerFrame());
     request.getConfiguration().setAudioFormat(getFormat());
+    request.getConfiguration().setBufferCapacity(builder.getBufferCapacity());
     request.dump();
 
     mServiceStreamHandle = service->openStream(request, configuration);
@@ -142,7 +144,6 @@
         // Configure endpoint based on descriptor.
         mAudioEndpoint.configure(&mEndpointDescriptor);
 
-
         mFramesPerBurst = mEndpointDescriptor.downDataQueueDescriptor.framesPerBurst;
         assert(mFramesPerBurst >= 16);
         assert(mEndpointDescriptor.downDataQueueDescriptor.capacityInFrames < 10 * 1024);
diff --git a/media/liboboe/src/client/AudioStreamInternal.h b/media/libaaudio/src/client/AudioStreamInternal.h
similarity index 100%
rename from media/liboboe/src/client/AudioStreamInternal.h
rename to media/libaaudio/src/client/AudioStreamInternal.h
diff --git a/media/liboboe/src/client/IsochronousClockModel.cpp b/media/libaaudio/src/client/IsochronousClockModel.cpp
similarity index 100%
rename from media/liboboe/src/client/IsochronousClockModel.cpp
rename to media/libaaudio/src/client/IsochronousClockModel.cpp
diff --git a/media/liboboe/src/client/IsochronousClockModel.h b/media/libaaudio/src/client/IsochronousClockModel.h
similarity index 100%
rename from media/liboboe/src/client/IsochronousClockModel.h
rename to media/libaaudio/src/client/IsochronousClockModel.h
diff --git a/media/liboboe/src/core/AAudioAudio.cpp b/media/libaaudio/src/core/AAudioAudio.cpp
similarity index 96%
rename from media/liboboe/src/core/AAudioAudio.cpp
rename to media/libaaudio/src/core/AAudioAudio.cpp
index c1fa7cf..04dbda1 100644
--- a/media/liboboe/src/core/AAudioAudio.cpp
+++ b/media/libaaudio/src/core/AAudioAudio.cpp
@@ -256,6 +256,26 @@
     return AAUDIO_OK;
 }
 
+AAUDIO_API aaudio_result_t AAudioStreamBuilder_setBufferCapacity(AAudioStreamBuilder builder,
+                                                        aaudio_size_frames_t frames)
+{
+    AudioStreamBuilder *streamBuilder = CONVERT_BUILDER_HANDLE_OR_RETURN();
+    if (frames < 0) {
+        return AAUDIO_ERROR_ILLEGAL_ARGUMENT;
+    } else {
+        streamBuilder->setBufferCapacity(frames);
+        return AAUDIO_OK;
+    }
+}
+
+AAUDIO_API aaudio_result_t AAudioStreamBuilder_getBufferCapacity(AAudioStreamBuilder builder,
+                                                        aaudio_size_frames_t *frames)
+{
+    AudioStreamBuilder *streamBuilder = COMMON_GET_FROM_BUILDER_OR_RETURN(frames);
+    *frames = streamBuilder->getBufferCapacity();
+    return AAUDIO_OK;
+}
+
 static aaudio_result_t  AAudioInternal_openStream(AudioStreamBuilder *streamBuilder,
                                               AAudioStream *streamPtr)
 {
diff --git a/media/liboboe/src/core/AudioStream.cpp b/media/libaaudio/src/core/AudioStream.cpp
similarity index 100%
rename from media/liboboe/src/core/AudioStream.cpp
rename to media/libaaudio/src/core/AudioStream.cpp
diff --git a/media/liboboe/src/core/AudioStream.h b/media/libaaudio/src/core/AudioStream.h
similarity index 100%
rename from media/liboboe/src/core/AudioStream.h
rename to media/libaaudio/src/core/AudioStream.h
diff --git a/media/liboboe/src/core/AudioStreamBuilder.cpp b/media/libaaudio/src/core/AudioStreamBuilder.cpp
similarity index 100%
rename from media/liboboe/src/core/AudioStreamBuilder.cpp
rename to media/libaaudio/src/core/AudioStreamBuilder.cpp
diff --git a/media/liboboe/src/core/AudioStreamBuilder.h b/media/libaaudio/src/core/AudioStreamBuilder.h
similarity index 88%
rename from media/liboboe/src/core/AudioStreamBuilder.h
rename to media/libaaudio/src/core/AudioStreamBuilder.h
index 9e1a1a7..e72633d 100644
--- a/media/liboboe/src/core/AudioStreamBuilder.h
+++ b/media/libaaudio/src/core/AudioStreamBuilder.h
@@ -83,6 +83,15 @@
         return this;
     }
 
+    aaudio_size_frames_t getBufferCapacity() const {
+        return mBufferCapacity;
+    }
+
+    AudioStreamBuilder* setBufferCapacity(aaudio_size_frames_t frames) {
+        mBufferCapacity = frames;
+        return this;
+    }
+
     aaudio_device_id_t getDeviceId() const {
         return mDeviceId;
     }
@@ -95,12 +104,13 @@
     aaudio_result_t build(AudioStream **streamPtr);
 
 private:
-    int32_t              mSamplesPerFrame = AAUDIO_UNSPECIFIED;
+    int32_t                mSamplesPerFrame = AAUDIO_UNSPECIFIED;
     aaudio_sample_rate_t   mSampleRate = AAUDIO_UNSPECIFIED;
     aaudio_device_id_t     mDeviceId = AAUDIO_DEVICE_UNSPECIFIED;
     aaudio_sharing_mode_t  mSharingMode = AAUDIO_SHARING_MODE_LEGACY;
     aaudio_audio_format_t  mFormat = AAUDIO_FORMAT_UNSPECIFIED;
     aaudio_direction_t     mDirection = AAUDIO_DIRECTION_OUTPUT;
+    aaudio_size_frames_t   mBufferCapacity = AAUDIO_UNSPECIFIED;
 };
 
 } /* namespace aaudio */
diff --git a/media/liboboe/src/core/README.md b/media/libaaudio/src/core/README.md
similarity index 100%
rename from media/liboboe/src/core/README.md
rename to media/libaaudio/src/core/README.md
diff --git a/media/liboboe/src/core/VersionExperiment.txt b/media/libaaudio/src/core/VersionExperiment.txt
similarity index 100%
rename from media/liboboe/src/core/VersionExperiment.txt
rename to media/libaaudio/src/core/VersionExperiment.txt
diff --git a/media/liboboe/src/fifo/FifoBuffer.cpp b/media/libaaudio/src/fifo/FifoBuffer.cpp
similarity index 100%
rename from media/liboboe/src/fifo/FifoBuffer.cpp
rename to media/libaaudio/src/fifo/FifoBuffer.cpp
diff --git a/media/liboboe/src/fifo/FifoBuffer.h b/media/libaaudio/src/fifo/FifoBuffer.h
similarity index 100%
rename from media/liboboe/src/fifo/FifoBuffer.h
rename to media/libaaudio/src/fifo/FifoBuffer.h
diff --git a/media/liboboe/src/fifo/FifoController.h b/media/libaaudio/src/fifo/FifoController.h
similarity index 100%
rename from media/liboboe/src/fifo/FifoController.h
rename to media/libaaudio/src/fifo/FifoController.h
diff --git a/media/liboboe/src/fifo/FifoControllerBase.cpp b/media/libaaudio/src/fifo/FifoControllerBase.cpp
similarity index 100%
rename from media/liboboe/src/fifo/FifoControllerBase.cpp
rename to media/libaaudio/src/fifo/FifoControllerBase.cpp
diff --git a/media/liboboe/src/fifo/FifoControllerBase.h b/media/libaaudio/src/fifo/FifoControllerBase.h
similarity index 100%
rename from media/liboboe/src/fifo/FifoControllerBase.h
rename to media/libaaudio/src/fifo/FifoControllerBase.h
diff --git a/media/liboboe/src/fifo/FifoControllerIndirect.h b/media/libaaudio/src/fifo/FifoControllerIndirect.h
similarity index 100%
rename from media/liboboe/src/fifo/FifoControllerIndirect.h
rename to media/libaaudio/src/fifo/FifoControllerIndirect.h
diff --git a/media/liboboe/src/fifo/README.md b/media/libaaudio/src/fifo/README.md
similarity index 100%
rename from media/liboboe/src/fifo/README.md
rename to media/libaaudio/src/fifo/README.md
diff --git a/media/liboboe/src/legacy/AAudioLegacy.h b/media/libaaudio/src/legacy/AAudioLegacy.h
similarity index 100%
rename from media/liboboe/src/legacy/AAudioLegacy.h
rename to media/libaaudio/src/legacy/AAudioLegacy.h
diff --git a/media/liboboe/src/legacy/AudioStreamRecord.cpp b/media/libaaudio/src/legacy/AudioStreamRecord.cpp
similarity index 95%
rename from media/liboboe/src/legacy/AudioStreamRecord.cpp
rename to media/libaaudio/src/legacy/AudioStreamRecord.cpp
index 2d1785f..17d0a54 100644
--- a/media/liboboe/src/legacy/AudioStreamRecord.cpp
+++ b/media/libaaudio/src/legacy/AudioStreamRecord.cpp
@@ -60,6 +60,8 @@
     AudioRecord::callback_t callback = nullptr;
     audio_input_flags_t flags = (audio_input_flags_t) AUDIO_INPUT_FLAG_NONE;
 
+    size_t frameCount = (builder.getBufferCapacity() == AAUDIO_UNSPECIFIED) ? 0
+                        : builder.getBufferCapacity();
     // TODO implement an unspecified Android format then use that.
     audio_format_t format = (getFormat() == AAUDIO_UNSPECIFIED)
             ? AUDIO_FORMAT_PCM_FLOAT
@@ -70,20 +72,18 @@
             getSampleRate(),
             format,
             channelMask,
-
             mOpPackageName, // const String16& opPackageName TODO does not compile
-
-            0,    //    size_t frameCount = 0,
+            frameCount,
             callback,
             nullptr, //    void* user = nullptr,
             0,    //    uint32_t notificationFrames = 0,
             AUDIO_SESSION_ALLOCATE,
             AudioRecord::TRANSFER_DEFAULT,
             flags
-             //   int uid = -1,
-             //   pid_t pid = -1,
-             //   const audio_attributes_t* pAttributes = nullptr
-             );
+            //   int uid = -1,
+            //   pid_t pid = -1,
+            //   const audio_attributes_t* pAttributes = nullptr
+            );
 
     // Did we get a valid track?
     status_t status = mAudioRecord->initCheck();
diff --git a/media/liboboe/src/legacy/AudioStreamRecord.h b/media/libaaudio/src/legacy/AudioStreamRecord.h
similarity index 100%
rename from media/liboboe/src/legacy/AudioStreamRecord.h
rename to media/libaaudio/src/legacy/AudioStreamRecord.h
diff --git a/media/liboboe/src/legacy/AudioStreamTrack.cpp b/media/libaaudio/src/legacy/AudioStreamTrack.cpp
similarity index 98%
rename from media/liboboe/src/legacy/AudioStreamTrack.cpp
rename to media/libaaudio/src/legacy/AudioStreamTrack.cpp
index a60b5b4..b7d8664 100644
--- a/media/liboboe/src/legacy/AudioStreamTrack.cpp
+++ b/media/libaaudio/src/legacy/AudioStreamTrack.cpp
@@ -64,7 +64,8 @@
     AudioTrack::callback_t callback = nullptr;
     // TODO add more performance options
     audio_output_flags_t flags = (audio_output_flags_t) AUDIO_OUTPUT_FLAG_FAST;
-    size_t frameCount = 0;
+    size_t frameCount = (builder.getBufferCapacity() == AAUDIO_UNSPECIFIED) ? 0
+                        : builder.getBufferCapacity();
     // TODO implement an unspecified AudioTrack format then use that.
     audio_format_t format = (getFormat() == AAUDIO_UNSPECIFIED)
             ? AUDIO_FORMAT_PCM_FLOAT
diff --git a/media/liboboe/src/legacy/AudioStreamTrack.h b/media/libaaudio/src/legacy/AudioStreamTrack.h
similarity index 100%
rename from media/liboboe/src/legacy/AudioStreamTrack.h
rename to media/libaaudio/src/legacy/AudioStreamTrack.h
diff --git a/media/liboboe/src/legacy/README.md b/media/libaaudio/src/legacy/README.md
similarity index 100%
rename from media/liboboe/src/legacy/README.md
rename to media/libaaudio/src/legacy/README.md
diff --git a/media/liboboe/src/utility/AAudioUtilities.cpp b/media/libaaudio/src/utility/AAudioUtilities.cpp
similarity index 100%
rename from media/liboboe/src/utility/AAudioUtilities.cpp
rename to media/libaaudio/src/utility/AAudioUtilities.cpp
diff --git a/media/liboboe/src/utility/AAudioUtilities.h b/media/libaaudio/src/utility/AAudioUtilities.h
similarity index 100%
rename from media/liboboe/src/utility/AAudioUtilities.h
rename to media/libaaudio/src/utility/AAudioUtilities.h
diff --git a/media/liboboe/src/utility/AudioClock.h b/media/libaaudio/src/utility/AudioClock.h
similarity index 100%
rename from media/liboboe/src/utility/AudioClock.h
rename to media/libaaudio/src/utility/AudioClock.h
diff --git a/media/liboboe/src/utility/HandleTracker.cpp b/media/libaaudio/src/utility/HandleTracker.cpp
similarity index 100%
rename from media/liboboe/src/utility/HandleTracker.cpp
rename to media/libaaudio/src/utility/HandleTracker.cpp
diff --git a/media/liboboe/src/utility/HandleTracker.h b/media/libaaudio/src/utility/HandleTracker.h
similarity index 100%
rename from media/liboboe/src/utility/HandleTracker.h
rename to media/libaaudio/src/utility/HandleTracker.h
diff --git a/media/liboboe/src/utility/MonotonicCounter.h b/media/libaaudio/src/utility/MonotonicCounter.h
similarity index 100%
rename from media/liboboe/src/utility/MonotonicCounter.h
rename to media/libaaudio/src/utility/MonotonicCounter.h
diff --git a/media/liboboe/src/utility/README.md b/media/libaaudio/src/utility/README.md
similarity index 100%
rename from media/liboboe/src/utility/README.md
rename to media/libaaudio/src/utility/README.md
diff --git a/media/liboboe/tests/Android.mk b/media/libaaudio/tests/Android.mk
similarity index 62%
rename from media/liboboe/tests/Android.mk
rename to media/libaaudio/tests/Android.mk
index 16279ec..24dad4a 100644
--- a/media/liboboe/tests/Android.mk
+++ b/media/libaaudio/tests/Android.mk
@@ -3,40 +3,40 @@
 include $(CLEAR_VARS)
 LOCAL_C_INCLUDES := \
     $(call include-path-for, audio-utils) \
-    frameworks/av/media/liboboe/include \
-    frameworks/av/media/liboboe/src/core \
-    frameworks/av/media/liboboe/src/utility
+    frameworks/av/media/libaaudio/include \
+    frameworks/av/media/libaaudio/src/core \
+    frameworks/av/media/libaaudio/src/utility
 LOCAL_SRC_FILES := test_aaudio_api.cpp
 LOCAL_SHARED_LIBRARIES := libaudioclient libaudioutils libbinder \
                           libcutils liblog libmedia libutils
-LOCAL_STATIC_LIBRARIES := liboboe
+LOCAL_STATIC_LIBRARIES := libaaudio
 LOCAL_MODULE := test_aaudio_api
 include $(BUILD_NATIVE_TEST)
 
 include $(CLEAR_VARS)
 LOCAL_C_INCLUDES := \
     $(call include-path-for, audio-utils) \
-    frameworks/av/media/liboboe/include \
-    frameworks/av/media/liboboe/src/core \
-    frameworks/av/media/liboboe/src/utility
+    frameworks/av/media/libaaudio/include \
+    frameworks/av/media/libaaudio/src/core \
+    frameworks/av/media/libaaudio/src/utility
 LOCAL_SRC_FILES:= test_handle_tracker.cpp
 LOCAL_SHARED_LIBRARIES := libaudioclient libaudioutils libbinder \
                           libcutils liblog libmedia libutils
-LOCAL_STATIC_LIBRARIES := liboboe
+LOCAL_STATIC_LIBRARIES := libaaudio
 LOCAL_MODULE := test_handle_tracker
 include $(BUILD_NATIVE_TEST)
 
 include $(CLEAR_VARS)
 LOCAL_C_INCLUDES := \
     $(call include-path-for, audio-utils) \
-    frameworks/av/media/liboboe/include \
-    frameworks/av/media/liboboe/src \
-    frameworks/av/media/liboboe/src/core \
-    frameworks/av/media/liboboe/src/fifo \
-    frameworks/av/media/liboboe/src/utility
+    frameworks/av/media/libaaudio/include \
+    frameworks/av/media/libaaudio/src \
+    frameworks/av/media/libaaudio/src/core \
+    frameworks/av/media/libaaudio/src/fifo \
+    frameworks/av/media/libaaudio/src/utility
 LOCAL_SRC_FILES:= test_marshalling.cpp
 LOCAL_SHARED_LIBRARIES := libaudioclient libaudioutils libbinder \
                           libcutils liblog libmedia libutils
-LOCAL_STATIC_LIBRARIES := liboboe
+LOCAL_STATIC_LIBRARIES := libaaudio
 LOCAL_MODULE := test_marshalling
 include $(BUILD_NATIVE_TEST)
diff --git a/media/liboboe/tests/test_aaudio_api.cpp b/media/libaaudio/tests/test_aaudio_api.cpp
similarity index 100%
rename from media/liboboe/tests/test_aaudio_api.cpp
rename to media/libaaudio/tests/test_aaudio_api.cpp
diff --git a/media/liboboe/tests/test_handle_tracker.cpp b/media/libaaudio/tests/test_handle_tracker.cpp
similarity index 100%
rename from media/liboboe/tests/test_handle_tracker.cpp
rename to media/libaaudio/tests/test_handle_tracker.cpp
diff --git a/media/liboboe/tests/test_marshalling.cpp b/media/libaaudio/tests/test_marshalling.cpp
similarity index 100%
rename from media/liboboe/tests/test_marshalling.cpp
rename to media/libaaudio/tests/test_marshalling.cpp
diff --git a/media/libaudioclient/AudioTrack.cpp b/media/libaudioclient/AudioTrack.cpp
index 0de3559..d35cfe3 100644
--- a/media/libaudioclient/AudioTrack.cpp
+++ b/media/libaudioclient/AudioTrack.cpp
@@ -184,6 +184,7 @@
       mPreviousSchedulingGroup(SP_DEFAULT),
       mPausedPosition(0),
       mSelectedDeviceId(AUDIO_PORT_HANDLE_NONE),
+      mVolumeShaperId(VolumeShaper::kSystemIdMax),
       mPortId(AUDIO_PORT_HANDLE_NONE)
 {
     mAttributes.content_type = AUDIO_CONTENT_TYPE_UNKNOWN;
@@ -556,7 +557,7 @@
     mFramesWritten = 0;
     mFramesWrittenServerOffset = 0;
     mFramesWrittenAtRestore = -1; // -1 is a unique initializer.
-
+    mVolumeHandler = new VolumeHandler(mSampleRate);
     return NO_ERROR;
 }
 
@@ -2310,6 +2311,40 @@
     return mAudioTrack->setParameters(keyValuePairs);
 }
 
+VolumeShaper::Status AudioTrack::applyVolumeShaper(
+        const sp<VolumeShaper::Configuration>& configuration,
+        const sp<VolumeShaper::Operation>& operation)
+{
+    AutoMutex lock(mLock);
+    if (configuration->getType() == VolumeShaper::Configuration::TYPE_SCALE) {
+        const int id = configuration->getId();
+        LOG_ALWAYS_FATAL_IF(id >= VolumeShaper::kSystemIdMax || id < -1,
+                "id must be -1 or a system id (less than kSystemIdMax)");
+        if (id == -1) {
+            // if not a system id, reassign to a unique id
+            configuration->setId(mVolumeShaperId);
+            ALOGD("setting id to %d", mVolumeShaperId);
+            // increment and avoid signed overflow.
+            if (mVolumeShaperId == INT32_MAX) {
+                mVolumeShaperId = VolumeShaper::kSystemIdMax;
+            } else {
+                ++mVolumeShaperId;
+            }
+        }
+    }
+    VolumeShaper::Status status = mAudioTrack->applyVolumeShaper(configuration, operation);
+    // TODO: For restoration purposes, record successful creation and termination.
+    return status;
+}
+
+sp<VolumeShaper::State> AudioTrack::getVolumeShaperState(int id)
+{
+    // TODO: To properly restore the AudioTrack
+    // we will need to save the last state in AudioTrackShared.
+    AutoMutex lock(mLock);
+    return mAudioTrack->getVolumeShaperState(id);
+}
+
 status_t AudioTrack::getTimestamp(ExtendedTimestamp *timestamp)
 {
     if (timestamp == nullptr) {
diff --git a/media/libaudioclient/IAudioTrack.cpp b/media/libaudioclient/IAudioTrack.cpp
index 89e0fcc..79e864d 100644
--- a/media/libaudioclient/IAudioTrack.cpp
+++ b/media/libaudioclient/IAudioTrack.cpp
@@ -39,6 +39,8 @@
     SET_PARAMETERS,
     GET_TIMESTAMP,
     SIGNAL,
+    APPLY_VOLUME_SHAPER,
+    GET_VOLUME_SHAPER_STATE,
 };
 
 class BpAudioTrack : public BpInterface<IAudioTrack>
@@ -143,6 +145,52 @@
         data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
         remote()->transact(SIGNAL, data, &reply);
     }
+
+    virtual VolumeShaper::Status applyVolumeShaper(
+            const sp<VolumeShaper::Configuration>& configuration,
+            const sp<VolumeShaper::Operation>& operation) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
+
+        status_t status = configuration.get() == nullptr
+                ? data.writeInt32(0)
+                :  data.writeInt32(1)
+                    ?: configuration->writeToParcel(&data);
+        if (status != NO_ERROR) {
+            return VolumeShaper::Status(status);
+        }
+
+        status = operation.get() == nullptr
+                ? status = data.writeInt32(0)
+                : data.writeInt32(1)
+                    ?: operation->writeToParcel(&data);
+        if (status != NO_ERROR) {
+            return VolumeShaper::Status(status);
+        }
+
+        int32_t remoteVolumeShaperStatus;
+        status = remote()->transact(APPLY_VOLUME_SHAPER, data, &reply)
+                 ?: reply.readInt32(&remoteVolumeShaperStatus);
+
+        return VolumeShaper::Status(status ?: remoteVolumeShaperStatus);
+    }
+
+    virtual sp<VolumeShaper::State> getVolumeShaperState(int id) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
+
+        data.writeInt32(id);
+        status_t status = remote()->transact(GET_VOLUME_SHAPER_STATE, data, &reply);
+        if (status != NO_ERROR) {
+            return nullptr;
+        }
+        sp<VolumeShaper::State> state = new VolumeShaper::State;
+        status = state->readFromParcel(reply);
+        if (status != NO_ERROR) {
+            return nullptr;
+        }
+        return state;
+    }
 };
 
 IMPLEMENT_META_INTERFACE(AudioTrack, "android.media.IAudioTrack");
@@ -206,6 +254,40 @@
             signal();
             return NO_ERROR;
         } break;
+        case APPLY_VOLUME_SHAPER: {
+            CHECK_INTERFACE(IAudioTrack, data, reply);
+            sp<VolumeShaper::Configuration> configuration;
+            sp<VolumeShaper::Operation> operation;
+
+            int32_t present;
+            status_t status = data.readInt32(&present);
+            if (status == NO_ERROR && present != 0) {
+                configuration = new VolumeShaper::Configuration();
+                status = configuration->readFromParcel(data);
+            }
+            status = status ?: data.readInt32(&present);
+            if (status == NO_ERROR && present != 0) {
+                operation = new VolumeShaper::Operation();
+                status = operation->readFromParcel(data);
+            }
+            if (status == NO_ERROR) {
+                status = (status_t)applyVolumeShaper(configuration, operation);
+            }
+            reply->writeInt32(status);
+            return NO_ERROR;
+        } break;
+        case GET_VOLUME_SHAPER_STATE: {
+            CHECK_INTERFACE(IAudioTrack, data, reply);
+            int id;
+            status_t status = data.readInt32(&id);
+            if (status == NO_ERROR) {
+                sp<VolumeShaper::State> state = getVolumeShaperState(id);
+                if (state.get() != nullptr) {
+                     status = state->writeToParcel(reply);
+                }
+            }
+            return NO_ERROR;
+        } break;
         default:
             return BBinder::onTransact(code, data, reply, flags);
     }
diff --git a/media/libaudiohal/Android.mk b/media/libaudiohal/Android.mk
index 5e00b77..617eb35 100644
--- a/media/libaudiohal/Android.mk
+++ b/media/libaudiohal/Android.mk
@@ -46,7 +46,8 @@
     android.hardware.audio.common@2.0-util \
     android.hardware.audio.effect@2.0      \
     android.hidl.memory@1.0                \
-    libmedia_helper
+    libmedia_helper  \
+    libmediautils
 
 endif  # USE_LEGACY_LOCAL_AUDIO_HAL
 
diff --git a/media/libaudiohal/StreamHalHidl.cpp b/media/libaudiohal/StreamHalHidl.cpp
index 9ee8fa8..4054aaa 100644
--- a/media/libaudiohal/StreamHalHidl.cpp
+++ b/media/libaudiohal/StreamHalHidl.cpp
@@ -14,12 +14,11 @@
  * limitations under the License.
  */
 
-#include <time.h>
-
 #define LOG_TAG "StreamHalHidl"
 //#define LOG_NDEBUG 0
 
 #include <android/hardware/audio/2.0/IStreamOutCallback.h>
+#include <mediautils/SchedulingPolicyService.h>
 #include <utils/Log.h>
 
 #include "DeviceHalHidl.h"
@@ -28,6 +27,7 @@
 
 using ::android::hardware::audio::common::V2_0::AudioChannelMask;
 using ::android::hardware::audio::common::V2_0::AudioFormat;
+using ::android::hardware::audio::common::V2_0::ThreadInfo;
 using ::android::hardware::audio::V2_0::AudioDrain;
 using ::android::hardware::audio::V2_0::IStreamOutCallback;
 using ::android::hardware::audio::V2_0::MessageQueueFlagBits;
@@ -35,18 +35,18 @@
 using ::android::hardware::audio::V2_0::MmapPosition;
 using ::android::hardware::audio::V2_0::ParameterValue;
 using ::android::hardware::audio::V2_0::Result;
-using ::android::hardware::audio::V2_0::ThreadPriority;
 using ::android::hardware::audio::V2_0::TimeSpec;
 using ::android::hardware::MQDescriptorSync;
 using ::android::hardware::Return;
 using ::android::hardware::Void;
+using ReadCommand = ::android::hardware::audio::V2_0::IStreamIn::ReadCommand;
 
 namespace android {
 
 StreamHalHidl::StreamHalHidl(IStream *stream)
         : ConversionHelperHidl("Stream"),
-          mHalThreadPriority(static_cast<int>(ThreadPriority::NORMAL)),
-          mStream(stream) {
+          mStream(stream),
+          mHalThreadPriority(HAL_THREAD_PRIORITY_DEFAULT) {
 }
 
 StreamHalHidl::~StreamHalHidl() {
@@ -188,6 +188,19 @@
     return OK;
 }
 
+bool StreamHalHidl::requestHalThreadPriority(pid_t threadPid, pid_t threadId) {
+    if (mHalThreadPriority == HAL_THREAD_PRIORITY_DEFAULT) {
+        return true;
+    }
+    int err = requestPriority(
+            threadPid, threadId,
+            mHalThreadPriority, false /*isForApp*/, true /*asynchronous*/);
+    ALOGE_IF(err, "failed to set priority %d for pid %d tid %d; error %d",
+            mHalThreadPriority, threadPid, threadId, err);
+    // Audio will still work, but latency will be higher and sometimes unacceptable.
+    return err == 0;
+}
+
 namespace {
 
 /* Notes on callback ownership.
@@ -241,8 +254,7 @@
 }  // namespace
 
 StreamOutHalHidl::StreamOutHalHidl(const sp<IStreamOut>& stream)
-        : StreamHalHidl(stream.get()), mStream(stream), mEfGroup(nullptr),
-          mGetPresentationPositionNotSupported(false), mPPosFromWrite{ 0, OK, 0, { 0, 0 } } {
+        : StreamHalHidl(stream.get()), mStream(stream), mWriterClient(0), mEfGroup(nullptr) {
 }
 
 StreamOutHalHidl::~StreamOutHalHidl() {
@@ -265,7 +277,15 @@
 
 status_t StreamOutHalHidl::getLatency(uint32_t *latency) {
     if (mStream == 0) return NO_INIT;
-    return processReturn("getLatency", mStream->getLatency(), latency);
+    if (mWriterClient == gettid() && mCommandMQ) {
+        return callWriterThread(
+                WriteCommand::GET_LATENCY, "getLatency", nullptr, 0,
+                [&](const WriteStatus& writeStatus) {
+                    *latency = writeStatus.reply.latencyMs;
+                });
+    } else {
+        return processReturn("getLatency", mStream->getLatency(), latency);
+    }
 }
 
 status_t StreamOutHalHidl::setVolume(float left, float right) {
@@ -288,10 +308,30 @@
         return status;
     }
 
-    const size_t availBytes = mDataMQ->availableToWrite();
-    if (bytes > availBytes) { bytes = availBytes; }
-    if (!mDataMQ->write(static_cast<const uint8_t*>(buffer), bytes)) {
-        ALOGW("data message queue write failed");
+    return callWriterThread(
+            WriteCommand::WRITE, "write", static_cast<const uint8_t*>(buffer), bytes,
+            [&] (const WriteStatus& writeStatus) {
+                *written = writeStatus.reply.written;
+            });
+}
+
+status_t StreamOutHalHidl::callWriterThread(
+        WriteCommand cmd, const char* cmdName,
+        const uint8_t* data, size_t dataSize, StreamOutHalHidl::WriterCallback callback) {
+    if (!mCommandMQ->write(&cmd)) {
+        ALOGE("command message queue write failed for \"%s\"", cmdName);
+        return -EAGAIN;
+    }
+    if (data != nullptr) {
+        size_t availableToWrite = mDataMQ->availableToWrite();
+        if (dataSize > availableToWrite) {
+            ALOGW("truncating write data from %d to %d due to insufficient data queue space",
+                    (int32_t)dataSize, (int32_t)availableToWrite);
+            dataSize = availableToWrite;
+        }
+        if (!mDataMQ->write(data, dataSize)) {
+            ALOGE("data message queue write failed for \"%s\"", cmdName);
+        }
     }
     mEfGroup->wake(static_cast<uint32_t>(MessageQueueFlagBits::NOT_EMPTY));
 
@@ -301,24 +341,18 @@
     status_t ret = mEfGroup->wait(
             static_cast<uint32_t>(MessageQueueFlagBits::NOT_FULL), &efState, NS_PER_SEC);
     if (efState & static_cast<uint32_t>(MessageQueueFlagBits::NOT_FULL)) {
-        WriteStatus writeStatus =
-                { Result::NOT_INITIALIZED, 0, Result::NOT_INITIALIZED, 0, { 0, 0 } };
-        mStatusMQ->read(&writeStatus);
-        if (writeStatus.writeRetval == Result::OK) {
-            status = OK;
-            *written = writeStatus.written;
-            mPPosFromWrite.status = processReturn(
-                    "get_presentation_position", writeStatus.presentationPositionRetval);
-            if (mPPosFromWrite.status == OK) {
-                mPPosFromWrite.frames = writeStatus.frames;
-                mPPosFromWrite.ts.tv_sec = writeStatus.timeStamp.tvSec;
-                mPPosFromWrite.ts.tv_nsec = writeStatus.timeStamp.tvNSec;
-            }
-            mPPosFromWrite.obtained = getCurrentTimeMs();
-        } else {
-            status = processReturn("write", writeStatus.writeRetval);
+        WriteStatus writeStatus;
+        writeStatus.retval = Result::NOT_INITIALIZED;
+        if (!mStatusMQ->read(&writeStatus)) {
+            ALOGE("status message read failed for \"%s\"", cmdName);
         }
-        return status;
+        if (writeStatus.retval == Result::OK) {
+            ret = OK;
+            callback(writeStatus);
+        } else {
+            ret = processReturn(cmdName, writeStatus.retval);
+        }
+        return ret;
     }
     if (ret == -EAGAIN) {
         // This normally retries no more than once.
@@ -327,35 +361,41 @@
     return ret;
 }
 
-uint64_t StreamOutHalHidl::getCurrentTimeMs() {
-    struct timespec timeNow;
-    clock_gettime(CLOCK_MONOTONIC, &timeNow);
-    return timeNow.tv_sec * 1000000 + timeNow.tv_nsec / 1000;
-}
-
 status_t StreamOutHalHidl::prepareForWriting(size_t bufferSize) {
+    std::unique_ptr<CommandMQ> tempCommandMQ;
     std::unique_ptr<DataMQ> tempDataMQ;
     std::unique_ptr<StatusMQ> tempStatusMQ;
     Result retval;
+    pid_t halThreadPid, halThreadTid;
     Return<void> ret = mStream->prepareForWriting(
-            1, bufferSize, ThreadPriority(mHalThreadPriority),
+            1, bufferSize,
             [&](Result r,
+                    const CommandMQ::Descriptor& commandMQ,
                     const DataMQ::Descriptor& dataMQ,
-                    const StatusMQ::Descriptor& statusMQ) {
+                    const StatusMQ::Descriptor& statusMQ,
+                    const ThreadInfo& halThreadInfo) {
                 retval = r;
                 if (retval == Result::OK) {
+                    tempCommandMQ.reset(new CommandMQ(commandMQ));
                     tempDataMQ.reset(new DataMQ(dataMQ));
                     tempStatusMQ.reset(new StatusMQ(statusMQ));
                     if (tempDataMQ->isValid() && tempDataMQ->getEventFlagWord()) {
                         EventFlag::createEventFlag(tempDataMQ->getEventFlagWord(), &mEfGroup);
                     }
+                    halThreadPid = halThreadInfo.pid;
+                    halThreadTid = halThreadInfo.tid;
                 }
             });
     if (!ret.isOk() || retval != Result::OK) {
         return processReturn("prepareForWriting", ret, retval);
     }
-    if (!tempDataMQ || !tempDataMQ->isValid() || !tempStatusMQ || !tempStatusMQ->isValid()
-        || !mEfGroup) {
+    if (!tempCommandMQ || !tempCommandMQ->isValid() ||
+            !tempDataMQ || !tempDataMQ->isValid() ||
+            !tempStatusMQ || !tempStatusMQ->isValid() ||
+            !mEfGroup) {
+        ALOGE_IF(!tempCommandMQ, "Failed to obtain command message queue for writing");
+        ALOGE_IF(tempCommandMQ && !tempCommandMQ->isValid(),
+                "Command message queue for writing is invalid");
         ALOGE_IF(!tempDataMQ, "Failed to obtain data message queue for writing");
         ALOGE_IF(tempDataMQ && !tempDataMQ->isValid(), "Data message queue for writing is invalid");
         ALOGE_IF(!tempStatusMQ, "Failed to obtain status message queue for writing");
@@ -364,8 +404,12 @@
         ALOGE_IF(!mEfGroup, "Event flag creation for writing failed");
         return NO_INIT;
     }
+    requestHalThreadPriority(halThreadPid, halThreadTid);
+
+    mCommandMQ = std::move(tempCommandMQ);
     mDataMQ = std::move(tempDataMQ);
     mStatusMQ = std::move(tempStatusMQ);
+    mWriterClient = gettid();
     return OK;
 }
 
@@ -443,31 +487,27 @@
 
 status_t StreamOutHalHidl::getPresentationPosition(uint64_t *frames, struct timespec *timestamp) {
     if (mStream == 0) return NO_INIT;
-    if (mGetPresentationPositionNotSupported) return INVALID_OPERATION;
-    if (getCurrentTimeMs() - mPPosFromWrite.obtained <= 1000) {
-        // No more than 1 ms passed since the last write, use cached result to avoid binder calls.
-        if (mPPosFromWrite.status == OK) {
-            *frames = mPPosFromWrite.frames;
-            timestamp->tv_sec = mPPosFromWrite.ts.tv_sec;
-            timestamp->tv_nsec = mPPosFromWrite.ts.tv_nsec;
-        }
-        return mPPosFromWrite.status;
+    if (mWriterClient == gettid() && mCommandMQ) {
+        return callWriterThread(
+                WriteCommand::GET_PRESENTATION_POSITION, "getPresentationPosition", nullptr, 0,
+                [&](const WriteStatus& writeStatus) {
+                    *frames = writeStatus.reply.presentationPosition.frames;
+                    timestamp->tv_sec = writeStatus.reply.presentationPosition.timeStamp.tvSec;
+                    timestamp->tv_nsec = writeStatus.reply.presentationPosition.timeStamp.tvNSec;
+                });
+    } else {
+        Result retval;
+        Return<void> ret = mStream->getPresentationPosition(
+                [&](Result r, uint64_t hidlFrames, const TimeSpec& hidlTimeStamp) {
+                    retval = r;
+                    if (retval == Result::OK) {
+                        *frames = hidlFrames;
+                        timestamp->tv_sec = hidlTimeStamp.tvSec;
+                        timestamp->tv_nsec = hidlTimeStamp.tvNSec;
+                    }
+                });
+        return processReturn("getPresentationPosition", ret, retval);
     }
-
-    Result retval;
-    Return<void> ret = mStream->getPresentationPosition(
-            [&](Result r, uint64_t hidlFrames, const TimeSpec& hidlTimeStamp) {
-                retval = r;
-                if (retval == Result::OK) {
-                    *frames = hidlFrames;
-                    timestamp->tv_sec = hidlTimeStamp.tvSec;
-                    timestamp->tv_nsec = hidlTimeStamp.tvNSec;
-                }
-            });
-    if (ret.isOk() && retval == Result::NOT_SUPPORTED) {
-        mGetPresentationPositionNotSupported = true;
-    }
-    return processReturn("getPresentationPosition", ret, retval);
 }
 
 void StreamOutHalHidl::onWriteReady() {
@@ -493,7 +533,7 @@
 
 
 StreamInHalHidl::StreamInHalHidl(const sp<IStreamIn>& stream)
-        : StreamHalHidl(stream.get()), mStream(stream), mEfGroup(nullptr) {
+        : StreamHalHidl(stream.get()), mStream(stream), mReaderClient(0), mEfGroup(nullptr) {
 }
 
 StreamInHalHidl::~StreamInHalHidl() {
@@ -525,33 +565,53 @@
     }
 
     status_t status;
-    if (!mDataMQ) {
-        if ((status = prepareForReading(bytes)) != OK) return status;
-        // Trigger the first read.
-        mEfGroup->wake(static_cast<uint32_t>(MessageQueueFlagBits::NOT_FULL));
+    if (!mDataMQ && (status = prepareForReading(bytes)) != OK) {
+        return status;
     }
 
+    ReadParameters params;
+    params.command = ReadCommand::READ;
+    params.params.read = bytes;
+    return callReaderThread(params, "read",
+            [&](const ReadStatus& readStatus) {
+                const size_t availToRead = mDataMQ->availableToRead();
+                if (!mDataMQ->read(static_cast<uint8_t*>(buffer), std::min(bytes, availToRead))) {
+                    ALOGE("data message queue read failed for \"read\"");
+                }
+                ALOGW_IF(availToRead != readStatus.reply.read,
+                        "HAL read report inconsistent: mq = %d, status = %d",
+                        (int32_t)availToRead, (int32_t)readStatus.reply.read);
+                *read = readStatus.reply.read;
+            });
+}
+
+status_t StreamInHalHidl::callReaderThread(
+        const ReadParameters& params, const char* cmdName,
+        StreamInHalHidl::ReaderCallback callback) {
+    if (!mCommandMQ->write(&params)) {
+        ALOGW("command message queue write failed");
+        return -EAGAIN;
+    }
+    mEfGroup->wake(static_cast<uint32_t>(MessageQueueFlagBits::NOT_FULL));
+
     // TODO: Remove manual event flag handling once blocking MQ is implemented. b/33815422
     uint32_t efState = 0;
 retry:
     status_t ret = mEfGroup->wait(
             static_cast<uint32_t>(MessageQueueFlagBits::NOT_EMPTY), &efState, NS_PER_SEC);
     if (efState & static_cast<uint32_t>(MessageQueueFlagBits::NOT_EMPTY)) {
-        ReadStatus readStatus = { Result::NOT_INITIALIZED, 0 };
-        const size_t availToRead = mDataMQ->availableToRead();
-        if (bytes > availToRead) { bytes = availToRead; }
-        mDataMQ->read(static_cast<uint8_t*>(buffer), bytes);
-        mStatusMQ->read(&readStatus);
-        mEfGroup->wake(static_cast<uint32_t>(MessageQueueFlagBits::NOT_FULL));
-        if (readStatus.retval == Result::OK) {
-            ALOGW_IF(availToRead != readStatus.read,
-                    "HAL read report inconsistent: mq = %d, status = %d",
-                    (int32_t)availToRead, (int32_t)readStatus.read);
-            *read = readStatus.read;
-        } else {
-            status = processReturn("read", readStatus.retval);
+        ReadStatus readStatus;
+        readStatus.retval = Result::NOT_INITIALIZED;
+        if (!mStatusMQ->read(&readStatus)) {
+            ALOGE("status message read failed for \"%s\"", cmdName);
         }
-        return status;
+         if (readStatus.retval == Result::OK) {
+            ret = OK;
+            callback(readStatus);
+        } else {
+            ret = processReturn(cmdName, readStatus.retval);
+        }
+        return ret;
     }
     if (ret == -EAGAIN) {
         // This normally retries no more than once.
@@ -561,28 +621,40 @@
 }
 
 status_t StreamInHalHidl::prepareForReading(size_t bufferSize) {
+    std::unique_ptr<CommandMQ> tempCommandMQ;
     std::unique_ptr<DataMQ> tempDataMQ;
     std::unique_ptr<StatusMQ> tempStatusMQ;
     Result retval;
+    pid_t halThreadPid, halThreadTid;
     Return<void> ret = mStream->prepareForReading(
-            1, bufferSize, ThreadPriority(mHalThreadPriority),
+            1, bufferSize,
             [&](Result r,
+                    const CommandMQ::Descriptor& commandMQ,
                     const DataMQ::Descriptor& dataMQ,
-                    const StatusMQ::Descriptor& statusMQ) {
+                    const StatusMQ::Descriptor& statusMQ,
+                    const ThreadInfo& halThreadInfo) {
                 retval = r;
                 if (retval == Result::OK) {
+                    tempCommandMQ.reset(new CommandMQ(commandMQ));
                     tempDataMQ.reset(new DataMQ(dataMQ));
                     tempStatusMQ.reset(new StatusMQ(statusMQ));
                     if (tempDataMQ->isValid() && tempDataMQ->getEventFlagWord()) {
                         EventFlag::createEventFlag(tempDataMQ->getEventFlagWord(), &mEfGroup);
                     }
+                    halThreadPid = halThreadInfo.pid;
+                    halThreadTid = halThreadInfo.tid;
                 }
             });
     if (!ret.isOk() || retval != Result::OK) {
         return processReturn("prepareForReading", ret, retval);
     }
-    if (!tempDataMQ || !tempDataMQ->isValid() || !tempStatusMQ || !tempStatusMQ->isValid()
-        || !mEfGroup) {
+    if (!tempCommandMQ || !tempCommandMQ->isValid() ||
+            !tempDataMQ || !tempDataMQ->isValid() ||
+            !tempStatusMQ || !tempStatusMQ->isValid() ||
+            !mEfGroup) {
+        ALOGE_IF(!tempCommandMQ, "Failed to obtain command message queue for writing");
+        ALOGE_IF(tempCommandMQ && !tempCommandMQ->isValid(),
+                "Command message queue for writing is invalid");
         ALOGE_IF(!tempDataMQ, "Failed to obtain data message queue for reading");
         ALOGE_IF(tempDataMQ && !tempDataMQ->isValid(), "Data message queue for reading is invalid");
         ALOGE_IF(!tempStatusMQ, "Failed to obtain status message queue for reading");
@@ -591,8 +663,12 @@
         ALOGE_IF(!mEfGroup, "Event flag creation for reading failed");
         return NO_INIT;
     }
+    requestHalThreadPriority(halThreadPid, halThreadTid);
+
+    mCommandMQ = std::move(tempCommandMQ);
     mDataMQ = std::move(tempDataMQ);
     mStatusMQ = std::move(tempStatusMQ);
+    mReaderClient = gettid();
     return OK;
 }
 
@@ -603,16 +679,26 @@
 
 status_t StreamInHalHidl::getCapturePosition(int64_t *frames, int64_t *time) {
     if (mStream == 0) return NO_INIT;
-    Result retval;
-    Return<void> ret = mStream->getCapturePosition(
-            [&](Result r, uint64_t hidlFrames, uint64_t hidlTime) {
-                retval = r;
-                if (retval == Result::OK) {
-                    *frames = hidlFrames;
-                    *time = hidlTime;
-                }
-            });
-    return processReturn("getCapturePosition", ret, retval);
+    if (mReaderClient == gettid() && mCommandMQ) {
+        ReadParameters params;
+        params.command = ReadCommand::GET_CAPTURE_POSITION;
+        return callReaderThread(params, "getCapturePosition",
+                [&](const ReadStatus& readStatus) {
+                    *frames = readStatus.reply.capturePosition.frames;
+                    *time = readStatus.reply.capturePosition.time;
+                });
+    } else {
+        Result retval;
+        Return<void> ret = mStream->getCapturePosition(
+                [&](Result r, uint64_t hidlFrames, uint64_t hidlTime) {
+                    retval = r;
+                    if (retval == Result::OK) {
+                        *frames = hidlFrames;
+                        *time = hidlTime;
+                    }
+                });
+        return processReturn("getCapturePosition", ret, retval);
+    }
 }
 
 } // namespace android
diff --git a/media/libaudiohal/StreamHalHidl.h b/media/libaudiohal/StreamHalHidl.h
index 8b5867e..a7df276 100644
--- a/media/libaudiohal/StreamHalHidl.h
+++ b/media/libaudiohal/StreamHalHidl.h
@@ -17,6 +17,8 @@
 #ifndef ANDROID_HARDWARE_STREAM_HAL_HIDL_H
 #define ANDROID_HARDWARE_STREAM_HAL_HIDL_H
 
+#include <atomic>
+
 #include <android/hardware/audio/2.0/IStream.h>
 #include <android/hardware/audio/2.0/IStreamIn.h>
 #include <android/hardware/audio/2.0/IStreamOut.h>
@@ -32,7 +34,9 @@
 using ::android::hardware::EventFlag;
 using ::android::hardware::MessageQueue;
 using ::android::hardware::Return;
+using ReadParameters = ::android::hardware::audio::V2_0::IStreamIn::ReadParameters;
 using ReadStatus = ::android::hardware::audio::V2_0::IStreamIn::ReadStatus;
+using WriteCommand = ::android::hardware::audio::V2_0::IStreamOut::WriteCommand;
 using WriteStatus = ::android::hardware::audio::V2_0::IStreamOut::WriteStatus;
 
 namespace android {
@@ -97,10 +101,12 @@
     // The destructor automatically closes the stream.
     virtual ~StreamHalHidl();
 
-    int mHalThreadPriority;
+    bool requestHalThreadPriority(pid_t threadPid, pid_t threadId);
 
   private:
+    const int HAL_THREAD_PRIORITY_DEFAULT = -1;
     IStream *mStream;
+    int mHalThreadPriority;
 };
 
 class StreamOutHalHidl : public StreamOutHalInterface, public StreamHalHidl {
@@ -155,28 +161,27 @@
 
   private:
     friend class DeviceHalHidl;
+    typedef MessageQueue<WriteCommand, hardware::kSynchronizedReadWrite> CommandMQ;
     typedef MessageQueue<uint8_t, hardware::kSynchronizedReadWrite> DataMQ;
     typedef MessageQueue<WriteStatus, hardware::kSynchronizedReadWrite> StatusMQ;
 
     wp<StreamOutHalInterfaceCallback> mCallback;
     sp<IStreamOut> mStream;
+    std::unique_ptr<CommandMQ> mCommandMQ;
     std::unique_ptr<DataMQ> mDataMQ;
     std::unique_ptr<StatusMQ> mStatusMQ;
+    std::atomic<pid_t> mWriterClient;
     EventFlag* mEfGroup;
-    bool mGetPresentationPositionNotSupported;
-    struct {
-        uint64_t obtained;
-        status_t status;
-        uint64_t frames;
-        struct timespec ts;
-    } mPPosFromWrite;
 
     // Can not be constructed directly by clients.
     StreamOutHalHidl(const sp<IStreamOut>& stream);
 
     virtual ~StreamOutHalHidl();
 
-    uint64_t getCurrentTimeMs();
+    using WriterCallback = std::function<void(const WriteStatus& writeStatus)>;
+    status_t callWriterThread(
+            WriteCommand cmd, const char* cmdName,
+            const uint8_t* data, size_t dataSize, WriterCallback callback);
     status_t prepareForWriting(size_t bufferSize);
 };
 
@@ -200,12 +205,15 @@
 
   private:
     friend class DeviceHalHidl;
+    typedef MessageQueue<ReadParameters, hardware::kSynchronizedReadWrite> CommandMQ;
     typedef MessageQueue<uint8_t, hardware::kSynchronizedReadWrite> DataMQ;
     typedef MessageQueue<ReadStatus, hardware::kSynchronizedReadWrite> StatusMQ;
 
     sp<IStreamIn> mStream;
+    std::unique_ptr<CommandMQ> mCommandMQ;
     std::unique_ptr<DataMQ> mDataMQ;
     std::unique_ptr<StatusMQ> mStatusMQ;
+    std::atomic<pid_t> mReaderClient;
     EventFlag* mEfGroup;
 
     // Can not be constructed directly by clients.
@@ -213,6 +221,9 @@
 
     virtual ~StreamInHalHidl();
 
+    using ReaderCallback = std::function<void(const ReadStatus& readStatus)>;
+    status_t callReaderThread(
+            const ReadParameters& params, const char* cmdName, ReaderCallback callback);
     status_t prepareForReading(size_t bufferSize);
 };
 
diff --git a/media/libmedia/IHDCP.cpp b/media/libmedia/IHDCP.cpp
index 21e35f6..15ed579 100644
--- a/media/libmedia/IHDCP.cpp
+++ b/media/libmedia/IHDCP.cpp
@@ -241,14 +241,11 @@
         case HDCP_ENCRYPT:
         {
             size_t size = data.readInt32();
-            size_t bufSize = 2 * size;
-
-            // watch out for overflow
             void *inData = NULL;
-            if (bufSize > size) {
-                inData = malloc(bufSize);
+            // watch out for overflow
+            if (size <= SIZE_MAX / 2) {
+                inData = malloc(2 * size);
             }
-
             if (inData == NULL) {
                 reply->writeInt32(ERROR_OUT_OF_RANGE);
                 return OK;
@@ -256,11 +253,16 @@
 
             void *outData = (uint8_t *)inData + size;
 
-            data.read(inData, size);
+            status_t err = data.read(inData, size);
+            if (err != OK) {
+                free(inData);
+                reply->writeInt32(err);
+                return OK;
+            }
 
             uint32_t streamCTR = data.readInt32();
             uint64_t inputCTR;
-            status_t err = encrypt(inData, size, streamCTR, &inputCTR, outData);
+            err = encrypt(inData, size, streamCTR, &inputCTR, outData);
 
             reply->writeInt32(err);
 
diff --git a/media/libmedia/IMediaExtractor.cpp b/media/libmedia/IMediaExtractor.cpp
index 0f4f092..bfc43a6 100644
--- a/media/libmedia/IMediaExtractor.cpp
+++ b/media/libmedia/IMediaExtractor.cpp
@@ -36,7 +36,8 @@
     FLAGS,
     GETDRMTRACKINFO,
     SETUID,
-    NAME
+    NAME,
+    GETMETRICS
 };
 
 class BpMediaExtractor : public BpInterface<IMediaExtractor> {
@@ -94,6 +95,16 @@
         return NULL;
     }
 
+    virtual status_t getMetrics(Parcel * reply) {
+        Parcel data;
+        data.writeInterfaceToken(BpMediaExtractor::getInterfaceDescriptor());
+        status_t ret = remote()->transact(GETMETRICS, data, reply);
+        if (ret == NO_ERROR) {
+            return OK;
+        }
+        return UNKNOWN_ERROR;
+    }
+
     virtual uint32_t flags() const {
         ALOGV("flags NOT IMPLEMENTED");
         return 0;
@@ -169,6 +180,11 @@
             }
             return UNKNOWN_ERROR;
         }
+        case GETMETRICS: {
+            CHECK_INTERFACE(IMediaExtractor, data, reply);
+            status_t ret = getMetrics(reply);
+            return ret;
+        }
         default:
             return BBinder::onTransact(code, data, reply, flags);
     }
diff --git a/media/libmedia/IMediaPlayer.cpp b/media/libmedia/IMediaPlayer.cpp
index 966267a..5222a42 100644
--- a/media/libmedia/IMediaPlayer.cpp
+++ b/media/libmedia/IMediaPlayer.cpp
@@ -70,6 +70,8 @@
     SET_RETRANSMIT_ENDPOINT,
     GET_RETRANSMIT_ENDPOINT,
     SET_NEXT_PLAYER,
+    APPLY_VOLUME_SHAPER,
+    GET_VOLUME_SHAPER_STATE,
     // ModDrm
     PREPARE_DRM,
     RELEASE_DRM,
@@ -468,6 +470,57 @@
         return err;
     }
 
+    virtual VolumeShaper::Status applyVolumeShaper(
+            const sp<VolumeShaper::Configuration>& configuration,
+            const sp<VolumeShaper::Operation>& operation) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor());
+
+        status_t tmp;
+        status_t status = configuration.get() == nullptr
+                ? data.writeInt32(0)
+                : (tmp = data.writeInt32(1)) != NO_ERROR
+                    ? tmp : configuration->writeToParcel(&data);
+        if (status != NO_ERROR) {
+            return VolumeShaper::Status(status);
+        }
+
+        status = operation.get() == nullptr
+                ? status = data.writeInt32(0)
+                : (tmp = data.writeInt32(1)) != NO_ERROR
+                    ? tmp : operation->writeToParcel(&data);
+        if (status != NO_ERROR) {
+            return VolumeShaper::Status(status);
+        }
+
+        int32_t remoteVolumeShaperStatus;
+        status = remote()->transact(APPLY_VOLUME_SHAPER, data, &reply);
+        if (status == NO_ERROR) {
+            status = reply.readInt32(&remoteVolumeShaperStatus);
+        }
+        if (status != NO_ERROR) {
+            return VolumeShaper::Status(status);
+        }
+        return VolumeShaper::Status(remoteVolumeShaperStatus);
+    }
+
+    virtual sp<VolumeShaper::State> getVolumeShaperState(int id) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor());
+
+        data.writeInt32(id);
+        status_t status = remote()->transact(GET_VOLUME_SHAPER_STATE, data, &reply);
+        if (status != NO_ERROR) {
+            return nullptr;
+        }
+        sp<VolumeShaper::State> state = new VolumeShaper::State();
+        status = state->readFromParcel(reply);
+        if (status != NO_ERROR) {
+            return nullptr;
+        }
+        return state;
+    }
+
     // ModDrm
     status_t prepareDrm(const uint8_t uuid[16], const int mode)
     {
@@ -893,6 +946,43 @@
             return NO_ERROR;
         } break;
 
+        case APPLY_VOLUME_SHAPER: {
+            CHECK_INTERFACE(IMediaPlayer, data, reply);
+            sp<VolumeShaper::Configuration> configuration;
+            sp<VolumeShaper::Operation> operation;
+
+            int32_t present;
+            status_t status = data.readInt32(&present);
+            if (status == NO_ERROR && present != 0) {
+                configuration = new VolumeShaper::Configuration();
+                status = configuration->readFromParcel(data);
+            }
+            if (status == NO_ERROR) {
+                status = data.readInt32(&present);
+            }
+            if (status == NO_ERROR && present != 0) {
+                operation = new VolumeShaper::Operation();
+                status = operation->readFromParcel(data);
+            }
+            if (status == NO_ERROR) {
+                status = (status_t)applyVolumeShaper(configuration, operation);
+            }
+            reply->writeInt32(status);
+            return NO_ERROR;
+        } break;
+        case GET_VOLUME_SHAPER_STATE: {
+            CHECK_INTERFACE(IMediaPlayer, data, reply);
+            int id;
+            status_t status = data.readInt32(&id);
+            if (status == NO_ERROR) {
+                sp<VolumeShaper::State> state = getVolumeShaperState(id);
+                if (state.get() != nullptr) {
+                     status = state->writeToParcel(reply);
+                }
+            }
+            return NO_ERROR;
+        } break;
+
         // ModDrm
         case PREPARE_DRM: {
             CHECK_INTERFACE(IMediaPlayer, data, reply);
diff --git a/media/libmedia/OMXBuffer.cpp b/media/libmedia/OMXBuffer.cpp
index 71d2908..6d54a13 100644
--- a/media/libmedia/OMXBuffer.cpp
+++ b/media/libmedia/OMXBuffer.cpp
@@ -90,6 +90,13 @@
 
         case kBufferTypeANWBuffer:
         {
+            if (mGraphicBuffer == NULL) {
+                return parcel->writeBool(false);
+            }
+            status_t err = parcel->writeBool(true);
+            if (err != OK) {
+                return err;
+            }
             return parcel->write(*mGraphicBuffer);
         }
 
@@ -130,15 +137,21 @@
 
         case kBufferTypeANWBuffer:
         {
-            sp<GraphicBuffer> buffer = new GraphicBuffer();
-
-            status_t err = parcel->read(*buffer);
-
+            bool notNull;
+            status_t err = parcel->readBool(&notNull);
             if (err != OK) {
                 return err;
             }
-
-            mGraphicBuffer = buffer;
+            if (notNull) {
+                sp<GraphicBuffer> buffer = new GraphicBuffer();
+                status_t err = parcel->read(*buffer);
+                if (err != OK) {
+                    return err;
+                }
+                mGraphicBuffer = buffer;
+            } else {
+                mGraphicBuffer = nullptr;
+            }
             break;
         }
 
diff --git a/media/libmedia/TypeConverter.cpp b/media/libmedia/TypeConverter.cpp
index 8ce2b9f..bead69a 100644
--- a/media/libmedia/TypeConverter.cpp
+++ b/media/libmedia/TypeConverter.cpp
@@ -111,6 +111,7 @@
     MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_SYNC),
     MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_IEC958_NONAUDIO),
     MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_DIRECT_PCM),
+    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_MMAP_NOIRQ),
     TERMINATOR
 };
 
@@ -122,6 +123,7 @@
     MAKE_STRING_FROM_ENUM(AUDIO_INPUT_FLAG_HW_HOTWORD),
     MAKE_STRING_FROM_ENUM(AUDIO_INPUT_FLAG_RAW),
     MAKE_STRING_FROM_ENUM(AUDIO_INPUT_FLAG_SYNC),
+    MAKE_STRING_FROM_ENUM(AUDIO_INPUT_FLAG_MMAP_NOIRQ),
     TERMINATOR
 };
 
diff --git a/media/libmedia/mediaplayer.cpp b/media/libmedia/mediaplayer.cpp
index 2feb035..dfc2e1b 100644
--- a/media/libmedia/mediaplayer.cpp
+++ b/media/libmedia/mediaplayer.cpp
@@ -991,6 +991,27 @@
     return mPlayer->setNextPlayer(next == NULL ? NULL : next->mPlayer);
 }
 
+VolumeShaper::Status MediaPlayer::applyVolumeShaper(
+        const sp<VolumeShaper::Configuration>& configuration,
+        const sp<VolumeShaper::Operation>& operation)
+{
+    Mutex::Autolock _l(mLock);
+    if (mPlayer == nullptr) {
+        return VolumeShaper::Status(NO_INIT);
+    }
+    VolumeShaper::Status status = mPlayer->applyVolumeShaper(configuration, operation);
+    return status;
+}
+
+sp<VolumeShaper::State> MediaPlayer::getVolumeShaperState(int id)
+{
+    Mutex::Autolock _l(mLock);
+    if (mPlayer == nullptr) {
+        return nullptr;
+    }
+    return mPlayer->getVolumeShaperState(id);
+}
+
 // ModDrm
 status_t MediaPlayer::prepareDrm(const uint8_t uuid[16], const int mode)
 {
diff --git a/media/libmediaplayerservice/MediaPlayerService.cpp b/media/libmediaplayerservice/MediaPlayerService.cpp
index 2d4c475..cdae456 100644
--- a/media/libmediaplayerservice/MediaPlayerService.cpp
+++ b/media/libmediaplayerservice/MediaPlayerService.cpp
@@ -1147,6 +1147,42 @@
     return OK;
 }
 
+VolumeShaper::Status MediaPlayerService::Client::applyVolumeShaper(
+        const sp<VolumeShaper::Configuration>& configuration,
+        const sp<VolumeShaper::Operation>& operation) {
+    // for hardware output, call player instead
+    ALOGV("Client::applyVolumeShaper(%p)", this);
+    sp<MediaPlayerBase> p = getPlayer();
+    {
+        Mutex::Autolock l(mLock);
+        if (p != 0 && p->hardwareOutput()) {
+            // TODO: investigate internal implementation
+            return VolumeShaper::Status(INVALID_OPERATION);
+        }
+        if (mAudioOutput.get() != nullptr) {
+            return mAudioOutput->applyVolumeShaper(configuration, operation);
+        }
+    }
+    return VolumeShaper::Status(INVALID_OPERATION);
+}
+
+sp<VolumeShaper::State> MediaPlayerService::Client::getVolumeShaperState(int id) {
+    // for hardware output, call player instead
+    ALOGV("Client::getVolumeShaperState(%p)", this);
+    sp<MediaPlayerBase> p = getPlayer();
+    {
+        Mutex::Autolock l(mLock);
+        if (p != 0 && p->hardwareOutput()) {
+            // TODO: investigate internal implementation.
+            return nullptr;
+        }
+        if (mAudioOutput.get() != nullptr) {
+            return mAudioOutput->getVolumeShaperState(id);
+        }
+    }
+    return nullptr;
+}
+
 status_t MediaPlayerService::Client::seekTo(int msec, MediaPlayerSeekMode mode)
 {
     ALOGV("[%d] seekTo(%d, %d)", mConnId, msec, mode);
@@ -2146,6 +2182,27 @@
     return NO_ERROR;
 }
 
+VolumeShaper::Status MediaPlayerService::AudioOutput::applyVolumeShaper(
+                const sp<VolumeShaper::Configuration>& configuration,
+                const sp<VolumeShaper::Operation>& operation)
+{
+    Mutex::Autolock lock(mLock);
+    ALOGV("AudioOutput::applyVolumeShaper");
+    if (mTrack != 0) {
+        return mTrack->applyVolumeShaper(configuration, operation);
+    }
+    return VolumeShaper::Status(INVALID_OPERATION);
+}
+
+sp<VolumeShaper::State> MediaPlayerService::AudioOutput::getVolumeShaperState(int id)
+{
+    Mutex::Autolock lock(mLock);
+    if (mTrack != 0) {
+        return mTrack->getVolumeShaperState(id);
+    }
+    return nullptr;
+}
+
 // static
 void MediaPlayerService::AudioOutput::CallbackWrapper(
         int event, void *cookie, void *info) {
diff --git a/media/libmediaplayerservice/MediaPlayerService.h b/media/libmediaplayerservice/MediaPlayerService.h
index 819973e..cbaf21c 100644
--- a/media/libmediaplayerservice/MediaPlayerService.h
+++ b/media/libmediaplayerservice/MediaPlayerService.h
@@ -129,6 +129,11 @@
         virtual status_t        setParameters(const String8& keyValuePairs);
         virtual String8         getParameters(const String8& keys);
 
+        virtual VolumeShaper::Status applyVolumeShaper(
+                                        const sp<VolumeShaper::Configuration>& configuration,
+                                        const sp<VolumeShaper::Operation>& operation) override;
+        virtual sp<VolumeShaper::State> getVolumeShaperState(int id) override;
+
     private:
         static void             setMinBufferCount();
         static void             CallbackWrapper(
@@ -323,6 +328,11 @@
         virtual status_t        getRetransmitEndpoint(struct sockaddr_in* endpoint);
         virtual status_t        setNextPlayer(const sp<IMediaPlayer>& player);
 
+        virtual VolumeShaper::Status applyVolumeShaper(
+                                        const sp<VolumeShaper::Configuration>& configuration,
+                                        const sp<VolumeShaper::Operation>& operation) override;
+        virtual sp<VolumeShaper::State> getVolumeShaperState(int id) override;
+
         sp<MediaPlayerBase>     createPlayer(player_type playerType);
 
         virtual status_t        setDataSource(
diff --git a/media/libmediaplayerservice/StagefrightRecorder.cpp b/media/libmediaplayerservice/StagefrightRecorder.cpp
index 9ce65c4..d00e377 100644
--- a/media/libmediaplayerservice/StagefrightRecorder.cpp
+++ b/media/libmediaplayerservice/StagefrightRecorder.cpp
@@ -275,6 +275,7 @@
 }
 
 status_t StagefrightRecorder::setNextOutputFile(int fd) {
+    Mutex::Autolock autolock(mLock);
     // Only support MPEG4
     if (mOutputFormat != OUTPUT_FORMAT_MPEG_4) {
         ALOGE("Only MP4 file format supports setting next output file");
@@ -290,6 +291,10 @@
     // start with a clean, empty file
     ftruncate(fd, 0);
     int nextFd = dup(fd);
+    if (mWriter == NULL) {
+        ALOGE("setNextOutputFile failed. Writer has been freed");
+        return INVALID_OPERATION;
+    }
     return mWriter->setNextFd(nextFd);
 }
 
@@ -851,6 +856,8 @@
 }
 
 status_t StagefrightRecorder::prepare() {
+    ALOGV("prepare");
+    Mutex::Autolock autolock(mLock);
     if (mVideoSource == VIDEO_SOURCE_SURFACE) {
         return prepareInternal();
     }
@@ -859,6 +866,7 @@
 
 status_t StagefrightRecorder::start() {
     ALOGV("start");
+    Mutex::Autolock autolock(mLock);
     if (mOutputFd < 0) {
         ALOGE("Output file descriptor is invalid");
         return INVALID_OPERATION;
@@ -1867,6 +1875,7 @@
 
 status_t StagefrightRecorder::stop() {
     ALOGV("stop");
+    Mutex::Autolock autolock(mLock);
     status_t err = OK;
 
     if (mCaptureFpsEnable && mCameraSourceTimeLapse != NULL) {
@@ -1984,6 +1993,7 @@
 status_t StagefrightRecorder::dump(
         int fd, const Vector<String16>& args) const {
     ALOGV("dump");
+    Mutex::Autolock autolock(mLock);
     const size_t SIZE = 256;
     char buffer[SIZE];
     String8 result;
diff --git a/media/libmediaplayerservice/StagefrightRecorder.h b/media/libmediaplayerservice/StagefrightRecorder.h
index 870c5d0..b7d0b0e 100644
--- a/media/libmediaplayerservice/StagefrightRecorder.h
+++ b/media/libmediaplayerservice/StagefrightRecorder.h
@@ -43,7 +43,6 @@
 struct StagefrightRecorder : public MediaRecorderBase {
     explicit StagefrightRecorder(const String16 &opPackageName);
     virtual ~StagefrightRecorder();
-
     virtual status_t init();
     virtual status_t setAudioSource(audio_source_t as);
     virtual status_t setVideoSource(video_source vs);
@@ -73,6 +72,7 @@
     virtual sp<IGraphicBufferProducer> querySurfaceMediaSource() const;
 
 private:
+    mutable Mutex mLock;
     sp<hardware::ICamera> mCamera;
     sp<ICameraRecordingProxy> mCameraProxy;
     sp<IGraphicBufferProducer> mPreviewSurface;
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.cpp b/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.cpp
index 1d62498..0a0a8aa 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.cpp
@@ -634,6 +634,11 @@
     sp<MediaCodecBuffer> buffer;
     mCodec->getOutputBuffer(index, &buffer);
 
+    if (buffer == NULL) {
+        handleError(UNKNOWN_ERROR);
+        return false;
+    }
+
     if (index >= mOutputBuffers.size()) {
         for (size_t i = mOutputBuffers.size(); i <= index; ++i) {
             mOutputBuffers.add();
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.cpp b/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.cpp
index 42e95da..9350440 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.cpp
@@ -405,10 +405,10 @@
     msg->setInt32("flags", flags);
 
     sp<AMessage> response;
-    msg->postAndAwaitResponse(&response);
+    status_t postStatus = msg->postAndAwaitResponse(&response);
 
     int32_t err;
-    if (!response->findInt32("err", &err)) {
+    if (postStatus != OK || response.get() == nullptr || !response->findInt32("err", &err)) {
         err = INVALID_OPERATION;
     } else if (err == OK && isOffloaded != NULL) {
         int32_t offload;
diff --git a/media/libnbaio/NBLog.cpp b/media/libnbaio/NBLog.cpp
index f019df5..7c2523d 100644
--- a/media/libnbaio/NBLog.cpp
+++ b/media/libnbaio/NBLog.cpp
@@ -105,6 +105,7 @@
     if (!mEnabled) {
         return;
     }
+    LOG_ALWAYS_FATAL_IF(string == NULL, "Attempted to log NULL string");
     size_t length = strlen(string);
     if (length > Entry::kMaxLength) {
         length = Entry::kMaxLength;
@@ -147,16 +148,136 @@
     }
     struct timespec ts;
     if (!clock_gettime(CLOCK_MONOTONIC, &ts)) {
-        log(EVENT_TIMESTAMP, &ts, sizeof(struct timespec));
+        log(EVENT_TIMESTAMP, &ts, sizeof(ts));
     }
 }
 
-void NBLog::Writer::logTimestamp(const struct timespec& ts)
+void NBLog::Writer::logTimestamp(const struct timespec &ts)
 {
     if (!mEnabled) {
         return;
     }
-    log(EVENT_TIMESTAMP, &ts, sizeof(struct timespec));
+    log(EVENT_TIMESTAMP, &ts, sizeof(ts));
+}
+
+void NBLog::Writer::logInteger(const int x)
+{
+    if (!mEnabled) {
+        return;
+    }
+    log(EVENT_INTEGER, &x, sizeof(x));
+}
+
+void NBLog::Writer::logFloat(const float x)
+{
+    if (!mEnabled) {
+        return;
+    }
+    log(EVENT_FLOAT, &x, sizeof(x));
+}
+
+void NBLog::Writer::logPID()
+{
+    if (!mEnabled) {
+        return;
+    }
+    pid_t id = ::getpid();
+    // TODO: append process name to pid
+    // const char* path = sprintf("/proc/%d/status", id);
+    // FILE* f = fopen(path);
+    // size_t length = 30
+    // char buffer[length];
+    // getline(&buffer, &length, f);
+    // char* pidTag = sprintf("")
+    log(EVENT_PID, &id, sizeof(pid_t));
+}
+
+void NBLog::Writer::logStart(const char *fmt)
+{
+    if (!mEnabled) {
+        return;
+    }
+    size_t length = strlen(fmt);
+    if (length > Entry::kMaxLength) {
+        length = Entry::kMaxLength;
+    }
+    log(EVENT_START_FMT, fmt, length);
+}
+
+void NBLog::Writer::logEnd()
+{
+    if (!mEnabled) {
+        return;
+    }
+    Entry entry = Entry(EVENT_END_FMT, NULL, 0);
+    log(&entry, true);
+}
+
+void NBLog::Writer::logFormat(const char *fmt, ...)
+{
+    if (!mEnabled) {
+        return;
+    }
+
+    va_list ap;
+    va_start(ap, fmt);
+    Writer::logVFormat(fmt, ap);
+    va_end(ap);
+}
+
+void NBLog::Writer::logVFormat(const char *fmt, va_list argp)
+{
+    if (!mEnabled) {
+        return;
+    }
+    Writer::logStart(fmt);
+    int i;
+    double f;
+    char* s;
+    struct timespec t;
+    Writer::logTimestamp();
+    for (const char *p = fmt; *p != '\0'; p++) {
+        // TODO: implement more complex formatting such as %.3f
+        if (*p != '%') {
+            continue;
+        }
+        switch(*++p) {
+        case 's': // string
+            s = va_arg(argp, char *);
+            Writer::log(s);
+            break;
+
+        case 't': // timestamp
+            t = va_arg(argp, struct timespec);
+            Writer::logTimestamp(t);
+            break;
+
+        case 'd': // integer
+            i = va_arg(argp, int);
+            Writer::logInteger(i);
+            break;
+
+        case 'f': // float
+            f = va_arg(argp, double); // float arguments are promoted to double in vararg lists
+            Writer::logFloat((float)f);
+            break;
+
+        case 'p': // pid
+            Writer::logPID();
+            break;
+
+        // the "%\0" case finishes parsing
+        case '\0':
+            --p;
+            break;
+
+        default:
+            ALOGW("NBLog Writer parsed invalid format specifier: %c", *p);
+            break;
+        // the '%' case is handled using the formatted string in the reader
+        }
+    }
+    Writer::logEnd();
 }
 
 void NBLog::Writer::log(Event event, const void *data, size_t length)
@@ -173,6 +294,10 @@
     switch (event) {
     case EVENT_STRING:
     case EVENT_TIMESTAMP:
+    case EVENT_INTEGER:
+    case EVENT_FLOAT:
+    case EVENT_PID:
+    case EVENT_START_FMT:
         break;
     case EVENT_RESERVED:
     default:
@@ -257,12 +382,43 @@
     Writer::logTimestamp();
 }
 
-void NBLog::LockedWriter::logTimestamp(const struct timespec& ts)
+void NBLog::LockedWriter::logTimestamp(const struct timespec &ts)
 {
     Mutex::Autolock _l(mLock);
     Writer::logTimestamp(ts);
 }
 
+void NBLog::LockedWriter::logInteger(const int x)
+{
+    Mutex::Autolock _l(mLock);
+    Writer::logInteger(x);
+}
+
+void NBLog::LockedWriter::logFloat(const float x)
+{
+    Mutex::Autolock _l(mLock);
+    Writer::logFloat(x);
+}
+
+void NBLog::LockedWriter::logPID()
+{
+    Mutex::Autolock _l(mLock);
+    Writer::logPID();
+}
+
+void NBLog::LockedWriter::logStart(const char *fmt)
+{
+    Mutex::Autolock _l(mLock);
+    Writer::logStart(fmt);
+}
+
+
+void NBLog::LockedWriter::logEnd()
+{
+    Mutex::Autolock _l(mLock);
+    Writer::logEnd();
+}
+
 bool NBLog::LockedWriter::isEnabled() const
 {
     Mutex::Autolock _l(mLock);
@@ -420,6 +576,22 @@
                     (int) (ts.tv_nsec / 1000000));
             deferredTimestamp = true;
             } break;
+        case EVENT_INTEGER:
+            appendInt(&body, data);
+            break;
+        case EVENT_FLOAT:
+            appendFloat(&body, data);
+            break;
+        case EVENT_PID:
+            appendPID(&body, data);
+            break;
+        case EVENT_START_FMT:
+            advance += handleFormat((const char*) &copy[i + 2], length,
+                                    &copy[i + Entry::kOverhead + length], &timestamp, &body);
+            break;
+        case EVENT_END_FMT:
+            body.appendFormat("warning: got to end format event");
+            break;
         case EVENT_RESERVED:
         default:
             body.appendFormat("warning: unknown event %d", event);
@@ -437,7 +609,7 @@
     }
 }
 
-void NBLog::Reader::dumpLine(const String8& timestamp, String8& body)
+void NBLog::Reader::dumpLine(const String8 &timestamp, String8 &body)
 {
     if (mFd >= 0) {
         dprintf(mFd, "%.*s%s %s\n", mIndent, "", timestamp.string(), body.string());
@@ -452,4 +624,104 @@
     return iMemory != 0 && mIMemory != 0 && iMemory->pointer() == mIMemory->pointer();
 }
 
+void NBLog::appendTimestamp(String8 *body, const void *data) {
+    struct timespec ts;
+    memcpy(&ts, data, sizeof(struct timespec));
+    body->appendFormat("[%d.%03d]", (int) ts.tv_sec,
+                    (int) (ts.tv_nsec / 1000000));
+}
+
+void NBLog::appendInt(String8 *body, const void *data) {
+    int x = *((int*) data);
+    body->appendFormat("<%d>", x);
+}
+
+void NBLog::appendFloat(String8 *body, const void *data) {
+    float f;
+    memcpy(&f, data, sizeof(float));
+    body->appendFormat("<%f>", f);
+}
+
+void NBLog::appendPID(String8 *body, const void* data) {
+    pid_t id = *((pid_t*) data);
+    body->appendFormat("<PID: %d>", id);
+}
+
+int NBLog::handleFormat(const char *fmt, size_t fmt_length, const uint8_t *data,
+                        String8 *timestamp, String8 *body) {
+    if (data[0] != EVENT_TIMESTAMP) {
+        ALOGW("NBLog Reader Expected timestamp event %d, got %d", EVENT_TIMESTAMP, data[0]);
+    }
+    struct timespec ts;
+    memcpy(&ts, &data[2], sizeof(ts));
+    timestamp->clear();
+    timestamp->appendFormat("[%d.%03d]", (int) ts.tv_sec,
+                    (int) (ts.tv_nsec / 1000000));
+    size_t data_offset = Entry::kOverhead + sizeof ts;
+
+    for (size_t fmt_offset = 0; fmt_offset < fmt_length; ++fmt_offset) {
+        if (fmt[fmt_offset] != '%') {
+            body->append(&fmt[fmt_offset], 1); // TODO optimize to write consecutive strings at once
+            continue;
+        }
+        if (fmt[++fmt_offset] == '%') {
+            body->append("%");
+            continue;
+        }
+        if (fmt_offset == fmt_length) {
+            continue;
+        }
+
+        NBLog::Event event = (NBLog::Event) data[data_offset];
+        size_t length = data[data_offset + 1];
+
+        // TODO check length for event type is correct
+        if(length != data[data_offset + length + 2]) {
+            ALOGW("NBLog Reader recieved different lengths %zu and %d for event %d", length,
+                  data[data_offset + length + 2], event);
+            body->append("<invalid entry>");
+            ++fmt_offset;
+            continue;
+        }
+
+        // TODO: implement more complex formatting such as %.3f
+        void * datum = (void*) &data[data_offset + 2]; // pointer to the current event data
+        switch(fmt[fmt_offset])
+        {
+        case 's': // string
+            ALOGW_IF(event != EVENT_STRING, "NBLog Reader incompatible event for string specifier: %d", event);
+            body->append((const char*) datum, length);
+            break;
+
+        case 't': // timestamp
+            ALOGW_IF(event != EVENT_TIMESTAMP, "NBLog Reader incompatible event for timestamp specifier: %d", event);
+            appendTimestamp(body, datum);
+            break;
+
+        case 'd': // integer
+            ALOGW_IF(event != EVENT_INTEGER, "NBLog Reader incompatible event for integer specifier: %d", event);
+            appendInt(body, datum);
+
+            break;
+
+        case 'f': // float
+            ALOGW_IF(event != EVENT_FLOAT, "NBLog Reader incompatible event for float specifier: %d", event);
+            appendFloat(body, datum);
+            break;
+
+        case 'p': // pid
+            ALOGW_IF(event != EVENT_PID, "NBLog Reader incompatible event for pid specifier: %d", event);
+            appendPID(body, datum);
+            break;
+
+        default:
+            ALOGW("NBLog Reader encountered unknown character %c", fmt[fmt_offset]);
+        }
+
+        data_offset += length + Entry::kOverhead;
+
+    }
+    return data_offset + Entry::kOverhead; // data offset + size of END_FMT event
+}
+
 }   // namespace android
diff --git a/media/liboboe/README.md b/media/liboboe/README.md
deleted file mode 100644
index 9f2c249..0000000
--- a/media/liboboe/README.md
+++ /dev/null
@@ -1 +0,0 @@
-AAudio Audio input/output API
diff --git a/media/libstagefright/DataSource.cpp b/media/libstagefright/DataSource.cpp
index 4a965ba..ded79f3 100644
--- a/media/libstagefright/DataSource.cpp
+++ b/media/libstagefright/DataSource.cpp
@@ -130,7 +130,7 @@
         }
 
         String8 cacheConfig;
-        bool disconnectAtHighwatermark;
+        bool disconnectAtHighwatermark = false;
         KeyedVector<String8, String8> nonCacheSpecificHeaders;
         if (headers != NULL) {
             nonCacheSpecificHeaders = *headers;
diff --git a/media/libstagefright/MPEG4Extractor.cpp b/media/libstagefright/MPEG4Extractor.cpp
index 87d7d3c..0dd3e88 100644
--- a/media/libstagefright/MPEG4Extractor.cpp
+++ b/media/libstagefright/MPEG4Extractor.cpp
@@ -4515,8 +4515,8 @@
         // fall through
     }
 
-    off64_t offset;
-    size_t size;
+    off64_t offset = 0;
+    size_t size = 0;
     uint32_t cts, stts;
     bool isSyncSample;
     bool newBuffer = false;
@@ -5066,6 +5066,10 @@
     return NULL;
 }
 
+void MPEG4Extractor::populateMetrics() {
+    ALOGV("MPEG4Extractor::populateMetrics");
+}
+
 static bool LegacySniffMPEG4(
         const sp<DataSource> &source, String8 *mimeType, float *confidence) {
     uint8_t header[8];
diff --git a/media/libstagefright/MediaExtractor.cpp b/media/libstagefright/MediaExtractor.cpp
index 677d43e..62c0d8a 100644
--- a/media/libstagefright/MediaExtractor.cpp
+++ b/media/libstagefright/MediaExtractor.cpp
@@ -55,7 +55,7 @@
 namespace android {
 
 // key for media statistics
-static const char *KeyName_Extractor = "extractor";
+static const char *kKeyExtractor = "extractor";
 // attrs for media statistics
 
 MediaExtractor::MediaExtractor() {
@@ -67,7 +67,7 @@
 
     mAnalyticsItem = NULL;
     if (MEDIA_LOG) {
-        mAnalyticsItem = new MediaAnalyticsItem(KeyName_Extractor);
+        mAnalyticsItem = new MediaAnalyticsItem(kKeyExtractor);
         (void) mAnalyticsItem->generateSessionID();
     }
 }
@@ -93,6 +93,23 @@
     return new MetaData;
 }
 
+status_t MediaExtractor::getMetrics(Parcel *reply) {
+
+    if (mAnalyticsItem == NULL || reply == NULL) {
+        return UNKNOWN_ERROR;
+    }
+
+    populateMetrics();
+    mAnalyticsItem->writeToParcel(reply);
+
+    return OK;
+}
+
+void MediaExtractor::populateMetrics() {
+    ALOGV("MediaExtractor::populateMetrics");
+    // normally overridden in subclasses
+}
+
 uint32_t MediaExtractor::flags() const {
     return CAN_SEEK_BACKWARD | CAN_SEEK_FORWARD | CAN_PAUSE | CAN_SEEK;
 }
@@ -247,24 +264,23 @@
        // track the container format (mpeg, aac, wvm, etc)
        if (MEDIA_LOG) {
           if (ret->mAnalyticsItem != NULL) {
+              size_t ntracks = ret->countTracks();
               ret->mAnalyticsItem->setCString("fmt",  ret->name());
               // tracks (size_t)
-              ret->mAnalyticsItem->setInt32("ntrk",  ret->countTracks());
+              ret->mAnalyticsItem->setInt32("ntrk",  ntracks);
               // metadata
               sp<MetaData> pMetaData = ret->getMetaData();
               if (pMetaData != NULL) {
                 String8 xx = pMetaData->toString();
-                ALOGD("metadata says: %s", xx.string());
-                // can grab various fields like:
                 // 'titl' -- but this verges into PII
                 // 'mime'
                 const char *mime = NULL;
                 if (pMetaData->findCString(kKeyMIMEType, &mime)) {
                     ret->mAnalyticsItem->setCString("mime",  mime);
                 }
-                // what else is interesting here?
+                // what else is interesting and not already available?
               }
-          }
+	  }
        }
     }
 
diff --git a/media/libstagefright/NuMediaExtractor.cpp b/media/libstagefright/NuMediaExtractor.cpp
index d25ce6c..1c1acb0 100644
--- a/media/libstagefright/NuMediaExtractor.cpp
+++ b/media/libstagefright/NuMediaExtractor.cpp
@@ -569,6 +569,11 @@
     return OK;
 }
 
+status_t NuMediaExtractor::getMetrics(Parcel *reply) {
+    status_t status = mImpl->getMetrics(reply);
+    return status;
+}
+
 bool NuMediaExtractor::getTotalBitrate(int64_t *bitrate) const {
     if (mTotalBitrate >= 0) {
         *bitrate = mTotalBitrate;
diff --git a/media/libstagefright/SampleIterator.cpp b/media/libstagefright/SampleIterator.cpp
index 54c9fa3..4134698 100644
--- a/media/libstagefright/SampleIterator.cpp
+++ b/media/libstagefright/SampleIterator.cpp
@@ -305,8 +305,16 @@
         return ERROR_OUT_OF_RANGE;
     }
 
-    while (sampleIndex >= mTTSSampleIndex + mTTSCount) {
-        if (mTimeToSampleIndex == mTable->mTimeToSampleCount) {
+    while (true) {
+        if (mTTSSampleIndex > UINT32_MAX - mTTSCount) {
+            return ERROR_OUT_OF_RANGE;
+        }
+        if(sampleIndex < mTTSSampleIndex + mTTSCount) {
+            break;
+        }
+        if (mTimeToSampleIndex == mTable->mTimeToSampleCount ||
+            (mTTSDuration != 0 && mTTSCount > UINT32_MAX / mTTSDuration) ||
+            mTTSSampleTime > UINT32_MAX - (mTTSCount * mTTSDuration)) {
             return ERROR_OUT_OF_RANGE;
         }
 
diff --git a/media/libstagefright/codecs/mp3dec/src/pv_mp3dec_fxd_op_c_equivalent.h b/media/libstagefright/codecs/mp3dec/src/pv_mp3dec_fxd_op_c_equivalent.h
index 337bff0..adb0dd4 100644
--- a/media/libstagefright/codecs/mp3dec/src/pv_mp3dec_fxd_op_c_equivalent.h
+++ b/media/libstagefright/codecs/mp3dec/src/pv_mp3dec_fxd_op_c_equivalent.h
@@ -50,6 +50,7 @@
 
 
 
+    __attribute__((no_sanitize("integer")))
     __inline int32 pv_abs(int32 a)
     {
         int32 b = (a < 0) ? -a : a;
@@ -59,49 +60,58 @@
 
 
 
+    __attribute__((no_sanitize("integer")))
     __inline Int32 fxp_mul32_Q30(const Int32 a, const Int32 b)
     {
         return (Int32)(((int64)(a) * b) >> 30);
     }
 
+    __attribute__((no_sanitize("integer")))
     __inline Int32 fxp_mac32_Q30(const Int32 a, const Int32 b, Int32 L_add)
     {
         return (L_add + (Int32)(((int64)(a) * b) >> 30));
     }
 
+    __attribute__((no_sanitize("integer")))
     __inline Int32 fxp_mul32_Q32(const Int32 a, const Int32 b)
     {
         return (Int32)(((int64)(a) * b) >> 32);
     }
 
 
+    __attribute__((no_sanitize("integer")))
     __inline Int32 fxp_mul32_Q28(const Int32 a, const Int32 b)
     {
         return (Int32)(((int64)(a) * b) >> 28);
     }
 
+    __attribute__((no_sanitize("integer")))
     __inline Int32 fxp_mul32_Q27(const Int32 a, const Int32 b)
     {
         return (Int32)(((int64)(a) * b) >> 27);
     }
 
+    __attribute__((no_sanitize("integer")))
     __inline Int32 fxp_mul32_Q26(const Int32 a, const Int32 b)
     {
         return (Int32)(((int64)(a) * b) >> 26);
     }
 
 
+    __attribute__((no_sanitize("integer")))
     __inline Int32 fxp_mac32_Q32(Int32 L_add, const Int32 a, const Int32 b)
     {
         return (L_add + (Int32)(((int64)(a) * b) >> 32));
     }
 
+    __attribute__((no_sanitize("integer")))
     __inline Int32 fxp_msb32_Q32(Int32 L_sub, const Int32 a, const Int32 b)
     {
         return (L_sub - ((Int32)(((int64)(a) * b) >> 32)));
     }
 
 
+    __attribute__((no_sanitize("integer")))
     __inline Int32 fxp_mul32_Q29(const Int32 a, const Int32 b)
     {
         return (Int32)(((int64)(a) * b) >> 29);
diff --git a/media/libstagefright/codecs/mp3dec/src/pvmp3_dct_16.cpp b/media/libstagefright/codecs/mp3dec/src/pvmp3_dct_16.cpp
index 9b9ae4b..cc99d5c 100644
--- a/media/libstagefright/codecs/mp3dec/src/pvmp3_dct_16.cpp
+++ b/media/libstagefright/codecs/mp3dec/src/pvmp3_dct_16.cpp
@@ -149,6 +149,7 @@
 ; FUNCTION CODE
 ----------------------------------------------------------------------------*/
 
+__attribute__((no_sanitize("integer")))
 void pvmp3_dct_16(int32 vec[], int32 flag)
 {
     int32 tmp0;
@@ -308,6 +309,7 @@
 /*----------------------------------------------------------------------------
 ; FUNCTION CODE
 ----------------------------------------------------------------------------*/
+__attribute__((no_sanitize("integer")))
 void pvmp3_merge_in_place_N32(int32 vec[])
 {
 
@@ -366,6 +368,7 @@
 
 
 
+__attribute__((no_sanitize("integer")))
 void pvmp3_split(int32 *vect)
 {
 
diff --git a/media/libstagefright/codecs/mp3dec/src/pvmp3_dct_9.cpp b/media/libstagefright/codecs/mp3dec/src/pvmp3_dct_9.cpp
index d30ce4a..bbb247d 100644
--- a/media/libstagefright/codecs/mp3dec/src/pvmp3_dct_9.cpp
+++ b/media/libstagefright/codecs/mp3dec/src/pvmp3_dct_9.cpp
@@ -117,6 +117,7 @@
 ; FUNCTION CODE
 ----------------------------------------------------------------------------*/
 
+__attribute__((no_sanitize("integer")))
 void pvmp3_dct_9(int32 vec[])
 {
 
diff --git a/media/libstagefright/codecs/mp3dec/src/pvmp3_mdct_18.cpp b/media/libstagefright/codecs/mp3dec/src/pvmp3_mdct_18.cpp
index 09a735b..324290e 100644
--- a/media/libstagefright/codecs/mp3dec/src/pvmp3_mdct_18.cpp
+++ b/media/libstagefright/codecs/mp3dec/src/pvmp3_mdct_18.cpp
@@ -129,6 +129,7 @@
 
 
 
+__attribute__((no_sanitize("integer")))
 void pvmp3_mdct_18(int32 vec[], int32 *history, const int32 *window)
 {
     int32 i;
diff --git a/media/libstagefright/include/MPEG4Extractor.h b/media/libstagefright/include/MPEG4Extractor.h
index fa05886..f847119 100644
--- a/media/libstagefright/include/MPEG4Extractor.h
+++ b/media/libstagefright/include/MPEG4Extractor.h
@@ -66,6 +66,8 @@
 protected:
     virtual ~MPEG4Extractor();
 
+    virtual void populateMetrics();
+
 private:
 
     struct PsshInfo {
diff --git a/media/libstagefright/omx/GraphicBufferSource.cpp b/media/libstagefright/omx/GraphicBufferSource.cpp
index 4909100..a0ddc28 100644
--- a/media/libstagefright/omx/GraphicBufferSource.cpp
+++ b/media/libstagefright/omx/GraphicBufferSource.cpp
@@ -43,6 +43,35 @@
 
 static const OMX_U32 kPortIndexInput = 0;
 
+class GraphicBufferSource::OmxBufferSource : public BnOMXBufferSource {
+public:
+    GraphicBufferSource* mSource;
+
+    OmxBufferSource(GraphicBufferSource* source): mSource(source) {
+    }
+
+    Status onOmxExecuting() override {
+        return mSource->onOmxExecuting();
+    }
+
+    Status onOmxIdle() override {
+        return mSource->onOmxIdle();
+    }
+
+    Status onOmxLoaded() override {
+        return mSource->onOmxLoaded();
+    }
+
+    Status onInputBufferAdded(int bufferId) override {
+        return mSource->onInputBufferAdded(bufferId);
+    }
+
+    Status onInputBufferEmptied(
+            int bufferId, const OMXFenceParcelable& fenceParcel) override {
+        return mSource->onInputBufferEmptied(bufferId, fenceParcel);
+    }
+};
+
 GraphicBufferSource::GraphicBufferSource() :
     mInitCheck(UNKNOWN_ERROR),
     mExecuting(false),
@@ -66,7 +95,8 @@
     mTimePerFrameUs(-1ll),
     mPrevCaptureUs(-1ll),
     mPrevFrameUs(-1ll),
-    mInputBufferTimeOffsetUs(0ll) {
+    mInputBufferTimeOffsetUs(0ll),
+    mOmxBufferSource(new OmxBufferSource(this)) {
     ALOGV("GraphicBufferSource");
 
     String8 name("GraphicBufferSource");
@@ -766,7 +796,7 @@
     // Do setInputSurface() first, the node will try to enable metadata
     // mode on input, and does necessary error checking. If this fails,
     // we can't use this input surface on the node.
-    status_t err = omxNode->setInputSurface(this);
+    status_t err = omxNode->setInputSurface(mOmxBufferSource);
     if (err != NO_ERROR) {
         ALOGE("Unable to set input surface: %d", err);
         return Status::fromServiceSpecificError(err);
diff --git a/media/libstagefright/omx/GraphicBufferSource.h b/media/libstagefright/omx/GraphicBufferSource.h
index 80fe078..153a035 100644
--- a/media/libstagefright/omx/GraphicBufferSource.h
+++ b/media/libstagefright/omx/GraphicBufferSource.h
@@ -55,7 +55,6 @@
  * things up until we're ready to go.
  */
 class GraphicBufferSource : public BnGraphicBufferSource,
-                            public BnOMXBufferSource,
                             public BufferQueue::ConsumerListener {
 public:
     GraphicBufferSource();
@@ -77,26 +76,26 @@
     // This is called when OMX transitions to OMX_StateExecuting, which means
     // we can start handing it buffers.  If we already have buffers of data
     // sitting in the BufferQueue, this will send them to the codec.
-    Status onOmxExecuting() override;
+    Status onOmxExecuting();
 
     // This is called when OMX transitions to OMX_StateIdle, indicating that
     // the codec is meant to return all buffers back to the client for them
     // to be freed. Do NOT submit any more buffers to the component.
-    Status onOmxIdle() override;
+    Status onOmxIdle();
 
     // This is called when OMX transitions to OMX_StateLoaded, indicating that
     // we are shutting down.
-    Status onOmxLoaded() override;
+    Status onOmxLoaded();
 
     // A "codec buffer", i.e. a buffer that can be used to pass data into
     // the encoder, has been allocated.  (This call does not call back into
     // OMXNodeInstance.)
-    Status onInputBufferAdded(int32_t bufferID) override;
+    Status onInputBufferAdded(int32_t bufferID);
 
     // Called from OnEmptyBufferDone.  If we have a BQ buffer available,
     // fill it with a new frame of data; otherwise, just mark it as available.
     Status onInputBufferEmptied(
-            int32_t bufferID, const OMXFenceParcelable& fenceParcel) override;
+            int32_t bufferID, const OMXFenceParcelable& fenceParcel);
 
     // Configure the buffer source to be used with an OMX node with the default
     // data space.
@@ -301,6 +300,9 @@
 
     ColorAspects mColorAspects;
 
+    class OmxBufferSource;
+    sp<OmxBufferSource> mOmxBufferSource;
+
     void onMessageReceived(const sp<AMessage> &msg);
 
     DISALLOW_EVIL_CONSTRUCTORS(GraphicBufferSource);
diff --git a/media/libstagefright/omx/hal/1.0/impl/Conversion.h b/media/libstagefright/omx/hal/1.0/impl/Conversion.h
index d27a496..68a3ed2 100644
--- a/media/libstagefright/omx/hal/1.0/impl/Conversion.h
+++ b/media/libstagefright/omx/hal/1.0/impl/Conversion.h
@@ -294,7 +294,7 @@
     if (!*nh) {
         return false;
     }
-    t->fence = inHidlHandle(*nh);
+    t->fence = *nh;
     switch (l.type) {
         case omx_message::EVENT:
             t->type = Message::Type::EVENT;
@@ -592,6 +592,16 @@
         }
         case OMXBuffer::kBufferTypeANWBuffer: {
             t->type = CodecBuffer::Type::ANW_BUFFER;
+            if (l.mGraphicBuffer == nullptr) {
+                t->attr.anwBuffer.width = 0;
+                t->attr.anwBuffer.height = 0;
+                t->attr.anwBuffer.stride = 0;
+                t->attr.anwBuffer.format = static_cast<PixelFormat>(1);
+                t->attr.anwBuffer.layerCount = 0;
+                t->attr.anwBuffer.usage = 0;
+                t->nativeHandle = hidl_handle();
+                return true;
+            }
             t->attr.anwBuffer.width = l.mGraphicBuffer->getWidth();
             t->attr.anwBuffer.height = l.mGraphicBuffer->getHeight();
             t->attr.anwBuffer.stride = l.mGraphicBuffer->getStride();
@@ -636,6 +646,10 @@
             return true;
         }
         case CodecBuffer::Type::ANW_BUFFER: {
+            if (t.nativeHandle.getNativeHandle() == nullptr) {
+                *l = OMXBuffer(sp<GraphicBuffer>(nullptr));
+                return true;
+            }
             *l = OMXBuffer(sp<GraphicBuffer>(new GraphicBuffer(
                     t.attr.anwBuffer.width,
                     t.attr.anwBuffer.height,
@@ -2082,6 +2096,7 @@
     t->transformHint = l.transformHint;
     t->numPendingBuffers = l.numPendingBuffers;
     t->nextFrameNumber = l.nextFrameNumber;
+    t->bufferReplaced = l.bufferReplaced;
     return true;
 }
 
@@ -2107,6 +2122,7 @@
     l->transformHint = t.transformHint;
     l->numPendingBuffers = t.numPendingBuffers;
     l->nextFrameNumber = t.nextFrameNumber;
+    l->bufferReplaced = t.bufferReplaced;
     return true;
 }
 
diff --git a/media/libstagefright/omx/hal/1.0/impl/WGraphicBufferSource.cpp b/media/libstagefright/omx/hal/1.0/impl/WGraphicBufferSource.cpp
index 9de8e3e..8ba2924 100644
--- a/media/libstagefright/omx/hal/1.0/impl/WGraphicBufferSource.cpp
+++ b/media/libstagefright/omx/hal/1.0/impl/WGraphicBufferSource.cpp
@@ -78,10 +78,6 @@
     return toBinderStatus(mBase->signalEndOfInputStream());
 }
 
-::android::IBinder* LWGraphicBufferSource::onAsBinder() {
-    return nullptr;
-}
-
 // TWGraphicBufferSource
 TWGraphicBufferSource::TWGraphicBufferSource(
         sp<LGraphicBufferSource> const& base) : mBase(base) {
@@ -89,47 +85,51 @@
 
 Return<void> TWGraphicBufferSource::configure(
         const sp<IOmxNode>& omxNode, Dataspace dataspace) {
-    return toHardwareStatus(mBase->configure(
-            new LWOmxNode(omxNode),
-            toRawDataspace(dataspace)));
+    mBase->configure(new LWOmxNode(omxNode), toRawDataspace(dataspace));
+    return Void();
 }
 
 Return<void> TWGraphicBufferSource::setSuspend(bool suspend) {
-    return toHardwareStatus(mBase->setSuspend(suspend));
+    mBase->setSuspend(suspend);
+    return Void();
 }
 
 Return<void> TWGraphicBufferSource::setRepeatPreviousFrameDelayUs(
         int64_t repeatAfterUs) {
-    return toHardwareStatus(mBase->setRepeatPreviousFrameDelayUs(
-            repeatAfterUs));
+    mBase->setRepeatPreviousFrameDelayUs(repeatAfterUs);
+    return Void();
 }
 
 Return<void> TWGraphicBufferSource::setMaxFps(float maxFps) {
-    return toHardwareStatus(mBase->setMaxFps(maxFps));
+    mBase->setMaxFps(maxFps);
+    return Void();
 }
 
 Return<void> TWGraphicBufferSource::setTimeLapseConfig(
         int64_t timePerFrameUs, int64_t timePerCaptureUs) {
-    return toHardwareStatus(mBase->setTimeLapseConfig(
-            timePerFrameUs, timePerCaptureUs));
+    mBase->setTimeLapseConfig(timePerFrameUs, timePerCaptureUs);
+    return Void();
 }
 
 Return<void> TWGraphicBufferSource::setStartTimeUs(int64_t startTimeUs) {
-    return toHardwareStatus(mBase->setStartTimeUs(startTimeUs));
+    mBase->setStartTimeUs(startTimeUs);
+    return Void();
 }
 
 Return<void> TWGraphicBufferSource::setColorAspects(
         const ColorAspects& aspects) {
-    return toHardwareStatus(mBase->setColorAspects(toCompactColorAspects(
-            aspects)));
+    mBase->setColorAspects(toCompactColorAspects(aspects));
+    return Void();
 }
 
 Return<void> TWGraphicBufferSource::setTimeOffsetUs(int64_t timeOffsetUs) {
-    return toHardwareStatus(mBase->setTimeOffsetUs(timeOffsetUs));
+    mBase->setTimeOffsetUs(timeOffsetUs);
+    return Void();
 }
 
 Return<void> TWGraphicBufferSource::signalEndOfInputStream() {
-    return toHardwareStatus(mBase->signalEndOfInputStream());
+    mBase->signalEndOfInputStream();
+    return Void();
 }
 
 }  // namespace implementation
diff --git a/media/libstagefright/omx/hal/1.0/impl/WGraphicBufferSource.h b/media/libstagefright/omx/hal/1.0/impl/WGraphicBufferSource.h
index 0b9f2ed..69efdde 100644
--- a/media/libstagefright/omx/hal/1.0/impl/WGraphicBufferSource.h
+++ b/media/libstagefright/omx/hal/1.0/impl/WGraphicBufferSource.h
@@ -23,7 +23,7 @@
 
 #include <frameworks/native/include/binder/Binder.h>
 #include <IOMX.h>
-#include <android/IGraphicBufferSource.h>
+#include <android/BnGraphicBufferSource.h>
 #include <android/hardware/media/omx/1.0/IOmxNode.h>
 
 #include <android/hardware/graphics/common/1.0/types.h>
@@ -60,10 +60,11 @@
  */
 
 typedef ::android::IGraphicBufferSource LGraphicBufferSource;
+typedef ::android::BnGraphicBufferSource BnGraphicBufferSource;
 typedef ::android::hardware::media::omx::V1_0::IGraphicBufferSource
         TGraphicBufferSource;
 
-struct LWGraphicBufferSource : public LGraphicBufferSource {
+struct LWGraphicBufferSource : public BnGraphicBufferSource {
     sp<TGraphicBufferSource> mBase;
     LWGraphicBufferSource(sp<TGraphicBufferSource> const& base);
     ::android::binder::Status configure(
@@ -78,8 +79,6 @@
     ::android::binder::Status setColorAspects(int32_t aspects) override;
     ::android::binder::Status setTimeOffsetUs(int64_t timeOffsetsUs) override;
     ::android::binder::Status signalEndOfInputStream() override;
-protected:
-    ::android::IBinder* onAsBinder() override;
 };
 
 struct TWGraphicBufferSource : public TGraphicBufferSource {
diff --git a/media/libstagefright/omx/hal/1.0/impl/WOmx.cpp b/media/libstagefright/omx/hal/1.0/impl/WOmx.cpp
index 0fa8c4c..da1c23d 100644
--- a/media/libstagefright/omx/hal/1.0/impl/WOmx.cpp
+++ b/media/libstagefright/omx/hal/1.0/impl/WOmx.cpp
@@ -79,10 +79,6 @@
     return transStatus == NO_ERROR ? fnStatus : transStatus;
 }
 
-::android::IBinder* LWOmx::onAsBinder() {
-    return nullptr;
-}
-
 // TWOmx
 TWOmx::TWOmx(sp<IOMX> const& base) : mBase(base) {
 }
diff --git a/media/libstagefright/omx/hal/1.0/impl/WOmx.h b/media/libstagefright/omx/hal/1.0/impl/WOmx.h
index 5618d27..ab11c6a 100644
--- a/media/libstagefright/omx/hal/1.0/impl/WOmx.h
+++ b/media/libstagefright/omx/hal/1.0/impl/WOmx.h
@@ -45,6 +45,7 @@
 
 using ::android::List;
 using ::android::IOMX;
+using ::android::BnOMX;
 
 /**
  * Wrapper classes for conversion
@@ -55,7 +56,7 @@
  * - TW = Treble Wrapper --- It wraps a legacy object inside a Treble object.
  */
 
-struct LWOmx : public IOMX {
+struct LWOmx : public BnOMX {
     sp<IOmx> mBase;
     LWOmx(sp<IOmx> const& base);
     status_t listNodes(List<IOMX::ComponentInfo>* list) override;
@@ -66,8 +67,6 @@
     status_t createInputSurface(
             sp<::android::IGraphicBufferProducer>* bufferProducer,
             sp<::android::IGraphicBufferSource>* bufferSource) override;
-protected:
-    ::android::IBinder* onAsBinder() override;
 };
 
 struct TWOmx : public IOmx {
diff --git a/media/libstagefright/omx/hal/1.0/impl/WOmxBufferProducer.cpp b/media/libstagefright/omx/hal/1.0/impl/WOmxBufferProducer.cpp
index a459c9f..3bd6c6e 100644
--- a/media/libstagefright/omx/hal/1.0/impl/WOmxBufferProducer.cpp
+++ b/media/libstagefright/omx/hal/1.0/impl/WOmxBufferProducer.cpp
@@ -203,7 +203,8 @@
 Return<void> TWOmxBufferProducer::connect(
         const sp<IOmxProducerListener>& listener,
         int32_t api, bool producerControlledByApp, connect_cb _hidl_cb) {
-    sp<IProducerListener> lListener = new LWOmxProducerListener(listener);
+    sp<IProducerListener> lListener = listener == nullptr ?
+            nullptr : new LWOmxProducerListener(listener);
     IGraphicBufferProducer::QueueBufferOutput lOutput;
     status_t status = mBase->connect(lListener,
             static_cast<int>(api),
@@ -479,7 +480,8 @@
 status_t LWOmxBufferProducer::connect(
         const sp<IProducerListener>& listener, int api,
         bool producerControlledByApp, QueueBufferOutput* output) {
-    sp<IOmxProducerListener> tListener = new TWOmxProducerListener(listener);
+    sp<IOmxProducerListener> tListener = listener == nullptr ?
+            nullptr : new TWOmxProducerListener(listener);
     status_t fnStatus;
     status_t transStatus = toStatusT(mBase->connect(
             tListener, static_cast<int32_t>(api), producerControlledByApp,
@@ -582,10 +584,6 @@
     return transStatus == NO_ERROR ? fnStatus : transStatus;
 }
 
-::android::IBinder* LWOmxBufferProducer::onAsBinder() {
-    return nullptr;
-}
-
 }  // namespace implementation
 }  // namespace V1_0
 }  // namespace omx
diff --git a/media/libstagefright/omx/hal/1.0/impl/WOmxBufferProducer.h b/media/libstagefright/omx/hal/1.0/impl/WOmxBufferProducer.h
index a991f49..65b093c 100644
--- a/media/libstagefright/omx/hal/1.0/impl/WOmxBufferProducer.h
+++ b/media/libstagefright/omx/hal/1.0/impl/WOmxBufferProducer.h
@@ -47,6 +47,7 @@
 using ::android::sp;
 
 using ::android::IGraphicBufferProducer;
+using ::android::BnGraphicBufferProducer;
 using ::android::IProducerListener;
 
 struct TWOmxBufferProducer : public IOmxBufferProducer {
@@ -91,7 +92,7 @@
     Return<void> getUniqueId(getUniqueId_cb _hidl_cb) override;
 };
 
-struct LWOmxBufferProducer : public IGraphicBufferProducer {
+struct LWOmxBufferProducer : public BnGraphicBufferProducer {
     sp<IOmxBufferProducer> mBase;
     LWOmxBufferProducer(sp<IOmxBufferProducer> const& base);
 
@@ -128,8 +129,6 @@
           sp<Fence>* outFence, float outTransformMatrix[16]) override;
     void getFrameTimestamps(FrameEventHistoryDelta* outDelta) override;
     status_t getUniqueId(uint64_t* outId) const override;
-protected:
-    ::android::IBinder* onAsBinder() override;
 };
 
 }  // namespace implementation
diff --git a/media/libstagefright/omx/hal/1.0/impl/WOmxBufferSource.cpp b/media/libstagefright/omx/hal/1.0/impl/WOmxBufferSource.cpp
index 2e00894..97bcee0 100644
--- a/media/libstagefright/omx/hal/1.0/impl/WOmxBufferSource.cpp
+++ b/media/libstagefright/omx/hal/1.0/impl/WOmxBufferSource.cpp
@@ -61,38 +61,34 @@
     ::android::binder::Status status = toBinderStatus(
             mBase->onInputBufferEmptied(
             static_cast<uint32_t>(bufferId), fence));
-    if (native_handle_delete(fenceNh) != 0) {
-        return ::android::binder::Status::fromExceptionCode(
-                ::android::binder::Status::EX_NULL_POINTER,
-                "Cannot delete native handle");
-    }
+    native_handle_close(fenceNh);
+    native_handle_delete(fenceNh);
     return status;
 }
 
-::android::IBinder* LWOmxBufferSource::onAsBinder() {
-    return nullptr;
-}
-
 // TWOmxBufferSource
 TWOmxBufferSource::TWOmxBufferSource(sp<IOMXBufferSource> const& base) :
     mBase(base) {
 }
 
 Return<void> TWOmxBufferSource::onOmxExecuting() {
-    return toHardwareStatus(mBase->onOmxExecuting());
+    mBase->onOmxExecuting();
+    return Void();
 }
 
 Return<void> TWOmxBufferSource::onOmxIdle() {
-    return toHardwareStatus(mBase->onOmxIdle());
+    mBase->onOmxIdle();
+    return Void();
 }
 
 Return<void> TWOmxBufferSource::onOmxLoaded() {
-    return toHardwareStatus(mBase->onOmxLoaded());
+    mBase->onOmxLoaded();
+    return Void();
 }
 
 Return<void> TWOmxBufferSource::onInputBufferAdded(uint32_t buffer) {
-    return toHardwareStatus(mBase->onInputBufferAdded(
-            static_cast<int32_t>(buffer)));
+    mBase->onInputBufferAdded(int32_t(buffer));
+    return Void();
 }
 
 Return<void> TWOmxBufferSource::onInputBufferEmptied(
@@ -102,8 +98,8 @@
       return ::android::hardware::Status::fromExceptionCode(
               ::android::hardware::Status::EX_BAD_PARCELABLE);
     }
-    return toHardwareStatus(mBase->onInputBufferEmptied(
-            static_cast<int32_t>(buffer), fenceParcelable));
+    mBase->onInputBufferEmptied(int32_t(buffer), fenceParcelable);
+    return Void();
 }
 
 }  // namespace implementation
diff --git a/media/libstagefright/omx/hal/1.0/impl/WOmxBufferSource.h b/media/libstagefright/omx/hal/1.0/impl/WOmxBufferSource.h
index a2e940f..83bf46f 100644
--- a/media/libstagefright/omx/hal/1.0/impl/WOmxBufferSource.h
+++ b/media/libstagefright/omx/hal/1.0/impl/WOmxBufferSource.h
@@ -22,7 +22,7 @@
 #include <hidl/Status.h>
 
 #include <frameworks/native/include/binder/Binder.h>
-#include <android/IOMXBufferSource.h>
+#include <android/BnOMXBufferSource.h>
 #include <OMXFenceParcelable.h>
 
 namespace android {
@@ -45,6 +45,7 @@
 
 using ::android::OMXFenceParcelable;
 using ::android::IOMXBufferSource;
+using ::android::BnOMXBufferSource;
 
 /**
  * Wrapper classes for conversion
@@ -55,7 +56,7 @@
  * - TW = Treble Wrapper --- It wraps a legacy object inside a Treble object.
  */
 
-struct LWOmxBufferSource : public IOMXBufferSource {
+struct LWOmxBufferSource : public BnOMXBufferSource {
     sp<IOmxBufferSource> mBase;
     LWOmxBufferSource(sp<IOmxBufferSource> const& base);
     ::android::binder::Status onOmxExecuting() override;
@@ -64,8 +65,6 @@
     ::android::binder::Status onInputBufferAdded(int32_t bufferID) override;
     ::android::binder::Status onInputBufferEmptied(
             int32_t bufferID, OMXFenceParcelable const& fenceParcel) override;
-protected:
-    ::android::IBinder* onAsBinder() override;
 };
 
 struct TWOmxBufferSource : public IOmxBufferSource {
diff --git a/media/libstagefright/omx/hal/1.0/impl/WOmxNode.cpp b/media/libstagefright/omx/hal/1.0/impl/WOmxNode.cpp
index 6b21138..26617aa 100644
--- a/media/libstagefright/omx/hal/1.0/impl/WOmxNode.cpp
+++ b/media/libstagefright/omx/hal/1.0/impl/WOmxNode.cpp
@@ -252,10 +252,6 @@
     return toStatusT(mBase->setQuirks(static_cast<uint32_t>(quirks)));;
 }
 
-::android::IBinder* LWOmxNode::onAsBinder() {
-    return nullptr;
-}
-
 // TWOmxNode
 TWOmxNode::TWOmxNode(sp<IOMXNode> const& base) : mBase(base) {
 }
@@ -281,7 +277,8 @@
 }
 
 Return<Status> TWOmxNode::setParameter(
-        uint32_t index, hidl_vec<uint8_t> const& params) {
+        uint32_t index, hidl_vec<uint8_t> const& inParams) {
+    hidl_vec<uint8_t> params(inParams);
     return toStatus(mBase->setParameter(
             toEnumIndexType(index),
             static_cast<void const*>(params.data()),
@@ -301,7 +298,8 @@
 }
 
 Return<Status> TWOmxNode::setConfig(
-        uint32_t index, const hidl_vec<uint8_t>& config) {
+        uint32_t index, const hidl_vec<uint8_t>& inConfig) {
+    hidl_vec<uint8_t> config(inConfig);
     return toStatus(mBase->setConfig(
             toEnumIndexType(index),
             static_cast<void const*>(config.data()),
diff --git a/media/libstagefright/omx/hal/1.0/impl/WOmxNode.h b/media/libstagefright/omx/hal/1.0/impl/WOmxNode.h
index d606f3a..12c2f04 100644
--- a/media/libstagefright/omx/hal/1.0/impl/WOmxNode.h
+++ b/media/libstagefright/omx/hal/1.0/impl/WOmxNode.h
@@ -56,7 +56,7 @@
  * - TW = Treble Wrapper --- It wraps a legacy object inside a Treble object.
  */
 
-struct LWOmxNode : public IOMXNode {
+struct LWOmxNode : public BnOMXNode {
     sp<IOmxNode> mBase;
     LWOmxNode(sp<IOmxNode> const& base);
     status_t freeNode() override;
@@ -103,8 +103,6 @@
 
     // TODO: this is temporary, will be removed when quirks move to OMX side.
     status_t setQuirks(OMX_U32 quirks) override;
-protected:
-    ::android::IBinder* onAsBinder() override;
 };
 
 struct TWOmxNode : public IOmxNode {
diff --git a/media/libstagefright/omx/hal/1.0/impl/WOmxObserver.cpp b/media/libstagefright/omx/hal/1.0/impl/WOmxObserver.cpp
index d5549fb..ecd1db5 100644
--- a/media/libstagefright/omx/hal/1.0/impl/WOmxObserver.cpp
+++ b/media/libstagefright/omx/hal/1.0/impl/WOmxObserver.cpp
@@ -50,10 +50,6 @@
     }
 }
 
-::android::IBinder* LWOmxObserver::onAsBinder() {
-    return nullptr;
-}
-
 // TWOmxObserver
 TWOmxObserver::TWOmxObserver(sp<IOMXObserver> const& base) : mBase(base) {
 }
diff --git a/media/libstagefright/omx/hal/1.0/impl/WOmxObserver.h b/media/libstagefright/omx/hal/1.0/impl/WOmxObserver.h
index 85593c3..cfe4281 100644
--- a/media/libstagefright/omx/hal/1.0/impl/WOmxObserver.h
+++ b/media/libstagefright/omx/hal/1.0/impl/WOmxObserver.h
@@ -43,6 +43,7 @@
 using ::android::sp;
 
 using ::android::IOMXObserver;
+using ::android::BnOMXObserver;
 using ::android::omx_message;
 
 /**
@@ -54,12 +55,10 @@
  * - TW = Treble Wrapper --- It wraps a legacy object inside a Treble object.
  */
 
-struct LWOmxObserver : public IOMXObserver {
+struct LWOmxObserver : public BnOMXObserver {
     sp<IOmxObserver> mBase;
     LWOmxObserver(sp<IOmxObserver> const& base);
     void onMessages(std::list<omx_message> const& lMessages) override;
-protected:
-    ::android::IBinder* onAsBinder() override;
 };
 
 struct TWOmxObserver : public IOmxObserver {
diff --git a/media/libstagefright/omx/hal/1.0/impl/WOmxProducerListener.cpp b/media/libstagefright/omx/hal/1.0/impl/WOmxProducerListener.cpp
index fa6e9aa..a5eed35 100644
--- a/media/libstagefright/omx/hal/1.0/impl/WOmxProducerListener.cpp
+++ b/media/libstagefright/omx/hal/1.0/impl/WOmxProducerListener.cpp
@@ -52,11 +52,6 @@
     return static_cast<bool>(mBase->needsReleaseNotify());
 }
 
-::android::IBinder* LWOmxProducerListener::onAsBinder() {
-    return nullptr;
-}
-
-
 }  // namespace implementation
 }  // namespace V1_0
 }  // namespace omx
diff --git a/media/libstagefright/omx/hal/1.0/impl/WOmxProducerListener.h b/media/libstagefright/omx/hal/1.0/impl/WOmxProducerListener.h
index b93a555..86656ca 100644
--- a/media/libstagefright/omx/hal/1.0/impl/WOmxProducerListener.h
+++ b/media/libstagefright/omx/hal/1.0/impl/WOmxProducerListener.h
@@ -42,6 +42,7 @@
 using ::android::sp;
 
 using ::android::IProducerListener;
+using ::android::BnProducerListener;
 
 struct TWOmxProducerListener : public IOmxProducerListener {
     sp<IProducerListener> mBase;
@@ -50,14 +51,12 @@
     Return<bool> needsReleaseNotify() override;
 };
 
-class LWOmxProducerListener : public IProducerListener {
+class LWOmxProducerListener : public BnProducerListener {
 public:
     sp<IOmxProducerListener> mBase;
     LWOmxProducerListener(sp<IOmxProducerListener> const& base);
     void onBufferReleased() override;
     bool needsReleaseNotify() override;
-protected:
-    ::android::IBinder* onAsBinder() override;
 };
 
 }  // namespace implementation
diff --git a/media/libstagefright/omx/hal/1.0/utils/Conversion.h b/media/libstagefright/omx/hal/1.0/utils/Conversion.h
index 6f4d864..05f0c78 100644
--- a/media/libstagefright/omx/hal/1.0/utils/Conversion.h
+++ b/media/libstagefright/omx/hal/1.0/utils/Conversion.h
@@ -294,7 +294,7 @@
     if (!*nh) {
         return false;
     }
-    t->fence = inHidlHandle(*nh);
+    t->fence = *nh;
     switch (l.type) {
         case omx_message::EVENT:
             t->type = Message::Type::EVENT;
@@ -592,6 +592,16 @@
         }
         case OMXBuffer::kBufferTypeANWBuffer: {
             t->type = CodecBuffer::Type::ANW_BUFFER;
+            if (l.mGraphicBuffer == nullptr) {
+                t->attr.anwBuffer.width = 0;
+                t->attr.anwBuffer.height = 0;
+                t->attr.anwBuffer.stride = 0;
+                t->attr.anwBuffer.format = static_cast<PixelFormat>(1);
+                t->attr.anwBuffer.layerCount = 0;
+                t->attr.anwBuffer.usage = 0;
+                t->nativeHandle = hidl_handle();
+                return true;
+            }
             t->attr.anwBuffer.width = l.mGraphicBuffer->getWidth();
             t->attr.anwBuffer.height = l.mGraphicBuffer->getHeight();
             t->attr.anwBuffer.stride = l.mGraphicBuffer->getStride();
@@ -636,6 +646,10 @@
             return true;
         }
         case CodecBuffer::Type::ANW_BUFFER: {
+            if (t.nativeHandle.getNativeHandle() == nullptr) {
+                *l = OMXBuffer(sp<GraphicBuffer>(nullptr));
+                return true;
+            }
             *l = OMXBuffer(sp<GraphicBuffer>(new GraphicBuffer(
                     t.attr.anwBuffer.width,
                     t.attr.anwBuffer.height,
@@ -2082,6 +2096,7 @@
     t->transformHint = l.transformHint;
     t->numPendingBuffers = l.numPendingBuffers;
     t->nextFrameNumber = l.nextFrameNumber;
+    t->bufferReplaced = l.bufferReplaced;
     return true;
 }
 
@@ -2107,6 +2122,7 @@
     l->transformHint = t.transformHint;
     l->numPendingBuffers = t.numPendingBuffers;
     l->nextFrameNumber = t.nextFrameNumber;
+    l->bufferReplaced = t.bufferReplaced;
     return true;
 }
 
diff --git a/media/libstagefright/omx/hal/1.0/utils/WGraphicBufferSource.cpp b/media/libstagefright/omx/hal/1.0/utils/WGraphicBufferSource.cpp
index 037e9b2..a23b48a 100644
--- a/media/libstagefright/omx/hal/1.0/utils/WGraphicBufferSource.cpp
+++ b/media/libstagefright/omx/hal/1.0/utils/WGraphicBufferSource.cpp
@@ -78,10 +78,6 @@
     return toBinderStatus(mBase->signalEndOfInputStream());
 }
 
-::android::IBinder* LWGraphicBufferSource::onAsBinder() {
-    return nullptr;
-}
-
 // TWGraphicBufferSource
 TWGraphicBufferSource::TWGraphicBufferSource(
         sp<LGraphicBufferSource> const& base) : mBase(base) {
@@ -89,47 +85,51 @@
 
 Return<void> TWGraphicBufferSource::configure(
         const sp<IOmxNode>& omxNode, Dataspace dataspace) {
-    return toHardwareStatus(mBase->configure(
-            new LWOmxNode(omxNode),
-            toRawDataspace(dataspace)));
+    mBase->configure(new LWOmxNode(omxNode), toRawDataspace(dataspace));
+    return Void();
 }
 
 Return<void> TWGraphicBufferSource::setSuspend(bool suspend) {
-    return toHardwareStatus(mBase->setSuspend(suspend));
+    mBase->setSuspend(suspend);
+    return Void();
 }
 
 Return<void> TWGraphicBufferSource::setRepeatPreviousFrameDelayUs(
         int64_t repeatAfterUs) {
-    return toHardwareStatus(mBase->setRepeatPreviousFrameDelayUs(
-            repeatAfterUs));
+    mBase->setRepeatPreviousFrameDelayUs(repeatAfterUs);
+    return Void();
 }
 
 Return<void> TWGraphicBufferSource::setMaxFps(float maxFps) {
-    return toHardwareStatus(mBase->setMaxFps(maxFps));
+    mBase->setMaxFps(maxFps);
+    return Void();
 }
 
 Return<void> TWGraphicBufferSource::setTimeLapseConfig(
         int64_t timePerFrameUs, int64_t timePerCaptureUs) {
-    return toHardwareStatus(mBase->setTimeLapseConfig(
-            timePerFrameUs, timePerCaptureUs));
+    mBase->setTimeLapseConfig(timePerFrameUs, timePerCaptureUs);
+    return Void();
 }
 
 Return<void> TWGraphicBufferSource::setStartTimeUs(int64_t startTimeUs) {
-    return toHardwareStatus(mBase->setStartTimeUs(startTimeUs));
+    mBase->setStartTimeUs(startTimeUs);
+    return Void();
 }
 
 Return<void> TWGraphicBufferSource::setColorAspects(
         const ColorAspects& aspects) {
-    return toHardwareStatus(mBase->setColorAspects(toCompactColorAspects(
-            aspects)));
+    mBase->setColorAspects(toCompactColorAspects(aspects));
+    return Void();
 }
 
 Return<void> TWGraphicBufferSource::setTimeOffsetUs(int64_t timeOffsetUs) {
-    return toHardwareStatus(mBase->setTimeOffsetUs(timeOffsetUs));
+    mBase->setTimeOffsetUs(timeOffsetUs);
+    return Void();
 }
 
 Return<void> TWGraphicBufferSource::signalEndOfInputStream() {
-    return toHardwareStatus(mBase->signalEndOfInputStream());
+    mBase->signalEndOfInputStream();
+    return Void();
 }
 
 }  // namespace utils
diff --git a/media/libstagefright/omx/hal/1.0/utils/WGraphicBufferSource.h b/media/libstagefright/omx/hal/1.0/utils/WGraphicBufferSource.h
index 17a4486..d21de42 100644
--- a/media/libstagefright/omx/hal/1.0/utils/WGraphicBufferSource.h
+++ b/media/libstagefright/omx/hal/1.0/utils/WGraphicBufferSource.h
@@ -23,7 +23,7 @@
 
 #include <frameworks/native/include/binder/Binder.h>
 #include <IOMX.h>
-#include <android/IGraphicBufferSource.h>
+#include <android/BnGraphicBufferSource.h>
 #include <android/hardware/media/omx/1.0/IOmxNode.h>
 
 #include <android/hardware/graphics/common/1.0/types.h>
@@ -60,10 +60,11 @@
  */
 
 typedef ::android::IGraphicBufferSource LGraphicBufferSource;
+typedef ::android::BnGraphicBufferSource BnGraphicBufferSource;
 typedef ::android::hardware::media::omx::V1_0::IGraphicBufferSource
         TGraphicBufferSource;
 
-struct LWGraphicBufferSource : public LGraphicBufferSource {
+struct LWGraphicBufferSource : public BnGraphicBufferSource {
     sp<TGraphicBufferSource> mBase;
     LWGraphicBufferSource(sp<TGraphicBufferSource> const& base);
     ::android::binder::Status configure(
@@ -78,8 +79,6 @@
     ::android::binder::Status setColorAspects(int32_t aspects) override;
     ::android::binder::Status setTimeOffsetUs(int64_t timeOffsetsUs) override;
     ::android::binder::Status signalEndOfInputStream() override;
-protected:
-    ::android::IBinder* onAsBinder() override;
 };
 
 struct TWGraphicBufferSource : public TGraphicBufferSource {
diff --git a/media/libstagefright/omx/hal/1.0/utils/WOmx.cpp b/media/libstagefright/omx/hal/1.0/utils/WOmx.cpp
index 07c9255..00f40cd 100644
--- a/media/libstagefright/omx/hal/1.0/utils/WOmx.cpp
+++ b/media/libstagefright/omx/hal/1.0/utils/WOmx.cpp
@@ -79,10 +79,6 @@
     return transStatus == NO_ERROR ? fnStatus : transStatus;
 }
 
-::android::IBinder* LWOmx::onAsBinder() {
-    return nullptr;
-}
-
 // TWOmx
 TWOmx::TWOmx(sp<IOMX> const& base) : mBase(base) {
 }
diff --git a/media/libstagefright/omx/hal/1.0/utils/WOmx.h b/media/libstagefright/omx/hal/1.0/utils/WOmx.h
index 26affad..73adc55 100644
--- a/media/libstagefright/omx/hal/1.0/utils/WOmx.h
+++ b/media/libstagefright/omx/hal/1.0/utils/WOmx.h
@@ -45,6 +45,7 @@
 
 using ::android::List;
 using ::android::IOMX;
+using ::android::BnOMX;
 
 /**
  * Wrapper classes for conversion
@@ -55,7 +56,7 @@
  * - TW = Treble Wrapper --- It wraps a legacy object inside a Treble object.
  */
 
-struct LWOmx : public IOMX {
+struct LWOmx : public BnOMX {
     sp<IOmx> mBase;
     LWOmx(sp<IOmx> const& base);
     status_t listNodes(List<IOMX::ComponentInfo>* list) override;
@@ -66,8 +67,6 @@
     status_t createInputSurface(
             sp<::android::IGraphicBufferProducer>* bufferProducer,
             sp<::android::IGraphicBufferSource>* bufferSource) override;
-protected:
-    ::android::IBinder* onAsBinder() override;
 };
 
 struct TWOmx : public IOmx {
diff --git a/media/libstagefright/omx/hal/1.0/utils/WOmxBufferProducer.cpp b/media/libstagefright/omx/hal/1.0/utils/WOmxBufferProducer.cpp
index 49f2706..cfb0cce 100644
--- a/media/libstagefright/omx/hal/1.0/utils/WOmxBufferProducer.cpp
+++ b/media/libstagefright/omx/hal/1.0/utils/WOmxBufferProducer.cpp
@@ -203,7 +203,8 @@
 Return<void> TWOmxBufferProducer::connect(
         const sp<IOmxProducerListener>& listener,
         int32_t api, bool producerControlledByApp, connect_cb _hidl_cb) {
-    sp<IProducerListener> lListener = new LWOmxProducerListener(listener);
+    sp<IProducerListener> lListener = listener == nullptr ?
+            nullptr : new LWOmxProducerListener(listener);
     IGraphicBufferProducer::QueueBufferOutput lOutput;
     status_t status = mBase->connect(lListener,
             static_cast<int>(api),
@@ -479,7 +480,8 @@
 status_t LWOmxBufferProducer::connect(
         const sp<IProducerListener>& listener, int api,
         bool producerControlledByApp, QueueBufferOutput* output) {
-    sp<IOmxProducerListener> tListener = new TWOmxProducerListener(listener);
+    sp<IOmxProducerListener> tListener = listener == nullptr ?
+            nullptr : new TWOmxProducerListener(listener);
     status_t fnStatus;
     status_t transStatus = toStatusT(mBase->connect(
             tListener, static_cast<int32_t>(api), producerControlledByApp,
@@ -582,10 +584,6 @@
     return transStatus == NO_ERROR ? fnStatus : transStatus;
 }
 
-::android::IBinder* LWOmxBufferProducer::onAsBinder() {
-    return nullptr;
-}
-
 }  // namespace utils
 }  // namespace V1_0
 }  // namespace omx
diff --git a/media/libstagefright/omx/hal/1.0/utils/WOmxBufferProducer.h b/media/libstagefright/omx/hal/1.0/utils/WOmxBufferProducer.h
index 46abd27..a5d2961 100644
--- a/media/libstagefright/omx/hal/1.0/utils/WOmxBufferProducer.h
+++ b/media/libstagefright/omx/hal/1.0/utils/WOmxBufferProducer.h
@@ -47,6 +47,7 @@
 using ::android::sp;
 
 using ::android::IGraphicBufferProducer;
+using ::android::BnGraphicBufferProducer;
 using ::android::IProducerListener;
 
 struct TWOmxBufferProducer : public IOmxBufferProducer {
@@ -91,7 +92,7 @@
     Return<void> getUniqueId(getUniqueId_cb _hidl_cb) override;
 };
 
-struct LWOmxBufferProducer : public IGraphicBufferProducer {
+struct LWOmxBufferProducer : public BnGraphicBufferProducer {
     sp<IOmxBufferProducer> mBase;
     LWOmxBufferProducer(sp<IOmxBufferProducer> const& base);
 
@@ -128,8 +129,6 @@
           sp<Fence>* outFence, float outTransformMatrix[16]) override;
     void getFrameTimestamps(FrameEventHistoryDelta* outDelta) override;
     status_t getUniqueId(uint64_t* outId) const override;
-protected:
-    ::android::IBinder* onAsBinder() override;
 };
 
 }  // namespace utils
diff --git a/media/libstagefright/omx/hal/1.0/utils/WOmxBufferSource.cpp b/media/libstagefright/omx/hal/1.0/utils/WOmxBufferSource.cpp
index 1ebd9a7..f3f5b9d 100644
--- a/media/libstagefright/omx/hal/1.0/utils/WOmxBufferSource.cpp
+++ b/media/libstagefright/omx/hal/1.0/utils/WOmxBufferSource.cpp
@@ -61,38 +61,34 @@
     ::android::binder::Status status = toBinderStatus(
             mBase->onInputBufferEmptied(
             static_cast<uint32_t>(bufferId), fence));
-    if (native_handle_delete(fenceNh) != 0) {
-        return ::android::binder::Status::fromExceptionCode(
-                ::android::binder::Status::EX_NULL_POINTER,
-                "Cannot delete native handle");
-    }
+    native_handle_close(fenceNh);
+    native_handle_delete(fenceNh);
     return status;
 }
 
-::android::IBinder* LWOmxBufferSource::onAsBinder() {
-    return nullptr;
-}
-
 // TWOmxBufferSource
 TWOmxBufferSource::TWOmxBufferSource(sp<IOMXBufferSource> const& base) :
     mBase(base) {
 }
 
 Return<void> TWOmxBufferSource::onOmxExecuting() {
-    return toHardwareStatus(mBase->onOmxExecuting());
+    mBase->onOmxExecuting();
+    return Void();
 }
 
 Return<void> TWOmxBufferSource::onOmxIdle() {
-    return toHardwareStatus(mBase->onOmxIdle());
+    mBase->onOmxIdle();
+    return Void();
 }
 
 Return<void> TWOmxBufferSource::onOmxLoaded() {
-    return toHardwareStatus(mBase->onOmxLoaded());
+    mBase->onOmxLoaded();
+    return Void();
 }
 
 Return<void> TWOmxBufferSource::onInputBufferAdded(uint32_t buffer) {
-    return toHardwareStatus(mBase->onInputBufferAdded(
-            static_cast<int32_t>(buffer)));
+    mBase->onInputBufferAdded(int32_t(buffer));
+    return Void();
 }
 
 Return<void> TWOmxBufferSource::onInputBufferEmptied(
@@ -102,8 +98,8 @@
       return ::android::hardware::Status::fromExceptionCode(
               ::android::hardware::Status::EX_BAD_PARCELABLE);
     }
-    return toHardwareStatus(mBase->onInputBufferEmptied(
-            static_cast<int32_t>(buffer), fenceParcelable));
+    mBase->onInputBufferEmptied(int32_t(buffer), fenceParcelable);
+    return Void();
 }
 
 }  // namespace utils
diff --git a/media/libstagefright/omx/hal/1.0/utils/WOmxBufferSource.h b/media/libstagefright/omx/hal/1.0/utils/WOmxBufferSource.h
index 3bf35c5..1214300 100644
--- a/media/libstagefright/omx/hal/1.0/utils/WOmxBufferSource.h
+++ b/media/libstagefright/omx/hal/1.0/utils/WOmxBufferSource.h
@@ -22,7 +22,7 @@
 #include <hidl/Status.h>
 
 #include <frameworks/native/include/binder/Binder.h>
-#include <android/IOMXBufferSource.h>
+#include <android/BnOMXBufferSource.h>
 #include <OMXFenceParcelable.h>
 
 namespace android {
@@ -45,6 +45,7 @@
 
 using ::android::OMXFenceParcelable;
 using ::android::IOMXBufferSource;
+using ::android::BnOMXBufferSource;
 
 /**
  * Wrapper classes for conversion
@@ -55,7 +56,7 @@
  * - TW = Treble Wrapper --- It wraps a legacy object inside a Treble object.
  */
 
-struct LWOmxBufferSource : public IOMXBufferSource {
+struct LWOmxBufferSource : public BnOMXBufferSource {
     sp<IOmxBufferSource> mBase;
     LWOmxBufferSource(sp<IOmxBufferSource> const& base);
     ::android::binder::Status onOmxExecuting() override;
@@ -64,8 +65,6 @@
     ::android::binder::Status onInputBufferAdded(int32_t bufferID) override;
     ::android::binder::Status onInputBufferEmptied(
             int32_t bufferID, OMXFenceParcelable const& fenceParcel) override;
-protected:
-    ::android::IBinder* onAsBinder() override;
 };
 
 struct TWOmxBufferSource : public IOmxBufferSource {
diff --git a/media/libstagefright/omx/hal/1.0/utils/WOmxNode.cpp b/media/libstagefright/omx/hal/1.0/utils/WOmxNode.cpp
index 6764ba8..3bb7a99 100644
--- a/media/libstagefright/omx/hal/1.0/utils/WOmxNode.cpp
+++ b/media/libstagefright/omx/hal/1.0/utils/WOmxNode.cpp
@@ -252,10 +252,6 @@
     return toStatusT(mBase->setQuirks(static_cast<uint32_t>(quirks)));;
 }
 
-::android::IBinder* LWOmxNode::onAsBinder() {
-    return nullptr;
-}
-
 // TWOmxNode
 TWOmxNode::TWOmxNode(sp<IOMXNode> const& base) : mBase(base) {
 }
@@ -281,7 +277,8 @@
 }
 
 Return<Status> TWOmxNode::setParameter(
-        uint32_t index, hidl_vec<uint8_t> const& params) {
+        uint32_t index, hidl_vec<uint8_t> const& inParams) {
+    hidl_vec<uint8_t> params(inParams);
     return toStatus(mBase->setParameter(
             toEnumIndexType(index),
             static_cast<void const*>(params.data()),
@@ -301,7 +298,8 @@
 }
 
 Return<Status> TWOmxNode::setConfig(
-        uint32_t index, const hidl_vec<uint8_t>& config) {
+        uint32_t index, const hidl_vec<uint8_t>& inConfig) {
+    hidl_vec<uint8_t> config(inConfig);
     return toStatus(mBase->setConfig(
             toEnumIndexType(index),
             static_cast<void const*>(config.data()),
diff --git a/media/libstagefright/omx/hal/1.0/utils/WOmxNode.h b/media/libstagefright/omx/hal/1.0/utils/WOmxNode.h
index cb0b1a7..9c4bb4a 100644
--- a/media/libstagefright/omx/hal/1.0/utils/WOmxNode.h
+++ b/media/libstagefright/omx/hal/1.0/utils/WOmxNode.h
@@ -56,7 +56,7 @@
  * - TW = Treble Wrapper --- It wraps a legacy object inside a Treble object.
  */
 
-struct LWOmxNode : public IOMXNode {
+struct LWOmxNode : public BnOMXNode {
     sp<IOmxNode> mBase;
     LWOmxNode(sp<IOmxNode> const& base);
     status_t freeNode() override;
@@ -103,8 +103,6 @@
 
     // TODO: this is temporary, will be removed when quirks move to OMX side.
     status_t setQuirks(OMX_U32 quirks) override;
-protected:
-    ::android::IBinder* onAsBinder() override;
 };
 
 struct TWOmxNode : public IOmxNode {
diff --git a/media/libstagefright/omx/hal/1.0/utils/WOmxObserver.cpp b/media/libstagefright/omx/hal/1.0/utils/WOmxObserver.cpp
index fea5a9a..db971f8 100644
--- a/media/libstagefright/omx/hal/1.0/utils/WOmxObserver.cpp
+++ b/media/libstagefright/omx/hal/1.0/utils/WOmxObserver.cpp
@@ -50,10 +50,6 @@
     }
 }
 
-::android::IBinder* LWOmxObserver::onAsBinder() {
-    return nullptr;
-}
-
 // TWOmxObserver
 TWOmxObserver::TWOmxObserver(sp<IOMXObserver> const& base) : mBase(base) {
 }
diff --git a/media/libstagefright/omx/hal/1.0/utils/WOmxObserver.h b/media/libstagefright/omx/hal/1.0/utils/WOmxObserver.h
index b1e2eb1..b9eb412 100644
--- a/media/libstagefright/omx/hal/1.0/utils/WOmxObserver.h
+++ b/media/libstagefright/omx/hal/1.0/utils/WOmxObserver.h
@@ -43,6 +43,7 @@
 using ::android::sp;
 
 using ::android::IOMXObserver;
+using ::android::BnOMXObserver;
 using ::android::omx_message;
 
 /**
@@ -54,12 +55,10 @@
  * - TW = Treble Wrapper --- It wraps a legacy object inside a Treble object.
  */
 
-struct LWOmxObserver : public IOMXObserver {
+struct LWOmxObserver : public BnOMXObserver {
     sp<IOmxObserver> mBase;
     LWOmxObserver(sp<IOmxObserver> const& base);
     void onMessages(std::list<omx_message> const& lMessages) override;
-protected:
-    ::android::IBinder* onAsBinder() override;
 };
 
 struct TWOmxObserver : public IOmxObserver {
diff --git a/media/libstagefright/omx/hal/1.0/utils/WOmxProducerListener.cpp b/media/libstagefright/omx/hal/1.0/utils/WOmxProducerListener.cpp
index d43215d..80b0f71 100644
--- a/media/libstagefright/omx/hal/1.0/utils/WOmxProducerListener.cpp
+++ b/media/libstagefright/omx/hal/1.0/utils/WOmxProducerListener.cpp
@@ -52,11 +52,6 @@
     return static_cast<bool>(mBase->needsReleaseNotify());
 }
 
-::android::IBinder* LWOmxProducerListener::onAsBinder() {
-    return nullptr;
-}
-
-
 }  // namespace utils
 }  // namespace V1_0
 }  // namespace omx
diff --git a/media/libstagefright/omx/hal/1.0/utils/WOmxProducerListener.h b/media/libstagefright/omx/hal/1.0/utils/WOmxProducerListener.h
index 5b5e830..2be077b 100644
--- a/media/libstagefright/omx/hal/1.0/utils/WOmxProducerListener.h
+++ b/media/libstagefright/omx/hal/1.0/utils/WOmxProducerListener.h
@@ -42,6 +42,7 @@
 using ::android::sp;
 
 using ::android::IProducerListener;
+using ::android::BnProducerListener;
 
 struct TWOmxProducerListener : public IOmxProducerListener {
     sp<IProducerListener> mBase;
@@ -50,14 +51,12 @@
     Return<bool> needsReleaseNotify() override;
 };
 
-class LWOmxProducerListener : public IProducerListener {
+class LWOmxProducerListener : public BnProducerListener {
 public:
     sp<IOmxProducerListener> mBase;
     LWOmxProducerListener(sp<IOmxProducerListener> const& base);
     void onBufferReleased() override;
     bool needsReleaseNotify() override;
-protected:
-    ::android::IBinder* onAsBinder() override;
 };
 
 }  // namespace utils
diff --git a/media/mtp/MtpFfsHandle.cpp b/media/mtp/MtpFfsHandle.cpp
index 6df2065..6c7ffcb 100644
--- a/media/mtp/MtpFfsHandle.cpp
+++ b/media/mtp/MtpFfsHandle.cpp
@@ -40,7 +40,7 @@
 #define cpu_to_le16(x)  htole16(x)
 #define cpu_to_le32(x)  htole32(x)
 
-#define FUNCTIONFS_ENDPOINT_ALLOC       _IOR('g', 131, __u32)
+#define FUNCTIONFS_ENDPOINT_ALLOC       _IOR('g', 231, __u32)
 
 namespace {
 
@@ -62,8 +62,13 @@
 constexpr int USB_FFS_MAX_WRITE = MTP_BUFFER_SIZE;
 constexpr int USB_FFS_MAX_READ = MTP_BUFFER_SIZE;
 
+static_assert(USB_FFS_MAX_WRITE > 0, "Max r/w values must be > 0!");
+static_assert(USB_FFS_MAX_READ > 0, "Max r/w values must be > 0!");
+
 constexpr unsigned int MAX_MTP_FILE_SIZE = 0xFFFFFFFF;
 
+constexpr size_t ENDPOINT_ALLOC_RETRIES = 10;
+
 struct func_desc {
     struct usb_interface_descriptor intf;
     struct usb_endpoint_descriptor_no_audio sink;
@@ -459,19 +464,28 @@
     mMaxWrite = android::base::GetIntProperty("sys.usb.ffs.max_write", USB_FFS_MAX_WRITE);
     mMaxRead = android::base::GetIntProperty("sys.usb.ffs.max_read", USB_FFS_MAX_READ);
 
-    while (mMaxWrite > USB_FFS_MAX_WRITE && mMaxRead > USB_FFS_MAX_READ) {
+    size_t attempts = 0;
+    while (mMaxWrite >= USB_FFS_MAX_WRITE && mMaxRead >= USB_FFS_MAX_READ &&
+            attempts < ENDPOINT_ALLOC_RETRIES) {
         // If larger contiguous chunks of memory aren't available, attempt to try
         // smaller allocations.
         if (ioctl(mBulkIn, FUNCTIONFS_ENDPOINT_ALLOC, static_cast<__u32>(mMaxWrite)) ||
             ioctl(mBulkOut, FUNCTIONFS_ENDPOINT_ALLOC, static_cast<__u32>(mMaxRead))) {
+            if (errno == ENODEV) {
+                // Driver hasn't enabled endpoints yet.
+                std::this_thread::sleep_for(std::chrono::milliseconds(100));
+                attempts += 1;
+                continue;
+            }
             mMaxWrite /= 2;
             mMaxRead /=2;
         } else {
             return 0;
         }
     }
+    // Try to start MtpServer anyway, with the smallest max r/w values
     PLOG(ERROR) << "Functionfs could not allocate any memory!";
-    return -1;
+    return 0;
 }
 
 int MtpFfsHandle::configure(bool usePtp) {
@@ -583,7 +597,7 @@
     uint64_t file_length = mfr.length;
     uint32_t given_length = std::min(static_cast<uint64_t>(MAX_MTP_FILE_SIZE),
             file_length + sizeof(mtp_data_header));
-    uint64_t offset = 0;
+    uint64_t offset = mfr.offset;
     struct usb_endpoint_descriptor mBulkIn_desc;
     int packet_size;
 
@@ -594,7 +608,10 @@
         packet_size = mBulkIn_desc.wMaxPacketSize;
     }
 
-    int init_read_len = packet_size - sizeof(mtp_data_header);
+    // If file_length is larger than a size_t, truncating would produce the wrong comparison.
+    // Instead, promote the left side to 64 bits, then truncate the small result.
+    int init_read_len = std::min(
+            static_cast<uint64_t>(packet_size - sizeof(mtp_data_header)), file_length);
 
     char *data = mBuffer1.data();
     char *data2 = mBuffer2.data();
@@ -620,10 +637,10 @@
     if (TEMP_FAILURE_RETRY(pread(mfr.fd, reinterpret_cast<char*>(data) +
                     sizeof(mtp_data_header), init_read_len, offset))
             != init_read_len) return -1;
+    if (writeHandle(mBulkIn, data, sizeof(mtp_data_header) + init_read_len) == -1) return -1;
+    if (file_length == static_cast<unsigned>(init_read_len)) return 0;
     file_length -= init_read_len;
     offset += init_read_len;
-    if (writeHandle(mBulkIn, data, packet_size) == -1) return -1;
-    if (file_length == 0) return 0;
 
     // Break down the file into pieces that fit in buffers
     while(file_length > 0) {
diff --git a/media/mtp/MtpFfsHandle.h b/media/mtp/MtpFfsHandle.h
index 44ff0f3..b4d5a97 100644
--- a/media/mtp/MtpFfsHandle.h
+++ b/media/mtp/MtpFfsHandle.h
@@ -59,6 +59,10 @@
     int sendFile(mtp_file_range mfr);
     int sendEvent(mtp_event me);
 
+    /**
+     * Open ffs endpoints and allocate necessary kernel and user memory.
+     * Will sleep until endpoints are enabled, for up to 1 second.
+     */
     int start();
     void close();
 
diff --git a/media/mtp/tests/MtpFfsHandle_test.cpp b/media/mtp/tests/MtpFfsHandle_test.cpp
index b511041..e575148 100644
--- a/media/mtp/tests/MtpFfsHandle_test.cpp
+++ b/media/mtp/tests/MtpFfsHandle_test.cpp
@@ -20,6 +20,7 @@
 #include <fcntl.h>
 #include <gtest/gtest.h>
 #include <memory>
+#include <random>
 #include <string>
 #include <unistd.h>
 #include <utils/Log.h>
@@ -28,6 +29,8 @@
 
 namespace android {
 
+constexpr int MAX_FILE_CHUNK_SIZE = 3 * 1024 * 1024;
+
 constexpr int TEST_PACKET_SIZE = 512;
 constexpr int SMALL_MULT = 30;
 constexpr int MED_MULT = 510;
@@ -42,6 +45,10 @@
     "BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express o"
     "r implied.\n * Se";
 
+/**
+ * Functional tests for the MtpFfsHandle class. Ensures header and data integrity
+ * by mocking ffs endpoints as pipes to capture input / output.
+ */
 class MtpFfsHandleTest : public ::testing::Test {
 protected:
     std::unique_ptr<IMtpHandle> handle;
@@ -72,6 +79,9 @@
         EXPECT_EQ(pipe(fd), 0);
         intr.reset(fd[0]);
         ffs_handle->mIntr.reset(fd[1]);
+
+        ffs_handle->mBuffer1.resize(MAX_FILE_CHUNK_SIZE);
+        ffs_handle->mBuffer2.resize(MAX_FILE_CHUNK_SIZE);
     }
 
     ~MtpFfsHandleTest() {}
@@ -138,6 +148,7 @@
     mtp_file_range mfr;
     mfr.command = 42;
     mfr.transaction_id = 1337;
+    mfr.offset = 0;
     int size = TEST_PACKET_SIZE * SMALL_MULT;
     char buf[size + sizeof(mtp_data_header) + 1];
     buf[size + sizeof(mtp_data_header)] = '\0';
@@ -166,6 +177,7 @@
     mtp_file_range mfr;
     mfr.command = 42;
     mfr.transaction_id = 1337;
+    mfr.offset = 0;
     int size = TEST_PACKET_SIZE * MED_MULT;
     char buf[size + sizeof(mtp_data_header) + 1];
     buf[size + sizeof(mtp_data_header)] = '\0';
@@ -189,6 +201,70 @@
     EXPECT_EQ(header->transaction_id, static_cast<unsigned int>(1337));
 }
 
+TEST_F(MtpFfsHandleTest, testSendFileMedPartial) {
+    std::stringstream ss;
+    mtp_file_range mfr;
+    mfr.fd = dummy_file.fd;
+    mfr.command = 42;
+    mfr.transaction_id = 1337;
+    int size = TEST_PACKET_SIZE * MED_MULT;
+    char buf[size + 1];
+    buf[size] = '\0';
+
+    for (int i = 0; i < MED_MULT; i++)
+        ss << dummyDataStr;
+
+    EXPECT_EQ(write(dummy_file.fd, ss.str().c_str(), size), size);
+
+    std::random_device rd;
+    std::mt19937 gen(rd());
+    std::uniform_int_distribution<> dis(1, TEST_PACKET_SIZE);
+    int offset = 0;
+    while (offset != size) {
+        mfr.offset = offset;
+        int length = std::min(size - offset, dis(gen));
+        mfr.length = length;
+        char temp_buf[length + sizeof(mtp_data_header)];
+        EXPECT_EQ(handle->sendFile(mfr), 0);
+
+        EXPECT_EQ(read(bulk_in, temp_buf, length + sizeof(mtp_data_header)),
+                static_cast<long>(length + sizeof(mtp_data_header)));
+
+        struct mtp_data_header *header = reinterpret_cast<struct mtp_data_header*>(temp_buf);
+        EXPECT_EQ(header->length, static_cast<unsigned int>(length + sizeof(mtp_data_header)));
+        EXPECT_EQ(header->type, static_cast<unsigned int>(2));
+        EXPECT_EQ(header->command, static_cast<unsigned int>(42));
+        EXPECT_EQ(header->transaction_id, static_cast<unsigned int>(1337));
+        memcpy(buf + offset, temp_buf + sizeof(mtp_data_header), length);
+        offset += length;
+    }
+    EXPECT_STREQ(buf, ss.str().c_str());
+}
+
+TEST_F(MtpFfsHandleTest, testSendFileEmpty) {
+    mtp_file_range mfr;
+    mfr.command = 42;
+    mfr.transaction_id = 1337;
+    mfr.offset = 0;
+    int size = 0;
+    char buf[size + sizeof(mtp_data_header) + 1];
+    buf[size + sizeof(mtp_data_header)] = '\0';
+
+    mfr.length = size;
+    mfr.fd = dummy_file.fd;
+
+    EXPECT_EQ(handle->sendFile(mfr), 0);
+
+    EXPECT_EQ(read(bulk_in, buf, size + sizeof(mtp_data_header)),
+            static_cast<long>(size + sizeof(mtp_data_header)));
+
+    struct mtp_data_header *header = reinterpret_cast<struct mtp_data_header*>(buf);
+    EXPECT_EQ(header->length, static_cast<unsigned int>(size + sizeof(mtp_data_header)));
+    EXPECT_EQ(header->type, static_cast<unsigned int>(2));
+    EXPECT_EQ(header->command, static_cast<unsigned int>(42));
+    EXPECT_EQ(header->transaction_id, static_cast<unsigned int>(1337));
+}
+
 TEST_F(MtpFfsHandleTest, testSendEvent) {
     struct mtp_event event;
     event.length = TEST_PACKET_SIZE;
diff --git a/media/utils/ISchedulingPolicyService.cpp b/media/utils/ISchedulingPolicyService.cpp
index f5bfe20..22fbc97 100644
--- a/media/utils/ISchedulingPolicyService.cpp
+++ b/media/utils/ISchedulingPolicyService.cpp
@@ -37,13 +37,15 @@
     {
     }
 
-    virtual int requestPriority(int32_t pid, int32_t tid, int32_t prio, bool asynchronous)
+    virtual int requestPriority(int32_t pid, int32_t tid,
+                                int32_t prio, bool isForApp, bool asynchronous)
     {
         Parcel data, reply;
         data.writeInterfaceToken(ISchedulingPolicyService::getInterfaceDescriptor());
         data.writeInt32(pid);
         data.writeInt32(tid);
         data.writeInt32(prio);
+        data.writeBool(isForApp);
         uint32_t flags = asynchronous ? IBinder::FLAG_ONEWAY : 0;
         status_t status = remote()->transact(REQUEST_PRIORITY_TRANSACTION, data, &reply, flags);
         if (status != NO_ERROR) {
diff --git a/media/utils/ISchedulingPolicyService.h b/media/utils/ISchedulingPolicyService.h
index b94b191..1015677 100644
--- a/media/utils/ISchedulingPolicyService.h
+++ b/media/utils/ISchedulingPolicyService.h
@@ -27,7 +27,7 @@
     DECLARE_META_INTERFACE(SchedulingPolicyService);
 
     virtual int         requestPriority(/*pid_t*/int32_t pid, /*pid_t*/int32_t tid,
-                                                int32_t prio, bool asynchronous) = 0;
+                                        int32_t prio, bool isForApp, bool asynchronous) = 0;
 
 };
 
diff --git a/media/utils/SchedulingPolicyService.cpp b/media/utils/SchedulingPolicyService.cpp
index 17ee9bc..d7055ef 100644
--- a/media/utils/SchedulingPolicyService.cpp
+++ b/media/utils/SchedulingPolicyService.cpp
@@ -28,7 +28,7 @@
 static const String16 _scheduling_policy("scheduling_policy");
 static Mutex sMutex;
 
-int requestPriority(pid_t pid, pid_t tid, int32_t prio, bool asynchronous)
+int requestPriority(pid_t pid, pid_t tid, int32_t prio, bool isForApp, bool asynchronous)
 {
     // FIXME merge duplicated code related to service lookup, caching, and error recovery
     int ret;
@@ -47,7 +47,7 @@
             sSchedulingPolicyService = sps;
             sMutex.unlock();
         }
-        ret = sps->requestPriority(pid, tid, prio, asynchronous);
+        ret = sps->requestPriority(pid, tid, prio, isForApp, asynchronous);
         if (ret != DEAD_OBJECT) {
             break;
         }
diff --git a/media/utils/include/mediautils/SchedulingPolicyService.h b/media/utils/include/mediautils/SchedulingPolicyService.h
index a9870d4..47d8734 100644
--- a/media/utils/include/mediautils/SchedulingPolicyService.h
+++ b/media/utils/include/mediautils/SchedulingPolicyService.h
@@ -24,7 +24,7 @@
 // The asynchronous parameter should be 'true' to return immediately,
 // after the request is enqueued but not necessarily executed.
 // The default value 'false' means to return after request has been enqueued and executed.
-int requestPriority(pid_t pid, pid_t tid, int32_t prio, bool asynchronous = false);
+int requestPriority(pid_t pid, pid_t tid, int32_t prio, bool isForApp, bool asynchronous = false);
 
 }   // namespace android
 
diff --git a/services/audioflinger/Android.mk b/services/audioflinger/Android.mk
index aa2cd95..0c620f4 100644
--- a/services/audioflinger/Android.mk
+++ b/services/audioflinger/Android.mk
@@ -30,7 +30,8 @@
     Effects.cpp                 \
     PatchPanel.cpp              \
     StateQueue.cpp              \
-    BufLog.cpp
+    BufLog.cpp                  \
+    TypedLogger.cpp
 
 LOCAL_C_INCLUDES := \
     $(TOPDIR)frameworks/av/services/audiopolicy \
diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index 1b39e22..3d1f268 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -70,6 +70,8 @@
 //#define BUFLOG_NDEBUG 0
 #include <BufLog.h>
 
+#include "TypedLogger.h"
+
 // ----------------------------------------------------------------------------
 
 // Note: the following macro is used for extremely verbose logging message.  In
@@ -97,6 +99,7 @@
 
 uint32_t AudioFlinger::mScreenState;
 
+
 #ifdef TEE_SINK
 bool AudioFlinger::mTeeSinkInputEnabled = false;
 bool AudioFlinger::mTeeSinkOutputEnabled = false;
@@ -111,6 +114,9 @@
 // we define a minimum time during which a global effect is considered enabled.
 static const nsecs_t kMinGlobalEffectEnabletimeNs = seconds(7200);
 
+Mutex gLock;
+wp<AudioFlinger> gAudioFlinger;
+
 // ----------------------------------------------------------------------------
 
 std::string formatToString(audio_format_t format) {
@@ -200,6 +206,8 @@
     mPatchPanel = new PatchPanel(this);
 
     mMode = AUDIO_MODE_NORMAL;
+
+    gAudioFlinger = this;
 }
 
 AudioFlinger::~AudioFlinger()
@@ -232,6 +240,84 @@
     }
 }
 
+//static
+__attribute__ ((visibility ("default")))
+status_t MmapStreamInterface::openMmapStream(MmapStreamInterface::stream_direction_t direction,
+                                             const audio_attributes_t *attr,
+                                             audio_config_base_t *config,
+                                             const MmapStreamInterface::Client& client,
+                                             audio_port_handle_t *deviceId,
+                                             const sp<MmapStreamCallback>& callback,
+                                             sp<MmapStreamInterface>& interface)
+{
+    sp<AudioFlinger> af;
+    {
+        Mutex::Autolock _l(gLock);
+        af = gAudioFlinger.promote();
+    }
+    status_t ret = NO_INIT;
+    if (af != 0) {
+        ret = af->openMmapStream(
+                direction, attr, config, client, deviceId, callback, interface);
+    }
+    return ret;
+}
+
+status_t AudioFlinger::openMmapStream(MmapStreamInterface::stream_direction_t direction,
+                                      const audio_attributes_t *attr,
+                                      audio_config_base_t *config,
+                                      const MmapStreamInterface::Client& client,
+                                      audio_port_handle_t *deviceId,
+                                      const sp<MmapStreamCallback>& callback,
+                                      sp<MmapStreamInterface>& interface)
+{
+    status_t ret = initCheck();
+    if (ret != NO_ERROR) {
+        return ret;
+    }
+
+    audio_session_t sessionId = (audio_session_t) newAudioUniqueId(AUDIO_UNIQUE_ID_USE_SESSION);
+    audio_stream_type_t streamType = AUDIO_STREAM_DEFAULT;
+    audio_io_handle_t io;
+    audio_port_handle_t portId = AUDIO_PORT_HANDLE_NONE;
+    if (direction == MmapStreamInterface::DIRECTION_OUTPUT) {
+        audio_config_t fullConfig = AUDIO_CONFIG_INITIALIZER;
+        fullConfig.sample_rate = config->sample_rate;
+        fullConfig.channel_mask = config->channel_mask;
+        fullConfig.format = config->format;
+        ret = AudioSystem::getOutputForAttr(attr, &io,
+                                            sessionId,
+                                            &streamType, client.clientUid,
+                                            &fullConfig,
+                                            (audio_output_flags_t)(AUDIO_OUTPUT_FLAG_MMAP_NOIRQ | AUDIO_OUTPUT_FLAG_DIRECT),
+                                            *deviceId, &portId);
+    } else {
+        ret = AudioSystem::getInputForAttr(attr, &io,
+                                              sessionId,
+                                              client.clientPid,
+                                              client.clientUid,
+                                              config,
+                                              AUDIO_INPUT_FLAG_MMAP_NOIRQ, *deviceId, &portId);
+    }
+    if (ret != NO_ERROR) {
+        return ret;
+    }
+
+    // at this stage, a MmapThread was created when openOutput() or openInput() was called by
+    // audio policy manager and we can retrieve it
+    sp<MmapThread> thread = mMmapThreads.valueFor(io);
+    if (thread != 0) {
+        interface = new MmapThreadHandle(thread);
+        thread->configure(attr, streamType, sessionId, callback, portId);
+    } else {
+        ret = NO_INIT;
+    }
+
+    ALOGV("%s done status %d portId %d", __FUNCTION__, ret, portId);
+
+    return ret;
+}
+
 static const char * const audio_interfaces[] = {
     AUDIO_HARDWARE_MODULE_ID_PRIMARY,
     AUDIO_HARDWARE_MODULE_ID_A2DP,
@@ -396,6 +482,11 @@
             mRecordThreads.valueAt(i)->dump(fd, args);
         }
 
+        // dump mmap threads
+        for (size_t i = 0; i < mMmapThreads.size(); i++) {
+            mMmapThreads.valueAt(i)->dump(fd, args);
+        }
+
         // dump orphan effect chains
         if (mOrphanEffectChains.size() != 0) {
             write(fd, "  Orphan Effect Chains\n", strlen("  Orphan Effect Chains\n"));
@@ -906,11 +997,9 @@
     // assigned to HALs which do not have master mute support will apply master
     // mute during the mix operation.  Threads with HALs which do support master
     // mute will simply ignore the setting.
-    for (size_t i = 0; i < mPlaybackThreads.size(); i++) {
-        if (mPlaybackThreads.valueAt(i)->isDuplicating()) {
-            continue;
-        }
-        mPlaybackThreads.valueAt(i)->setMasterMute(muted);
+    Vector<VolumeInterface *> volumeInterfaces = getAllVolumeInterfaces_l();
+    for (size_t i = 0; i < volumeInterfaces.size(); i++) {
+        volumeInterfaces[i]->setMasterMute(muted);
     }
 
     return NO_ERROR;
@@ -941,12 +1030,12 @@
 status_t AudioFlinger::checkStreamType(audio_stream_type_t stream) const
 {
     if (uint32_t(stream) >= AUDIO_STREAM_CNT) {
-        ALOGW("setStreamVolume() invalid stream %d", stream);
+        ALOGW("checkStreamType() invalid stream %d", stream);
         return BAD_VALUE;
     }
     pid_t caller = IPCThreadState::self()->getCallingPid();
     if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT && caller != getpid_cached) {
-        ALOGW("setStreamVolume() pid %d cannot use internal stream type %d", caller, stream);
+        ALOGW("checkStreamType() pid %d cannot use internal stream type %d", caller, stream);
         return PERMISSION_DENIED;
     }
 
@@ -968,22 +1057,22 @@
     ALOG_ASSERT(stream != AUDIO_STREAM_PATCH, "attempt to change AUDIO_STREAM_PATCH volume");
 
     AutoMutex lock(mLock);
-    PlaybackThread *thread = NULL;
+    Vector<VolumeInterface *> volumeInterfaces;
     if (output != AUDIO_IO_HANDLE_NONE) {
-        thread = checkPlaybackThread_l(output);
-        if (thread == NULL) {
+        VolumeInterface *volumeInterface = getVolumeInterface_l(output);
+        if (volumeInterface == NULL) {
             return BAD_VALUE;
         }
+        volumeInterfaces.add(volumeInterface);
     }
 
     mStreamTypes[stream].volume = value;
 
-    if (thread == NULL) {
-        for (size_t i = 0; i < mPlaybackThreads.size(); i++) {
-            mPlaybackThreads.valueAt(i)->setStreamVolume(stream, value);
-        }
-    } else {
-        thread->setStreamVolume(stream, value);
+    if (volumeInterfaces.size() == 0) {
+        volumeInterfaces = getAllVolumeInterfaces_l();
+    }
+    for (size_t i = 0; i < volumeInterfaces.size(); i++) {
+        volumeInterfaces[i]->setStreamVolume(stream, value);
     }
 
     return NO_ERROR;
@@ -1009,8 +1098,10 @@
 
     AutoMutex lock(mLock);
     mStreamTypes[stream].mute = muted;
-    for (size_t i = 0; i < mPlaybackThreads.size(); i++)
-        mPlaybackThreads.valueAt(i)->setStreamMute(stream, muted);
+    Vector<VolumeInterface *> volumeInterfaces = getAllVolumeInterfaces_l();
+    for (size_t i = 0; i < volumeInterfaces.size(); i++) {
+        volumeInterfaces[i]->setStreamMute(stream, muted);
+    }
 
     return NO_ERROR;
 }
@@ -1025,11 +1116,12 @@
     AutoMutex lock(mLock);
     float volume;
     if (output != AUDIO_IO_HANDLE_NONE) {
-        PlaybackThread *thread = checkPlaybackThread_l(output);
-        if (thread == NULL) {
-            return 0.0f;
+        VolumeInterface *volumeInterface = getVolumeInterface_l(output);
+        if (volumeInterface != NULL) {
+            volume = volumeInterface->streamVolume(stream);
+        } else {
+            volume = 0.0f;
         }
-        volume = thread->streamVolume(stream);
     } else {
         volume = streamVolume_l(stream);
     }
@@ -1130,6 +1222,9 @@
         thread = checkPlaybackThread_l(ioHandle);
         if (thread == 0) {
             thread = checkRecordThread_l(ioHandle);
+            if (thread == 0) {
+                thread = checkMmapThread_l(ioHandle);
+            }
         } else if (thread == primaryPlaybackThread_l()) {
             // indicate output device change to all input threads for pre processing
             AudioParameter param = AudioParameter(keyValuePairs);
@@ -1171,15 +1266,17 @@
         return out_s8;
     }
 
-    PlaybackThread *playbackThread = checkPlaybackThread_l(ioHandle);
-    if (playbackThread != NULL) {
-        return playbackThread->getParameters(keys);
+    ThreadBase *thread = (ThreadBase *)checkPlaybackThread_l(ioHandle);
+    if (thread == NULL) {
+        thread = (ThreadBase *)checkRecordThread_l(ioHandle);
+        if (thread == NULL) {
+            thread = (ThreadBase *)checkMmapThread_l(ioHandle);
+            if (thread == NULL) {
+                String8("");
+            }
+        }
     }
-    RecordThread *recordThread = checkRecordThread_l(ioHandle);
-    if (recordThread != NULL) {
-        return recordThread->getParameters(keys);
-    }
-    return String8("");
+    return thread->getParameters(keys);
 }
 
 size_t AudioFlinger::getInputBufferSize(uint32_t sampleRate, audio_format_t format,
@@ -1785,7 +1882,7 @@
 // ----------------------------------------------------------------------------
 
 
-sp<AudioFlinger::PlaybackThread> AudioFlinger::openOutput_l(audio_module_handle_t module,
+sp<AudioFlinger::ThreadBase> AudioFlinger::openOutput_l(audio_module_handle_t module,
                                                             audio_io_handle_t *output,
                                                             audio_config_t *config,
                                                             audio_devices_t devices,
@@ -1841,22 +1938,34 @@
     mHardwareStatus = AUDIO_HW_IDLE;
 
     if (status == NO_ERROR) {
-
-        PlaybackThread *thread;
-        if (flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) {
-            thread = new OffloadThread(this, outputStream, *output, devices, mSystemReady);
-            ALOGV("openOutput_l() created offload output: ID %d thread %p", *output, thread);
-        } else if ((flags & AUDIO_OUTPUT_FLAG_DIRECT)
-                || !isValidPcmSinkFormat(config->format)
-                || !isValidPcmSinkChannelMask(config->channel_mask)) {
-            thread = new DirectOutputThread(this, outputStream, *output, devices, mSystemReady);
-            ALOGV("openOutput_l() created direct output: ID %d thread %p", *output, thread);
+        if (flags & AUDIO_OUTPUT_FLAG_MMAP_NOIRQ) {
+            sp<MmapPlaybackThread> thread =
+                    new MmapPlaybackThread(this, *output, outHwDev, outputStream,
+                                          devices, AUDIO_DEVICE_NONE, mSystemReady);
+            mMmapThreads.add(*output, thread);
+            ALOGV("openOutput_l() created mmap playback thread: ID %d thread %p",
+                  *output, thread.get());
+            return thread;
         } else {
-            thread = new MixerThread(this, outputStream, *output, devices, mSystemReady);
-            ALOGV("openOutput_l() created mixer output: ID %d thread %p", *output, thread);
+            sp<PlaybackThread> thread;
+            if (flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) {
+                thread = new OffloadThread(this, outputStream, *output, devices, mSystemReady);
+                ALOGV("openOutput_l() created offload output: ID %d thread %p",
+                      *output, thread.get());
+            } else if ((flags & AUDIO_OUTPUT_FLAG_DIRECT)
+                    || !isValidPcmSinkFormat(config->format)
+                    || !isValidPcmSinkChannelMask(config->channel_mask)) {
+                thread = new DirectOutputThread(this, outputStream, *output, devices, mSystemReady);
+                ALOGV("openOutput_l() created direct output: ID %d thread %p",
+                      *output, thread.get());
+            } else {
+                thread = new MixerThread(this, outputStream, *output, devices, mSystemReady);
+                ALOGV("openOutput_l() created mixer output: ID %d thread %p",
+                      *output, thread.get());
+            }
+            mPlaybackThreads.add(*output, thread);
+            return thread;
         }
-        mPlaybackThreads.add(*output, thread);
-        return thread;
     }
 
     return 0;
@@ -1870,8 +1979,8 @@
                                   uint32_t *latencyMs,
                                   audio_output_flags_t flags)
 {
-    ALOGI("openOutput(), module %d Device %x, SamplingRate %d, Format %#08x, Channels %x, flags %x",
-              module,
+    ALOGI("openOutput() this %p, module %d Device %x, SamplingRate %d, Format %#08x, Channels %x, flags %x",
+              this, module,
               (devices != NULL) ? *devices : 0,
               config->sample_rate,
               config->format,
@@ -1884,22 +1993,28 @@
 
     Mutex::Autolock _l(mLock);
 
-    sp<PlaybackThread> thread = openOutput_l(module, output, config, *devices, address, flags);
+    sp<ThreadBase> thread = openOutput_l(module, output, config, *devices, address, flags);
     if (thread != 0) {
-        *latencyMs = thread->latency();
+        if ((flags & AUDIO_OUTPUT_FLAG_MMAP_NOIRQ) == 0) {
+            PlaybackThread *playbackThread = (PlaybackThread *)thread.get();
+            *latencyMs = playbackThread->latency();
 
-        // notify client processes of the new output creation
-        thread->ioConfigChanged(AUDIO_OUTPUT_OPENED);
+            // notify client processes of the new output creation
+            playbackThread->ioConfigChanged(AUDIO_OUTPUT_OPENED);
 
-        // the first primary output opened designates the primary hw device
-        if ((mPrimaryHardwareDev == NULL) && (flags & AUDIO_OUTPUT_FLAG_PRIMARY)) {
-            ALOGI("Using module %d has the primary audio interface", module);
-            mPrimaryHardwareDev = thread->getOutput()->audioHwDev;
+            // the first primary output opened designates the primary hw device
+            if ((mPrimaryHardwareDev == NULL) && (flags & AUDIO_OUTPUT_FLAG_PRIMARY)) {
+                ALOGI("Using module %d has the primary audio interface", module);
+                mPrimaryHardwareDev = playbackThread->getOutput()->audioHwDev;
 
-            AutoMutex lock(mHardwareLock);
-            mHardwareStatus = AUDIO_HW_SET_MODE;
-            mPrimaryHardwareDev->hwDevice()->setMode(mMode);
-            mHardwareStatus = AUDIO_HW_IDLE;
+                AutoMutex lock(mHardwareLock);
+                mHardwareStatus = AUDIO_HW_SET_MODE;
+                mPrimaryHardwareDev->hwDevice()->setMode(mMode);
+                mHardwareStatus = AUDIO_HW_IDLE;
+            }
+        } else {
+            MmapThread *mmapThread = (MmapThread *)thread.get();
+            mmapThread->ioConfigChanged(AUDIO_OUTPUT_OPENED);
         }
         return NO_ERROR;
     }
@@ -1938,54 +2053,68 @@
 {
     // keep strong reference on the playback thread so that
     // it is not destroyed while exit() is executed
-    sp<PlaybackThread> thread;
+    sp<PlaybackThread> playbackThread;
+    sp<MmapPlaybackThread> mmapThread;
     {
         Mutex::Autolock _l(mLock);
-        thread = checkPlaybackThread_l(output);
-        if (thread == NULL) {
-            return BAD_VALUE;
-        }
+        playbackThread = checkPlaybackThread_l(output);
+        if (playbackThread != NULL) {
+            ALOGV("closeOutput() %d", output);
 
-        ALOGV("closeOutput() %d", output);
-
-        if (thread->type() == ThreadBase::MIXER) {
-            for (size_t i = 0; i < mPlaybackThreads.size(); i++) {
-                if (mPlaybackThreads.valueAt(i)->isDuplicating()) {
-                    DuplicatingThread *dupThread =
-                            (DuplicatingThread *)mPlaybackThreads.valueAt(i).get();
-                    dupThread->removeOutputTrack((MixerThread *)thread.get());
+            if (playbackThread->type() == ThreadBase::MIXER) {
+                for (size_t i = 0; i < mPlaybackThreads.size(); i++) {
+                    if (mPlaybackThreads.valueAt(i)->isDuplicating()) {
+                        DuplicatingThread *dupThread =
+                                (DuplicatingThread *)mPlaybackThreads.valueAt(i).get();
+                        dupThread->removeOutputTrack((MixerThread *)playbackThread.get());
+                    }
                 }
             }
-        }
 
 
-        mPlaybackThreads.removeItem(output);
-        // save all effects to the default thread
-        if (mPlaybackThreads.size()) {
-            PlaybackThread *dstThread = checkPlaybackThread_l(mPlaybackThreads.keyAt(0));
-            if (dstThread != NULL) {
-                // audioflinger lock is held here so the acquisition order of thread locks does not
-                // matter
-                Mutex::Autolock _dl(dstThread->mLock);
-                Mutex::Autolock _sl(thread->mLock);
-                Vector< sp<EffectChain> > effectChains = thread->getEffectChains_l();
-                for (size_t i = 0; i < effectChains.size(); i ++) {
-                    moveEffectChain_l(effectChains[i]->sessionId(), thread.get(), dstThread, true);
+            mPlaybackThreads.removeItem(output);
+            // save all effects to the default thread
+            if (mPlaybackThreads.size()) {
+                PlaybackThread *dstThread = checkPlaybackThread_l(mPlaybackThreads.keyAt(0));
+                if (dstThread != NULL) {
+                    // audioflinger lock is held here so the acquisition order of thread locks does not
+                    // matter
+                    Mutex::Autolock _dl(dstThread->mLock);
+                    Mutex::Autolock _sl(playbackThread->mLock);
+                    Vector< sp<EffectChain> > effectChains = playbackThread->getEffectChains_l();
+                    for (size_t i = 0; i < effectChains.size(); i ++) {
+                        moveEffectChain_l(effectChains[i]->sessionId(), playbackThread.get(), dstThread, true);
+                    }
                 }
             }
+        } else {
+            mmapThread = (MmapPlaybackThread *)checkMmapThread_l(output);
+            if (mmapThread == 0) {
+                return BAD_VALUE;
+            }
+            mMmapThreads.removeItem(output);
+            ALOGV("closing mmapThread %p", mmapThread.get());
         }
         const sp<AudioIoDescriptor> ioDesc = new AudioIoDescriptor();
         ioDesc->mIoHandle = output;
         ioConfigChanged(AUDIO_OUTPUT_CLOSED, ioDesc);
     }
-    thread->exit();
     // The thread entity (active unit of execution) is no longer running here,
     // but the ThreadBase container still exists.
 
-    if (!thread->isDuplicating()) {
-        closeOutputFinish(thread);
+    if (playbackThread != 0) {
+        playbackThread->exit();
+        if (!playbackThread->isDuplicating()) {
+            closeOutputFinish(playbackThread);
+        }
+    } else if (mmapThread != 0) {
+        ALOGV("mmapThread exit()");
+        mmapThread->exit();
+        AudioStreamOut *out = mmapThread->clearOutput();
+        ALOG_ASSERT(out != NULL, "out shouldn't be NULL");
+        // from now on thread->mOutput is NULL
+        delete out;
     }
-
     return NO_ERROR;
 }
 
@@ -2049,7 +2178,7 @@
         return BAD_VALUE;
     }
 
-    sp<RecordThread> thread = openInput_l(module, input, config, *devices, address, source, flags);
+    sp<ThreadBase> thread = openInput_l(module, input, config, *devices, address, source, flags);
 
     if (thread != 0) {
         // notify client processes of the new input creation
@@ -2059,7 +2188,7 @@
     return NO_INIT;
 }
 
-sp<AudioFlinger::RecordThread> AudioFlinger::openInput_l(audio_module_handle_t module,
+sp<AudioFlinger::ThreadBase> AudioFlinger::openInput_l(audio_module_handle_t module,
                                                          audio_io_handle_t *input,
                                                          audio_config_t *config,
                                                          audio_devices_t devices,
@@ -2119,74 +2248,82 @@
     }
 
     if (status == NO_ERROR && inStream != 0) {
-
-#ifdef TEE_SINK
-        // Try to re-use most recently used Pipe to archive a copy of input for dumpsys,
-        // or (re-)create if current Pipe is idle and does not match the new format
-        sp<NBAIO_Sink> teeSink;
-        enum {
-            TEE_SINK_NO,    // don't copy input
-            TEE_SINK_NEW,   // copy input using a new pipe
-            TEE_SINK_OLD,   // copy input using an existing pipe
-        } kind;
-        NBAIO_Format format = Format_from_SR_C(halconfig.sample_rate,
-                audio_channel_count_from_in_mask(halconfig.channel_mask), halconfig.format);
-        if (!mTeeSinkInputEnabled) {
-            kind = TEE_SINK_NO;
-        } else if (!Format_isValid(format)) {
-            kind = TEE_SINK_NO;
-        } else if (mRecordTeeSink == 0) {
-            kind = TEE_SINK_NEW;
-        } else if (mRecordTeeSink->getStrongCount() != 1) {
-            kind = TEE_SINK_NO;
-        } else if (Format_isEqual(format, mRecordTeeSink->format())) {
-            kind = TEE_SINK_OLD;
-        } else {
-            kind = TEE_SINK_NEW;
-        }
-        switch (kind) {
-        case TEE_SINK_NEW: {
-            Pipe *pipe = new Pipe(mTeeSinkInputFrames, format);
-            size_t numCounterOffers = 0;
-            const NBAIO_Format offers[1] = {format};
-            ssize_t index = pipe->negotiate(offers, 1, NULL, numCounterOffers);
-            ALOG_ASSERT(index == 0);
-            PipeReader *pipeReader = new PipeReader(*pipe);
-            numCounterOffers = 0;
-            index = pipeReader->negotiate(offers, 1, NULL, numCounterOffers);
-            ALOG_ASSERT(index == 0);
-            mRecordTeeSink = pipe;
-            mRecordTeeSource = pipeReader;
-            teeSink = pipe;
-            }
-            break;
-        case TEE_SINK_OLD:
-            teeSink = mRecordTeeSink;
-            break;
-        case TEE_SINK_NO:
-        default:
-            break;
-        }
-#endif
-
         AudioStreamIn *inputStream = new AudioStreamIn(inHwDev, inStream, flags);
-
-        // Start record thread
-        // RecordThread requires both input and output device indication to forward to audio
-        // pre processing modules
-        sp<RecordThread> thread = new RecordThread(this,
-                                  inputStream,
-                                  *input,
-                                  primaryOutputDevice_l(),
-                                  devices,
-                                  mSystemReady
+        if ((flags & AUDIO_INPUT_FLAG_MMAP_NOIRQ) != 0) {
+            sp<MmapCaptureThread> thread =
+                    new MmapCaptureThread(this, *input,
+                                          inHwDev, inputStream,
+                                          primaryOutputDevice_l(), devices, mSystemReady);
+            mMmapThreads.add(*input, thread);
+            ALOGV("openInput_l() created mmap capture thread: ID %d thread %p", *input, thread.get());
+            return thread;
+        } else {
 #ifdef TEE_SINK
-                                  , teeSink
+            // Try to re-use most recently used Pipe to archive a copy of input for dumpsys,
+            // or (re-)create if current Pipe is idle and does not match the new format
+            sp<NBAIO_Sink> teeSink;
+            enum {
+                TEE_SINK_NO,    // don't copy input
+                TEE_SINK_NEW,   // copy input using a new pipe
+                TEE_SINK_OLD,   // copy input using an existing pipe
+            } kind;
+            NBAIO_Format format = Format_from_SR_C(halconfig.sample_rate,
+                    audio_channel_count_from_in_mask(halconfig.channel_mask), halconfig.format);
+            if (!mTeeSinkInputEnabled) {
+                kind = TEE_SINK_NO;
+            } else if (!Format_isValid(format)) {
+                kind = TEE_SINK_NO;
+            } else if (mRecordTeeSink == 0) {
+                kind = TEE_SINK_NEW;
+            } else if (mRecordTeeSink->getStrongCount() != 1) {
+                kind = TEE_SINK_NO;
+            } else if (Format_isEqual(format, mRecordTeeSink->format())) {
+                kind = TEE_SINK_OLD;
+            } else {
+                kind = TEE_SINK_NEW;
+            }
+            switch (kind) {
+            case TEE_SINK_NEW: {
+                Pipe *pipe = new Pipe(mTeeSinkInputFrames, format);
+                size_t numCounterOffers = 0;
+                const NBAIO_Format offers[1] = {format};
+                ssize_t index = pipe->negotiate(offers, 1, NULL, numCounterOffers);
+                ALOG_ASSERT(index == 0);
+                PipeReader *pipeReader = new PipeReader(*pipe);
+                numCounterOffers = 0;
+                index = pipeReader->negotiate(offers, 1, NULL, numCounterOffers);
+                ALOG_ASSERT(index == 0);
+                mRecordTeeSink = pipe;
+                mRecordTeeSource = pipeReader;
+                teeSink = pipe;
+                }
+                break;
+            case TEE_SINK_OLD:
+                teeSink = mRecordTeeSink;
+                break;
+            case TEE_SINK_NO:
+            default:
+                break;
+            }
 #endif
-                                  );
-        mRecordThreads.add(*input, thread);
-        ALOGV("openInput_l() created record thread: ID %d thread %p", *input, thread.get());
-        return thread;
+
+            // Start record thread
+            // RecordThread requires both input and output device indication to forward to audio
+            // pre processing modules
+            sp<RecordThread> thread = new RecordThread(this,
+                                      inputStream,
+                                      *input,
+                                      primaryOutputDevice_l(),
+                                      devices,
+                                      mSystemReady
+#ifdef TEE_SINK
+                                      , teeSink
+#endif
+                                      );
+            mRecordThreads.add(*input, thread);
+            ALOGV("openInput_l() created record thread: ID %d thread %p", *input, thread.get());
+            return thread;
+        }
     }
 
     *input = AUDIO_IO_HANDLE_NONE;
@@ -2202,60 +2339,73 @@
 {
     // keep strong reference on the record thread so that
     // it is not destroyed while exit() is executed
-    sp<RecordThread> thread;
+    sp<RecordThread> recordThread;
+    sp<MmapCaptureThread> mmapThread;
     {
         Mutex::Autolock _l(mLock);
-        thread = checkRecordThread_l(input);
-        if (thread == 0) {
-            return BAD_VALUE;
-        }
+        recordThread = checkRecordThread_l(input);
+        if (recordThread != 0) {
+            ALOGV("closeInput() %d", input);
 
-        ALOGV("closeInput() %d", input);
-
-        // If we still have effect chains, it means that a client still holds a handle
-        // on at least one effect. We must either move the chain to an existing thread with the
-        // same session ID or put it aside in case a new record thread is opened for a
-        // new capture on the same session
-        sp<EffectChain> chain;
-        {
-            Mutex::Autolock _sl(thread->mLock);
-            Vector< sp<EffectChain> > effectChains = thread->getEffectChains_l();
-            // Note: maximum one chain per record thread
-            if (effectChains.size() != 0) {
-                chain = effectChains[0];
-            }
-        }
-        if (chain != 0) {
-            // first check if a record thread is already opened with a client on the same session.
-            // This should only happen in case of overlap between one thread tear down and the
-            // creation of its replacement
-            size_t i;
-            for (i = 0; i < mRecordThreads.size(); i++) {
-                sp<RecordThread> t = mRecordThreads.valueAt(i);
-                if (t == thread) {
-                    continue;
-                }
-                if (t->hasAudioSession(chain->sessionId()) != 0) {
-                    Mutex::Autolock _l(t->mLock);
-                    ALOGV("closeInput() found thread %d for effect session %d",
-                          t->id(), chain->sessionId());
-                    t->addEffectChain_l(chain);
-                    break;
+            // If we still have effect chains, it means that a client still holds a handle
+            // on at least one effect. We must either move the chain to an existing thread with the
+            // same session ID or put it aside in case a new record thread is opened for a
+            // new capture on the same session
+            sp<EffectChain> chain;
+            {
+                Mutex::Autolock _sl(recordThread->mLock);
+                Vector< sp<EffectChain> > effectChains = recordThread->getEffectChains_l();
+                // Note: maximum one chain per record thread
+                if (effectChains.size() != 0) {
+                    chain = effectChains[0];
                 }
             }
-            // put the chain aside if we could not find a record thread with the same session id.
-            if (i == mRecordThreads.size()) {
-                putOrphanEffectChain_l(chain);
+            if (chain != 0) {
+                // first check if a record thread is already opened with a client on the same session.
+                // This should only happen in case of overlap between one thread tear down and the
+                // creation of its replacement
+                size_t i;
+                for (i = 0; i < mRecordThreads.size(); i++) {
+                    sp<RecordThread> t = mRecordThreads.valueAt(i);
+                    if (t == recordThread) {
+                        continue;
+                    }
+                    if (t->hasAudioSession(chain->sessionId()) != 0) {
+                        Mutex::Autolock _l(t->mLock);
+                        ALOGV("closeInput() found thread %d for effect session %d",
+                              t->id(), chain->sessionId());
+                        t->addEffectChain_l(chain);
+                        break;
+                    }
+                }
+                // put the chain aside if we could not find a record thread with the same session id.
+                if (i == mRecordThreads.size()) {
+                    putOrphanEffectChain_l(chain);
+                }
             }
+            mRecordThreads.removeItem(input);
+        } else {
+            mmapThread = (MmapCaptureThread *)checkMmapThread_l(input);
+            if (mmapThread == 0) {
+                return BAD_VALUE;
+            }
+            mMmapThreads.removeItem(input);
         }
         const sp<AudioIoDescriptor> ioDesc = new AudioIoDescriptor();
         ioDesc->mIoHandle = input;
         ioConfigChanged(AUDIO_INPUT_CLOSED, ioDesc);
-        mRecordThreads.removeItem(input);
     }
     // FIXME: calling thread->exit() without mLock held should not be needed anymore now that
     // we have a different lock for notification client
-    closeInputFinish(thread);
+    if (recordThread != 0) {
+        closeInputFinish(recordThread);
+    } else if (mmapThread != 0) {
+        mmapThread->exit();
+        AudioStreamIn *in = mmapThread->clearInput();
+        ALOG_ASSERT(in != NULL, "in shouldn't be NULL");
+        // from now on thread->mInput is NULL
+        delete in;
+    }
     return NO_ERROR;
 }
 
@@ -2283,7 +2433,9 @@
         PlaybackThread *thread = mPlaybackThreads.valueAt(i).get();
         thread->invalidateTracks(stream);
     }
-
+    for (size_t i = 0; i < mMmapThreads.size(); i++) {
+        mMmapThreads[i]->invalidateTracks(stream);
+    }
     return NO_ERROR;
 }
 
@@ -2433,16 +2585,18 @@
 // checkThread_l() must be called with AudioFlinger::mLock held
 AudioFlinger::ThreadBase *AudioFlinger::checkThread_l(audio_io_handle_t ioHandle) const
 {
-    ThreadBase *thread = NULL;
-    switch (audio_unique_id_get_use(ioHandle)) {
-    case AUDIO_UNIQUE_ID_USE_OUTPUT:
-        thread = checkPlaybackThread_l(ioHandle);
-        break;
-    case AUDIO_UNIQUE_ID_USE_INPUT:
-        thread = checkRecordThread_l(ioHandle);
-        break;
-    default:
-        break;
+    ThreadBase *thread = checkMmapThread_l(ioHandle);
+    if (thread == 0) {
+        switch (audio_unique_id_get_use(ioHandle)) {
+        case AUDIO_UNIQUE_ID_USE_OUTPUT:
+            thread = checkPlaybackThread_l(ioHandle);
+            break;
+        case AUDIO_UNIQUE_ID_USE_INPUT:
+            thread = checkRecordThread_l(ioHandle);
+            break;
+        default:
+            break;
+        }
     }
     return thread;
 }
@@ -2466,6 +2620,42 @@
     return mRecordThreads.valueFor(input).get();
 }
 
+// checkMmapThread_l() must be called with AudioFlinger::mLock held
+AudioFlinger::MmapThread *AudioFlinger::checkMmapThread_l(audio_io_handle_t io) const
+{
+    return mMmapThreads.valueFor(io).get();
+}
+
+
+// checkPlaybackThread_l() must be called with AudioFlinger::mLock held
+AudioFlinger::VolumeInterface *AudioFlinger::getVolumeInterface_l(audio_io_handle_t output) const
+{
+    VolumeInterface *volumeInterface = (VolumeInterface *)mPlaybackThreads.valueFor(output).get();
+    if (volumeInterface == nullptr) {
+        MmapThread *mmapThread = mMmapThreads.valueFor(output).get();
+        if (mmapThread != nullptr) {
+            if (mmapThread->isOutput()) {
+                volumeInterface = (VolumeInterface *)mmapThread;
+            }
+        }
+    }
+    return volumeInterface;
+}
+
+Vector <AudioFlinger::VolumeInterface *> AudioFlinger::getAllVolumeInterfaces_l() const
+{
+    Vector <VolumeInterface *> volumeInterfaces;
+    for (size_t i = 0; i < mPlaybackThreads.size(); i++) {
+        volumeInterfaces.add((VolumeInterface *)mPlaybackThreads.valueAt(i).get());
+    }
+    for (size_t i = 0; i < mMmapThreads.size(); i++) {
+        if (mMmapThreads.valueAt(i)->isOutput()) {
+            volumeInterfaces.add((VolumeInterface *)mMmapThreads.valueAt(i).get());
+        }
+    }
+    return volumeInterfaces;
+}
+
 audio_unique_id_t AudioFlinger::nextUniqueId(audio_unique_id_use_t use)
 {
     // This is the internal API, so it is OK to assert on bad parameter.
@@ -2757,7 +2947,7 @@
                     break;
                 }
             }
-            if (io == 0) {
+            if (io == AUDIO_IO_HANDLE_NONE) {
                 for (size_t i = 0; i < mRecordThreads.size(); i++) {
                     if (mRecordThreads.valueAt(i)->hasAudioSession(sessionId) != 0) {
                         io = mRecordThreads.keyAt(i);
@@ -2765,6 +2955,14 @@
                     }
                 }
             }
+            if (io == AUDIO_IO_HANDLE_NONE) {
+                for (size_t i = 0; i < mMmapThreads.size(); i++) {
+                    if (mMmapThreads.valueAt(i)->hasAudioSession(sessionId) != 0) {
+                        io = mMmapThreads.keyAt(i);
+                        break;
+                    }
+                }
+            }
             // If no output thread contains the requested session ID, default to
             // first output. The effect chain will be moved to the correct output
             // thread when a track with the same session ID is created
@@ -2777,9 +2975,12 @@
         if (thread == NULL) {
             thread = checkPlaybackThread_l(io);
             if (thread == NULL) {
-                ALOGE("createEffect() unknown output thread");
-                lStatus = BAD_VALUE;
-                goto Exit;
+                thread = checkMmapThread_l(io);
+                if (thread == NULL) {
+                    ALOGE("createEffect() unknown output thread");
+                    lStatus = BAD_VALUE;
+                    goto Exit;
+                }
             }
         } else {
             // Check if one effect chain was awaiting for an effect to be created on this
diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index e97d1ed..44fd512 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -34,6 +34,8 @@
 #include <media/IAudioRecord.h>
 #include <media/AudioSystem.h>
 #include <media/AudioTrack.h>
+#include <media/MmapStreamInterface.h>
+#include <media/MmapStreamCallback.h>
 
 #include <utils/Atomic.h>
 #include <utils/Errors.h>
@@ -54,6 +56,7 @@
 #include <media/AudioMixer.h>
 #include <media/ExtendedAudioBufferProvider.h>
 #include <media/LinearMap.h>
+#include <media/VolumeShaper.h>
 
 #include "FastCapture.h"
 #include "FastMixer.h"
@@ -100,6 +103,7 @@
     public BnAudioFlinger
 {
     friend class BinderService<AudioFlinger>;   // for AudioFlinger()
+
 public:
     static const char* getServiceName() ANDROID_API { return "media.audio_flinger"; }
 
@@ -283,6 +287,14 @@
     sp<NBLog::Writer>   newWriter_l(size_t size, const char *name);
     void                unregisterWriter(const sp<NBLog::Writer>& writer);
     sp<EffectsFactoryHalInterface> getEffectsFactory();
+
+    status_t openMmapStream(MmapStreamInterface::stream_direction_t direction,
+                            const audio_attributes_t *attr,
+                            audio_config_base_t *config,
+                            const MmapStreamInterface::Client& client,
+                            audio_port_handle_t *deviceId,
+                            const sp<MmapStreamCallback>& callback,
+                            sp<MmapStreamInterface>& interface);
 private:
     static const size_t kLogMemorySize = 40 * 1024;
     sp<MemoryDealer>    mLogMemoryDealer;   // == 0 when NBLog is disabled
@@ -290,6 +302,7 @@
     // for as long as possible.  The memory is only freed when it is needed for another log writer.
     Vector< sp<NBLog::Writer> > mUnregisteredWriters;
     Mutex               mUnregisteredWritersLock;
+
 public:
 
     class SyncEvent;
@@ -506,6 +519,10 @@
         virtual void        pause();
         virtual status_t    attachAuxEffect(int effectId);
         virtual status_t    setParameters(const String8& keyValuePairs);
+        virtual VolumeShaper::Status applyVolumeShaper(
+                const sp<VolumeShaper::Configuration>& configuration,
+                const sp<VolumeShaper::Operation>& operation) override;
+        virtual sp<VolumeShaper::State> getVolumeShaperState(int id) override;
         virtual status_t    getTimestamp(AudioTimestamp& timestamp);
         virtual void        signal(); // signal playback thread for a change in control block
 
@@ -533,19 +550,40 @@
         void                stop_nonvirtual();
     };
 
+    // Mmap stream control interface implementation. Each MmapThreadHandle controls one
+    // MmapPlaybackThread or MmapCaptureThread instance.
+    class MmapThreadHandle : public MmapStreamInterface {
+    public:
+        explicit            MmapThreadHandle(const sp<MmapThread>& thread);
+        virtual             ~MmapThreadHandle();
+
+        // MmapStreamInterface virtuals
+        virtual status_t createMmapBuffer(int32_t minSizeFrames,
+                                          struct audio_mmap_buffer_info *info);
+        virtual status_t getMmapPosition(struct audio_mmap_position *position);
+        virtual status_t start(const MmapStreamInterface::Client& client, audio_port_handle_t *handle);
+        virtual status_t stop(audio_port_handle_t handle);
+
+    private:
+        sp<MmapThread> mThread;
+    };
 
               ThreadBase *checkThread_l(audio_io_handle_t ioHandle) const;
               PlaybackThread *checkPlaybackThread_l(audio_io_handle_t output) const;
               MixerThread *checkMixerThread_l(audio_io_handle_t output) const;
               RecordThread *checkRecordThread_l(audio_io_handle_t input) const;
-              sp<RecordThread> openInput_l(audio_module_handle_t module,
+              MmapThread *checkMmapThread_l(audio_io_handle_t io) const;
+              VolumeInterface *getVolumeInterface_l(audio_io_handle_t output) const;
+              Vector <VolumeInterface *> getAllVolumeInterfaces_l() const;
+
+              sp<ThreadBase> openInput_l(audio_module_handle_t module,
                                            audio_io_handle_t *input,
                                            audio_config_t *config,
                                            audio_devices_t device,
                                            const String8& address,
                                            audio_source_t source,
                                            audio_input_flags_t flags);
-              sp<PlaybackThread> openOutput_l(audio_module_handle_t module,
+              sp<ThreadBase> openOutput_l(audio_module_handle_t module,
                                               audio_io_handle_t *output,
                                               audio_config_t *config,
                                               audio_devices_t devices,
@@ -722,6 +760,12 @@
 
                 // list of sessions for which a valid HW A/V sync ID was retrieved from the HAL
                 DefaultKeyedVector< audio_session_t , audio_hw_sync_t >mHwAvSyncIds;
+
+                // list of MMAP stream control threads. Those threads allow for wake lock, routing
+                // and volume control for activity on the associated MMAP stream at the HAL.
+                // Audio data transfer is directly handled by the client creating the MMAP stream
+                DefaultKeyedVector< audio_io_handle_t, sp<MmapThread> >  mMmapThreads;
+
 private:
     sp<Client>  registerPid(pid_t pid);    // always returns non-0
 
diff --git a/services/audioflinger/Effects.cpp b/services/audioflinger/Effects.cpp
index 70929e4..1262746 100644
--- a/services/audioflinger/Effects.cpp
+++ b/services/audioflinger/Effects.cpp
@@ -1225,10 +1225,9 @@
         mEnabled = false;
     } else {
         if (thread != 0) {
-            if (thread->type() == ThreadBase::OFFLOAD) {
-                PlaybackThread *t = (PlaybackThread *)thread.get();
-                Mutex::Autolock _l(t->mLock);
-                t->broadcast_l();
+            if (thread->type() == ThreadBase::OFFLOAD || thread->type() == ThreadBase::MMAP) {
+                Mutex::Autolock _l(thread->mLock);
+                thread->broadcast_l();
             }
             if (!effect->isOffloadable()) {
                 if (thread->type() == ThreadBase::OFFLOAD) {
@@ -1270,10 +1269,9 @@
     sp<ThreadBase> thread = effect->thread().promote();
     if (thread != 0) {
         thread->checkSuspendOnEffectEnabled(effect, false, effect->sessionId());
-        if (thread->type() == ThreadBase::OFFLOAD) {
-            PlaybackThread *t = (PlaybackThread *)thread.get();
-            Mutex::Autolock _l(t->mLock);
-            t->broadcast_l();
+        if (thread->type() == ThreadBase::OFFLOAD || thread->type() == ThreadBase::MMAP) {
+            Mutex::Autolock _l(thread->mLock);
+            thread->broadcast_l();
         }
     }
 
@@ -1581,6 +1579,9 @@
 // Must be called with EffectChain::mLock locked
 void AudioFlinger::EffectChain::clearInputBuffer_l(const sp<ThreadBase>& thread)
 {
+    if (mInBuffer == NULL) {
+        return;
+    }
     // TODO: This will change in the future, depending on multichannel
     // and sample format changes for effects.
     // Currently effects processing is only available for stereo, AUDIO_FORMAT_PCM_16_BIT
diff --git a/services/audioflinger/MmapTracks.h b/services/audioflinger/MmapTracks.h
new file mode 100644
index 0000000..e4fe8ac
--- /dev/null
+++ b/services/audioflinger/MmapTracks.h
@@ -0,0 +1,60 @@
+/*
+**
+** Copyright 2017, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+#ifndef INCLUDING_FROM_AUDIOFLINGER_H
+    #error This header file should only be included from AudioFlinger.h
+#endif
+
+// playback track
+class MmapTrack : public TrackBase {
+public:
+                MmapTrack(ThreadBase *thread,
+                            uint32_t sampleRate,
+                            audio_format_t format,
+                            audio_channel_mask_t channelMask,
+                            audio_session_t sessionId,
+                            uid_t uid,
+                            audio_port_handle_t portId = AUDIO_PORT_HANDLE_NONE);
+    virtual             ~MmapTrack();
+
+                        // TrackBase virtual
+    virtual status_t    initCheck() const;
+    virtual status_t    start(AudioSystem::sync_event_t event,
+                              audio_session_t triggerSession);
+    virtual void        stop();
+    virtual bool        isFastTrack() const { return false; }
+
+     static void        appendDumpHeader(String8& result);
+            void        dump(char* buffer, size_t size);
+
+protected:
+    friend class MmapThread;
+
+                MmapTrack(const MmapTrack&);
+                MmapTrack& operator = (const MmapTrack&);
+
+    // AudioBufferProvider interface
+    virtual status_t getNextBuffer(AudioBufferProvider::Buffer* buffer);
+    // releaseBuffer() not overridden
+
+    // ExtendedAudioBufferProvider interface
+    virtual size_t framesReady() const;
+    virtual int64_t framesReleased() const;
+    virtual void onTimestamp(const ExtendedTimestamp &timestamp);
+
+};  // end of Track
+
diff --git a/services/audioflinger/PatchPanel.cpp b/services/audioflinger/PatchPanel.cpp
index 591a49e..d7c0728 100644
--- a/services/audioflinger/PatchPanel.cpp
+++ b/services/audioflinger/PatchPanel.cpp
@@ -274,13 +274,14 @@
                     audio_devices_t device = patch->sinks[0].ext.device.type;
                     String8 address = String8(patch->sinks[0].ext.device.address);
                     audio_io_handle_t output = AUDIO_IO_HANDLE_NONE;
-                    newPatch->mPlaybackThread = audioflinger->openOutput_l(
-                                                             patch->sinks[0].ext.device.hw_module,
-                                                             &output,
-                                                             &config,
-                                                             device,
-                                                             address,
-                                                             AUDIO_OUTPUT_FLAG_NONE);
+                    sp<ThreadBase> thread = audioflinger->openOutput_l(
+                                                            patch->sinks[0].ext.device.hw_module,
+                                                            &output,
+                                                            &config,
+                                                            device,
+                                                            address,
+                                                            AUDIO_OUTPUT_FLAG_NONE);
+                    newPatch->mPlaybackThread = (PlaybackThread *)thread.get();
                     ALOGV("audioflinger->openOutput_l() returned %p",
                                           newPatch->mPlaybackThread.get());
                     if (newPatch->mPlaybackThread == 0) {
@@ -310,13 +311,14 @@
                     config.format = newPatch->mPlaybackThread->format();
                 }
                 audio_io_handle_t input = AUDIO_IO_HANDLE_NONE;
-                newPatch->mRecordThread = audioflinger->openInput_l(srcModule,
+                sp<ThreadBase> thread = audioflinger->openInput_l(srcModule,
                                                                     &input,
                                                                     &config,
                                                                     device,
                                                                     address,
                                                                     AUDIO_SOURCE_MIC,
                                                                     AUDIO_INPUT_FLAG_NONE);
+                newPatch->mRecordThread = (RecordThread *)thread.get();
                 ALOGV("audioflinger->openInput_l() returned %p inChannelMask %08x",
                       newPatch->mRecordThread.get(), config.channel_mask);
                 if (newPatch->mRecordThread == 0) {
@@ -332,10 +334,13 @@
                     sp<ThreadBase> thread = audioflinger->checkRecordThread_l(
                                                               patch->sinks[0].ext.mix.handle);
                     if (thread == 0) {
-                        ALOGW("createAudioPatch() bad capture I/O handle %d",
-                                                              patch->sinks[0].ext.mix.handle);
-                        status = BAD_VALUE;
-                        goto exit;
+                        thread = audioflinger->checkMmapThread_l(patch->sinks[0].ext.mix.handle);
+                        if (thread == 0) {
+                            ALOGW("createAudioPatch() bad capture I/O handle %d",
+                                                                  patch->sinks[0].ext.mix.handle);
+                            status = BAD_VALUE;
+                            goto exit;
+                        }
                     }
                     status = thread->sendCreateAudioPatchConfigEvent(patch, &halHandle);
                 } else {
@@ -376,10 +381,13 @@
             sp<ThreadBase> thread =
                             audioflinger->checkPlaybackThread_l(patch->sources[0].ext.mix.handle);
             if (thread == 0) {
-                ALOGW("createAudioPatch() bad playback I/O handle %d",
-                          patch->sources[0].ext.mix.handle);
-                status = BAD_VALUE;
-                goto exit;
+                thread = audioflinger->checkMmapThread_l(patch->sources[0].ext.mix.handle);
+                if (thread == 0) {
+                    ALOGW("createAudioPatch() bad playback I/O handle %d",
+                              patch->sources[0].ext.mix.handle);
+                    status = BAD_VALUE;
+                    goto exit;
+                }
             }
             if (thread == audioflinger->primaryPlaybackThread_l()) {
                 AudioParameter param = AudioParameter();
@@ -606,10 +614,13 @@
                 sp<ThreadBase> thread = audioflinger->checkRecordThread_l(
                                                                 patch->sinks[0].ext.mix.handle);
                 if (thread == 0) {
-                    ALOGW("releaseAudioPatch() bad capture I/O handle %d",
-                                                              patch->sinks[0].ext.mix.handle);
-                    status = BAD_VALUE;
-                    break;
+                    thread = audioflinger->checkMmapThread_l(patch->sinks[0].ext.mix.handle);
+                    if (thread == 0) {
+                        ALOGW("releaseAudioPatch() bad capture I/O handle %d",
+                                                                  patch->sinks[0].ext.mix.handle);
+                        status = BAD_VALUE;
+                        break;
+                    }
                 }
                 status = thread->sendReleaseAudioPatchConfigEvent(removedPatch->mHalHandle);
             } else {
@@ -629,10 +640,13 @@
             sp<ThreadBase> thread =
                             audioflinger->checkPlaybackThread_l(patch->sources[0].ext.mix.handle);
             if (thread == 0) {
-                ALOGW("releaseAudioPatch() bad playback I/O handle %d",
-                                                              patch->sources[0].ext.mix.handle);
-                status = BAD_VALUE;
-                break;
+                thread = audioflinger->checkMmapThread_l(patch->sources[0].ext.mix.handle);
+                if (thread == 0) {
+                    ALOGW("releaseAudioPatch() bad playback I/O handle %d",
+                                                                  patch->sources[0].ext.mix.handle);
+                    status = BAD_VALUE;
+                    break;
+                }
             }
             status = thread->sendReleaseAudioPatchConfigEvent(removedPatch->mHalHandle);
         } break;
diff --git a/services/audioflinger/PlaybackTracks.h b/services/audioflinger/PlaybackTracks.h
index 27e4627..f33c710 100644
--- a/services/audioflinger/PlaybackTracks.h
+++ b/services/audioflinger/PlaybackTracks.h
@@ -76,6 +76,13 @@
 
     virtual bool        isFastTrack() const { return (mFlags & AUDIO_OUTPUT_FLAG_FAST) != 0; }
 
+// implement volume handling.
+   VolumeShaper::Status applyVolumeShaper(
+                                const sp<VolumeShaper::Configuration>& configuration,
+                                const sp<VolumeShaper::Operation>& operation);
+sp<VolumeShaper::State> getVolumeShaperState(int id);
+    sp<VolumeHandler>   getVolumeHandler() { return mVolumeHandler; }
+
 protected:
     // for numerous
     friend class PlaybackThread;
@@ -118,10 +125,9 @@
 
 public:
     void triggerEvents(AudioSystem::sync_event_t type);
-    void invalidate();
+    virtual void invalidate();
     void disable();
 
-    bool isInvalid() const { return mIsInvalid; }
     int fastIndex() const { return mFastIndex; }
 
 protected:
@@ -153,6 +159,8 @@
 
     ExtendedTimestamp  mSinkTimestamp;
 
+    sp<VolumeHandler>  mVolumeHandler; // handles multiple VolumeShaper configs and operations
+
 private:
     // The following fields are only for fast tracks, and should be in a subclass
     int                 mFastIndex; // index within FastMixerState::mFastTracks[];
@@ -166,7 +174,6 @@
     volatile float      mCachedVolume;  // combined master volume and stream type volume;
                                         // 'volatile' means accessed without lock or
                                         // barrier, but is read/written atomically
-    bool                mIsInvalid; // non-resettable latch, set by invalidate()
     sp<AudioTrackServerProxy>  mAudioTrackServerProxy;
     bool                mResumeToStopping; // track was paused in stopping state.
     bool                mFlushHwPending; // track requests for thread flush
diff --git a/services/audioflinger/RecordTracks.h b/services/audioflinger/RecordTracks.h
index 848e531..72ebc93 100644
--- a/services/audioflinger/RecordTracks.h
+++ b/services/audioflinger/RecordTracks.h
@@ -42,7 +42,7 @@
 
             void        destroy();
 
-            void        invalidate();
+    virtual void        invalidate();
             // clear the buffer overflow flag
             void        clearOverflow() { mOverflow = false; }
             // set the buffer overflow flag and return previous value
diff --git a/services/audioflinger/Threads.cpp b/services/audioflinger/Threads.cpp
index b1ede30..795e009 100644
--- a/services/audioflinger/Threads.cpp
+++ b/services/audioflinger/Threads.cpp
@@ -74,6 +74,9 @@
 
 #include "AutoPark.h"
 
+#include <pthread.h>
+#include "TypedLogger.h"
+
 // ----------------------------------------------------------------------------
 
 // Note: the following macro is used for extremely verbose logging message.  In
@@ -507,7 +510,8 @@
         mAudioSource(AUDIO_SOURCE_DEFAULT), mId(id),
         // mName will be set by concrete (non-virtual) subclass
         mDeathRecipient(new PMDeathRecipient(this)),
-        mSystemReady(systemReady)
+        mSystemReady(systemReady),
+        mSignalPending(false)
 {
     memset(&mPatch, 0, sizeof(struct audio_patch));
 }
@@ -610,16 +614,17 @@
     sendConfigEvent_l(configEvent);
 }
 
-void AudioFlinger::ThreadBase::sendPrioConfigEvent(pid_t pid, pid_t tid, int32_t prio)
+void AudioFlinger::ThreadBase::sendPrioConfigEvent(pid_t pid, pid_t tid, int32_t prio, bool forApp)
 {
     Mutex::Autolock _l(mLock);
-    sendPrioConfigEvent_l(pid, tid, prio);
+    sendPrioConfigEvent_l(pid, tid, prio, forApp);
 }
 
 // sendPrioConfigEvent_l() must be called with ThreadBase::mLock held
-void AudioFlinger::ThreadBase::sendPrioConfigEvent_l(pid_t pid, pid_t tid, int32_t prio)
+void AudioFlinger::ThreadBase::sendPrioConfigEvent_l(
+        pid_t pid, pid_t tid, int32_t prio, bool forApp)
 {
-    sp<ConfigEvent> configEvent = (ConfigEvent *)new PrioConfigEvent(pid, tid, prio);
+    sp<ConfigEvent> configEvent = (ConfigEvent *)new PrioConfigEvent(pid, tid, prio, forApp);
     sendConfigEvent_l(configEvent);
 }
 
@@ -679,7 +684,7 @@
         case CFG_EVENT_PRIO: {
             PrioConfigEventData *data = (PrioConfigEventData *)event->mData.get();
             // FIXME Need to understand why this has to be done asynchronously
-            int err = requestPriority(data->mPid, data->mTid, data->mPrio,
+            int err = requestPriority(data->mPid, data->mTid, data->mPrio, data->mForApp,
                     true /*asynchronous*/);
             if (err != 0) {
                 ALOGW("Policy SCHED_FIFO priority %d is unavailable for pid %d tid %d; error %d",
@@ -867,6 +872,8 @@
         return String16("AudioIn");
     case OFFLOAD:
         return String16("AudioOffload");
+    case MMAP:
+        return String16("Mmap");
     default:
         ALOG_ASSERT(false);
         return String16("AudioUnknown");
@@ -1591,6 +1598,16 @@
     }
 }
 
+void AudioFlinger::ThreadBase::broadcast_l()
+{
+    // Thread could be blocked waiting for async
+    // so signal it to handle state changes immediately
+    // If threadLoop is currently unlocked a signal of mWaitWorkCV will
+    // be lost so we also flag to prevent it blocking on mWaitWorkCV
+    mSignalPending = true;
+    mWaitWorkCV.broadcast();
+}
+
 // ----------------------------------------------------------------------------
 //      Playback
 // ----------------------------------------------------------------------------
@@ -1627,7 +1644,6 @@
         mUseAsyncWrite(false),
         mWriteAckSequence(0),
         mDrainSequence(0),
-        mSignalPending(false),
         mScreenState(AudioFlinger::mScreenState),
         // index 0 is reserved for normal mixer's submix
         mFastTrackAvailMask(((1 << FastMixerState::sMaxFastTracks) - 1) & ~1),
@@ -2014,7 +2030,7 @@
             pid_t callingPid = IPCThreadState::self()->getCallingPid();
             // we don't have CAP_SYS_NICE, nor do we want to have it as it's too powerful,
             // so ask activity manager to do this on our behalf
-            sendPrioConfigEvent_l(callingPid, tid, kPriorityAudioApp);
+            sendPrioConfigEvent_l(callingPid, tid, kPriorityAudioApp, true /*isForApp*/);
         }
     }
 
@@ -2058,6 +2074,9 @@
 
 void AudioFlinger::PlaybackThread::setMasterMute(bool muted)
 {
+    if (isDuplicating()) {
+        return;
+    }
     Mutex::Autolock _l(mLock);
     // Don't apply master mute in SW if our HAL can do it for us.
     if (mOutput && mOutput->audioHwDev &&
@@ -2199,16 +2218,6 @@
     }
 }
 
-void AudioFlinger::PlaybackThread::broadcast_l()
-{
-    // Thread could be blocked waiting for async
-    // so signal it to handle state changes immediately
-    // If threadLoop is currently unlocked a signal of mWaitWorkCV will
-    // be lost so we also flag to prevent it blocking on mWaitWorkCV
-    mSignalPending = true;
-    mWaitWorkCV.broadcast();
-}
-
 String8 AudioFlinger::PlaybackThread::getParameters(const String8& keys)
 {
     Mutex::Autolock _l(mLock);
@@ -2906,6 +2915,8 @@
 
 bool AudioFlinger::PlaybackThread::threadLoop()
 {
+    logWriterTLS = mNBLogWriter.get();
+
     Vector< sp<Track> > tracksToRemove;
 
     mStandbyTimeNs = systemTime();
@@ -2937,7 +2948,9 @@
     const char *logString = NULL;
 
     checkSilentMode_l();
-
+#if 0
+    int z = 0; // used in logFormat example
+#endif
     while (!exitPending())
     {
         cpuStats.sample(myName);
@@ -3026,7 +3039,17 @@
                     }
                 }
             }
-
+#if 0
+            // logFormat example
+            if (!(z % 100)) {
+                timespec ts;
+                clock_gettime(CLOCK_MONOTONIC, &ts);
+                LOGF("This is an integer %d, this is a float %f, this is my "
+                    "pid %p %% %s %t", 42, 3.14, "and this is a timestamp", ts);
+                LOGF("A deceptive null-terminated string %\0");
+            }
+            ++z;
+#endif
             saveOutputTracks();
             if (mSignalPending) {
                 // A signal was raised while we were unlocked
@@ -3656,7 +3679,7 @@
         // start the fast mixer
         mFastMixer->run("FastMixer", PRIORITY_URGENT_AUDIO);
         pid_t tid = mFastMixer->getTid();
-        sendPrioConfigEvent(getpid_cached, tid, kPriorityFastMixer);
+        sendPrioConfigEvent(getpid_cached, tid, kPriorityFastMixer, false);
         stream()->setHalThreadPriority(kPriorityFastMixer);
 
 #ifdef AUDIO_WATCHDOG
@@ -4097,7 +4120,11 @@
                 }
                 // cache the combined master volume and stream type volume for fast mixer; this
                 // lacks any synchronization or barrier so VolumeProvider may read a stale value
-                track->mCachedVolume = masterVolume * mStreamTypes[track->streamType()].volume;
+                const float vh = track->getVolumeHandler()->getVolume(
+                        track->mAudioTrackServerProxy->framesReleased());
+                track->mCachedVolume = masterVolume
+                        * mStreamTypes[track->streamType()].volume
+                        * vh;
                 ++fastTracks;
             } else {
                 // was it previously active?
@@ -4239,9 +4266,11 @@
                     ALOGV("Track right volume out of range: %.3g", vrf);
                     vrf = GAIN_FLOAT_UNITY;
                 }
-                // now apply the master volume and stream type volume
-                vlf *= v;
-                vrf *= v;
+                const float vh = track->getVolumeHandler()->getVolume(
+                        track->mAudioTrackServerProxy->framesReleased());
+                // now apply the master volume and stream type volume and shaper volume
+                vlf *= v * vh;
+                vrf *= v * vh;
                 // assuming master volume and stream type volume each go up to 1.0,
                 // then derive vl and vr as U8.24 versions for the effect chain
                 const float scaleto8_24 = MAX_GAIN_INT * MAX_GAIN_INT;
@@ -4726,6 +4755,15 @@
         float typeVolume = mStreamTypes[track->streamType()].volume;
         float v = mMasterVolume * typeVolume;
         sp<AudioTrackServerProxy> proxy = track->mAudioTrackServerProxy;
+
+        if (audio_is_linear_pcm(mFormat) && !usesHwAvSync()) {
+            const float vh = track->getVolumeHandler()->getVolume(
+                    track->mAudioTrackServerProxy->framesReleased());
+            v *= vh;
+        } else {
+            // TODO: implement volume scaling in HW
+        }
+
         gain_minifloat_packed_t vlr = proxy->getVolumeLR();
         left = float_from_gain(gain_minifloat_unpack_left(vlr));
         if (left > GAIN_FLOAT_UNITY) {
@@ -5793,6 +5831,7 @@
     MixerThread::cacheParameters_l();
 }
 
+
 // ----------------------------------------------------------------------------
 //      Record
 // ----------------------------------------------------------------------------
@@ -5919,7 +5958,7 @@
         // start the fast capture
         mFastCapture->run("FastCapture", ANDROID_PRIORITY_URGENT_AUDIO);
         pid_t tid = mFastCapture->getTid();
-        sendPrioConfigEvent(getpid_cached, tid, kPriorityFastCapture);
+        sendPrioConfigEvent(getpid_cached, tid, kPriorityFastCapture, false);
         stream()->setHalThreadPriority(kPriorityFastCapture);
 #ifdef AUDIO_WATCHDOG
         // FIXME
@@ -5959,6 +5998,18 @@
     run(mThreadName, PRIORITY_URGENT_AUDIO);
 }
 
+void AudioFlinger::RecordThread::preExit()
+{
+    ALOGV("  preExit()");
+    Mutex::Autolock _l(mLock);
+    for (size_t i = 0; i < mTracks.size(); i++) {
+        sp<RecordTrack> track = mTracks[i];
+        track->invalidate();
+    }
+    mActiveTracks.clear();
+    mStartStopCond.broadcast();
+}
+
 bool AudioFlinger::RecordThread::threadLoop()
 {
     nsecs_t lastWarning = 0;
@@ -6579,7 +6630,7 @@
             pid_t callingPid = IPCThreadState::self()->getCallingPid();
             // we don't have CAP_SYS_NICE, nor do we want to have it as it's too powerful,
             // so ask activity manager to do this on our behalf
-            sendPrioConfigEvent_l(callingPid, tid, kPriorityAudioApp);
+            sendPrioConfigEvent_l(callingPid, tid, kPriorityAudioApp, true);
         }
     }
 
@@ -7340,4 +7391,889 @@
     config->ext.mix.usecase.source = mAudioSource;
 }
 
+// ----------------------------------------------------------------------------
+//      Mmap
+// ----------------------------------------------------------------------------
+
+AudioFlinger::MmapThreadHandle::MmapThreadHandle(const sp<MmapThread>& thread)
+    : mThread(thread)
+{
+}
+
+AudioFlinger::MmapThreadHandle::~MmapThreadHandle()
+{
+    MmapThread *thread = mThread.get();
+    // clear our strong reference before disconnecting the thread: the last strong reference
+    // will be removed when closeInput/closeOutput is executed upono call from audio policy manager
+    // and the thread removed from mMMapThreads list causing the thread destruction.
+    mThread.clear();
+    if (thread != nullptr) {
+        thread->disconnect();
+    }
+}
+
+status_t AudioFlinger::MmapThreadHandle::createMmapBuffer(int32_t minSizeFrames,
+                                  struct audio_mmap_buffer_info *info)
+{
+    if (mThread == 0) {
+        return NO_INIT;
+    }
+    return mThread->createMmapBuffer(minSizeFrames, info);
+}
+
+status_t AudioFlinger::MmapThreadHandle::getMmapPosition(struct audio_mmap_position *position)
+{
+    if (mThread == 0) {
+        return NO_INIT;
+    }
+    return mThread->getMmapPosition(position);
+}
+
+status_t AudioFlinger::MmapThreadHandle::start(const MmapStreamInterface::Client& client, audio_port_handle_t *handle)
+
+{
+    if (mThread == 0) {
+        return NO_INIT;
+    }
+    return mThread->start(client, handle);
+}
+
+status_t AudioFlinger::MmapThreadHandle::stop(audio_port_handle_t handle)
+{
+    if (mThread == 0) {
+        return NO_INIT;
+    }
+    return mThread->stop(handle);
+}
+
+
+AudioFlinger::MmapThread::MmapThread(
+        const sp<AudioFlinger>& audioFlinger, audio_io_handle_t id,
+        AudioHwDevice *hwDev, sp<StreamHalInterface> stream,
+        audio_devices_t outDevice, audio_devices_t inDevice, bool systemReady)
+    : ThreadBase(audioFlinger, id, outDevice, inDevice, MMAP, systemReady),
+      mHalStream(stream), mHalDevice(hwDev->hwDevice()), mAudioHwDev(hwDev)
+{
+    readHalParameters_l();
+}
+
+AudioFlinger::MmapThread::~MmapThread()
+{
+}
+
+void AudioFlinger::MmapThread::onFirstRef()
+{
+    run(mThreadName, ANDROID_PRIORITY_URGENT_AUDIO);
+}
+
+void AudioFlinger::MmapThread::disconnect()
+{
+    for (const sp<MmapTrack> &t : mActiveTracks) {
+        stop(t->portId());
+    }
+    // this will cause the destruction of this thread.
+    if (isOutput()) {
+        AudioSystem::releaseOutput(mId, streamType(), mSessionId);
+    } else {
+        AudioSystem::releaseInput(mId, mSessionId);
+    }
+}
+
+
+void AudioFlinger::MmapThread::configure(const audio_attributes_t *attr,
+                                                audio_stream_type_t streamType __unused,
+                                                audio_session_t sessionId,
+                                                const sp<MmapStreamCallback>& callback,
+                                                audio_port_handle_t portId)
+{
+    mAttr = *attr;
+    mSessionId = sessionId;
+    mCallback = callback;
+    mPortId = portId;
+}
+
+status_t AudioFlinger::MmapThread::createMmapBuffer(int32_t minSizeFrames,
+                                  struct audio_mmap_buffer_info *info)
+{
+    if (mHalStream == 0) {
+        return NO_INIT;
+    }
+    return mHalStream->createMmapBuffer(minSizeFrames, info);
+}
+
+status_t AudioFlinger::MmapThread::getMmapPosition(struct audio_mmap_position *position)
+{
+    if (mHalStream == 0) {
+        return NO_INIT;
+    }
+    return mHalStream->getMmapPosition(position);
+}
+
+status_t AudioFlinger::MmapThread::start(const MmapStreamInterface::Client& client,
+                                         audio_port_handle_t *handle)
+{
+    ALOGV("%s clientUid %d", __FUNCTION__, client.clientUid);
+    if (mHalStream == 0) {
+        return NO_INIT;
+    }
+
+    status_t ret;
+    audio_session_t sessionId;
+    audio_port_handle_t portId;
+
+    if (mActiveTracks.size() == 0) {
+        // for the first track, reuse portId and session allocated when the stream was opened
+        mHalStream->start();
+        portId = mPortId;
+        sessionId = mSessionId;
+    } else {
+        // for other tracks than first one, get a new port ID from APM.
+        sessionId = (audio_session_t)mAudioFlinger->newAudioUniqueId(AUDIO_UNIQUE_ID_USE_SESSION);
+        audio_io_handle_t io;
+        if (isOutput()) {
+            audio_config_t config = AUDIO_CONFIG_INITIALIZER;
+            config.sample_rate = mSampleRate;
+            config.channel_mask = mChannelMask;
+            config.format = mFormat;
+            audio_stream_type_t stream = streamType();
+            audio_output_flags_t flags =
+                    (audio_output_flags_t)(AUDIO_OUTPUT_FLAG_MMAP_NOIRQ | AUDIO_OUTPUT_FLAG_DIRECT);
+            ret = AudioSystem::getOutputForAttr(&mAttr, &io,
+                                                sessionId,
+                                                &stream,
+                                                client.clientUid,
+                                                &config,
+                                                flags,
+                                                AUDIO_PORT_HANDLE_NONE,
+                                                &portId);
+        } else {
+            audio_config_base_t config;
+            config.sample_rate = mSampleRate;
+            config.channel_mask = mChannelMask;
+            config.format = mFormat;
+            ret = AudioSystem::getInputForAttr(&mAttr, &io,
+                                                  sessionId,
+                                                  client.clientPid,
+                                                  client.clientUid,
+                                                  &config,
+                                                  AUDIO_INPUT_FLAG_MMAP_NOIRQ,
+                                                  AUDIO_PORT_HANDLE_NONE,
+                                                  &portId);
+        }
+        // APM should not chose a different input or output stream for the same set of attributes
+        // and audo configuration
+        if (ret != NO_ERROR || io != mId) {
+            ALOGE("%s: error getting output or input from APM (error %d, io %d expected io %d)",
+                  __FUNCTION__, ret, io, mId);
+            return BAD_VALUE;
+        }
+    }
+
+    if (isOutput()) {
+        ret = AudioSystem::startOutput(mId, streamType(), sessionId);
+    } else {
+        ret = AudioSystem::startInput(mId, sessionId);
+    }
+
+    // abort if start is rejected by audio policy manager
+    if (ret != NO_ERROR) {
+        if (mActiveTracks.size() != 0) {
+            if (isOutput()) {
+                AudioSystem::releaseOutput(mId, streamType(), sessionId);
+            } else {
+                AudioSystem::releaseInput(mId, sessionId);
+            }
+        }
+        return PERMISSION_DENIED;
+    }
+
+    sp<MmapTrack> track = new MmapTrack(this, mSampleRate, mFormat, mChannelMask, sessionId,
+                                        client.clientUid, portId);
+
+    mActiveTracks.add(track);
+    sp<EffectChain> chain = getEffectChain_l(sessionId);
+    if (chain != 0) {
+        chain->setStrategy(AudioSystem::getStrategyForStream(streamType()));
+        chain->incTrackCnt();
+        chain->incActiveTrackCnt();
+    }
+
+    *handle = portId;
+
+    broadcast_l();
+
+    ALOGV("%s DONE handle %d", __FUNCTION__, portId);
+
+    return NO_ERROR;
+}
+
+status_t AudioFlinger::MmapThread::stop(audio_port_handle_t handle)
+{
+
+    ALOGV("%s handle %d", __FUNCTION__, handle);
+
+    if (mHalStream == 0) {
+        return NO_INIT;
+    }
+
+    sp<MmapTrack> track;
+    for (const sp<MmapTrack> &t : mActiveTracks) {
+        if (handle == t->portId()) {
+            track = t;
+            break;
+        }
+    }
+    if (track == 0) {
+        return BAD_VALUE;
+    }
+
+    mActiveTracks.remove(track);
+
+    if (isOutput()) {
+        AudioSystem::stopOutput(mId, streamType(), track->sessionId());
+        if (mActiveTracks.size() != 0) {
+            AudioSystem::releaseOutput(mId, streamType(), track->sessionId());
+        }
+    } else {
+        AudioSystem::stopInput(mId, track->sessionId());
+        if (mActiveTracks.size() != 0) {
+            AudioSystem::releaseInput(mId, track->sessionId());
+        }
+    }
+
+    sp<EffectChain> chain = getEffectChain_l(track->sessionId());
+    if (chain != 0) {
+        chain->decActiveTrackCnt();
+        chain->decTrackCnt();
+    }
+
+    broadcast_l();
+
+    if (mActiveTracks.size() == 0) {
+        mHalStream->stop();
+    }
+    return NO_ERROR;
+}
+
+
+void AudioFlinger::MmapThread::readHalParameters_l()
+{
+    status_t result = mHalStream->getAudioProperties(&mSampleRate, &mChannelMask, &mHALFormat);
+    LOG_ALWAYS_FATAL_IF(result != OK, "Error retrieving audio properties from HAL: %d", result);
+    mFormat = mHALFormat;
+    LOG_ALWAYS_FATAL_IF(!audio_is_linear_pcm(mFormat), "HAL format %#x is not linear pcm", mFormat);
+    result = mHalStream->getFrameSize(&mFrameSize);
+    LOG_ALWAYS_FATAL_IF(result != OK, "Error retrieving frame size from HAL: %d", result);
+    result = mHalStream->getBufferSize(&mBufferSize);
+    LOG_ALWAYS_FATAL_IF(result != OK, "Error retrieving buffer size from HAL: %d", result);
+    mFrameCount = mBufferSize / mFrameSize;
+}
+
+bool AudioFlinger::MmapThread::threadLoop()
+{
+    acquireWakeLock();
+
+    checkSilentMode_l();
+
+    const String8 myName(String8::format("thread %p type %d TID %d", this, mType, gettid()));
+
+    while (!exitPending())
+    {
+        Mutex::Autolock _l(mLock);
+        Vector< sp<EffectChain> > effectChains;
+
+        if (mSignalPending) {
+            // A signal was raised while we were unlocked
+            mSignalPending = false;
+        } else {
+            if (mConfigEvents.isEmpty()) {
+                // we're about to wait, flush the binder command buffer
+                IPCThreadState::self()->flushCommands();
+
+                if (exitPending()) {
+                    break;
+                }
+
+                bool wakelockReleased = false;
+                if (mActiveTracks.size() == 0) {
+                    releaseWakeLock_l();
+                    wakelockReleased = true;
+                }
+                // wait until we have something to do...
+                ALOGV("%s going to sleep", myName.string());
+                mWaitWorkCV.wait(mLock);
+                ALOGV("%s waking up", myName.string());
+                if (wakelockReleased) {
+                    acquireWakeLock_l();
+                }
+
+                checkSilentMode_l();
+
+                continue;
+            }
+        }
+
+        processConfigEvents_l();
+
+        processVolume_l();
+
+        checkInvalidTracks_l();
+
+        mActiveTracks.updatePowerState(this);
+
+        lockEffectChains_l(effectChains);
+        for (size_t i = 0; i < effectChains.size(); i ++) {
+            effectChains[i]->process_l();
+        }
+        // enable changes in effect chain
+        unlockEffectChains(effectChains);
+        // Effect chains will be actually deleted here if they were removed from
+        // mEffectChains list during mixing or effects processing
+    }
+
+    threadLoop_exit();
+
+    if (!mStandby) {
+        threadLoop_standby();
+        mStandby = true;
+    }
+
+    releaseWakeLock();
+
+    ALOGV("Thread %p type %d exiting", this, mType);
+    return false;
+}
+
+// checkForNewParameter_l() must be called with ThreadBase::mLock held
+bool AudioFlinger::MmapThread::checkForNewParameter_l(const String8& keyValuePair,
+                                                              status_t& status)
+{
+    AudioParameter param = AudioParameter(keyValuePair);
+    int value;
+    if (param.getInt(String8(AudioParameter::keyRouting), value) == NO_ERROR) {
+        // forward device change to effects that have requested to be
+        // aware of attached audio device.
+        if (value != AUDIO_DEVICE_NONE) {
+            mOutDevice = value;
+            for (size_t i = 0; i < mEffectChains.size(); i++) {
+                mEffectChains[i]->setDevice_l(mOutDevice);
+            }
+        }
+    }
+    status = mHalStream->setParameters(keyValuePair);
+
+    return false;
+}
+
+String8 AudioFlinger::MmapThread::getParameters(const String8& keys)
+{
+    Mutex::Autolock _l(mLock);
+    String8 out_s8;
+    if (initCheck() == NO_ERROR && mHalStream->getParameters(keys, &out_s8) == OK) {
+        return out_s8;
+    }
+    return String8();
+}
+
+void AudioFlinger::MmapThread::ioConfigChanged(audio_io_config_event event, pid_t pid) {
+    sp<AudioIoDescriptor> desc = new AudioIoDescriptor();
+
+    desc->mIoHandle = mId;
+
+    switch (event) {
+    case AUDIO_INPUT_OPENED:
+    case AUDIO_INPUT_CONFIG_CHANGED:
+    case AUDIO_OUTPUT_OPENED:
+    case AUDIO_OUTPUT_CONFIG_CHANGED:
+        desc->mPatch = mPatch;
+        desc->mChannelMask = mChannelMask;
+        desc->mSamplingRate = mSampleRate;
+        desc->mFormat = mFormat;
+        desc->mFrameCount = mFrameCount;
+        desc->mFrameCountHAL = mFrameCount;
+        desc->mLatency = 0;
+        break;
+
+    case AUDIO_INPUT_CLOSED:
+    case AUDIO_OUTPUT_CLOSED:
+    default:
+        break;
+    }
+    mAudioFlinger->ioConfigChanged(event, desc, pid);
+}
+
+status_t AudioFlinger::MmapThread::createAudioPatch_l(const struct audio_patch *patch,
+                                                          audio_patch_handle_t *handle)
+{
+    status_t status = NO_ERROR;
+
+    // store new device and send to effects
+    audio_devices_t type = AUDIO_DEVICE_NONE;
+    audio_port_handle_t deviceId;
+    if (isOutput()) {
+        for (unsigned int i = 0; i < patch->num_sinks; i++) {
+            type |= patch->sinks[i].ext.device.type;
+        }
+        deviceId = patch->sinks[0].id;
+    } else {
+        type = patch->sources[0].ext.device.type;
+        deviceId = patch->sources[0].id;
+    }
+
+    for (size_t i = 0; i < mEffectChains.size(); i++) {
+        mEffectChains[i]->setDevice_l(type);
+    }
+
+    if (isOutput()) {
+        mOutDevice = type;
+    } else {
+        mInDevice = type;
+        // store new source and send to effects
+        if (mAudioSource != patch->sinks[0].ext.mix.usecase.source) {
+            mAudioSource = patch->sinks[0].ext.mix.usecase.source;
+            for (size_t i = 0; i < mEffectChains.size(); i++) {
+                mEffectChains[i]->setAudioSource_l(mAudioSource);
+            }
+        }
+    }
+
+    if (mAudioHwDev->supportsAudioPatches()) {
+        status = mHalDevice->createAudioPatch(patch->num_sources,
+                                            patch->sources,
+                                            patch->num_sinks,
+                                            patch->sinks,
+                                            handle);
+    } else {
+        char *address;
+        if (strcmp(patch->sinks[0].ext.device.address, "") != 0) {
+            //FIXME: we only support address on first sink with HAL version < 3.0
+            address = audio_device_address_to_parameter(
+                                                        patch->sinks[0].ext.device.type,
+                                                        patch->sinks[0].ext.device.address);
+        } else {
+            address = (char *)calloc(1, 1);
+        }
+        AudioParameter param = AudioParameter(String8(address));
+        free(address);
+        param.addInt(String8(AudioParameter::keyRouting), (int)type);
+        if (!isOutput()) {
+            param.addInt(String8(AudioParameter::keyInputSource),
+                                         (int)patch->sinks[0].ext.mix.usecase.source);
+        }
+        status = mHalStream->setParameters(param.toString());
+        *handle = AUDIO_PATCH_HANDLE_NONE;
+    }
+
+    if (isOutput() && mPrevOutDevice != mOutDevice) {
+        mPrevOutDevice = type;
+        sendIoConfigEvent_l(AUDIO_OUTPUT_CONFIG_CHANGED);
+        if (mCallback != 0) {
+            mCallback->onRoutingChanged(deviceId);
+        }
+    }
+    if (!isOutput() && mPrevInDevice != mInDevice) {
+        mPrevInDevice = type;
+        sendIoConfigEvent_l(AUDIO_INPUT_CONFIG_CHANGED);
+        if (mCallback != 0) {
+            mCallback->onRoutingChanged(deviceId);
+        }
+    }
+    return status;
+}
+
+status_t AudioFlinger::MmapThread::releaseAudioPatch_l(const audio_patch_handle_t handle)
+{
+    status_t status = NO_ERROR;
+
+    mInDevice = AUDIO_DEVICE_NONE;
+
+    bool supportsAudioPatches = mHalDevice->supportsAudioPatches(&supportsAudioPatches) == OK ?
+                                        supportsAudioPatches : false;
+
+    if (supportsAudioPatches) {
+        status = mHalDevice->releaseAudioPatch(handle);
+    } else {
+        AudioParameter param;
+        param.addInt(String8(AudioParameter::keyRouting), 0);
+        status = mHalStream->setParameters(param.toString());
+    }
+    return status;
+}
+
+void AudioFlinger::MmapThread::getAudioPortConfig(struct audio_port_config *config)
+{
+    ThreadBase::getAudioPortConfig(config);
+    if (isOutput()) {
+        config->role = AUDIO_PORT_ROLE_SOURCE;
+        config->ext.mix.hw_module = mAudioHwDev->handle();
+        config->ext.mix.usecase.stream = AUDIO_STREAM_DEFAULT;
+    } else {
+        config->role = AUDIO_PORT_ROLE_SINK;
+        config->ext.mix.hw_module = mAudioHwDev->handle();
+        config->ext.mix.usecase.source = mAudioSource;
+    }
+}
+
+status_t AudioFlinger::MmapThread::addEffectChain_l(const sp<EffectChain>& chain)
+{
+    audio_session_t session = chain->sessionId();
+
+    ALOGV("addEffectChain_l() %p on thread %p for session %d", chain.get(), this, session);
+    // Attach all tracks with same session ID to this chain.
+    // indicate all active tracks in the chain
+    for (const sp<MmapTrack> &track : mActiveTracks) {
+        if (session == track->sessionId()) {
+            chain->incTrackCnt();
+            chain->incActiveTrackCnt();
+        }
+    }
+
+    chain->setThread(this);
+    chain->setInBuffer(nullptr);
+    chain->setOutBuffer(nullptr);
+    chain->syncHalEffectsState();
+
+    mEffectChains.add(chain);
+    checkSuspendOnAddEffectChain_l(chain);
+    return NO_ERROR;
+}
+
+size_t AudioFlinger::MmapThread::removeEffectChain_l(const sp<EffectChain>& chain)
+{
+    audio_session_t session = chain->sessionId();
+
+    ALOGV("removeEffectChain_l() %p from thread %p for session %d", chain.get(), this, session);
+
+    for (size_t i = 0; i < mEffectChains.size(); i++) {
+        if (chain == mEffectChains[i]) {
+            mEffectChains.removeAt(i);
+            // detach all active tracks from the chain
+            // detach all tracks with same session ID from this chain
+            for (const sp<MmapTrack> &track : mActiveTracks) {
+                if (session == track->sessionId()) {
+                    chain->decActiveTrackCnt();
+                    chain->decTrackCnt();
+                }
+            }
+            break;
+        }
+    }
+    return mEffectChains.size();
+}
+
+// hasAudioSession_l() must be called with ThreadBase::mLock held
+uint32_t AudioFlinger::MmapThread::hasAudioSession_l(audio_session_t sessionId) const
+{
+    uint32_t result = 0;
+    if (getEffectChain_l(sessionId) != 0) {
+        result = EFFECT_SESSION;
+    }
+
+    for (size_t i = 0; i < mActiveTracks.size(); i++) {
+        sp<MmapTrack> track = mActiveTracks[i];
+        if (sessionId == track->sessionId()) {
+            result |= TRACK_SESSION;
+            if (track->isFastTrack()) {
+                result |= FAST_SESSION;
+            }
+            break;
+        }
+    }
+
+    return result;
+}
+
+void AudioFlinger::MmapThread::threadLoop_standby()
+{
+    mHalStream->standby();
+}
+
+void AudioFlinger::MmapThread::threadLoop_exit()
+{
+    if (mCallback != 0) {
+        mCallback->onTearDown();
+    }
+}
+
+status_t AudioFlinger::MmapThread::setSyncEvent(const sp<SyncEvent>& event __unused)
+{
+    return BAD_VALUE;
+}
+
+bool AudioFlinger::MmapThread::isValidSyncEvent(const sp<SyncEvent>& event __unused) const
+{
+    return false;
+}
+
+status_t AudioFlinger::MmapThread::checkEffectCompatibility_l(
+        const effect_descriptor_t *desc, audio_session_t sessionId)
+{
+    // No global effect sessions on mmap threads
+    if (sessionId == AUDIO_SESSION_OUTPUT_MIX || sessionId == AUDIO_SESSION_OUTPUT_STAGE) {
+        ALOGW("checkEffectCompatibility_l(): global effect %s on record thread %s",
+                desc->name, mThreadName);
+        return BAD_VALUE;
+    }
+
+    if (!isOutput() && ((desc->flags & EFFECT_FLAG_TYPE_MASK) != EFFECT_FLAG_TYPE_PRE_PROC)) {
+        ALOGW("checkEffectCompatibility_l(): non pre processing effect %s on capture mmap thread",
+                desc->name);
+        return BAD_VALUE;
+    }
+    if (isOutput() && ((desc->flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_PRE_PROC)) {
+        ALOGW("checkEffectCompatibility_l(): pre processing effect %s created on playback mmap thread",
+              desc->name);
+        return BAD_VALUE;
+    }
+
+    // Only allow effects without processing load or latency
+    if ((desc->flags & EFFECT_FLAG_NO_PROCESS_MASK) != EFFECT_FLAG_NO_PROCESS) {
+        return BAD_VALUE;
+    }
+
+    return NO_ERROR;
+
+}
+
+void AudioFlinger::MmapThread::checkInvalidTracks_l()
+{
+    for (const sp<MmapTrack> &track : mActiveTracks) {
+        if (track->isInvalid()) {
+            if (mCallback != 0) {
+                mCallback->onTearDown();
+            }
+            break;
+        }
+    }
+}
+
+void AudioFlinger::MmapThread::dump(int fd, const Vector<String16>& args)
+{
+    dumpInternals(fd, args);
+    dumpTracks(fd, args);
+    dumpEffectChains(fd, args);
+}
+
+void AudioFlinger::MmapThread::dumpInternals(int fd, const Vector<String16>& args)
+{
+    dprintf(fd, "\nMmap thread %p:\n", this);
+
+    dumpBase(fd, args);
+
+    dprintf(fd, "  Attributes: content type %d usage %d source %d\n",
+            mAttr.content_type, mAttr.usage, mAttr.source);
+    dprintf(fd, "  Session: %d port Id: %d\n", mSessionId, mPortId);
+    if (mActiveTracks.size() == 0) {
+        dprintf(fd, "  No active clients\n");
+    }
+}
+
+void AudioFlinger::MmapThread::dumpTracks(int fd, const Vector<String16>& args __unused)
+{
+    const size_t SIZE = 256;
+    char buffer[SIZE];
+    String8 result;
+
+    size_t numtracks = mActiveTracks.size();
+    dprintf(fd, "  %zu Tracks", numtracks);
+    if (numtracks) {
+        MmapTrack::appendDumpHeader(result);
+        for (size_t i = 0; i < numtracks ; ++i) {
+            sp<MmapTrack> track = mActiveTracks[i];
+            track->dump(buffer, SIZE);
+            result.append(buffer);
+        }
+    } else {
+        dprintf(fd, "\n");
+    }
+    write(fd, result.string(), result.size());
+}
+
+AudioFlinger::MmapPlaybackThread::MmapPlaybackThread(
+        const sp<AudioFlinger>& audioFlinger, audio_io_handle_t id,
+        AudioHwDevice *hwDev,  AudioStreamOut *output,
+        audio_devices_t outDevice, audio_devices_t inDevice, bool systemReady)
+    : MmapThread(audioFlinger, id, hwDev, output->stream, outDevice, inDevice, systemReady),
+      mStreamType(AUDIO_STREAM_MUSIC),
+      mStreamVolume(1.0), mStreamMute(false), mOutput(output)
+{
+    snprintf(mThreadName, kThreadNameLength, "AudioMmapOut_%X", id);
+    mChannelCount = audio_channel_count_from_out_mask(mChannelMask);
+    mMasterVolume = audioFlinger->masterVolume_l();
+    mMasterMute = audioFlinger->masterMute_l();
+    if (mAudioHwDev) {
+        if (mAudioHwDev->canSetMasterVolume()) {
+            mMasterVolume = 1.0;
+        }
+
+        if (mAudioHwDev->canSetMasterMute()) {
+            mMasterMute = false;
+        }
+    }
+}
+
+void AudioFlinger::MmapPlaybackThread::configure(const audio_attributes_t *attr,
+                                                audio_stream_type_t streamType,
+                                                audio_session_t sessionId,
+                                                const sp<MmapStreamCallback>& callback,
+                                                audio_port_handle_t portId)
+{
+    MmapThread::configure(attr, streamType, sessionId, callback, portId);
+    mStreamType = streamType;
+}
+
+AudioStreamOut* AudioFlinger::MmapPlaybackThread::clearOutput()
+{
+    Mutex::Autolock _l(mLock);
+    AudioStreamOut *output = mOutput;
+    mOutput = NULL;
+    return output;
+}
+
+void AudioFlinger::MmapPlaybackThread::setMasterVolume(float value)
+{
+    Mutex::Autolock _l(mLock);
+    // Don't apply master volume in SW if our HAL can do it for us.
+    if (mAudioHwDev &&
+            mAudioHwDev->canSetMasterVolume()) {
+        mMasterVolume = 1.0;
+    } else {
+        mMasterVolume = value;
+    }
+}
+
+void AudioFlinger::MmapPlaybackThread::setMasterMute(bool muted)
+{
+    Mutex::Autolock _l(mLock);
+    // Don't apply master mute in SW if our HAL can do it for us.
+    if (mAudioHwDev && mAudioHwDev->canSetMasterMute()) {
+        mMasterMute = false;
+    } else {
+        mMasterMute = muted;
+    }
+}
+
+void AudioFlinger::MmapPlaybackThread::setStreamVolume(audio_stream_type_t stream, float value)
+{
+    Mutex::Autolock _l(mLock);
+    if (stream == mStreamType) {
+        mStreamVolume = value;
+        broadcast_l();
+    }
+}
+
+float AudioFlinger::MmapPlaybackThread::streamVolume(audio_stream_type_t stream) const
+{
+    Mutex::Autolock _l(mLock);
+    if (stream == mStreamType) {
+        return mStreamVolume;
+    }
+    return 0.0f;
+}
+
+void AudioFlinger::MmapPlaybackThread::setStreamMute(audio_stream_type_t stream, bool muted)
+{
+    Mutex::Autolock _l(mLock);
+    if (stream == mStreamType) {
+        mStreamMute= muted;
+        broadcast_l();
+    }
+}
+
+void AudioFlinger::MmapPlaybackThread::invalidateTracks(audio_stream_type_t streamType)
+{
+    Mutex::Autolock _l(mLock);
+    if (streamType == mStreamType) {
+        for (const sp<MmapTrack> &track : mActiveTracks) {
+            track->invalidate();
+        }
+        broadcast_l();
+    }
+}
+
+void AudioFlinger::MmapPlaybackThread::processVolume_l()
+{
+    float volume;
+
+    if (mMasterMute || mStreamMute) {
+        volume = 0;
+    } else {
+        volume = mMasterVolume * mStreamVolume;
+    }
+
+    if (volume != mHalVolFloat) {
+        mHalVolFloat = volume;
+
+        // Convert volumes from float to 8.24
+        uint32_t vol = (uint32_t)(volume * (1 << 24));
+
+        // Delegate volume control to effect in track effect chain if needed
+        // only one effect chain can be present on DirectOutputThread, so if
+        // there is one, the track is connected to it
+        if (!mEffectChains.isEmpty()) {
+            mEffectChains[0]->setVolume_l(&vol, &vol);
+            volume = (float)vol / (1 << 24);
+        }
+
+        mOutput->stream->setVolume(volume, volume);
+
+        if (mCallback != 0) {
+            int channelCount;
+            if (isOutput()) {
+                channelCount = audio_channel_count_from_out_mask(mChannelMask);
+            } else {
+                channelCount = audio_channel_count_from_in_mask(mChannelMask);
+            }
+            Vector<float> values;
+            for (int i = 0; i < channelCount; i++) {
+                values.add(volume);
+            }
+            mCallback->onVolumeChanged(mChannelMask, values);
+        }
+    }
+}
+
+void AudioFlinger::MmapPlaybackThread::checkSilentMode_l()
+{
+    if (!mMasterMute) {
+        char value[PROPERTY_VALUE_MAX];
+        if (property_get("ro.audio.silent", value, "0") > 0) {
+            char *endptr;
+            unsigned long ul = strtoul(value, &endptr, 0);
+            if (*endptr == '\0' && ul != 0) {
+                ALOGD("Silence is golden");
+                // The setprop command will not allow a property to be changed after
+                // the first time it is set, so we don't have to worry about un-muting.
+                setMasterMute_l(true);
+            }
+        }
+    }
+}
+
+void AudioFlinger::MmapPlaybackThread::dumpInternals(int fd, const Vector<String16>& args)
+{
+    MmapThread::dumpInternals(fd, args);
+
+    dprintf(fd, "  Stream type: %d Stream volume: %f HAL volume: %f Stream mute %d\n", mStreamType, mStreamVolume, mHalVolFloat, mStreamMute);
+    dprintf(fd, "  Master volume: %f Master mute %d\n", mMasterVolume, mMasterMute);
+}
+
+AudioFlinger::MmapCaptureThread::MmapCaptureThread(
+        const sp<AudioFlinger>& audioFlinger, audio_io_handle_t id,
+        AudioHwDevice *hwDev,  AudioStreamIn *input,
+        audio_devices_t outDevice, audio_devices_t inDevice, bool systemReady)
+    : MmapThread(audioFlinger, id, hwDev, input->stream, outDevice, inDevice, systemReady),
+      mInput(input)
+{
+    snprintf(mThreadName, kThreadNameLength, "AudioMmapIn_%X", id);
+    mChannelCount = audio_channel_count_from_in_mask(mChannelMask);
+}
+
+AudioFlinger::AudioStreamIn* AudioFlinger::MmapCaptureThread::clearInput()
+{
+    Mutex::Autolock _l(mLock);
+    AudioStreamIn *input = mInput;
+    mInput = NULL;
+    return input;
+}
 } // namespace android
diff --git a/services/audioflinger/Threads.h b/services/audioflinger/Threads.h
index 3fb0b07..2a6652d 100644
--- a/services/audioflinger/Threads.h
+++ b/services/audioflinger/Threads.h
@@ -29,7 +29,8 @@
         DIRECT,             // Thread class is DirectOutputThread
         DUPLICATING,        // Thread class is DuplicatingThread
         RECORD,             // Thread class is RecordThread
-        OFFLOAD             // Thread class is OffloadThread
+        OFFLOAD,            // Thread class is OffloadThread
+        MMAP                // control thread for MMAP stream
     };
 
     static const char *threadTypeToString(type_t type);
@@ -126,23 +127,25 @@
 
     class PrioConfigEventData : public ConfigEventData {
     public:
-        PrioConfigEventData(pid_t pid, pid_t tid, int32_t prio) :
-            mPid(pid), mTid(tid), mPrio(prio) {}
+        PrioConfigEventData(pid_t pid, pid_t tid, int32_t prio, bool forApp) :
+            mPid(pid), mTid(tid), mPrio(prio), mForApp(forApp) {}
 
         virtual  void dump(char *buffer, size_t size) {
-            snprintf(buffer, size, "Prio event: pid %d, tid %d, prio %d\n", mPid, mTid, mPrio);
+            snprintf(buffer, size, "Prio event: pid %d, tid %d, prio %d, for app? %d\n",
+                    mPid, mTid, mPrio, mForApp);
         }
 
         const pid_t mPid;
         const pid_t mTid;
         const int32_t mPrio;
+        const bool mForApp;
     };
 
     class PrioConfigEvent : public ConfigEvent {
     public:
-        PrioConfigEvent(pid_t pid, pid_t tid, int32_t prio) :
+        PrioConfigEvent(pid_t pid, pid_t tid, int32_t prio, bool forApp) :
             ConfigEvent(CFG_EVENT_PRIO, true) {
-            mData = new PrioConfigEventData(pid, tid, prio);
+            mData = new PrioConfigEventData(pid, tid, prio, forApp);
         }
         virtual ~PrioConfigEvent() {}
     };
@@ -267,8 +270,8 @@
                 status_t    sendConfigEvent_l(sp<ConfigEvent>& event);
                 void        sendIoConfigEvent(audio_io_config_event event, pid_t pid = 0);
                 void        sendIoConfigEvent_l(audio_io_config_event event, pid_t pid = 0);
-                void        sendPrioConfigEvent(pid_t pid, pid_t tid, int32_t prio);
-                void        sendPrioConfigEvent_l(pid_t pid, pid_t tid, int32_t prio);
+                void        sendPrioConfigEvent(pid_t pid, pid_t tid, int32_t prio, bool forApp);
+                void        sendPrioConfigEvent_l(pid_t pid, pid_t tid, int32_t prio, bool forApp);
                 status_t    sendSetParameterConfigEvent_l(const String8& keyValuePair);
                 status_t    sendCreateAudioPatchConfigEvent(const struct audio_patch *patch,
                                                             audio_patch_handle_t *handle);
@@ -390,6 +393,8 @@
                 virtual status_t    checkEffectCompatibility_l(const effect_descriptor_t *desc,
                                                                audio_session_t sessionId) = 0;
 
+                        void        broadcast_l();
+
     mutable     Mutex                   mLock;
 
 protected:
@@ -482,6 +487,9 @@
                 sp<NBLog::Writer>       mNBLogWriter;
                 bool                    mSystemReady;
                 ExtendedTimestamp       mTimestamp;
+                // A condition that must be evaluated by the thread loop has changed and
+                // we must not wait for async write callback in the thread loop before evaluating it
+                bool                    mSignalPending;
 
                 // ActiveTracks is a sorted vector of track type T representing the
                 // active tracks of threadLoop() to be considered by the locked prepare portion.
@@ -569,8 +577,22 @@
                 };
 };
 
+class VolumeInterface {
+ public:
+
+    virtual ~VolumeInterface() {}
+
+    virtual void        setMasterVolume(float value) = 0;
+    virtual void        setMasterMute(bool muted) = 0;
+    virtual void        setStreamVolume(audio_stream_type_t stream, float value) = 0;
+    virtual void        setStreamMute(audio_stream_type_t stream, bool muted) = 0;
+    virtual float       streamVolume(audio_stream_type_t stream) const = 0;
+
+};
+
 // --- PlaybackThread ---
-class PlaybackThread : public ThreadBase, public StreamOutHalInterfaceCallback {
+class PlaybackThread : public ThreadBase, public StreamOutHalInterfaceCallback,
+    public VolumeInterface {
 public:
 
 #include "PlaybackTracks.h"
@@ -659,13 +681,12 @@
                 // same, but lock must already be held
                 uint32_t    latency_l() const;
 
-                void        setMasterVolume(float value);
-                void        setMasterMute(bool muted);
-
-                void        setStreamVolume(audio_stream_type_t stream, float value);
-                void        setStreamMute(audio_stream_type_t stream, bool muted);
-
-                float       streamVolume(audio_stream_type_t stream) const;
+                // VolumeInterface
+    virtual     void        setMasterVolume(float value);
+    virtual     void        setMasterMute(bool muted);
+    virtual     void        setStreamVolume(audio_stream_type_t stream, float value);
+    virtual     void        setStreamMute(audio_stream_type_t stream, bool muted);
+    virtual     float       streamVolume(audio_stream_type_t stream) const;
 
                 sp<Track>   createTrack_l(
                                 const sp<AudioFlinger::Client>& client,
@@ -868,7 +889,6 @@
     status_t    addTrack_l(const sp<Track>& track);
     bool        destroyTrack_l(const sp<Track>& track);
     void        removeTrack_l(const sp<Track>& track);
-    void        broadcast_l();
 
     void        readOutputParameters_l();
 
@@ -930,9 +950,6 @@
     // Bit 0 is reset by the async callback thread calling resetDraining(). Out of sequence
     // callbacks are ignored.
     uint32_t                        mDrainSequence;
-    // A condition that must be evaluated by prepareTrack_l() has changed and we must not wait
-    // for async write callback in the thread loop before evaluating it
-    bool                            mSignalPending;
     sp<AsyncCallbackThread>         mCallbackThread;
 
 private:
@@ -1274,7 +1291,6 @@
     virtual     bool        hasFastMixer() const { return false; }
 };
 
-
 // record thread
 class RecordThread : public ThreadBase
 {
@@ -1346,6 +1362,7 @@
 
     // Thread virtuals
     virtual bool        threadLoop();
+    virtual void        preExit();
 
     // RefBase
     virtual void        onFirstRef();
@@ -1491,3 +1508,153 @@
 
             bool                                mFastTrackAvail;    // true if fast track available
 };
+
+class MmapThread : public ThreadBase
+{
+ public:
+
+#include "MmapTracks.h"
+
+    MmapThread(const sp<AudioFlinger>& audioFlinger, audio_io_handle_t id,
+                      AudioHwDevice *hwDev, sp<StreamHalInterface> stream,
+                      audio_devices_t outDevice, audio_devices_t inDevice, bool systemReady);
+    virtual     ~MmapThread();
+
+    virtual     void        configure(const audio_attributes_t *attr,
+                                      audio_stream_type_t streamType,
+                                      audio_session_t sessionId,
+                                      const sp<MmapStreamCallback>& callback,
+                                      audio_port_handle_t portId);
+
+                void        disconnect();
+
+    // MmapStreamInterface
+    status_t createMmapBuffer(int32_t minSizeFrames,
+                                      struct audio_mmap_buffer_info *info);
+    status_t getMmapPosition(struct audio_mmap_position *position);
+    status_t start(const MmapStreamInterface::Client& client, audio_port_handle_t *handle);
+    status_t stop(audio_port_handle_t handle);
+
+    // RefBase
+    virtual     void        onFirstRef();
+
+    // Thread virtuals
+    virtual     bool        threadLoop();
+
+    virtual     void        threadLoop_exit();
+    virtual     void        threadLoop_standby();
+
+    virtual     status_t    initCheck() const { return (mHalStream == 0) ? NO_INIT : NO_ERROR; }
+    virtual     size_t      frameCount() const { return mFrameCount; }
+    virtual     bool        checkForNewParameter_l(const String8& keyValuePair,
+                                                    status_t& status);
+    virtual     String8     getParameters(const String8& keys);
+    virtual     void        ioConfigChanged(audio_io_config_event event, pid_t pid = 0);
+                void        readHalParameters_l();
+    virtual     void        cacheParameters_l() {}
+    virtual     status_t    createAudioPatch_l(const struct audio_patch *patch,
+                                               audio_patch_handle_t *handle);
+    virtual     status_t    releaseAudioPatch_l(const audio_patch_handle_t handle);
+    virtual     void        getAudioPortConfig(struct audio_port_config *config);
+
+    virtual     sp<StreamHalInterface> stream() const { return mHalStream; }
+    virtual     status_t    addEffectChain_l(const sp<EffectChain>& chain);
+    virtual     size_t      removeEffectChain_l(const sp<EffectChain>& chain);
+    virtual     status_t    checkEffectCompatibility_l(const effect_descriptor_t *desc,
+                                                               audio_session_t sessionId);
+
+    virtual     uint32_t    hasAudioSession_l(audio_session_t sessionId) const;
+    virtual     status_t    setSyncEvent(const sp<SyncEvent>& event);
+    virtual     bool        isValidSyncEvent(const sp<SyncEvent>& event) const;
+
+    virtual     void        checkSilentMode_l() {}
+    virtual     void        processVolume_l() {}
+                void        checkInvalidTracks_l();
+
+    virtual     audio_stream_type_t streamType() { return AUDIO_STREAM_DEFAULT; }
+
+    virtual     void        invalidateTracks(audio_stream_type_t streamType __unused) {}
+
+                void        dump(int fd, const Vector<String16>& args);
+    virtual     void        dumpInternals(int fd, const Vector<String16>& args);
+                void        dumpTracks(int fd, const Vector<String16>& args);
+
+    virtual     bool        isOutput() const = 0;
+
+ protected:
+
+                audio_attributes_t      mAttr;
+                audio_session_t         mSessionId;
+                audio_port_handle_t     mPortId;
+
+                sp<MmapStreamCallback>  mCallback;
+                sp<StreamHalInterface>  mHalStream;
+                sp<DeviceHalInterface>  mHalDevice;
+                AudioHwDevice* const    mAudioHwDev;
+                ActiveTracks<MmapTrack> mActiveTracks;
+};
+
+class MmapPlaybackThread : public MmapThread, public VolumeInterface
+{
+
+public:
+    MmapPlaybackThread(const sp<AudioFlinger>& audioFlinger, audio_io_handle_t id,
+                      AudioHwDevice *hwDev, AudioStreamOut *output,
+                      audio_devices_t outDevice, audio_devices_t inDevice, bool systemReady);
+    virtual     ~MmapPlaybackThread() {}
+
+    virtual     void        configure(const audio_attributes_t *attr,
+                                      audio_stream_type_t streamType,
+                                      audio_session_t sessionId,
+                                      const sp<MmapStreamCallback>& callback,
+                                      audio_port_handle_t portId);
+
+                AudioStreamOut* clearOutput();
+
+                // VolumeInterface
+    virtual     void        setMasterVolume(float value);
+    virtual     void        setMasterMute(bool muted);
+    virtual     void        setStreamVolume(audio_stream_type_t stream, float value);
+    virtual     void        setStreamMute(audio_stream_type_t stream, bool muted);
+    virtual     float       streamVolume(audio_stream_type_t stream) const;
+
+                void        setMasterMute_l(bool muted) { mMasterMute = muted; }
+
+    virtual     void        invalidateTracks(audio_stream_type_t streamType);
+
+    virtual     audio_stream_type_t streamType() { return mStreamType; }
+    virtual     void        checkSilentMode_l();
+    virtual     void        processVolume_l();
+
+    virtual     void        dumpInternals(int fd, const Vector<String16>& args);
+
+    virtual     bool        isOutput() const { return true; }
+
+protected:
+
+                audio_stream_type_t         mStreamType;
+                float                       mMasterVolume;
+                float                       mStreamVolume;
+                bool                        mMasterMute;
+                bool                        mStreamMute;
+                float                       mHalVolFloat;
+                AudioStreamOut*             mOutput;
+};
+
+class MmapCaptureThread : public MmapThread
+{
+
+public:
+    MmapCaptureThread(const sp<AudioFlinger>& audioFlinger, audio_io_handle_t id,
+                      AudioHwDevice *hwDev, AudioStreamIn *input,
+                      audio_devices_t outDevice, audio_devices_t inDevice, bool systemReady);
+    virtual     ~MmapCaptureThread() {}
+
+                AudioStreamIn* clearInput();
+
+    virtual     bool           isOutput() const { return false; }
+
+protected:
+
+                AudioStreamIn*  mInput;
+};
diff --git a/services/audioflinger/TrackBase.h b/services/audioflinger/TrackBase.h
index 9ca2d63..e0c09f7 100644
--- a/services/audioflinger/TrackBase.h
+++ b/services/audioflinger/TrackBase.h
@@ -77,6 +77,7 @@
             audio_track_cblk_t* cblk() const { return mCblk; }
             audio_session_t sessionId() const { return mSessionId; }
             uid_t       uid() const { return mUid; }
+            audio_port_handle_t portId() const { return mPortId; }
     virtual status_t    setSyncEvent(const sp<SyncEvent>& event);
 
             sp<IMemory> getBuffers() const { return mBufferMemory; }
@@ -86,6 +87,10 @@
             bool        isPatchTrack() const { return (mType == TYPE_PATCH); }
             bool        isExternalTrack() const { return !isOutputTrack() && !isPatchTrack(); }
 
+    virtual void        invalidate() { mIsInvalid = true; }
+            bool        isInvalid() const { return mIsInvalid; }
+
+
 protected:
                         TrackBase(const TrackBase&);
                         TrackBase& operator = (const TrackBase&);
@@ -165,6 +170,7 @@
     track_type          mType;      // must be one of TYPE_DEFAULT, TYPE_OUTPUT, TYPE_PATCH ...
     audio_io_handle_t   mThreadIoHandle; // I/O handle of the thread the track is attached to
     audio_port_handle_t mPortId; // unique ID for this track used by audio policy
+    bool                mIsInvalid; // non-resettable latch, set by invalidate()
 };
 
 // PatchProxyBufferProvider interface is implemented by PatchTrack and PatchRecord.
diff --git a/services/audioflinger/Tracks.cpp b/services/audioflinger/Tracks.cpp
index f2dd884..1abfbbc 100644
--- a/services/audioflinger/Tracks.cpp
+++ b/services/audioflinger/Tracks.cpp
@@ -98,7 +98,8 @@
         mTerminated(false),
         mType(type),
         mThreadIoHandle(thread->id()),
-        mPortId(portId)
+        mPortId(portId),
+        mIsInvalid(false)
 {
     const uid_t callingUid = IPCThreadState::self()->getCallingUid();
     if (!isTrustedCallingUid(callingUid) || clientUid == AUDIO_UID_INVALID) {
@@ -312,6 +313,16 @@
     return mTrack->setParameters(keyValuePairs);
 }
 
+VolumeShaper::Status AudioFlinger::TrackHandle::applyVolumeShaper(
+        const sp<VolumeShaper::Configuration>& configuration,
+        const sp<VolumeShaper::Operation>& operation) {
+    return mTrack->applyVolumeShaper(configuration, operation);
+}
+
+sp<VolumeShaper::State> AudioFlinger::TrackHandle::getVolumeShaperState(int id) {
+    return mTrack->getVolumeShaperState(id);
+}
+
 status_t AudioFlinger::TrackHandle::getTimestamp(AudioTimestamp& timestamp)
 {
     return mTrack->getTimestamp(timestamp);
@@ -362,10 +373,10 @@
     mAuxEffectId(0), mHasVolumeController(false),
     mPresentationCompleteFrames(0),
     mFrameMap(16 /* sink-frame-to-track-frame map memory */),
+    mVolumeHandler(new VolumeHandler(sampleRate)),
     // mSinkTimestamp
     mFastIndex(-1),
     mCachedVolume(1.0),
-    mIsInvalid(false),
     mResumeToStopping(false),
     mFlushHwPending(false),
     mFlags(flags)
@@ -874,6 +885,24 @@
     }
 }
 
+VolumeShaper::Status AudioFlinger::PlaybackThread::Track::applyVolumeShaper(
+        const sp<VolumeShaper::Configuration>& configuration,
+        const sp<VolumeShaper::Operation>& operation)
+{
+    // Note: We don't check if Thread exists.
+
+    // mVolumeHandler is thread-safe.
+    return mVolumeHandler->applyVolumeShaper(configuration, operation);
+}
+
+sp<VolumeShaper::State> AudioFlinger::PlaybackThread::Track::getVolumeShaperState(int id)
+{
+    // Note: We don't check if Thread exists.
+
+    // mVolumeHandler is thread safe.
+    return mVolumeHandler->getVolumeShaperState(id);
+}
+
 status_t AudioFlinger::PlaybackThread::Track::getTimestamp(AudioTimestamp& timestamp)
 {
     if (!isOffloaded() && !isDirect()) {
@@ -1042,8 +1071,8 @@
 
 void AudioFlinger::PlaybackThread::Track::invalidate()
 {
+    TrackBase::invalidate();
     signalClientFlag(CBLK_INVALID);
-    mIsInvalid = true;
 }
 
 void AudioFlinger::PlaybackThread::Track::disable()
@@ -1599,6 +1628,7 @@
 
 void AudioFlinger::RecordThread::RecordTrack::invalidate()
 {
+    TrackBase::invalidate();
     // FIXME should use proxy, and needs work
     audio_track_cblk_t* cblk = mCblk;
     android_atomic_or(CBLK_INVALID, &cblk->mFlags);
@@ -1735,4 +1765,76 @@
     mProxy->releaseBuffer(buffer);
 }
 
+
+
+AudioFlinger::MmapThread::MmapTrack::MmapTrack(ThreadBase *thread,
+        uint32_t sampleRate,
+        audio_format_t format,
+        audio_channel_mask_t channelMask,
+        audio_session_t sessionId,
+        uid_t uid,
+        audio_port_handle_t portId)
+    :   TrackBase(thread, NULL, sampleRate, format,
+                  channelMask, 0, NULL, sessionId, uid, false,
+                  ALLOC_NONE,
+                  TYPE_DEFAULT, portId)
+{
+}
+
+AudioFlinger::MmapThread::MmapTrack::~MmapTrack()
+{
+}
+
+status_t AudioFlinger::MmapThread::MmapTrack::initCheck() const
+{
+    return NO_ERROR;
+}
+
+status_t AudioFlinger::MmapThread::MmapTrack::start(AudioSystem::sync_event_t event __unused,
+                                                        audio_session_t triggerSession __unused)
+{
+    return NO_ERROR;
+}
+
+void AudioFlinger::MmapThread::MmapTrack::stop()
+{
+}
+
+// AudioBufferProvider interface
+status_t AudioFlinger::MmapThread::MmapTrack::getNextBuffer(AudioBufferProvider::Buffer* buffer)
+{
+    buffer->frameCount = 0;
+    buffer->raw = nullptr;
+    return INVALID_OPERATION;
+}
+
+// ExtendedAudioBufferProvider interface
+size_t AudioFlinger::MmapThread::MmapTrack::framesReady() const {
+    return 0;
+}
+
+int64_t AudioFlinger::MmapThread::MmapTrack::framesReleased() const
+{
+    return 0;
+}
+
+void AudioFlinger::MmapThread::MmapTrack::onTimestamp(const ExtendedTimestamp &timestamp __unused)
+{
+}
+
+/*static*/ void AudioFlinger::MmapThread::MmapTrack::appendDumpHeader(String8& result)
+{
+    result.append("    Client Fmt Chn mask  SRate\n");
+}
+
+void AudioFlinger::MmapThread::MmapTrack::dump(char* buffer, size_t size)
+{
+    snprintf(buffer, size, "            %6u %3u    %08X %5u\n",
+            mUid,
+            mFormat,
+            mChannelMask,
+            mSampleRate);
+
+}
+
 } // namespace android
diff --git a/services/audioflinger/TypedLogger.cpp b/services/audioflinger/TypedLogger.cpp
new file mode 100644
index 0000000..b5b1bc5
--- /dev/null
+++ b/services/audioflinger/TypedLogger.cpp
@@ -0,0 +1,25 @@
+/*
+*
+* Copyright 2017, The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#define LOG_TAG "AudioFlinger"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <pthread.h>
+#include "TypedLogger.h"
+
+thread_local android::NBLog::Writer *logWriterTLS;
diff --git a/services/audioflinger/TypedLogger.h b/services/audioflinger/TypedLogger.h
new file mode 100644
index 0000000..2d71ab4
--- /dev/null
+++ b/services/audioflinger/TypedLogger.h
@@ -0,0 +1,29 @@
+/*
+*
+* Copyright 2017, The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+#ifndef TYPED_LOGGER_H
+#define TYPED_LOGGER_H
+
+#include <media/nbaio/NBLog.h>
+
+extern "C" {
+    extern thread_local android::NBLog::Writer *logWriterTLS;
+}
+
+#define LOGF(fmt, ...) logWriterTLS->logFormat(fmt, ##__VA_ARGS__)
+
+#endif
\ No newline at end of file
diff --git a/services/audiopolicy/common/managerdefinitions/include/AudioOutputDescriptor.h b/services/audiopolicy/common/managerdefinitions/include/AudioOutputDescriptor.h
index 35bb021..16fed70 100644
--- a/services/audiopolicy/common/managerdefinitions/include/AudioOutputDescriptor.h
+++ b/services/audiopolicy/common/managerdefinitions/include/AudioOutputDescriptor.h
@@ -16,6 +16,8 @@
 
 #pragma once
 
+#include <sys/types.h>
+
 #include "AudioPort.h"
 #include <RoutingStrategy.h>
 #include <utils/Errors.h>
@@ -128,6 +130,7 @@
     sp<SwAudioOutputDescriptor> mOutput1;    // used by duplicated outputs: first output
     sp<SwAudioOutputDescriptor> mOutput2;    // used by duplicated outputs: second output
     uint32_t mDirectOpenCount; // number of clients using this output (direct outputs only)
+    uid_t mDirectClientUid; // uid of the direct output client
     uint32_t mGlobalRefCount;  // non-stream-specific ref count
 };
 
diff --git a/services/audiopolicy/common/managerdefinitions/src/AudioOutputDescriptor.cpp b/services/audiopolicy/common/managerdefinitions/src/AudioOutputDescriptor.cpp
index 93b7f47..5643335 100644
--- a/services/audiopolicy/common/managerdefinitions/src/AudioOutputDescriptor.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/AudioOutputDescriptor.cpp
@@ -223,7 +223,7 @@
     : AudioOutputDescriptor(profile, clientInterface),
     mProfile(profile), mIoHandle(0), mLatency(0),
     mFlags((audio_output_flags_t)0), mPolicyMix(NULL),
-    mOutput1(0), mOutput2(0), mDirectOpenCount(0), mGlobalRefCount(0)
+    mOutput1(0), mOutput2(0), mDirectOpenCount(0), mDirectClientUid(0), mGlobalRefCount(0)
 {
     if (profile != NULL) {
         mFlags = (audio_output_flags_t)profile->getFlags();
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
index 54c406c..edbff1b 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
@@ -752,7 +752,7 @@
     ALOGV("getOutput() device %d, stream %d, samplingRate %d, format %x, channelMask %x, flags %x",
           device, stream, samplingRate, format, channelMask, flags);
 
-    return getOutputForDevice(device, AUDIO_SESSION_ALLOCATE,
+    return getOutputForDevice(device, AUDIO_SESSION_ALLOCATE, uid_t{0} /*Invalid uid*/,
                               stream, samplingRate,format, channelMask,
                               flags, offloadInfo);
 }
@@ -832,7 +832,7 @@
     ALOGV("getOutputForAttr() device 0x%x, samplingRate %d, format %x, channelMask %x, flags %x",
           device, config->sample_rate, config->format, config->channel_mask, flags);
 
-    *output = getOutputForDevice(device, session, *stream,
+    *output = getOutputForDevice(device, session, uid, *stream,
                                  config->sample_rate, config->format, config->channel_mask,
                                  flags, &config->offload_info);
     if (*output == AUDIO_IO_HANDLE_NONE) {
@@ -846,6 +846,7 @@
 audio_io_handle_t AudioPolicyManager::getOutputForDevice(
         audio_devices_t device,
         audio_session_t session __unused,
+        uid_t clientUid,
         audio_stream_type_t stream,
         uint32_t samplingRate,
         audio_format_t format,
@@ -954,13 +955,21 @@
             sp<SwAudioOutputDescriptor> desc = mOutputs.valueAt(i);
             if (!desc->isDuplicated() && (profile == desc->mProfile)) {
                 outputDesc = desc;
-                // reuse direct output if currently open and configured with same parameters
+                // reuse direct output if currently open by the same client
+                // and configured with same parameters
                 if ((samplingRate == outputDesc->mSamplingRate) &&
-                        audio_formats_match(format, outputDesc->mFormat) &&
-                        (channelMask == outputDesc->mChannelMask)) {
-                    outputDesc->mDirectOpenCount++;
-                    ALOGV("getOutput() reusing direct output %d", mOutputs.keyAt(i));
-                    return mOutputs.keyAt(i);
+                    audio_formats_match(format, outputDesc->mFormat) &&
+                    (channelMask == outputDesc->mChannelMask)) {
+                  if (clientUid == outputDesc->mDirectClientUid) {
+                      outputDesc->mDirectOpenCount++;
+                      ALOGV("getOutput() reusing direct output %d", mOutputs.keyAt(i));
+                      return mOutputs.keyAt(i);
+                  } else {
+                      ALOGV("getOutput() do not reuse direct output because current client (%ld) "
+                            "is not the same as requesting client (%ld)",
+                            (long)outputDesc->mDirectClientUid, (long)clientUid);
+                      goto non_direct_output;
+                  }
                 }
             }
         }
@@ -1028,6 +1037,7 @@
         outputDesc->mRefCount[stream] = 0;
         outputDesc->mStopTime[stream] = 0;
         outputDesc->mDirectOpenCount = 1;
+        outputDesc->mDirectClientUid = clientUid;
 
         audio_io_handle_t srcOutput = getOutputForEffect();
         addOutput(output, outputDesc);
@@ -1621,8 +1631,8 @@
                                                               isSoundTrigger,
                                                               policyMix, mpClientInterface);
 
-
     // reuse an open input if possible
+    sp<AudioInputDescriptor> reusedInputDesc;
     for (size_t i = 0; i < mInputs.size(); i++) {
         sp<AudioInputDescriptor> desc = mInputs.valueAt(i);
         // reuse input if:
@@ -1646,28 +1656,27 @@
                 } else {
                     ALOGW("getInputForDevice() record with different attributes"
                           " exists for session %d", session);
-                    break;
+                    continue;
                 }
             } else if (isSoundTrigger) {
-                break;
+                continue;
             }
 
-            // force close input if current source is now the highest priority request on this input
-            // and current input properties are not exactly as requested.
-            if (!isConcurrentSource(inputSource) && !isConcurrentSource(desc->inputSource()) &&
+            // Reuse the already opened input stream on this profile if:
+            // - the new capture source is background OR
+            // - the path requested configurations match OR
+            // - the new source priority is less than the highest source priority on this input
+            // If the input stream cannot be reused, close it before opening a new stream
+            // on the same profile for the new client so that the requested path configuration
+            // can be selected.
+            if (!isConcurrentSource(inputSource) &&
                     ((desc->mSamplingRate != samplingRate ||
                     desc->mChannelMask != channelMask ||
                     !audio_formats_match(desc->mFormat, format)) &&
                     (source_priority(desc->getHighestPrioritySource(false /*activeOnly*/)) <
                      source_priority(inputSource)))) {
-                ALOGV("%s: ", __FUNCTION__);
-                AudioSessionCollection sessions = desc->getAudioSessions(false /*activeOnly*/);
-                for (size_t j = 0; j < sessions.size(); j++) {
-                    audio_session_t currentSession = sessions.keyAt(j);
-                    stopInput(desc->mIoHandle, currentSession);
-                    releaseInput(desc->mIoHandle, currentSession);
-                }
-                break;
+                reusedInputDesc = desc;
+                continue;
             } else {
                 desc->addAudioSession(session, audioSession);
                 ALOGV("%s: reusing input %d", __FUNCTION__, mInputs.keyAt(i));
@@ -1676,6 +1685,15 @@
         }
     }
 
+    if (reusedInputDesc != 0) {
+        AudioSessionCollection sessions = reusedInputDesc->getAudioSessions(false /*activeOnly*/);
+        for (size_t j = 0; j < sessions.size(); j++) {
+            audio_session_t currentSession = sessions.keyAt(j);
+            stopInput(reusedInputDesc->mIoHandle, currentSession);
+            releaseInput(reusedInputDesc->mIoHandle, currentSession);
+        }
+    }
+
     audio_config_t config = AUDIO_CONFIG_INITIALIZER;
     config.sample_rate = profileSamplingRate;
     config.channel_mask = profileChannelMask;
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.h b/services/audiopolicy/managerdefault/AudioPolicyManager.h
index cea3f54..3dfcde6 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.h
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.h
@@ -625,6 +625,7 @@
         audio_io_handle_t getOutputForDevice(
                 audio_devices_t device,
                 audio_session_t session,
+                uid_t client,
                 audio_stream_type_t stream,
                 uint32_t samplingRate,
                 audio_format_t format,
diff --git a/services/camera/libcameraservice/Android.mk b/services/camera/libcameraservice/Android.mk
index 9328d65..0401796 100644
--- a/services/camera/libcameraservice/Android.mk
+++ b/services/camera/libcameraservice/Android.mk
@@ -46,7 +46,6 @@
     device3/Camera3IOStreamBase.cpp \
     device3/Camera3InputStream.cpp \
     device3/Camera3OutputStream.cpp \
-    device3/Camera3ZslStream.cpp \
     device3/Camera3DummyStream.cpp \
     device3/Camera3SharedOutputStream.cpp \
     device3/StatusTracker.cpp \
diff --git a/services/camera/libcameraservice/CameraService.cpp b/services/camera/libcameraservice/CameraService.cpp
index f429df8..0547a69 100644
--- a/services/camera/libcameraservice/CameraService.cpp
+++ b/services/camera/libcameraservice/CameraService.cpp
@@ -651,22 +651,6 @@
     return String8(formattedTime);
 }
 
-int CameraService::getCameraPriorityFromProcState(int procState) {
-    // Find the priority for the camera usage based on the process state.  Higher priority clients
-    // win for evictions.
-    if (procState < 0) {
-        ALOGE("%s: Received invalid process state %d from ActivityManagerService!", __FUNCTION__,
-                procState);
-        return -1;
-    }
-    // Treat sleeping TOP processes the same as regular TOP processes, for
-    // access priority.  This is important for lock-screen camera launch scenarios
-    if (procState == PROCESS_STATE_TOP_SLEEPING) {
-        procState = PROCESS_STATE_TOP;
-    }
-    return INT_MAX - procState;
-}
-
 Status CameraService::getCameraVendorTagDescriptor(
         /*out*/
         hardware::camera2::params::VendorTagDescriptor* desc) {
@@ -1212,20 +1196,24 @@
         std::vector<int> ownerPids(mActiveClientManager.getAllOwners());
         ownerPids.push_back(clientPid);
 
-        // Use the value +PROCESS_STATE_NONEXISTENT, to avoid taking
-        // address of PROCESS_STATE_NONEXISTENT as a reference argument
-        // for the vector constructor. PROCESS_STATE_NONEXISTENT does
-        // not have an out-of-class definition.
-        std::vector<int> priorities(ownerPids.size(), +PROCESS_STATE_NONEXISTENT);
+        std::vector<int> priorityScores(ownerPids.size());
+        std::vector<int> states(ownerPids.size());
 
-        // Get priorites of all active PIDs
-        ProcessInfoService::getProcessStatesFromPids(ownerPids.size(), &ownerPids[0],
-                /*out*/&priorities[0]);
+        // Get priority scores of all active PIDs
+        status_t err = ProcessInfoService::getProcessStatesScoresFromPids(
+                ownerPids.size(), &ownerPids[0], /*out*/&states[0],
+                /*out*/&priorityScores[0]);
+        if (err != OK) {
+            ALOGE("%s: Priority score query failed: %d",
+                  __FUNCTION__, err);
+            return err;
+        }
 
         // Update all active clients' priorities
-        std::map<int,int> pidToPriorityMap;
+        std::map<int,resource_policy::ClientPriority> pidToPriorityMap;
         for (size_t i = 0; i < ownerPids.size() - 1; i++) {
-            pidToPriorityMap.emplace(ownerPids[i], getCameraPriorityFromProcState(priorities[i]));
+            pidToPriorityMap.emplace(ownerPids[i],
+                    resource_policy::ClientPriority(priorityScores[i], states[i]));
         }
         mActiveClientManager.updatePriorities(pidToPriorityMap);
 
@@ -1242,7 +1230,9 @@
         clientDescriptor = CameraClientManager::makeClientDescriptor(cameraId,
                 sp<BasicClient>{nullptr}, static_cast<int32_t>(state->getCost()),
                 state->getConflicting(),
-                getCameraPriorityFromProcState(priorities[priorities.size() - 1]), clientPid);
+                priorityScores[priorityScores.size() - 1],
+                clientPid,
+                states[states.size() - 1]);
 
         // Find clients that would be evicted
         auto evicted = mActiveClientManager.wouldEvict(clientDescriptor);
@@ -1259,19 +1249,22 @@
                     mActiveClientManager.getIncompatibleClients(clientDescriptor);
 
             String8 msg = String8::format("%s : DENIED connect device %s client for package %s "
-                    "(PID %d, priority %d) due to eviction policy", curTime.string(),
+                    "(PID %d, score %d state %d) due to eviction policy", curTime.string(),
                     cameraId.string(), packageName.string(), clientPid,
-                    getCameraPriorityFromProcState(priorities[priorities.size() - 1]));
+                    priorityScores[priorityScores.size() - 1],
+                    states[states.size() - 1]);
 
             for (auto& i : incompatibleClients) {
                 msg.appendFormat("\n   - Blocked by existing device %s client for package %s"
-                        "(PID %" PRId32 ", priority %" PRId32 ")", i->getKey().string(),
-                        String8{i->getValue()->getPackageName()}.string(), i->getOwnerId(),
-                        i->getPriority());
+                        "(PID %" PRId32 ", score %" PRId32 ", state %" PRId32 ")",
+                        i->getKey().string(),
+                        String8{i->getValue()->getPackageName()}.string(),
+                        i->getOwnerId(), i->getPriority().getScore(),
+                        i->getPriority().getState());
                 ALOGE("   Conflicts with: Device %s, client package %s (PID %"
-                        PRId32 ", priority %" PRId32 ")", i->getKey().string(),
+                        PRId32 ", score %" PRId32 ", state %" PRId32 ")", i->getKey().string(),
                         String8{i->getValue()->getPackageName()}.string(), i->getOwnerId(),
-                        i->getPriority());
+                        i->getPriority().getScore(), i->getPriority().getState());
             }
 
             // Log the client's attempt
@@ -1299,12 +1292,14 @@
 
             // Log the clients evicted
             logEvent(String8::format("EVICT device %s client held by package %s (PID"
-                    " %" PRId32 ", priority %" PRId32 ")\n   - Evicted by device %s client for"
-                    " package %s (PID %d, priority %" PRId32 ")",
+                    " %" PRId32 ", score %" PRId32 ", state %" PRId32 ")\n - Evicted by device %s client for"
+                    " package %s (PID %d, score %" PRId32 ", state %" PRId32 ")",
                     i->getKey().string(), String8{clientSp->getPackageName()}.string(),
-                    i->getOwnerId(), i->getPriority(), cameraId.string(),
+                    i->getOwnerId(), i->getPriority().getScore(),
+                    i->getPriority().getState(), cameraId.string(),
                     packageName.string(), clientPid,
-                    getCameraPriorityFromProcState(priorities[priorities.size() - 1])));
+                    priorityScores[priorityScores.size() - 1],
+                    states[states.size() - 1]));
 
             // Notify the client of disconnection
             clientSp->notifyError(hardware::camera2::ICameraDeviceCallbacks::ERROR_CAMERA_DISCONNECTED,
@@ -1883,14 +1878,7 @@
             return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, msg.string());
     }
 
-    int facing = -1;
-    int deviceVersion = getDeviceVersion(id, /*out*/ &facing);
-    if (facing == -1) {
-        String8 msg = String8::format("Unable to get facing for camera device %s",
-                id.string());
-        ALOGE("%s: %s", __FUNCTION__, msg.string());
-        return STATUS_ERROR(ERROR_INVALID_OPERATION, msg.string());
-    }
+    int deviceVersion = getDeviceVersion(id);
     switch(deviceVersion) {
         case CAMERA_DEVICE_API_VERSION_1_0:
         case CAMERA_DEVICE_API_VERSION_3_0:
@@ -2142,9 +2130,11 @@
 
         // Log the clients evicted
         logEvent(String8::format("EVICT device %s client held by package %s (PID %"
-                PRId32 ", priority %" PRId32 ")\n   - Evicted due to user switch.",
-                i->getKey().string(), String8{clientSp->getPackageName()}.string(),
-                i->getOwnerId(), i->getPriority()));
+                PRId32 ", score %" PRId32 ", state %" PRId32 ")\n   - Evicted due"
+                " to user switch.", i->getKey().string(),
+                String8{clientSp->getPackageName()}.string(),
+                i->getOwnerId(), i->getPriority().getScore(),
+                i->getPriority().getState()));
 
     }
 
@@ -2680,7 +2670,8 @@
         String8 key = i->getKey();
         int32_t cost = i->getCost();
         int32_t pid = i->getOwnerId();
-        int32_t priority = i->getPriority();
+        int32_t score = i->getPriority().getScore();
+        int32_t state = i->getPriority().getState();
         auto conflicting = i->getConflicting();
         auto clientSp = i->getValue();
         String8 packageName;
@@ -2690,8 +2681,8 @@
             uid_t clientUid = clientSp->getClientUid();
             clientUserId = multiuser_get_user_id(clientUid);
         }
-        ret.appendFormat("\n(Camera ID: %s, Cost: %" PRId32 ", PID: %" PRId32 ", Priority: %"
-                PRId32 ", ", key.string(), cost, pid, priority);
+        ret.appendFormat("\n(Camera ID: %s, Cost: %" PRId32 ", PID: %" PRId32 ", Score: %"
+                PRId32 ", State: %" PRId32, key.string(), cost, pid, score, state);
 
         if (clientSp.get() != nullptr) {
             ret.appendFormat("User Id: %d, ", clientUserId);
@@ -2713,16 +2704,18 @@
 
 CameraService::DescriptorPtr CameraService::CameraClientManager::makeClientDescriptor(
         const String8& key, const sp<BasicClient>& value, int32_t cost,
-        const std::set<String8>& conflictingKeys, int32_t priority, int32_t ownerId) {
+        const std::set<String8>& conflictingKeys, int32_t score, int32_t ownerId,
+        int32_t state) {
 
     return std::make_shared<resource_policy::ClientDescriptor<String8, sp<BasicClient>>>(
-            key, value, cost, conflictingKeys, priority, ownerId);
+            key, value, cost, conflictingKeys, score, ownerId, state);
 }
 
 CameraService::DescriptorPtr CameraService::CameraClientManager::makeClientDescriptor(
         const sp<BasicClient>& value, const CameraService::DescriptorPtr& partial) {
     return makeClientDescriptor(partial->getKey(), value, partial->getCost(),
-            partial->getConflicting(), partial->getPriority(), partial->getOwnerId());
+            partial->getConflicting(), partial->getPriority().getScore(),
+            partial->getOwnerId(), partial->getPriority().getState());
 }
 
 // ----------------------------------------------------------------------------
@@ -2793,21 +2786,23 @@
         }
 
         auto clientDescriptor = mActiveClientManager.get(cameraId);
-        if (clientDescriptor == nullptr) {
+        if (clientDescriptor != nullptr) {
+            dprintf(fd, "  Device %s is open. Client instance dump:\n",
+                    cameraId.string());
+            dprintf(fd, "    Client priority score: %d state: %d\n",
+                    clientDescriptor->getPriority().getScore(),
+                    clientDescriptor->getPriority().getState());
+            dprintf(fd, "    Client PID: %d\n", clientDescriptor->getOwnerId());
+
+            auto client = clientDescriptor->getValue();
+            dprintf(fd, "    Client package: %s\n",
+                    String8(client->getPackageName()).string());
+
+            client->dumpClient(fd, args);
+        } else {
             dprintf(fd, "  Device %s is closed, no client instance\n",
                     cameraId.string());
-            continue;
         }
-        dprintf(fd, "  Device %s is open. Client instance dump:\n",
-                cameraId.string());
-        dprintf(fd, "    Client priority level: %d\n", clientDescriptor->getPriority());
-        dprintf(fd, "    Client PID: %d\n", clientDescriptor->getOwnerId());
-
-        auto client = clientDescriptor->getValue();
-        dprintf(fd, "    Client package: %s\n",
-                String8(client->getPackageName()).string());
-
-        client->dumpClient(fd, args);
 
         if (mModule != nullptr) {
             dprintf(fd, "== Camera HAL device %s static information: ==\n", cameraId.string());
diff --git a/services/camera/libcameraservice/CameraService.h b/services/camera/libcameraservice/CameraService.h
index d463b59..c7acdc9 100644
--- a/services/camera/libcameraservice/CameraService.h
+++ b/services/camera/libcameraservice/CameraService.h
@@ -75,11 +75,6 @@
         API_2 = 2
     };
 
-    // Process state (mirrors frameworks/base/core/java/android/app/ActivityManager.java)
-    static const int PROCESS_STATE_NONEXISTENT = -1;
-    static const int PROCESS_STATE_TOP = 2;
-    static const int PROCESS_STATE_TOP_SLEEPING = 5;
-
     // 3 second busy timeout when other clients are connecting
     static const nsecs_t DEFAULT_CONNECT_TIMEOUT_NS = 3000000000;
 
@@ -402,8 +397,8 @@
          * Make a ClientDescriptor object wrapping the given BasicClient strong pointer.
          */
         static DescriptorPtr makeClientDescriptor(const String8& key, const sp<BasicClient>& value,
-                int32_t cost, const std::set<String8>& conflictingKeys, int32_t priority,
-                int32_t ownerId);
+                int32_t cost, const std::set<String8>& conflictingKeys, int32_t score,
+                int32_t ownerId, int32_t state);
 
         /**
          * Make a ClientDescriptor object wrapping the given BasicClient strong pointer with
@@ -775,11 +770,6 @@
      */
     static String8 getFormattedCurrentTime();
 
-    /**
-     * Get the camera eviction priority from the current process state given by ActivityManager.
-     */
-    static int getCameraPriorityFromProcState(int procState);
-
     static binder::Status makeClient(const sp<CameraService>& cameraService,
             const sp<IInterface>& cameraCb, const String16& packageName, const String8& cameraId,
             int facing, int clientPid, uid_t clientUid, int servicePid, bool legacyMode,
diff --git a/services/camera/libcameraservice/api1/client2/Parameters.cpp b/services/camera/libcameraservice/api1/client2/Parameters.cpp
index 6efe4e3..83c84af 100644
--- a/services/camera/libcameraservice/api1/client2/Parameters.cpp
+++ b/services/camera/libcameraservice/api1/client2/Parameters.cpp
@@ -911,14 +911,26 @@
             CameraParameters::FALSE);
     }
 
+    bool isZslReprocessPresent = false;
+    camera_metadata_ro_entry_t availableCapabilities =
+        staticInfo(ANDROID_REQUEST_AVAILABLE_CAPABILITIES);
+    if (0 < availableCapabilities.count) {
+        const uint8_t *caps = availableCapabilities.data.u8;
+        for (size_t i = 0; i < availableCapabilities.count; i++) {
+            if (ANDROID_REQUEST_AVAILABLE_CAPABILITIES_PRIVATE_REPROCESSING ==
+                caps[i]) {
+                isZslReprocessPresent = true;
+                break;
+            }
+        }
+    }
+
     if (slowJpegMode || property_get_bool("camera.disable_zsl_mode", false)) {
         ALOGI("Camera %d: Disabling ZSL mode", cameraId);
         allowZslMode = false;
     } else {
-        allowZslMode = true;
+        allowZslMode = isZslReprocessPresent;
     }
-    // TODO (b/34131351): turn ZSL back on after fixing the issue
-    allowZslMode = false;
 
     ALOGI("%s: allowZslMode: %d slowJpegMode %d", __FUNCTION__, allowZslMode, slowJpegMode);
 
diff --git a/services/camera/libcameraservice/api1/client2/ZslProcessor.cpp b/services/camera/libcameraservice/api1/client2/ZslProcessor.cpp
index b127472..e03ec66 100644
--- a/services/camera/libcameraservice/api1/client2/ZslProcessor.cpp
+++ b/services/camera/libcameraservice/api1/client2/ZslProcessor.cpp
@@ -37,9 +37,91 @@
 #include "api1/client2/ZslProcessor.h"
 #include "device3/Camera3Device.h"
 
+typedef android::RingBufferConsumer::PinnedBufferItem PinnedBufferItem;
+
 namespace android {
 namespace camera2 {
 
+namespace {
+struct TimestampFinder : public RingBufferConsumer::RingBufferComparator {
+    typedef RingBufferConsumer::BufferInfo BufferInfo;
+
+    enum {
+        SELECT_I1 = -1,
+        SELECT_I2 = 1,
+        SELECT_NEITHER = 0,
+    };
+
+    explicit TimestampFinder(nsecs_t timestamp) : mTimestamp(timestamp) {}
+    ~TimestampFinder() {}
+
+    template <typename T>
+    static void swap(T& a, T& b) {
+        T tmp = a;
+        a = b;
+        b = tmp;
+    }
+
+    /**
+     * Try to find the best candidate for a ZSL buffer.
+     * Match priority from best to worst:
+     *  1) Timestamps match.
+     *  2) Timestamp is closest to the needle (and lower).
+     *  3) Timestamp is closest to the needle (and higher).
+     *
+     */
+    virtual int compare(const BufferInfo *i1,
+                        const BufferInfo *i2) const {
+        // Try to select non-null object first.
+        if (i1 == NULL) {
+            return SELECT_I2;
+        } else if (i2 == NULL) {
+            return SELECT_I1;
+        }
+
+        // Best result: timestamp is identical
+        if (i1->mTimestamp == mTimestamp) {
+            return SELECT_I1;
+        } else if (i2->mTimestamp == mTimestamp) {
+            return SELECT_I2;
+        }
+
+        const BufferInfo* infoPtrs[2] = {
+            i1,
+            i2
+        };
+        int infoSelectors[2] = {
+            SELECT_I1,
+            SELECT_I2
+        };
+
+        // Order i1,i2 so that always i1.timestamp < i2.timestamp
+        if (i1->mTimestamp > i2->mTimestamp) {
+            swap(infoPtrs[0], infoPtrs[1]);
+            swap(infoSelectors[0], infoSelectors[1]);
+        }
+
+        // Second best: closest (lower) timestamp
+        if (infoPtrs[1]->mTimestamp < mTimestamp) {
+            return infoSelectors[1];
+        } else if (infoPtrs[0]->mTimestamp < mTimestamp) {
+            return infoSelectors[0];
+        }
+
+        // Worst: closest (higher) timestamp
+        return infoSelectors[0];
+
+        /**
+         * The above cases should cover all the possibilities,
+         * and we get an 'empty' result only if the ring buffer
+         * was empty itself
+         */
+    }
+
+    const nsecs_t mTimestamp;
+}; // struct TimestampFinder
+} // namespace anonymous
+
 ZslProcessor::ZslProcessor(
     sp<Camera2Client> client,
     wp<CaptureSequencer> sequencer):
@@ -50,8 +132,13 @@
         mSequencer(sequencer),
         mId(client->getCameraId()),
         mZslStreamId(NO_STREAM),
+        mInputStreamId(NO_STREAM),
         mFrameListHead(0),
-        mHasFocuser(false) {
+        mHasFocuser(false),
+        mInputBuffer(nullptr),
+        mProducer(nullptr),
+        mInputProducer(nullptr),
+        mInputProducerSlot(-1) {
     // Initialize buffer queue and frame list based on pipeline max depth.
     size_t pipelineMaxDepth = kDefaultMaxPipelineDepth;
     if (client != 0) {
@@ -83,7 +170,6 @@
     mFrameListDepth = pipelineMaxDepth;
     mBufferQueueDepth = mFrameListDepth + 1;
 
-
     mZslQueue.insertAt(0, mBufferQueueDepth);
     mFrameList.insertAt(0, mFrameListDepth);
     sp<CaptureSequencer> captureSequencer = mSequencer.promote();
@@ -144,7 +230,7 @@
         return INVALID_OPERATION;
     }
 
-    if (mZslStreamId != NO_STREAM) {
+    if ((mZslStreamId != NO_STREAM) || (mInputStreamId != NO_STREAM)) {
         // Check if stream parameters have to change
         uint32_t currentWidth, currentHeight;
         res = device->getStreamInfo(mZslStreamId,
@@ -157,21 +243,57 @@
         }
         if (currentWidth != (uint32_t)params.fastInfo.arrayWidth ||
                 currentHeight != (uint32_t)params.fastInfo.arrayHeight) {
-            ALOGV("%s: Camera %d: Deleting stream %d since the buffer "
-                  "dimensions changed",
-                __FUNCTION__, client->getCameraId(), mZslStreamId);
-            res = device->deleteStream(mZslStreamId);
-            if (res == -EBUSY) {
-                ALOGV("%s: Camera %d: Device is busy, call updateStream again "
-                      " after it becomes idle", __FUNCTION__, mId);
-                return res;
-            } else if(res != OK) {
-                ALOGE("%s: Camera %d: Unable to delete old output stream "
-                        "for ZSL: %s (%d)", __FUNCTION__,
-                        client->getCameraId(), strerror(-res), res);
-                return res;
+            if (mZslStreamId != NO_STREAM) {
+                ALOGV("%s: Camera %d: Deleting stream %d since the buffer "
+                      "dimensions changed",
+                    __FUNCTION__, client->getCameraId(), mZslStreamId);
+                res = device->deleteStream(mZslStreamId);
+                if (res == -EBUSY) {
+                    ALOGV("%s: Camera %d: Device is busy, call updateStream again "
+                          " after it becomes idle", __FUNCTION__, mId);
+                    return res;
+                } else if(res != OK) {
+                    ALOGE("%s: Camera %d: Unable to delete old output stream "
+                            "for ZSL: %s (%d)", __FUNCTION__,
+                            client->getCameraId(), strerror(-res), res);
+                    return res;
+                }
+                mZslStreamId = NO_STREAM;
             }
-            mZslStreamId = NO_STREAM;
+
+            if (mInputStreamId != NO_STREAM) {
+                ALOGV("%s: Camera %d: Deleting stream %d since the buffer "
+                      "dimensions changed",
+                    __FUNCTION__, client->getCameraId(), mInputStreamId);
+                res = device->deleteStream(mInputStreamId);
+                if (res == -EBUSY) {
+                    ALOGV("%s: Camera %d: Device is busy, call updateStream again "
+                          " after it becomes idle", __FUNCTION__, mId);
+                    return res;
+                } else if(res != OK) {
+                    ALOGE("%s: Camera %d: Unable to delete old output stream "
+                            "for ZSL: %s (%d)", __FUNCTION__,
+                            client->getCameraId(), strerror(-res), res);
+                    return res;
+                }
+                mInputStreamId = NO_STREAM;
+            }
+            if (nullptr != mInputProducer.get()) {
+                mInputProducer->disconnect(NATIVE_WINDOW_API_CPU);
+                mInputProducer.clear();
+            }
+        }
+    }
+
+    if (mInputStreamId == NO_STREAM) {
+        res = device->createInputStream(params.fastInfo.arrayWidth,
+            params.fastInfo.arrayHeight, HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED,
+            &mInputStreamId);
+        if (res != OK) {
+            ALOGE("%s: Camera %d: Can't create input stream: "
+                    "%s (%d)", __FUNCTION__, client->getCameraId(),
+                    strerror(-res), res);
+            return res;
         }
     }
 
@@ -179,21 +301,23 @@
         // Create stream for HAL production
         // TODO: Sort out better way to select resolution for ZSL
 
-        // Note that format specified internally in Camera3ZslStream
-        res = device->createZslStream(
-                params.fastInfo.arrayWidth, params.fastInfo.arrayHeight,
-                mBufferQueueDepth,
-                &mZslStreamId,
-                &mZslStream);
+        sp<IGraphicBufferProducer> producer;
+        sp<IGraphicBufferConsumer> consumer;
+        BufferQueue::createBufferQueue(&producer, &consumer);
+        mProducer = new RingBufferConsumer(consumer, GRALLOC_USAGE_HW_CAMERA_ZSL,
+            mBufferQueueDepth);
+        mProducer->setName(String8("Camera2-ZslRingBufferConsumer"));
+        sp<Surface> outSurface = new Surface(producer);
+
+        res = device->createStream(outSurface, params.fastInfo.arrayWidth,
+            params.fastInfo.arrayHeight, HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED,
+            HAL_DATASPACE_UNKNOWN, CAMERA3_STREAM_ROTATION_0, &mZslStreamId);
         if (res != OK) {
             ALOGE("%s: Camera %d: Can't create ZSL stream: "
                     "%s (%d)", __FUNCTION__, client->getCameraId(),
                     strerror(-res), res);
             return res;
         }
-
-        // Only add the camera3 buffer listener when the stream is created.
-        mZslStream->addBufferListener(this);
     }
 
     client->registerFrameListener(Camera2Client::kPreviewRequestIdStart,
@@ -207,23 +331,27 @@
 status_t ZslProcessor::deleteStream() {
     ATRACE_CALL();
     status_t res;
+    sp<Camera3Device> device = nullptr;
+    sp<Camera2Client> client = nullptr;
 
     Mutex::Autolock l(mInputMutex);
 
-    if (mZslStreamId != NO_STREAM) {
-        sp<Camera2Client> client = mClient.promote();
+    if ((mZslStreamId != NO_STREAM) || (mInputStreamId != NO_STREAM)) {
+        client = mClient.promote();
         if (client == 0) {
             ALOGE("%s: Camera %d: Client does not exist", __FUNCTION__, mId);
             return INVALID_OPERATION;
         }
 
-        sp<Camera3Device> device =
+        device =
             reinterpret_cast<Camera3Device*>(client->getCameraDevice().get());
         if (device == 0) {
             ALOGE("%s: Camera %d: Device does not exist", __FUNCTION__, mId);
             return INVALID_OPERATION;
         }
+    }
 
+    if (mZslStreamId != NO_STREAM) {
         res = device->deleteStream(mZslStreamId);
         if (res != OK) {
             ALOGE("%s: Camera %d: Cannot delete ZSL output stream %d: "
@@ -234,6 +362,23 @@
 
         mZslStreamId = NO_STREAM;
     }
+    if (mInputStreamId != NO_STREAM) {
+        res = device->deleteStream(mInputStreamId);
+        if (res != OK) {
+            ALOGE("%s: Camera %d: Cannot delete input stream %d: "
+                    "%s (%d)", __FUNCTION__, client->getCameraId(),
+                    mInputStreamId, strerror(-res), res);
+            return res;
+        }
+
+        mInputStreamId = NO_STREAM;
+    }
+
+    if (nullptr != mInputProducer.get()) {
+        mInputProducer->disconnect(NATIVE_WINDOW_API_CPU);
+        mInputProducer.clear();
+    }
+
     return OK;
 }
 
@@ -282,6 +427,45 @@
     return OK;
 }
 
+void ZslProcessor::notifyInputReleased() {
+    Mutex::Autolock l(mInputMutex);
+
+    assert(nullptr != mInputBuffer.get());
+    assert(nullptr != mInputProducer.get());
+
+    sp<GraphicBuffer> gb;
+    sp<Fence> fence;
+    auto rc = mInputProducer->detachNextBuffer(&gb, &fence);
+    if (NO_ERROR != rc) {
+        ALOGE("%s: Failed to detach buffer from input producer: %d",
+            __FUNCTION__, rc);
+        return;
+    }
+
+    BufferItem &item = mInputBuffer->getBufferItem();
+    sp<GraphicBuffer> inputBuffer = item.mGraphicBuffer;
+    if (gb->handle != inputBuffer->handle) {
+        ALOGE("%s: Input mismatch, expected buffer %p received %p", __FUNCTION__,
+            inputBuffer->handle, gb->handle);
+        return;
+    }
+
+    mInputBuffer.clear();
+    ALOGV("%s: Memory optimization, clearing ZSL queue",
+          __FUNCTION__);
+    clearZslResultQueueLocked();
+
+    // Required so we accept more ZSL requests
+    mState = RUNNING;
+}
+
+void ZslProcessor::InputProducerListener::onBufferReleased() {
+    sp<ZslProcessor> parent = mParent.promote();
+    if (nullptr != parent.get()) {
+        parent->notifyInputReleased();
+    }
+}
+
 status_t ZslProcessor::pushToReprocess(int32_t requestId) {
     ALOGV("%s: Send in reprocess request with id %d",
             __FUNCTION__, requestId);
@@ -302,15 +486,38 @@
     nsecs_t candidateTimestamp = getCandidateTimestampLocked(&metadataIdx);
 
     if (candidateTimestamp == -1) {
-        ALOGE("%s: Could not find good candidate for ZSL reprocessing",
+        ALOGV("%s: Could not find good candidate for ZSL reprocessing",
               __FUNCTION__);
         return NOT_ENOUGH_DATA;
+    } else {
+        ALOGV("%s: Found good ZSL candidate idx: %u",
+            __FUNCTION__, (unsigned int) metadataIdx);
     }
 
-    res = mZslStream->enqueueInputBufferByTimestamp(candidateTimestamp,
-                                                    /*actualTimestamp*/NULL);
+    if (nullptr == mInputProducer.get()) {
+        res = client->getCameraDevice()->getInputBufferProducer(
+            &mInputProducer);
+        if (res != OK) {
+            ALOGE("%s: Camera %d: Unable to retrieve input producer: "
+                    "%s (%d)", __FUNCTION__, client->getCameraId(),
+                    strerror(-res), res);
+            return res;
+        }
 
-    if (res == mZslStream->NO_BUFFER_AVAILABLE) {
+        IGraphicBufferProducer::QueueBufferOutput output;
+        res = mInputProducer->connect(new InputProducerListener(this),
+            NATIVE_WINDOW_API_CPU, false, &output);
+        if (res != OK) {
+            ALOGE("%s: Camera %d: Unable to connect to input producer: "
+                    "%s (%d)", __FUNCTION__, client->getCameraId(),
+                    strerror(-res), res);
+            return res;
+        }
+    }
+
+    res = enqueueInputBufferByTimestamp(candidateTimestamp,
+        /*actualTimestamp*/NULL);
+    if (res == NO_BUFFER_AVAILABLE) {
         ALOGV("%s: No ZSL buffers yet", __FUNCTION__);
         return NOT_ENOUGH_DATA;
     } else if (res != OK) {
@@ -348,7 +555,7 @@
         }
 
         int32_t inputStreams[1] =
-                { mZslStreamId };
+                { mInputStreamId };
         res = request.update(ANDROID_REQUEST_INPUT_STREAMS,
                 inputStreams, 1);
         if (res != OK) {
@@ -428,6 +635,70 @@
     return OK;
 }
 
+status_t ZslProcessor::enqueueInputBufferByTimestamp(
+        nsecs_t timestamp,
+        nsecs_t* actualTimestamp) {
+
+    TimestampFinder timestampFinder = TimestampFinder(timestamp);
+
+    mInputBuffer = mProducer->pinSelectedBuffer(timestampFinder,
+        /*waitForFence*/false);
+
+    if (nullptr == mInputBuffer.get()) {
+        ALOGE("%s: No ZSL buffers were available yet", __FUNCTION__);
+        return NO_BUFFER_AVAILABLE;
+    }
+
+    nsecs_t actual = mInputBuffer->getBufferItem().mTimestamp;
+
+    if (actual != timestamp) {
+        // TODO: This is problematic, the metadata queue timestamp should
+        //       usually have a corresponding ZSL buffer with the same timestamp.
+        //       If this is not the case, then it is possible that we will use
+        //       a ZSL buffer from a different request, which can result in
+        //       side effects during the reprocess pass.
+        ALOGW("%s: ZSL buffer candidate search didn't find an exact match --"
+              " requested timestamp = %" PRId64 ", actual timestamp = %" PRId64,
+              __FUNCTION__, timestamp, actual);
+    }
+
+    if (nullptr != actualTimestamp) {
+        *actualTimestamp = actual;
+    }
+
+    BufferItem &item = mInputBuffer->getBufferItem();
+    auto rc = mInputProducer->attachBuffer(&mInputProducerSlot,
+        item.mGraphicBuffer);
+    if (OK != rc) {
+        ALOGE("%s: Failed to attach input ZSL buffer to producer: %d",
+            __FUNCTION__, rc);
+        return rc;
+    }
+
+    IGraphicBufferProducer::QueueBufferOutput output;
+    IGraphicBufferProducer::QueueBufferInput input(item.mTimestamp,
+            item.mIsAutoTimestamp, item.mDataSpace, item.mCrop,
+            item.mScalingMode, item.mTransform, item.mFence);
+    rc = mInputProducer->queueBuffer(mInputProducerSlot, input, &output);
+    if (OK != rc) {
+        ALOGE("%s: Failed to queue ZSL buffer to producer: %d",
+            __FUNCTION__, rc);
+        return rc;
+    }
+
+    return rc;
+}
+
+status_t ZslProcessor::clearInputRingBufferLocked(nsecs_t* latestTimestamp) {
+
+    if (nullptr != latestTimestamp) {
+        *latestTimestamp = mProducer->getLatestTimestamp();
+    }
+    mInputBuffer.clear();
+
+    return mProducer->clear();
+}
+
 status_t ZslProcessor::clearZslQueue() {
     Mutex::Autolock l(mInputMutex);
     // If in middle of capture, can't clear out queue
@@ -437,10 +708,10 @@
 }
 
 status_t ZslProcessor::clearZslQueueLocked() {
-    if (mZslStream != 0) {
+    if (NO_STREAM != mZslStreamId) {
         // clear result metadata list first.
         clearZslResultQueueLocked();
-        return mZslStream->clearInputRingBuffer(&mLatestClearedBufferTimestamp);
+        return clearInputRingBufferLocked(&mLatestClearedBufferTimestamp);
     }
     return OK;
 }
@@ -630,46 +901,5 @@
     return minTimestamp;
 }
 
-void ZslProcessor::onBufferAcquired(const BufferInfo& /*bufferInfo*/) {
-    // Intentionally left empty
-    // Although theoretically we could use this to get better dump info
-}
-
-void ZslProcessor::onBufferReleased(const BufferInfo& bufferInfo) {
-
-    // ignore output buffers
-    if (bufferInfo.mOutput) {
-        return;
-    }
-
-    // Lock mutex only once we know this is an input buffer returned to avoid
-    // potential deadlock
-    Mutex::Autolock l(mInputMutex);
-    // TODO: Verify that the buffer is in our queue by looking at timestamp
-    // theoretically unnecessary unless we change the following assumptions:
-    // -- only 1 buffer reprocessed at a time (which is the case now)
-
-    // Erase entire ZSL queue since we've now completed the capture and preview
-    // is stopped.
-    //
-    // We need to guarantee that if we do two back-to-back captures,
-    // the second won't use a buffer that's older/the same as the first, which
-    // is theoretically possible if we don't clear out the queue and the
-    // selection criteria is something like 'newest'. Clearing out the result
-    // metadata queue on a completed capture ensures we'll only use new timestamp.
-    // Calling clearZslQueueLocked is a guaranteed deadlock because this callback
-    // holds the Camera3Stream internal lock (mLock), and clearZslQueueLocked requires
-    // to hold the same lock.
-    // TODO: need figure out a way to clear the Zsl buffer queue properly. Right now
-    // it is safe not to do so, as back to back ZSL capture requires stop and start
-    // preview, which will flush ZSL queue automatically.
-    ALOGV("%s: Memory optimization, clearing ZSL queue",
-          __FUNCTION__);
-    clearZslResultQueueLocked();
-
-    // Required so we accept more ZSL requests
-    mState = RUNNING;
-}
-
 }; // namespace camera2
 }; // namespace android
diff --git a/services/camera/libcameraservice/api1/client2/ZslProcessor.h b/services/camera/libcameraservice/api1/client2/ZslProcessor.h
index 86c06c6..6113d58 100644
--- a/services/camera/libcameraservice/api1/client2/ZslProcessor.h
+++ b/services/camera/libcameraservice/api1/client2/ZslProcessor.h
@@ -24,10 +24,11 @@
 #include <utils/Condition.h>
 #include <gui/BufferItem.h>
 #include <gui/BufferItemConsumer.h>
+#include <gui/RingBufferConsumer.h>
+#include <gui/IProducerListener.h>
 #include <camera/CameraMetadata.h>
 
 #include "api1/client2/FrameProcessor.h"
-#include "device3/Camera3ZslStream.h"
 
 namespace android {
 
@@ -42,7 +43,6 @@
  * ZSL queue processing for HALv3.0 or newer
  */
 class ZslProcessor :
-                    public camera3::Camera3StreamBufferListener,
             virtual public Thread,
             virtual public FrameProcessor::FilteredListener {
   public:
@@ -81,19 +81,18 @@
 
     void dump(int fd, const Vector<String16>& args) const;
 
-  protected:
-    /**
-     **********************************************
-     * Camera3StreamBufferListener implementation *
-     **********************************************
-     */
-    typedef camera3::Camera3StreamBufferListener::BufferInfo BufferInfo;
-    // Buffer was acquired by the HAL
-    virtual void onBufferAcquired(const BufferInfo& bufferInfo);
-    // Buffer was released by the HAL
-    virtual void onBufferReleased(const BufferInfo& bufferInfo);
-
   private:
+
+    class InputProducerListener : public BnProducerListener {
+    public:
+        InputProducerListener(wp<ZslProcessor> parent) : mParent(parent) {}
+        virtual void onBufferReleased();
+        virtual bool needsReleaseNotify() { return true; }
+
+    private:
+        wp<ZslProcessor> mParent;
+    };
+
     static const nsecs_t kWaitDuration = 10000000; // 10 ms
     nsecs_t mLatestClearedBufferTimestamp;
 
@@ -102,6 +101,8 @@
         LOCKED
     } mState;
 
+    enum { NO_BUFFER_AVAILABLE = BufferQueue::NO_BUFFER_AVAILABLE };
+
     wp<Camera2Client> mClient;
     wp<CaptureSequencer> mSequencer;
 
@@ -114,7 +115,7 @@
     };
 
     int mZslStreamId;
-    sp<camera3::Camera3ZslStream> mZslStream;
+    int mInputStreamId;
 
     struct ZslPair {
         BufferItem buffer;
@@ -135,6 +136,12 @@
 
     bool mHasFocuser;
 
+    // Input buffer queued into HAL
+    sp<RingBufferConsumer::PinnedBufferItem> mInputBuffer;
+    sp<RingBufferConsumer>                   mProducer;
+    sp<IGraphicBufferProducer>               mInputProducer;
+    int                                      mInputProducerSlot;
+
     virtual bool threadLoop();
 
     status_t clearZslQueueLocked();
@@ -145,6 +152,11 @@
 
     nsecs_t getCandidateTimestampLocked(size_t* metadataIdx) const;
 
+    status_t enqueueInputBufferByTimestamp( nsecs_t timestamp,
+        nsecs_t* actualTimestamp);
+    status_t clearInputRingBufferLocked(nsecs_t* latestTimestamp);
+    void notifyInputReleased();
+
     bool isFixedFocusMode(uint8_t afMode) const;
 
     // Update the post-processing metadata with the default still capture request template
diff --git a/services/camera/libcameraservice/api2/CameraDeviceClient.cpp b/services/camera/libcameraservice/api2/CameraDeviceClient.cpp
index 2618838..e710f0a 100644
--- a/services/camera/libcameraservice/api2/CameraDeviceClient.cpp
+++ b/services/camera/libcameraservice/api2/CameraDeviceClient.cpp
@@ -1217,6 +1217,13 @@
         return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
     }
 
+    if (mStreamInfoMap[streamId].finalized) {
+        String8 msg = String8::format("Camera %s: finalizeOutputConfigurations has been called"
+                " on stream ID %d", mCameraIdStr.string(), streamId);
+        ALOGW("%s: %s", __FUNCTION__, msg.string());
+        return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
+    }
+
     if (!mDevice.get()) {
         return STATUS_ERROR(CameraService::ERROR_DISCONNECTED, "Camera device no longer alive");
     }
@@ -1246,13 +1253,6 @@
         surfaceId++;
     }
 
-    if (consumerSurfaces.size() == 0) {
-        String8 msg = String8::format("Camera %s: New OutputConfiguration has the same surfaces"
-                " for stream (ID %d)", mCameraIdStr.string(), streamId);
-        ALOGW("%s: %s", __FUNCTION__, msg.string());
-        return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
-    }
-
     // Finish the deferred stream configuration with the surface.
     status_t err;
     err = mDevice->setConsumerSurfaces(streamId, consumerSurfaces);
@@ -1267,6 +1267,7 @@
         if (deferredStreamIndex != NAME_NOT_FOUND) {
             mDeferredStreams.removeItemsAt(deferredStreamIndex);
         }
+        mStreamInfoMap[streamId].finalized = true;
     } else if (err == NO_INIT) {
         res = STATUS_ERROR_FMT(CameraService::ERROR_ILLEGAL_ARGUMENT,
                 "Camera %s: Deferred surface is invalid: %s (%d)",
diff --git a/services/camera/libcameraservice/api2/CameraDeviceClient.h b/services/camera/libcameraservice/api2/CameraDeviceClient.h
index 2f6d414..012beb4 100644
--- a/services/camera/libcameraservice/api2/CameraDeviceClient.h
+++ b/services/camera/libcameraservice/api2/CameraDeviceClient.h
@@ -215,6 +215,7 @@
         int format;
         android_dataspace dataSpace;
         int32_t consumerUsage;
+        bool finalized = false;
         OutputStreamInfo() :
                 width(-1), height(-1), format(-1), dataSpace(HAL_DATASPACE_UNKNOWN),
                 consumerUsage(0) {}
diff --git a/services/camera/libcameraservice/device3/Camera3BufferManager.cpp b/services/camera/libcameraservice/device3/Camera3BufferManager.cpp
index 5a5d7b7..d45891f 100644
--- a/services/camera/libcameraservice/device3/Camera3BufferManager.cpp
+++ b/services/camera/libcameraservice/device3/Camera3BufferManager.cpp
@@ -19,6 +19,7 @@
 #define ATRACE_TAG ATRACE_TAG_CAMERA
 
 #include <gui/ISurfaceComposer.h>
+#include <gui/IGraphicBufferAlloc.h>
 #include <private/gui/ComposerService.h>
 #include <utils/Log.h>
 #include <utils/Trace.h>
diff --git a/services/camera/libcameraservice/device3/Camera3BufferManager.h b/services/camera/libcameraservice/device3/Camera3BufferManager.h
index b5b86a3..f44c4a3 100644
--- a/services/camera/libcameraservice/device3/Camera3BufferManager.h
+++ b/services/camera/libcameraservice/device3/Camera3BufferManager.h
@@ -26,6 +26,8 @@
 
 namespace android {
 
+class IGraphicBufferAlloc;
+
 namespace camera3 {
 
 struct StreamInfo;
diff --git a/services/camera/libcameraservice/device3/Camera3Device.cpp b/services/camera/libcameraservice/device3/Camera3Device.cpp
index 208dcb6..068a2b3 100644
--- a/services/camera/libcameraservice/device3/Camera3Device.cpp
+++ b/services/camera/libcameraservice/device3/Camera3Device.cpp
@@ -51,7 +51,6 @@
 #include "device3/Camera3Device.h"
 #include "device3/Camera3OutputStream.h"
 #include "device3/Camera3InputStream.h"
-#include "device3/Camera3ZslStream.h"
 #include "device3/Camera3DummyStream.h"
 #include "device3/Camera3SharedOutputStream.h"
 #include "CameraService.h"
@@ -1209,86 +1208,6 @@
     return OK;
 }
 
-
-status_t Camera3Device::createZslStream(
-            uint32_t width, uint32_t height,
-            int depth,
-            /*out*/
-            int *id,
-            sp<Camera3ZslStream>* zslStream) {
-    ATRACE_CALL();
-    Mutex::Autolock il(mInterfaceLock);
-    Mutex::Autolock l(mLock);
-    ALOGV("Camera %s: Creating ZSL stream %d: %d x %d, depth %d",
-            mId.string(), mNextStreamId, width, height, depth);
-
-    status_t res;
-    bool wasActive = false;
-
-    switch (mStatus) {
-        case STATUS_ERROR:
-            ALOGE("%s: Device has encountered a serious error", __FUNCTION__);
-            return INVALID_OPERATION;
-        case STATUS_UNINITIALIZED:
-            ALOGE("%s: Device not initialized", __FUNCTION__);
-            return INVALID_OPERATION;
-        case STATUS_UNCONFIGURED:
-        case STATUS_CONFIGURED:
-            // OK
-            break;
-        case STATUS_ACTIVE:
-            ALOGV("%s: Stopping activity to reconfigure streams", __FUNCTION__);
-            res = internalPauseAndWaitLocked();
-            if (res != OK) {
-                SET_ERR_L("Can't pause captures to reconfigure streams!");
-                return res;
-            }
-            wasActive = true;
-            break;
-        default:
-            SET_ERR_L("Unexpected status: %d", mStatus);
-            return INVALID_OPERATION;
-    }
-    assert(mStatus != STATUS_ACTIVE);
-
-    if (mInputStream != 0) {
-        ALOGE("%s: Cannot create more than 1 input stream", __FUNCTION__);
-        return INVALID_OPERATION;
-    }
-
-    sp<Camera3ZslStream> newStream = new Camera3ZslStream(mNextStreamId,
-                width, height, depth);
-    newStream->setStatusTracker(mStatusTracker);
-
-    res = mOutputStreams.add(mNextStreamId, newStream);
-    if (res < 0) {
-        ALOGE("%s: Can't add new stream to set: %s (%d)",
-                __FUNCTION__, strerror(-res), res);
-        return res;
-    }
-    mInputStream = newStream;
-
-    mNeedConfig = true;
-
-    *id = mNextStreamId++;
-    *zslStream = newStream;
-
-    // Continue captures if active at start
-    if (wasActive) {
-        ALOGV("%s: Restarting activity to reconfigure streams", __FUNCTION__);
-        res = configureStreamsLocked();
-        if (res != OK) {
-            ALOGE("%s: Can't reconfigure device for new stream %d: %s (%d)",
-                    __FUNCTION__, mNextStreamId, strerror(-res), res);
-            return res;
-        }
-        internalResumeLocked();
-    }
-
-    ALOGV("Camera %s: Created ZSL stream", mId.string());
-    return OK;
-}
-
 status_t Camera3Device::createStream(sp<Surface> consumer,
             uint32_t width, uint32_t height, int format,
             android_dataspace dataSpace, camera3_stream_rotation_t rotation, int *id,
@@ -2368,7 +2287,7 @@
         // Boost priority of request thread to SCHED_FIFO.
         pid_t requestThreadTid = mRequestThread->getTid();
         res = requestPriority(getpid(), requestThreadTid,
-                kRequestThreadPriority, /*asynchronous*/ false);
+                kRequestThreadPriority, /*isForApp*/ false, /*asynchronous*/ false);
         if (res != OK) {
             ALOGW("Can't set realtime priority for request processing thread: %s (%d)",
                     strerror(-res), res);
diff --git a/services/camera/libcameraservice/device3/Camera3Device.h b/services/camera/libcameraservice/device3/Camera3Device.h
index 91d682e..e19b62e 100644
--- a/services/camera/libcameraservice/device3/Camera3Device.h
+++ b/services/camera/libcameraservice/device3/Camera3Device.h
@@ -125,12 +125,6 @@
     status_t createInputStream(
             uint32_t width, uint32_t height, int format,
             int *id) override;
-    status_t createZslStream(
-            uint32_t width, uint32_t height,
-            int depth,
-            /*out*/
-            int *id,
-            sp<camera3::Camera3ZslStream>* zslStream);
     status_t createReprocessStreamFromStream(int outputId, int *id) override;
 
     status_t getStreamInfo(int id,
diff --git a/services/camera/libcameraservice/device3/Camera3ZslStream.cpp b/services/camera/libcameraservice/device3/Camera3ZslStream.cpp
deleted file mode 100644
index ea138b7..0000000
--- a/services/camera/libcameraservice/device3/Camera3ZslStream.cpp
+++ /dev/null
@@ -1,348 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "Camera3-ZslStream"
-#define ATRACE_TAG ATRACE_TAG_CAMERA
-//#define LOG_NDEBUG 0
-
-#include <inttypes.h>
-
-#include <utils/Log.h>
-#include <utils/Trace.h>
-#include "Camera3ZslStream.h"
-
-typedef android::RingBufferConsumer::PinnedBufferItem PinnedBufferItem;
-
-namespace android {
-
-namespace camera3 {
-
-namespace {
-struct TimestampFinder : public RingBufferConsumer::RingBufferComparator {
-    typedef RingBufferConsumer::BufferInfo BufferInfo;
-
-    enum {
-        SELECT_I1 = -1,
-        SELECT_I2 = 1,
-        SELECT_NEITHER = 0,
-    };
-
-    explicit TimestampFinder(nsecs_t timestamp) : mTimestamp(timestamp) {}
-    ~TimestampFinder() {}
-
-    template <typename T>
-    static void swap(T& a, T& b) {
-        T tmp = a;
-        a = b;
-        b = tmp;
-    }
-
-    /**
-     * Try to find the best candidate for a ZSL buffer.
-     * Match priority from best to worst:
-     *  1) Timestamps match.
-     *  2) Timestamp is closest to the needle (and lower).
-     *  3) Timestamp is closest to the needle (and higher).
-     *
-     */
-    virtual int compare(const BufferInfo *i1,
-                        const BufferInfo *i2) const {
-        // Try to select non-null object first.
-        if (i1 == NULL) {
-            return SELECT_I2;
-        } else if (i2 == NULL) {
-            return SELECT_I1;
-        }
-
-        // Best result: timestamp is identical
-        if (i1->mTimestamp == mTimestamp) {
-            return SELECT_I1;
-        } else if (i2->mTimestamp == mTimestamp) {
-            return SELECT_I2;
-        }
-
-        const BufferInfo* infoPtrs[2] = {
-            i1,
-            i2
-        };
-        int infoSelectors[2] = {
-            SELECT_I1,
-            SELECT_I2
-        };
-
-        // Order i1,i2 so that always i1.timestamp < i2.timestamp
-        if (i1->mTimestamp > i2->mTimestamp) {
-            swap(infoPtrs[0], infoPtrs[1]);
-            swap(infoSelectors[0], infoSelectors[1]);
-        }
-
-        // Second best: closest (lower) timestamp
-        if (infoPtrs[1]->mTimestamp < mTimestamp) {
-            return infoSelectors[1];
-        } else if (infoPtrs[0]->mTimestamp < mTimestamp) {
-            return infoSelectors[0];
-        }
-
-        // Worst: closest (higher) timestamp
-        return infoSelectors[0];
-
-        /**
-         * The above cases should cover all the possibilities,
-         * and we get an 'empty' result only if the ring buffer
-         * was empty itself
-         */
-    }
-
-    const nsecs_t mTimestamp;
-}; // struct TimestampFinder
-} // namespace anonymous
-
-Camera3ZslStream::Camera3ZslStream(int id, uint32_t width, uint32_t height,
-        int bufferCount) :
-        Camera3OutputStream(id, CAMERA3_STREAM_BIDIRECTIONAL,
-                            width, height,
-                            HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED,
-                            HAL_DATASPACE_UNKNOWN, CAMERA3_STREAM_ROTATION_0) {
-
-    sp<IGraphicBufferProducer> producer;
-    sp<IGraphicBufferConsumer> consumer;
-    BufferQueue::createBufferQueue(&producer, &consumer);
-    mProducer = new RingBufferConsumer(consumer, GRALLOC_USAGE_HW_CAMERA_ZSL, bufferCount);
-    mProducer->setName(String8("Camera2-ZslRingBufferConsumer"));
-    mConsumer = new Surface(producer);
-}
-
-Camera3ZslStream::~Camera3ZslStream() {
-}
-
-status_t Camera3ZslStream::getInputBufferLocked(camera3_stream_buffer *buffer) {
-    ATRACE_CALL();
-
-    status_t res;
-
-    // TODO: potentially register from inputBufferLocked
-    // this should be ok, registerBuffersLocked only calls getBuffer for now
-    // register in output mode instead of input mode for ZSL streams.
-    if (mState == STATE_IN_CONFIG || mState == STATE_IN_RECONFIG) {
-        ALOGE("%s: Stream %d: Buffer registration for input streams"
-              " not implemented (state %d)",
-              __FUNCTION__, mId, mState);
-        return INVALID_OPERATION;
-    }
-
-    if ((res = getBufferPreconditionCheckLocked()) != OK) {
-        return res;
-    }
-
-    ANativeWindowBuffer* anb;
-    int fenceFd;
-
-    assert(mProducer != 0);
-
-    sp<PinnedBufferItem> bufferItem;
-    {
-        List<sp<RingBufferConsumer::PinnedBufferItem> >::iterator it, end;
-        it = mInputBufferQueue.begin();
-        end = mInputBufferQueue.end();
-
-        // Need to call enqueueInputBufferByTimestamp as a prerequisite
-        if (it == end) {
-            ALOGE("%s: Stream %d: No input buffer was queued",
-                    __FUNCTION__, mId);
-            return INVALID_OPERATION;
-        }
-        bufferItem = *it;
-        mInputBufferQueue.erase(it);
-    }
-
-    anb = bufferItem->getBufferItem().mGraphicBuffer->getNativeBuffer();
-    assert(anb != NULL);
-    fenceFd = bufferItem->getBufferItem().mFence->dup();
-
-    /**
-     * FenceFD now owned by HAL except in case of error,
-     * in which case we reassign it to acquire_fence
-     */
-    handoutBufferLocked(*buffer, &(anb->handle), /*acquireFence*/fenceFd,
-                         /*releaseFence*/-1, CAMERA3_BUFFER_STATUS_OK, /*output*/false);
-
-    mBuffersInFlight.push_back(bufferItem);
-
-    return OK;
-}
-
-status_t Camera3ZslStream::returnBufferCheckedLocked(
-            const camera3_stream_buffer &buffer,
-            nsecs_t timestamp,
-            bool output,
-            /*out*/
-            sp<Fence> *releaseFenceOut) {
-
-    if (output) {
-        // Output stream path
-        return Camera3OutputStream::returnBufferCheckedLocked(buffer,
-                                                              timestamp,
-                                                              output,
-                                                              releaseFenceOut);
-    }
-
-    /**
-     * Input stream path
-     */
-    bool bufferFound = false;
-    sp<PinnedBufferItem> bufferItem;
-    {
-        // Find the buffer we are returning
-        Vector<sp<PinnedBufferItem> >::iterator it, end;
-        for (it = mBuffersInFlight.begin(), end = mBuffersInFlight.end();
-             it != end;
-             ++it) {
-
-            const sp<PinnedBufferItem>& tmp = *it;
-            ANativeWindowBuffer *anb =
-                    tmp->getBufferItem().mGraphicBuffer->getNativeBuffer();
-            if (anb != NULL && &(anb->handle) == buffer.buffer) {
-                bufferFound = true;
-                bufferItem = tmp;
-                mBuffersInFlight.erase(it);
-                break;
-            }
-        }
-    }
-    if (!bufferFound) {
-        ALOGE("%s: Stream %d: Can't return buffer that wasn't sent to HAL",
-              __FUNCTION__, mId);
-        return INVALID_OPERATION;
-    }
-
-    int releaseFenceFd = buffer.release_fence;
-
-    if (buffer.status == CAMERA3_BUFFER_STATUS_ERROR) {
-        if (buffer.release_fence != -1) {
-            ALOGE("%s: Stream %d: HAL should not set release_fence(%d) when "
-                  "there is an error", __FUNCTION__, mId, buffer.release_fence);
-            close(buffer.release_fence);
-        }
-
-        /**
-         * Reassign release fence as the acquire fence incase of error
-         */
-        releaseFenceFd = buffer.acquire_fence;
-    }
-
-    /**
-     * Unconditionally return buffer to the buffer queue.
-     * - Fwk takes over the release_fence ownership
-     */
-    sp<Fence> releaseFence = new Fence(releaseFenceFd);
-    bufferItem->getBufferItem().mFence = releaseFence;
-    bufferItem.clear(); // dropping last reference unpins buffer
-
-    *releaseFenceOut = releaseFence;
-
-    return OK;
-}
-
-status_t Camera3ZslStream::returnInputBufferLocked(
-        const camera3_stream_buffer &buffer) {
-    ATRACE_CALL();
-
-    status_t res = returnAnyBufferLocked(buffer, /*timestamp*/0,
-                                         /*output*/false);
-
-    return res;
-}
-
-void Camera3ZslStream::dump(int fd, const Vector<String16> &args) const {
-    (void) args;
-
-    String8 lines;
-    lines.appendFormat("    Stream[%d]: ZSL\n", mId);
-    write(fd, lines.string(), lines.size());
-
-    Camera3IOStreamBase::dump(fd, args);
-
-    lines = String8();
-    lines.appendFormat("      Input buffers pending: %zu, in flight %zu\n",
-            mInputBufferQueue.size(), mBuffersInFlight.size());
-    write(fd, lines.string(), lines.size());
-}
-
-status_t Camera3ZslStream::enqueueInputBufferByTimestamp(
-        nsecs_t timestamp,
-        nsecs_t* actualTimestamp) {
-
-    Mutex::Autolock l(mLock);
-
-    TimestampFinder timestampFinder = TimestampFinder(timestamp);
-
-    sp<RingBufferConsumer::PinnedBufferItem> pinnedBuffer =
-            mProducer->pinSelectedBuffer(timestampFinder,
-                                        /*waitForFence*/false);
-
-    if (pinnedBuffer == 0) {
-        ALOGE("%s: No ZSL buffers were available yet", __FUNCTION__);
-        return NO_BUFFER_AVAILABLE;
-    }
-
-    nsecs_t actual = pinnedBuffer->getBufferItem().mTimestamp;
-
-    if (actual != timestamp) {
-        // TODO: this is problematic, we'll end up with using wrong result for this pinned buffer.
-        ALOGW("%s: ZSL buffer candidate search didn't find an exact match --"
-              " requested timestamp = %" PRId64 ", actual timestamp = %" PRId64,
-              __FUNCTION__, timestamp, actual);
-    }
-
-    mInputBufferQueue.push_back(pinnedBuffer);
-
-    if (actualTimestamp != NULL) {
-        *actualTimestamp = actual;
-    }
-
-    return OK;
-}
-
-status_t Camera3ZslStream::clearInputRingBuffer(nsecs_t* latestTimestamp) {
-    Mutex::Autolock l(mLock);
-
-    return clearInputRingBufferLocked(latestTimestamp);
-}
-
-status_t Camera3ZslStream::clearInputRingBufferLocked(nsecs_t* latestTimestamp) {
-
-    if (latestTimestamp) {
-        *latestTimestamp = mProducer->getLatestTimestamp();
-    }
-    mInputBufferQueue.clear();
-
-    return mProducer->clear();
-}
-
-status_t Camera3ZslStream::disconnectLocked() {
-    clearInputRingBufferLocked(NULL);
-
-    return Camera3OutputStream::disconnectLocked();
-}
-
-status_t Camera3ZslStream::setTransform(int /*transform*/) {
-    ALOGV("%s: Not implemented", __FUNCTION__);
-    return INVALID_OPERATION;
-}
-
-}; // namespace camera3
-
-}; // namespace android
diff --git a/services/camera/libcameraservice/device3/Camera3ZslStream.h b/services/camera/libcameraservice/device3/Camera3ZslStream.h
deleted file mode 100644
index 12369cf..0000000
--- a/services/camera/libcameraservice/device3/Camera3ZslStream.h
+++ /dev/null
@@ -1,112 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_SERVERS_CAMERA3_ZSL_STREAM_H
-#define ANDROID_SERVERS_CAMERA3_ZSL_STREAM_H
-
-#include <utils/RefBase.h>
-#include <gui/Surface.h>
-#include <gui/RingBufferConsumer.h>
-
-#include "Camera3OutputStream.h"
-
-namespace android {
-
-namespace camera3 {
-
-/**
- * A class for managing a single opaque ZSL stream to/from the camera device.
- * This acts as a bidirectional stream at the HAL layer, caching and discarding
- * most output buffers, and when directed, pushes a buffer back to the HAL for
- * processing.
- */
-class Camera3ZslStream :
-        public Camera3OutputStream {
-  public:
-    /**
-     * Set up a ZSL stream of a given resolution. bufferCount is the number of buffers
-     * cached within the stream that can be retrieved for input.
-     */
-    Camera3ZslStream(int id, uint32_t width, uint32_t height, int bufferCount);
-    ~Camera3ZslStream();
-
-    virtual void     dump(int fd, const Vector<String16> &args) const;
-
-    enum { NO_BUFFER_AVAILABLE = BufferQueue::NO_BUFFER_AVAILABLE };
-
-    /**
-     * Locate a buffer matching this timestamp in the RingBufferConsumer,
-     * and mark it to be queued at the next getInputBufferLocked invocation.
-     *
-     * Errors: Returns NO_BUFFER_AVAILABLE if we could not find a match.
-     *
-     */
-    status_t enqueueInputBufferByTimestamp(nsecs_t timestamp,
-                                           nsecs_t* actualTimestamp);
-
-    /**
-     * Clears the buffers that can be used by enqueueInputBufferByTimestamp
-     * latestTimestamp will be filled with the largest timestamp of buffers
-     * being cleared, 0 if there is no buffer being clear.
-     */
-    status_t clearInputRingBuffer(nsecs_t* latestTimestamp);
-
-  protected:
-
-    /**
-     * Camera3OutputStreamInterface implementation
-     */
-    status_t setTransform(int transform);
-
-  private:
-
-    // Input buffers pending to be queued into HAL
-    List<sp<RingBufferConsumer::PinnedBufferItem> > mInputBufferQueue;
-    sp<RingBufferConsumer>                          mProducer;
-
-    // Input buffers in flight to HAL
-    Vector<sp<RingBufferConsumer::PinnedBufferItem> > mBuffersInFlight;
-
-    /**
-     * Camera3Stream interface
-     */
-
-    // getInputBuffer/returnInputBuffer operate the input stream side of the
-    // ZslStream.
-    virtual status_t getInputBufferLocked(camera3_stream_buffer *buffer);
-    virtual status_t returnInputBufferLocked(
-            const camera3_stream_buffer &buffer);
-
-    // Actual body to return either input or output buffers
-    virtual status_t returnBufferCheckedLocked(
-            const camera3_stream_buffer &buffer,
-            nsecs_t timestamp,
-            bool output,
-            /*out*/
-            sp<Fence> *releaseFenceOut);
-
-    // Disconnet the Camera3ZslStream specific bufferQueues.
-    virtual status_t disconnectLocked();
-
-    status_t clearInputRingBufferLocked(nsecs_t* latestTimestamp);
-
-}; // class Camera3ZslStream
-
-}; // namespace camera3
-
-}; // namespace android
-
-#endif
diff --git a/services/camera/libcameraservice/utils/ClientManager.h b/services/camera/libcameraservice/utils/ClientManager.h
index 830c50b..d7135f1 100644
--- a/services/camera/libcameraservice/utils/ClientManager.h
+++ b/services/camera/libcameraservice/utils/ClientManager.h
@@ -31,6 +31,43 @@
 namespace android {
 namespace resource_policy {
 
+class ClientPriority {
+public:
+    ClientPriority(int32_t score, int32_t state) :
+        mScore(score), mState(state) {}
+
+    int32_t getScore() const { return mScore; }
+    int32_t getState() const { return mState; }
+
+    bool operator==(const ClientPriority& rhs) const {
+        return (this->mScore == rhs.mScore) && (this->mState == rhs.mState);
+    }
+
+    bool operator< (const ClientPriority& rhs)  const {
+        if (this->mScore == rhs.mScore) {
+            return this->mState < rhs.mState;
+        } else {
+            return this->mScore < rhs.mScore;
+        }
+    }
+
+    bool operator> (const ClientPriority& rhs) const {
+        return rhs < *this;
+    }
+
+    bool operator<=(const ClientPriority& rhs) const {
+        return !(*this > rhs);
+    }
+
+    bool operator>=(const ClientPriority& rhs) const {
+        return !(*this < rhs);
+    }
+
+private:
+        int32_t mScore;
+        int32_t mState;
+};
+
 // --------------------------------------------------------------------------------
 
 /**
@@ -45,9 +82,9 @@
 class ClientDescriptor final {
 public:
     ClientDescriptor(const KEY& key, const VALUE& value, int32_t cost,
-            const std::set<KEY>& conflictingKeys, int32_t priority, int32_t ownerId);
+            const std::set<KEY>& conflictingKeys, int32_t score, int32_t ownerId, int32_t state);
     ClientDescriptor(KEY&& key, VALUE&& value, int32_t cost, std::set<KEY>&& conflictingKeys,
-            int32_t priority, int32_t ownerId);
+            int32_t score, int32_t ownerId, int32_t state);
 
     ~ClientDescriptor();
 
@@ -69,7 +106,7 @@
     /**
      * Return the priority for this descriptor.
      */
-    int32_t getPriority() const;
+    const ClientPriority &getPriority() const;
 
     /**
      * Return the owner ID for this descriptor.
@@ -89,7 +126,7 @@
     /**
      * Set the proirity for this descriptor.
      */
-    void setPriority(int32_t priority);
+    void setPriority(const ClientPriority& priority);
 
     // This class is ordered by key
     template<class K, class V>
@@ -100,7 +137,7 @@
     VALUE mValue;
     int32_t mCost;
     std::set<KEY> mConflicting;
-    int32_t mPriority;
+    ClientPriority mPriority;
     int32_t mOwnerId;
 }; // class ClientDescriptor
 
@@ -111,16 +148,17 @@
 
 template<class KEY, class VALUE>
 ClientDescriptor<KEY, VALUE>::ClientDescriptor(const KEY& key, const VALUE& value, int32_t cost,
-        const std::set<KEY>& conflictingKeys, int32_t priority, int32_t ownerId) : mKey{key},
-        mValue{value}, mCost{cost}, mConflicting{conflictingKeys}, mPriority{priority},
+        const std::set<KEY>& conflictingKeys, int32_t score, int32_t ownerId, int32_t state) :
+        mKey{key}, mValue{value}, mCost{cost}, mConflicting{conflictingKeys},
+        mPriority(score, state),
         mOwnerId{ownerId} {}
 
 template<class KEY, class VALUE>
 ClientDescriptor<KEY, VALUE>::ClientDescriptor(KEY&& key, VALUE&& value, int32_t cost,
-        std::set<KEY>&& conflictingKeys, int32_t priority, int32_t ownerId) :
+        std::set<KEY>&& conflictingKeys, int32_t score, int32_t ownerId, int32_t state) :
         mKey{std::forward<KEY>(key)}, mValue{std::forward<VALUE>(value)}, mCost{cost},
-        mConflicting{std::forward<std::set<KEY>>(conflictingKeys)}, mPriority{priority},
-        mOwnerId{ownerId} {}
+        mConflicting{std::forward<std::set<KEY>>(conflictingKeys)},
+        mPriority(score, state), mOwnerId{ownerId} {}
 
 template<class KEY, class VALUE>
 ClientDescriptor<KEY, VALUE>::~ClientDescriptor() {}
@@ -141,7 +179,7 @@
 }
 
 template<class KEY, class VALUE>
-int32_t ClientDescriptor<KEY, VALUE>::getPriority() const {
+const ClientPriority& ClientDescriptor<KEY, VALUE>::getPriority() const {
     return mPriority;
 }
 
@@ -165,7 +203,7 @@
 }
 
 template<class KEY, class VALUE>
-void ClientDescriptor<KEY, VALUE>::setPriority(int32_t priority) {
+void ClientDescriptor<KEY, VALUE>::setPriority(const ClientPriority& priority) {
     mPriority = priority;
 }
 
@@ -231,7 +269,7 @@
      * Given a map containing owner (pid) -> priority mappings, update the priority of each
      * ClientDescriptor with an owner in this mapping.
      */
-    void updatePriorities(const std::map<int32_t,int32_t>& ownerPriorityList);
+    void updatePriorities(const std::map<int32_t,ClientPriority>& ownerPriorityList);
 
     /**
      * Remove all ClientDescriptors.
@@ -383,17 +421,17 @@
 
     const KEY& key = client->getKey();
     int32_t cost = client->getCost();
-    int32_t priority = client->getPriority();
+    ClientPriority priority = client->getPriority();
     int32_t owner = client->getOwnerId();
 
     int64_t totalCost = getCurrentCostLocked() + cost;
 
     // Determine the MRU of the owners tied for having the highest priority
     int32_t highestPriorityOwner = owner;
-    int32_t highestPriority = priority;
+    ClientPriority highestPriority = priority;
     for (const auto& i : mClients) {
-        int32_t curPriority = i->getPriority();
-        if (curPriority >= highestPriority) {
+        ClientPriority curPriority = i->getPriority();
+        if (curPriority <= highestPriority) {
             highestPriority = curPriority;
             highestPriorityOwner = i->getOwnerId();
         }
@@ -408,7 +446,7 @@
     for (const auto& i : mClients) {
         const KEY& curKey = i->getKey();
         int32_t curCost = i->getCost();
-        int32_t curPriority = i->getPriority();
+        ClientPriority curPriority = i->getPriority();
         int32_t curOwner = i->getOwnerId();
 
         bool conflicting = (curKey == key || i->isConflicting(key) ||
@@ -417,13 +455,13 @@
         if (!returnIncompatibleClients) {
             // Find evicted clients
 
-            if (conflicting && curPriority > priority) {
+            if (conflicting && curPriority < priority) {
                 // Pre-existing conflicting client with higher priority exists
                 evictList.clear();
                 evictList.push_back(client);
                 return evictList;
             } else if (conflicting || ((totalCost > mMaxCost && curCost > 0) &&
-                    (curPriority <= priority) &&
+                    (curPriority >= priority) &&
                     !(highestPriorityOwner == owner && owner == curOwner))) {
                 // Add a pre-existing client to the eviction list if:
                 // - We are adding a client with higher priority that conflicts with this one.
@@ -437,7 +475,7 @@
         } else {
             // Find clients preventing the incoming client from being added
 
-            if (curPriority > priority && (conflicting || (totalCost > mMaxCost && curCost > 0))) {
+            if (curPriority < priority && (conflicting || (totalCost > mMaxCost && curCost > 0))) {
                 // Pre-existing conflicting client with higher priority exists
                 evictList.push_back(i);
             }
@@ -524,7 +562,7 @@
 
 template<class KEY, class VALUE, class LISTENER>
 void ClientManager<KEY, VALUE, LISTENER>::updatePriorities(
-        const std::map<int32_t,int32_t>& ownerPriorityList) {
+        const std::map<int32_t,ClientPriority>& ownerPriorityList) {
     Mutex::Autolock lock(mLock);
     for (auto& i : mClients) {
         auto j = ownerPriorityList.find(i->getOwnerId());
diff --git a/services/mediacodec/minijail/seccomp_policy/mediacodec-seccomp-arm.policy b/services/mediacodec/minijail/seccomp_policy/mediacodec-seccomp-arm.policy
index b7603bc..a8f2ca9 100644
--- a/services/mediacodec/minijail/seccomp_policy/mediacodec-seccomp-arm.policy
+++ b/services/mediacodec/minijail/seccomp_policy/mediacodec-seccomp-arm.policy
@@ -50,6 +50,7 @@
 sched_setscheduler: 1
 fstatat64: 1
 ugetrlimit: 1
+getdents64: 1
 
 # for attaching to debuggerd on process crash
 sigaction: 1
diff --git a/services/mediadrm/Android.mk b/services/mediadrm/Android.mk
index 2bf2201..b5831ae 100644
--- a/services/mediadrm/Android.mk
+++ b/services/mediadrm/Android.mk
@@ -24,8 +24,9 @@
     libbinder \
     liblog \
     libmediadrm \
+    libhidltransport \
     libutils
-ifeq ($(ENABLE_TREBLE), true)
+ifneq ($(DISABLE_TREBLE_DRM), true)
 LOCAL_SHARED_LIBRARIES += \
     libhidlbase \
     libhidlmemory \
@@ -34,8 +35,8 @@
 endif
 
 LOCAL_CFLAGS += -Wall -Wextra -Werror
-ifeq ($(ENABLE_TREBLE), true)
-LOCAL_CFLAGS += -DENABLE_TREBLE=1
+ifeq ($(DISABLE_TREBLE_DRM), true)
+LOCAL_CFLAGS += -DDISABLE_TREBLE_DRM=1
 endif
 
 LOCAL_MODULE:= mediadrmserver
diff --git a/services/mediadrm/MediaDrmService.cpp b/services/mediadrm/MediaDrmService.cpp
index e579dd8..b9ec347 100644
--- a/services/mediadrm/MediaDrmService.cpp
+++ b/services/mediadrm/MediaDrmService.cpp
@@ -24,12 +24,12 @@
 #include <binder/IServiceManager.h>
 #include <utils/Log.h>
 
-#ifdef ENABLE_TREBLE
-#include <media/CryptoHal.h>
-#include <media/DrmHal.h>
-#else
+#ifdef DISABLE_TREBLE_DRM
 #include <media/Crypto.h>
 #include <media/Drm.h>
+#else
+#include <media/CryptoHal.h>
+#include <media/DrmHal.h>
 #endif
 
 namespace android {
@@ -40,18 +40,18 @@
 }
 
 sp<ICrypto> MediaDrmService::makeCrypto() {
-#ifdef ENABLE_TREBLE
-    return new CryptoHal;
-#else
+#ifdef DISABLE_TREBLE_DRM
     return new Crypto;
+#else
+    return new CryptoHal;
 #endif
 }
 
 sp<IDrm> MediaDrmService::makeDrm() {
-#ifdef ENABLE_TREBLE
-    return new DrmHal;
-#else
+#ifdef DISABLE_TREBLE_DRM
     return new Drm;
+#else
+    return new DrmHal;
 #endif
 }
 
diff --git a/services/oboeservice/AAudioServiceStreamFakeHal.cpp b/services/oboeservice/AAudioServiceStreamFakeHal.cpp
index 627a504..1caeb3f 100644
--- a/services/oboeservice/AAudioServiceStreamFakeHal.cpp
+++ b/services/oboeservice/AAudioServiceStreamFakeHal.cpp
@@ -53,13 +53,14 @@
 }
 
 aaudio_result_t AAudioServiceStreamFakeHal::open(aaudio::AAudioStreamRequest &request,
-                                             aaudio::AAudioStreamConfiguration &configuration) {
+                                       aaudio::AAudioStreamConfiguration &configurationOutput) {
     // Open stream on HAL and pass information about the ring buffer to the client.
     mmap_buffer_info mmapInfo;
     aaudio_result_t error;
 
     // Open HAL
-    error = fake_hal_open(CARD_ID, DEVICE_ID, &mStreamId);
+    int bufferCapacity = request.getConfiguration().getBufferCapacity();
+    error = fake_hal_open(CARD_ID, DEVICE_ID, bufferCapacity, &mStreamId);
     if(error < 0) {
         ALOGE("Could not open card %d, device %d", CARD_ID, DEVICE_ID);
         return error;
@@ -87,9 +88,9 @@
          mmapInfo.buffer_capacity_in_bytes);
 
     // Fill in AAudioStreamConfiguration
-    configuration.setSampleRate(mSampleRate);
-    configuration.setSamplesPerFrame(mmapInfo.channel_count);
-    configuration.setAudioFormat(AAUDIO_FORMAT_PCM_I16);
+    configurationOutput.setSampleRate(mSampleRate);
+    configurationOutput.setSamplesPerFrame(mmapInfo.channel_count);
+    configurationOutput.setAudioFormat(AAUDIO_FORMAT_PCM_I16);
 
     return AAUDIO_OK;
 }
diff --git a/services/oboeservice/AAudioServiceStreamFakeHal.h b/services/oboeservice/AAudioServiceStreamFakeHal.h
index 170d0ee..e9480fb 100644
--- a/services/oboeservice/AAudioServiceStreamFakeHal.h
+++ b/services/oboeservice/AAudioServiceStreamFakeHal.h
@@ -37,7 +37,7 @@
     virtual aaudio_result_t getDescription(AudioEndpointParcelable &parcelable) override;
 
     virtual aaudio_result_t open(aaudio::AAudioStreamRequest &request,
-                               aaudio::AAudioStreamConfiguration &configuration) override;
+                                 aaudio::AAudioStreamConfiguration &configurationOutput) override;
 
     /**
      * Start the flow of data.
diff --git a/services/oboeservice/Android.mk b/services/oboeservice/Android.mk
index 68e43ed..5cd9121 100644
--- a/services/oboeservice/Android.mk
+++ b/services/oboeservice/Android.mk
@@ -3,28 +3,28 @@
 # AAudio Service
 include $(CLEAR_VARS)
 
-LOCAL_MODULE := oboeservice
+LOCAL_MODULE := aaudioservice
 LOCAL_MODULE_TAGS := optional
 
-LIBAAUDIO_DIR := ../../media/liboboe
+LIBAAUDIO_DIR := ../../media/libaaudio
 LIBAAUDIO_SRC_DIR := $(LIBAAUDIO_DIR)/src
 
 LOCAL_C_INCLUDES := \
     $(call include-path-for, audio-utils) \
     frameworks/native/include \
     system/core/base/include \
-    $(TOP)/frameworks/native/media/liboboe/include/include \
-    $(TOP)/frameworks/av/media/liboboe/include \
+    $(TOP)/frameworks/native/media/libaaudio/include/include \
+    $(TOP)/frameworks/av/media/libaaudio/include \
     frameworks/native/include \
     $(TOP)/external/tinyalsa/include \
-    $(TOP)/frameworks/av/media/liboboe/src \
-    $(TOP)/frameworks/av/media/liboboe/src/binding \
-    $(TOP)/frameworks/av/media/liboboe/src/client \
-    $(TOP)/frameworks/av/media/liboboe/src/core \
-    $(TOP)/frameworks/av/media/liboboe/src/fifo \
-    $(TOP)/frameworks/av/media/liboboe/src/utility
+    $(TOP)/frameworks/av/media/libaaudio/src \
+    $(TOP)/frameworks/av/media/libaaudio/src/binding \
+    $(TOP)/frameworks/av/media/libaaudio/src/client \
+    $(TOP)/frameworks/av/media/libaaudio/src/core \
+    $(TOP)/frameworks/av/media/libaaudio/src/fifo \
+    $(TOP)/frameworks/av/media/libaaudio/src/utility
 
-# TODO These could be in a liboboe_common library
+# TODO These could be in a libaaudio_common library
 LOCAL_SRC_FILES += \
     $(LIBAAUDIO_SRC_DIR)/utility/HandleTracker.cpp \
     $(LIBAAUDIO_SRC_DIR)/utility/AAudioUtilities.cpp \
diff --git a/services/oboeservice/FakeAudioHal.cpp b/services/oboeservice/FakeAudioHal.cpp
index cf0dc86..34a2476 100644
--- a/services/oboeservice/FakeAudioHal.cpp
+++ b/services/oboeservice/FakeAudioHal.cpp
@@ -94,14 +94,25 @@
 #define FRAMES_PER_BURST_QUALCOMM 192
 #define FRAMES_PER_BURST_NVIDIA   128
 
-int fake_hal_open(int card_id, int device_id, fake_hal_stream_ptr *streamPP) {
+int fake_hal_open(int card_id, int device_id,
+                  int frameCapacity,
+                  fake_hal_stream_ptr *streamPP) {
     int framesPerBurst = FRAMES_PER_BURST_QUALCOMM; // TODO update as needed
+    int periodCountRequested = frameCapacity / framesPerBurst;
     int periodCount = 32;
     unsigned int offset1;
     unsigned int frames1;
     void *area = nullptr;
     int mmapAvail = 0;
 
+    // Try to match requested size with a power of 2.
+    while (periodCount < periodCountRequested && periodCount < 1024) {
+        periodCount *= 2;
+    }
+    std::cout << "fake_hal_open() requested frameCapacity = " << frameCapacity << std::endl;
+    std::cout << "fake_hal_open() periodCountRequested = " << periodCountRequested << std::endl;
+    std::cout << "fake_hal_open() periodCount = " << periodCount << std::endl;
+
     // Configuration for an ALSA stream.
     pcm_config cfg;
     memset(&cfg, 0, sizeof(cfg));
diff --git a/services/oboeservice/FakeAudioHal.h b/services/oboeservice/FakeAudioHal.h
index f47ccd9..d3aa4e8 100644
--- a/services/oboeservice/FakeAudioHal.h
+++ b/services/oboeservice/FakeAudioHal.h
@@ -39,7 +39,9 @@
 //extern "C"
 //{
 
-int fake_hal_open(int card_id, int device_id, fake_hal_stream_ptr *stream_pp);
+int fake_hal_open(int card_id, int device_id,
+                  int frameCapacity,
+                  fake_hal_stream_ptr *stream_pp);
 
 int fake_hal_get_mmap_info(fake_hal_stream_ptr stream, mmap_buffer_info *info);
 
diff --git a/services/radio/RadioService.cpp b/services/radio/RadioService.cpp
index a73ed8f..f7a73c3 100644
--- a/services/radio/RadioService.cpp
+++ b/services/radio/RadioService.cpp
@@ -68,10 +68,11 @@
     radio_properties_t properties;
     properties.handle =
             (radio_handle_t)android_atomic_inc(&mNextUniqueId);
-
-    ALOGI("loaded default module %s, handle %d", properties.product, properties.handle);
-
     convertProperties(&properties, &halProperties);
+
+    ALOGI("loaded default module %s, ver %s, handle %d", properties.product,
+        properties.version, properties.handle);
+
     sp<Module> module = new Module(dev, properties);
     mModules.add(properties.handle, module);
 }
diff --git a/services/soundtrigger/SoundTriggerHwService.cpp b/services/soundtrigger/SoundTriggerHwService.cpp
index 54f9b95..78845b7 100644
--- a/services/soundtrigger/SoundTriggerHwService.cpp
+++ b/services/soundtrigger/SoundTriggerHwService.cpp
@@ -923,7 +923,10 @@
 
 void SoundTriggerHwService::ModuleClient::onFirstRef()
 {
-    IInterface::asBinder(mClient)->linkToDeath(this);
+    sp<IBinder> binder = IInterface::asBinder(mClient);
+    if (binder != 0) {
+        binder->linkToDeath(this);
+    }
 }
 
 SoundTriggerHwService::ModuleClient::~ModuleClient()