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/*
* Copyright (C) 2012 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 "Camera2-CaptureSequencer"
#define ATRACE_TAG ATRACE_TAG_CAMERA
//#define LOG_NDEBUG 0
#include <inttypes.h>
#include <utils/Log.h>
#include <utils/Trace.h>
#include <utils/Vector.h>
#include "api1/Camera2Client.h"
#include "api1/client2/CaptureSequencer.h"
#include "api1/client2/Parameters.h"
#include "api1/client2/ZslProcessor.h"
namespace android {
namespace camera2 {
/** Public members */
CaptureSequencer::CaptureSequencer(wp<Camera2Client> client):
Thread(false),
mStartCapture(false),
mBusy(false),
mNewAEState(false),
mNewFrameReceived(false),
mNewCaptureReceived(false),
mNewCaptureErrorCnt(0),
mShutterNotified(false),
mHalNotifiedShutter(false),
mShutterCaptureId(-1),
mClient(client),
mCaptureState(IDLE),
mStateTransitionCount(0),
mTriggerId(0),
mTimeoutCount(0),
mCaptureId(Camera2Client::kCaptureRequestIdStart) {
ALOGV("%s", __FUNCTION__);
}
CaptureSequencer::~CaptureSequencer() {
ALOGV("%s: Exit", __FUNCTION__);
}
void CaptureSequencer::setZslProcessor(const wp<ZslProcessor>& processor) {
Mutex::Autolock l(mInputMutex);
mZslProcessor = processor;
}
status_t CaptureSequencer::startCapture() {
ALOGV("%s", __FUNCTION__);
ATRACE_CALL();
Mutex::Autolock l(mInputMutex);
if (mBusy) {
ALOGE("%s: Already busy capturing!", __FUNCTION__);
return INVALID_OPERATION;
}
if (!mStartCapture) {
mStartCapture = true;
mStartCaptureSignal.signal();
}
return OK;
}
status_t CaptureSequencer::waitUntilIdle(nsecs_t timeout) {
ATRACE_CALL();
ALOGV("%s: Waiting for idle", __FUNCTION__);
Mutex::Autolock l(mStateMutex);
status_t res = -1;
while (mCaptureState != IDLE) {
nsecs_t startTime = systemTime();
res = mStateChanged.waitRelative(mStateMutex, timeout);
if (res != OK) return res;
timeout -= (systemTime() - startTime);
}
ALOGV("%s: Now idle", __FUNCTION__);
return OK;
}
void CaptureSequencer::notifyAutoExposure(uint8_t newState, int triggerId) {
ATRACE_CALL();
Mutex::Autolock l(mInputMutex);
mAEState = newState;
mAETriggerId = triggerId;
if (!mNewAEState) {
mNewAEState = true;
mNewNotifySignal.signal();
}
}
void CaptureSequencer::notifyShutter(const CaptureResultExtras& resultExtras,
nsecs_t timestamp) {
ATRACE_CALL();
(void) timestamp;
Mutex::Autolock l(mInputMutex);
if (!mHalNotifiedShutter && resultExtras.requestId == mShutterCaptureId) {
mHalNotifiedShutter = true;
mShutterNotifySignal.signal();
}
}
void CaptureSequencer::notifyError(int32_t errorCode, const CaptureResultExtras& resultExtras) {
ATRACE_CALL();
bool jpegBufferLost = false;
if (errorCode == hardware::camera2::ICameraDeviceCallbacks::ERROR_CAMERA_BUFFER) {
sp<Camera2Client> client = mClient.promote();
if (client == nullptr) {
return;
}
int captureStreamId = client->getCaptureStreamId();
if (captureStreamId == resultExtras.errorStreamId) {
jpegBufferLost = true;
}
} else if (errorCode ==
hardware::camera2::ICameraDeviceCallbacks::ERROR_CAMERA_REQUEST) {
if (resultExtras.requestId == mShutterCaptureId) {
jpegBufferLost = true;
}
}
if (jpegBufferLost) {
sp<MemoryBase> emptyBuffer;
onCaptureAvailable(/*timestamp*/0, emptyBuffer, /*captureError*/true);
}
}
void CaptureSequencer::onResultAvailable(const CaptureResult &result) {
ATRACE_CALL();
ALOGV("%s: New result available.", __FUNCTION__);
Mutex::Autolock l(mInputMutex);
mNewFrameId = result.mResultExtras.requestId;
mNewFrame = result.mMetadata;
if (!mNewFrameReceived) {
mNewFrameReceived = true;
mNewFrameSignal.signal();
}
}
void CaptureSequencer::onCaptureAvailable(nsecs_t timestamp,
const sp<MemoryBase>& captureBuffer, bool captureError) {
ATRACE_CALL();
ALOGV("%s", __FUNCTION__);
Mutex::Autolock l(mInputMutex);
mCaptureTimestamp = timestamp;
mCaptureBuffer = captureBuffer;
if (!mNewCaptureReceived) {
mNewCaptureReceived = true;
if (captureError) {
mNewCaptureErrorCnt++;
} else {
mNewCaptureErrorCnt = 0;
}
mNewCaptureSignal.signal();
}
}
void CaptureSequencer::dump(int fd, const Vector<String16>& /*args*/) {
String8 result;
if (mCaptureRequest.entryCount() != 0) {
result = " Capture request:\n";
write(fd, result.string(), result.size());
mCaptureRequest.dump(fd, 2, 6);
} else {
result = " Capture request: undefined\n";
write(fd, result.string(), result.size());
}
result = String8::format(" Current capture state: %s\n",
kStateNames[mCaptureState]);
result.append(" Latest captured frame:\n");
write(fd, result.string(), result.size());
mNewFrame.dump(fd, 2, 6);
}
/** Private members */
const char* CaptureSequencer::kStateNames[CaptureSequencer::NUM_CAPTURE_STATES+1] =
{
"IDLE",
"START",
"ZSL_START",
"ZSL_WAITING",
"ZSL_REPROCESSING",
"STANDARD_START",
"STANDARD_PRECAPTURE_WAIT",
"STANDARD_CAPTURE",
"STANDARD_CAPTURE_WAIT",
"DONE",
"ERROR",
"UNKNOWN"
};
const CaptureSequencer::StateManager
CaptureSequencer::kStateManagers[CaptureSequencer::NUM_CAPTURE_STATES-1] = {
&CaptureSequencer::manageIdle,
&CaptureSequencer::manageStart,
&CaptureSequencer::manageZslStart,
&CaptureSequencer::manageZslWaiting,
&CaptureSequencer::manageZslReprocessing,
&CaptureSequencer::manageStandardStart,
&CaptureSequencer::manageStandardPrecaptureWait,
&CaptureSequencer::manageStandardCapture,
&CaptureSequencer::manageStandardCaptureWait,
&CaptureSequencer::manageDone,
};
bool CaptureSequencer::threadLoop() {
sp<Camera2Client> client = mClient.promote();
if (client == 0) return false;
CaptureState currentState;
{
Mutex::Autolock l(mStateMutex);
currentState = mCaptureState;
}
currentState = (this->*kStateManagers[currentState])(client);
Mutex::Autolock l(mStateMutex);
if (currentState != mCaptureState) {
if (mCaptureState != IDLE) {
ATRACE_ASYNC_END(kStateNames[mCaptureState], mStateTransitionCount);
}
mCaptureState = currentState;
mStateTransitionCount++;
if (mCaptureState != IDLE) {
ATRACE_ASYNC_BEGIN(kStateNames[mCaptureState], mStateTransitionCount);
}
ALOGV("Camera %d: New capture state %s",
client->getCameraId(), kStateNames[mCaptureState]);
mStateChanged.signal();
}
if (mCaptureState == ERROR) {
ALOGE("Camera %d: Stopping capture sequencer due to error",
client->getCameraId());
return false;
}
return true;
}
CaptureSequencer::CaptureState CaptureSequencer::manageIdle(
sp<Camera2Client> &/*client*/) {
status_t res;
Mutex::Autolock l(mInputMutex);
while (!mStartCapture) {
res = mStartCaptureSignal.waitRelative(mInputMutex,
kIdleWaitDuration);
if (res == TIMED_OUT) break;
}
if (mStartCapture) {
mStartCapture = false;
mBusy = true;
return START;
}
return IDLE;
}
CaptureSequencer::CaptureState CaptureSequencer::manageDone(sp<Camera2Client> &client) {
status_t res = OK;
ATRACE_CALL();
mCaptureId++;
if (mCaptureId >= Camera2Client::kCaptureRequestIdEnd) {
mCaptureId = Camera2Client::kCaptureRequestIdStart;
}
{
Mutex::Autolock l(mInputMutex);
mBusy = false;
}
int takePictureCounter = 0;
{
SharedParameters::Lock l(client->getParameters());
switch (l.mParameters.state) {
case Parameters::DISCONNECTED:
ALOGW("%s: Camera %d: Discarding image data during shutdown ",
__FUNCTION__, client->getCameraId());
res = INVALID_OPERATION;
break;
case Parameters::STILL_CAPTURE:
res = client->getCameraDevice()->waitUntilDrained();
if (res != OK) {
ALOGE("%s: Camera %d: Can't idle after still capture: "
"%s (%d)", __FUNCTION__, client->getCameraId(),
strerror(-res), res);
}
l.mParameters.state = Parameters::STOPPED;
break;
case Parameters::VIDEO_SNAPSHOT:
l.mParameters.state = Parameters::RECORD;
break;
default:
ALOGE("%s: Camera %d: Still image produced unexpectedly "
"in state %s!",
__FUNCTION__, client->getCameraId(),
Parameters::getStateName(l.mParameters.state));
res = INVALID_OPERATION;
}
takePictureCounter = l.mParameters.takePictureCounter;
}
sp<ZslProcessor> processor = mZslProcessor.promote();
if (processor != 0) {
ALOGV("%s: Memory optimization, clearing ZSL queue",
__FUNCTION__);
processor->clearZslQueue();
}
/**
* Fire the jpegCallback in Camera#takePicture(..., jpegCallback)
*/
if (mCaptureBuffer != 0 && res == OK) {
ATRACE_ASYNC_END(Camera2Client::kTakepictureLabel, takePictureCounter);
Camera2Client::SharedCameraCallbacks::Lock
l(client->mSharedCameraCallbacks);
ALOGV("%s: Sending still image to client", __FUNCTION__);
if (l.mRemoteCallback != 0) {
l.mRemoteCallback->dataCallback(CAMERA_MSG_COMPRESSED_IMAGE,
mCaptureBuffer, NULL);
} else {
ALOGV("%s: No client!", __FUNCTION__);
}
}
mCaptureBuffer.clear();
return IDLE;
}
CaptureSequencer::CaptureState CaptureSequencer::manageStart(
sp<Camera2Client> &client) {
ALOGV("%s", __FUNCTION__);
status_t res;
ATRACE_CALL();
SharedParameters::Lock l(client->getParameters());
CaptureState nextState = DONE;
res = updateCaptureRequest(l.mParameters, client);
if (res != OK ) {
ALOGE("%s: Camera %d: Can't update still image capture request: %s (%d)",
__FUNCTION__, client->getCameraId(), strerror(-res), res);
return DONE;
}
else if (l.mParameters.useZeroShutterLag() &&
l.mParameters.state == Parameters::STILL_CAPTURE &&
l.mParameters.flashMode != Parameters::FLASH_MODE_ON) {
nextState = ZSL_START;
} else {
nextState = STANDARD_START;
}
{
Mutex::Autolock l(mInputMutex);
mShutterCaptureId = mCaptureId;
mHalNotifiedShutter = false;
}
mShutterNotified = false;
return nextState;
}
CaptureSequencer::CaptureState CaptureSequencer::manageZslStart(
sp<Camera2Client> &client) {
ALOGV("%s", __FUNCTION__);
status_t res;
sp<ZslProcessor> processor = mZslProcessor.promote();
if (processor == 0) {
ALOGE("%s: No ZSL queue to use!", __FUNCTION__);
return DONE;
}
// We don't want to get partial results for ZSL capture.
client->registerFrameListener(mCaptureId, mCaptureId + 1,
this,
/*sendPartials*/false);
// TODO: Actually select the right thing here.
res = processor->pushToReprocess(mCaptureId);
if (res != OK) {
if (res == NOT_ENOUGH_DATA) {
ALOGV("%s: Camera %d: ZSL queue doesn't have good frame, "
"falling back to normal capture", __FUNCTION__,
client->getCameraId());
} else {
ALOGE("%s: Camera %d: Error in ZSL queue: %s (%d)",
__FUNCTION__, client->getCameraId(), strerror(-res), res);
}
return STANDARD_START;
}
SharedParameters::Lock l(client->getParameters());
/* warning: this also locks a SharedCameraCallbacks */
shutterNotifyLocked(l.mParameters, client);
mShutterNotified = true;
mTimeoutCount = kMaxTimeoutsForCaptureEnd;
return STANDARD_CAPTURE_WAIT;
}
CaptureSequencer::CaptureState CaptureSequencer::manageZslWaiting(
sp<Camera2Client> &/*client*/) {
ALOGV("%s", __FUNCTION__);
return DONE;
}
CaptureSequencer::CaptureState CaptureSequencer::manageZslReprocessing(
sp<Camera2Client> &/*client*/) {
ALOGV("%s", __FUNCTION__);
return START;
}
CaptureSequencer::CaptureState CaptureSequencer::manageStandardStart(
sp<Camera2Client> &client) {
ATRACE_CALL();
bool isAeConverged = false;
// Get the onFrameAvailable callback when the requestID == mCaptureId
// We don't want to get partial results for normal capture, as we need
// Get ANDROID_SENSOR_TIMESTAMP from the capture result, but partial
// result doesn't have to have this metadata available.
// TODO: Update to use the HALv3 shutter notification for remove the
// need for this listener and make it faster. see bug 12530628.
client->registerFrameListener(mCaptureId, mCaptureId + 1,
this,
/*sendPartials*/false);
{
Mutex::Autolock l(mInputMutex);
isAeConverged = (mAEState == ANDROID_CONTROL_AE_STATE_CONVERGED);
}
{
SharedParameters::Lock l(client->getParameters());
// Skip AE precapture when it is already converged and not in force flash mode.
if (l.mParameters.flashMode != Parameters::FLASH_MODE_ON && isAeConverged) {
return STANDARD_CAPTURE;
}
mTriggerId = l.mParameters.precaptureTriggerCounter++;
}
client->getCameraDevice()->triggerPrecaptureMetering(mTriggerId);
mAeInPrecapture = false;
mTimeoutCount = kMaxTimeoutsForPrecaptureStart;
return STANDARD_PRECAPTURE_WAIT;
}
CaptureSequencer::CaptureState CaptureSequencer::manageStandardPrecaptureWait(
sp<Camera2Client> &/*client*/) {
status_t res;
ATRACE_CALL();
Mutex::Autolock l(mInputMutex);
while (!mNewAEState) {
res = mNewNotifySignal.waitRelative(mInputMutex, kWaitDuration);
if (res == TIMED_OUT) {
mTimeoutCount--;
break;
}
}
if (mTimeoutCount <= 0) {
ALOGW("Timed out waiting for precapture %s",
mAeInPrecapture ? "end" : "start");
return STANDARD_CAPTURE;
}
if (mNewAEState) {
if (!mAeInPrecapture) {
// Waiting to see PRECAPTURE state
if (mAETriggerId == mTriggerId) {
if (mAEState == ANDROID_CONTROL_AE_STATE_PRECAPTURE) {
ALOGV("%s: Got precapture start", __FUNCTION__);
mAeInPrecapture = true;
mTimeoutCount = kMaxTimeoutsForPrecaptureEnd;
} else if (mAEState == ANDROID_CONTROL_AE_STATE_CONVERGED ||
mAEState == ANDROID_CONTROL_AE_STATE_FLASH_REQUIRED) {
// It is legal to transit to CONVERGED or FLASH_REQUIRED
// directly after a trigger.
ALOGV("%s: AE is already in good state, start capture", __FUNCTION__);
return STANDARD_CAPTURE;
}
}
} else {
// Waiting to see PRECAPTURE state end
if (mAETriggerId == mTriggerId &&
mAEState != ANDROID_CONTROL_AE_STATE_PRECAPTURE) {
ALOGV("%s: Got precapture end", __FUNCTION__);
return STANDARD_CAPTURE;
}
}
mNewAEState = false;
}
return STANDARD_PRECAPTURE_WAIT;
}
CaptureSequencer::CaptureState CaptureSequencer::manageStandardCapture(
sp<Camera2Client> &client) {
status_t res;
ATRACE_CALL();
SharedParameters::Lock l(client->getParameters());
Vector<int32_t> outputStreams;
/**
* Set up output streams in the request
* - preview
* - capture/jpeg
* - callback (if preview callbacks enabled)
* - recording (if recording enabled)
*/
outputStreams.push(client->getPreviewStreamId());
int captureStreamId = client->getCaptureStreamId();
if (captureStreamId == Camera2Client::NO_STREAM) {
res = client->createJpegStreamL(l.mParameters);
if (res != OK || client->getCaptureStreamId() == Camera2Client::NO_STREAM) {
ALOGE("%s: Camera %d: cannot create jpeg stream for slowJpeg mode: %s (%d)",
__FUNCTION__, client->getCameraId(), strerror(-res), res);
return DONE;
}
}
outputStreams.push(client->getCaptureStreamId());
if (l.mParameters.previewCallbackFlags &
CAMERA_FRAME_CALLBACK_FLAG_ENABLE_MASK) {
outputStreams.push(client->getCallbackStreamId());
}
if (l.mParameters.state == Parameters::VIDEO_SNAPSHOT) {
outputStreams.push(client->getRecordingStreamId());
}
res = mCaptureRequest.update(ANDROID_REQUEST_OUTPUT_STREAMS,
outputStreams);
if (res == OK) {
res = mCaptureRequest.update(ANDROID_REQUEST_ID,
&mCaptureId, 1);
}
if (res == OK) {
res = mCaptureRequest.sort();
}
if (res != OK) {
ALOGE("%s: Camera %d: Unable to set up still capture request: %s (%d)",
__FUNCTION__, client->getCameraId(), strerror(-res), res);
return DONE;
}
// Create a capture copy since CameraDeviceBase#capture takes ownership
CameraMetadata captureCopy = mCaptureRequest;
if (captureCopy.entryCount() == 0) {
ALOGE("%s: Camera %d: Unable to copy capture request for HAL device",
__FUNCTION__, client->getCameraId());
return DONE;
}
if ((l.mParameters.isDeviceZslSupported) && (l.mParameters.state != Parameters::RECORD) &&
(l.mParameters.state != Parameters::VIDEO_SNAPSHOT)) {
// If device ZSL is supported, drop all pending preview buffers to reduce the chance of
// rendering preview frames newer than the still frame.
// Additionally, preview must not get interrupted during video recording.
client->getCameraDevice()->dropStreamBuffers(true, client->getPreviewStreamId());
}
/**
* Clear the streaming request for still-capture pictures
* (as opposed to i.e. video snapshots)
*/
if (l.mParameters.state == Parameters::STILL_CAPTURE) {
// API definition of takePicture() - stop preview before taking pic
res = client->stopStream();
if (res != OK) {
ALOGE("%s: Camera %d: Unable to stop preview for still capture: "
"%s (%d)",
__FUNCTION__, client->getCameraId(), strerror(-res), res);
return DONE;
}
}
// TODO: Capture should be atomic with setStreamingRequest here
res = client->getCameraDevice()->capture(captureCopy);
if (res != OK) {
ALOGE("%s: Camera %d: Unable to submit still image capture request: "
"%s (%d)",
__FUNCTION__, client->getCameraId(), strerror(-res), res);
return DONE;
}
mTimeoutCount = kMaxTimeoutsForCaptureEnd;
return STANDARD_CAPTURE_WAIT;
}
CaptureSequencer::CaptureState CaptureSequencer::manageStandardCaptureWait(
sp<Camera2Client> &client) {
status_t res;
ATRACE_CALL();
Mutex::Autolock l(mInputMutex);
// Wait for shutter callback
while (!mHalNotifiedShutter) {
if (mTimeoutCount <= 0) {
break;
}
res = mShutterNotifySignal.waitRelative(mInputMutex, kWaitDuration);
if (res == TIMED_OUT) {
mTimeoutCount--;
return STANDARD_CAPTURE_WAIT;
}
}
if (mHalNotifiedShutter) {
if (!mShutterNotified) {
SharedParameters::Lock l(client->getParameters());
/* warning: this also locks a SharedCameraCallbacks */
shutterNotifyLocked(l.mParameters, client);
mShutterNotified = true;
}
} else if (mTimeoutCount <= 0) {
ALOGW("Timed out waiting for shutter notification");
return DONE;
}
// Wait for new metadata result (mNewFrame)
while (!mNewFrameReceived) {
res = mNewFrameSignal.waitRelative(mInputMutex, kWaitDuration);
if (res == TIMED_OUT) {
mTimeoutCount--;
break;
}
}
// Wait until jpeg was captured by JpegProcessor
while (mNewFrameReceived && !mNewCaptureReceived) {
res = mNewCaptureSignal.waitRelative(mInputMutex, kWaitDuration);
if (res == TIMED_OUT) {
mTimeoutCount--;
break;
}
}
if (mNewCaptureReceived) {
if (mNewCaptureErrorCnt > kMaxRetryCount) {
ALOGW("Exceeding multiple retry limit of %d due to buffer drop", kMaxRetryCount);
return DONE;
} else if (mNewCaptureErrorCnt > 0) {
ALOGW("Capture error happened, retry %d...", mNewCaptureErrorCnt);
mNewCaptureReceived = false;
return STANDARD_CAPTURE;
}
}
if (mTimeoutCount <= 0) {
ALOGW("Timed out waiting for capture to complete");
return DONE;
}
if (mNewFrameReceived && mNewCaptureReceived) {
if (mNewFrameId != mCaptureId) {
ALOGW("Mismatched capture frame IDs: Expected %d, got %d",
mCaptureId, mNewFrameId);
}
camera_metadata_entry_t entry;
entry = mNewFrame.find(ANDROID_SENSOR_TIMESTAMP);
if (entry.count == 0) {
ALOGE("No timestamp field in capture frame!");
} else if (entry.count == 1) {
if (entry.data.i64[0] != mCaptureTimestamp) {
ALOGW("Mismatched capture timestamps: Metadata frame %" PRId64 ","
" captured buffer %" PRId64,
entry.data.i64[0],
mCaptureTimestamp);
}
} else {
ALOGE("Timestamp metadata is malformed!");
}
client->removeFrameListener(mCaptureId, mCaptureId + 1, this);
mNewFrameReceived = false;
mNewCaptureReceived = false;
return DONE;
}
return STANDARD_CAPTURE_WAIT;
}
status_t CaptureSequencer::updateCaptureRequest(const Parameters &params,
sp<Camera2Client> &client) {
ATRACE_CALL();
status_t res;
uint8_t captureIntent = static_cast<uint8_t>(ANDROID_CONTROL_CAPTURE_INTENT_STILL_CAPTURE);
if (mCaptureRequest.entryCount() == 0) {
res = client->getCameraDevice()->createDefaultRequest(
camera_request_template_t::CAMERA_TEMPLATE_STILL_CAPTURE,
&mCaptureRequest);
if (res != OK) {
ALOGE("%s: Camera %d: Unable to create default still image request:"
" %s (%d)", __FUNCTION__, client->getCameraId(),
strerror(-res), res);
return res;
}
}
if (params.state == Parameters::VIDEO_SNAPSHOT) {
captureIntent = static_cast<uint8_t>(ANDROID_CONTROL_CAPTURE_INTENT_VIDEO_SNAPSHOT);
}
res = mCaptureRequest.update(ANDROID_CONTROL_CAPTURE_INTENT, &captureIntent, 1);
if (res != OK) {
ALOGE("%s: Camera %d: Unable to update capture intent: %s (%d)",
__FUNCTION__, client->getCameraId(), strerror(-res), res);
return res;
}
res = params.updateRequest(&mCaptureRequest);
if (res != OK) {
ALOGE("%s: Camera %d: Unable to update common entries of capture "
"request: %s (%d)", __FUNCTION__, client->getCameraId(),
strerror(-res), res);
return res;
}
res = params.updateRequestJpeg(&mCaptureRequest);
if (res != OK) {
ALOGE("%s: Camera %d: Unable to update JPEG entries of capture "
"request: %s (%d)", __FUNCTION__, client->getCameraId(),
strerror(-res), res);
return res;
}
return OK;
}
/*static*/ void CaptureSequencer::shutterNotifyLocked(const Parameters &params,
const sp<Camera2Client>& client) {
ATRACE_CALL();
if (params.state == Parameters::STILL_CAPTURE
&& params.playShutterSound) {
client->getCameraService()->playSound(CameraService::SOUND_SHUTTER);
}
{
Camera2Client::SharedCameraCallbacks::Lock
l(client->mSharedCameraCallbacks);
ALOGV("%s: Notifying of shutter close to client", __FUNCTION__);
if (l.mRemoteCallback != 0) {
// ShutterCallback
l.mRemoteCallback->notifyCallback(CAMERA_MSG_SHUTTER,
/*ext1*/0, /*ext2*/0);
// RawCallback with null buffer
l.mRemoteCallback->notifyCallback(CAMERA_MSG_RAW_IMAGE_NOTIFY,
/*ext1*/0, /*ext2*/0);
} else {
ALOGV("%s: No client!", __FUNCTION__);
}
}
}
}; // namespace camera2
}; // namespace android