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/*
**
** Copyright 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.
*/
#ifndef INCLUDING_FROM_AUDIOFLINGER_H
#error This header file should only be included from AudioFlinger.h
#endif
//--- Audio Effect Management
// Interface implemented by the EffectModule parent or owner (e.g an EffectChain) to abstract
// interactions between the EffectModule and the reset of the audio framework.
class EffectCallbackInterface : public RefBase {
public:
~EffectCallbackInterface() override = default;
// Trivial methods usually implemented with help from ThreadBase
virtual audio_io_handle_t io() const = 0;
virtual bool isOutput() const = 0;
virtual bool isOffload() const = 0;
virtual bool isOffloadOrDirect() const = 0;
virtual bool isOffloadOrMmap() const = 0;
virtual uint32_t sampleRate() const = 0;
virtual audio_channel_mask_t channelMask() const = 0;
virtual uint32_t channelCount() const = 0;
virtual audio_channel_mask_t hapticChannelMask() const = 0;
virtual size_t frameCount() const = 0;
// Non trivial methods usually implemented with help from ThreadBase:
// pay attention to mutex locking order
virtual uint32_t latency() const { return 0; }
virtual status_t addEffectToHal(sp<EffectHalInterface> effect) = 0;
virtual status_t removeEffectFromHal(sp<EffectHalInterface> effect) = 0;
virtual void setVolumeForOutput(float left, float right) const = 0;
virtual bool disconnectEffectHandle(EffectHandle *handle, bool unpinIfLast) = 0;
virtual void checkSuspendOnEffectEnabled(const sp<EffectBase>& effect,
bool enabled,
bool threadLocked) = 0;
virtual void onEffectEnable(const sp<EffectBase>& effect) = 0;
virtual void onEffectDisable(const sp<EffectBase>& effect) = 0;
// Methods usually implemented with help from AudioFlinger: pay attention to mutex locking order
virtual status_t createEffectHal(const effect_uuid_t *pEffectUuid,
int32_t sessionId, int32_t deviceId, sp<EffectHalInterface> *effect) = 0;
virtual status_t allocateHalBuffer(size_t size, sp<EffectBufferHalInterface>* buffer) = 0;
virtual bool updateOrphanEffectChains(const sp<EffectBase>& effect) = 0;
// Methods usually implemented with help from EffectChain: pay attention to mutex locking order
virtual product_strategy_t strategy() const = 0;
virtual int32_t activeTrackCnt() const = 0;
virtual void resetVolume() = 0;
virtual wp<EffectChain> chain() const = 0;
};
// EffectBase(EffectModule) and EffectChain classes both have their own mutex to protect
// state changes or resource modifications. Always respect the following order
// if multiple mutexes must be acquired to avoid cross deadlock:
// AudioFlinger -> ThreadBase -> EffectChain -> EffectBase(EffectModule)
// AudioHandle -> ThreadBase -> EffectChain -> EffectBase(EffectModule)
// NOTE: When implementing the EffectCallbackInterface, in an EffectChain or other, it is important
// to pay attention to this locking order as some callback methods can be called from a state where
// EffectModule and/or EffectChain mutexes are held.
// In addition, methods that lock the AudioPolicyService mutex (getOutputForEffect(),
// startOutput(), getInputForAttr(), releaseInput()...) should never be called with AudioFlinger or
// Threadbase mutex locked to avoid cross deadlock with other clients calling AudioPolicyService
// methods that in turn call AudioFlinger thus locking the same mutexes in the reverse order.
// The EffectBase class contains common properties, state and behavior for and EffectModule or
// other derived classes managing an audio effect instance within the effect framework.
// It also contains the class mutex (see comment on locking order above).
class EffectBase : public RefBase {
public:
EffectBase(const sp<EffectCallbackInterface>& callback,
effect_descriptor_t *desc,
int id,
audio_session_t sessionId,
bool pinned);
~EffectBase() override = default;
enum effect_state {
IDLE,
RESTART,
STARTING,
ACTIVE,
STOPPING,
STOPPED,
DESTROYED
};
int id() const { return mId; }
effect_state state() const {
return mState;
}
audio_session_t sessionId() const {
return mSessionId;
}
const effect_descriptor_t& desc() const { return mDescriptor; }
bool isOffloadable() const
{ return (mDescriptor.flags & EFFECT_FLAG_OFFLOAD_SUPPORTED) != 0; }
bool isImplementationSoftware() const
{ return (mDescriptor.flags & EFFECT_FLAG_HW_ACC_MASK) == 0; }
bool isProcessImplemented() const
{ return (mDescriptor.flags & EFFECT_FLAG_NO_PROCESS) == 0; }
bool isVolumeControl() const
{ return (mDescriptor.flags & EFFECT_FLAG_VOLUME_MASK)
== EFFECT_FLAG_VOLUME_CTRL; }
bool isVolumeMonitor() const
{ return (mDescriptor.flags & EFFECT_FLAG_VOLUME_MASK)
== EFFECT_FLAG_VOLUME_MONITOR; }
virtual status_t setEnabled(bool enabled, bool fromHandle);
status_t setEnabled_l(bool enabled);
bool isEnabled() const;
void setSuspended(bool suspended);
bool suspended() const;
virtual status_t command(int32_t __unused,
const std::vector<uint8_t>& __unused,
int32_t __unused,
std::vector<uint8_t>* __unused) { return NO_ERROR; };
// mCallback is atomic so this can be lock-free.
void setCallback(const sp<EffectCallbackInterface>& callback) { mCallback = callback; }
sp<EffectCallbackInterface> getCallback() const { return mCallback.load(); }
status_t addHandle(EffectHandle *handle);
ssize_t disconnectHandle(EffectHandle *handle, bool unpinIfLast);
ssize_t removeHandle(EffectHandle *handle);
ssize_t removeHandle_l(EffectHandle *handle);
EffectHandle* controlHandle_l();
bool purgeHandles();
void checkSuspendOnEffectEnabled(bool enabled, bool threadLocked);
bool isPinned() const { return mPinned; }
void unPin() { mPinned = false; }
void lock() { mLock.lock(); }
void unlock() { mLock.unlock(); }
status_t updatePolicyState();
virtual sp<EffectModule> asEffectModule() { return nullptr; }
virtual sp<DeviceEffectProxy> asDeviceEffectProxy() { return nullptr; }
void dump(int fd, const Vector<String16>& args);
private:
friend class AudioFlinger; // for mHandles
bool mPinned = false;
DISALLOW_COPY_AND_ASSIGN(EffectBase);
mutable Mutex mLock; // mutex for process, commands and handles list protection
mediautils::atomic_sp<EffectCallbackInterface> mCallback; // parent effect chain
const int mId; // this instance unique ID
const audio_session_t mSessionId; // audio session ID
const effect_descriptor_t mDescriptor;// effect descriptor received from effect engine
effect_state mState = IDLE; // current activation state
// effect is suspended: temporarily disabled by framework
bool mSuspended = false;
Vector<EffectHandle *> mHandles; // list of client handles
// First handle in mHandles has highest priority and controls the effect module
// Audio policy effect state management
// Mutex protecting transactions with audio policy manager as mLock cannot
// be held to avoid cross deadlocks with audio policy mutex
Mutex mPolicyLock;
// Effect is registered in APM or not
bool mPolicyRegistered = false;
// Effect enabled state communicated to APM. Enabled state corresponds to
// state requested by the EffectHandle with control
bool mPolicyEnabled = false;
};
// The EffectModule class is a wrapper object controlling the effect engine implementation
// in the effect library. It prevents concurrent calls to process() and command() functions
// from different client threads. It keeps a list of EffectHandle objects corresponding
// to all client applications using this effect and notifies applications of effect state,
// control or parameter changes. It manages the activation state machine to send appropriate
// reset, enable, disable commands to effect engine and provide volume
// ramping when effects are activated/deactivated.
// When controlling an auxiliary effect, the EffectModule also provides an input buffer used by
// the attached track(s) to accumulate their auxiliary channel.
class EffectModule : public EffectBase {
public:
EffectModule(const sp<EffectCallbackInterface>& callabck,
effect_descriptor_t *desc,
int id,
audio_session_t sessionId,
bool pinned,
audio_port_handle_t deviceId);
virtual ~EffectModule();
void process();
bool updateState();
status_t command(int32_t cmdCode,
const std::vector<uint8_t>& cmdData,
int32_t maxReplySize,
std::vector<uint8_t>* reply) override;
void reset_l();
status_t configure();
status_t init();
uint32_t status() {
return mStatus;
}
bool isProcessEnabled() const;
bool isOffloadedOrDirect() const;
bool isVolumeControlEnabled() const;
void setInBuffer(const sp<EffectBufferHalInterface>& buffer);
int16_t *inBuffer() const {
return mInBuffer != 0 ? reinterpret_cast<int16_t*>(mInBuffer->ptr()) : NULL;
}
void setOutBuffer(const sp<EffectBufferHalInterface>& buffer);
int16_t *outBuffer() const {
return mOutBuffer != 0 ? reinterpret_cast<int16_t*>(mOutBuffer->ptr()) : NULL;
}
status_t setDevices(const AudioDeviceTypeAddrVector &devices);
status_t setInputDevice(const AudioDeviceTypeAddr &device);
status_t setVolume(uint32_t *left, uint32_t *right, bool controller);
status_t setMode(audio_mode_t mode);
status_t setAudioSource(audio_source_t source);
status_t start();
status_t stop();
status_t setOffloaded(bool offloaded, audio_io_handle_t io);
bool isOffloaded() const;
void addEffectToHal_l();
void release_l();
sp<EffectModule> asEffectModule() override { return this; }
static bool isHapticGenerator(const effect_uuid_t* type);
bool isHapticGenerator() const;
status_t setHapticIntensity(int id, int intensity);
status_t setVibratorInfo(const media::AudioVibratorInfo* vibratorInfo);
void dump(int fd, const Vector<String16>& args);
private:
friend class AudioFlinger; // for mHandles
// Maximum time allocated to effect engines to complete the turn off sequence
static const uint32_t MAX_DISABLE_TIME_MS = 10000;
DISALLOW_COPY_AND_ASSIGN(EffectModule);
status_t start_l();
status_t stop_l();
status_t removeEffectFromHal_l();
status_t sendSetAudioDevicesCommand(const AudioDeviceTypeAddrVector &devices, uint32_t cmdCode);
effect_config_t mConfig; // input and output audio configuration
sp<EffectHalInterface> mEffectInterface; // Effect module HAL
sp<EffectBufferHalInterface> mInBuffer; // Buffers for interacting with HAL
sp<EffectBufferHalInterface> mOutBuffer;
status_t mStatus; // initialization status
// First handle in mHandles has highest priority and controls the effect module
uint32_t mMaxDisableWaitCnt; // maximum grace period before forcing an effect off after
// sending disable command.
uint32_t mDisableWaitCnt; // current process() calls count during disable period.
bool mOffloaded; // effect is currently offloaded to the audio DSP
bool mAddedToHal; // effect has been added to the audio HAL
#ifdef FLOAT_EFFECT_CHAIN
bool mSupportsFloat; // effect supports float processing
sp<EffectBufferHalInterface> mInConversionBuffer; // Buffers for HAL conversion if needed.
sp<EffectBufferHalInterface> mOutConversionBuffer;
uint32_t mInChannelCountRequested;
uint32_t mOutChannelCountRequested;
#endif
class AutoLockReentrant {
public:
AutoLockReentrant(Mutex& mutex, pid_t allowedTid)
: mMutex(gettid() == allowedTid ? nullptr : &mutex)
{
if (mMutex != nullptr) mMutex->lock();
}
~AutoLockReentrant() {
if (mMutex != nullptr) mMutex->unlock();
}
private:
Mutex * const mMutex;
};
static constexpr pid_t INVALID_PID = (pid_t)-1;
// this tid is allowed to call setVolume() without acquiring the mutex.
pid_t mSetVolumeReentrantTid = INVALID_PID;
};
// The EffectHandle class implements the IEffect interface. It provides resources
// to receive parameter updates, keeps track of effect control
// ownership and state and has a pointer to the EffectModule object it is controlling.
// There is one EffectHandle object for each application controlling (or using)
// an effect module.
// The EffectHandle is obtained by calling AudioFlinger::createEffect().
class EffectHandle: public android::media::BnEffect {
public:
EffectHandle(const sp<EffectBase>& effect,
const sp<AudioFlinger::Client>& client,
const sp<media::IEffectClient>& effectClient,
int32_t priority);
virtual ~EffectHandle();
virtual status_t initCheck();
// IEffect
android::binder::Status enable(int32_t* _aidl_return) override;
android::binder::Status disable(int32_t* _aidl_return) override;
android::binder::Status command(int32_t cmdCode,
const std::vector<uint8_t>& cmdData,
int32_t maxResponseSize,
std::vector<uint8_t>* response,
int32_t* _aidl_return) override;
android::binder::Status disconnect() override;
android::binder::Status getCblk(media::SharedFileRegion* _aidl_return) override;
private:
void disconnect(bool unpinIfLast);
// Give or take control of effect module
// - hasControl: true if control is given, false if removed
// - signal: true client app should be signaled of change, false otherwise
// - enabled: state of the effect when control is passed
void setControl(bool hasControl, bool signal, bool enabled);
void commandExecuted(uint32_t cmdCode,
const std::vector<uint8_t>& cmdData,
const std::vector<uint8_t>& replyData);
void setEnabled(bool enabled);
bool enabled() const { return mEnabled; }
// Getters
wp<EffectBase> effect() const { return mEffect; }
int id() const {
sp<EffectBase> effect = mEffect.promote();
if (effect == 0) {
return 0;
}
return effect->id();
}
int priority() const { return mPriority; }
bool hasControl() const { return mHasControl; }
bool disconnected() const { return mDisconnected; }
void dumpToBuffer(char* buffer, size_t size);
private:
friend class AudioFlinger; // for mEffect, mHasControl, mEnabled
DISALLOW_COPY_AND_ASSIGN(EffectHandle);
Mutex mLock; // protects IEffect method calls
const wp<EffectBase> mEffect; // pointer to controlled EffectModule
const sp<media::IEffectClient> mEffectClient; // callback interface for client notifications
/*const*/ sp<Client> mClient; // client for shared memory allocation, see
// disconnect()
sp<IMemory> mCblkMemory; // shared memory for control block
effect_param_cblk_t* mCblk; // control block for deferred parameter setting via
// shared memory
uint8_t* mBuffer; // pointer to parameter area in shared memory
int mPriority; // client application priority to control the effect
bool mHasControl; // true if this handle is controlling the effect
bool mEnabled; // cached enable state: needed when the effect is
// restored after being suspended
bool mDisconnected; // Set to true by disconnect()
};
// the EffectChain class represents a group of effects associated to one audio session.
// There can be any number of EffectChain objects per output mixer thread (PlaybackThread).
// The EffectChain with session ID AUDIO_SESSION_OUTPUT_MIX contains global effects applied
// to the output mix.
// Effects in this chain can be insert or auxiliary. Effects in other chains (attached to
// tracks) are insert only. The EffectChain maintains an ordered list of effect module, the
// order corresponding in the effect process order. When attached to a track (session ID !=
// AUDIO_SESSION_OUTPUT_MIX),
// it also provide it's own input buffer used by the track as accumulation buffer.
class EffectChain : public RefBase {
public:
EffectChain(const wp<ThreadBase>& wThread, audio_session_t sessionId);
virtual ~EffectChain();
// special key used for an entry in mSuspendedEffects keyed vector
// corresponding to a suspend all request.
static const int kKeyForSuspendAll = 0;
// minimum duration during which we force calling effect process when last track on
// a session is stopped or removed to allow effect tail to be rendered
static const int kProcessTailDurationMs = 1000;
void process_l();
void lock() {
mLock.lock();
}
void unlock() {
mLock.unlock();
}
status_t createEffect_l(sp<EffectModule>& effect,
effect_descriptor_t *desc,
int id,
audio_session_t sessionId,
bool pinned);
status_t addEffect_l(const sp<EffectModule>& handle);
status_t addEffect_ll(const sp<EffectModule>& handle);
size_t removeEffect_l(const sp<EffectModule>& handle, bool release = false);
audio_session_t sessionId() const { return mSessionId; }
void setSessionId(audio_session_t sessionId) { mSessionId = sessionId; }
sp<EffectModule> getEffectFromDesc_l(effect_descriptor_t *descriptor);
sp<EffectModule> getEffectFromId_l(int id);
sp<EffectModule> getEffectFromType_l(const effect_uuid_t *type);
std::vector<int> getEffectIds();
// FIXME use float to improve the dynamic range
bool setVolume_l(uint32_t *left, uint32_t *right, bool force = false);
void resetVolume_l();
void setDevices_l(const AudioDeviceTypeAddrVector &devices);
void setInputDevice_l(const AudioDeviceTypeAddr &device);
void setMode_l(audio_mode_t mode);
void setAudioSource_l(audio_source_t source);
void setInBuffer(const sp<EffectBufferHalInterface>& buffer) {
mInBuffer = buffer;
}
effect_buffer_t *inBuffer() const {
return mInBuffer != 0 ? reinterpret_cast<effect_buffer_t*>(mInBuffer->ptr()) : NULL;
}
void setOutBuffer(const sp<EffectBufferHalInterface>& buffer) {
mOutBuffer = buffer;
}
effect_buffer_t *outBuffer() const {
return mOutBuffer != 0 ? reinterpret_cast<effect_buffer_t*>(mOutBuffer->ptr()) : NULL;
}
void incTrackCnt() { android_atomic_inc(&mTrackCnt); }
void decTrackCnt() { android_atomic_dec(&mTrackCnt); }
int32_t trackCnt() const { return android_atomic_acquire_load(&mTrackCnt); }
void incActiveTrackCnt() { android_atomic_inc(&mActiveTrackCnt);
mTailBufferCount = mMaxTailBuffers; }
void decActiveTrackCnt() { android_atomic_dec(&mActiveTrackCnt); }
int32_t activeTrackCnt() const { return android_atomic_acquire_load(&mActiveTrackCnt); }
product_strategy_t strategy() const { return mStrategy; }
void setStrategy(product_strategy_t strategy)
{ mStrategy = strategy; }
// suspend or restore effects of the specified type. The number of suspend requests is counted
// and restore occurs once all suspend requests are cancelled.
void setEffectSuspended_l(const effect_uuid_t *type,
bool suspend);
// suspend all eligible effects
void setEffectSuspendedAll_l(bool suspend);
// check if effects should be suspended or restored when a given effect is enable or disabled
void checkSuspendOnEffectEnabled(const sp<EffectModule>& effect, bool enabled);
void clearInputBuffer();
// At least one non offloadable effect in the chain is enabled
bool isNonOffloadableEnabled();
bool isNonOffloadableEnabled_l();
void syncHalEffectsState();
// flags is an ORed set of audio_output_flags_t which is updated on return.
void checkOutputFlagCompatibility(audio_output_flags_t *flags) const;
// flags is an ORed set of audio_input_flags_t which is updated on return.
void checkInputFlagCompatibility(audio_input_flags_t *flags) const;
// Is this EffectChain compatible with the RAW audio flag.
bool isRawCompatible() const;
// Is this EffectChain compatible with the FAST audio flag.
bool isFastCompatible() const;
// isCompatibleWithThread_l() must be called with thread->mLock held
bool isCompatibleWithThread_l(const sp<ThreadBase>& thread) const;
bool containsHapticGeneratingEffect_l();
void setHapticIntensity_l(int id, int intensity);
sp<EffectCallbackInterface> effectCallback() const { return mEffectCallback; }
wp<ThreadBase> thread() const { return mEffectCallback->thread(); }
void dump(int fd, const Vector<String16>& args);
private:
// For transaction consistency, please consider holding the EffectChain lock before
// calling the EffectChain::EffectCallback methods, excepting
// createEffectHal and allocateHalBuffer.
//
// This prevents migration of the EffectChain to another PlaybackThread
// for the purposes of the EffectCallback.
class EffectCallback : public EffectCallbackInterface {
public:
// Note: ctors taking a weak pointer to their owner must not promote it
// during construction (but may keep a reference for later promotion).
EffectCallback(const wp<EffectChain>& owner,
const wp<ThreadBase>& thread)
: mChain(owner)
, mThread(thread)
, mAudioFlinger(*gAudioFlinger) {
}
status_t createEffectHal(const effect_uuid_t *pEffectUuid,
int32_t sessionId, int32_t deviceId, sp<EffectHalInterface> *effect) override;
status_t allocateHalBuffer(size_t size, sp<EffectBufferHalInterface>* buffer) override;
bool updateOrphanEffectChains(const sp<EffectBase>& effect) override;
audio_io_handle_t io() const override;
bool isOutput() const override;
bool isOffload() const override;
bool isOffloadOrDirect() const override;
bool isOffloadOrMmap() const override;
uint32_t sampleRate() const override;
audio_channel_mask_t channelMask() const override;
uint32_t channelCount() const override;
audio_channel_mask_t hapticChannelMask() const override;
size_t frameCount() const override;
uint32_t latency() const override;
status_t addEffectToHal(sp<EffectHalInterface> effect) override;
status_t removeEffectFromHal(sp<EffectHalInterface> effect) override;
bool disconnectEffectHandle(EffectHandle *handle, bool unpinIfLast) override;
void setVolumeForOutput(float left, float right) const override;
// check if effects should be suspended/restored when a given effect is enable/disabled
void checkSuspendOnEffectEnabled(const sp<EffectBase>& effect,
bool enabled, bool threadLocked) override;
void resetVolume() override;
product_strategy_t strategy() const override;
int32_t activeTrackCnt() const override;
void onEffectEnable(const sp<EffectBase>& effect) override;
void onEffectDisable(const sp<EffectBase>& effect) override;
wp<EffectChain> chain() const override { return mChain; }
wp<ThreadBase> thread() const { return mThread.load(); }
void setThread(const wp<ThreadBase>& thread) {
mThread = thread;
}
private:
const wp<EffectChain> mChain;
mediautils::atomic_wp<ThreadBase> mThread;
AudioFlinger &mAudioFlinger; // implementation detail: outer instance always exists.
};
friend class AudioFlinger; // for mThread, mEffects
DISALLOW_COPY_AND_ASSIGN(EffectChain);
class SuspendedEffectDesc : public RefBase {
public:
SuspendedEffectDesc() : mRefCount(0) {}
int mRefCount; // > 0 when suspended
effect_uuid_t mType;
wp<EffectModule> mEffect;
};
// get a list of effect modules to suspend when an effect of the type
// passed is enabled.
void getSuspendEligibleEffects(Vector< sp<EffectModule> > &effects);
// get an effect module if it is currently enable
sp<EffectModule> getEffectIfEnabled(const effect_uuid_t *type);
// true if the effect whose descriptor is passed can be suspended
// OEMs can modify the rules implemented in this method to exclude specific effect
// types or implementations from the suspend/restore mechanism.
bool isEffectEligibleForSuspend(const effect_descriptor_t& desc);
static bool isEffectEligibleForBtNrecSuspend(const effect_uuid_t *type);
void clearInputBuffer_l();
void setThread(const sp<ThreadBase>& thread);
// true if any effect module within the chain has volume control
bool hasVolumeControlEnabled_l() const;
void setVolumeForOutput_l(uint32_t left, uint32_t right);
mutable Mutex mLock; // mutex protecting effect list
Vector< sp<EffectModule> > mEffects; // list of effect modules
audio_session_t mSessionId; // audio session ID
sp<EffectBufferHalInterface> mInBuffer; // chain input buffer
sp<EffectBufferHalInterface> mOutBuffer; // chain output buffer
// 'volatile' here means these are accessed with atomic operations instead of mutex
volatile int32_t mActiveTrackCnt; // number of active tracks connected
volatile int32_t mTrackCnt; // number of tracks connected
int32_t mTailBufferCount; // current effect tail buffer count
int32_t mMaxTailBuffers; // maximum effect tail buffers
int mVolumeCtrlIdx; // index of insert effect having control over volume
uint32_t mLeftVolume; // previous volume on left channel
uint32_t mRightVolume; // previous volume on right channel
uint32_t mNewLeftVolume; // new volume on left channel
uint32_t mNewRightVolume; // new volume on right channel
product_strategy_t mStrategy; // strategy for this effect chain
// mSuspendedEffects lists all effects currently suspended in the chain.
// Use effect type UUID timelow field as key. There is no real risk of identical
// timeLow fields among effect type UUIDs.
// Updated by setEffectSuspended_l() and setEffectSuspendedAll_l() only.
KeyedVector< int, sp<SuspendedEffectDesc> > mSuspendedEffects;
const sp<EffectCallback> mEffectCallback;
};
class DeviceEffectProxy : public EffectBase {
public:
DeviceEffectProxy (const AudioDeviceTypeAddr& device,
const sp<DeviceEffectManagerCallback>& callback,
effect_descriptor_t *desc, int id)
: EffectBase(callback, desc, id, AUDIO_SESSION_DEVICE, false),
mDevice(device), mManagerCallback(callback),
mMyCallback(new ProxyCallback(wp<DeviceEffectProxy>(this),
callback)) {}
status_t setEnabled(bool enabled, bool fromHandle) override;
sp<DeviceEffectProxy> asDeviceEffectProxy() override { return this; }
status_t init(const std::map<audio_patch_handle_t, PatchPanel::Patch>& patches);
status_t onCreatePatch(audio_patch_handle_t patchHandle, const PatchPanel::Patch& patch);
void onReleasePatch(audio_patch_handle_t patchHandle);
size_t removeEffect(const sp<EffectModule>& effect);
status_t addEffectToHal(sp<EffectHalInterface> effect);
status_t removeEffectFromHal(sp<EffectHalInterface> effect);
const AudioDeviceTypeAddr& device() { return mDevice; };
bool isOutput() const;
uint32_t sampleRate() const;
audio_channel_mask_t channelMask() const;
uint32_t channelCount() const;
void dump(int fd, int spaces);
private:
class ProxyCallback : public EffectCallbackInterface {
public:
// Note: ctors taking a weak pointer to their owner must not promote it
// during construction (but may keep a reference for later promotion).
ProxyCallback(const wp<DeviceEffectProxy>& owner,
const sp<DeviceEffectManagerCallback>& callback)
: mProxy(owner), mManagerCallback(callback) {}
status_t createEffectHal(const effect_uuid_t *pEffectUuid,
int32_t sessionId, int32_t deviceId, sp<EffectHalInterface> *effect) override;
status_t allocateHalBuffer(size_t size __unused,
sp<EffectBufferHalInterface>* buffer __unused) override { return NO_ERROR; }
bool updateOrphanEffectChains(const sp<EffectBase>& effect __unused) override {
return false;
}
audio_io_handle_t io() const override { return AUDIO_IO_HANDLE_NONE; }
bool isOutput() const override;
bool isOffload() const override { return false; }
bool isOffloadOrDirect() const override { return false; }
bool isOffloadOrMmap() const override { return false; }
uint32_t sampleRate() const override;
audio_channel_mask_t channelMask() const override;
uint32_t channelCount() const override;
audio_channel_mask_t hapticChannelMask() const override { return AUDIO_CHANNEL_NONE; }
size_t frameCount() const override { return 0; }
uint32_t latency() const override { return 0; }
status_t addEffectToHal(sp<EffectHalInterface> effect) override;
status_t removeEffectFromHal(sp<EffectHalInterface> effect) override;
bool disconnectEffectHandle(EffectHandle *handle, bool unpinIfLast) override;
void setVolumeForOutput(float left __unused, float right __unused) const override {}
void checkSuspendOnEffectEnabled(const sp<EffectBase>& effect __unused,
bool enabled __unused, bool threadLocked __unused) override {}
void resetVolume() override {}
product_strategy_t strategy() const override { return static_cast<product_strategy_t>(0); }
int32_t activeTrackCnt() const override { return 0; }
void onEffectEnable(const sp<EffectBase>& effect __unused) override {}
void onEffectDisable(const sp<EffectBase>& effect __unused) override {}
wp<EffectChain> chain() const override { return nullptr; }
int newEffectId();
private:
const wp<DeviceEffectProxy> mProxy;
const sp<DeviceEffectManagerCallback> mManagerCallback;
};
status_t checkPort(const PatchPanel::Patch& patch, const struct audio_port_config *port,
sp<EffectHandle> *handle);
const AudioDeviceTypeAddr mDevice;
const sp<DeviceEffectManagerCallback> mManagerCallback;
const sp<ProxyCallback> mMyCallback;
Mutex mProxyLock;
std::map<audio_patch_handle_t, sp<EffectHandle>> mEffectHandles; // protected by mProxyLock
sp<EffectModule> mHalEffect; // protected by mProxyLock
struct audio_port_config mDevicePort = { .id = AUDIO_PORT_HANDLE_NONE };
};