PlaybackTracks.h revision 573d80a8f463f648a515fc0975bf83951b272993
181784c37c61b09289654b979567a42bf73cd2b12Eric Laurent/* 281784c37c61b09289654b979567a42bf73cd2b12Eric Laurent** 381784c37c61b09289654b979567a42bf73cd2b12Eric Laurent** Copyright 2012, The Android Open Source Project 481784c37c61b09289654b979567a42bf73cd2b12Eric Laurent** 581784c37c61b09289654b979567a42bf73cd2b12Eric Laurent** Licensed under the Apache License, Version 2.0 (the "License"); 681784c37c61b09289654b979567a42bf73cd2b12Eric Laurent** you may not use this file except in compliance with the License. 781784c37c61b09289654b979567a42bf73cd2b12Eric Laurent** You may obtain a copy of the License at 881784c37c61b09289654b979567a42bf73cd2b12Eric Laurent** 981784c37c61b09289654b979567a42bf73cd2b12Eric Laurent** http://www.apache.org/licenses/LICENSE-2.0 1081784c37c61b09289654b979567a42bf73cd2b12Eric Laurent** 1181784c37c61b09289654b979567a42bf73cd2b12Eric Laurent** Unless required by applicable law or agreed to in writing, software 1281784c37c61b09289654b979567a42bf73cd2b12Eric Laurent** distributed under the License is distributed on an "AS IS" BASIS, 1381784c37c61b09289654b979567a42bf73cd2b12Eric Laurent** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1481784c37c61b09289654b979567a42bf73cd2b12Eric Laurent** See the License for the specific language governing permissions and 1581784c37c61b09289654b979567a42bf73cd2b12Eric Laurent** limitations under the License. 1681784c37c61b09289654b979567a42bf73cd2b12Eric Laurent*/ 1781784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 1881784c37c61b09289654b979567a42bf73cd2b12Eric Laurent#ifndef INCLUDING_FROM_AUDIOFLINGER_H 1981784c37c61b09289654b979567a42bf73cd2b12Eric Laurent #error This header file should only be included from AudioFlinger.h 2081784c37c61b09289654b979567a42bf73cd2b12Eric Laurent#endif 2181784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 2281784c37c61b09289654b979567a42bf73cd2b12Eric Laurent// playback track 2381784c37c61b09289654b979567a42bf73cd2b12Eric Laurentclass Track : public TrackBase, public VolumeProvider { 2481784c37c61b09289654b979567a42bf73cd2b12Eric Laurentpublic: 2581784c37c61b09289654b979567a42bf73cd2b12Eric Laurent Track( PlaybackThread *thread, 2681784c37c61b09289654b979567a42bf73cd2b12Eric Laurent const sp<Client>& client, 2781784c37c61b09289654b979567a42bf73cd2b12Eric Laurent audio_stream_type_t streamType, 2881784c37c61b09289654b979567a42bf73cd2b12Eric Laurent uint32_t sampleRate, 2981784c37c61b09289654b979567a42bf73cd2b12Eric Laurent audio_format_t format, 3081784c37c61b09289654b979567a42bf73cd2b12Eric Laurent audio_channel_mask_t channelMask, 3181784c37c61b09289654b979567a42bf73cd2b12Eric Laurent size_t frameCount, 3281784c37c61b09289654b979567a42bf73cd2b12Eric Laurent const sp<IMemory>& sharedBuffer, 3381784c37c61b09289654b979567a42bf73cd2b12Eric Laurent int sessionId, 3481784c37c61b09289654b979567a42bf73cd2b12Eric Laurent IAudioFlinger::track_flags_t flags); 3581784c37c61b09289654b979567a42bf73cd2b12Eric Laurent virtual ~Track(); 3681784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 3781784c37c61b09289654b979567a42bf73cd2b12Eric Laurent static void appendDumpHeader(String8& result); 3881784c37c61b09289654b979567a42bf73cd2b12Eric Laurent void dump(char* buffer, size_t size); 3981784c37c61b09289654b979567a42bf73cd2b12Eric Laurent virtual status_t start(AudioSystem::sync_event_t event = 4081784c37c61b09289654b979567a42bf73cd2b12Eric Laurent AudioSystem::SYNC_EVENT_NONE, 4181784c37c61b09289654b979567a42bf73cd2b12Eric Laurent int triggerSession = 0); 4281784c37c61b09289654b979567a42bf73cd2b12Eric Laurent virtual void stop(); 4381784c37c61b09289654b979567a42bf73cd2b12Eric Laurent void pause(); 4481784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 4581784c37c61b09289654b979567a42bf73cd2b12Eric Laurent void flush(); 4681784c37c61b09289654b979567a42bf73cd2b12Eric Laurent void destroy(); 4781784c37c61b09289654b979567a42bf73cd2b12Eric Laurent int name() const { return mName; } 4881784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 499f80dd223d83d9bb9077fb6baee056cee4eaf7e5Glenn Kasten virtual uint32_t sampleRate() const; 509f80dd223d83d9bb9077fb6baee056cee4eaf7e5Glenn Kasten 5181784c37c61b09289654b979567a42bf73cd2b12Eric Laurent audio_stream_type_t streamType() const { 5281784c37c61b09289654b979567a42bf73cd2b12Eric Laurent return mStreamType; 5381784c37c61b09289654b979567a42bf73cd2b12Eric Laurent } 54bfb1b832079bbb9426f72f3863199a54aefd02daEric Laurent bool isOffloaded() const { return (mFlags & IAudioFlinger::TRACK_OFFLOAD) != 0; } 55bfb1b832079bbb9426f72f3863199a54aefd02daEric Laurent status_t setParameters(const String8& keyValuePairs); 5681784c37c61b09289654b979567a42bf73cd2b12Eric Laurent status_t attachAuxEffect(int EffectId); 5781784c37c61b09289654b979567a42bf73cd2b12Eric Laurent void setAuxBuffer(int EffectId, int32_t *buffer); 5881784c37c61b09289654b979567a42bf73cd2b12Eric Laurent int32_t *auxBuffer() const { return mAuxBuffer; } 5981784c37c61b09289654b979567a42bf73cd2b12Eric Laurent void setMainBuffer(int16_t *buffer) { mMainBuffer = buffer; } 6081784c37c61b09289654b979567a42bf73cd2b12Eric Laurent int16_t *mainBuffer() const { return mMainBuffer; } 6181784c37c61b09289654b979567a42bf73cd2b12Eric Laurent int auxEffectId() const { return mAuxEffectId; } 62573d80a8f463f648a515fc0975bf83951b272993Glenn Kasten virtual status_t getTimestamp(AudioTimestamp& timestamp); 6381784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 6481784c37c61b09289654b979567a42bf73cd2b12Eric Laurent// implement FastMixerState::VolumeProvider interface 6581784c37c61b09289654b979567a42bf73cd2b12Eric Laurent virtual uint32_t getVolumeLR(); 6681784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 6781784c37c61b09289654b979567a42bf73cd2b12Eric Laurent virtual status_t setSyncEvent(const sp<SyncEvent>& event); 6881784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 6981784c37c61b09289654b979567a42bf73cd2b12Eric Laurentprotected: 7081784c37c61b09289654b979567a42bf73cd2b12Eric Laurent // for numerous 7181784c37c61b09289654b979567a42bf73cd2b12Eric Laurent friend class PlaybackThread; 7281784c37c61b09289654b979567a42bf73cd2b12Eric Laurent friend class MixerThread; 7381784c37c61b09289654b979567a42bf73cd2b12Eric Laurent friend class DirectOutputThread; 74bfb1b832079bbb9426f72f3863199a54aefd02daEric Laurent friend class OffloadThread; 7581784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 7681784c37c61b09289654b979567a42bf73cd2b12Eric Laurent Track(const Track&); 7781784c37c61b09289654b979567a42bf73cd2b12Eric Laurent Track& operator = (const Track&); 7881784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 7981784c37c61b09289654b979567a42bf73cd2b12Eric Laurent // AudioBufferProvider interface 8081784c37c61b09289654b979567a42bf73cd2b12Eric Laurent virtual status_t getNextBuffer(AudioBufferProvider::Buffer* buffer, 8181784c37c61b09289654b979567a42bf73cd2b12Eric Laurent int64_t pts = kInvalidPTS); 8281784c37c61b09289654b979567a42bf73cd2b12Eric Laurent // releaseBuffer() not overridden 8381784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 8481784c37c61b09289654b979567a42bf73cd2b12Eric Laurent virtual size_t framesReady() const; 8581784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 86c9b2e20f7c9a71e07ef398152709c76079decbcdGlenn Kasten bool isPausing() const { return mState == PAUSING; } 87c9b2e20f7c9a71e07ef398152709c76079decbcdGlenn Kasten bool isPaused() const { return mState == PAUSED; } 88c9b2e20f7c9a71e07ef398152709c76079decbcdGlenn Kasten bool isResuming() const { return mState == RESUMING; } 8981784c37c61b09289654b979567a42bf73cd2b12Eric Laurent bool isReady() const; 9081784c37c61b09289654b979567a42bf73cd2b12Eric Laurent void setPaused() { mState = PAUSED; } 9181784c37c61b09289654b979567a42bf73cd2b12Eric Laurent void reset(); 9281784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 9381784c37c61b09289654b979567a42bf73cd2b12Eric Laurent bool isOutputTrack() const { 9481784c37c61b09289654b979567a42bf73cd2b12Eric Laurent return (mStreamType == AUDIO_STREAM_CNT); 9581784c37c61b09289654b979567a42bf73cd2b12Eric Laurent } 9681784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 9781784c37c61b09289654b979567a42bf73cd2b12Eric Laurent sp<IMemory> sharedBuffer() const { return mSharedBuffer; } 9881784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 9981784c37c61b09289654b979567a42bf73cd2b12Eric Laurent // framesWritten is cumulative, never reset, and is shared all tracks 10081784c37c61b09289654b979567a42bf73cd2b12Eric Laurent // audioHalFrames is derived from output latency 10181784c37c61b09289654b979567a42bf73cd2b12Eric Laurent // FIXME parameters not needed, could get them from the thread 10281784c37c61b09289654b979567a42bf73cd2b12Eric Laurent bool presentationComplete(size_t framesWritten, size_t audioHalFrames); 10381784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 10481784c37c61b09289654b979567a42bf73cd2b12Eric Laurentpublic: 10581784c37c61b09289654b979567a42bf73cd2b12Eric Laurent void triggerEvents(AudioSystem::sync_event_t type); 1065736c35b841de56ce394b4879389f669b61425e6Glenn Kasten void invalidate(); 1075736c35b841de56ce394b4879389f669b61425e6Glenn Kasten bool isInvalid() const { return mIsInvalid; } 10881784c37c61b09289654b979567a42bf73cd2b12Eric Laurent virtual bool isTimedTrack() const { return false; } 10981784c37c61b09289654b979567a42bf73cd2b12Eric Laurent bool isFastTrack() const { return (mFlags & IAudioFlinger::TRACK_FAST) != 0; } 110d054c32443a493513ab63529b0c8b1aca290278cGlenn Kasten int fastIndex() const { return mFastIndex; } 11181784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 11281784c37c61b09289654b979567a42bf73cd2b12Eric Laurentprotected: 11381784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 11481784c37c61b09289654b979567a42bf73cd2b12Eric Laurent // FILLED state is used for suppressing volume ramp at begin of playing 11581784c37c61b09289654b979567a42bf73cd2b12Eric Laurent enum {FS_INVALID, FS_FILLING, FS_FILLED, FS_ACTIVE}; 11681784c37c61b09289654b979567a42bf73cd2b12Eric Laurent mutable uint8_t mFillingUpStatus; 11781784c37c61b09289654b979567a42bf73cd2b12Eric Laurent int8_t mRetryCount; 11881784c37c61b09289654b979567a42bf73cd2b12Eric Laurent const sp<IMemory> mSharedBuffer; 11981784c37c61b09289654b979567a42bf73cd2b12Eric Laurent bool mResetDone; 12081784c37c61b09289654b979567a42bf73cd2b12Eric Laurent const audio_stream_type_t mStreamType; 12181784c37c61b09289654b979567a42bf73cd2b12Eric Laurent int mName; // track name on the normal mixer, 12281784c37c61b09289654b979567a42bf73cd2b12Eric Laurent // allocated statically at track creation time, 12381784c37c61b09289654b979567a42bf73cd2b12Eric Laurent // and is even allocated (though unused) for fast tracks 12481784c37c61b09289654b979567a42bf73cd2b12Eric Laurent // FIXME don't allocate track name for fast tracks 12581784c37c61b09289654b979567a42bf73cd2b12Eric Laurent int16_t *mMainBuffer; 12681784c37c61b09289654b979567a42bf73cd2b12Eric Laurent int32_t *mAuxBuffer; 12781784c37c61b09289654b979567a42bf73cd2b12Eric Laurent int mAuxEffectId; 12881784c37c61b09289654b979567a42bf73cd2b12Eric Laurent bool mHasVolumeController; 12981784c37c61b09289654b979567a42bf73cd2b12Eric Laurent size_t mPresentationCompleteFrames; // number of frames written to the 13081784c37c61b09289654b979567a42bf73cd2b12Eric Laurent // audio HAL when this track will be fully rendered 13181784c37c61b09289654b979567a42bf73cd2b12Eric Laurent // zero means not monitoring 13281784c37c61b09289654b979567a42bf73cd2b12Eric Laurentprivate: 13381784c37c61b09289654b979567a42bf73cd2b12Eric Laurent IAudioFlinger::track_flags_t mFlags; 13481784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 13581784c37c61b09289654b979567a42bf73cd2b12Eric Laurent // The following fields are only for fast tracks, and should be in a subclass 13681784c37c61b09289654b979567a42bf73cd2b12Eric Laurent int mFastIndex; // index within FastMixerState::mFastTracks[]; 13781784c37c61b09289654b979567a42bf73cd2b12Eric Laurent // either mFastIndex == -1 if not isFastTrack() 13881784c37c61b09289654b979567a42bf73cd2b12Eric Laurent // or 0 < mFastIndex < FastMixerState::kMaxFast because 13981784c37c61b09289654b979567a42bf73cd2b12Eric Laurent // index 0 is reserved for normal mixer's submix; 14081784c37c61b09289654b979567a42bf73cd2b12Eric Laurent // index is allocated statically at track creation time 14181784c37c61b09289654b979567a42bf73cd2b12Eric Laurent // but the slot is only used if track is active 14281784c37c61b09289654b979567a42bf73cd2b12Eric Laurent FastTrackUnderruns mObservedUnderruns; // Most recently observed value of 14381784c37c61b09289654b979567a42bf73cd2b12Eric Laurent // mFastMixerDumpState.mTracks[mFastIndex].mUnderruns 14481784c37c61b09289654b979567a42bf73cd2b12Eric Laurent volatile float mCachedVolume; // combined master volume and stream type volume; 14581784c37c61b09289654b979567a42bf73cd2b12Eric Laurent // 'volatile' means accessed without lock or 14681784c37c61b09289654b979567a42bf73cd2b12Eric Laurent // barrier, but is read/written atomically 1475736c35b841de56ce394b4879389f669b61425e6Glenn Kasten bool mIsInvalid; // non-resettable latch, set by invalidate() 1489f80dd223d83d9bb9077fb6baee056cee4eaf7e5Glenn Kasten AudioTrackServerProxy* mAudioTrackServerProxy; 149bfb1b832079bbb9426f72f3863199a54aefd02daEric Laurent bool mResumeToStopping; // track was paused in stopping state. 15081784c37c61b09289654b979567a42bf73cd2b12Eric Laurent}; // end of Track 15181784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 15281784c37c61b09289654b979567a42bf73cd2b12Eric Laurentclass TimedTrack : public Track { 15381784c37c61b09289654b979567a42bf73cd2b12Eric Laurent public: 15481784c37c61b09289654b979567a42bf73cd2b12Eric Laurent static sp<TimedTrack> create(PlaybackThread *thread, 15581784c37c61b09289654b979567a42bf73cd2b12Eric Laurent const sp<Client>& client, 15681784c37c61b09289654b979567a42bf73cd2b12Eric Laurent audio_stream_type_t streamType, 15781784c37c61b09289654b979567a42bf73cd2b12Eric Laurent uint32_t sampleRate, 15881784c37c61b09289654b979567a42bf73cd2b12Eric Laurent audio_format_t format, 15981784c37c61b09289654b979567a42bf73cd2b12Eric Laurent audio_channel_mask_t channelMask, 16081784c37c61b09289654b979567a42bf73cd2b12Eric Laurent size_t frameCount, 16181784c37c61b09289654b979567a42bf73cd2b12Eric Laurent const sp<IMemory>& sharedBuffer, 16281784c37c61b09289654b979567a42bf73cd2b12Eric Laurent int sessionId); 16381784c37c61b09289654b979567a42bf73cd2b12Eric Laurent virtual ~TimedTrack(); 16481784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 16581784c37c61b09289654b979567a42bf73cd2b12Eric Laurent class TimedBuffer { 16681784c37c61b09289654b979567a42bf73cd2b12Eric Laurent public: 16781784c37c61b09289654b979567a42bf73cd2b12Eric Laurent TimedBuffer(); 16881784c37c61b09289654b979567a42bf73cd2b12Eric Laurent TimedBuffer(const sp<IMemory>& buffer, int64_t pts); 16981784c37c61b09289654b979567a42bf73cd2b12Eric Laurent const sp<IMemory>& buffer() const { return mBuffer; } 17081784c37c61b09289654b979567a42bf73cd2b12Eric Laurent int64_t pts() const { return mPTS; } 17181784c37c61b09289654b979567a42bf73cd2b12Eric Laurent uint32_t position() const { return mPosition; } 17281784c37c61b09289654b979567a42bf73cd2b12Eric Laurent void setPosition(uint32_t pos) { mPosition = pos; } 17381784c37c61b09289654b979567a42bf73cd2b12Eric Laurent private: 17481784c37c61b09289654b979567a42bf73cd2b12Eric Laurent sp<IMemory> mBuffer; 17581784c37c61b09289654b979567a42bf73cd2b12Eric Laurent int64_t mPTS; 17681784c37c61b09289654b979567a42bf73cd2b12Eric Laurent uint32_t mPosition; 17781784c37c61b09289654b979567a42bf73cd2b12Eric Laurent }; 17881784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 17981784c37c61b09289654b979567a42bf73cd2b12Eric Laurent // Mixer facing methods. 18081784c37c61b09289654b979567a42bf73cd2b12Eric Laurent virtual bool isTimedTrack() const { return true; } 18181784c37c61b09289654b979567a42bf73cd2b12Eric Laurent virtual size_t framesReady() const; 18281784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 18381784c37c61b09289654b979567a42bf73cd2b12Eric Laurent // AudioBufferProvider interface 18481784c37c61b09289654b979567a42bf73cd2b12Eric Laurent virtual status_t getNextBuffer(AudioBufferProvider::Buffer* buffer, 18581784c37c61b09289654b979567a42bf73cd2b12Eric Laurent int64_t pts); 18681784c37c61b09289654b979567a42bf73cd2b12Eric Laurent virtual void releaseBuffer(AudioBufferProvider::Buffer* buffer); 18781784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 18881784c37c61b09289654b979567a42bf73cd2b12Eric Laurent // Client/App facing methods. 18981784c37c61b09289654b979567a42bf73cd2b12Eric Laurent status_t allocateTimedBuffer(size_t size, 19081784c37c61b09289654b979567a42bf73cd2b12Eric Laurent sp<IMemory>* buffer); 19181784c37c61b09289654b979567a42bf73cd2b12Eric Laurent status_t queueTimedBuffer(const sp<IMemory>& buffer, 19281784c37c61b09289654b979567a42bf73cd2b12Eric Laurent int64_t pts); 19381784c37c61b09289654b979567a42bf73cd2b12Eric Laurent status_t setMediaTimeTransform(const LinearTransform& xform, 19481784c37c61b09289654b979567a42bf73cd2b12Eric Laurent TimedAudioTrack::TargetTimeline target); 19581784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 19681784c37c61b09289654b979567a42bf73cd2b12Eric Laurent private: 19781784c37c61b09289654b979567a42bf73cd2b12Eric Laurent TimedTrack(PlaybackThread *thread, 19881784c37c61b09289654b979567a42bf73cd2b12Eric Laurent const sp<Client>& client, 19981784c37c61b09289654b979567a42bf73cd2b12Eric Laurent audio_stream_type_t streamType, 20081784c37c61b09289654b979567a42bf73cd2b12Eric Laurent uint32_t sampleRate, 20181784c37c61b09289654b979567a42bf73cd2b12Eric Laurent audio_format_t format, 20281784c37c61b09289654b979567a42bf73cd2b12Eric Laurent audio_channel_mask_t channelMask, 20381784c37c61b09289654b979567a42bf73cd2b12Eric Laurent size_t frameCount, 20481784c37c61b09289654b979567a42bf73cd2b12Eric Laurent const sp<IMemory>& sharedBuffer, 20581784c37c61b09289654b979567a42bf73cd2b12Eric Laurent int sessionId); 20681784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 20781784c37c61b09289654b979567a42bf73cd2b12Eric Laurent void timedYieldSamples_l(AudioBufferProvider::Buffer* buffer); 20881784c37c61b09289654b979567a42bf73cd2b12Eric Laurent void timedYieldSilence_l(uint32_t numFrames, 20981784c37c61b09289654b979567a42bf73cd2b12Eric Laurent AudioBufferProvider::Buffer* buffer); 21081784c37c61b09289654b979567a42bf73cd2b12Eric Laurent void trimTimedBufferQueue_l(); 21181784c37c61b09289654b979567a42bf73cd2b12Eric Laurent void trimTimedBufferQueueHead_l(const char* logTag); 21281784c37c61b09289654b979567a42bf73cd2b12Eric Laurent void updateFramesPendingAfterTrim_l(const TimedBuffer& buf, 21381784c37c61b09289654b979567a42bf73cd2b12Eric Laurent const char* logTag); 21481784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 21581784c37c61b09289654b979567a42bf73cd2b12Eric Laurent uint64_t mLocalTimeFreq; 21681784c37c61b09289654b979567a42bf73cd2b12Eric Laurent LinearTransform mLocalTimeToSampleTransform; 21781784c37c61b09289654b979567a42bf73cd2b12Eric Laurent LinearTransform mMediaTimeToSampleTransform; 21881784c37c61b09289654b979567a42bf73cd2b12Eric Laurent sp<MemoryDealer> mTimedMemoryDealer; 21981784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 22081784c37c61b09289654b979567a42bf73cd2b12Eric Laurent Vector<TimedBuffer> mTimedBufferQueue; 22181784c37c61b09289654b979567a42bf73cd2b12Eric Laurent bool mQueueHeadInFlight; 22281784c37c61b09289654b979567a42bf73cd2b12Eric Laurent bool mTrimQueueHeadOnRelease; 22381784c37c61b09289654b979567a42bf73cd2b12Eric Laurent uint32_t mFramesPendingInQueue; 22481784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 22581784c37c61b09289654b979567a42bf73cd2b12Eric Laurent uint8_t* mTimedSilenceBuffer; 22681784c37c61b09289654b979567a42bf73cd2b12Eric Laurent uint32_t mTimedSilenceBufferSize; 22781784c37c61b09289654b979567a42bf73cd2b12Eric Laurent mutable Mutex mTimedBufferQueueLock; 22881784c37c61b09289654b979567a42bf73cd2b12Eric Laurent bool mTimedAudioOutputOnTime; 22981784c37c61b09289654b979567a42bf73cd2b12Eric Laurent CCHelper mCCHelper; 23081784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 23181784c37c61b09289654b979567a42bf73cd2b12Eric Laurent Mutex mMediaTimeTransformLock; 23281784c37c61b09289654b979567a42bf73cd2b12Eric Laurent LinearTransform mMediaTimeTransform; 23381784c37c61b09289654b979567a42bf73cd2b12Eric Laurent bool mMediaTimeTransformValid; 23481784c37c61b09289654b979567a42bf73cd2b12Eric Laurent TimedAudioTrack::TargetTimeline mMediaTimeTransformTarget; 23581784c37c61b09289654b979567a42bf73cd2b12Eric Laurent}; 23681784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 23781784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 23881784c37c61b09289654b979567a42bf73cd2b12Eric Laurent// playback track, used by DuplicatingThread 23981784c37c61b09289654b979567a42bf73cd2b12Eric Laurentclass OutputTrack : public Track { 24081784c37c61b09289654b979567a42bf73cd2b12Eric Laurentpublic: 24181784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 24281784c37c61b09289654b979567a42bf73cd2b12Eric Laurent class Buffer : public AudioBufferProvider::Buffer { 24381784c37c61b09289654b979567a42bf73cd2b12Eric Laurent public: 24481784c37c61b09289654b979567a42bf73cd2b12Eric Laurent int16_t *mBuffer; 24581784c37c61b09289654b979567a42bf73cd2b12Eric Laurent }; 24681784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 24781784c37c61b09289654b979567a42bf73cd2b12Eric Laurent OutputTrack(PlaybackThread *thread, 24881784c37c61b09289654b979567a42bf73cd2b12Eric Laurent DuplicatingThread *sourceThread, 24981784c37c61b09289654b979567a42bf73cd2b12Eric Laurent uint32_t sampleRate, 25081784c37c61b09289654b979567a42bf73cd2b12Eric Laurent audio_format_t format, 25181784c37c61b09289654b979567a42bf73cd2b12Eric Laurent audio_channel_mask_t channelMask, 25281784c37c61b09289654b979567a42bf73cd2b12Eric Laurent size_t frameCount); 25381784c37c61b09289654b979567a42bf73cd2b12Eric Laurent virtual ~OutputTrack(); 25481784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 25581784c37c61b09289654b979567a42bf73cd2b12Eric Laurent virtual status_t start(AudioSystem::sync_event_t event = 25681784c37c61b09289654b979567a42bf73cd2b12Eric Laurent AudioSystem::SYNC_EVENT_NONE, 25781784c37c61b09289654b979567a42bf73cd2b12Eric Laurent int triggerSession = 0); 25881784c37c61b09289654b979567a42bf73cd2b12Eric Laurent virtual void stop(); 25981784c37c61b09289654b979567a42bf73cd2b12Eric Laurent bool write(int16_t* data, uint32_t frames); 26081784c37c61b09289654b979567a42bf73cd2b12Eric Laurent bool bufferQueueEmpty() const { return mBufferQueue.size() == 0; } 26181784c37c61b09289654b979567a42bf73cd2b12Eric Laurent bool isActive() const { return mActive; } 26281784c37c61b09289654b979567a42bf73cd2b12Eric Laurent const wp<ThreadBase>& thread() const { return mThread; } 26381784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 26481784c37c61b09289654b979567a42bf73cd2b12Eric Laurentprivate: 26581784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 26681784c37c61b09289654b979567a42bf73cd2b12Eric Laurent status_t obtainBuffer(AudioBufferProvider::Buffer* buffer, 26781784c37c61b09289654b979567a42bf73cd2b12Eric Laurent uint32_t waitTimeMs); 26881784c37c61b09289654b979567a42bf73cd2b12Eric Laurent void clearBufferQueue(); 26981784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 27081784c37c61b09289654b979567a42bf73cd2b12Eric Laurent // Maximum number of pending buffers allocated by OutputTrack::write() 27181784c37c61b09289654b979567a42bf73cd2b12Eric Laurent static const uint8_t kMaxOverFlowBuffers = 10; 27281784c37c61b09289654b979567a42bf73cd2b12Eric Laurent 27381784c37c61b09289654b979567a42bf73cd2b12Eric Laurent Vector < Buffer* > mBufferQueue; 27481784c37c61b09289654b979567a42bf73cd2b12Eric Laurent AudioBufferProvider::Buffer mOutBuffer; 27581784c37c61b09289654b979567a42bf73cd2b12Eric Laurent bool mActive; 27681784c37c61b09289654b979567a42bf73cd2b12Eric Laurent DuplicatingThread* const mSourceThread; // for waitTimeMs() in write() 277e3aa659e9cee7df5c12a80d285cc29ab3b2cbb39Glenn Kasten AudioTrackClientProxy* mClientProxy; 27881784c37c61b09289654b979567a42bf73cd2b12Eric Laurent}; // end of OutputTrack 279