| /* //device/include/server/AudioFlinger/AudioFlinger.h |
| ** |
| ** Copyright 2007, 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_FLINGER_H |
| #define ANDROID_AUDIO_FLINGER_H |
| |
| #include <stdint.h> |
| #include <sys/types.h> |
| #include <limits.h> |
| |
| #include <media/IAudioFlinger.h> |
| #include <media/IAudioFlingerClient.h> |
| #include <media/IAudioTrack.h> |
| #include <media/IAudioRecord.h> |
| #include <media/AudioTrack.h> |
| |
| #include <utils/Atomic.h> |
| #include <utils/Errors.h> |
| #include <utils/threads.h> |
| #include <utils/SortedVector.h> |
| #include <utils/TypeHelpers.h> |
| #include <utils/Vector.h> |
| |
| #include <binder/BinderService.h> |
| #include <binder/MemoryDealer.h> |
| |
| #include <system/audio.h> |
| #include <hardware/audio.h> |
| |
| #include "AudioBufferProvider.h" |
| |
| namespace android { |
| |
| class audio_track_cblk_t; |
| class effect_param_cblk_t; |
| class AudioMixer; |
| class AudioBuffer; |
| class AudioResampler; |
| |
| // ---------------------------------------------------------------------------- |
| |
| #define LIKELY( exp ) (__builtin_expect( (exp) != 0, true )) |
| #define UNLIKELY( exp ) (__builtin_expect( (exp) != 0, false )) |
| |
| |
| // ---------------------------------------------------------------------------- |
| |
| static const nsecs_t kStandbyTimeInNsecs = seconds(3); |
| |
| class AudioFlinger : |
| public BinderService<AudioFlinger>, |
| public BnAudioFlinger |
| { |
| friend class BinderService<AudioFlinger>; |
| public: |
| static char const* getServiceName() { return "media.audio_flinger"; } |
| |
| virtual status_t dump(int fd, const Vector<String16>& args); |
| |
| // IAudioFlinger interface |
| virtual sp<IAudioTrack> createTrack( |
| pid_t pid, |
| int streamType, |
| uint32_t sampleRate, |
| uint32_t format, |
| uint32_t channelMask, |
| int frameCount, |
| uint32_t flags, |
| const sp<IMemory>& sharedBuffer, |
| int output, |
| int *sessionId, |
| status_t *status); |
| |
| virtual uint32_t sampleRate(int output) const; |
| virtual int channelCount(int output) const; |
| virtual uint32_t format(int output) const; |
| virtual size_t frameCount(int output) const; |
| virtual uint32_t latency(int output) const; |
| |
| virtual status_t setMasterVolume(float value); |
| virtual status_t setMasterMute(bool muted); |
| |
| virtual float masterVolume() const; |
| virtual bool masterMute() const; |
| |
| virtual status_t setStreamVolume(int stream, float value, int output); |
| virtual status_t setStreamMute(int stream, bool muted); |
| |
| virtual float streamVolume(int stream, int output) const; |
| virtual bool streamMute(int stream) const; |
| |
| virtual status_t setMode(int mode); |
| |
| virtual status_t setMicMute(bool state); |
| virtual bool getMicMute() const; |
| |
| virtual status_t setParameters(int ioHandle, const String8& keyValuePairs); |
| virtual String8 getParameters(int ioHandle, const String8& keys); |
| |
| virtual void registerClient(const sp<IAudioFlingerClient>& client); |
| |
| virtual size_t getInputBufferSize(uint32_t sampleRate, int format, int channelCount); |
| virtual unsigned int getInputFramesLost(int ioHandle); |
| |
| virtual int openOutput(uint32_t *pDevices, |
| uint32_t *pSamplingRate, |
| uint32_t *pFormat, |
| uint32_t *pChannels, |
| uint32_t *pLatencyMs, |
| uint32_t flags); |
| |
| virtual int openDuplicateOutput(int output1, int output2); |
| |
| virtual status_t closeOutput(int output); |
| |
| virtual status_t suspendOutput(int output); |
| |
| virtual status_t restoreOutput(int output); |
| |
| virtual int openInput(uint32_t *pDevices, |
| uint32_t *pSamplingRate, |
| uint32_t *pFormat, |
| uint32_t *pChannels, |
| uint32_t acoustics); |
| |
| virtual status_t closeInput(int input); |
| |
| virtual status_t setStreamOutput(uint32_t stream, int output); |
| |
| virtual status_t setVoiceVolume(float volume); |
| |
| virtual status_t getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames, int output); |
| |
| virtual int newAudioSessionId(); |
| |
| virtual status_t queryNumberEffects(uint32_t *numEffects); |
| |
| virtual status_t queryEffect(uint32_t index, effect_descriptor_t *descriptor); |
| |
| virtual status_t getEffectDescriptor(effect_uuid_t *pUuid, effect_descriptor_t *descriptor); |
| |
| virtual sp<IEffect> createEffect(pid_t pid, |
| effect_descriptor_t *pDesc, |
| const sp<IEffectClient>& effectClient, |
| int32_t priority, |
| int output, |
| int sessionId, |
| status_t *status, |
| int *id, |
| int *enabled); |
| |
| virtual status_t moveEffects(int session, int srcOutput, int dstOutput); |
| |
| enum hardware_call_state { |
| AUDIO_HW_IDLE = 0, |
| AUDIO_HW_INIT, |
| AUDIO_HW_OUTPUT_OPEN, |
| AUDIO_HW_OUTPUT_CLOSE, |
| AUDIO_HW_INPUT_OPEN, |
| AUDIO_HW_INPUT_CLOSE, |
| AUDIO_HW_STANDBY, |
| AUDIO_HW_SET_MASTER_VOLUME, |
| AUDIO_HW_GET_ROUTING, |
| AUDIO_HW_SET_ROUTING, |
| AUDIO_HW_GET_MODE, |
| AUDIO_HW_SET_MODE, |
| AUDIO_HW_GET_MIC_MUTE, |
| AUDIO_HW_SET_MIC_MUTE, |
| AUDIO_SET_VOICE_VOLUME, |
| AUDIO_SET_PARAMETER, |
| }; |
| |
| // record interface |
| virtual sp<IAudioRecord> openRecord( |
| pid_t pid, |
| int input, |
| uint32_t sampleRate, |
| uint32_t format, |
| uint32_t channelMask, |
| int frameCount, |
| uint32_t flags, |
| int *sessionId, |
| status_t *status); |
| |
| virtual status_t onTransact( |
| uint32_t code, |
| const Parcel& data, |
| Parcel* reply, |
| uint32_t flags); |
| |
| uint32_t getMode() { return mMode; } |
| |
| private: |
| AudioFlinger(); |
| virtual ~AudioFlinger(); |
| |
| status_t initCheck() const; |
| virtual void onFirstRef(); |
| audio_hw_device_t* findSuitableHwDev_l(uint32_t devices); |
| |
| // Internal dump utilites. |
| status_t dumpPermissionDenial(int fd, const Vector<String16>& args); |
| status_t dumpClients(int fd, const Vector<String16>& args); |
| status_t dumpInternals(int fd, const Vector<String16>& args); |
| |
| // --- Client --- |
| class Client : public RefBase { |
| public: |
| Client(const sp<AudioFlinger>& audioFlinger, pid_t pid); |
| virtual ~Client(); |
| const sp<MemoryDealer>& heap() const; |
| pid_t pid() const { return mPid; } |
| sp<AudioFlinger> audioFlinger() { return mAudioFlinger; } |
| |
| private: |
| Client(const Client&); |
| Client& operator = (const Client&); |
| sp<AudioFlinger> mAudioFlinger; |
| sp<MemoryDealer> mMemoryDealer; |
| pid_t mPid; |
| }; |
| |
| // --- Notification Client --- |
| class NotificationClient : public IBinder::DeathRecipient { |
| public: |
| NotificationClient(const sp<AudioFlinger>& audioFlinger, |
| const sp<IAudioFlingerClient>& client, |
| pid_t pid); |
| virtual ~NotificationClient(); |
| |
| sp<IAudioFlingerClient> client() { return mClient; } |
| |
| // IBinder::DeathRecipient |
| virtual void binderDied(const wp<IBinder>& who); |
| |
| private: |
| NotificationClient(const NotificationClient&); |
| NotificationClient& operator = (const NotificationClient&); |
| |
| sp<AudioFlinger> mAudioFlinger; |
| pid_t mPid; |
| sp<IAudioFlingerClient> mClient; |
| }; |
| |
| class TrackHandle; |
| class RecordHandle; |
| class RecordThread; |
| class PlaybackThread; |
| class MixerThread; |
| class DirectOutputThread; |
| class DuplicatingThread; |
| class Track; |
| class RecordTrack; |
| class EffectModule; |
| class EffectHandle; |
| class EffectChain; |
| struct AudioStreamOut; |
| struct AudioStreamIn; |
| |
| class ThreadBase : public Thread { |
| public: |
| ThreadBase (const sp<AudioFlinger>& audioFlinger, int id); |
| virtual ~ThreadBase(); |
| |
| status_t dumpBase(int fd, const Vector<String16>& args); |
| |
| // base for record and playback |
| class TrackBase : public AudioBufferProvider, public RefBase { |
| |
| public: |
| enum track_state { |
| IDLE, |
| TERMINATED, |
| STOPPED, |
| RESUMING, |
| ACTIVE, |
| PAUSING, |
| PAUSED |
| }; |
| |
| enum track_flags { |
| STEPSERVER_FAILED = 0x01, // StepServer could not acquire cblk->lock mutex |
| SYSTEM_FLAGS_MASK = 0x0000ffffUL, |
| // The upper 16 bits are used for track-specific flags. |
| }; |
| |
| TrackBase(const wp<ThreadBase>& thread, |
| const sp<Client>& client, |
| uint32_t sampleRate, |
| uint32_t format, |
| uint32_t channelMask, |
| int frameCount, |
| uint32_t flags, |
| const sp<IMemory>& sharedBuffer, |
| int sessionId); |
| ~TrackBase(); |
| |
| virtual status_t start() = 0; |
| virtual void stop() = 0; |
| sp<IMemory> getCblk() const; |
| audio_track_cblk_t* cblk() const { return mCblk; } |
| int sessionId() { return mSessionId; } |
| |
| protected: |
| friend class ThreadBase; |
| friend class RecordHandle; |
| friend class PlaybackThread; |
| friend class RecordThread; |
| friend class MixerThread; |
| friend class DirectOutputThread; |
| |
| TrackBase(const TrackBase&); |
| TrackBase& operator = (const TrackBase&); |
| |
| virtual status_t getNextBuffer(AudioBufferProvider::Buffer* buffer) = 0; |
| virtual void releaseBuffer(AudioBufferProvider::Buffer* buffer); |
| |
| uint32_t format() const { |
| return mFormat; |
| } |
| |
| int channelCount() const ; |
| |
| uint32_t channelMask() const; |
| |
| int sampleRate() const; |
| |
| void* getBuffer(uint32_t offset, uint32_t frames) const; |
| |
| bool isStopped() const { |
| return mState == STOPPED; |
| } |
| |
| bool isTerminated() const { |
| return mState == TERMINATED; |
| } |
| |
| bool step(); |
| void reset(); |
| |
| wp<ThreadBase> mThread; |
| sp<Client> mClient; |
| sp<IMemory> mCblkMemory; |
| audio_track_cblk_t* mCblk; |
| void* mBuffer; |
| void* mBufferEnd; |
| uint32_t mFrameCount; |
| // we don't really need a lock for these |
| int mState; |
| int mClientTid; |
| uint32_t mFormat; |
| uint32_t mFlags; |
| int mSessionId; |
| uint8_t mChannelCount; |
| uint32_t mChannelMask; |
| }; |
| |
| class ConfigEvent { |
| public: |
| ConfigEvent() : mEvent(0), mParam(0) {} |
| |
| int mEvent; |
| int mParam; |
| }; |
| |
| uint32_t sampleRate() const; |
| int channelCount() const; |
| uint32_t format() const; |
| size_t frameCount() const; |
| void wakeUp() { mWaitWorkCV.broadcast(); } |
| void exit(); |
| virtual bool checkForNewParameters_l() = 0; |
| virtual status_t setParameters(const String8& keyValuePairs); |
| virtual String8 getParameters(const String8& keys) = 0; |
| virtual void audioConfigChanged_l(int event, int param = 0) = 0; |
| void sendConfigEvent(int event, int param = 0); |
| void sendConfigEvent_l(int event, int param = 0); |
| void processConfigEvents(); |
| int id() const { return mId;} |
| bool standby() { return mStandby; } |
| |
| mutable Mutex mLock; |
| |
| protected: |
| |
| friend class Track; |
| friend class TrackBase; |
| friend class PlaybackThread; |
| friend class MixerThread; |
| friend class DirectOutputThread; |
| friend class DuplicatingThread; |
| friend class RecordThread; |
| friend class RecordTrack; |
| |
| Condition mWaitWorkCV; |
| sp<AudioFlinger> mAudioFlinger; |
| uint32_t mSampleRate; |
| size_t mFrameCount; |
| uint32_t mChannelMask; |
| uint16_t mChannelCount; |
| uint16_t mFrameSize; |
| uint32_t mFormat; |
| Condition mParamCond; |
| Vector<String8> mNewParameters; |
| status_t mParamStatus; |
| Vector<ConfigEvent *> mConfigEvents; |
| bool mStandby; |
| int mId; |
| bool mExiting; |
| }; |
| |
| // --- PlaybackThread --- |
| class PlaybackThread : public ThreadBase { |
| public: |
| |
| enum type { |
| MIXER, |
| DIRECT, |
| DUPLICATING |
| }; |
| |
| enum mixer_state { |
| MIXER_IDLE, |
| MIXER_TRACKS_ENABLED, |
| MIXER_TRACKS_READY |
| }; |
| |
| // playback track |
| class Track : public TrackBase { |
| public: |
| Track( const wp<ThreadBase>& thread, |
| const sp<Client>& client, |
| int streamType, |
| uint32_t sampleRate, |
| uint32_t format, |
| uint32_t channelMask, |
| int frameCount, |
| const sp<IMemory>& sharedBuffer, |
| int sessionId); |
| ~Track(); |
| |
| void dump(char* buffer, size_t size); |
| virtual status_t start(); |
| virtual void stop(); |
| void pause(); |
| |
| void flush(); |
| void destroy(); |
| void mute(bool); |
| void setVolume(float left, float right); |
| int name() const { |
| return mName; |
| } |
| |
| int type() const { |
| return mStreamType; |
| } |
| status_t attachAuxEffect(int EffectId); |
| void setAuxBuffer(int EffectId, int32_t *buffer); |
| int32_t *auxBuffer() { return mAuxBuffer; } |
| void setMainBuffer(int16_t *buffer) { mMainBuffer = buffer; } |
| int16_t *mainBuffer() { return mMainBuffer; } |
| int auxEffectId() { return mAuxEffectId; } |
| |
| |
| protected: |
| friend class ThreadBase; |
| friend class AudioFlinger; |
| friend class TrackHandle; |
| friend class PlaybackThread; |
| friend class MixerThread; |
| friend class DirectOutputThread; |
| |
| Track(const Track&); |
| Track& operator = (const Track&); |
| |
| virtual status_t getNextBuffer(AudioBufferProvider::Buffer* buffer); |
| bool isMuted() { return mMute; } |
| bool isPausing() const { |
| return mState == PAUSING; |
| } |
| bool isPaused() const { |
| return mState == PAUSED; |
| } |
| bool isReady() const; |
| void setPaused() { mState = PAUSED; } |
| void reset(); |
| |
| bool isOutputTrack() const { |
| return (mStreamType == AUDIO_STREAM_CNT); |
| } |
| |
| // we don't really need a lock for these |
| float mVolume[2]; |
| volatile bool mMute; |
| // FILLED state is used for suppressing volume ramp at begin of playing |
| enum {FS_FILLING, FS_FILLED, FS_ACTIVE}; |
| mutable uint8_t mFillingUpStatus; |
| int8_t mRetryCount; |
| sp<IMemory> mSharedBuffer; |
| bool mResetDone; |
| int mStreamType; |
| int mName; |
| int16_t *mMainBuffer; |
| int32_t *mAuxBuffer; |
| int mAuxEffectId; |
| bool mHasVolumeController; |
| }; // end of Track |
| |
| |
| // playback track |
| class OutputTrack : public Track { |
| public: |
| |
| class Buffer: public AudioBufferProvider::Buffer { |
| public: |
| int16_t *mBuffer; |
| }; |
| |
| OutputTrack( const wp<ThreadBase>& thread, |
| DuplicatingThread *sourceThread, |
| uint32_t sampleRate, |
| uint32_t format, |
| uint32_t channelMask, |
| int frameCount); |
| ~OutputTrack(); |
| |
| virtual status_t start(); |
| virtual void stop(); |
| bool write(int16_t* data, uint32_t frames); |
| bool bufferQueueEmpty() { return (mBufferQueue.size() == 0) ? true : false; } |
| bool isActive() { return mActive; } |
| wp<ThreadBase>& thread() { return mThread; } |
| |
| private: |
| |
| status_t obtainBuffer(AudioBufferProvider::Buffer* buffer, uint32_t waitTimeMs); |
| void clearBufferQueue(); |
| |
| // Maximum number of pending buffers allocated by OutputTrack::write() |
| static const uint8_t kMaxOverFlowBuffers = 10; |
| |
| Vector < Buffer* > mBufferQueue; |
| AudioBufferProvider::Buffer mOutBuffer; |
| bool mActive; |
| DuplicatingThread* mSourceThread; |
| }; // end of OutputTrack |
| |
| PlaybackThread (const sp<AudioFlinger>& audioFlinger, AudioStreamOut* output, int id, uint32_t device); |
| virtual ~PlaybackThread(); |
| |
| virtual status_t dump(int fd, const Vector<String16>& args); |
| |
| // Thread virtuals |
| virtual status_t readyToRun(); |
| virtual void onFirstRef(); |
| |
| virtual uint32_t latency() const; |
| |
| virtual status_t setMasterVolume(float value); |
| virtual status_t setMasterMute(bool muted); |
| |
| virtual float masterVolume() const; |
| virtual bool masterMute() const; |
| |
| virtual status_t setStreamVolume(int stream, float value); |
| virtual status_t setStreamMute(int stream, bool muted); |
| |
| virtual float streamVolume(int stream) const; |
| virtual bool streamMute(int stream) const; |
| |
| sp<Track> createTrack_l( |
| const sp<AudioFlinger::Client>& client, |
| int streamType, |
| uint32_t sampleRate, |
| uint32_t format, |
| uint32_t channelMask, |
| int frameCount, |
| const sp<IMemory>& sharedBuffer, |
| int sessionId, |
| status_t *status); |
| |
| AudioStreamOut* getOutput() { return mOutput; } |
| |
| virtual int type() const { return mType; } |
| void suspend() { mSuspended++; } |
| void restore() { if (mSuspended) mSuspended--; } |
| bool isSuspended() { return (mSuspended != 0); } |
| virtual String8 getParameters(const String8& keys); |
| virtual void audioConfigChanged_l(int event, int param = 0); |
| virtual status_t getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames); |
| int16_t *mixBuffer() { return mMixBuffer; }; |
| |
| sp<EffectHandle> createEffect_l( |
| const sp<AudioFlinger::Client>& client, |
| const sp<IEffectClient>& effectClient, |
| int32_t priority, |
| int sessionId, |
| effect_descriptor_t *desc, |
| int *enabled, |
| status_t *status); |
| void disconnectEffect(const sp< EffectModule>& effect, |
| const wp<EffectHandle>& handle); |
| |
| // return values for hasAudioSession (bit field) |
| enum effect_state { |
| EFFECT_SESSION = 0x1, // the audio session corresponds to at least one |
| // effect |
| TRACK_SESSION = 0x2 // the audio session corresponds to at least one |
| // track |
| }; |
| |
| uint32_t hasAudioSession(int sessionId); |
| sp<EffectChain> getEffectChain(int sessionId); |
| sp<EffectChain> getEffectChain_l(int sessionId); |
| status_t addEffectChain_l(const sp<EffectChain>& chain); |
| size_t removeEffectChain_l(const sp<EffectChain>& chain); |
| void lockEffectChains_l(Vector<sp <EffectChain> >& effectChains); |
| void unlockEffectChains(Vector<sp <EffectChain> >& effectChains); |
| |
| sp<AudioFlinger::EffectModule> getEffect_l(int sessionId, int effectId); |
| void detachAuxEffect_l(int effectId); |
| status_t attachAuxEffect(const sp<AudioFlinger::PlaybackThread::Track> track, |
| int EffectId); |
| status_t attachAuxEffect_l(const sp<AudioFlinger::PlaybackThread::Track> track, |
| int EffectId); |
| void setMode(uint32_t mode); |
| |
| status_t addEffect_l(const sp< EffectModule>& effect); |
| void removeEffect_l(const sp< EffectModule>& effect); |
| |
| uint32_t getStrategyForSession_l(int sessionId); |
| |
| struct stream_type_t { |
| stream_type_t() |
| : volume(1.0f), |
| mute(false) |
| { |
| } |
| float volume; |
| bool mute; |
| }; |
| |
| protected: |
| int mType; |
| int16_t* mMixBuffer; |
| int mSuspended; |
| int mBytesWritten; |
| bool mMasterMute; |
| SortedVector< wp<Track> > mActiveTracks; |
| |
| virtual int getTrackName_l() = 0; |
| virtual void deleteTrackName_l(int name) = 0; |
| virtual uint32_t activeSleepTimeUs() = 0; |
| virtual uint32_t idleSleepTimeUs() = 0; |
| virtual uint32_t suspendSleepTimeUs() = 0; |
| |
| private: |
| |
| friend class AudioFlinger; |
| friend class OutputTrack; |
| friend class Track; |
| friend class TrackBase; |
| friend class MixerThread; |
| friend class DirectOutputThread; |
| friend class DuplicatingThread; |
| |
| PlaybackThread(const Client&); |
| PlaybackThread& operator = (const PlaybackThread&); |
| |
| status_t addTrack_l(const sp<Track>& track); |
| void destroyTrack_l(const sp<Track>& track); |
| void removeTrack_l(const sp<Track>& track); |
| |
| void readOutputParameters(); |
| |
| uint32_t device() { return mDevice; } |
| |
| virtual status_t dumpInternals(int fd, const Vector<String16>& args); |
| status_t dumpTracks(int fd, const Vector<String16>& args); |
| status_t dumpEffectChains(int fd, const Vector<String16>& args); |
| |
| SortedVector< sp<Track> > mTracks; |
| // mStreamTypes[] uses 1 additionnal stream type internally for the OutputTrack used by DuplicatingThread |
| stream_type_t mStreamTypes[AUDIO_STREAM_CNT + 1]; |
| AudioStreamOut* mOutput; |
| float mMasterVolume; |
| nsecs_t mLastWriteTime; |
| int mNumWrites; |
| int mNumDelayedWrites; |
| bool mInWrite; |
| Vector< sp<EffectChain> > mEffectChains; |
| uint32_t mDevice; |
| }; |
| |
| class MixerThread : public PlaybackThread { |
| public: |
| MixerThread (const sp<AudioFlinger>& audioFlinger, |
| AudioStreamOut* output, |
| int id, |
| uint32_t device); |
| virtual ~MixerThread(); |
| |
| // Thread virtuals |
| virtual bool threadLoop(); |
| |
| void invalidateTracks(int streamType); |
| virtual bool checkForNewParameters_l(); |
| virtual status_t dumpInternals(int fd, const Vector<String16>& args); |
| |
| protected: |
| uint32_t prepareTracks_l(const SortedVector< wp<Track> >& activeTracks, |
| Vector< sp<Track> > *tracksToRemove); |
| virtual int getTrackName_l(); |
| virtual void deleteTrackName_l(int name); |
| virtual uint32_t activeSleepTimeUs(); |
| virtual uint32_t idleSleepTimeUs(); |
| virtual uint32_t suspendSleepTimeUs(); |
| |
| AudioMixer* mAudioMixer; |
| }; |
| |
| class DirectOutputThread : public PlaybackThread { |
| public: |
| |
| DirectOutputThread (const sp<AudioFlinger>& audioFlinger, AudioStreamOut* output, int id, uint32_t device); |
| ~DirectOutputThread(); |
| |
| // Thread virtuals |
| virtual bool threadLoop(); |
| |
| virtual bool checkForNewParameters_l(); |
| |
| protected: |
| virtual int getTrackName_l(); |
| virtual void deleteTrackName_l(int name); |
| virtual uint32_t activeSleepTimeUs(); |
| virtual uint32_t idleSleepTimeUs(); |
| virtual uint32_t suspendSleepTimeUs(); |
| |
| private: |
| void applyVolume(uint16_t leftVol, uint16_t rightVol, bool ramp); |
| |
| float mLeftVolFloat; |
| float mRightVolFloat; |
| uint16_t mLeftVolShort; |
| uint16_t mRightVolShort; |
| }; |
| |
| class DuplicatingThread : public MixerThread { |
| public: |
| DuplicatingThread (const sp<AudioFlinger>& audioFlinger, MixerThread* mainThread, int id); |
| ~DuplicatingThread(); |
| |
| // Thread virtuals |
| virtual bool threadLoop(); |
| void addOutputTrack(MixerThread* thread); |
| void removeOutputTrack(MixerThread* thread); |
| uint32_t waitTimeMs() { return mWaitTimeMs; } |
| protected: |
| virtual uint32_t activeSleepTimeUs(); |
| |
| private: |
| bool outputsReady(SortedVector< sp<OutputTrack> > &outputTracks); |
| void updateWaitTime(); |
| |
| SortedVector < sp<OutputTrack> > mOutputTracks; |
| uint32_t mWaitTimeMs; |
| }; |
| |
| PlaybackThread *checkPlaybackThread_l(int output) const; |
| MixerThread *checkMixerThread_l(int output) const; |
| RecordThread *checkRecordThread_l(int input) const; |
| float streamVolumeInternal(int stream) const { return mStreamTypes[stream].volume; } |
| void audioConfigChanged_l(int event, int ioHandle, void *param2); |
| |
| int nextUniqueId_l(); |
| status_t moveEffectChain_l(int session, |
| AudioFlinger::PlaybackThread *srcThread, |
| AudioFlinger::PlaybackThread *dstThread, |
| bool reRegister); |
| |
| friend class AudioBuffer; |
| |
| class TrackHandle : public android::BnAudioTrack { |
| public: |
| TrackHandle(const sp<PlaybackThread::Track>& track); |
| virtual ~TrackHandle(); |
| virtual status_t start(); |
| virtual void stop(); |
| virtual void flush(); |
| virtual void mute(bool); |
| virtual void pause(); |
| virtual void setVolume(float left, float right); |
| virtual sp<IMemory> getCblk() const; |
| virtual status_t attachAuxEffect(int effectId); |
| virtual status_t onTransact( |
| uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags); |
| private: |
| sp<PlaybackThread::Track> mTrack; |
| }; |
| |
| friend class Client; |
| friend class PlaybackThread::Track; |
| |
| |
| void removeClient_l(pid_t pid); |
| void removeNotificationClient(pid_t pid); |
| |
| |
| // record thread |
| class RecordThread : public ThreadBase, public AudioBufferProvider |
| { |
| public: |
| |
| // record track |
| class RecordTrack : public TrackBase { |
| public: |
| RecordTrack(const wp<ThreadBase>& thread, |
| const sp<Client>& client, |
| uint32_t sampleRate, |
| uint32_t format, |
| uint32_t channelMask, |
| int frameCount, |
| uint32_t flags, |
| int sessionId); |
| ~RecordTrack(); |
| |
| virtual status_t start(); |
| virtual void stop(); |
| |
| bool overflow() { bool tmp = mOverflow; mOverflow = false; return tmp; } |
| bool setOverflow() { bool tmp = mOverflow; mOverflow = true; return tmp; } |
| |
| void dump(char* buffer, size_t size); |
| private: |
| friend class AudioFlinger; |
| friend class RecordThread; |
| |
| RecordTrack(const RecordTrack&); |
| RecordTrack& operator = (const RecordTrack&); |
| |
| virtual status_t getNextBuffer(AudioBufferProvider::Buffer* buffer); |
| |
| bool mOverflow; |
| }; |
| |
| |
| RecordThread(const sp<AudioFlinger>& audioFlinger, |
| AudioStreamIn *input, |
| uint32_t sampleRate, |
| uint32_t channels, |
| int id); |
| ~RecordThread(); |
| |
| virtual bool threadLoop(); |
| virtual status_t readyToRun() { return NO_ERROR; } |
| virtual void onFirstRef(); |
| |
| status_t start(RecordTrack* recordTrack); |
| void stop(RecordTrack* recordTrack); |
| status_t dump(int fd, const Vector<String16>& args); |
| AudioStreamIn* getInput() { return mInput; } |
| |
| virtual status_t getNextBuffer(AudioBufferProvider::Buffer* buffer); |
| virtual void releaseBuffer(AudioBufferProvider::Buffer* buffer); |
| virtual bool checkForNewParameters_l(); |
| virtual String8 getParameters(const String8& keys); |
| virtual void audioConfigChanged_l(int event, int param = 0); |
| void readInputParameters(); |
| virtual unsigned int getInputFramesLost(); |
| |
| private: |
| RecordThread(); |
| AudioStreamIn *mInput; |
| sp<RecordTrack> mActiveTrack; |
| Condition mStartStopCond; |
| AudioResampler *mResampler; |
| int32_t *mRsmpOutBuffer; |
| int16_t *mRsmpInBuffer; |
| size_t mRsmpInIndex; |
| size_t mInputBytes; |
| int mReqChannelCount; |
| uint32_t mReqSampleRate; |
| ssize_t mBytesRead; |
| }; |
| |
| class RecordHandle : public android::BnAudioRecord { |
| public: |
| RecordHandle(const sp<RecordThread::RecordTrack>& recordTrack); |
| virtual ~RecordHandle(); |
| virtual status_t start(); |
| virtual void stop(); |
| virtual sp<IMemory> getCblk() const; |
| virtual status_t onTransact( |
| uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags); |
| private: |
| sp<RecordThread::RecordTrack> mRecordTrack; |
| }; |
| |
| //--- Audio Effect Management |
| |
| // 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 -> EffectModule |
| |
| // 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 RefBase { |
| public: |
| EffectModule(const wp<ThreadBase>& wThread, |
| const wp<AudioFlinger::EffectChain>& chain, |
| effect_descriptor_t *desc, |
| int id, |
| int sessionId); |
| ~EffectModule(); |
| |
| enum effect_state { |
| IDLE, |
| RESTART, |
| STARTING, |
| ACTIVE, |
| STOPPING, |
| STOPPED |
| }; |
| |
| int id() { return mId; } |
| void process(); |
| void updateState(); |
| status_t command(uint32_t cmdCode, |
| uint32_t cmdSize, |
| void *pCmdData, |
| uint32_t *replySize, |
| void *pReplyData); |
| |
| void reset_l(); |
| status_t configure(); |
| status_t init(); |
| uint32_t state() { |
| return mState; |
| } |
| uint32_t status() { |
| return mStatus; |
| } |
| int sessionId() { |
| return mSessionId; |
| } |
| status_t setEnabled(bool enabled); |
| bool isEnabled(); |
| bool isProcessEnabled(); |
| |
| void setInBuffer(int16_t *buffer) { mConfig.inputCfg.buffer.s16 = buffer; } |
| int16_t *inBuffer() { return mConfig.inputCfg.buffer.s16; } |
| void setOutBuffer(int16_t *buffer) { mConfig.outputCfg.buffer.s16 = buffer; } |
| int16_t *outBuffer() { return mConfig.outputCfg.buffer.s16; } |
| void setChain(const wp<EffectChain>& chain) { mChain = chain; } |
| void setThread(const wp<ThreadBase>& thread) { mThread = thread; } |
| |
| status_t addHandle(sp<EffectHandle>& handle); |
| void disconnect(const wp<EffectHandle>& handle); |
| size_t removeHandle (const wp<EffectHandle>& handle); |
| |
| effect_descriptor_t& desc() { return mDescriptor; } |
| wp<EffectChain>& chain() { return mChain; } |
| |
| status_t setDevice(uint32_t device); |
| status_t setVolume(uint32_t *left, uint32_t *right, bool controller); |
| status_t setMode(uint32_t mode); |
| |
| status_t dump(int fd, const Vector<String16>& args); |
| |
| protected: |
| |
| // Maximum time allocated to effect engines to complete the turn off sequence |
| static const uint32_t MAX_DISABLE_TIME_MS = 10000; |
| |
| EffectModule(const EffectModule&); |
| EffectModule& operator = (const EffectModule&); |
| |
| status_t start_l(); |
| status_t stop_l(); |
| |
| Mutex mLock; // mutex for process, commands and handles list protection |
| wp<ThreadBase> mThread; // parent thread |
| wp<EffectChain> mChain; // parent effect chain |
| int mId; // this instance unique ID |
| int mSessionId; // audio session ID |
| effect_descriptor_t mDescriptor;// effect descriptor received from effect engine |
| effect_config_t mConfig; // input and output audio configuration |
| effect_handle_t mEffectInterface; // Effect module C API |
| status_t mStatus; // initialization status |
| uint32_t mState; // current activation state (effect_state) |
| Vector< wp<EffectHandle> > mHandles; // list of client handles |
| 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. |
| }; |
| |
| // 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::BnEffect { |
| public: |
| |
| EffectHandle(const sp<EffectModule>& effect, |
| const sp<AudioFlinger::Client>& client, |
| const sp<IEffectClient>& effectClient, |
| int32_t priority); |
| virtual ~EffectHandle(); |
| |
| // IEffect |
| virtual status_t enable(); |
| virtual status_t disable(); |
| virtual status_t command(uint32_t cmdCode, |
| uint32_t cmdSize, |
| void *pCmdData, |
| uint32_t *replySize, |
| void *pReplyData); |
| virtual void disconnect(); |
| virtual sp<IMemory> getCblk() const; |
| virtual status_t onTransact(uint32_t code, const Parcel& data, |
| Parcel* reply, uint32_t flags); |
| |
| |
| // Give or take control of effect module |
| void setControl(bool hasControl, bool signal); |
| void commandExecuted(uint32_t cmdCode, |
| uint32_t cmdSize, |
| void *pCmdData, |
| uint32_t replySize, |
| void *pReplyData); |
| void setEnabled(bool enabled); |
| |
| // Getters |
| int id() { return mEffect->id(); } |
| int priority() { return mPriority; } |
| bool hasControl() { return mHasControl; } |
| sp<EffectModule> effect() { return mEffect; } |
| |
| void dump(char* buffer, size_t size); |
| |
| protected: |
| |
| EffectHandle(const EffectHandle&); |
| EffectHandle& operator =(const EffectHandle&); |
| |
| sp<EffectModule> mEffect; // pointer to controlled EffectModule |
| sp<IEffectClient> mEffectClient; // callback interface for client notifications |
| sp<Client> mClient; // client for shared memory allocation |
| 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 |
| }; |
| |
| // 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 EffecChain with session ID 0 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 != 0), 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, int sessionId); |
| ~EffectChain(); |
| |
| void process_l(); |
| |
| void lock() { |
| mLock.lock(); |
| } |
| void unlock() { |
| mLock.unlock(); |
| } |
| |
| status_t addEffect_l(const sp<EffectModule>& handle); |
| size_t removeEffect_l(const sp<EffectModule>& handle); |
| |
| int sessionId() { |
| return mSessionId; |
| } |
| |
| sp<EffectModule> getEffectFromDesc_l(effect_descriptor_t *descriptor); |
| sp<EffectModule> getEffectFromId_l(int id); |
| bool setVolume_l(uint32_t *left, uint32_t *right); |
| void setDevice_l(uint32_t device); |
| void setMode_l(uint32_t mode); |
| |
| void setInBuffer(int16_t *buffer, bool ownsBuffer = false) { |
| mInBuffer = buffer; |
| mOwnInBuffer = ownsBuffer; |
| } |
| int16_t *inBuffer() { |
| return mInBuffer; |
| } |
| void setOutBuffer(int16_t *buffer) { |
| mOutBuffer = buffer; |
| } |
| int16_t *outBuffer() { |
| return mOutBuffer; |
| } |
| |
| void incTrackCnt() { android_atomic_inc(&mTrackCnt); } |
| void decTrackCnt() { android_atomic_dec(&mTrackCnt); } |
| int32_t trackCnt() { return mTrackCnt;} |
| |
| void incActiveTrackCnt() { android_atomic_inc(&mActiveTrackCnt); } |
| void decActiveTrackCnt() { android_atomic_dec(&mActiveTrackCnt); } |
| int32_t activeTrackCnt() { return mActiveTrackCnt;} |
| |
| uint32_t strategy() { return mStrategy; } |
| void setStrategy(uint32_t strategy) |
| { mStrategy = strategy; } |
| |
| status_t dump(int fd, const Vector<String16>& args); |
| |
| protected: |
| |
| EffectChain(const EffectChain&); |
| EffectChain& operator =(const EffectChain&); |
| |
| wp<ThreadBase> mThread; // parent mixer thread |
| Mutex mLock; // mutex protecting effect list |
| Vector<sp<EffectModule> > mEffects; // list of effect modules |
| int mSessionId; // audio session ID |
| int16_t *mInBuffer; // chain input buffer |
| int16_t *mOutBuffer; // chain output buffer |
| volatile int32_t mActiveTrackCnt; // number of active tracks connected |
| volatile int32_t mTrackCnt; // number of tracks connected |
| bool mOwnInBuffer; // true if the chain owns its input buffer |
| 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 |
| uint32_t mStrategy; // strategy for this effect chain |
| }; |
| |
| struct AudioStreamOut { |
| audio_hw_device_t *hwDev; |
| audio_stream_out_t *stream; |
| |
| AudioStreamOut(audio_hw_device_t *dev, audio_stream_out_t *out) : |
| hwDev(dev), stream(out) {} |
| }; |
| |
| struct AudioStreamIn { |
| audio_hw_device_t *hwDev; |
| audio_stream_in_t *stream; |
| |
| AudioStreamIn(audio_hw_device_t *dev, audio_stream_in_t *in) : |
| hwDev(dev), stream(in) {} |
| }; |
| |
| friend class RecordThread; |
| friend class PlaybackThread; |
| |
| mutable Mutex mLock; |
| |
| DefaultKeyedVector< pid_t, wp<Client> > mClients; |
| |
| mutable Mutex mHardwareLock; |
| audio_hw_device_t* mPrimaryHardwareDev; |
| Vector<audio_hw_device_t*> mAudioHwDevs; |
| mutable int mHardwareStatus; |
| |
| |
| DefaultKeyedVector< int, sp<PlaybackThread> > mPlaybackThreads; |
| PlaybackThread::stream_type_t mStreamTypes[AUDIO_STREAM_CNT]; |
| float mMasterVolume; |
| bool mMasterMute; |
| |
| DefaultKeyedVector< int, sp<RecordThread> > mRecordThreads; |
| |
| DefaultKeyedVector< pid_t, sp<NotificationClient> > mNotificationClients; |
| volatile int32_t mNextUniqueId; |
| uint32_t mMode; |
| |
| }; |
| |
| |
| // ---------------------------------------------------------------------------- |
| |
| }; // namespace android |
| |
| #endif // ANDROID_AUDIO_FLINGER_H |
