AudioFlinger.h revision c3e6572e0ff535932b1f6ffb7bcf5acd891675fb
1/* //device/include/server/AudioFlinger/AudioFlinger.h 2** 3** Copyright 2007, The Android Open Source Project 4** 5** Licensed under the Apache License, Version 2.0 (the "License"); 6** you may not use this file except in compliance with the License. 7** You may obtain a copy of the License at 8** 9** http://www.apache.org/licenses/LICENSE-2.0 10** 11** Unless required by applicable law or agreed to in writing, software 12** distributed under the License is distributed on an "AS IS" BASIS, 13** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14** See the License for the specific language governing permissions and 15** limitations under the License. 16*/ 17 18#ifndef ANDROID_AUDIO_FLINGER_H 19#define ANDROID_AUDIO_FLINGER_H 20 21#include <stdint.h> 22#include <sys/types.h> 23#include <limits.h> 24 25#include <media/IAudioFlinger.h> 26#include <media/IAudioFlingerClient.h> 27#include <media/IAudioTrack.h> 28#include <media/IAudioRecord.h> 29#include <media/AudioTrack.h> 30 31#include <utils/Atomic.h> 32#include <utils/Errors.h> 33#include <utils/threads.h> 34#include <utils/SortedVector.h> 35#include <utils/TypeHelpers.h> 36#include <utils/Vector.h> 37 38#include <binder/BinderService.h> 39#include <binder/MemoryDealer.h> 40 41#include <system/audio.h> 42#include <hardware/audio.h> 43 44#include "AudioBufferProvider.h" 45 46#include <powermanager/IPowerManager.h> 47 48namespace android { 49 50class audio_track_cblk_t; 51class effect_param_cblk_t; 52class AudioMixer; 53class AudioBuffer; 54class AudioResampler; 55 56// ---------------------------------------------------------------------------- 57 58#define LIKELY( exp ) (__builtin_expect( (exp) != 0, true )) 59#define UNLIKELY( exp ) (__builtin_expect( (exp) != 0, false )) 60 61 62// ---------------------------------------------------------------------------- 63 64static const nsecs_t kStandbyTimeInNsecs = seconds(3); 65 66class AudioFlinger : 67 public BinderService<AudioFlinger>, 68 public BnAudioFlinger 69{ 70 friend class BinderService<AudioFlinger>; 71public: 72 static char const* getServiceName() { return "media.audio_flinger"; } 73 74 virtual status_t dump(int fd, const Vector<String16>& args); 75 76 // IAudioFlinger interface 77 virtual sp<IAudioTrack> createTrack( 78 pid_t pid, 79 int streamType, 80 uint32_t sampleRate, 81 uint32_t format, 82 uint32_t channelMask, 83 int frameCount, 84 uint32_t flags, 85 const sp<IMemory>& sharedBuffer, 86 int output, 87 int *sessionId, 88 status_t *status); 89 90 virtual uint32_t sampleRate(int output) const; 91 virtual int channelCount(int output) const; 92 virtual uint32_t format(int output) const; 93 virtual size_t frameCount(int output) const; 94 virtual uint32_t latency(int output) const; 95 96 virtual status_t setMasterVolume(float value); 97 virtual status_t setMasterMute(bool muted); 98 99 virtual float masterVolume() const; 100 virtual bool masterMute() const; 101 102 virtual status_t setStreamVolume(int stream, float value, int output); 103 virtual status_t setStreamMute(int stream, bool muted); 104 105 virtual float streamVolume(int stream, int output) const; 106 virtual bool streamMute(int stream) const; 107 108 virtual status_t setMode(int mode); 109 110 virtual status_t setMicMute(bool state); 111 virtual bool getMicMute() const; 112 113 virtual status_t setParameters(int ioHandle, const String8& keyValuePairs); 114 virtual String8 getParameters(int ioHandle, const String8& keys); 115 116 virtual void registerClient(const sp<IAudioFlingerClient>& client); 117 118 virtual size_t getInputBufferSize(uint32_t sampleRate, int format, int channelCount); 119 virtual unsigned int getInputFramesLost(int ioHandle); 120 121 virtual int openOutput(uint32_t *pDevices, 122 uint32_t *pSamplingRate, 123 uint32_t *pFormat, 124 uint32_t *pChannels, 125 uint32_t *pLatencyMs, 126 uint32_t flags); 127 128 virtual int openDuplicateOutput(int output1, int output2); 129 130 virtual status_t closeOutput(int output); 131 132 virtual status_t suspendOutput(int output); 133 134 virtual status_t restoreOutput(int output); 135 136 virtual int openInput(uint32_t *pDevices, 137 uint32_t *pSamplingRate, 138 uint32_t *pFormat, 139 uint32_t *pChannels, 140 uint32_t acoustics); 141 142 virtual status_t closeInput(int input); 143 144 virtual status_t setStreamOutput(uint32_t stream, int output); 145 146 virtual status_t setVoiceVolume(float volume); 147 148 virtual status_t getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames, int output); 149 150 virtual int newAudioSessionId(); 151 152 virtual status_t queryNumberEffects(uint32_t *numEffects); 153 154 virtual status_t queryEffect(uint32_t index, effect_descriptor_t *descriptor); 155 156 virtual status_t getEffectDescriptor(effect_uuid_t *pUuid, effect_descriptor_t *descriptor); 157 158 virtual sp<IEffect> createEffect(pid_t pid, 159 effect_descriptor_t *pDesc, 160 const sp<IEffectClient>& effectClient, 161 int32_t priority, 162 int io, 163 int sessionId, 164 status_t *status, 165 int *id, 166 int *enabled); 167 168 virtual status_t moveEffects(int sessionId, int srcOutput, int dstOutput); 169 170 enum hardware_call_state { 171 AUDIO_HW_IDLE = 0, 172 AUDIO_HW_INIT, 173 AUDIO_HW_OUTPUT_OPEN, 174 AUDIO_HW_OUTPUT_CLOSE, 175 AUDIO_HW_INPUT_OPEN, 176 AUDIO_HW_INPUT_CLOSE, 177 AUDIO_HW_STANDBY, 178 AUDIO_HW_SET_MASTER_VOLUME, 179 AUDIO_HW_GET_ROUTING, 180 AUDIO_HW_SET_ROUTING, 181 AUDIO_HW_GET_MODE, 182 AUDIO_HW_SET_MODE, 183 AUDIO_HW_GET_MIC_MUTE, 184 AUDIO_HW_SET_MIC_MUTE, 185 AUDIO_SET_VOICE_VOLUME, 186 AUDIO_SET_PARAMETER, 187 }; 188 189 // record interface 190 virtual sp<IAudioRecord> openRecord( 191 pid_t pid, 192 int input, 193 uint32_t sampleRate, 194 uint32_t format, 195 uint32_t channelMask, 196 int frameCount, 197 uint32_t flags, 198 int *sessionId, 199 status_t *status); 200 201 virtual status_t onTransact( 202 uint32_t code, 203 const Parcel& data, 204 Parcel* reply, 205 uint32_t flags); 206 207 uint32_t getMode() { return mMode; } 208 209 bool btNrec() { return mBtNrec; } 210 211private: 212 AudioFlinger(); 213 virtual ~AudioFlinger(); 214 215 status_t initCheck() const; 216 virtual void onFirstRef(); 217 audio_hw_device_t* findSuitableHwDev_l(uint32_t devices); 218 219 // Internal dump utilites. 220 status_t dumpPermissionDenial(int fd, const Vector<String16>& args); 221 status_t dumpClients(int fd, const Vector<String16>& args); 222 status_t dumpInternals(int fd, const Vector<String16>& args); 223 224 // --- Client --- 225 class Client : public RefBase { 226 public: 227 Client(const sp<AudioFlinger>& audioFlinger, pid_t pid); 228 virtual ~Client(); 229 const sp<MemoryDealer>& heap() const; 230 pid_t pid() const { return mPid; } 231 sp<AudioFlinger> audioFlinger() { return mAudioFlinger; } 232 233 private: 234 Client(const Client&); 235 Client& operator = (const Client&); 236 sp<AudioFlinger> mAudioFlinger; 237 sp<MemoryDealer> mMemoryDealer; 238 pid_t mPid; 239 }; 240 241 // --- Notification Client --- 242 class NotificationClient : public IBinder::DeathRecipient { 243 public: 244 NotificationClient(const sp<AudioFlinger>& audioFlinger, 245 const sp<IAudioFlingerClient>& client, 246 pid_t pid); 247 virtual ~NotificationClient(); 248 249 sp<IAudioFlingerClient> client() { return mClient; } 250 251 // IBinder::DeathRecipient 252 virtual void binderDied(const wp<IBinder>& who); 253 254 private: 255 NotificationClient(const NotificationClient&); 256 NotificationClient& operator = (const NotificationClient&); 257 258 sp<AudioFlinger> mAudioFlinger; 259 pid_t mPid; 260 sp<IAudioFlingerClient> mClient; 261 }; 262 263 class TrackHandle; 264 class RecordHandle; 265 class RecordThread; 266 class PlaybackThread; 267 class MixerThread; 268 class DirectOutputThread; 269 class DuplicatingThread; 270 class Track; 271 class RecordTrack; 272 class EffectModule; 273 class EffectHandle; 274 class EffectChain; 275 struct AudioStreamOut; 276 struct AudioStreamIn; 277 278 class ThreadBase : public Thread { 279 public: 280 ThreadBase (const sp<AudioFlinger>& audioFlinger, int id, uint32_t device); 281 virtual ~ThreadBase(); 282 283 284 enum type { 285 MIXER, // Thread class is MixerThread 286 DIRECT, // Thread class is DirectOutputThread 287 DUPLICATING, // Thread class is DuplicatingThread 288 RECORD // Thread class is RecordThread 289 }; 290 291 status_t dumpBase(int fd, const Vector<String16>& args); 292 status_t dumpEffectChains(int fd, const Vector<String16>& args); 293 294 void clearPowerManager(); 295 296 // base for record and playback 297 class TrackBase : public AudioBufferProvider, public RefBase { 298 299 public: 300 enum track_state { 301 IDLE, 302 TERMINATED, 303 STOPPED, 304 RESUMING, 305 ACTIVE, 306 PAUSING, 307 PAUSED 308 }; 309 310 enum track_flags { 311 STEPSERVER_FAILED = 0x01, // StepServer could not acquire cblk->lock mutex 312 SYSTEM_FLAGS_MASK = 0x0000ffffUL, 313 // The upper 16 bits are used for track-specific flags. 314 }; 315 316 TrackBase(const wp<ThreadBase>& thread, 317 const sp<Client>& client, 318 uint32_t sampleRate, 319 uint32_t format, 320 uint32_t channelMask, 321 int frameCount, 322 uint32_t flags, 323 const sp<IMemory>& sharedBuffer, 324 int sessionId); 325 ~TrackBase(); 326 327 virtual status_t start() = 0; 328 virtual void stop() = 0; 329 sp<IMemory> getCblk() const; 330 audio_track_cblk_t* cblk() const { return mCblk; } 331 int sessionId() { return mSessionId; } 332 333 protected: 334 friend class ThreadBase; 335 friend class RecordHandle; 336 friend class PlaybackThread; 337 friend class RecordThread; 338 friend class MixerThread; 339 friend class DirectOutputThread; 340 341 TrackBase(const TrackBase&); 342 TrackBase& operator = (const TrackBase&); 343 344 virtual status_t getNextBuffer(AudioBufferProvider::Buffer* buffer) = 0; 345 virtual void releaseBuffer(AudioBufferProvider::Buffer* buffer); 346 347 uint32_t format() const { 348 return mFormat; 349 } 350 351 int channelCount() const ; 352 353 uint32_t channelMask() const; 354 355 int sampleRate() const; 356 357 void* getBuffer(uint32_t offset, uint32_t frames) const; 358 359 bool isStopped() const { 360 return mState == STOPPED; 361 } 362 363 bool isTerminated() const { 364 return mState == TERMINATED; 365 } 366 367 bool step(); 368 void reset(); 369 370 wp<ThreadBase> mThread; 371 sp<Client> mClient; 372 sp<IMemory> mCblkMemory; 373 audio_track_cblk_t* mCblk; 374 void* mBuffer; 375 void* mBufferEnd; 376 uint32_t mFrameCount; 377 // we don't really need a lock for these 378 int mState; 379 int mClientTid; 380 uint32_t mFormat; 381 uint32_t mFlags; 382 int mSessionId; 383 uint8_t mChannelCount; 384 uint32_t mChannelMask; 385 }; 386 387 class ConfigEvent { 388 public: 389 ConfigEvent() : mEvent(0), mParam(0) {} 390 391 int mEvent; 392 int mParam; 393 }; 394 395 class PMDeathRecipient : public IBinder::DeathRecipient { 396 public: 397 PMDeathRecipient(const wp<ThreadBase>& thread) : mThread(thread) {} 398 virtual ~PMDeathRecipient() {} 399 400 // IBinder::DeathRecipient 401 virtual void binderDied(const wp<IBinder>& who); 402 403 private: 404 PMDeathRecipient(const PMDeathRecipient&); 405 PMDeathRecipient& operator = (const PMDeathRecipient&); 406 407 wp<ThreadBase> mThread; 408 }; 409 410 virtual status_t initCheck() const = 0; 411 int type() const { return mType; } 412 uint32_t sampleRate() const; 413 int channelCount() const; 414 uint32_t format() const; 415 size_t frameCount() const; 416 void wakeUp() { mWaitWorkCV.broadcast(); } 417 void exit(); 418 virtual bool checkForNewParameters_l() = 0; 419 virtual status_t setParameters(const String8& keyValuePairs); 420 virtual String8 getParameters(const String8& keys) = 0; 421 virtual void audioConfigChanged_l(int event, int param = 0) = 0; 422 void sendConfigEvent(int event, int param = 0); 423 void sendConfigEvent_l(int event, int param = 0); 424 void processConfigEvents(); 425 int id() const { return mId;} 426 bool standby() { return mStandby; } 427 uint32_t device() { return mDevice; } 428 virtual audio_stream_t* stream() = 0; 429 430 sp<EffectHandle> createEffect_l( 431 const sp<AudioFlinger::Client>& client, 432 const sp<IEffectClient>& effectClient, 433 int32_t priority, 434 int sessionId, 435 effect_descriptor_t *desc, 436 int *enabled, 437 status_t *status); 438 void disconnectEffect(const sp< EffectModule>& effect, 439 const wp<EffectHandle>& handle); 440 441 // return values for hasAudioSession (bit field) 442 enum effect_state { 443 EFFECT_SESSION = 0x1, // the audio session corresponds to at least one 444 // effect 445 TRACK_SESSION = 0x2 // the audio session corresponds to at least one 446 // track 447 }; 448 449 // get effect chain corresponding to session Id. 450 sp<EffectChain> getEffectChain(int sessionId); 451 // same as getEffectChain() but must be called with ThreadBase mutex locked 452 sp<EffectChain> getEffectChain_l(int sessionId); 453 // add an effect chain to the chain list (mEffectChains) 454 virtual status_t addEffectChain_l(const sp<EffectChain>& chain) = 0; 455 // remove an effect chain from the chain list (mEffectChains) 456 virtual size_t removeEffectChain_l(const sp<EffectChain>& chain) = 0; 457 // lock mall effect chains Mutexes. Must be called before releasing the 458 // ThreadBase mutex before processing the mixer and effects. This guarantees the 459 // integrity of the chains during the process. 460 void lockEffectChains_l(Vector<sp <EffectChain> >& effectChains); 461 // unlock effect chains after process 462 void unlockEffectChains(Vector<sp <EffectChain> >& effectChains); 463 // set audio mode to all effect chains 464 void setMode(uint32_t mode); 465 // get effect module with corresponding ID on specified audio session 466 sp<AudioFlinger::EffectModule> getEffect_l(int sessionId, int effectId); 467 // add and effect module. Also creates the effect chain is none exists for 468 // the effects audio session 469 status_t addEffect_l(const sp< EffectModule>& effect); 470 // remove and effect module. Also removes the effect chain is this was the last 471 // effect 472 void removeEffect_l(const sp< EffectModule>& effect); 473 // detach all tracks connected to an auxiliary effect 474 virtual void detachAuxEffect_l(int effectId) {} 475 // returns either EFFECT_SESSION if effects on this audio session exist in one 476 // chain, or TRACK_SESSION if tracks on this audio session exist, or both 477 virtual uint32_t hasAudioSession(int sessionId) = 0; 478 // the value returned by default implementation is not important as the 479 // strategy is only meaningful for PlaybackThread which implements this method 480 virtual uint32_t getStrategyForSession_l(int sessionId) { return 0; } 481 482 // suspend or restore effect according to the type of effect passed. a NULL 483 // type pointer means suspend all effects in the session 484 void setEffectSuspended(const effect_uuid_t *type, 485 bool suspend, 486 int sessionId = AUDIO_SESSION_OUTPUT_MIX); 487 // check if some effects must be suspended/restored when an effect is enabled 488 // or disabled 489 virtual void checkSuspendOnEffectEnabled(const sp<EffectModule>& effect, 490 bool enabled, 491 int sessionId = AUDIO_SESSION_OUTPUT_MIX); 492 493 mutable Mutex mLock; 494 495 protected: 496 497 // entry describing an effect being suspended in mSuspendedSessions keyed vector 498 class SuspendedSessionDesc : public RefBase { 499 public: 500 SuspendedSessionDesc() : mRefCount(0) {} 501 502 int mRefCount; // number of active suspend requests 503 effect_uuid_t mType; // effect type UUID 504 }; 505 506 void acquireWakeLock(); 507 void acquireWakeLock_l(); 508 void releaseWakeLock(); 509 void releaseWakeLock_l(); 510 void setEffectSuspended_l(const effect_uuid_t *type, 511 bool suspend, 512 int sessionId = AUDIO_SESSION_OUTPUT_MIX); 513 // updated mSuspendedSessions when an effect suspended or restored 514 void updateSuspendedSessions_l(const effect_uuid_t *type, 515 bool suspend, 516 int sessionId); 517 // check if some effects must be suspended when an effect chain is added 518 void checkSuspendOnAddEffectChain_l(const sp<EffectChain>& chain); 519 // updated mSuspendedSessions when an effect chain is removed 520 void updateSuspendedSessionsOnRemoveEffectChain_l(const sp<EffectChain>& chain); 521 522 friend class Track; 523 friend class TrackBase; 524 friend class PlaybackThread; 525 friend class MixerThread; 526 friend class DirectOutputThread; 527 friend class DuplicatingThread; 528 friend class RecordThread; 529 friend class RecordTrack; 530 531 int mType; 532 Condition mWaitWorkCV; 533 sp<AudioFlinger> mAudioFlinger; 534 uint32_t mSampleRate; 535 size_t mFrameCount; 536 uint32_t mChannelMask; 537 uint16_t mChannelCount; 538 uint16_t mFrameSize; 539 uint32_t mFormat; 540 Condition mParamCond; 541 Vector<String8> mNewParameters; 542 status_t mParamStatus; 543 Vector<ConfigEvent *> mConfigEvents; 544 bool mStandby; 545 int mId; 546 bool mExiting; 547 Vector< sp<EffectChain> > mEffectChains; 548 uint32_t mDevice; // output device for PlaybackThread 549 // input + output devices for RecordThread 550 static const int kNameLength = 32; 551 char mName[kNameLength]; 552 sp<IPowerManager> mPowerManager; 553 sp<IBinder> mWakeLockToken; 554 sp<PMDeathRecipient> mDeathRecipient; 555 // list of suspended effects per session and per type. The first vector is 556 // keyed by session ID, the second by type UUID timeLow field 557 KeyedVector< int, KeyedVector< int, sp<SuspendedSessionDesc> > > mSuspendedSessions; 558 }; 559 560 // --- PlaybackThread --- 561 class PlaybackThread : public ThreadBase { 562 public: 563 564 enum mixer_state { 565 MIXER_IDLE, 566 MIXER_TRACKS_ENABLED, 567 MIXER_TRACKS_READY 568 }; 569 570 // playback track 571 class Track : public TrackBase { 572 public: 573 Track( const wp<ThreadBase>& thread, 574 const sp<Client>& client, 575 int streamType, 576 uint32_t sampleRate, 577 uint32_t format, 578 uint32_t channelMask, 579 int frameCount, 580 const sp<IMemory>& sharedBuffer, 581 int sessionId); 582 ~Track(); 583 584 void dump(char* buffer, size_t size); 585 virtual status_t start(); 586 virtual void stop(); 587 void pause(); 588 589 void flush(); 590 void destroy(); 591 void mute(bool); 592 void setVolume(float left, float right); 593 int name() const { 594 return mName; 595 } 596 597 int type() const { 598 return mStreamType; 599 } 600 status_t attachAuxEffect(int EffectId); 601 void setAuxBuffer(int EffectId, int32_t *buffer); 602 int32_t *auxBuffer() { return mAuxBuffer; } 603 void setMainBuffer(int16_t *buffer) { mMainBuffer = buffer; } 604 int16_t *mainBuffer() { return mMainBuffer; } 605 int auxEffectId() { return mAuxEffectId; } 606 607 608 protected: 609 friend class ThreadBase; 610 friend class AudioFlinger; 611 friend class TrackHandle; 612 friend class PlaybackThread; 613 friend class MixerThread; 614 friend class DirectOutputThread; 615 616 Track(const Track&); 617 Track& operator = (const Track&); 618 619 virtual status_t getNextBuffer(AudioBufferProvider::Buffer* buffer); 620 bool isMuted() { return mMute; } 621 bool isPausing() const { 622 return mState == PAUSING; 623 } 624 bool isPaused() const { 625 return mState == PAUSED; 626 } 627 bool isReady() const; 628 void setPaused() { mState = PAUSED; } 629 void reset(); 630 631 bool isOutputTrack() const { 632 return (mStreamType == AUDIO_STREAM_CNT); 633 } 634 635 // we don't really need a lock for these 636 float mVolume[2]; 637 volatile bool mMute; 638 // FILLED state is used for suppressing volume ramp at begin of playing 639 enum {FS_FILLING, FS_FILLED, FS_ACTIVE}; 640 mutable uint8_t mFillingUpStatus; 641 int8_t mRetryCount; 642 sp<IMemory> mSharedBuffer; 643 bool mResetDone; 644 int mStreamType; 645 int mName; 646 int16_t *mMainBuffer; 647 int32_t *mAuxBuffer; 648 int mAuxEffectId; 649 bool mHasVolumeController; 650 }; // end of Track 651 652 653 // playback track 654 class OutputTrack : public Track { 655 public: 656 657 class Buffer: public AudioBufferProvider::Buffer { 658 public: 659 int16_t *mBuffer; 660 }; 661 662 OutputTrack( const wp<ThreadBase>& thread, 663 DuplicatingThread *sourceThread, 664 uint32_t sampleRate, 665 uint32_t format, 666 uint32_t channelMask, 667 int frameCount); 668 ~OutputTrack(); 669 670 virtual status_t start(); 671 virtual void stop(); 672 bool write(int16_t* data, uint32_t frames); 673 bool bufferQueueEmpty() { return (mBufferQueue.size() == 0) ? true : false; } 674 bool isActive() { return mActive; } 675 wp<ThreadBase>& thread() { return mThread; } 676 677 private: 678 679 status_t obtainBuffer(AudioBufferProvider::Buffer* buffer, uint32_t waitTimeMs); 680 void clearBufferQueue(); 681 682 // Maximum number of pending buffers allocated by OutputTrack::write() 683 static const uint8_t kMaxOverFlowBuffers = 10; 684 685 Vector < Buffer* > mBufferQueue; 686 AudioBufferProvider::Buffer mOutBuffer; 687 bool mActive; 688 DuplicatingThread* mSourceThread; 689 }; // end of OutputTrack 690 691 PlaybackThread (const sp<AudioFlinger>& audioFlinger, AudioStreamOut* output, int id, uint32_t device); 692 virtual ~PlaybackThread(); 693 694 virtual status_t dump(int fd, const Vector<String16>& args); 695 696 // Thread virtuals 697 virtual status_t readyToRun(); 698 virtual void onFirstRef(); 699 700 virtual status_t initCheck() const { return (mOutput == 0) ? NO_INIT : NO_ERROR; } 701 702 virtual uint32_t latency() const; 703 704 virtual status_t setMasterVolume(float value); 705 virtual status_t setMasterMute(bool muted); 706 707 virtual float masterVolume() const; 708 virtual bool masterMute() const; 709 710 virtual status_t setStreamVolume(int stream, float value); 711 virtual status_t setStreamMute(int stream, bool muted); 712 713 virtual float streamVolume(int stream) const; 714 virtual bool streamMute(int stream) const; 715 716 sp<Track> createTrack_l( 717 const sp<AudioFlinger::Client>& client, 718 int streamType, 719 uint32_t sampleRate, 720 uint32_t format, 721 uint32_t channelMask, 722 int frameCount, 723 const sp<IMemory>& sharedBuffer, 724 int sessionId, 725 status_t *status); 726 727 AudioStreamOut* getOutput(); 728 AudioStreamOut* clearOutput(); 729 virtual audio_stream_t* stream(); 730 731 void suspend() { mSuspended++; } 732 void restore() { if (mSuspended) mSuspended--; } 733 bool isSuspended() { return (mSuspended != 0); } 734 virtual String8 getParameters(const String8& keys); 735 virtual void audioConfigChanged_l(int event, int param = 0); 736 virtual status_t getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames); 737 int16_t *mixBuffer() { return mMixBuffer; }; 738 739 virtual void detachAuxEffect_l(int effectId); 740 status_t attachAuxEffect(const sp<AudioFlinger::PlaybackThread::Track> track, 741 int EffectId); 742 status_t attachAuxEffect_l(const sp<AudioFlinger::PlaybackThread::Track> track, 743 int EffectId); 744 745 virtual status_t addEffectChain_l(const sp<EffectChain>& chain); 746 virtual size_t removeEffectChain_l(const sp<EffectChain>& chain); 747 virtual uint32_t hasAudioSession(int sessionId); 748 virtual uint32_t getStrategyForSession_l(int sessionId); 749 750 struct stream_type_t { 751 stream_type_t() 752 : volume(1.0f), 753 mute(false) 754 { 755 } 756 float volume; 757 bool mute; 758 }; 759 760 protected: 761 int16_t* mMixBuffer; 762 int mSuspended; 763 int mBytesWritten; 764 bool mMasterMute; 765 SortedVector< wp<Track> > mActiveTracks; 766 767 virtual int getTrackName_l() = 0; 768 virtual void deleteTrackName_l(int name) = 0; 769 virtual uint32_t activeSleepTimeUs() = 0; 770 virtual uint32_t idleSleepTimeUs() = 0; 771 virtual uint32_t suspendSleepTimeUs() = 0; 772 773 private: 774 775 friend class AudioFlinger; 776 friend class OutputTrack; 777 friend class Track; 778 friend class TrackBase; 779 friend class MixerThread; 780 friend class DirectOutputThread; 781 friend class DuplicatingThread; 782 783 PlaybackThread(const Client&); 784 PlaybackThread& operator = (const PlaybackThread&); 785 786 status_t addTrack_l(const sp<Track>& track); 787 void destroyTrack_l(const sp<Track>& track); 788 void removeTrack_l(const sp<Track>& track); 789 790 void readOutputParameters(); 791 792 virtual status_t dumpInternals(int fd, const Vector<String16>& args); 793 status_t dumpTracks(int fd, const Vector<String16>& args); 794 795 SortedVector< sp<Track> > mTracks; 796 // mStreamTypes[] uses 1 additionnal stream type internally for the OutputTrack used by DuplicatingThread 797 stream_type_t mStreamTypes[AUDIO_STREAM_CNT + 1]; 798 AudioStreamOut* mOutput; 799 float mMasterVolume; 800 nsecs_t mLastWriteTime; 801 int mNumWrites; 802 int mNumDelayedWrites; 803 bool mInWrite; 804 }; 805 806 class MixerThread : public PlaybackThread { 807 public: 808 MixerThread (const sp<AudioFlinger>& audioFlinger, 809 AudioStreamOut* output, 810 int id, 811 uint32_t device); 812 virtual ~MixerThread(); 813 814 // Thread virtuals 815 virtual bool threadLoop(); 816 817 void invalidateTracks(int streamType); 818 virtual bool checkForNewParameters_l(); 819 virtual status_t dumpInternals(int fd, const Vector<String16>& args); 820 821 protected: 822 uint32_t prepareTracks_l(const SortedVector< wp<Track> >& activeTracks, 823 Vector< sp<Track> > *tracksToRemove); 824 virtual int getTrackName_l(); 825 virtual void deleteTrackName_l(int name); 826 virtual uint32_t activeSleepTimeUs(); 827 virtual uint32_t idleSleepTimeUs(); 828 virtual uint32_t suspendSleepTimeUs(); 829 830 AudioMixer* mAudioMixer; 831 }; 832 833 class DirectOutputThread : public PlaybackThread { 834 public: 835 836 DirectOutputThread (const sp<AudioFlinger>& audioFlinger, AudioStreamOut* output, int id, uint32_t device); 837 ~DirectOutputThread(); 838 839 // Thread virtuals 840 virtual bool threadLoop(); 841 842 virtual bool checkForNewParameters_l(); 843 844 protected: 845 virtual int getTrackName_l(); 846 virtual void deleteTrackName_l(int name); 847 virtual uint32_t activeSleepTimeUs(); 848 virtual uint32_t idleSleepTimeUs(); 849 virtual uint32_t suspendSleepTimeUs(); 850 851 private: 852 void applyVolume(uint16_t leftVol, uint16_t rightVol, bool ramp); 853 854 float mLeftVolFloat; 855 float mRightVolFloat; 856 uint16_t mLeftVolShort; 857 uint16_t mRightVolShort; 858 }; 859 860 class DuplicatingThread : public MixerThread { 861 public: 862 DuplicatingThread (const sp<AudioFlinger>& audioFlinger, MixerThread* mainThread, int id); 863 ~DuplicatingThread(); 864 865 // Thread virtuals 866 virtual bool threadLoop(); 867 void addOutputTrack(MixerThread* thread); 868 void removeOutputTrack(MixerThread* thread); 869 uint32_t waitTimeMs() { return mWaitTimeMs; } 870 protected: 871 virtual uint32_t activeSleepTimeUs(); 872 873 private: 874 bool outputsReady(SortedVector< sp<OutputTrack> > &outputTracks); 875 void updateWaitTime(); 876 877 SortedVector < sp<OutputTrack> > mOutputTracks; 878 uint32_t mWaitTimeMs; 879 }; 880 881 PlaybackThread *checkPlaybackThread_l(int output) const; 882 MixerThread *checkMixerThread_l(int output) const; 883 RecordThread *checkRecordThread_l(int input) const; 884 float streamVolumeInternal(int stream) const { return mStreamTypes[stream].volume; } 885 void audioConfigChanged_l(int event, int ioHandle, void *param2); 886 887 uint32_t nextUniqueId(); 888 status_t moveEffectChain_l(int sessionId, 889 AudioFlinger::PlaybackThread *srcThread, 890 AudioFlinger::PlaybackThread *dstThread, 891 bool reRegister); 892 PlaybackThread *primaryPlaybackThread_l(); 893 uint32_t primaryOutputDevice_l(); 894 895 friend class AudioBuffer; 896 897 class TrackHandle : public android::BnAudioTrack { 898 public: 899 TrackHandle(const sp<PlaybackThread::Track>& track); 900 virtual ~TrackHandle(); 901 virtual status_t start(); 902 virtual void stop(); 903 virtual void flush(); 904 virtual void mute(bool); 905 virtual void pause(); 906 virtual void setVolume(float left, float right); 907 virtual sp<IMemory> getCblk() const; 908 virtual status_t attachAuxEffect(int effectId); 909 virtual status_t onTransact( 910 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags); 911 private: 912 sp<PlaybackThread::Track> mTrack; 913 }; 914 915 friend class Client; 916 friend class PlaybackThread::Track; 917 918 919 void removeClient_l(pid_t pid); 920 void removeNotificationClient(pid_t pid); 921 922 923 // record thread 924 class RecordThread : public ThreadBase, public AudioBufferProvider 925 { 926 public: 927 928 // record track 929 class RecordTrack : public TrackBase { 930 public: 931 RecordTrack(const wp<ThreadBase>& thread, 932 const sp<Client>& client, 933 uint32_t sampleRate, 934 uint32_t format, 935 uint32_t channelMask, 936 int frameCount, 937 uint32_t flags, 938 int sessionId); 939 ~RecordTrack(); 940 941 virtual status_t start(); 942 virtual void stop(); 943 944 bool overflow() { bool tmp = mOverflow; mOverflow = false; return tmp; } 945 bool setOverflow() { bool tmp = mOverflow; mOverflow = true; return tmp; } 946 947 void dump(char* buffer, size_t size); 948 949 private: 950 friend class AudioFlinger; 951 friend class RecordThread; 952 953 RecordTrack(const RecordTrack&); 954 RecordTrack& operator = (const RecordTrack&); 955 956 virtual status_t getNextBuffer(AudioBufferProvider::Buffer* buffer); 957 958 bool mOverflow; 959 }; 960 961 962 RecordThread(const sp<AudioFlinger>& audioFlinger, 963 AudioStreamIn *input, 964 uint32_t sampleRate, 965 uint32_t channels, 966 int id, 967 uint32_t device); 968 ~RecordThread(); 969 970 virtual bool threadLoop(); 971 virtual status_t readyToRun(); 972 virtual void onFirstRef(); 973 974 virtual status_t initCheck() const { return (mInput == 0) ? NO_INIT : NO_ERROR; } 975 sp<AudioFlinger::RecordThread::RecordTrack> createRecordTrack_l( 976 const sp<AudioFlinger::Client>& client, 977 uint32_t sampleRate, 978 int format, 979 int channelMask, 980 int frameCount, 981 uint32_t flags, 982 int sessionId, 983 status_t *status); 984 985 status_t start(RecordTrack* recordTrack); 986 void stop(RecordTrack* recordTrack); 987 status_t dump(int fd, const Vector<String16>& args); 988 AudioStreamIn* getInput(); 989 AudioStreamIn* clearInput(); 990 virtual audio_stream_t* stream(); 991 992 virtual status_t getNextBuffer(AudioBufferProvider::Buffer* buffer); 993 virtual void releaseBuffer(AudioBufferProvider::Buffer* buffer); 994 virtual bool checkForNewParameters_l(); 995 virtual String8 getParameters(const String8& keys); 996 virtual void audioConfigChanged_l(int event, int param = 0); 997 void readInputParameters(); 998 virtual unsigned int getInputFramesLost(); 999 1000 virtual status_t addEffectChain_l(const sp<EffectChain>& chain); 1001 virtual size_t removeEffectChain_l(const sp<EffectChain>& chain); 1002 virtual uint32_t hasAudioSession(int sessionId); 1003 RecordTrack* track(); 1004 1005 private: 1006 RecordThread(); 1007 AudioStreamIn *mInput; 1008 RecordTrack* mTrack; 1009 sp<RecordTrack> mActiveTrack; 1010 Condition mStartStopCond; 1011 AudioResampler *mResampler; 1012 int32_t *mRsmpOutBuffer; 1013 int16_t *mRsmpInBuffer; 1014 size_t mRsmpInIndex; 1015 size_t mInputBytes; 1016 int mReqChannelCount; 1017 uint32_t mReqSampleRate; 1018 ssize_t mBytesRead; 1019 }; 1020 1021 class RecordHandle : public android::BnAudioRecord { 1022 public: 1023 RecordHandle(const sp<RecordThread::RecordTrack>& recordTrack); 1024 virtual ~RecordHandle(); 1025 virtual status_t start(); 1026 virtual void stop(); 1027 virtual sp<IMemory> getCblk() const; 1028 virtual status_t onTransact( 1029 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags); 1030 private: 1031 sp<RecordThread::RecordTrack> mRecordTrack; 1032 }; 1033 1034 //--- Audio Effect Management 1035 1036 // EffectModule and EffectChain classes both have their own mutex to protect 1037 // state changes or resource modifications. Always respect the following order 1038 // if multiple mutexes must be acquired to avoid cross deadlock: 1039 // AudioFlinger -> ThreadBase -> EffectChain -> EffectModule 1040 1041 // The EffectModule class is a wrapper object controlling the effect engine implementation 1042 // in the effect library. It prevents concurrent calls to process() and command() functions 1043 // from different client threads. It keeps a list of EffectHandle objects corresponding 1044 // to all client applications using this effect and notifies applications of effect state, 1045 // control or parameter changes. It manages the activation state machine to send appropriate 1046 // reset, enable, disable commands to effect engine and provide volume 1047 // ramping when effects are activated/deactivated. 1048 // When controlling an auxiliary effect, the EffectModule also provides an input buffer used by 1049 // the attached track(s) to accumulate their auxiliary channel. 1050 class EffectModule: public RefBase { 1051 public: 1052 EffectModule(const wp<ThreadBase>& wThread, 1053 const wp<AudioFlinger::EffectChain>& chain, 1054 effect_descriptor_t *desc, 1055 int id, 1056 int sessionId); 1057 ~EffectModule(); 1058 1059 enum effect_state { 1060 IDLE, 1061 RESTART, 1062 STARTING, 1063 ACTIVE, 1064 STOPPING, 1065 STOPPED, 1066 DESTROYED 1067 }; 1068 1069 int id() { return mId; } 1070 void process(); 1071 void updateState(); 1072 status_t command(uint32_t cmdCode, 1073 uint32_t cmdSize, 1074 void *pCmdData, 1075 uint32_t *replySize, 1076 void *pReplyData); 1077 1078 void reset_l(); 1079 status_t configure(); 1080 status_t init(); 1081 uint32_t state() { 1082 return mState; 1083 } 1084 uint32_t status() { 1085 return mStatus; 1086 } 1087 int sessionId() { 1088 return mSessionId; 1089 } 1090 status_t setEnabled(bool enabled); 1091 bool isEnabled(); 1092 bool isProcessEnabled(); 1093 1094 void setInBuffer(int16_t *buffer) { mConfig.inputCfg.buffer.s16 = buffer; } 1095 int16_t *inBuffer() { return mConfig.inputCfg.buffer.s16; } 1096 void setOutBuffer(int16_t *buffer) { mConfig.outputCfg.buffer.s16 = buffer; } 1097 int16_t *outBuffer() { return mConfig.outputCfg.buffer.s16; } 1098 void setChain(const wp<EffectChain>& chain) { mChain = chain; } 1099 void setThread(const wp<ThreadBase>& thread) { mThread = thread; } 1100 wp<ThreadBase>& thread() { return mThread; } 1101 1102 status_t addHandle(sp<EffectHandle>& handle); 1103 void disconnect(const wp<EffectHandle>& handle); 1104 size_t removeHandle (const wp<EffectHandle>& handle); 1105 1106 effect_descriptor_t& desc() { return mDescriptor; } 1107 wp<EffectChain>& chain() { return mChain; } 1108 1109 status_t setDevice(uint32_t device); 1110 status_t setVolume(uint32_t *left, uint32_t *right, bool controller); 1111 status_t setMode(uint32_t mode); 1112 status_t stop(); 1113 void setSuspended(bool suspended); 1114 bool suspended(); 1115 1116 sp<EffectHandle> controlHandle(); 1117 1118 status_t dump(int fd, const Vector<String16>& args); 1119 1120 protected: 1121 1122 // Maximum time allocated to effect engines to complete the turn off sequence 1123 static const uint32_t MAX_DISABLE_TIME_MS = 10000; 1124 1125 EffectModule(const EffectModule&); 1126 EffectModule& operator = (const EffectModule&); 1127 1128 status_t start_l(); 1129 status_t stop_l(); 1130 1131 Mutex mLock; // mutex for process, commands and handles list protection 1132 wp<ThreadBase> mThread; // parent thread 1133 wp<EffectChain> mChain; // parent effect chain 1134 int mId; // this instance unique ID 1135 int mSessionId; // audio session ID 1136 effect_descriptor_t mDescriptor;// effect descriptor received from effect engine 1137 effect_config_t mConfig; // input and output audio configuration 1138 effect_handle_t mEffectInterface; // Effect module C API 1139 status_t mStatus; // initialization status 1140 uint32_t mState; // current activation state (effect_state) 1141 Vector< wp<EffectHandle> > mHandles; // list of client handles 1142 uint32_t mMaxDisableWaitCnt; // maximum grace period before forcing an effect off after 1143 // sending disable command. 1144 uint32_t mDisableWaitCnt; // current process() calls count during disable period. 1145 bool mSuspended; // effect is suspended: temporarily disabled by framework 1146 }; 1147 1148 // The EffectHandle class implements the IEffect interface. It provides resources 1149 // to receive parameter updates, keeps track of effect control 1150 // ownership and state and has a pointer to the EffectModule object it is controlling. 1151 // There is one EffectHandle object for each application controlling (or using) 1152 // an effect module. 1153 // The EffectHandle is obtained by calling AudioFlinger::createEffect(). 1154 class EffectHandle: public android::BnEffect { 1155 public: 1156 1157 EffectHandle(const sp<EffectModule>& effect, 1158 const sp<AudioFlinger::Client>& client, 1159 const sp<IEffectClient>& effectClient, 1160 int32_t priority); 1161 virtual ~EffectHandle(); 1162 1163 // IEffect 1164 virtual status_t enable(); 1165 virtual status_t disable(); 1166 virtual status_t command(uint32_t cmdCode, 1167 uint32_t cmdSize, 1168 void *pCmdData, 1169 uint32_t *replySize, 1170 void *pReplyData); 1171 virtual void disconnect(); 1172 virtual sp<IMemory> getCblk() const; 1173 virtual status_t onTransact(uint32_t code, const Parcel& data, 1174 Parcel* reply, uint32_t flags); 1175 1176 1177 // Give or take control of effect module 1178 // - hasControl: true if control is given, false if removed 1179 // - signal: true client app should be signaled of change, false otherwise 1180 // - enabled: state of the effect when control is passed 1181 void setControl(bool hasControl, bool signal, bool enabled); 1182 void commandExecuted(uint32_t cmdCode, 1183 uint32_t cmdSize, 1184 void *pCmdData, 1185 uint32_t replySize, 1186 void *pReplyData); 1187 void setEnabled(bool enabled); 1188 bool enabled() { return mEnabled; } 1189 1190 // Getters 1191 int id() { return mEffect->id(); } 1192 int priority() { return mPriority; } 1193 bool hasControl() { return mHasControl; } 1194 sp<EffectModule> effect() { return mEffect; } 1195 1196 void dump(char* buffer, size_t size); 1197 1198 protected: 1199 1200 EffectHandle(const EffectHandle&); 1201 EffectHandle& operator =(const EffectHandle&); 1202 1203 sp<EffectModule> mEffect; // pointer to controlled EffectModule 1204 sp<IEffectClient> mEffectClient; // callback interface for client notifications 1205 sp<Client> mClient; // client for shared memory allocation 1206 sp<IMemory> mCblkMemory; // shared memory for control block 1207 effect_param_cblk_t* mCblk; // control block for deferred parameter setting via shared memory 1208 uint8_t* mBuffer; // pointer to parameter area in shared memory 1209 int mPriority; // client application priority to control the effect 1210 bool mHasControl; // true if this handle is controlling the effect 1211 bool mEnabled; // cached enable state: needed when the effect is 1212 // restored after being suspended 1213 }; 1214 1215 // the EffectChain class represents a group of effects associated to one audio session. 1216 // There can be any number of EffectChain objects per output mixer thread (PlaybackThread). 1217 // The EffecChain with session ID 0 contains global effects applied to the output mix. 1218 // Effects in this chain can be insert or auxiliary. Effects in other chains (attached to tracks) 1219 // are insert only. The EffectChain maintains an ordered list of effect module, the order corresponding 1220 // in the effect process order. When attached to a track (session ID != 0), it also provide it's own 1221 // input buffer used by the track as accumulation buffer. 1222 class EffectChain: public RefBase { 1223 public: 1224 EffectChain(const wp<ThreadBase>& wThread, int sessionId); 1225 ~EffectChain(); 1226 1227 // special key used for an entry in mSuspendedEffects keyed vector 1228 // corresponding to a suspend all request. 1229 static const int kKeyForSuspendAll = 0; 1230 1231 void process_l(); 1232 1233 void lock() { 1234 mLock.lock(); 1235 } 1236 void unlock() { 1237 mLock.unlock(); 1238 } 1239 1240 status_t addEffect_l(const sp<EffectModule>& handle); 1241 size_t removeEffect_l(const sp<EffectModule>& handle); 1242 1243 int sessionId() { return mSessionId; } 1244 void setSessionId(int sessionId) { mSessionId = sessionId; } 1245 1246 sp<EffectModule> getEffectFromDesc_l(effect_descriptor_t *descriptor); 1247 sp<EffectModule> getEffectFromId_l(int id); 1248 sp<EffectModule> getEffectFromType_l(const effect_uuid_t *type); 1249 bool setVolume_l(uint32_t *left, uint32_t *right); 1250 void setDevice_l(uint32_t device); 1251 void setMode_l(uint32_t mode); 1252 1253 void setInBuffer(int16_t *buffer, bool ownsBuffer = false) { 1254 mInBuffer = buffer; 1255 mOwnInBuffer = ownsBuffer; 1256 } 1257 int16_t *inBuffer() { 1258 return mInBuffer; 1259 } 1260 void setOutBuffer(int16_t *buffer) { 1261 mOutBuffer = buffer; 1262 } 1263 int16_t *outBuffer() { 1264 return mOutBuffer; 1265 } 1266 1267 void incTrackCnt() { android_atomic_inc(&mTrackCnt); } 1268 void decTrackCnt() { android_atomic_dec(&mTrackCnt); } 1269 int32_t trackCnt() { return mTrackCnt;} 1270 1271 void incActiveTrackCnt() { android_atomic_inc(&mActiveTrackCnt); } 1272 void decActiveTrackCnt() { android_atomic_dec(&mActiveTrackCnt); } 1273 int32_t activeTrackCnt() { return mActiveTrackCnt;} 1274 1275 uint32_t strategy() { return mStrategy; } 1276 void setStrategy(uint32_t strategy) 1277 { mStrategy = strategy; } 1278 1279 // suspend effect of the given type 1280 void setEffectSuspended_l(const effect_uuid_t *type, 1281 bool suspend); 1282 // suspend all eligible effects 1283 void setEffectSuspendedAll_l(bool suspend); 1284 // check if effects should be suspend or restored when a given effect is enable or disabled 1285 virtual void checkSuspendOnEffectEnabled(const sp<EffectModule>& effect, 1286 bool enabled); 1287 1288 status_t dump(int fd, const Vector<String16>& args); 1289 1290 protected: 1291 1292 EffectChain(const EffectChain&); 1293 EffectChain& operator =(const EffectChain&); 1294 1295 class SuspendedEffectDesc : public RefBase { 1296 public: 1297 SuspendedEffectDesc() : mRefCount(0) {} 1298 1299 int mRefCount; 1300 effect_uuid_t mType; 1301 wp<EffectModule> mEffect; 1302 }; 1303 1304 // get a list of effect modules to suspend when an effect of the type 1305 // passed is enabled. 1306 Vector< sp<EffectModule> > getSuspendEligibleEffects(); 1307 // get an effect module if it is currently enable 1308 sp<EffectModule> getEffectIfEnabled(const effect_uuid_t *type); 1309 1310 wp<ThreadBase> mThread; // parent mixer thread 1311 Mutex mLock; // mutex protecting effect list 1312 Vector<sp<EffectModule> > mEffects; // list of effect modules 1313 int mSessionId; // audio session ID 1314 int16_t *mInBuffer; // chain input buffer 1315 int16_t *mOutBuffer; // chain output buffer 1316 volatile int32_t mActiveTrackCnt; // number of active tracks connected 1317 volatile int32_t mTrackCnt; // number of tracks connected 1318 bool mOwnInBuffer; // true if the chain owns its input buffer 1319 int mVolumeCtrlIdx; // index of insert effect having control over volume 1320 uint32_t mLeftVolume; // previous volume on left channel 1321 uint32_t mRightVolume; // previous volume on right channel 1322 uint32_t mNewLeftVolume; // new volume on left channel 1323 uint32_t mNewRightVolume; // new volume on right channel 1324 uint32_t mStrategy; // strategy for this effect chain 1325 // mSuspendedEffects lists all effect currently suspended in the chain 1326 // use effect type UUID timelow field as key. There is no real risk of identical 1327 // timeLow fields among effect type UUIDs. 1328 KeyedVector< int, sp<SuspendedEffectDesc> > mSuspendedEffects; 1329 }; 1330 1331 struct AudioStreamOut { 1332 audio_hw_device_t *hwDev; 1333 audio_stream_out_t *stream; 1334 1335 AudioStreamOut(audio_hw_device_t *dev, audio_stream_out_t *out) : 1336 hwDev(dev), stream(out) {} 1337 }; 1338 1339 struct AudioStreamIn { 1340 audio_hw_device_t *hwDev; 1341 audio_stream_in_t *stream; 1342 1343 AudioStreamIn(audio_hw_device_t *dev, audio_stream_in_t *in) : 1344 hwDev(dev), stream(in) {} 1345 }; 1346 1347 friend class RecordThread; 1348 friend class PlaybackThread; 1349 1350 mutable Mutex mLock; 1351 1352 DefaultKeyedVector< pid_t, wp<Client> > mClients; 1353 1354 mutable Mutex mHardwareLock; 1355 audio_hw_device_t* mPrimaryHardwareDev; 1356 Vector<audio_hw_device_t*> mAudioHwDevs; 1357 mutable int mHardwareStatus; 1358 1359 1360 DefaultKeyedVector< int, sp<PlaybackThread> > mPlaybackThreads; 1361 PlaybackThread::stream_type_t mStreamTypes[AUDIO_STREAM_CNT]; 1362 float mMasterVolume; 1363 bool mMasterMute; 1364 1365 DefaultKeyedVector< int, sp<RecordThread> > mRecordThreads; 1366 1367 DefaultKeyedVector< pid_t, sp<NotificationClient> > mNotificationClients; 1368 volatile int32_t mNextUniqueId; 1369 uint32_t mMode; 1370 bool mBtNrec; 1371 1372}; 1373 1374 1375// ---------------------------------------------------------------------------- 1376 1377}; // namespace android 1378 1379#endif // ANDROID_AUDIO_FLINGER_H 1380