AudioFlinger.h revision ec35a1416472865dbebc22b10199ad718ed2cc95
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 void acquireAudioSessionId(int audioSession); 153 154 virtual void releaseAudioSessionId(int audioSession); 155 156 virtual status_t queryNumberEffects(uint32_t *numEffects); 157 158 virtual status_t queryEffect(uint32_t index, effect_descriptor_t *descriptor); 159 160 virtual status_t getEffectDescriptor(effect_uuid_t *pUuid, effect_descriptor_t *descriptor); 161 162 virtual sp<IEffect> createEffect(pid_t pid, 163 effect_descriptor_t *pDesc, 164 const sp<IEffectClient>& effectClient, 165 int32_t priority, 166 int io, 167 int sessionId, 168 status_t *status, 169 int *id, 170 int *enabled); 171 172 virtual status_t moveEffects(int sessionId, int srcOutput, int dstOutput); 173 174 enum hardware_call_state { 175 AUDIO_HW_IDLE = 0, 176 AUDIO_HW_INIT, 177 AUDIO_HW_OUTPUT_OPEN, 178 AUDIO_HW_OUTPUT_CLOSE, 179 AUDIO_HW_INPUT_OPEN, 180 AUDIO_HW_INPUT_CLOSE, 181 AUDIO_HW_STANDBY, 182 AUDIO_HW_SET_MASTER_VOLUME, 183 AUDIO_HW_GET_ROUTING, 184 AUDIO_HW_SET_ROUTING, 185 AUDIO_HW_GET_MODE, 186 AUDIO_HW_SET_MODE, 187 AUDIO_HW_GET_MIC_MUTE, 188 AUDIO_HW_SET_MIC_MUTE, 189 AUDIO_SET_VOICE_VOLUME, 190 AUDIO_SET_PARAMETER, 191 }; 192 193 // record interface 194 virtual sp<IAudioRecord> openRecord( 195 pid_t pid, 196 int input, 197 uint32_t sampleRate, 198 uint32_t format, 199 uint32_t channelMask, 200 int frameCount, 201 uint32_t flags, 202 int *sessionId, 203 status_t *status); 204 205 virtual status_t onTransact( 206 uint32_t code, 207 const Parcel& data, 208 Parcel* reply, 209 uint32_t flags); 210 211 uint32_t getMode() { return mMode; } 212 213 bool btNrecIsOff() { return mBtNrecIsOff; } 214 215private: 216 AudioFlinger(); 217 virtual ~AudioFlinger(); 218 219 status_t initCheck() const; 220 virtual void onFirstRef(); 221 audio_hw_device_t* findSuitableHwDev_l(uint32_t devices); 222 void purgeStaleEffects_l(); 223 224 // Internal dump utilites. 225 status_t dumpPermissionDenial(int fd, const Vector<String16>& args); 226 status_t dumpClients(int fd, const Vector<String16>& args); 227 status_t dumpInternals(int fd, const Vector<String16>& args); 228 229 // --- Client --- 230 class Client : public RefBase { 231 public: 232 Client(const sp<AudioFlinger>& audioFlinger, pid_t pid); 233 virtual ~Client(); 234 const sp<MemoryDealer>& heap() const; 235 pid_t pid() const { return mPid; } 236 sp<AudioFlinger> audioFlinger() { return mAudioFlinger; } 237 238 private: 239 Client(const Client&); 240 Client& operator = (const Client&); 241 sp<AudioFlinger> mAudioFlinger; 242 sp<MemoryDealer> mMemoryDealer; 243 pid_t mPid; 244 }; 245 246 // --- Notification Client --- 247 class NotificationClient : public IBinder::DeathRecipient { 248 public: 249 NotificationClient(const sp<AudioFlinger>& audioFlinger, 250 const sp<IAudioFlingerClient>& client, 251 pid_t pid); 252 virtual ~NotificationClient(); 253 254 sp<IAudioFlingerClient> client() { return mClient; } 255 256 // IBinder::DeathRecipient 257 virtual void binderDied(const wp<IBinder>& who); 258 259 private: 260 NotificationClient(const NotificationClient&); 261 NotificationClient& operator = (const NotificationClient&); 262 263 sp<AudioFlinger> mAudioFlinger; 264 pid_t mPid; 265 sp<IAudioFlingerClient> mClient; 266 }; 267 268 class TrackHandle; 269 class RecordHandle; 270 class RecordThread; 271 class PlaybackThread; 272 class MixerThread; 273 class DirectOutputThread; 274 class DuplicatingThread; 275 class Track; 276 class RecordTrack; 277 class EffectModule; 278 class EffectHandle; 279 class EffectChain; 280 struct AudioStreamOut; 281 struct AudioStreamIn; 282 283 class ThreadBase : public Thread { 284 public: 285 ThreadBase (const sp<AudioFlinger>& audioFlinger, int id, uint32_t device); 286 virtual ~ThreadBase(); 287 288 289 enum type { 290 MIXER, // Thread class is MixerThread 291 DIRECT, // Thread class is DirectOutputThread 292 DUPLICATING, // Thread class is DuplicatingThread 293 RECORD // Thread class is RecordThread 294 }; 295 296 status_t dumpBase(int fd, const Vector<String16>& args); 297 status_t dumpEffectChains(int fd, const Vector<String16>& args); 298 299 void clearPowerManager(); 300 301 // base for record and playback 302 class TrackBase : public AudioBufferProvider, public RefBase { 303 304 public: 305 enum track_state { 306 IDLE, 307 TERMINATED, 308 STOPPED, 309 RESUMING, 310 ACTIVE, 311 PAUSING, 312 PAUSED 313 }; 314 315 enum track_flags { 316 STEPSERVER_FAILED = 0x01, // StepServer could not acquire cblk->lock mutex 317 SYSTEM_FLAGS_MASK = 0x0000ffffUL, 318 // The upper 16 bits are used for track-specific flags. 319 }; 320 321 TrackBase(const wp<ThreadBase>& thread, 322 const sp<Client>& client, 323 uint32_t sampleRate, 324 uint32_t format, 325 uint32_t channelMask, 326 int frameCount, 327 uint32_t flags, 328 const sp<IMemory>& sharedBuffer, 329 int sessionId); 330 ~TrackBase(); 331 332 virtual status_t start() = 0; 333 virtual void stop() = 0; 334 sp<IMemory> getCblk() const; 335 audio_track_cblk_t* cblk() const { return mCblk; } 336 int sessionId() { return mSessionId; } 337 338 protected: 339 friend class ThreadBase; 340 friend class RecordHandle; 341 friend class PlaybackThread; 342 friend class RecordThread; 343 friend class MixerThread; 344 friend class DirectOutputThread; 345 346 TrackBase(const TrackBase&); 347 TrackBase& operator = (const TrackBase&); 348 349 virtual status_t getNextBuffer(AudioBufferProvider::Buffer* buffer) = 0; 350 virtual void releaseBuffer(AudioBufferProvider::Buffer* buffer); 351 352 uint32_t format() const { 353 return mFormat; 354 } 355 356 int channelCount() const ; 357 358 uint32_t channelMask() const; 359 360 int sampleRate() const; 361 362 void* getBuffer(uint32_t offset, uint32_t frames) const; 363 364 bool isStopped() const { 365 return mState == STOPPED; 366 } 367 368 bool isTerminated() const { 369 return mState == TERMINATED; 370 } 371 372 bool step(); 373 void reset(); 374 375 wp<ThreadBase> mThread; 376 sp<Client> mClient; 377 sp<IMemory> mCblkMemory; 378 audio_track_cblk_t* mCblk; 379 void* mBuffer; 380 void* mBufferEnd; 381 uint32_t mFrameCount; 382 // we don't really need a lock for these 383 int mState; 384 int mClientTid; 385 uint32_t mFormat; 386 uint32_t mFlags; 387 int mSessionId; 388 uint8_t mChannelCount; 389 uint32_t mChannelMask; 390 }; 391 392 class ConfigEvent { 393 public: 394 ConfigEvent() : mEvent(0), mParam(0) {} 395 396 int mEvent; 397 int mParam; 398 }; 399 400 class PMDeathRecipient : public IBinder::DeathRecipient { 401 public: 402 PMDeathRecipient(const wp<ThreadBase>& thread) : mThread(thread) {} 403 virtual ~PMDeathRecipient() {} 404 405 // IBinder::DeathRecipient 406 virtual void binderDied(const wp<IBinder>& who); 407 408 private: 409 PMDeathRecipient(const PMDeathRecipient&); 410 PMDeathRecipient& operator = (const PMDeathRecipient&); 411 412 wp<ThreadBase> mThread; 413 }; 414 415 virtual status_t initCheck() const = 0; 416 int type() const { return mType; } 417 uint32_t sampleRate() const; 418 int channelCount() const; 419 uint32_t format() const; 420 size_t frameCount() const; 421 void wakeUp() { mWaitWorkCV.broadcast(); } 422 void exit(); 423 virtual bool checkForNewParameters_l() = 0; 424 virtual status_t setParameters(const String8& keyValuePairs); 425 virtual String8 getParameters(const String8& keys) = 0; 426 virtual void audioConfigChanged_l(int event, int param = 0) = 0; 427 void sendConfigEvent(int event, int param = 0); 428 void sendConfigEvent_l(int event, int param = 0); 429 void processConfigEvents(); 430 int id() const { return mId;} 431 bool standby() { return mStandby; } 432 uint32_t device() { return mDevice; } 433 virtual audio_stream_t* stream() = 0; 434 435 sp<EffectHandle> createEffect_l( 436 const sp<AudioFlinger::Client>& client, 437 const sp<IEffectClient>& effectClient, 438 int32_t priority, 439 int sessionId, 440 effect_descriptor_t *desc, 441 int *enabled, 442 status_t *status); 443 void disconnectEffect(const sp< EffectModule>& effect, 444 const wp<EffectHandle>& handle, 445 bool unpiniflast); 446 447 // return values for hasAudioSession (bit field) 448 enum effect_state { 449 EFFECT_SESSION = 0x1, // the audio session corresponds to at least one 450 // effect 451 TRACK_SESSION = 0x2 // the audio session corresponds to at least one 452 // track 453 }; 454 455 // get effect chain corresponding to session Id. 456 sp<EffectChain> getEffectChain(int sessionId); 457 // same as getEffectChain() but must be called with ThreadBase mutex locked 458 sp<EffectChain> getEffectChain_l(int sessionId); 459 // add an effect chain to the chain list (mEffectChains) 460 virtual status_t addEffectChain_l(const sp<EffectChain>& chain) = 0; 461 // remove an effect chain from the chain list (mEffectChains) 462 virtual size_t removeEffectChain_l(const sp<EffectChain>& chain) = 0; 463 // lock mall effect chains Mutexes. Must be called before releasing the 464 // ThreadBase mutex before processing the mixer and effects. This guarantees the 465 // integrity of the chains during the process. 466 void lockEffectChains_l(Vector<sp <EffectChain> >& effectChains); 467 // unlock effect chains after process 468 void unlockEffectChains(Vector<sp <EffectChain> >& effectChains); 469 // set audio mode to all effect chains 470 void setMode(uint32_t mode); 471 // get effect module with corresponding ID on specified audio session 472 sp<AudioFlinger::EffectModule> getEffect_l(int sessionId, int effectId); 473 // add and effect module. Also creates the effect chain is none exists for 474 // the effects audio session 475 status_t addEffect_l(const sp< EffectModule>& effect); 476 // remove and effect module. Also removes the effect chain is this was the last 477 // effect 478 void removeEffect_l(const sp< EffectModule>& effect); 479 // detach all tracks connected to an auxiliary effect 480 virtual void detachAuxEffect_l(int effectId) {} 481 // returns either EFFECT_SESSION if effects on this audio session exist in one 482 // chain, or TRACK_SESSION if tracks on this audio session exist, or both 483 virtual uint32_t hasAudioSession(int sessionId) = 0; 484 // the value returned by default implementation is not important as the 485 // strategy is only meaningful for PlaybackThread which implements this method 486 virtual uint32_t getStrategyForSession_l(int sessionId) { return 0; } 487 488 // suspend or restore effect according to the type of effect passed. a NULL 489 // type pointer means suspend all effects in the session 490 void setEffectSuspended(const effect_uuid_t *type, 491 bool suspend, 492 int sessionId = AUDIO_SESSION_OUTPUT_MIX); 493 // check if some effects must be suspended/restored when an effect is enabled 494 // or disabled 495 virtual void checkSuspendOnEffectEnabled(const sp<EffectModule>& effect, 496 bool enabled, 497 int sessionId = AUDIO_SESSION_OUTPUT_MIX); 498 499 mutable Mutex mLock; 500 501 protected: 502 503 // entry describing an effect being suspended in mSuspendedSessions keyed vector 504 class SuspendedSessionDesc : public RefBase { 505 public: 506 SuspendedSessionDesc() : mRefCount(0) {} 507 508 int mRefCount; // number of active suspend requests 509 effect_uuid_t mType; // effect type UUID 510 }; 511 512 void acquireWakeLock(); 513 void acquireWakeLock_l(); 514 void releaseWakeLock(); 515 void releaseWakeLock_l(); 516 void setEffectSuspended_l(const effect_uuid_t *type, 517 bool suspend, 518 int sessionId = AUDIO_SESSION_OUTPUT_MIX); 519 // updated mSuspendedSessions when an effect suspended or restored 520 void updateSuspendedSessions_l(const effect_uuid_t *type, 521 bool suspend, 522 int sessionId); 523 // check if some effects must be suspended when an effect chain is added 524 void checkSuspendOnAddEffectChain_l(const sp<EffectChain>& chain); 525 526 friend class AudioFlinger; 527 friend class Track; 528 friend class TrackBase; 529 friend class PlaybackThread; 530 friend class MixerThread; 531 friend class DirectOutputThread; 532 friend class DuplicatingThread; 533 friend class RecordThread; 534 friend class RecordTrack; 535 536 int mType; 537 Condition mWaitWorkCV; 538 sp<AudioFlinger> mAudioFlinger; 539 uint32_t mSampleRate; 540 size_t mFrameCount; 541 uint32_t mChannelMask; 542 uint16_t mChannelCount; 543 uint16_t mFrameSize; 544 uint32_t mFormat; 545 Condition mParamCond; 546 Vector<String8> mNewParameters; 547 status_t mParamStatus; 548 Vector<ConfigEvent *> mConfigEvents; 549 bool mStandby; 550 int mId; 551 bool mExiting; 552 Vector< sp<EffectChain> > mEffectChains; 553 uint32_t mDevice; // output device for PlaybackThread 554 // input + output devices for RecordThread 555 static const int kNameLength = 32; 556 char mName[kNameLength]; 557 sp<IPowerManager> mPowerManager; 558 sp<IBinder> mWakeLockToken; 559 sp<PMDeathRecipient> mDeathRecipient; 560 // list of suspended effects per session and per type. The first vector is 561 // keyed by session ID, the second by type UUID timeLow field 562 KeyedVector< int, KeyedVector< int, sp<SuspendedSessionDesc> > > mSuspendedSessions; 563 }; 564 565 // --- PlaybackThread --- 566 class PlaybackThread : public ThreadBase { 567 public: 568 569 enum mixer_state { 570 MIXER_IDLE, 571 MIXER_TRACKS_ENABLED, 572 MIXER_TRACKS_READY 573 }; 574 575 // playback track 576 class Track : public TrackBase { 577 public: 578 Track( const wp<ThreadBase>& thread, 579 const sp<Client>& client, 580 int streamType, 581 uint32_t sampleRate, 582 uint32_t format, 583 uint32_t channelMask, 584 int frameCount, 585 const sp<IMemory>& sharedBuffer, 586 int sessionId); 587 ~Track(); 588 589 void dump(char* buffer, size_t size); 590 virtual status_t start(); 591 virtual void stop(); 592 void pause(); 593 594 void flush(); 595 void destroy(); 596 void mute(bool); 597 void setVolume(float left, float right); 598 int name() const { 599 return mName; 600 } 601 602 int type() const { 603 return mStreamType; 604 } 605 status_t attachAuxEffect(int EffectId); 606 void setAuxBuffer(int EffectId, int32_t *buffer); 607 int32_t *auxBuffer() { return mAuxBuffer; } 608 void setMainBuffer(int16_t *buffer) { mMainBuffer = buffer; } 609 int16_t *mainBuffer() { return mMainBuffer; } 610 int auxEffectId() { return mAuxEffectId; } 611 612 613 protected: 614 friend class ThreadBase; 615 friend class TrackHandle; 616 friend class PlaybackThread; 617 friend class MixerThread; 618 friend class DirectOutputThread; 619 620 Track(const Track&); 621 Track& operator = (const Track&); 622 623 virtual status_t getNextBuffer(AudioBufferProvider::Buffer* buffer); 624 bool isMuted() { return mMute; } 625 bool isPausing() const { 626 return mState == PAUSING; 627 } 628 bool isPaused() const { 629 return mState == PAUSED; 630 } 631 bool isReady() const; 632 void setPaused() { mState = PAUSED; } 633 void reset(); 634 635 bool isOutputTrack() const { 636 return (mStreamType == AUDIO_STREAM_CNT); 637 } 638 639 // we don't really need a lock for these 640 float mVolume[2]; 641 volatile bool mMute; 642 // FILLED state is used for suppressing volume ramp at begin of playing 643 enum {FS_FILLING, FS_FILLED, FS_ACTIVE}; 644 mutable uint8_t mFillingUpStatus; 645 int8_t mRetryCount; 646 sp<IMemory> mSharedBuffer; 647 bool mResetDone; 648 int mStreamType; 649 int mName; 650 int16_t *mMainBuffer; 651 int32_t *mAuxBuffer; 652 int mAuxEffectId; 653 bool mHasVolumeController; 654 }; // end of Track 655 656 657 // playback track 658 class OutputTrack : public Track { 659 public: 660 661 class Buffer: public AudioBufferProvider::Buffer { 662 public: 663 int16_t *mBuffer; 664 }; 665 666 OutputTrack( const wp<ThreadBase>& thread, 667 DuplicatingThread *sourceThread, 668 uint32_t sampleRate, 669 uint32_t format, 670 uint32_t channelMask, 671 int frameCount); 672 ~OutputTrack(); 673 674 virtual status_t start(); 675 virtual void stop(); 676 bool write(int16_t* data, uint32_t frames); 677 bool bufferQueueEmpty() { return (mBufferQueue.size() == 0) ? true : false; } 678 bool isActive() { return mActive; } 679 wp<ThreadBase>& thread() { return mThread; } 680 681 private: 682 683 status_t obtainBuffer(AudioBufferProvider::Buffer* buffer, uint32_t waitTimeMs); 684 void clearBufferQueue(); 685 686 // Maximum number of pending buffers allocated by OutputTrack::write() 687 static const uint8_t kMaxOverFlowBuffers = 10; 688 689 Vector < Buffer* > mBufferQueue; 690 AudioBufferProvider::Buffer mOutBuffer; 691 bool mActive; 692 DuplicatingThread* mSourceThread; 693 }; // end of OutputTrack 694 695 PlaybackThread (const sp<AudioFlinger>& audioFlinger, AudioStreamOut* output, int id, uint32_t device); 696 virtual ~PlaybackThread(); 697 698 virtual status_t dump(int fd, const Vector<String16>& args); 699 700 // Thread virtuals 701 virtual status_t readyToRun(); 702 virtual void onFirstRef(); 703 704 virtual status_t initCheck() const { return (mOutput == 0) ? NO_INIT : NO_ERROR; } 705 706 virtual uint32_t latency() const; 707 708 virtual status_t setMasterVolume(float value); 709 virtual status_t setMasterMute(bool muted); 710 711 virtual float masterVolume() const; 712 virtual bool masterMute() const; 713 714 virtual status_t setStreamVolume(int stream, float value); 715 virtual status_t setStreamMute(int stream, bool muted); 716 717 virtual float streamVolume(int stream) const; 718 virtual bool streamMute(int stream) const; 719 720 sp<Track> createTrack_l( 721 const sp<AudioFlinger::Client>& client, 722 int streamType, 723 uint32_t sampleRate, 724 uint32_t format, 725 uint32_t channelMask, 726 int frameCount, 727 const sp<IMemory>& sharedBuffer, 728 int sessionId, 729 status_t *status); 730 731 AudioStreamOut* getOutput(); 732 AudioStreamOut* clearOutput(); 733 virtual audio_stream_t* stream(); 734 735 void suspend() { mSuspended++; } 736 void restore() { if (mSuspended) mSuspended--; } 737 bool isSuspended() { return (mSuspended != 0); } 738 virtual String8 getParameters(const String8& keys); 739 virtual void audioConfigChanged_l(int event, int param = 0); 740 virtual status_t getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames); 741 int16_t *mixBuffer() { return mMixBuffer; }; 742 743 virtual void detachAuxEffect_l(int effectId); 744 status_t attachAuxEffect(const sp<AudioFlinger::PlaybackThread::Track> track, 745 int EffectId); 746 status_t attachAuxEffect_l(const sp<AudioFlinger::PlaybackThread::Track> track, 747 int EffectId); 748 749 virtual status_t addEffectChain_l(const sp<EffectChain>& chain); 750 virtual size_t removeEffectChain_l(const sp<EffectChain>& chain); 751 virtual uint32_t hasAudioSession(int sessionId); 752 virtual uint32_t getStrategyForSession_l(int sessionId); 753 754 void setStreamValid(int streamType, bool valid); 755 756 struct stream_type_t { 757 stream_type_t() 758 : volume(1.0f), 759 mute(false), 760 valid(true) 761 { 762 } 763 float volume; 764 bool mute; 765 bool valid; 766 }; 767 768 protected: 769 int16_t* mMixBuffer; 770 int mSuspended; 771 int mBytesWritten; 772 bool mMasterMute; 773 SortedVector< wp<Track> > mActiveTracks; 774 775 virtual int getTrackName_l() = 0; 776 virtual void deleteTrackName_l(int name) = 0; 777 virtual uint32_t activeSleepTimeUs() = 0; 778 virtual uint32_t idleSleepTimeUs() = 0; 779 virtual uint32_t suspendSleepTimeUs() = 0; 780 781 private: 782 783 friend class AudioFlinger; 784 friend class OutputTrack; 785 friend class Track; 786 friend class TrackBase; 787 friend class MixerThread; 788 friend class DirectOutputThread; 789 friend class DuplicatingThread; 790 791 PlaybackThread(const Client&); 792 PlaybackThread& operator = (const PlaybackThread&); 793 794 status_t addTrack_l(const sp<Track>& track); 795 void destroyTrack_l(const sp<Track>& track); 796 void removeTrack_l(const sp<Track>& track); 797 798 void readOutputParameters(); 799 800 virtual status_t dumpInternals(int fd, const Vector<String16>& args); 801 status_t dumpTracks(int fd, const Vector<String16>& args); 802 803 SortedVector< sp<Track> > mTracks; 804 // mStreamTypes[] uses 1 additionnal stream type internally for the OutputTrack used by DuplicatingThread 805 stream_type_t mStreamTypes[AUDIO_STREAM_CNT + 1]; 806 AudioStreamOut* mOutput; 807 float mMasterVolume; 808 nsecs_t mLastWriteTime; 809 int mNumWrites; 810 int mNumDelayedWrites; 811 bool mInWrite; 812 }; 813 814 class MixerThread : public PlaybackThread { 815 public: 816 MixerThread (const sp<AudioFlinger>& audioFlinger, 817 AudioStreamOut* output, 818 int id, 819 uint32_t device); 820 virtual ~MixerThread(); 821 822 // Thread virtuals 823 virtual bool threadLoop(); 824 825 void invalidateTracks(int streamType); 826 virtual bool checkForNewParameters_l(); 827 virtual status_t dumpInternals(int fd, const Vector<String16>& args); 828 829 protected: 830 uint32_t prepareTracks_l(const SortedVector< wp<Track> >& activeTracks, 831 Vector< sp<Track> > *tracksToRemove); 832 virtual int getTrackName_l(); 833 virtual void deleteTrackName_l(int name); 834 virtual uint32_t activeSleepTimeUs(); 835 virtual uint32_t idleSleepTimeUs(); 836 virtual uint32_t suspendSleepTimeUs(); 837 838 AudioMixer* mAudioMixer; 839 }; 840 841 class DirectOutputThread : public PlaybackThread { 842 public: 843 844 DirectOutputThread (const sp<AudioFlinger>& audioFlinger, AudioStreamOut* output, int id, uint32_t device); 845 ~DirectOutputThread(); 846 847 // Thread virtuals 848 virtual bool threadLoop(); 849 850 virtual bool checkForNewParameters_l(); 851 852 protected: 853 virtual int getTrackName_l(); 854 virtual void deleteTrackName_l(int name); 855 virtual uint32_t activeSleepTimeUs(); 856 virtual uint32_t idleSleepTimeUs(); 857 virtual uint32_t suspendSleepTimeUs(); 858 859 private: 860 void applyVolume(uint16_t leftVol, uint16_t rightVol, bool ramp); 861 862 float mLeftVolFloat; 863 float mRightVolFloat; 864 uint16_t mLeftVolShort; 865 uint16_t mRightVolShort; 866 }; 867 868 class DuplicatingThread : public MixerThread { 869 public: 870 DuplicatingThread (const sp<AudioFlinger>& audioFlinger, MixerThread* mainThread, int id); 871 ~DuplicatingThread(); 872 873 // Thread virtuals 874 virtual bool threadLoop(); 875 void addOutputTrack(MixerThread* thread); 876 void removeOutputTrack(MixerThread* thread); 877 uint32_t waitTimeMs() { return mWaitTimeMs; } 878 protected: 879 virtual uint32_t activeSleepTimeUs(); 880 881 private: 882 bool outputsReady(SortedVector< sp<OutputTrack> > &outputTracks); 883 void updateWaitTime(); 884 885 SortedVector < sp<OutputTrack> > mOutputTracks; 886 uint32_t mWaitTimeMs; 887 }; 888 889 PlaybackThread *checkPlaybackThread_l(int output) const; 890 MixerThread *checkMixerThread_l(int output) const; 891 RecordThread *checkRecordThread_l(int input) const; 892 float streamVolumeInternal(int stream) const { return mStreamTypes[stream].volume; } 893 void audioConfigChanged_l(int event, int ioHandle, void *param2); 894 895 uint32_t nextUniqueId(); 896 status_t moveEffectChain_l(int sessionId, 897 AudioFlinger::PlaybackThread *srcThread, 898 AudioFlinger::PlaybackThread *dstThread, 899 bool reRegister); 900 PlaybackThread *primaryPlaybackThread_l(); 901 uint32_t primaryOutputDevice_l(); 902 903 friend class AudioBuffer; 904 905 class TrackHandle : public android::BnAudioTrack { 906 public: 907 TrackHandle(const sp<PlaybackThread::Track>& track); 908 virtual ~TrackHandle(); 909 virtual status_t start(); 910 virtual void stop(); 911 virtual void flush(); 912 virtual void mute(bool); 913 virtual void pause(); 914 virtual void setVolume(float left, float right); 915 virtual sp<IMemory> getCblk() const; 916 virtual status_t attachAuxEffect(int effectId); 917 virtual status_t onTransact( 918 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags); 919 private: 920 sp<PlaybackThread::Track> mTrack; 921 }; 922 923 friend class Client; 924 friend class PlaybackThread::Track; 925 926 927 void removeClient_l(pid_t pid); 928 void removeNotificationClient(pid_t pid); 929 930 931 // record thread 932 class RecordThread : public ThreadBase, public AudioBufferProvider 933 { 934 public: 935 936 // record track 937 class RecordTrack : public TrackBase { 938 public: 939 RecordTrack(const wp<ThreadBase>& thread, 940 const sp<Client>& client, 941 uint32_t sampleRate, 942 uint32_t format, 943 uint32_t channelMask, 944 int frameCount, 945 uint32_t flags, 946 int sessionId); 947 ~RecordTrack(); 948 949 virtual status_t start(); 950 virtual void stop(); 951 952 bool overflow() { bool tmp = mOverflow; mOverflow = false; return tmp; } 953 bool setOverflow() { bool tmp = mOverflow; mOverflow = true; return tmp; } 954 955 void dump(char* buffer, size_t size); 956 957 private: 958 friend class AudioFlinger; 959 friend class RecordThread; 960 961 RecordTrack(const RecordTrack&); 962 RecordTrack& operator = (const RecordTrack&); 963 964 virtual status_t getNextBuffer(AudioBufferProvider::Buffer* buffer); 965 966 bool mOverflow; 967 }; 968 969 970 RecordThread(const sp<AudioFlinger>& audioFlinger, 971 AudioStreamIn *input, 972 uint32_t sampleRate, 973 uint32_t channels, 974 int id, 975 uint32_t device); 976 ~RecordThread(); 977 978 virtual bool threadLoop(); 979 virtual status_t readyToRun(); 980 virtual void onFirstRef(); 981 982 virtual status_t initCheck() const { return (mInput == 0) ? NO_INIT : NO_ERROR; } 983 sp<AudioFlinger::RecordThread::RecordTrack> createRecordTrack_l( 984 const sp<AudioFlinger::Client>& client, 985 uint32_t sampleRate, 986 int format, 987 int channelMask, 988 int frameCount, 989 uint32_t flags, 990 int sessionId, 991 status_t *status); 992 993 status_t start(RecordTrack* recordTrack); 994 void stop(RecordTrack* recordTrack); 995 status_t dump(int fd, const Vector<String16>& args); 996 AudioStreamIn* getInput(); 997 AudioStreamIn* clearInput(); 998 virtual audio_stream_t* stream(); 999 1000 virtual status_t getNextBuffer(AudioBufferProvider::Buffer* buffer); 1001 virtual void releaseBuffer(AudioBufferProvider::Buffer* buffer); 1002 virtual bool checkForNewParameters_l(); 1003 virtual String8 getParameters(const String8& keys); 1004 virtual void audioConfigChanged_l(int event, int param = 0); 1005 void readInputParameters(); 1006 virtual unsigned int getInputFramesLost(); 1007 1008 virtual status_t addEffectChain_l(const sp<EffectChain>& chain); 1009 virtual size_t removeEffectChain_l(const sp<EffectChain>& chain); 1010 virtual uint32_t hasAudioSession(int sessionId); 1011 RecordTrack* track(); 1012 1013 private: 1014 RecordThread(); 1015 AudioStreamIn *mInput; 1016 RecordTrack* mTrack; 1017 sp<RecordTrack> mActiveTrack; 1018 Condition mStartStopCond; 1019 AudioResampler *mResampler; 1020 int32_t *mRsmpOutBuffer; 1021 int16_t *mRsmpInBuffer; 1022 size_t mRsmpInIndex; 1023 size_t mInputBytes; 1024 int mReqChannelCount; 1025 uint32_t mReqSampleRate; 1026 ssize_t mBytesRead; 1027 }; 1028 1029 class RecordHandle : public android::BnAudioRecord { 1030 public: 1031 RecordHandle(const sp<RecordThread::RecordTrack>& recordTrack); 1032 virtual ~RecordHandle(); 1033 virtual status_t start(); 1034 virtual void stop(); 1035 virtual sp<IMemory> getCblk() const; 1036 virtual status_t onTransact( 1037 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags); 1038 private: 1039 sp<RecordThread::RecordTrack> mRecordTrack; 1040 }; 1041 1042 //--- Audio Effect Management 1043 1044 // EffectModule and EffectChain classes both have their own mutex to protect 1045 // state changes or resource modifications. Always respect the following order 1046 // if multiple mutexes must be acquired to avoid cross deadlock: 1047 // AudioFlinger -> ThreadBase -> EffectChain -> EffectModule 1048 1049 // The EffectModule class is a wrapper object controlling the effect engine implementation 1050 // in the effect library. It prevents concurrent calls to process() and command() functions 1051 // from different client threads. It keeps a list of EffectHandle objects corresponding 1052 // to all client applications using this effect and notifies applications of effect state, 1053 // control or parameter changes. It manages the activation state machine to send appropriate 1054 // reset, enable, disable commands to effect engine and provide volume 1055 // ramping when effects are activated/deactivated. 1056 // When controlling an auxiliary effect, the EffectModule also provides an input buffer used by 1057 // the attached track(s) to accumulate their auxiliary channel. 1058 class EffectModule: public RefBase { 1059 public: 1060 EffectModule(const wp<ThreadBase>& wThread, 1061 const wp<AudioFlinger::EffectChain>& chain, 1062 effect_descriptor_t *desc, 1063 int id, 1064 int sessionId); 1065 ~EffectModule(); 1066 1067 enum effect_state { 1068 IDLE, 1069 RESTART, 1070 STARTING, 1071 ACTIVE, 1072 STOPPING, 1073 STOPPED, 1074 DESTROYED 1075 }; 1076 1077 int id() { return mId; } 1078 void process(); 1079 void updateState(); 1080 status_t command(uint32_t cmdCode, 1081 uint32_t cmdSize, 1082 void *pCmdData, 1083 uint32_t *replySize, 1084 void *pReplyData); 1085 1086 void reset_l(); 1087 status_t configure(); 1088 status_t init(); 1089 uint32_t state() { 1090 return mState; 1091 } 1092 uint32_t status() { 1093 return mStatus; 1094 } 1095 int sessionId() { 1096 return mSessionId; 1097 } 1098 status_t setEnabled(bool enabled); 1099 bool isEnabled(); 1100 bool isProcessEnabled(); 1101 1102 void setInBuffer(int16_t *buffer) { mConfig.inputCfg.buffer.s16 = buffer; } 1103 int16_t *inBuffer() { return mConfig.inputCfg.buffer.s16; } 1104 void setOutBuffer(int16_t *buffer) { mConfig.outputCfg.buffer.s16 = buffer; } 1105 int16_t *outBuffer() { return mConfig.outputCfg.buffer.s16; } 1106 void setChain(const wp<EffectChain>& chain) { mChain = chain; } 1107 void setThread(const wp<ThreadBase>& thread) { mThread = thread; } 1108 wp<ThreadBase>& thread() { return mThread; } 1109 1110 status_t addHandle(sp<EffectHandle>& handle); 1111 void disconnect(const wp<EffectHandle>& handle, bool unpiniflast); 1112 size_t removeHandle (const wp<EffectHandle>& handle); 1113 1114 effect_descriptor_t& desc() { return mDescriptor; } 1115 wp<EffectChain>& chain() { return mChain; } 1116 1117 status_t setDevice(uint32_t device); 1118 status_t setVolume(uint32_t *left, uint32_t *right, bool controller); 1119 status_t setMode(uint32_t mode); 1120 status_t start(); 1121 status_t stop(); 1122 void setSuspended(bool suspended); 1123 bool suspended(); 1124 1125 sp<EffectHandle> controlHandle(); 1126 1127 bool isPinned() { return mPinned; } 1128 void unPin() { mPinned = false; } 1129 1130 status_t dump(int fd, const Vector<String16>& args); 1131 1132 protected: 1133 friend class EffectHandle; 1134 friend class AudioFlinger; 1135 bool mPinned; 1136 1137 // Maximum time allocated to effect engines to complete the turn off sequence 1138 static const uint32_t MAX_DISABLE_TIME_MS = 10000; 1139 1140 EffectModule(const EffectModule&); 1141 EffectModule& operator = (const EffectModule&); 1142 1143 status_t start_l(); 1144 status_t stop_l(); 1145 1146 Mutex mLock; // mutex for process, commands and handles list protection 1147 wp<ThreadBase> mThread; // parent thread 1148 wp<EffectChain> mChain; // parent effect chain 1149 int mId; // this instance unique ID 1150 int mSessionId; // audio session ID 1151 effect_descriptor_t mDescriptor;// effect descriptor received from effect engine 1152 effect_config_t mConfig; // input and output audio configuration 1153 effect_handle_t mEffectInterface; // Effect module C API 1154 status_t mStatus; // initialization status 1155 uint32_t mState; // current activation state (effect_state) 1156 Vector< wp<EffectHandle> > mHandles; // list of client handles 1157 uint32_t mMaxDisableWaitCnt; // maximum grace period before forcing an effect off after 1158 // sending disable command. 1159 uint32_t mDisableWaitCnt; // current process() calls count during disable period. 1160 bool mSuspended; // effect is suspended: temporarily disabled by framework 1161 }; 1162 1163 // The EffectHandle class implements the IEffect interface. It provides resources 1164 // to receive parameter updates, keeps track of effect control 1165 // ownership and state and has a pointer to the EffectModule object it is controlling. 1166 // There is one EffectHandle object for each application controlling (or using) 1167 // an effect module. 1168 // The EffectHandle is obtained by calling AudioFlinger::createEffect(). 1169 class EffectHandle: public android::BnEffect { 1170 public: 1171 1172 EffectHandle(const sp<EffectModule>& effect, 1173 const sp<AudioFlinger::Client>& client, 1174 const sp<IEffectClient>& effectClient, 1175 int32_t priority); 1176 virtual ~EffectHandle(); 1177 1178 // IEffect 1179 virtual status_t enable(); 1180 virtual status_t disable(); 1181 virtual status_t command(uint32_t cmdCode, 1182 uint32_t cmdSize, 1183 void *pCmdData, 1184 uint32_t *replySize, 1185 void *pReplyData); 1186 virtual void disconnect(); 1187 virtual void disconnect(bool unpiniflast); 1188 virtual sp<IMemory> getCblk() const; 1189 virtual status_t onTransact(uint32_t code, const Parcel& data, 1190 Parcel* reply, uint32_t flags); 1191 1192 1193 // Give or take control of effect module 1194 // - hasControl: true if control is given, false if removed 1195 // - signal: true client app should be signaled of change, false otherwise 1196 // - enabled: state of the effect when control is passed 1197 void setControl(bool hasControl, bool signal, bool enabled); 1198 void commandExecuted(uint32_t cmdCode, 1199 uint32_t cmdSize, 1200 void *pCmdData, 1201 uint32_t replySize, 1202 void *pReplyData); 1203 void setEnabled(bool enabled); 1204 bool enabled() { return mEnabled; } 1205 1206 // Getters 1207 int id() { return mEffect->id(); } 1208 int priority() { return mPriority; } 1209 bool hasControl() { return mHasControl; } 1210 sp<EffectModule> effect() { return mEffect; } 1211 1212 void dump(char* buffer, size_t size); 1213 1214 protected: 1215 friend class AudioFlinger; 1216 friend class EffectModule; 1217 EffectHandle(const EffectHandle&); 1218 EffectHandle& operator =(const EffectHandle&); 1219 1220 sp<EffectModule> mEffect; // pointer to controlled EffectModule 1221 sp<IEffectClient> mEffectClient; // callback interface for client notifications 1222 sp<Client> mClient; // client for shared memory allocation 1223 sp<IMemory> mCblkMemory; // shared memory for control block 1224 effect_param_cblk_t* mCblk; // control block for deferred parameter setting via shared memory 1225 uint8_t* mBuffer; // pointer to parameter area in shared memory 1226 int mPriority; // client application priority to control the effect 1227 bool mHasControl; // true if this handle is controlling the effect 1228 bool mEnabled; // cached enable state: needed when the effect is 1229 // restored after being suspended 1230 }; 1231 1232 // the EffectChain class represents a group of effects associated to one audio session. 1233 // There can be any number of EffectChain objects per output mixer thread (PlaybackThread). 1234 // The EffecChain with session ID 0 contains global effects applied to the output mix. 1235 // Effects in this chain can be insert or auxiliary. Effects in other chains (attached to tracks) 1236 // are insert only. The EffectChain maintains an ordered list of effect module, the order corresponding 1237 // in the effect process order. When attached to a track (session ID != 0), it also provide it's own 1238 // input buffer used by the track as accumulation buffer. 1239 class EffectChain: public RefBase { 1240 public: 1241 EffectChain(const wp<ThreadBase>& wThread, int sessionId); 1242 ~EffectChain(); 1243 1244 // special key used for an entry in mSuspendedEffects keyed vector 1245 // corresponding to a suspend all request. 1246 static const int kKeyForSuspendAll = 0; 1247 1248 void process_l(); 1249 1250 void lock() { 1251 mLock.lock(); 1252 } 1253 void unlock() { 1254 mLock.unlock(); 1255 } 1256 1257 status_t addEffect_l(const sp<EffectModule>& handle); 1258 size_t removeEffect_l(const sp<EffectModule>& handle); 1259 1260 int sessionId() { return mSessionId; } 1261 void setSessionId(int sessionId) { mSessionId = sessionId; } 1262 1263 sp<EffectModule> getEffectFromDesc_l(effect_descriptor_t *descriptor); 1264 sp<EffectModule> getEffectFromId_l(int id); 1265 sp<EffectModule> getEffectFromType_l(const effect_uuid_t *type); 1266 bool setVolume_l(uint32_t *left, uint32_t *right); 1267 void setDevice_l(uint32_t device); 1268 void setMode_l(uint32_t mode); 1269 1270 void setInBuffer(int16_t *buffer, bool ownsBuffer = false) { 1271 mInBuffer = buffer; 1272 mOwnInBuffer = ownsBuffer; 1273 } 1274 int16_t *inBuffer() { 1275 return mInBuffer; 1276 } 1277 void setOutBuffer(int16_t *buffer) { 1278 mOutBuffer = buffer; 1279 } 1280 int16_t *outBuffer() { 1281 return mOutBuffer; 1282 } 1283 1284 void incTrackCnt() { android_atomic_inc(&mTrackCnt); } 1285 void decTrackCnt() { android_atomic_dec(&mTrackCnt); } 1286 int32_t trackCnt() { return mTrackCnt;} 1287 1288 void incActiveTrackCnt() { android_atomic_inc(&mActiveTrackCnt); } 1289 void decActiveTrackCnt() { android_atomic_dec(&mActiveTrackCnt); } 1290 int32_t activeTrackCnt() { return mActiveTrackCnt;} 1291 1292 uint32_t strategy() { return mStrategy; } 1293 void setStrategy(uint32_t strategy) 1294 { mStrategy = strategy; } 1295 1296 // suspend effect of the given type 1297 void setEffectSuspended_l(const effect_uuid_t *type, 1298 bool suspend); 1299 // suspend all eligible effects 1300 void setEffectSuspendedAll_l(bool suspend); 1301 // check if effects should be suspend or restored when a given effect is enable or disabled 1302 virtual void checkSuspendOnEffectEnabled(const sp<EffectModule>& effect, 1303 bool enabled); 1304 1305 status_t dump(int fd, const Vector<String16>& args); 1306 1307 protected: 1308 friend class AudioFlinger; 1309 EffectChain(const EffectChain&); 1310 EffectChain& operator =(const EffectChain&); 1311 1312 class SuspendedEffectDesc : public RefBase { 1313 public: 1314 SuspendedEffectDesc() : mRefCount(0) {} 1315 1316 int mRefCount; 1317 effect_uuid_t mType; 1318 wp<EffectModule> mEffect; 1319 }; 1320 1321 // get a list of effect modules to suspend when an effect of the type 1322 // passed is enabled. 1323 Vector< sp<EffectModule> > getSuspendEligibleEffects(); 1324 // get an effect module if it is currently enable 1325 sp<EffectModule> getEffectIfEnabled(const effect_uuid_t *type); 1326 // true if the effect whose descriptor is passed can be suspended 1327 // OEMs can modify the rules implemented in this method to exclude specific effect 1328 // types or implementations from the suspend/restore mechanism. 1329 bool isEffectEligibleForSuspend(const effect_descriptor_t& desc); 1330 1331 wp<ThreadBase> mThread; // parent mixer thread 1332 Mutex mLock; // mutex protecting effect list 1333 Vector<sp<EffectModule> > mEffects; // list of effect modules 1334 int mSessionId; // audio session ID 1335 int16_t *mInBuffer; // chain input buffer 1336 int16_t *mOutBuffer; // chain output buffer 1337 volatile int32_t mActiveTrackCnt; // number of active tracks connected 1338 volatile int32_t mTrackCnt; // number of tracks connected 1339 bool mOwnInBuffer; // true if the chain owns its input buffer 1340 int mVolumeCtrlIdx; // index of insert effect having control over volume 1341 uint32_t mLeftVolume; // previous volume on left channel 1342 uint32_t mRightVolume; // previous volume on right channel 1343 uint32_t mNewLeftVolume; // new volume on left channel 1344 uint32_t mNewRightVolume; // new volume on right channel 1345 uint32_t mStrategy; // strategy for this effect chain 1346 // mSuspendedEffects lists all effect currently suspended in the chain 1347 // use effect type UUID timelow field as key. There is no real risk of identical 1348 // timeLow fields among effect type UUIDs. 1349 KeyedVector< int, sp<SuspendedEffectDesc> > mSuspendedEffects; 1350 }; 1351 1352 struct AudioStreamOut { 1353 audio_hw_device_t *hwDev; 1354 audio_stream_out_t *stream; 1355 1356 AudioStreamOut(audio_hw_device_t *dev, audio_stream_out_t *out) : 1357 hwDev(dev), stream(out) {} 1358 }; 1359 1360 struct AudioStreamIn { 1361 audio_hw_device_t *hwDev; 1362 audio_stream_in_t *stream; 1363 1364 AudioStreamIn(audio_hw_device_t *dev, audio_stream_in_t *in) : 1365 hwDev(dev), stream(in) {} 1366 }; 1367 1368 struct AudioSessionRef { 1369 int sessionid; 1370 pid_t pid; 1371 int cnt; 1372 }; 1373 1374 friend class RecordThread; 1375 friend class PlaybackThread; 1376 1377 mutable Mutex mLock; 1378 1379 DefaultKeyedVector< pid_t, wp<Client> > mClients; 1380 1381 mutable Mutex mHardwareLock; 1382 audio_hw_device_t* mPrimaryHardwareDev; 1383 Vector<audio_hw_device_t*> mAudioHwDevs; 1384 mutable int mHardwareStatus; 1385 1386 1387 DefaultKeyedVector< int, sp<PlaybackThread> > mPlaybackThreads; 1388 PlaybackThread::stream_type_t mStreamTypes[AUDIO_STREAM_CNT]; 1389 float mMasterVolume; 1390 bool mMasterMute; 1391 1392 DefaultKeyedVector< int, sp<RecordThread> > mRecordThreads; 1393 1394 DefaultKeyedVector< pid_t, sp<NotificationClient> > mNotificationClients; 1395 volatile int32_t mNextUniqueId; 1396 uint32_t mMode; 1397 bool mBtNrecIsOff; 1398 1399 Vector<AudioSessionRef*> mAudioSessionRefs; 1400}; 1401 1402 1403// ---------------------------------------------------------------------------- 1404 1405}; // namespace android 1406 1407#endif // ANDROID_AUDIO_FLINGER_H 1408