1 /* 2 ** 3 ** Copyright 2008, 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_MEDIAPLAYERSERVICE_H 19 #define ANDROID_MEDIAPLAYERSERVICE_H 20 21 #include <arpa/inet.h> 22 #include <string> 23 24 #include <utils/threads.h> 25 #include <utils/Errors.h> 26 #include <utils/KeyedVector.h> 27 #include <utils/String8.h> 28 #include <utils/Vector.h> 29 30 #include <media/AidlConversion.h> 31 #include <media/AudioResamplerPublic.h> 32 #include <media/AudioSystem.h> 33 #include <media/AudioTrack.h> 34 #include <media/MediaPlayerInterface.h> 35 #include <media/Metadata.h> 36 #include <media/stagefright/foundation/ABase.h> 37 #include <mediautils/Synchronization.h> 38 #include <android/content/AttributionSourceState.h> 39 40 #include <system/audio.h> 41 42 namespace android { 43 44 using content::AttributionSourceState; 45 46 struct AVSyncSettings; 47 class DeathNotifier; 48 class IDataSource; 49 class IMediaRecorder; 50 class IMediaMetadataRetriever; 51 class IRemoteDisplay; 52 class IRemoteDisplayClient; 53 class MediaRecorderClient; 54 55 #define CALLBACK_ANTAGONIZER 0 56 #if CALLBACK_ANTAGONIZER 57 class Antagonizer { 58 public: 59 Antagonizer(const sp<MediaPlayerBase::Listener> &listener); start()60 void start() { mActive = true; } stop()61 void stop() { mActive = false; } 62 void kill(); 63 private: 64 static const int interval; 65 Antagonizer(); 66 static int callbackThread(void* cookie); 67 Mutex mLock; 68 Condition mCondition; 69 bool mExit; 70 bool mActive; 71 sp<MediaPlayerBase::Listener> mListener; 72 }; 73 #endif 74 75 class MediaPlayerService : public BnMediaPlayerService 76 { 77 class Client; 78 79 class AudioOutput : public MediaPlayerBase::AudioSink 80 { 81 class CallbackData; 82 83 public: 84 AudioOutput( 85 audio_session_t sessionId, 86 const AttributionSourceState& attributionSource, 87 const audio_attributes_t * attr, 88 const sp<AudioSystem::AudioDeviceCallback>& deviceCallback); 89 virtual ~AudioOutput(); 90 ready()91 virtual bool ready() const { return mTrack != 0; } 92 virtual ssize_t bufferSize() const; 93 virtual ssize_t frameCount() const; 94 virtual ssize_t channelCount() const; 95 virtual ssize_t frameSize() const; 96 virtual uint32_t latency() const; 97 virtual float msecsPerFrame() const; 98 virtual status_t getPosition(uint32_t *position) const; 99 virtual status_t getTimestamp(AudioTimestamp &ts) const; 100 virtual int64_t getPlayedOutDurationUs(int64_t nowUs) const; 101 virtual status_t getFramesWritten(uint32_t *frameswritten) const; 102 virtual audio_session_t getSessionId() const; 103 virtual uint32_t getSampleRate() const; 104 virtual int64_t getBufferDurationInUs() const; getFlags()105 virtual audio_output_flags_t getFlags() const { return mFlags; } 106 107 virtual status_t open( 108 uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask, 109 audio_format_t format, int bufferCount, 110 AudioCallback cb, void *cookie, 111 audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE, 112 const audio_offload_info_t *offloadInfo = NULL, 113 bool doNotReconnect = false, 114 uint32_t suggestedFrameCount = 0); 115 116 virtual status_t start(); 117 virtual ssize_t write(const void* buffer, size_t size, bool blocking = true); 118 virtual void stop(); 119 virtual void flush(); 120 virtual void pause(); 121 virtual void close(); 122 void setAudioStreamType(audio_stream_type_t streamType); getAudioStreamType()123 virtual audio_stream_type_t getAudioStreamType() const { return mStreamType; } 124 void setAudioAttributes(const audio_attributes_t * attributes); 125 126 void setVolume(float left, float right); 127 virtual status_t setPlaybackRate(const AudioPlaybackRate& rate); 128 virtual status_t getPlaybackRate(AudioPlaybackRate* rate /* nonnull */); 129 130 status_t setAuxEffectSendLevel(float level); 131 status_t attachAuxEffect(int effectId); 132 virtual status_t dump(int fd, const Vector<String16>& args) const; 133 134 static bool isOnEmulator(); 135 static int getMinBufferCount(); 136 void setNextOutput(const sp<AudioOutput>& nextOutput); 137 void switchToNextOutput(); needsTrailingPadding()138 virtual bool needsTrailingPadding() { return mNextOutput == NULL; } 139 virtual status_t setParameters(const String8& keyValuePairs); 140 virtual String8 getParameters(const String8& keys); 141 142 virtual media::VolumeShaper::Status applyVolumeShaper( 143 const sp<media::VolumeShaper::Configuration>& configuration, 144 const sp<media::VolumeShaper::Operation>& operation) override; 145 virtual sp<media::VolumeShaper::State> getVolumeShaperState(int id) override; 146 147 // AudioRouting 148 virtual status_t setOutputDevice(audio_port_handle_t deviceId); 149 virtual status_t getRoutedDeviceId(audio_port_handle_t* deviceId); 150 virtual status_t enableAudioDeviceCallback(bool enabled); 151 152 private: 153 static void setMinBufferCount(); 154 static void CallbackWrapper( 155 int event, void *me, void *info); 156 void deleteRecycledTrack_l(); 157 void close_l(); 158 status_t updateTrack(); 159 160 sp<AudioTrack> mTrack; 161 sp<AudioTrack> mRecycledTrack; 162 sp<AudioOutput> mNextOutput; 163 AudioCallback mCallback; 164 void * mCallbackCookie; 165 sp<CallbackData> mCallbackData; 166 audio_stream_type_t mStreamType; 167 audio_attributes_t * mAttributes; 168 float mLeftVolume; 169 float mRightVolume; 170 AudioPlaybackRate mPlaybackRate; 171 uint32_t mSampleRateHz; // sample rate of the content, as set in open() 172 float mMsecsPerFrame; 173 size_t mFrameSize; 174 audio_session_t mSessionId; 175 AttributionSourceState mAttributionSource; 176 float mSendLevel; 177 int mAuxEffectId; 178 audio_output_flags_t mFlags; 179 sp<media::VolumeHandler> mVolumeHandler; 180 audio_port_handle_t mSelectedDeviceId; 181 audio_port_handle_t mRoutedDeviceId; 182 bool mDeviceCallbackEnabled; 183 wp<AudioSystem::AudioDeviceCallback> mDeviceCallback; 184 mutable Mutex mLock; 185 186 // static variables below not protected by mutex 187 static bool mIsOnEmulator; 188 static int mMinBufferCount; // 12 for emulator; otherwise 4 189 190 // CallbackData is what is passed to the AudioTrack as the "user" data. 191 // We need to be able to target this to a different Output on the fly, 192 // so we can't use the Output itself for this. 193 class CallbackData : public AudioTrack::IAudioTrackCallback { 194 friend AudioOutput; 195 public: CallbackData(const wp<AudioOutput> & cookie)196 explicit CallbackData(const wp<AudioOutput>& cookie) { 197 mData = cookie; 198 mSwitching = false; 199 } getOutput()200 sp<AudioOutput> getOutput() const { return mData.load().promote(); } setOutput(const wp<AudioOutput> & newcookie)201 void setOutput(const wp<AudioOutput>& newcookie) { mData.store(newcookie); } 202 // lock/unlock are used by the callback before accessing the payload of this object lock()203 void lock() const { mLock.lock(); } unlock()204 void unlock() const { mLock.unlock(); } 205 206 // tryBeginTrackSwitch/endTrackSwitch are used when the CallbackData is handed over 207 // to the next sink. 208 209 // tryBeginTrackSwitch() returns true only if it obtains the lock. tryBeginTrackSwitch()210 bool tryBeginTrackSwitch() { 211 LOG_ALWAYS_FATAL_IF(mSwitching, "tryBeginTrackSwitch() already called"); 212 if (mLock.tryLock() != OK) { 213 return false; 214 } 215 mSwitching = true; 216 return true; 217 } endTrackSwitch()218 void endTrackSwitch() { 219 if (mSwitching) { 220 mLock.unlock(); 221 } 222 mSwitching = false; 223 } 224 protected: 225 size_t onMoreData(const AudioTrack::Buffer& buffer) override; 226 void onUnderrun() override; 227 void onStreamEnd() override; 228 void onNewIAudioTrack() override; 229 private: 230 mediautils::atomic_wp<AudioOutput> mData; 231 mutable Mutex mLock; // a recursive mutex might make this unnecessary. 232 bool mSwitching; 233 DISALLOW_EVIL_CONSTRUCTORS(CallbackData); 234 }; 235 236 }; // AudioOutput 237 238 public: 239 static void instantiate(); 240 241 // IMediaPlayerService interface 242 virtual sp<IMediaRecorder> createMediaRecorder(const AttributionSourceState &attributionSource); 243 void removeMediaRecorderClient(const wp<MediaRecorderClient>& client); 244 virtual sp<IMediaMetadataRetriever> createMetadataRetriever(); 245 246 virtual sp<IMediaPlayer> create(const sp<IMediaPlayerClient>& client, 247 audio_session_t audioSessionId, 248 const AttributionSourceState& attributionSource); 249 250 virtual sp<IMediaCodecList> getCodecList() const; 251 252 virtual sp<IRemoteDisplay> listenForRemoteDisplay(const String16 &opPackageName, 253 const sp<IRemoteDisplayClient>& client, const String8& iface); 254 virtual status_t dump(int fd, const Vector<String16>& args); 255 256 void removeClient(const wp<Client>& client); 257 bool hasClient(wp<Client> client); 258 259 enum { 260 MEDIASERVER_PROCESS_DEATH = 0, 261 MEDIAEXTRACTOR_PROCESS_DEATH = 1, 262 MEDIACODEC_PROCESS_DEATH = 2, 263 AUDIO_PROCESS_DEATH = 3, // currently no need to track this 264 CAMERA_PROCESS_DEATH = 4 265 }; 266 267 // Collect info of the codec usage from media player and media recorder 268 virtual void addBatteryData(uint32_t params); 269 // API for the Battery app to pull the data of codecs usage 270 virtual status_t pullBatteryData(Parcel* reply); 271 private: 272 struct BatteryTracker { 273 BatteryTracker(); 274 // Collect info of the codec usage from media player and media recorder 275 void addBatteryData(uint32_t params); 276 // API for the Battery app to pull the data of codecs usage 277 status_t pullBatteryData(Parcel* reply); 278 279 private: 280 // For battery usage tracking purpose 281 struct BatteryUsageInfo { 282 // how many streams are being played by one UID 283 int refCount; 284 // a temp variable to store the duration(ms) of audio codecs 285 // when we start a audio codec, we minus the system time from audioLastTime 286 // when we pause it, we add the system time back to the audioLastTime 287 // so after the pause, audioLastTime = pause time - start time 288 // if multiple audio streams are played (or recorded), then audioLastTime 289 // = the total playing time of all the streams 290 int32_t audioLastTime; 291 // when all the audio streams are being paused, we assign audioLastTime to 292 // this variable, so this value could be provided to the battery app 293 // in the next pullBatteryData call 294 int32_t audioTotalTime; 295 296 int32_t videoLastTime; 297 int32_t videoTotalTime; 298 }; 299 KeyedVector<int, BatteryUsageInfo> mBatteryData; 300 301 enum { 302 SPEAKER, 303 OTHER_AUDIO_DEVICE, 304 SPEAKER_AND_OTHER, 305 NUM_AUDIO_DEVICES 306 }; 307 308 struct BatteryAudioFlingerUsageInfo { 309 int refCount; // how many audio streams are being played 310 int deviceOn[NUM_AUDIO_DEVICES]; // whether the device is currently used 311 int32_t lastTime[NUM_AUDIO_DEVICES]; // in ms 312 // totalTime[]: total time of audio output devices usage 313 int32_t totalTime[NUM_AUDIO_DEVICES]; // in ms 314 }; 315 316 // This varialble is used to record the usage of audio output device 317 // for battery app 318 BatteryAudioFlingerUsageInfo mBatteryAudio; 319 320 mutable Mutex mLock; 321 }; 322 BatteryTracker mBatteryTracker; 323 324 class Client : public BnMediaPlayer { 325 // IMediaPlayer interface 326 virtual void disconnect(); 327 virtual status_t setVideoSurfaceTexture( 328 const sp<IGraphicBufferProducer>& bufferProducer); 329 virtual status_t setBufferingSettings(const BufferingSettings& buffering) override; 330 virtual status_t getBufferingSettings( 331 BufferingSettings* buffering /* nonnull */) override; 332 virtual status_t prepareAsync(); 333 virtual status_t start(); 334 virtual status_t stop(); 335 virtual status_t pause(); 336 virtual status_t isPlaying(bool* state); 337 virtual status_t setPlaybackSettings(const AudioPlaybackRate& rate); 338 virtual status_t getPlaybackSettings(AudioPlaybackRate* rate /* nonnull */); 339 virtual status_t setSyncSettings(const AVSyncSettings& rate, float videoFpsHint); 340 virtual status_t getSyncSettings(AVSyncSettings* rate /* nonnull */, 341 float* videoFps /* nonnull */); 342 virtual status_t seekTo( 343 int msec, 344 MediaPlayerSeekMode mode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC); 345 virtual status_t getCurrentPosition(int* msec); 346 virtual status_t getDuration(int* msec); 347 virtual status_t reset(); 348 virtual status_t notifyAt(int64_t mediaTimeUs); 349 virtual status_t setAudioStreamType(audio_stream_type_t type); 350 virtual status_t setLooping(int loop); 351 virtual status_t setVolume(float leftVolume, float rightVolume); 352 virtual status_t invoke(const Parcel& request, Parcel *reply); 353 virtual status_t setMetadataFilter(const Parcel& filter); 354 virtual status_t getMetadata(bool update_only, 355 bool apply_filter, 356 Parcel *reply); 357 virtual status_t setAuxEffectSendLevel(float level); 358 virtual status_t attachAuxEffect(int effectId); 359 virtual status_t setParameter(int key, const Parcel &request); 360 virtual status_t getParameter(int key, Parcel *reply); 361 virtual status_t setRetransmitEndpoint(const struct sockaddr_in* endpoint); 362 virtual status_t getRetransmitEndpoint(struct sockaddr_in* endpoint); 363 virtual status_t setNextPlayer(const sp<IMediaPlayer>& player); 364 365 virtual media::VolumeShaper::Status applyVolumeShaper( 366 const sp<media::VolumeShaper::Configuration>& configuration, 367 const sp<media::VolumeShaper::Operation>& operation) override; 368 virtual sp<media::VolumeShaper::State> getVolumeShaperState(int id) override; 369 370 sp<MediaPlayerBase> createPlayer(player_type playerType); 371 372 virtual status_t setDataSource( 373 const sp<IMediaHTTPService> &httpService, 374 const char *url, 375 const KeyedVector<String8, String8> *headers); 376 377 virtual status_t setDataSource(int fd, int64_t offset, int64_t length); 378 379 virtual status_t setDataSource(const sp<IStreamSource> &source); 380 virtual status_t setDataSource(const sp<IDataSource> &source); 381 virtual status_t setDataSource(const String8& rtpParams); 382 383 384 sp<MediaPlayerBase> setDataSource_pre(player_type playerType); 385 status_t setDataSource_post(const sp<MediaPlayerBase>& p, 386 status_t status); 387 388 void notify(int msg, int ext1, int ext2, const Parcel *obj); 389 pid()390 pid_t pid() const { 391 return VALUE_OR_FATAL(aidl2legacy_int32_t_pid_t(mAttributionSource.pid)); 392 } 393 virtual status_t dump(int fd, const Vector<String16>& args); 394 getAudioSessionId()395 audio_session_t getAudioSessionId() { return mAudioSessionId; } 396 // Modular DRM 397 virtual status_t prepareDrm(const uint8_t uuid[16], const Vector<uint8_t>& drmSessionId); 398 virtual status_t releaseDrm(); 399 // AudioRouting 400 virtual status_t setOutputDevice(audio_port_handle_t deviceId); 401 virtual status_t getRoutedDeviceId(audio_port_handle_t* deviceId); 402 virtual status_t enableAudioDeviceCallback(bool enabled); 403 404 private: 405 class AudioDeviceUpdatedNotifier: public AudioSystem::AudioDeviceCallback 406 { 407 public: AudioDeviceUpdatedNotifier(const sp<MediaPlayerBase> & listener)408 AudioDeviceUpdatedNotifier(const sp<MediaPlayerBase>& listener) { 409 mListener = listener; 410 } ~AudioDeviceUpdatedNotifier()411 ~AudioDeviceUpdatedNotifier() {} 412 413 virtual void onAudioDeviceUpdate(audio_io_handle_t audioIo, 414 audio_port_handle_t deviceId); 415 416 private: 417 wp<MediaPlayerBase> mListener; 418 }; 419 420 friend class MediaPlayerService; 421 Client( const sp<MediaPlayerService>& service, 422 const AttributionSourceState& attributionSource, 423 int32_t connId, 424 const sp<IMediaPlayerClient>& client, 425 audio_session_t audioSessionId); 426 Client(); 427 virtual ~Client(); 428 429 void deletePlayer(); 430 getPlayer()431 sp<MediaPlayerBase> getPlayer() const { Mutex::Autolock lock(mLock); return mPlayer; } 432 433 434 435 // @param type Of the metadata to be tested. 436 // @return true if the metadata should be dropped according to 437 // the filters. 438 bool shouldDropMetadata(media::Metadata::Type type) const; 439 440 // Add a new element to the set of metadata updated. Noop if 441 // the element exists already. 442 // @param type Of the metadata to be recorded. 443 void addNewMetadataUpdate(media::Metadata::Type type); 444 445 // Disconnect from the currently connected ANativeWindow. 446 void disconnectNativeWindow_l(); 447 448 status_t setAudioAttributes_l(const Parcel &request); 449 450 class Listener : public MediaPlayerBase::Listener { 451 public: Listener(const wp<Client> & client)452 Listener(const wp<Client> &client) : mClient(client) {} ~Listener()453 virtual ~Listener() {} notify(int msg,int ext1,int ext2,const Parcel * obj)454 virtual void notify(int msg, int ext1, int ext2, const Parcel *obj) { 455 sp<Client> client = mClient.promote(); 456 if (client != NULL) { 457 client->notify(msg, ext1, ext2, obj); 458 } 459 } 460 private: 461 wp<Client> mClient; 462 }; 463 464 mutable Mutex mLock; 465 sp<MediaPlayerBase> mPlayer; 466 sp<MediaPlayerService> mService; 467 sp<IMediaPlayerClient> mClient; 468 sp<AudioOutput> mAudioOutput; 469 const AttributionSourceState mAttributionSource; 470 status_t mStatus; 471 bool mLoop; 472 int32_t mConnId; 473 audio_session_t mAudioSessionId; 474 audio_attributes_t * mAudioAttributes; 475 sp<ANativeWindow> mConnectedWindow; 476 sp<IBinder> mConnectedWindowBinder; 477 struct sockaddr_in mRetransmitEndpoint; 478 bool mRetransmitEndpointValid; 479 sp<Client> mNextClient; 480 sp<MediaPlayerBase::Listener> mListener; 481 482 // Metadata filters. 483 media::Metadata::Filter mMetadataAllow; // protected by mLock 484 media::Metadata::Filter mMetadataDrop; // protected by mLock 485 486 // Metadata updated. For each MEDIA_INFO_METADATA_UPDATE 487 // notification we try to update mMetadataUpdated which is a 488 // set: no duplicate. 489 // getMetadata clears this set. 490 media::Metadata::Filter mMetadataUpdated; // protected by mLock 491 492 std::vector<DeathNotifier> mDeathNotifiers; 493 sp<AudioDeviceUpdatedNotifier> mAudioDeviceUpdatedListener; 494 #if CALLBACK_ANTAGONIZER 495 Antagonizer* mAntagonizer; 496 #endif 497 }; // Client 498 499 // ---------------------------------------------------------------------------- 500 501 MediaPlayerService(); 502 virtual ~MediaPlayerService(); 503 504 mutable Mutex mLock; 505 SortedVector< wp<Client> > mClients; 506 SortedVector< wp<MediaRecorderClient> > mMediaRecorderClients; 507 int32_t mNextConnId; 508 }; 509 510 // ---------------------------------------------------------------------------- 511 512 }; // namespace android 513 514 #endif // ANDROID_MEDIAPLAYERSERVICE_H 515