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 23 #include <utils/threads.h> 24 #include <utils/Errors.h> 25 #include <utils/KeyedVector.h> 26 #include <utils/String8.h> 27 #include <utils/Vector.h> 28 29 #include <media/MediaPlayerInterface.h> 30 #include <media/Metadata.h> 31 #include <media/stagefright/foundation/ABase.h> 32 33 #include <system/audio.h> 34 35 namespace android { 36 37 class AudioTrack; 38 class IMediaRecorder; 39 class IMediaMetadataRetriever; 40 class IOMX; 41 class IRemoteDisplay; 42 class IRemoteDisplayClient; 43 class MediaRecorderClient; 44 45 #define CALLBACK_ANTAGONIZER 0 46 #if CALLBACK_ANTAGONIZER 47 class Antagonizer { 48 public: 49 Antagonizer(notify_callback_f cb, void* client); 50 void start() { mActive = true; } 51 void stop() { mActive = false; } 52 void kill(); 53 private: 54 static const int interval; 55 Antagonizer(); 56 static int callbackThread(void* cookie); 57 Mutex mLock; 58 Condition mCondition; 59 bool mExit; 60 bool mActive; 61 void* mClient; 62 notify_callback_f mCb; 63 }; 64 #endif 65 66 class MediaPlayerService : public BnMediaPlayerService 67 { 68 class Client; 69 70 class AudioOutput : public MediaPlayerBase::AudioSink 71 { 72 class CallbackData; 73 74 public: 75 AudioOutput(int sessionId, int uid); 76 virtual ~AudioOutput(); 77 78 virtual bool ready() const { return mTrack != 0; } 79 virtual bool realtime() const { return true; } 80 virtual ssize_t bufferSize() const; 81 virtual ssize_t frameCount() const; 82 virtual ssize_t channelCount() const; 83 virtual ssize_t frameSize() const; 84 virtual uint32_t latency() const; 85 virtual float msecsPerFrame() const; 86 virtual status_t getPosition(uint32_t *position) const; 87 virtual status_t getFramesWritten(uint32_t *frameswritten) const; 88 virtual int getSessionId() const; 89 90 virtual status_t open( 91 uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask, 92 audio_format_t format, int bufferCount, 93 AudioCallback cb, void *cookie, 94 audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE, 95 const audio_offload_info_t *offloadInfo = NULL); 96 97 virtual status_t start(); 98 virtual ssize_t write(const void* buffer, size_t size); 99 virtual void stop(); 100 virtual void flush(); 101 virtual void pause(); 102 virtual void close(); 103 void setAudioStreamType(audio_stream_type_t streamType) { 104 mStreamType = streamType; } 105 virtual audio_stream_type_t getAudioStreamType() const { return mStreamType; } 106 107 void setVolume(float left, float right); 108 virtual status_t setPlaybackRatePermille(int32_t ratePermille); 109 status_t setAuxEffectSendLevel(float level); 110 status_t attachAuxEffect(int effectId); 111 virtual status_t dump(int fd, const Vector<String16>& args) const; 112 113 static bool isOnEmulator(); 114 static int getMinBufferCount(); 115 void setNextOutput(const sp<AudioOutput>& nextOutput); 116 void switchToNextOutput(); 117 virtual bool needsTrailingPadding() { return mNextOutput == NULL; } 118 virtual status_t setParameters(const String8& keyValuePairs); 119 virtual String8 getParameters(const String8& keys); 120 121 private: 122 static void setMinBufferCount(); 123 static void CallbackWrapper( 124 int event, void *me, void *info); 125 void deleteRecycledTrack(); 126 127 sp<AudioTrack> mTrack; 128 sp<AudioTrack> mRecycledTrack; 129 sp<AudioOutput> mNextOutput; 130 AudioCallback mCallback; 131 void * mCallbackCookie; 132 CallbackData * mCallbackData; 133 uint64_t mBytesWritten; 134 audio_stream_type_t mStreamType; 135 float mLeftVolume; 136 float mRightVolume; 137 int32_t mPlaybackRatePermille; 138 uint32_t mSampleRateHz; // sample rate of the content, as set in open() 139 float mMsecsPerFrame; 140 int mSessionId; 141 int mUid; 142 float mSendLevel; 143 int mAuxEffectId; 144 static bool mIsOnEmulator; 145 static int mMinBufferCount; // 12 for emulator; otherwise 4 146 audio_output_flags_t mFlags; 147 148 // CallbackData is what is passed to the AudioTrack as the "user" data. 149 // We need to be able to target this to a different Output on the fly, 150 // so we can't use the Output itself for this. 151 class CallbackData { 152 public: 153 CallbackData(AudioOutput *cookie) { 154 mData = cookie; 155 mSwitching = false; 156 } 157 AudioOutput * getOutput() { return mData;} 158 void setOutput(AudioOutput* newcookie) { mData = newcookie; } 159 // lock/unlock are used by the callback before accessing the payload of this object 160 void lock() { mLock.lock(); } 161 void unlock() { mLock.unlock(); } 162 // beginTrackSwitch/endTrackSwitch are used when this object is being handed over 163 // to the next sink. 164 void beginTrackSwitch() { mLock.lock(); mSwitching = true; } 165 void endTrackSwitch() { 166 if (mSwitching) { 167 mLock.unlock(); 168 } 169 mSwitching = false; 170 } 171 private: 172 AudioOutput * mData; 173 mutable Mutex mLock; 174 bool mSwitching; 175 DISALLOW_EVIL_CONSTRUCTORS(CallbackData); 176 }; 177 178 }; // AudioOutput 179 180 181 class AudioCache : public MediaPlayerBase::AudioSink 182 { 183 public: 184 AudioCache(const sp<IMemoryHeap>& heap); 185 virtual ~AudioCache() {} 186 187 virtual bool ready() const { return (mChannelCount > 0) && (mHeap->getHeapID() > 0); } 188 virtual bool realtime() const { return false; } 189 virtual ssize_t bufferSize() const { return frameSize() * mFrameCount; } 190 virtual ssize_t frameCount() const { return mFrameCount; } 191 virtual ssize_t channelCount() const { return (ssize_t)mChannelCount; } 192 virtual ssize_t frameSize() const { return ssize_t(mChannelCount * ((mFormat == AUDIO_FORMAT_PCM_16_BIT)?sizeof(int16_t):sizeof(u_int8_t))); } 193 virtual uint32_t latency() const; 194 virtual float msecsPerFrame() const; 195 virtual status_t getPosition(uint32_t *position) const; 196 virtual status_t getFramesWritten(uint32_t *frameswritten) const; 197 virtual int getSessionId() const; 198 199 virtual status_t open( 200 uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask, 201 audio_format_t format, int bufferCount = 1, 202 AudioCallback cb = NULL, void *cookie = NULL, 203 audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE, 204 const audio_offload_info_t *offloadInfo = NULL); 205 206 virtual status_t start(); 207 virtual ssize_t write(const void* buffer, size_t size); 208 virtual void stop(); 209 virtual void flush() {} 210 virtual void pause() {} 211 virtual void close() {} 212 void setAudioStreamType(audio_stream_type_t streamType) {} 213 // stream type is not used for AudioCache 214 virtual audio_stream_type_t getAudioStreamType() const { return AUDIO_STREAM_DEFAULT; } 215 216 void setVolume(float left, float right) {} 217 virtual status_t setPlaybackRatePermille(int32_t ratePermille) { return INVALID_OPERATION; } 218 uint32_t sampleRate() const { return mSampleRate; } 219 audio_format_t format() const { return mFormat; } 220 size_t size() const { return mSize; } 221 status_t wait(); 222 223 sp<IMemoryHeap> getHeap() const { return mHeap; } 224 225 static void notify(void* cookie, int msg, 226 int ext1, int ext2, const Parcel *obj); 227 virtual status_t dump(int fd, const Vector<String16>& args) const; 228 229 private: 230 AudioCache(); 231 232 Mutex mLock; 233 Condition mSignal; 234 sp<IMemoryHeap> mHeap; 235 float mMsecsPerFrame; 236 uint16_t mChannelCount; 237 audio_format_t mFormat; 238 ssize_t mFrameCount; 239 uint32_t mSampleRate; 240 uint32_t mSize; 241 int mError; 242 bool mCommandComplete; 243 244 sp<Thread> mCallbackThread; 245 }; // AudioCache 246 247 public: 248 static void instantiate(); 249 250 // IMediaPlayerService interface 251 virtual sp<IMediaRecorder> createMediaRecorder(); 252 void removeMediaRecorderClient(wp<MediaRecorderClient> client); 253 virtual sp<IMediaMetadataRetriever> createMetadataRetriever(); 254 255 virtual sp<IMediaPlayer> create(const sp<IMediaPlayerClient>& client, int audioSessionId); 256 257 virtual status_t decode(const char* url, uint32_t *pSampleRate, int* pNumChannels, 258 audio_format_t* pFormat, 259 const sp<IMemoryHeap>& heap, size_t *pSize); 260 virtual status_t decode(int fd, int64_t offset, int64_t length, 261 uint32_t *pSampleRate, int* pNumChannels, 262 audio_format_t* pFormat, 263 const sp<IMemoryHeap>& heap, size_t *pSize); 264 virtual sp<IOMX> getOMX(); 265 virtual sp<ICrypto> makeCrypto(); 266 virtual sp<IDrm> makeDrm(); 267 virtual sp<IHDCP> makeHDCP(bool createEncryptionModule); 268 269 virtual sp<IRemoteDisplay> listenForRemoteDisplay(const sp<IRemoteDisplayClient>& client, 270 const String8& iface); 271 virtual status_t dump(int fd, const Vector<String16>& args); 272 273 virtual status_t updateProxyConfig( 274 const char *host, int32_t port, const char *exclusionList); 275 276 void removeClient(wp<Client> client); 277 278 // For battery usage tracking purpose 279 struct BatteryUsageInfo { 280 // how many streams are being played by one UID 281 int refCount; 282 // a temp variable to store the duration(ms) of audio codecs 283 // when we start a audio codec, we minus the system time from audioLastTime 284 // when we pause it, we add the system time back to the audioLastTime 285 // so after the pause, audioLastTime = pause time - start time 286 // if multiple audio streams are played (or recorded), then audioLastTime 287 // = the total playing time of all the streams 288 int32_t audioLastTime; 289 // when all the audio streams are being paused, we assign audioLastTime to 290 // this variable, so this value could be provided to the battery app 291 // in the next pullBatteryData call 292 int32_t audioTotalTime; 293 294 int32_t videoLastTime; 295 int32_t videoTotalTime; 296 }; 297 KeyedVector<int, BatteryUsageInfo> mBatteryData; 298 299 enum { 300 SPEAKER, 301 OTHER_AUDIO_DEVICE, 302 SPEAKER_AND_OTHER, 303 NUM_AUDIO_DEVICES 304 }; 305 306 struct BatteryAudioFlingerUsageInfo { 307 int refCount; // how many audio streams are being played 308 int deviceOn[NUM_AUDIO_DEVICES]; // whether the device is currently used 309 int32_t lastTime[NUM_AUDIO_DEVICES]; // in ms 310 // totalTime[]: total time of audio output devices usage 311 int32_t totalTime[NUM_AUDIO_DEVICES]; // in ms 312 }; 313 314 // This varialble is used to record the usage of audio output device 315 // for battery app 316 BatteryAudioFlingerUsageInfo mBatteryAudio; 317 318 // Collect info of the codec usage from media player and media recorder 319 virtual void addBatteryData(uint32_t params); 320 // API for the Battery app to pull the data of codecs usage 321 virtual status_t pullBatteryData(Parcel* reply); 322 private: 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 prepareAsync(); 330 virtual status_t start(); 331 virtual status_t stop(); 332 virtual status_t pause(); 333 virtual status_t isPlaying(bool* state); 334 virtual status_t seekTo(int msec); 335 virtual status_t getCurrentPosition(int* msec); 336 virtual status_t getDuration(int* msec); 337 virtual status_t reset(); 338 virtual status_t setAudioStreamType(audio_stream_type_t type); 339 virtual status_t setLooping(int loop); 340 virtual status_t setVolume(float leftVolume, float rightVolume); 341 virtual status_t invoke(const Parcel& request, Parcel *reply); 342 virtual status_t setMetadataFilter(const Parcel& filter); 343 virtual status_t getMetadata(bool update_only, 344 bool apply_filter, 345 Parcel *reply); 346 virtual status_t setAuxEffectSendLevel(float level); 347 virtual status_t attachAuxEffect(int effectId); 348 virtual status_t setParameter(int key, const Parcel &request); 349 virtual status_t getParameter(int key, Parcel *reply); 350 virtual status_t setRetransmitEndpoint(const struct sockaddr_in* endpoint); 351 virtual status_t getRetransmitEndpoint(struct sockaddr_in* endpoint); 352 virtual status_t setNextPlayer(const sp<IMediaPlayer>& player); 353 354 sp<MediaPlayerBase> createPlayer(player_type playerType); 355 356 virtual status_t setDataSource( 357 const char *url, 358 const KeyedVector<String8, String8> *headers); 359 360 virtual status_t setDataSource(int fd, int64_t offset, int64_t length); 361 362 virtual status_t setDataSource(const sp<IStreamSource> &source); 363 364 sp<MediaPlayerBase> setDataSource_pre(player_type playerType); 365 void setDataSource_post(const sp<MediaPlayerBase>& p, 366 status_t status); 367 368 static void notify(void* cookie, int msg, 369 int ext1, int ext2, const Parcel *obj); 370 371 pid_t pid() const { return mPid; } 372 virtual status_t dump(int fd, const Vector<String16>& args) const; 373 374 int getAudioSessionId() { return mAudioSessionId; } 375 376 private: 377 friend class MediaPlayerService; 378 Client( const sp<MediaPlayerService>& service, 379 pid_t pid, 380 int32_t connId, 381 const sp<IMediaPlayerClient>& client, 382 int audioSessionId, 383 uid_t uid); 384 Client(); 385 virtual ~Client(); 386 387 void deletePlayer(); 388 389 sp<MediaPlayerBase> getPlayer() const { Mutex::Autolock lock(mLock); return mPlayer; } 390 391 392 393 // @param type Of the metadata to be tested. 394 // @return true if the metadata should be dropped according to 395 // the filters. 396 bool shouldDropMetadata(media::Metadata::Type type) const; 397 398 // Add a new element to the set of metadata updated. Noop if 399 // the element exists already. 400 // @param type Of the metadata to be recorded. 401 void addNewMetadataUpdate(media::Metadata::Type type); 402 403 // Disconnect from the currently connected ANativeWindow. 404 void disconnectNativeWindow(); 405 406 mutable Mutex mLock; 407 sp<MediaPlayerBase> mPlayer; 408 sp<MediaPlayerService> mService; 409 sp<IMediaPlayerClient> mClient; 410 sp<AudioOutput> mAudioOutput; 411 pid_t mPid; 412 status_t mStatus; 413 bool mLoop; 414 int32_t mConnId; 415 int mAudioSessionId; 416 uid_t mUID; 417 sp<ANativeWindow> mConnectedWindow; 418 sp<IBinder> mConnectedWindowBinder; 419 struct sockaddr_in mRetransmitEndpoint; 420 bool mRetransmitEndpointValid; 421 sp<Client> mNextClient; 422 423 // Metadata filters. 424 media::Metadata::Filter mMetadataAllow; // protected by mLock 425 media::Metadata::Filter mMetadataDrop; // protected by mLock 426 427 // Metadata updated. For each MEDIA_INFO_METADATA_UPDATE 428 // notification we try to update mMetadataUpdated which is a 429 // set: no duplicate. 430 // getMetadata clears this set. 431 media::Metadata::Filter mMetadataUpdated; // protected by mLock 432 433 #if CALLBACK_ANTAGONIZER 434 Antagonizer* mAntagonizer; 435 #endif 436 }; // Client 437 438 // ---------------------------------------------------------------------------- 439 440 MediaPlayerService(); 441 virtual ~MediaPlayerService(); 442 443 mutable Mutex mLock; 444 SortedVector< wp<Client> > mClients; 445 SortedVector< wp<MediaRecorderClient> > mMediaRecorderClients; 446 int32_t mNextConnId; 447 sp<IOMX> mOMX; 448 sp<ICrypto> mCrypto; 449 }; 450 451 // ---------------------------------------------------------------------------- 452 453 }; // namespace android 454 455 #endif // ANDROID_MEDIAPLAYERSERVICE_H 456
