MediaPlayerService.h revision 1381d4b5c0385aec3741073e5998773b064c1fb0
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 35namespace android { 36 37class AudioTrack; 38class IMediaRecorder; 39class IMediaMetadataRetriever; 40class IOMX; 41class IRemoteDisplay; 42class IRemoteDisplayClient; 43class MediaRecorderClient; 44 45#define CALLBACK_ANTAGONIZER 0 46#if CALLBACK_ANTAGONIZER 47class Antagonizer { 48public: 49 Antagonizer(notify_callback_f cb, void* client); 50 void start() { mActive = true; } 51 void stop() { mActive = false; } 52 void kill(); 53private: 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 66class 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, int pid, 76 const audio_attributes_t * attr); 77 virtual ~AudioOutput(); 78 79 virtual bool ready() const { return mTrack != 0; } 80 virtual bool realtime() const { return true; } 81 virtual ssize_t bufferSize() const; 82 virtual ssize_t frameCount() const; 83 virtual ssize_t channelCount() const; 84 virtual ssize_t frameSize() const; 85 virtual uint32_t latency() const; 86 virtual float msecsPerFrame() const; 87 virtual status_t getPosition(uint32_t *position) const; 88 virtual status_t getFramesWritten(uint32_t *frameswritten) const; 89 virtual int getSessionId() const; 90 virtual uint32_t getSampleRate() const; 91 92 virtual status_t open( 93 uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask, 94 audio_format_t format, int bufferCount, 95 AudioCallback cb, void *cookie, 96 audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE, 97 const audio_offload_info_t *offloadInfo = NULL); 98 99 virtual status_t start(); 100 virtual ssize_t write(const void* buffer, size_t size); 101 virtual void stop(); 102 virtual void flush(); 103 virtual void pause(); 104 virtual void close(); 105 void setAudioStreamType(audio_stream_type_t streamType) { 106 mStreamType = streamType; } 107 virtual audio_stream_type_t getAudioStreamType() const { return mStreamType; } 108 void setAudioAttributes(const audio_attributes_t * attributes); 109 110 void setVolume(float left, float right); 111 virtual status_t setPlaybackRatePermille(int32_t ratePermille); 112 status_t setAuxEffectSendLevel(float level); 113 status_t attachAuxEffect(int effectId); 114 virtual status_t dump(int fd, const Vector<String16>& args) const; 115 116 static bool isOnEmulator(); 117 static int getMinBufferCount(); 118 void setNextOutput(const sp<AudioOutput>& nextOutput); 119 void switchToNextOutput(); 120 virtual bool needsTrailingPadding() { return mNextOutput == NULL; } 121 virtual status_t setParameters(const String8& keyValuePairs); 122 virtual String8 getParameters(const String8& keys); 123 124 private: 125 static void setMinBufferCount(); 126 static void CallbackWrapper( 127 int event, void *me, void *info); 128 void deleteRecycledTrack(); 129 130 sp<AudioTrack> mTrack; 131 sp<AudioTrack> mRecycledTrack; 132 sp<AudioOutput> mNextOutput; 133 AudioCallback mCallback; 134 void * mCallbackCookie; 135 CallbackData * mCallbackData; 136 uint64_t mBytesWritten; 137 audio_stream_type_t mStreamType; 138 const audio_attributes_t *mAttributes; 139 float mLeftVolume; 140 float mRightVolume; 141 int32_t mPlaybackRatePermille; 142 uint32_t mSampleRateHz; // sample rate of the content, as set in open() 143 float mMsecsPerFrame; 144 int mSessionId; 145 int mUid; 146 int mPid; 147 float mSendLevel; 148 int mAuxEffectId; 149 static bool mIsOnEmulator; 150 static int mMinBufferCount; // 12 for emulator; otherwise 4 151 audio_output_flags_t mFlags; 152 153 // CallbackData is what is passed to the AudioTrack as the "user" data. 154 // We need to be able to target this to a different Output on the fly, 155 // so we can't use the Output itself for this. 156 class CallbackData { 157 public: 158 CallbackData(AudioOutput *cookie) { 159 mData = cookie; 160 mSwitching = false; 161 } 162 AudioOutput * getOutput() { return mData;} 163 void setOutput(AudioOutput* newcookie) { mData = newcookie; } 164 // lock/unlock are used by the callback before accessing the payload of this object 165 void lock() { mLock.lock(); } 166 void unlock() { mLock.unlock(); } 167 // beginTrackSwitch/endTrackSwitch are used when this object is being handed over 168 // to the next sink. 169 void beginTrackSwitch() { mLock.lock(); mSwitching = true; } 170 void endTrackSwitch() { 171 if (mSwitching) { 172 mLock.unlock(); 173 } 174 mSwitching = false; 175 } 176 private: 177 AudioOutput * mData; 178 mutable Mutex mLock; 179 bool mSwitching; 180 DISALLOW_EVIL_CONSTRUCTORS(CallbackData); 181 }; 182 183 }; // AudioOutput 184 185 186 class AudioCache : public MediaPlayerBase::AudioSink 187 { 188 public: 189 AudioCache(const sp<IMemoryHeap>& heap); 190 virtual ~AudioCache() {} 191 192 virtual bool ready() const { return (mChannelCount > 0) && (mHeap->getHeapID() > 0); } 193 virtual bool realtime() const { return false; } 194 virtual ssize_t bufferSize() const { return frameSize() * mFrameCount; } 195 virtual ssize_t frameCount() const { return mFrameCount; } 196 virtual ssize_t channelCount() const { return (ssize_t)mChannelCount; } 197 virtual ssize_t frameSize() const { return ssize_t(mChannelCount * ((mFormat == AUDIO_FORMAT_PCM_16_BIT)?sizeof(int16_t):sizeof(u_int8_t))); } 198 virtual uint32_t latency() const; 199 virtual float msecsPerFrame() const; 200 virtual status_t getPosition(uint32_t *position) const; 201 virtual status_t getFramesWritten(uint32_t *frameswritten) const; 202 virtual int getSessionId() const; 203 virtual uint32_t getSampleRate() const; 204 205 virtual status_t open( 206 uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask, 207 audio_format_t format, int bufferCount = 1, 208 AudioCallback cb = NULL, void *cookie = NULL, 209 audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE, 210 const audio_offload_info_t *offloadInfo = NULL); 211 212 virtual status_t start(); 213 virtual ssize_t write(const void* buffer, size_t size); 214 virtual void stop(); 215 virtual void flush() {} 216 virtual void pause() {} 217 virtual void close() {} 218 void setAudioStreamType(audio_stream_type_t streamType __unused) {} 219 // stream type is not used for AudioCache 220 virtual audio_stream_type_t getAudioStreamType() const { return AUDIO_STREAM_DEFAULT; } 221 222 void setVolume(float left __unused, float right __unused) {} 223 virtual status_t setPlaybackRatePermille(int32_t ratePermille __unused) { return INVALID_OPERATION; } 224 uint32_t sampleRate() const { return mSampleRate; } 225 audio_format_t format() const { return mFormat; } 226 size_t size() const { return mSize; } 227 status_t wait(); 228 229 sp<IMemoryHeap> getHeap() const { return mHeap; } 230 231 static void notify(void* cookie, int msg, 232 int ext1, int ext2, const Parcel *obj); 233 virtual status_t dump(int fd, const Vector<String16>& args) const; 234 235 private: 236 AudioCache(); 237 238 Mutex mLock; 239 Condition mSignal; 240 sp<IMemoryHeap> mHeap; 241 float mMsecsPerFrame; 242 uint16_t mChannelCount; 243 audio_format_t mFormat; 244 ssize_t mFrameCount; 245 uint32_t mSampleRate; 246 uint32_t mSize; 247 int mError; 248 bool mCommandComplete; 249 250 sp<Thread> mCallbackThread; 251 }; // AudioCache 252 253public: 254 static void instantiate(); 255 256 // IMediaPlayerService interface 257 virtual sp<IMediaRecorder> createMediaRecorder(); 258 void removeMediaRecorderClient(wp<MediaRecorderClient> client); 259 virtual sp<IMediaMetadataRetriever> createMetadataRetriever(); 260 261 virtual sp<IMediaPlayer> create(const sp<IMediaPlayerClient>& client, int audioSessionId); 262 263 virtual status_t decode( 264 const sp<IMediaHTTPService> &httpService, 265 const char* url, 266 uint32_t *pSampleRate, 267 int* pNumChannels, 268 audio_format_t* pFormat, 269 const sp<IMemoryHeap>& heap, 270 size_t *pSize); 271 272 virtual status_t decode(int fd, int64_t offset, int64_t length, 273 uint32_t *pSampleRate, int* pNumChannels, 274 audio_format_t* pFormat, 275 const sp<IMemoryHeap>& heap, size_t *pSize); 276 virtual sp<IMediaCodecList> getCodecList() const; 277 virtual sp<IOMX> getOMX(); 278 virtual sp<ICrypto> makeCrypto(); 279 virtual sp<IDrm> makeDrm(); 280 virtual sp<IHDCP> makeHDCP(bool createEncryptionModule); 281 282 virtual sp<IRemoteDisplay> listenForRemoteDisplay(const sp<IRemoteDisplayClient>& client, 283 const String8& iface); 284 virtual status_t dump(int fd, const Vector<String16>& args); 285 286 void removeClient(wp<Client> client); 287 288 // For battery usage tracking purpose 289 struct BatteryUsageInfo { 290 // how many streams are being played by one UID 291 int refCount; 292 // a temp variable to store the duration(ms) of audio codecs 293 // when we start a audio codec, we minus the system time from audioLastTime 294 // when we pause it, we add the system time back to the audioLastTime 295 // so after the pause, audioLastTime = pause time - start time 296 // if multiple audio streams are played (or recorded), then audioLastTime 297 // = the total playing time of all the streams 298 int32_t audioLastTime; 299 // when all the audio streams are being paused, we assign audioLastTime to 300 // this variable, so this value could be provided to the battery app 301 // in the next pullBatteryData call 302 int32_t audioTotalTime; 303 304 int32_t videoLastTime; 305 int32_t videoTotalTime; 306 }; 307 KeyedVector<int, BatteryUsageInfo> mBatteryData; 308 309 enum { 310 SPEAKER, 311 OTHER_AUDIO_DEVICE, 312 SPEAKER_AND_OTHER, 313 NUM_AUDIO_DEVICES 314 }; 315 316 struct BatteryAudioFlingerUsageInfo { 317 int refCount; // how many audio streams are being played 318 int deviceOn[NUM_AUDIO_DEVICES]; // whether the device is currently used 319 int32_t lastTime[NUM_AUDIO_DEVICES]; // in ms 320 // totalTime[]: total time of audio output devices usage 321 int32_t totalTime[NUM_AUDIO_DEVICES]; // in ms 322 }; 323 324 // This varialble is used to record the usage of audio output device 325 // for battery app 326 BatteryAudioFlingerUsageInfo mBatteryAudio; 327 328 // Collect info of the codec usage from media player and media recorder 329 virtual void addBatteryData(uint32_t params); 330 // API for the Battery app to pull the data of codecs usage 331 virtual status_t pullBatteryData(Parcel* reply); 332private: 333 334 class Client : public BnMediaPlayer { 335 // IMediaPlayer interface 336 virtual void disconnect(); 337 virtual status_t setVideoSurfaceTexture( 338 const sp<IGraphicBufferProducer>& bufferProducer); 339 virtual status_t prepareAsync(); 340 virtual status_t start(); 341 virtual status_t stop(); 342 virtual status_t pause(); 343 virtual status_t isPlaying(bool* state); 344 virtual status_t seekTo(int msec); 345 virtual status_t getCurrentPosition(int* msec); 346 virtual status_t getDuration(int* msec); 347 virtual status_t reset(); 348 virtual status_t setAudioStreamType(audio_stream_type_t type); 349 virtual status_t setLooping(int loop); 350 virtual status_t setVolume(float leftVolume, float rightVolume); 351 virtual status_t invoke(const Parcel& request, Parcel *reply); 352 virtual status_t setMetadataFilter(const Parcel& filter); 353 virtual status_t getMetadata(bool update_only, 354 bool apply_filter, 355 Parcel *reply); 356 virtual status_t setAuxEffectSendLevel(float level); 357 virtual status_t attachAuxEffect(int effectId); 358 virtual status_t setParameter(int key, const Parcel &request); 359 virtual status_t getParameter(int key, Parcel *reply); 360 virtual status_t setRetransmitEndpoint(const struct sockaddr_in* endpoint); 361 virtual status_t getRetransmitEndpoint(struct sockaddr_in* endpoint); 362 virtual status_t setNextPlayer(const sp<IMediaPlayer>& player); 363 364 sp<MediaPlayerBase> createPlayer(player_type playerType); 365 366 virtual status_t setDataSource( 367 const sp<IMediaHTTPService> &httpService, 368 const char *url, 369 const KeyedVector<String8, String8> *headers); 370 371 virtual status_t setDataSource(int fd, int64_t offset, int64_t length); 372 373 virtual status_t setDataSource(const sp<IStreamSource> &source); 374 375 sp<MediaPlayerBase> setDataSource_pre(player_type playerType); 376 void setDataSource_post(const sp<MediaPlayerBase>& p, 377 status_t status); 378 379 static void notify(void* cookie, int msg, 380 int ext1, int ext2, const Parcel *obj); 381 382 pid_t pid() const { return mPid; } 383 virtual status_t dump(int fd, const Vector<String16>& args) const; 384 385 int getAudioSessionId() { return mAudioSessionId; } 386 387 private: 388 friend class MediaPlayerService; 389 Client( const sp<MediaPlayerService>& service, 390 pid_t pid, 391 int32_t connId, 392 const sp<IMediaPlayerClient>& client, 393 int audioSessionId, 394 uid_t uid); 395 Client(); 396 virtual ~Client(); 397 398 void deletePlayer(); 399 400 sp<MediaPlayerBase> getPlayer() const { Mutex::Autolock lock(mLock); return mPlayer; } 401 402 403 404 // @param type Of the metadata to be tested. 405 // @return true if the metadata should be dropped according to 406 // the filters. 407 bool shouldDropMetadata(media::Metadata::Type type) const; 408 409 // Add a new element to the set of metadata updated. Noop if 410 // the element exists already. 411 // @param type Of the metadata to be recorded. 412 void addNewMetadataUpdate(media::Metadata::Type type); 413 414 // Disconnect from the currently connected ANativeWindow. 415 void disconnectNativeWindow(); 416 417 status_t setAudioAttributes_l(const Parcel &request); 418 419 mutable Mutex mLock; 420 sp<MediaPlayerBase> mPlayer; 421 sp<MediaPlayerService> mService; 422 sp<IMediaPlayerClient> mClient; 423 sp<AudioOutput> mAudioOutput; 424 pid_t mPid; 425 status_t mStatus; 426 bool mLoop; 427 int32_t mConnId; 428 int mAudioSessionId; 429 audio_attributes_t * mAudioAttributes; 430 uid_t mUID; 431 sp<ANativeWindow> mConnectedWindow; 432 sp<IBinder> mConnectedWindowBinder; 433 struct sockaddr_in mRetransmitEndpoint; 434 bool mRetransmitEndpointValid; 435 sp<Client> mNextClient; 436 437 // Metadata filters. 438 media::Metadata::Filter mMetadataAllow; // protected by mLock 439 media::Metadata::Filter mMetadataDrop; // protected by mLock 440 441 // Metadata updated. For each MEDIA_INFO_METADATA_UPDATE 442 // notification we try to update mMetadataUpdated which is a 443 // set: no duplicate. 444 // getMetadata clears this set. 445 media::Metadata::Filter mMetadataUpdated; // protected by mLock 446 447#if CALLBACK_ANTAGONIZER 448 Antagonizer* mAntagonizer; 449#endif 450 }; // Client 451 452// ---------------------------------------------------------------------------- 453 454 MediaPlayerService(); 455 virtual ~MediaPlayerService(); 456 457 mutable Mutex mLock; 458 SortedVector< wp<Client> > mClients; 459 SortedVector< wp<MediaRecorderClient> > mMediaRecorderClients; 460 int32_t mNextConnId; 461 sp<IOMX> mOMX; 462 sp<ICrypto> mCrypto; 463}; 464 465// ---------------------------------------------------------------------------- 466 467}; // namespace android 468 469#endif // ANDROID_MEDIAPLAYERSERVICE_H 470