MediaPlayerService.h revision 80520381d0bdf3451bd17c9ddef73d3fe71c58c2
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); 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 virtual uint32_t getSampleRate() const; 90 91 virtual status_t open( 92 uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask, 93 audio_format_t format, int bufferCount, 94 AudioCallback cb, void *cookie, 95 audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE, 96 const audio_offload_info_t *offloadInfo = NULL); 97 98 virtual status_t start(); 99 virtual ssize_t write(const void* buffer, size_t size); 100 virtual void stop(); 101 virtual void flush(); 102 virtual void pause(); 103 virtual void close(); 104 void setAudioStreamType(audio_stream_type_t streamType) { 105 mStreamType = streamType; } 106 virtual audio_stream_type_t getAudioStreamType() const { return mStreamType; } 107 108 void setVolume(float left, float right); 109 virtual status_t setPlaybackRatePermille(int32_t ratePermille); 110 status_t setAuxEffectSendLevel(float level); 111 status_t attachAuxEffect(int effectId); 112 virtual status_t dump(int fd, const Vector<String16>& args) const; 113 114 static bool isOnEmulator(); 115 static int getMinBufferCount(); 116 void setNextOutput(const sp<AudioOutput>& nextOutput); 117 void switchToNextOutput(); 118 virtual bool needsTrailingPadding() { return mNextOutput == NULL; } 119 virtual status_t setParameters(const String8& keyValuePairs); 120 virtual String8 getParameters(const String8& keys); 121 122 private: 123 static void setMinBufferCount(); 124 static void CallbackWrapper( 125 int event, void *me, void *info); 126 void deleteRecycledTrack(); 127 128 sp<AudioTrack> mTrack; 129 sp<AudioTrack> mRecycledTrack; 130 sp<AudioOutput> mNextOutput; 131 AudioCallback mCallback; 132 void * mCallbackCookie; 133 CallbackData * mCallbackData; 134 uint64_t mBytesWritten; 135 audio_stream_type_t mStreamType; 136 float mLeftVolume; 137 float mRightVolume; 138 int32_t mPlaybackRatePermille; 139 uint32_t mSampleRateHz; // sample rate of the content, as set in open() 140 float mMsecsPerFrame; 141 int mSessionId; 142 int mUid; 143 float mSendLevel; 144 int mAuxEffectId; 145 static bool mIsOnEmulator; 146 static int mMinBufferCount; // 12 for emulator; otherwise 4 147 audio_output_flags_t mFlags; 148 149 // CallbackData is what is passed to the AudioTrack as the "user" data. 150 // We need to be able to target this to a different Output on the fly, 151 // so we can't use the Output itself for this. 152 class CallbackData { 153 public: 154 CallbackData(AudioOutput *cookie) { 155 mData = cookie; 156 mSwitching = false; 157 } 158 AudioOutput * getOutput() { return mData;} 159 void setOutput(AudioOutput* newcookie) { mData = newcookie; } 160 // lock/unlock are used by the callback before accessing the payload of this object 161 void lock() { mLock.lock(); } 162 void unlock() { mLock.unlock(); } 163 // beginTrackSwitch/endTrackSwitch are used when this object is being handed over 164 // to the next sink. 165 void beginTrackSwitch() { mLock.lock(); mSwitching = true; } 166 void endTrackSwitch() { 167 if (mSwitching) { 168 mLock.unlock(); 169 } 170 mSwitching = false; 171 } 172 private: 173 AudioOutput * mData; 174 mutable Mutex mLock; 175 bool mSwitching; 176 DISALLOW_EVIL_CONSTRUCTORS(CallbackData); 177 }; 178 179 }; // AudioOutput 180 181 182 class AudioCache : public MediaPlayerBase::AudioSink 183 { 184 public: 185 AudioCache(const sp<IMemoryHeap>& heap); 186 virtual ~AudioCache() {} 187 188 virtual bool ready() const { return (mChannelCount > 0) && (mHeap->getHeapID() > 0); } 189 virtual bool realtime() const { return false; } 190 virtual ssize_t bufferSize() const { return frameSize() * mFrameCount; } 191 virtual ssize_t frameCount() const { return mFrameCount; } 192 virtual ssize_t channelCount() const { return (ssize_t)mChannelCount; } 193 virtual ssize_t frameSize() const { return ssize_t(mChannelCount * ((mFormat == AUDIO_FORMAT_PCM_16_BIT)?sizeof(int16_t):sizeof(u_int8_t))); } 194 virtual uint32_t latency() const; 195 virtual float msecsPerFrame() const; 196 virtual status_t getPosition(uint32_t *position) const; 197 virtual status_t getFramesWritten(uint32_t *frameswritten) const; 198 virtual int getSessionId() const; 199 virtual uint32_t getSampleRate() const; 200 201 virtual status_t open( 202 uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask, 203 audio_format_t format, int bufferCount = 1, 204 AudioCallback cb = NULL, void *cookie = NULL, 205 audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE, 206 const audio_offload_info_t *offloadInfo = NULL); 207 208 virtual status_t start(); 209 virtual ssize_t write(const void* buffer, size_t size); 210 virtual void stop(); 211 virtual void flush() {} 212 virtual void pause() {} 213 virtual void close() {} 214 void setAudioStreamType(audio_stream_type_t streamType __unused) {} 215 // stream type is not used for AudioCache 216 virtual audio_stream_type_t getAudioStreamType() const { return AUDIO_STREAM_DEFAULT; } 217 218 void setVolume(float left __unused, float right __unused) {} 219 virtual status_t setPlaybackRatePermille(int32_t ratePermille __unused) { return INVALID_OPERATION; } 220 uint32_t sampleRate() const { return mSampleRate; } 221 audio_format_t format() const { return mFormat; } 222 size_t size() const { return mSize; } 223 status_t wait(); 224 225 sp<IMemoryHeap> getHeap() const { return mHeap; } 226 227 static void notify(void* cookie, int msg, 228 int ext1, int ext2, const Parcel *obj); 229 virtual status_t dump(int fd, const Vector<String16>& args) const; 230 231 private: 232 AudioCache(); 233 234 Mutex mLock; 235 Condition mSignal; 236 sp<IMemoryHeap> mHeap; 237 float mMsecsPerFrame; 238 uint16_t mChannelCount; 239 audio_format_t mFormat; 240 ssize_t mFrameCount; 241 uint32_t mSampleRate; 242 uint32_t mSize; 243 int mError; 244 bool mCommandComplete; 245 246 sp<Thread> mCallbackThread; 247 }; // AudioCache 248 249public: 250 static void instantiate(); 251 252 // IMediaPlayerService interface 253 virtual sp<IMediaRecorder> createMediaRecorder(); 254 void removeMediaRecorderClient(wp<MediaRecorderClient> client); 255 virtual sp<IMediaMetadataRetriever> createMetadataRetriever(); 256 257 virtual sp<IMediaPlayer> create(const sp<IMediaPlayerClient>& client, int audioSessionId); 258 259 virtual status_t decode( 260 const sp<IMediaHTTPService> &httpService, 261 const char* url, 262 uint32_t *pSampleRate, 263 int* pNumChannels, 264 audio_format_t* pFormat, 265 const sp<IMemoryHeap>& heap, 266 size_t *pSize); 267 268 virtual status_t decode(int fd, int64_t offset, int64_t length, 269 uint32_t *pSampleRate, int* pNumChannels, 270 audio_format_t* pFormat, 271 const sp<IMemoryHeap>& heap, size_t *pSize); 272 virtual sp<IOMX> getOMX(); 273 virtual sp<ICrypto> makeCrypto(); 274 virtual sp<IDrm> makeDrm(); 275 virtual sp<IHDCP> makeHDCP(bool createEncryptionModule); 276 277 virtual sp<IRemoteDisplay> listenForRemoteDisplay(const sp<IRemoteDisplayClient>& client, 278 const String8& iface); 279 virtual status_t dump(int fd, const Vector<String16>& args); 280 281 void removeClient(wp<Client> client); 282 283 // For battery usage tracking purpose 284 struct BatteryUsageInfo { 285 // how many streams are being played by one UID 286 int refCount; 287 // a temp variable to store the duration(ms) of audio codecs 288 // when we start a audio codec, we minus the system time from audioLastTime 289 // when we pause it, we add the system time back to the audioLastTime 290 // so after the pause, audioLastTime = pause time - start time 291 // if multiple audio streams are played (or recorded), then audioLastTime 292 // = the total playing time of all the streams 293 int32_t audioLastTime; 294 // when all the audio streams are being paused, we assign audioLastTime to 295 // this variable, so this value could be provided to the battery app 296 // in the next pullBatteryData call 297 int32_t audioTotalTime; 298 299 int32_t videoLastTime; 300 int32_t videoTotalTime; 301 }; 302 KeyedVector<int, BatteryUsageInfo> mBatteryData; 303 304 enum { 305 SPEAKER, 306 OTHER_AUDIO_DEVICE, 307 SPEAKER_AND_OTHER, 308 NUM_AUDIO_DEVICES 309 }; 310 311 struct BatteryAudioFlingerUsageInfo { 312 int refCount; // how many audio streams are being played 313 int deviceOn[NUM_AUDIO_DEVICES]; // whether the device is currently used 314 int32_t lastTime[NUM_AUDIO_DEVICES]; // in ms 315 // totalTime[]: total time of audio output devices usage 316 int32_t totalTime[NUM_AUDIO_DEVICES]; // in ms 317 }; 318 319 // This varialble is used to record the usage of audio output device 320 // for battery app 321 BatteryAudioFlingerUsageInfo mBatteryAudio; 322 323 // Collect info of the codec usage from media player and media recorder 324 virtual void addBatteryData(uint32_t params); 325 // API for the Battery app to pull the data of codecs usage 326 virtual status_t pullBatteryData(Parcel* reply); 327private: 328 329 class Client : public BnMediaPlayer { 330 // IMediaPlayer interface 331 virtual void disconnect(); 332 virtual status_t setVideoSurfaceTexture( 333 const sp<IGraphicBufferProducer>& bufferProducer); 334 virtual status_t prepareAsync(); 335 virtual status_t start(); 336 virtual status_t stop(); 337 virtual status_t pause(); 338 virtual status_t isPlaying(bool* state); 339 virtual status_t seekTo(int msec); 340 virtual status_t getCurrentPosition(int* msec); 341 virtual status_t getDuration(int* msec); 342 virtual status_t reset(); 343 virtual status_t setAudioStreamType(audio_stream_type_t type); 344 virtual status_t setLooping(int loop); 345 virtual status_t setVolume(float leftVolume, float rightVolume); 346 virtual status_t invoke(const Parcel& request, Parcel *reply); 347 virtual status_t setMetadataFilter(const Parcel& filter); 348 virtual status_t getMetadata(bool update_only, 349 bool apply_filter, 350 Parcel *reply); 351 virtual status_t setAuxEffectSendLevel(float level); 352 virtual status_t attachAuxEffect(int effectId); 353 virtual status_t setParameter(int key, const Parcel &request); 354 virtual status_t getParameter(int key, Parcel *reply); 355 virtual status_t setRetransmitEndpoint(const struct sockaddr_in* endpoint); 356 virtual status_t getRetransmitEndpoint(struct sockaddr_in* endpoint); 357 virtual status_t setNextPlayer(const sp<IMediaPlayer>& player); 358 359 sp<MediaPlayerBase> createPlayer(player_type playerType); 360 361 virtual status_t setDataSource( 362 const sp<IMediaHTTPService> &httpService, 363 const char *url, 364 const KeyedVector<String8, String8> *headers); 365 366 virtual status_t setDataSource(int fd, int64_t offset, int64_t length); 367 368 virtual status_t setDataSource(const sp<IStreamSource> &source); 369 370 sp<MediaPlayerBase> setDataSource_pre(player_type playerType); 371 void setDataSource_post(const sp<MediaPlayerBase>& p, 372 status_t status); 373 374 static void notify(void* cookie, int msg, 375 int ext1, int ext2, const Parcel *obj); 376 377 pid_t pid() const { return mPid; } 378 virtual status_t dump(int fd, const Vector<String16>& args) const; 379 380 int getAudioSessionId() { return mAudioSessionId; } 381 382 private: 383 friend class MediaPlayerService; 384 Client( const sp<MediaPlayerService>& service, 385 pid_t pid, 386 int32_t connId, 387 const sp<IMediaPlayerClient>& client, 388 int audioSessionId, 389 uid_t uid); 390 Client(); 391 virtual ~Client(); 392 393 void deletePlayer(); 394 395 sp<MediaPlayerBase> getPlayer() const { Mutex::Autolock lock(mLock); return mPlayer; } 396 397 398 399 // @param type Of the metadata to be tested. 400 // @return true if the metadata should be dropped according to 401 // the filters. 402 bool shouldDropMetadata(media::Metadata::Type type) const; 403 404 // Add a new element to the set of metadata updated. Noop if 405 // the element exists already. 406 // @param type Of the metadata to be recorded. 407 void addNewMetadataUpdate(media::Metadata::Type type); 408 409 // Disconnect from the currently connected ANativeWindow. 410 void disconnectNativeWindow(); 411 412 mutable Mutex mLock; 413 sp<MediaPlayerBase> mPlayer; 414 sp<MediaPlayerService> mService; 415 sp<IMediaPlayerClient> mClient; 416 sp<AudioOutput> mAudioOutput; 417 pid_t mPid; 418 status_t mStatus; 419 bool mLoop; 420 int32_t mConnId; 421 int mAudioSessionId; 422 uid_t mUID; 423 sp<ANativeWindow> mConnectedWindow; 424 sp<IBinder> mConnectedWindowBinder; 425 struct sockaddr_in mRetransmitEndpoint; 426 bool mRetransmitEndpointValid; 427 sp<Client> mNextClient; 428 429 // Metadata filters. 430 media::Metadata::Filter mMetadataAllow; // protected by mLock 431 media::Metadata::Filter mMetadataDrop; // protected by mLock 432 433 // Metadata updated. For each MEDIA_INFO_METADATA_UPDATE 434 // notification we try to update mMetadataUpdated which is a 435 // set: no duplicate. 436 // getMetadata clears this set. 437 media::Metadata::Filter mMetadataUpdated; // protected by mLock 438 439#if CALLBACK_ANTAGONIZER 440 Antagonizer* mAntagonizer; 441#endif 442 }; // Client 443 444// ---------------------------------------------------------------------------- 445 446 MediaPlayerService(); 447 virtual ~MediaPlayerService(); 448 449 mutable Mutex mLock; 450 SortedVector< wp<Client> > mClients; 451 SortedVector< wp<MediaRecorderClient> > mMediaRecorderClients; 452 int32_t mNextConnId; 453 sp<IOMX> mOMX; 454 sp<ICrypto> mCrypto; 455}; 456 457// ---------------------------------------------------------------------------- 458 459}; // namespace android 460 461#endif // ANDROID_MEDIAPLAYERSERVICE_H 462