MediaPlayerService.h revision 9cae217050aa1347d4ac5053c305754879e3f97f
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 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) { mStreamType = streamType; } 104 void setVolume(float left, float right); 105 virtual status_t setPlaybackRatePermille(int32_t ratePermille); 106 status_t setAuxEffectSendLevel(float level); 107 status_t attachAuxEffect(int effectId); 108 virtual status_t dump(int fd, const Vector<String16>& args) const; 109 110 static bool isOnEmulator(); 111 static int getMinBufferCount(); 112 void setNextOutput(const sp<AudioOutput>& nextOutput); 113 void switchToNextOutput(); 114 virtual bool needsTrailingPadding() { return mNextOutput == NULL; } 115 virtual status_t setParameters(const String8& keyValuePairs); 116 virtual String8 getParameters(const String8& keys); 117 118 private: 119 static void setMinBufferCount(); 120 static void CallbackWrapper( 121 int event, void *me, void *info); 122 void deleteRecycledTrack(); 123 124 sp<AudioTrack> mTrack; 125 sp<AudioTrack> mRecycledTrack; 126 sp<AudioOutput> mNextOutput; 127 AudioCallback mCallback; 128 void * mCallbackCookie; 129 CallbackData * mCallbackData; 130 uint64_t mBytesWritten; 131 audio_stream_type_t mStreamType; 132 float mLeftVolume; 133 float mRightVolume; 134 int32_t mPlaybackRatePermille; 135 uint32_t mSampleRateHz; // sample rate of the content, as set in open() 136 float mMsecsPerFrame; 137 int mSessionId; 138 int mUid; 139 float mSendLevel; 140 int mAuxEffectId; 141 static bool mIsOnEmulator; 142 static int mMinBufferCount; // 12 for emulator; otherwise 4 143 audio_output_flags_t mFlags; 144 145 // CallbackData is what is passed to the AudioTrack as the "user" data. 146 // We need to be able to target this to a different Output on the fly, 147 // so we can't use the Output itself for this. 148 class CallbackData { 149 public: 150 CallbackData(AudioOutput *cookie) { 151 mData = cookie; 152 mSwitching = false; 153 } 154 AudioOutput * getOutput() { return mData;} 155 void setOutput(AudioOutput* newcookie) { mData = newcookie; } 156 // lock/unlock are used by the callback before accessing the payload of this object 157 void lock() { mLock.lock(); } 158 void unlock() { mLock.unlock(); } 159 // beginTrackSwitch/endTrackSwitch are used when this object is being handed over 160 // to the next sink. 161 void beginTrackSwitch() { mLock.lock(); mSwitching = true; } 162 void endTrackSwitch() { 163 if (mSwitching) { 164 mLock.unlock(); 165 } 166 mSwitching = false; 167 } 168 private: 169 AudioOutput * mData; 170 mutable Mutex mLock; 171 bool mSwitching; 172 DISALLOW_EVIL_CONSTRUCTORS(CallbackData); 173 }; 174 175 }; // AudioOutput 176 177 178 class AudioCache : public MediaPlayerBase::AudioSink 179 { 180 public: 181 AudioCache(const sp<IMemoryHeap>& heap); 182 virtual ~AudioCache() {} 183 184 virtual bool ready() const { return (mChannelCount > 0) && (mHeap->getHeapID() > 0); } 185 virtual bool realtime() const { return false; } 186 virtual ssize_t bufferSize() const { return frameSize() * mFrameCount; } 187 virtual ssize_t frameCount() const { return mFrameCount; } 188 virtual ssize_t channelCount() const { return (ssize_t)mChannelCount; } 189 virtual ssize_t frameSize() const { return ssize_t(mChannelCount * ((mFormat == AUDIO_FORMAT_PCM_16_BIT)?sizeof(int16_t):sizeof(u_int8_t))); } 190 virtual uint32_t latency() const; 191 virtual float msecsPerFrame() const; 192 virtual status_t getPosition(uint32_t *position) const; 193 virtual status_t getFramesWritten(uint32_t *frameswritten) const; 194 virtual int getSessionId() const; 195 196 virtual status_t open( 197 uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask, 198 audio_format_t format, int bufferCount = 1, 199 AudioCallback cb = NULL, void *cookie = NULL, 200 audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE, 201 const audio_offload_info_t *offloadInfo = NULL); 202 203 virtual status_t start(); 204 virtual ssize_t write(const void* buffer, size_t size); 205 virtual void stop(); 206 virtual void flush() {} 207 virtual void pause() {} 208 virtual void close() {} 209 void setAudioStreamType(audio_stream_type_t streamType) {} 210 void setVolume(float left, float right) {} 211 virtual status_t setPlaybackRatePermille(int32_t ratePermille) { return INVALID_OPERATION; } 212 uint32_t sampleRate() const { return mSampleRate; } 213 audio_format_t format() const { return mFormat; } 214 size_t size() const { return mSize; } 215 status_t wait(); 216 217 sp<IMemoryHeap> getHeap() const { return mHeap; } 218 219 static void notify(void* cookie, int msg, 220 int ext1, int ext2, const Parcel *obj); 221 virtual status_t dump(int fd, const Vector<String16>& args) const; 222 223 private: 224 AudioCache(); 225 226 Mutex mLock; 227 Condition mSignal; 228 sp<IMemoryHeap> mHeap; 229 float mMsecsPerFrame; 230 uint16_t mChannelCount; 231 audio_format_t mFormat; 232 ssize_t mFrameCount; 233 uint32_t mSampleRate; 234 uint32_t mSize; 235 int mError; 236 bool mCommandComplete; 237 238 sp<Thread> mCallbackThread; 239 }; // AudioCache 240 241public: 242 static void instantiate(); 243 244 // IMediaPlayerService interface 245 virtual sp<IMediaRecorder> createMediaRecorder(); 246 void removeMediaRecorderClient(wp<MediaRecorderClient> client); 247 virtual sp<IMediaMetadataRetriever> createMetadataRetriever(); 248 249 virtual sp<IMediaPlayer> create(const sp<IMediaPlayerClient>& client, int audioSessionId); 250 251 virtual status_t decode(const char* url, uint32_t *pSampleRate, int* pNumChannels, 252 audio_format_t* pFormat, 253 const sp<IMemoryHeap>& heap, size_t *pSize); 254 virtual status_t decode(int fd, int64_t offset, int64_t length, 255 uint32_t *pSampleRate, int* pNumChannels, 256 audio_format_t* pFormat, 257 const sp<IMemoryHeap>& heap, size_t *pSize); 258 virtual sp<IOMX> getOMX(); 259 virtual sp<ICrypto> makeCrypto(); 260 virtual sp<IDrm> makeDrm(); 261 virtual sp<IHDCP> makeHDCP(bool createEncryptionModule); 262 263 virtual sp<IRemoteDisplay> listenForRemoteDisplay(const sp<IRemoteDisplayClient>& client, 264 const String8& iface); 265 virtual status_t dump(int fd, const Vector<String16>& args); 266 267 virtual status_t updateProxyConfig( 268 const char *host, int32_t port, const char *exclusionList); 269 270 void removeClient(wp<Client> client); 271 272 // For battery usage tracking purpose 273 struct BatteryUsageInfo { 274 // how many streams are being played by one UID 275 int refCount; 276 // a temp variable to store the duration(ms) of audio codecs 277 // when we start a audio codec, we minus the system time from audioLastTime 278 // when we pause it, we add the system time back to the audioLastTime 279 // so after the pause, audioLastTime = pause time - start time 280 // if multiple audio streams are played (or recorded), then audioLastTime 281 // = the total playing time of all the streams 282 int32_t audioLastTime; 283 // when all the audio streams are being paused, we assign audioLastTime to 284 // this variable, so this value could be provided to the battery app 285 // in the next pullBatteryData call 286 int32_t audioTotalTime; 287 288 int32_t videoLastTime; 289 int32_t videoTotalTime; 290 }; 291 KeyedVector<int, BatteryUsageInfo> mBatteryData; 292 293 enum { 294 SPEAKER, 295 OTHER_AUDIO_DEVICE, 296 SPEAKER_AND_OTHER, 297 NUM_AUDIO_DEVICES 298 }; 299 300 struct BatteryAudioFlingerUsageInfo { 301 int refCount; // how many audio streams are being played 302 int deviceOn[NUM_AUDIO_DEVICES]; // whether the device is currently used 303 int32_t lastTime[NUM_AUDIO_DEVICES]; // in ms 304 // totalTime[]: total time of audio output devices usage 305 int32_t totalTime[NUM_AUDIO_DEVICES]; // in ms 306 }; 307 308 // This varialble is used to record the usage of audio output device 309 // for battery app 310 BatteryAudioFlingerUsageInfo mBatteryAudio; 311 312 // Collect info of the codec usage from media player and media recorder 313 virtual void addBatteryData(uint32_t params); 314 // API for the Battery app to pull the data of codecs usage 315 virtual status_t pullBatteryData(Parcel* reply); 316private: 317 318 class Client : public BnMediaPlayer { 319 // IMediaPlayer interface 320 virtual void disconnect(); 321 virtual status_t setVideoSurfaceTexture( 322 const sp<IGraphicBufferProducer>& bufferProducer); 323 virtual status_t prepareAsync(); 324 virtual status_t start(); 325 virtual status_t stop(); 326 virtual status_t pause(); 327 virtual status_t isPlaying(bool* state); 328 virtual status_t seekTo(int msec); 329 virtual status_t getCurrentPosition(int* msec); 330 virtual status_t getDuration(int* msec); 331 virtual status_t reset(); 332 virtual status_t setAudioStreamType(audio_stream_type_t type); 333 virtual status_t setLooping(int loop); 334 virtual status_t setVolume(float leftVolume, float rightVolume); 335 virtual status_t invoke(const Parcel& request, Parcel *reply); 336 virtual status_t setMetadataFilter(const Parcel& filter); 337 virtual status_t getMetadata(bool update_only, 338 bool apply_filter, 339 Parcel *reply); 340 virtual status_t setAuxEffectSendLevel(float level); 341 virtual status_t attachAuxEffect(int effectId); 342 virtual status_t setParameter(int key, const Parcel &request); 343 virtual status_t getParameter(int key, Parcel *reply); 344 virtual status_t setRetransmitEndpoint(const struct sockaddr_in* endpoint); 345 virtual status_t getRetransmitEndpoint(struct sockaddr_in* endpoint); 346 virtual status_t setNextPlayer(const sp<IMediaPlayer>& player); 347 348 sp<MediaPlayerBase> createPlayer(player_type playerType); 349 350 virtual status_t setDataSource( 351 const char *url, 352 const KeyedVector<String8, String8> *headers); 353 354 virtual status_t setDataSource(int fd, int64_t offset, int64_t length); 355 356 virtual status_t setDataSource(const sp<IStreamSource> &source); 357 358 sp<MediaPlayerBase> setDataSource_pre(player_type playerType); 359 void setDataSource_post(const sp<MediaPlayerBase>& p, 360 status_t status); 361 362 static void notify(void* cookie, int msg, 363 int ext1, int ext2, const Parcel *obj); 364 365 pid_t pid() const { return mPid; } 366 virtual status_t dump(int fd, const Vector<String16>& args) const; 367 368 int getAudioSessionId() { return mAudioSessionId; } 369 370 private: 371 friend class MediaPlayerService; 372 Client( const sp<MediaPlayerService>& service, 373 pid_t pid, 374 int32_t connId, 375 const sp<IMediaPlayerClient>& client, 376 int audioSessionId, 377 uid_t uid); 378 Client(); 379 virtual ~Client(); 380 381 void deletePlayer(); 382 383 sp<MediaPlayerBase> getPlayer() const { Mutex::Autolock lock(mLock); return mPlayer; } 384 385 386 387 // @param type Of the metadata to be tested. 388 // @return true if the metadata should be dropped according to 389 // the filters. 390 bool shouldDropMetadata(media::Metadata::Type type) const; 391 392 // Add a new element to the set of metadata updated. Noop if 393 // the element exists already. 394 // @param type Of the metadata to be recorded. 395 void addNewMetadataUpdate(media::Metadata::Type type); 396 397 // Disconnect from the currently connected ANativeWindow. 398 void disconnectNativeWindow(); 399 400 mutable Mutex mLock; 401 sp<MediaPlayerBase> mPlayer; 402 sp<MediaPlayerService> mService; 403 sp<IMediaPlayerClient> mClient; 404 sp<AudioOutput> mAudioOutput; 405 pid_t mPid; 406 status_t mStatus; 407 bool mLoop; 408 int32_t mConnId; 409 int mAudioSessionId; 410 uid_t mUID; 411 sp<ANativeWindow> mConnectedWindow; 412 sp<IBinder> mConnectedWindowBinder; 413 struct sockaddr_in mRetransmitEndpoint; 414 bool mRetransmitEndpointValid; 415 sp<Client> mNextClient; 416 417 // Metadata filters. 418 media::Metadata::Filter mMetadataAllow; // protected by mLock 419 media::Metadata::Filter mMetadataDrop; // protected by mLock 420 421 // Metadata updated. For each MEDIA_INFO_METADATA_UPDATE 422 // notification we try to update mMetadataUpdated which is a 423 // set: no duplicate. 424 // getMetadata clears this set. 425 media::Metadata::Filter mMetadataUpdated; // protected by mLock 426 427#if CALLBACK_ANTAGONIZER 428 Antagonizer* mAntagonizer; 429#endif 430 }; // Client 431 432// ---------------------------------------------------------------------------- 433 434 MediaPlayerService(); 435 virtual ~MediaPlayerService(); 436 437 mutable Mutex mLock; 438 SortedVector< wp<Client> > mClients; 439 SortedVector< wp<MediaRecorderClient> > mMediaRecorderClients; 440 int32_t mNextConnId; 441 sp<IOMX> mOMX; 442 sp<ICrypto> mCrypto; 443}; 444 445// ---------------------------------------------------------------------------- 446 447}; // namespace android 448 449#endif // ANDROID_MEDIAPLAYERSERVICE_H 450