MediaPlayerService.h revision 1ab85ec401801ef9a9184650d0f5a1639b45eeb9
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); 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 void 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; } 115 116 private: 117 static void setMinBufferCount(); 118 static void CallbackWrapper( 119 int event, void *me, void *info); 120 121 sp<AudioTrack> mTrack; 122 sp<AudioTrack> mRecycledTrack; 123 sp<AudioOutput> mNextOutput; 124 AudioCallback mCallback; 125 void * mCallbackCookie; 126 CallbackData * mCallbackData; 127 uint64_t mBytesWritten; 128 audio_stream_type_t mStreamType; 129 float mLeftVolume; 130 float mRightVolume; 131 int32_t mPlaybackRatePermille; 132 uint32_t mSampleRateHz; // sample rate of the content, as set in open() 133 float mMsecsPerFrame; 134 int mSessionId; 135 float mSendLevel; 136 int mAuxEffectId; 137 static bool mIsOnEmulator; 138 static int mMinBufferCount; // 12 for emulator; otherwise 4 139 audio_output_flags_t mFlags; 140 141 // CallbackData is what is passed to the AudioTrack as the "user" data. 142 // We need to be able to target this to a different Output on the fly, 143 // so we can't use the Output itself for this. 144 class CallbackData { 145 public: 146 CallbackData(AudioOutput *cookie) { 147 mData = cookie; 148 mSwitching = false; 149 } 150 AudioOutput * getOutput() { return mData;} 151 void setOutput(AudioOutput* newcookie) { mData = newcookie; } 152 // lock/unlock are used by the callback before accessing the payload of this object 153 void lock() { mLock.lock(); } 154 void unlock() { mLock.unlock(); } 155 // beginTrackSwitch/endTrackSwitch are used when this object is being handed over 156 // to the next sink. 157 void beginTrackSwitch() { mLock.lock(); mSwitching = true; } 158 void endTrackSwitch() { 159 if (mSwitching) { 160 mLock.unlock(); 161 } 162 mSwitching = false; 163 } 164 private: 165 AudioOutput * mData; 166 mutable Mutex mLock; 167 bool mSwitching; 168 DISALLOW_EVIL_CONSTRUCTORS(CallbackData); 169 }; 170 171 }; // AudioOutput 172 173 174 class AudioCache : public MediaPlayerBase::AudioSink 175 { 176 public: 177 AudioCache(const char* name); 178 virtual ~AudioCache() {} 179 180 virtual bool ready() const { return (mChannelCount > 0) && (mHeap->getHeapID() > 0); } 181 virtual bool realtime() const { return false; } 182 virtual ssize_t bufferSize() const { return frameSize() * mFrameCount; } 183 virtual ssize_t frameCount() const { return mFrameCount; } 184 virtual ssize_t channelCount() const { return (ssize_t)mChannelCount; } 185 virtual ssize_t frameSize() const { return ssize_t(mChannelCount * ((mFormat == AUDIO_FORMAT_PCM_16_BIT)?sizeof(int16_t):sizeof(u_int8_t))); } 186 virtual uint32_t latency() const; 187 virtual float msecsPerFrame() const; 188 virtual status_t getPosition(uint32_t *position) const; 189 virtual status_t getFramesWritten(uint32_t *frameswritten) const; 190 virtual int getSessionId() const; 191 192 virtual status_t open( 193 uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask, 194 audio_format_t format, int bufferCount = 1, 195 AudioCallback cb = NULL, void *cookie = NULL, 196 audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE, 197 const audio_offload_info_t *offloadInfo = NULL); 198 199 virtual void start(); 200 virtual ssize_t write(const void* buffer, size_t size); 201 virtual void stop(); 202 virtual void flush() {} 203 virtual void pause() {} 204 virtual void close() {} 205 void setAudioStreamType(audio_stream_type_t streamType) {} 206 void setVolume(float left, float right) {} 207 virtual status_t setPlaybackRatePermille(int32_t ratePermille) { return INVALID_OPERATION; } 208 uint32_t sampleRate() const { return mSampleRate; } 209 audio_format_t format() const { return mFormat; } 210 size_t size() const { return mSize; } 211 status_t wait(); 212 213 sp<IMemoryHeap> getHeap() const { return mHeap; } 214 215 static void notify(void* cookie, int msg, 216 int ext1, int ext2, const Parcel *obj); 217 virtual status_t dump(int fd, const Vector<String16>& args) const; 218 219 private: 220 AudioCache(); 221 222 Mutex mLock; 223 Condition mSignal; 224 sp<MemoryHeapBase> mHeap; 225 float mMsecsPerFrame; 226 uint16_t mChannelCount; 227 audio_format_t mFormat; 228 ssize_t mFrameCount; 229 uint32_t mSampleRate; 230 uint32_t mSize; 231 int mError; 232 bool mCommandComplete; 233 234 sp<Thread> mCallbackThread; 235 }; // AudioCache 236 237public: 238 static void instantiate(); 239 240 // IMediaPlayerService interface 241 virtual sp<IMediaRecorder> createMediaRecorder(); 242 void removeMediaRecorderClient(wp<MediaRecorderClient> client); 243 virtual sp<IMediaMetadataRetriever> createMetadataRetriever(); 244 245 virtual sp<IMediaPlayer> create(const sp<IMediaPlayerClient>& client, int audioSessionId); 246 247 virtual sp<IMemory> decode(const char* url, uint32_t *pSampleRate, int* pNumChannels, audio_format_t* pFormat); 248 virtual sp<IMemory> decode(int fd, int64_t offset, int64_t length, uint32_t *pSampleRate, int* pNumChannels, audio_format_t* pFormat); 249 virtual sp<IOMX> getOMX(); 250 virtual sp<ICrypto> makeCrypto(); 251 virtual sp<IDrm> makeDrm(); 252 virtual sp<IHDCP> makeHDCP(bool createEncryptionModule); 253 254 virtual sp<IRemoteDisplay> listenForRemoteDisplay(const sp<IRemoteDisplayClient>& client, 255 const String8& iface); 256 virtual status_t dump(int fd, const Vector<String16>& args); 257 258 virtual status_t updateProxyConfig( 259 const char *host, int32_t port, const char *exclusionList); 260 261 void removeClient(wp<Client> client); 262 263 // For battery usage tracking purpose 264 struct BatteryUsageInfo { 265 // how many streams are being played by one UID 266 int refCount; 267 // a temp variable to store the duration(ms) of audio codecs 268 // when we start a audio codec, we minus the system time from audioLastTime 269 // when we pause it, we add the system time back to the audioLastTime 270 // so after the pause, audioLastTime = pause time - start time 271 // if multiple audio streams are played (or recorded), then audioLastTime 272 // = the total playing time of all the streams 273 int32_t audioLastTime; 274 // when all the audio streams are being paused, we assign audioLastTime to 275 // this variable, so this value could be provided to the battery app 276 // in the next pullBatteryData call 277 int32_t audioTotalTime; 278 279 int32_t videoLastTime; 280 int32_t videoTotalTime; 281 }; 282 KeyedVector<int, BatteryUsageInfo> mBatteryData; 283 284 enum { 285 SPEAKER, 286 OTHER_AUDIO_DEVICE, 287 SPEAKER_AND_OTHER, 288 NUM_AUDIO_DEVICES 289 }; 290 291 struct BatteryAudioFlingerUsageInfo { 292 int refCount; // how many audio streams are being played 293 int deviceOn[NUM_AUDIO_DEVICES]; // whether the device is currently used 294 int32_t lastTime[NUM_AUDIO_DEVICES]; // in ms 295 // totalTime[]: total time of audio output devices usage 296 int32_t totalTime[NUM_AUDIO_DEVICES]; // in ms 297 }; 298 299 // This varialble is used to record the usage of audio output device 300 // for battery app 301 BatteryAudioFlingerUsageInfo mBatteryAudio; 302 303 // Collect info of the codec usage from media player and media recorder 304 virtual void addBatteryData(uint32_t params); 305 // API for the Battery app to pull the data of codecs usage 306 virtual status_t pullBatteryData(Parcel* reply); 307private: 308 309 class Client : public BnMediaPlayer { 310 // IMediaPlayer interface 311 virtual void disconnect(); 312 virtual status_t setVideoSurfaceTexture( 313 const sp<IGraphicBufferProducer>& bufferProducer); 314 virtual status_t prepareAsync(); 315 virtual status_t start(); 316 virtual status_t stop(); 317 virtual status_t pause(); 318 virtual status_t isPlaying(bool* state); 319 virtual status_t seekTo(int msec); 320 virtual status_t getCurrentPosition(int* msec); 321 virtual status_t getDuration(int* msec); 322 virtual status_t reset(); 323 virtual status_t setAudioStreamType(audio_stream_type_t type); 324 virtual status_t setLooping(int loop); 325 virtual status_t setVolume(float leftVolume, float rightVolume); 326 virtual status_t invoke(const Parcel& request, Parcel *reply); 327 virtual status_t setMetadataFilter(const Parcel& filter); 328 virtual status_t getMetadata(bool update_only, 329 bool apply_filter, 330 Parcel *reply); 331 virtual status_t setAuxEffectSendLevel(float level); 332 virtual status_t attachAuxEffect(int effectId); 333 virtual status_t setParameter(int key, const Parcel &request); 334 virtual status_t getParameter(int key, Parcel *reply); 335 virtual status_t setRetransmitEndpoint(const struct sockaddr_in* endpoint); 336 virtual status_t getRetransmitEndpoint(struct sockaddr_in* endpoint); 337 virtual status_t setNextPlayer(const sp<IMediaPlayer>& player); 338 339 sp<MediaPlayerBase> createPlayer(player_type playerType); 340 341 virtual status_t setDataSource( 342 const char *url, 343 const KeyedVector<String8, String8> *headers); 344 345 virtual status_t setDataSource(int fd, int64_t offset, int64_t length); 346 347 virtual status_t setDataSource(const sp<IStreamSource> &source); 348 349 sp<MediaPlayerBase> setDataSource_pre(player_type playerType); 350 void setDataSource_post(const sp<MediaPlayerBase>& p, 351 status_t status); 352 353 static void notify(void* cookie, int msg, 354 int ext1, int ext2, const Parcel *obj); 355 356 pid_t pid() const { return mPid; } 357 virtual status_t dump(int fd, const Vector<String16>& args) const; 358 359 int getAudioSessionId() { return mAudioSessionId; } 360 361 private: 362 friend class MediaPlayerService; 363 Client( const sp<MediaPlayerService>& service, 364 pid_t pid, 365 int32_t connId, 366 const sp<IMediaPlayerClient>& client, 367 int audioSessionId, 368 uid_t uid); 369 Client(); 370 virtual ~Client(); 371 372 void deletePlayer(); 373 374 sp<MediaPlayerBase> getPlayer() const { Mutex::Autolock lock(mLock); return mPlayer; } 375 376 377 378 // @param type Of the metadata to be tested. 379 // @return true if the metadata should be dropped according to 380 // the filters. 381 bool shouldDropMetadata(media::Metadata::Type type) const; 382 383 // Add a new element to the set of metadata updated. Noop if 384 // the element exists already. 385 // @param type Of the metadata to be recorded. 386 void addNewMetadataUpdate(media::Metadata::Type type); 387 388 // Disconnect from the currently connected ANativeWindow. 389 void disconnectNativeWindow(); 390 391 mutable Mutex mLock; 392 sp<MediaPlayerBase> mPlayer; 393 sp<MediaPlayerService> mService; 394 sp<IMediaPlayerClient> mClient; 395 sp<AudioOutput> mAudioOutput; 396 pid_t mPid; 397 status_t mStatus; 398 bool mLoop; 399 int32_t mConnId; 400 int mAudioSessionId; 401 uid_t mUID; 402 sp<ANativeWindow> mConnectedWindow; 403 sp<IBinder> mConnectedWindowBinder; 404 struct sockaddr_in mRetransmitEndpoint; 405 bool mRetransmitEndpointValid; 406 sp<Client> mNextClient; 407 408 // Metadata filters. 409 media::Metadata::Filter mMetadataAllow; // protected by mLock 410 media::Metadata::Filter mMetadataDrop; // protected by mLock 411 412 // Metadata updated. For each MEDIA_INFO_METADATA_UPDATE 413 // notification we try to update mMetadataUpdated which is a 414 // set: no duplicate. 415 // getMetadata clears this set. 416 media::Metadata::Filter mMetadataUpdated; // protected by mLock 417 418#if CALLBACK_ANTAGONIZER 419 Antagonizer* mAntagonizer; 420#endif 421 }; // Client 422 423// ---------------------------------------------------------------------------- 424 425 MediaPlayerService(); 426 virtual ~MediaPlayerService(); 427 428 mutable Mutex mLock; 429 SortedVector< wp<Client> > mClients; 430 SortedVector< wp<MediaRecorderClient> > mMediaRecorderClients; 431 int32_t mNextConnId; 432 sp<IOMX> mOMX; 433 sp<ICrypto> mCrypto; 434}; 435 436// ---------------------------------------------------------------------------- 437 438}; // namespace android 439 440#endif // ANDROID_MEDIAPLAYERSERVICE_H 441