MediaPlayerService.h revision 4ef88d7106c01f81109ee163cb6789073d80c6ae
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 <android/hardware/media/omx/1.0/IOmx.h> 34 35#include <system/audio.h> 36 37namespace android { 38 39struct AudioPlaybackRate; 40class AudioTrack; 41struct AVSyncSettings; 42class IDataSource; 43class IMediaRecorder; 44class IMediaMetadataRetriever; 45class IOMX; 46class IRemoteDisplay; 47class IRemoteDisplayClient; 48class MediaRecorderClient; 49 50#define CALLBACK_ANTAGONIZER 0 51#if CALLBACK_ANTAGONIZER 52class Antagonizer { 53public: 54 Antagonizer(notify_callback_f cb, void* client); 55 void start() { mActive = true; } 56 void stop() { mActive = false; } 57 void kill(); 58private: 59 static const int interval; 60 Antagonizer(); 61 static int callbackThread(void* cookie); 62 Mutex mLock; 63 Condition mCondition; 64 bool mExit; 65 bool mActive; 66 void* mClient; 67 notify_callback_f mCb; 68}; 69#endif 70 71class MediaPlayerService : public BnMediaPlayerService 72{ 73 class Client; 74 typedef ::android::hardware::media::omx::V1_0::IOmx IOmx; 75 76 class AudioOutput : public MediaPlayerBase::AudioSink 77 { 78 class CallbackData; 79 80 public: 81 AudioOutput(audio_session_t sessionId, uid_t uid, int pid, 82 const audio_attributes_t * attr); 83 virtual ~AudioOutput(); 84 85 virtual bool ready() const { return mTrack != 0; } 86 virtual ssize_t bufferSize() const; 87 virtual ssize_t frameCount() const; 88 virtual ssize_t channelCount() const; 89 virtual ssize_t frameSize() const; 90 virtual uint32_t latency() const; 91 virtual float msecsPerFrame() const; 92 virtual status_t getPosition(uint32_t *position) const; 93 virtual status_t getTimestamp(AudioTimestamp &ts) const; 94 virtual int64_t getPlayedOutDurationUs(int64_t nowUs) const; 95 virtual status_t getFramesWritten(uint32_t *frameswritten) const; 96 virtual audio_session_t getSessionId() const; 97 virtual uint32_t getSampleRate() const; 98 virtual int64_t getBufferDurationInUs() const; 99 100 virtual status_t open( 101 uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask, 102 audio_format_t format, int bufferCount, 103 AudioCallback cb, void *cookie, 104 audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE, 105 const audio_offload_info_t *offloadInfo = NULL, 106 bool doNotReconnect = false, 107 uint32_t suggestedFrameCount = 0); 108 109 virtual status_t start(); 110 virtual ssize_t write(const void* buffer, size_t size, bool blocking = true); 111 virtual void stop(); 112 virtual void flush(); 113 virtual void pause(); 114 virtual void close(); 115 void setAudioStreamType(audio_stream_type_t streamType); 116 virtual audio_stream_type_t getAudioStreamType() const { return mStreamType; } 117 void setAudioAttributes(const audio_attributes_t * attributes); 118 119 void setVolume(float left, float right); 120 virtual status_t setPlaybackRate(const AudioPlaybackRate& rate); 121 virtual status_t getPlaybackRate(AudioPlaybackRate* rate /* nonnull */); 122 123 status_t setAuxEffectSendLevel(float level); 124 status_t attachAuxEffect(int effectId); 125 virtual status_t dump(int fd, const Vector<String16>& args) const; 126 127 static bool isOnEmulator(); 128 static int getMinBufferCount(); 129 void setNextOutput(const sp<AudioOutput>& nextOutput); 130 void switchToNextOutput(); 131 virtual bool needsTrailingPadding() { return mNextOutput == NULL; } 132 virtual status_t setParameters(const String8& keyValuePairs); 133 virtual String8 getParameters(const String8& keys); 134 135 virtual VolumeShaper::Status applyVolumeShaper( 136 const sp<VolumeShaper::Configuration>& configuration, 137 const sp<VolumeShaper::Operation>& operation) override; 138 virtual sp<VolumeShaper::State> getVolumeShaperState(int id) override; 139 140 private: 141 static void setMinBufferCount(); 142 static void CallbackWrapper( 143 int event, void *me, void *info); 144 void deleteRecycledTrack_l(); 145 void close_l(); 146 status_t updateTrack(); 147 148 sp<AudioTrack> mTrack; 149 sp<AudioTrack> mRecycledTrack; 150 sp<AudioOutput> mNextOutput; 151 AudioCallback mCallback; 152 void * mCallbackCookie; 153 CallbackData * mCallbackData; 154 audio_stream_type_t mStreamType; 155 audio_attributes_t * mAttributes; 156 float mLeftVolume; 157 float mRightVolume; 158 AudioPlaybackRate mPlaybackRate; 159 uint32_t mSampleRateHz; // sample rate of the content, as set in open() 160 float mMsecsPerFrame; 161 size_t mFrameSize; 162 audio_session_t mSessionId; 163 uid_t mUid; 164 int mPid; 165 float mSendLevel; 166 int mAuxEffectId; 167 audio_output_flags_t mFlags; 168 sp<VolumeHandler> mVolumeHandler; 169 mutable Mutex mLock; 170 171 // static variables below not protected by mutex 172 static bool mIsOnEmulator; 173 static int mMinBufferCount; // 12 for emulator; otherwise 4 174 175 // CallbackData is what is passed to the AudioTrack as the "user" data. 176 // We need to be able to target this to a different Output on the fly, 177 // so we can't use the Output itself for this. 178 class CallbackData { 179 friend AudioOutput; 180 public: 181 explicit CallbackData(AudioOutput *cookie) { 182 mData = cookie; 183 mSwitching = false; 184 } 185 AudioOutput * getOutput() const { return mData; } 186 void setOutput(AudioOutput* newcookie) { mData = newcookie; } 187 // lock/unlock are used by the callback before accessing the payload of this object 188 void lock() const { mLock.lock(); } 189 void unlock() const { mLock.unlock(); } 190 191 // tryBeginTrackSwitch/endTrackSwitch are used when the CallbackData is handed over 192 // to the next sink. 193 194 // tryBeginTrackSwitch() returns true only if it obtains the lock. 195 bool tryBeginTrackSwitch() { 196 LOG_ALWAYS_FATAL_IF(mSwitching, "tryBeginTrackSwitch() already called"); 197 if (mLock.tryLock() != OK) { 198 return false; 199 } 200 mSwitching = true; 201 return true; 202 } 203 void endTrackSwitch() { 204 if (mSwitching) { 205 mLock.unlock(); 206 } 207 mSwitching = false; 208 } 209 private: 210 AudioOutput * mData; 211 mutable Mutex mLock; // a recursive mutex might make this unnecessary. 212 bool mSwitching; 213 DISALLOW_EVIL_CONSTRUCTORS(CallbackData); 214 }; 215 216 }; // AudioOutput 217 218 219public: 220 static void instantiate(); 221 222 // IMediaPlayerService interface 223 virtual sp<IMediaRecorder> createMediaRecorder(const String16 &opPackageName); 224 void removeMediaRecorderClient(const wp<MediaRecorderClient>& client); 225 virtual sp<IMediaMetadataRetriever> createMetadataRetriever(); 226 227 virtual sp<IMediaPlayer> create(const sp<IMediaPlayerClient>& client, 228 audio_session_t audioSessionId); 229 230 virtual sp<IMediaCodecList> getCodecList() const; 231 virtual sp<IOMX> getOMX(); 232 virtual sp<IHDCP> makeHDCP(bool createEncryptionModule); 233 234 virtual sp<IRemoteDisplay> listenForRemoteDisplay(const String16 &opPackageName, 235 const sp<IRemoteDisplayClient>& client, const String8& iface); 236 virtual status_t dump(int fd, const Vector<String16>& args); 237 238 void removeClient(const wp<Client>& client); 239 bool hasClient(wp<Client> client); 240 241 enum { 242 MEDIASERVER_PROCESS_DEATH = 0, 243 MEDIAEXTRACTOR_PROCESS_DEATH = 1, 244 MEDIACODEC_PROCESS_DEATH = 2, 245 AUDIO_PROCESS_DEATH = 3, // currently no need to track this 246 CAMERA_PROCESS_DEATH = 4 247 }; 248 249 // For battery usage tracking purpose 250 struct BatteryUsageInfo { 251 // how many streams are being played by one UID 252 int refCount; 253 // a temp variable to store the duration(ms) of audio codecs 254 // when we start a audio codec, we minus the system time from audioLastTime 255 // when we pause it, we add the system time back to the audioLastTime 256 // so after the pause, audioLastTime = pause time - start time 257 // if multiple audio streams are played (or recorded), then audioLastTime 258 // = the total playing time of all the streams 259 int32_t audioLastTime; 260 // when all the audio streams are being paused, we assign audioLastTime to 261 // this variable, so this value could be provided to the battery app 262 // in the next pullBatteryData call 263 int32_t audioTotalTime; 264 265 int32_t videoLastTime; 266 int32_t videoTotalTime; 267 }; 268 KeyedVector<int, BatteryUsageInfo> mBatteryData; 269 270 enum { 271 SPEAKER, 272 OTHER_AUDIO_DEVICE, 273 SPEAKER_AND_OTHER, 274 NUM_AUDIO_DEVICES 275 }; 276 277 struct BatteryAudioFlingerUsageInfo { 278 int refCount; // how many audio streams are being played 279 int deviceOn[NUM_AUDIO_DEVICES]; // whether the device is currently used 280 int32_t lastTime[NUM_AUDIO_DEVICES]; // in ms 281 // totalTime[]: total time of audio output devices usage 282 int32_t totalTime[NUM_AUDIO_DEVICES]; // in ms 283 }; 284 285 // This varialble is used to record the usage of audio output device 286 // for battery app 287 BatteryAudioFlingerUsageInfo mBatteryAudio; 288 289 // Collect info of the codec usage from media player and media recorder 290 virtual void addBatteryData(uint32_t params); 291 // API for the Battery app to pull the data of codecs usage 292 virtual status_t pullBatteryData(Parcel* reply); 293private: 294 295 class Client : public BnMediaPlayer { 296 // IMediaPlayer interface 297 virtual void disconnect(); 298 virtual status_t setVideoSurfaceTexture( 299 const sp<IGraphicBufferProducer>& bufferProducer); 300 virtual status_t setBufferingSettings(const BufferingSettings& buffering) override; 301 virtual status_t getDefaultBufferingSettings( 302 BufferingSettings* buffering /* nonnull */) override; 303 virtual status_t prepareAsync(); 304 virtual status_t start(); 305 virtual status_t stop(); 306 virtual status_t pause(); 307 virtual status_t isPlaying(bool* state); 308 virtual status_t setPlaybackSettings(const AudioPlaybackRate& rate); 309 virtual status_t getPlaybackSettings(AudioPlaybackRate* rate /* nonnull */); 310 virtual status_t setSyncSettings(const AVSyncSettings& rate, float videoFpsHint); 311 virtual status_t getSyncSettings(AVSyncSettings* rate /* nonnull */, 312 float* videoFps /* nonnull */); 313 virtual status_t seekTo( 314 int msec, 315 MediaPlayerSeekMode mode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC); 316 virtual status_t getCurrentPosition(int* msec); 317 virtual status_t getDuration(int* msec); 318 virtual status_t reset(); 319 virtual status_t setAudioStreamType(audio_stream_type_t type); 320 virtual status_t setLooping(int loop); 321 virtual status_t setVolume(float leftVolume, float rightVolume); 322 virtual status_t invoke(const Parcel& request, Parcel *reply); 323 virtual status_t setMetadataFilter(const Parcel& filter); 324 virtual status_t getMetadata(bool update_only, 325 bool apply_filter, 326 Parcel *reply); 327 virtual status_t setAuxEffectSendLevel(float level); 328 virtual status_t attachAuxEffect(int effectId); 329 virtual status_t setParameter(int key, const Parcel &request); 330 virtual status_t getParameter(int key, Parcel *reply); 331 virtual status_t setRetransmitEndpoint(const struct sockaddr_in* endpoint); 332 virtual status_t getRetransmitEndpoint(struct sockaddr_in* endpoint); 333 virtual status_t setNextPlayer(const sp<IMediaPlayer>& player); 334 335 virtual VolumeShaper::Status applyVolumeShaper( 336 const sp<VolumeShaper::Configuration>& configuration, 337 const sp<VolumeShaper::Operation>& operation) override; 338 virtual sp<VolumeShaper::State> getVolumeShaperState(int id) override; 339 340 sp<MediaPlayerBase> createPlayer(player_type playerType); 341 342 virtual status_t setDataSource( 343 const sp<IMediaHTTPService> &httpService, 344 const char *url, 345 const KeyedVector<String8, String8> *headers); 346 347 virtual status_t setDataSource(int fd, int64_t offset, int64_t length); 348 349 virtual status_t setDataSource(const sp<IStreamSource> &source); 350 virtual status_t setDataSource(const sp<IDataSource> &source); 351 352 353 sp<MediaPlayerBase> setDataSource_pre(player_type playerType); 354 void setDataSource_post(const sp<MediaPlayerBase>& p, 355 status_t status); 356 357 static void notify(void* cookie, int msg, 358 int ext1, int ext2, const Parcel *obj); 359 360 pid_t pid() const { return mPid; } 361 virtual status_t dump(int fd, const Vector<String16>& args); 362 363 audio_session_t getAudioSessionId() { return mAudioSessionId; } 364 // Modular DRM 365 virtual status_t prepareDrm(const uint8_t uuid[16], const Vector<uint8_t>& drmSessionId); 366 virtual status_t releaseDrm(); 367 368 private: 369 class ServiceDeathNotifier: 370 public IBinder::DeathRecipient, 371 public ::android::hardware::hidl_death_recipient 372 { 373 public: 374 ServiceDeathNotifier( 375 const sp<IBinder>& service, 376 const sp<MediaPlayerBase>& listener, 377 int which); 378 ServiceDeathNotifier( 379 const sp<IOmx>& omx, 380 const sp<MediaPlayerBase>& listener, 381 int which); 382 virtual ~ServiceDeathNotifier(); 383 virtual void binderDied(const wp<IBinder>& who); 384 virtual void serviceDied( 385 uint64_t cookie, 386 const wp<::android::hidl::base::V1_0::IBase>& who); 387 void unlinkToDeath(); 388 389 private: 390 int mWhich; 391 sp<IBinder> mService; 392 sp<IOmx> mOmx; 393 wp<MediaPlayerBase> mListener; 394 }; 395 396 void clearDeathNotifiers(); 397 398 friend class MediaPlayerService; 399 Client( const sp<MediaPlayerService>& service, 400 pid_t pid, 401 int32_t connId, 402 const sp<IMediaPlayerClient>& client, 403 audio_session_t audioSessionId, 404 uid_t uid); 405 Client(); 406 virtual ~Client(); 407 408 void deletePlayer(); 409 410 sp<MediaPlayerBase> getPlayer() const { Mutex::Autolock lock(mLock); return mPlayer; } 411 412 413 414 // @param type Of the metadata to be tested. 415 // @return true if the metadata should be dropped according to 416 // the filters. 417 bool shouldDropMetadata(media::Metadata::Type type) const; 418 419 // Add a new element to the set of metadata updated. Noop if 420 // the element exists already. 421 // @param type Of the metadata to be recorded. 422 void addNewMetadataUpdate(media::Metadata::Type type); 423 424 // Disconnect from the currently connected ANativeWindow. 425 void disconnectNativeWindow(); 426 427 status_t setAudioAttributes_l(const Parcel &request); 428 429 mutable Mutex mLock; 430 sp<MediaPlayerBase> mPlayer; 431 sp<MediaPlayerService> mService; 432 sp<IMediaPlayerClient> mClient; 433 sp<AudioOutput> mAudioOutput; 434 pid_t mPid; 435 status_t mStatus; 436 bool mLoop; 437 int32_t mConnId; 438 audio_session_t mAudioSessionId; 439 audio_attributes_t * mAudioAttributes; 440 uid_t mUid; 441 sp<ANativeWindow> mConnectedWindow; 442 sp<IBinder> mConnectedWindowBinder; 443 struct sockaddr_in mRetransmitEndpoint; 444 bool mRetransmitEndpointValid; 445 sp<Client> mNextClient; 446 447 // Metadata filters. 448 media::Metadata::Filter mMetadataAllow; // protected by mLock 449 media::Metadata::Filter mMetadataDrop; // protected by mLock 450 451 // Metadata updated. For each MEDIA_INFO_METADATA_UPDATE 452 // notification we try to update mMetadataUpdated which is a 453 // set: no duplicate. 454 // getMetadata clears this set. 455 media::Metadata::Filter mMetadataUpdated; // protected by mLock 456 457 sp<ServiceDeathNotifier> mExtractorDeathListener; 458 sp<ServiceDeathNotifier> mCodecDeathListener; 459#if CALLBACK_ANTAGONIZER 460 Antagonizer* mAntagonizer; 461#endif 462 }; // Client 463 464// ---------------------------------------------------------------------------- 465 466 MediaPlayerService(); 467 virtual ~MediaPlayerService(); 468 469 mutable Mutex mLock; 470 SortedVector< wp<Client> > mClients; 471 SortedVector< wp<MediaRecorderClient> > mMediaRecorderClients; 472 int32_t mNextConnId; 473 sp<IOMX> mOMX; 474}; 475 476// ---------------------------------------------------------------------------- 477 478}; // namespace android 479 480#endif // ANDROID_MEDIAPLAYERSERVICE_H 481