MediaPlayerService.h revision faeb0f291330134dc4468359a36e099aae508449
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 37struct AudioPlaybackRate; 38class AudioTrack; 39struct AVSyncSettings; 40class IDataSource; 41class IMediaRecorder; 42class IMediaMetadataRetriever; 43class IOMX; 44class IRemoteDisplay; 45class IRemoteDisplayClient; 46class MediaRecorderClient; 47 48#define CALLBACK_ANTAGONIZER 0 49#if CALLBACK_ANTAGONIZER 50class Antagonizer { 51public: 52 Antagonizer(notify_callback_f cb, void* client); 53 void start() { mActive = true; } 54 void stop() { mActive = false; } 55 void kill(); 56private: 57 static const int interval; 58 Antagonizer(); 59 static int callbackThread(void* cookie); 60 Mutex mLock; 61 Condition mCondition; 62 bool mExit; 63 bool mActive; 64 void* mClient; 65 notify_callback_f mCb; 66}; 67#endif 68 69class MediaPlayerService : public BnMediaPlayerService 70{ 71 class Client; 72 73 class AudioOutput : public MediaPlayerBase::AudioSink 74 { 75 class CallbackData; 76 77 public: 78 AudioOutput(int sessionId, int uid, int pid, 79 const audio_attributes_t * attr); 80 virtual ~AudioOutput(); 81 82 virtual bool ready() const { return mTrack != 0; } 83 virtual ssize_t bufferSize() const; 84 virtual ssize_t frameCount() const; 85 virtual ssize_t channelCount() const; 86 virtual ssize_t frameSize() const; 87 virtual uint32_t latency() const; 88 virtual float msecsPerFrame() const; 89 virtual status_t getPosition(uint32_t *position) const; 90 virtual status_t getTimestamp(AudioTimestamp &ts) const; 91 virtual status_t getFramesWritten(uint32_t *frameswritten) const; 92 virtual int getSessionId() const; 93 virtual uint32_t getSampleRate() const; 94 95 virtual status_t open( 96 uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask, 97 audio_format_t format, int bufferCount, 98 AudioCallback cb, void *cookie, 99 audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE, 100 const audio_offload_info_t *offloadInfo = NULL, 101 bool doNotReconnect = false); 102 103 virtual status_t start(); 104 virtual ssize_t write(const void* buffer, size_t size, bool blocking = true); 105 virtual void stop(); 106 virtual void flush(); 107 virtual void pause(); 108 virtual void close(); 109 void setAudioStreamType(audio_stream_type_t streamType) { 110 mStreamType = streamType; } 111 virtual audio_stream_type_t getAudioStreamType() const { return mStreamType; } 112 void setAudioAttributes(const audio_attributes_t * attributes); 113 114 void setVolume(float left, float right); 115 virtual status_t setPlaybackRate(const AudioPlaybackRate& rate); 116 virtual status_t getPlaybackRate(AudioPlaybackRate* rate /* nonnull */); 117 118 status_t setAuxEffectSendLevel(float level); 119 status_t attachAuxEffect(int effectId); 120 virtual status_t dump(int fd, const Vector<String16>& args) const; 121 122 static bool isOnEmulator(); 123 static int getMinBufferCount(); 124 void setNextOutput(const sp<AudioOutput>& nextOutput); 125 void switchToNextOutput(); 126 virtual bool needsTrailingPadding() { return mNextOutput == NULL; } 127 virtual status_t setParameters(const String8& keyValuePairs); 128 virtual String8 getParameters(const String8& keys); 129 130 private: 131 static void setMinBufferCount(); 132 static void CallbackWrapper( 133 int event, void *me, void *info); 134 void deleteRecycledTrack(); 135 136 sp<AudioTrack> mTrack; 137 sp<AudioTrack> mRecycledTrack; 138 sp<AudioOutput> mNextOutput; 139 AudioCallback mCallback; 140 void * mCallbackCookie; 141 CallbackData * mCallbackData; 142 uint64_t mBytesWritten; 143 audio_stream_type_t mStreamType; 144 const audio_attributes_t *mAttributes; 145 float mLeftVolume; 146 float mRightVolume; 147 AudioPlaybackRate mPlaybackRate; 148 uint32_t mSampleRateHz; // sample rate of the content, as set in open() 149 float mMsecsPerFrame; 150 int mSessionId; 151 int mUid; 152 int mPid; 153 float mSendLevel; 154 int mAuxEffectId; 155 static bool mIsOnEmulator; 156 static int mMinBufferCount; // 12 for emulator; otherwise 4 157 audio_output_flags_t mFlags; 158 159 // CallbackData is what is passed to the AudioTrack as the "user" data. 160 // We need to be able to target this to a different Output on the fly, 161 // so we can't use the Output itself for this. 162 class CallbackData { 163 public: 164 CallbackData(AudioOutput *cookie) { 165 mData = cookie; 166 mSwitching = false; 167 } 168 AudioOutput * getOutput() { return mData;} 169 void setOutput(AudioOutput* newcookie) { mData = newcookie; } 170 // lock/unlock are used by the callback before accessing the payload of this object 171 void lock() { mLock.lock(); } 172 void unlock() { mLock.unlock(); } 173 // beginTrackSwitch/endTrackSwitch are used when this object is being handed over 174 // to the next sink. 175 void beginTrackSwitch() { mLock.lock(); mSwitching = true; } 176 void endTrackSwitch() { 177 if (mSwitching) { 178 mLock.unlock(); 179 } 180 mSwitching = false; 181 } 182 private: 183 AudioOutput * mData; 184 mutable Mutex mLock; 185 bool mSwitching; 186 DISALLOW_EVIL_CONSTRUCTORS(CallbackData); 187 }; 188 189 }; // AudioOutput 190 191 192public: 193 static void instantiate(); 194 195 // IMediaPlayerService interface 196 virtual sp<IMediaRecorder> createMediaRecorder(const String16 &opPackageName); 197 void removeMediaRecorderClient(wp<MediaRecorderClient> client); 198 virtual sp<IMediaMetadataRetriever> createMetadataRetriever(); 199 200 virtual sp<IMediaPlayer> create(const sp<IMediaPlayerClient>& client, int audioSessionId); 201 202 virtual sp<IMediaCodecList> getCodecList() const; 203 virtual sp<IOMX> getOMX(); 204 virtual sp<ICrypto> makeCrypto(); 205 virtual sp<IDrm> makeDrm(); 206 virtual sp<IHDCP> makeHDCP(bool createEncryptionModule); 207 208 virtual sp<IRemoteDisplay> listenForRemoteDisplay(const String16 &opPackageName, 209 const sp<IRemoteDisplayClient>& client, const String8& iface); 210 virtual status_t dump(int fd, const Vector<String16>& args); 211 212 void removeClient(wp<Client> client); 213 214 // For battery usage tracking purpose 215 struct BatteryUsageInfo { 216 // how many streams are being played by one UID 217 int refCount; 218 // a temp variable to store the duration(ms) of audio codecs 219 // when we start a audio codec, we minus the system time from audioLastTime 220 // when we pause it, we add the system time back to the audioLastTime 221 // so after the pause, audioLastTime = pause time - start time 222 // if multiple audio streams are played (or recorded), then audioLastTime 223 // = the total playing time of all the streams 224 int32_t audioLastTime; 225 // when all the audio streams are being paused, we assign audioLastTime to 226 // this variable, so this value could be provided to the battery app 227 // in the next pullBatteryData call 228 int32_t audioTotalTime; 229 230 int32_t videoLastTime; 231 int32_t videoTotalTime; 232 }; 233 KeyedVector<int, BatteryUsageInfo> mBatteryData; 234 235 enum { 236 SPEAKER, 237 OTHER_AUDIO_DEVICE, 238 SPEAKER_AND_OTHER, 239 NUM_AUDIO_DEVICES 240 }; 241 242 struct BatteryAudioFlingerUsageInfo { 243 int refCount; // how many audio streams are being played 244 int deviceOn[NUM_AUDIO_DEVICES]; // whether the device is currently used 245 int32_t lastTime[NUM_AUDIO_DEVICES]; // in ms 246 // totalTime[]: total time of audio output devices usage 247 int32_t totalTime[NUM_AUDIO_DEVICES]; // in ms 248 }; 249 250 // This varialble is used to record the usage of audio output device 251 // for battery app 252 BatteryAudioFlingerUsageInfo mBatteryAudio; 253 254 // Collect info of the codec usage from media player and media recorder 255 virtual void addBatteryData(uint32_t params); 256 // API for the Battery app to pull the data of codecs usage 257 virtual status_t pullBatteryData(Parcel* reply); 258private: 259 260 class Client : public BnMediaPlayer { 261 // IMediaPlayer interface 262 virtual void disconnect(); 263 virtual status_t setVideoSurfaceTexture( 264 const sp<IGraphicBufferProducer>& bufferProducer); 265 virtual status_t prepareAsync(); 266 virtual status_t start(); 267 virtual status_t stop(); 268 virtual status_t pause(); 269 virtual status_t isPlaying(bool* state); 270 virtual status_t setPlaybackSettings(const AudioPlaybackRate& rate); 271 virtual status_t getPlaybackSettings(AudioPlaybackRate* rate /* nonnull */); 272 virtual status_t setSyncSettings(const AVSyncSettings& rate, float videoFpsHint); 273 virtual status_t getSyncSettings(AVSyncSettings* rate /* nonnull */, 274 float* videoFps /* nonnull */); 275 virtual status_t seekTo(int msec); 276 virtual status_t getCurrentPosition(int* msec); 277 virtual status_t getDuration(int* msec); 278 virtual status_t reset(); 279 virtual status_t setAudioStreamType(audio_stream_type_t type); 280 virtual status_t setLooping(int loop); 281 virtual status_t setVolume(float leftVolume, float rightVolume); 282 virtual status_t invoke(const Parcel& request, Parcel *reply); 283 virtual status_t setMetadataFilter(const Parcel& filter); 284 virtual status_t getMetadata(bool update_only, 285 bool apply_filter, 286 Parcel *reply); 287 virtual status_t setAuxEffectSendLevel(float level); 288 virtual status_t attachAuxEffect(int effectId); 289 virtual status_t setParameter(int key, const Parcel &request); 290 virtual status_t getParameter(int key, Parcel *reply); 291 virtual status_t setRetransmitEndpoint(const struct sockaddr_in* endpoint); 292 virtual status_t getRetransmitEndpoint(struct sockaddr_in* endpoint); 293 virtual status_t setNextPlayer(const sp<IMediaPlayer>& player); 294 295 sp<MediaPlayerBase> createPlayer(player_type playerType); 296 297 virtual status_t setDataSource( 298 const sp<IMediaHTTPService> &httpService, 299 const char *url, 300 const KeyedVector<String8, String8> *headers); 301 302 virtual status_t setDataSource(int fd, int64_t offset, int64_t length); 303 304 virtual status_t setDataSource(const sp<IStreamSource> &source); 305 virtual status_t setDataSource(const sp<IDataSource> &source); 306 307 308 sp<MediaPlayerBase> setDataSource_pre(player_type playerType); 309 void setDataSource_post(const sp<MediaPlayerBase>& p, 310 status_t status); 311 312 static void notify(void* cookie, int msg, 313 int ext1, int ext2, const Parcel *obj); 314 315 pid_t pid() const { return mPid; } 316 virtual status_t dump(int fd, const Vector<String16>& args); 317 318 int getAudioSessionId() { return mAudioSessionId; } 319 320 private: 321 friend class MediaPlayerService; 322 Client( const sp<MediaPlayerService>& service, 323 pid_t pid, 324 int32_t connId, 325 const sp<IMediaPlayerClient>& client, 326 int audioSessionId, 327 uid_t uid); 328 Client(); 329 virtual ~Client(); 330 331 void deletePlayer(); 332 333 sp<MediaPlayerBase> getPlayer() const { Mutex::Autolock lock(mLock); return mPlayer; } 334 335 336 337 // @param type Of the metadata to be tested. 338 // @return true if the metadata should be dropped according to 339 // the filters. 340 bool shouldDropMetadata(media::Metadata::Type type) const; 341 342 // Add a new element to the set of metadata updated. Noop if 343 // the element exists already. 344 // @param type Of the metadata to be recorded. 345 void addNewMetadataUpdate(media::Metadata::Type type); 346 347 // Disconnect from the currently connected ANativeWindow. 348 void disconnectNativeWindow(); 349 350 status_t setAudioAttributes_l(const Parcel &request); 351 352 mutable Mutex mLock; 353 sp<MediaPlayerBase> mPlayer; 354 sp<MediaPlayerService> mService; 355 sp<IMediaPlayerClient> mClient; 356 sp<AudioOutput> mAudioOutput; 357 pid_t mPid; 358 status_t mStatus; 359 bool mLoop; 360 int32_t mConnId; 361 int mAudioSessionId; 362 audio_attributes_t * mAudioAttributes; 363 uid_t mUID; 364 sp<ANativeWindow> mConnectedWindow; 365 sp<IBinder> mConnectedWindowBinder; 366 struct sockaddr_in mRetransmitEndpoint; 367 bool mRetransmitEndpointValid; 368 sp<Client> mNextClient; 369 370 // Metadata filters. 371 media::Metadata::Filter mMetadataAllow; // protected by mLock 372 media::Metadata::Filter mMetadataDrop; // protected by mLock 373 374 // Metadata updated. For each MEDIA_INFO_METADATA_UPDATE 375 // notification we try to update mMetadataUpdated which is a 376 // set: no duplicate. 377 // getMetadata clears this set. 378 media::Metadata::Filter mMetadataUpdated; // protected by mLock 379 380#if CALLBACK_ANTAGONIZER 381 Antagonizer* mAntagonizer; 382#endif 383 }; // Client 384 385// ---------------------------------------------------------------------------- 386 387 MediaPlayerService(); 388 virtual ~MediaPlayerService(); 389 390 mutable Mutex mLock; 391 SortedVector< wp<Client> > mClients; 392 SortedVector< wp<MediaRecorderClient> > mMediaRecorderClients; 393 int32_t mNextConnId; 394 sp<IOMX> mOMX; 395 sp<ICrypto> mCrypto; 396}; 397 398// ---------------------------------------------------------------------------- 399 400}; // namespace android 401 402#endif // ANDROID_MEDIAPLAYERSERVICE_H 403