/* ** ** Copyright 2008, The Android Open Source Project ** ** Licensed under the Apache License, Version 2.0 (the "License"); ** you may not use this file except in compliance with the License. ** You may obtain a copy of the License at ** ** http://www.apache.org/licenses/LICENSE-2.0 ** ** Unless required by applicable law or agreed to in writing, software ** distributed under the License is distributed on an "AS IS" BASIS, ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. ** See the License for the specific language governing permissions and ** limitations under the License. */ #ifndef ANDROID_MEDIAPLAYERSERVICE_H #define ANDROID_MEDIAPLAYERSERVICE_H #include #include #include #include #include #include #include #include #include #include namespace android { class AudioTrack; class IMediaRecorder; class IMediaMetadataRetriever; class IOMX; class IRemoteDisplay; class IRemoteDisplayClient; class MediaRecorderClient; #define CALLBACK_ANTAGONIZER 0 #if CALLBACK_ANTAGONIZER class Antagonizer { public: Antagonizer(notify_callback_f cb, void* client); void start() { mActive = true; } void stop() { mActive = false; } void kill(); private: static const int interval; Antagonizer(); static int callbackThread(void* cookie); Mutex mLock; Condition mCondition; bool mExit; bool mActive; void* mClient; notify_callback_f mCb; }; #endif class MediaPlayerService : public BnMediaPlayerService { class Client; class AudioOutput : public MediaPlayerBase::AudioSink { class CallbackData; public: AudioOutput(int sessionId, int uid, int pid, const audio_attributes_t * attr); virtual ~AudioOutput(); virtual bool ready() const { return mTrack != 0; } virtual ssize_t bufferSize() const; virtual ssize_t frameCount() const; virtual ssize_t channelCount() const; virtual ssize_t frameSize() const; virtual uint32_t latency() const; virtual float msecsPerFrame() const; virtual status_t getPosition(uint32_t *position) const; virtual status_t getTimestamp(AudioTimestamp &ts) const; virtual status_t getFramesWritten(uint32_t *frameswritten) const; virtual int getSessionId() const; virtual uint32_t getSampleRate() const; virtual status_t open( uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask, audio_format_t format, int bufferCount, AudioCallback cb, void *cookie, audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE, const audio_offload_info_t *offloadInfo = NULL); virtual status_t start(); virtual ssize_t write(const void* buffer, size_t size); virtual void stop(); virtual void flush(); virtual void pause(); virtual void close(); void setAudioStreamType(audio_stream_type_t streamType) { mStreamType = streamType; } virtual audio_stream_type_t getAudioStreamType() const { return mStreamType; } void setAudioAttributes(const audio_attributes_t * attributes); void setVolume(float left, float right); virtual status_t setPlaybackRatePermille(int32_t ratePermille); status_t setAuxEffectSendLevel(float level); status_t attachAuxEffect(int effectId); virtual status_t dump(int fd, const Vector& args) const; static bool isOnEmulator(); static int getMinBufferCount(); void setNextOutput(const sp& nextOutput); void switchToNextOutput(); virtual bool needsTrailingPadding() { return mNextOutput == NULL; } virtual status_t setParameters(const String8& keyValuePairs); virtual String8 getParameters(const String8& keys); private: static void setMinBufferCount(); static void CallbackWrapper( int event, void *me, void *info); void deleteRecycledTrack(); sp mTrack; sp mRecycledTrack; sp mNextOutput; AudioCallback mCallback; void * mCallbackCookie; CallbackData * mCallbackData; uint64_t mBytesWritten; audio_stream_type_t mStreamType; const audio_attributes_t *mAttributes; float mLeftVolume; float mRightVolume; int32_t mPlaybackRatePermille; uint32_t mSampleRateHz; // sample rate of the content, as set in open() float mMsecsPerFrame; int mSessionId; int mUid; int mPid; float mSendLevel; int mAuxEffectId; static bool mIsOnEmulator; static int mMinBufferCount; // 12 for emulator; otherwise 4 audio_output_flags_t mFlags; // CallbackData is what is passed to the AudioTrack as the "user" data. // We need to be able to target this to a different Output on the fly, // so we can't use the Output itself for this. class CallbackData { public: CallbackData(AudioOutput *cookie) { mData = cookie; mSwitching = false; } AudioOutput * getOutput() { return mData;} void setOutput(AudioOutput* newcookie) { mData = newcookie; } // lock/unlock are used by the callback before accessing the payload of this object void lock() { mLock.lock(); } void unlock() { mLock.unlock(); } // beginTrackSwitch/endTrackSwitch are used when this object is being handed over // to the next sink. void beginTrackSwitch() { mLock.lock(); mSwitching = true; } void endTrackSwitch() { if (mSwitching) { mLock.unlock(); } mSwitching = false; } private: AudioOutput * mData; mutable Mutex mLock; bool mSwitching; DISALLOW_EVIL_CONSTRUCTORS(CallbackData); }; }; // AudioOutput public: static void instantiate(); // IMediaPlayerService interface virtual sp createMediaRecorder(); void removeMediaRecorderClient(wp client); virtual sp createMetadataRetriever(); virtual sp create(const sp& client, int audioSessionId); virtual sp getCodecList() const; virtual sp getOMX(); virtual sp makeCrypto(); virtual sp makeDrm(); virtual sp makeHDCP(bool createEncryptionModule); virtual sp listenForRemoteDisplay(const sp& client, const String8& iface); virtual status_t dump(int fd, const Vector& args); void removeClient(wp client); // For battery usage tracking purpose struct BatteryUsageInfo { // how many streams are being played by one UID int refCount; // a temp variable to store the duration(ms) of audio codecs // when we start a audio codec, we minus the system time from audioLastTime // when we pause it, we add the system time back to the audioLastTime // so after the pause, audioLastTime = pause time - start time // if multiple audio streams are played (or recorded), then audioLastTime // = the total playing time of all the streams int32_t audioLastTime; // when all the audio streams are being paused, we assign audioLastTime to // this variable, so this value could be provided to the battery app // in the next pullBatteryData call int32_t audioTotalTime; int32_t videoLastTime; int32_t videoTotalTime; }; KeyedVector mBatteryData; enum { SPEAKER, OTHER_AUDIO_DEVICE, SPEAKER_AND_OTHER, NUM_AUDIO_DEVICES }; struct BatteryAudioFlingerUsageInfo { int refCount; // how many audio streams are being played int deviceOn[NUM_AUDIO_DEVICES]; // whether the device is currently used int32_t lastTime[NUM_AUDIO_DEVICES]; // in ms // totalTime[]: total time of audio output devices usage int32_t totalTime[NUM_AUDIO_DEVICES]; // in ms }; // This varialble is used to record the usage of audio output device // for battery app BatteryAudioFlingerUsageInfo mBatteryAudio; // Collect info of the codec usage from media player and media recorder virtual void addBatteryData(uint32_t params); // API for the Battery app to pull the data of codecs usage virtual status_t pullBatteryData(Parcel* reply); private: class Client : public BnMediaPlayer { // IMediaPlayer interface virtual void disconnect(); virtual status_t setVideoSurfaceTexture( const sp& bufferProducer); virtual status_t prepareAsync(); virtual status_t start(); virtual status_t stop(); virtual status_t pause(); virtual status_t isPlaying(bool* state); virtual status_t seekTo(int msec); virtual status_t getCurrentPosition(int* msec); virtual status_t getDuration(int* msec); virtual status_t reset(); virtual status_t setAudioStreamType(audio_stream_type_t type); virtual status_t setLooping(int loop); virtual status_t setVolume(float leftVolume, float rightVolume); virtual status_t invoke(const Parcel& request, Parcel *reply); virtual status_t setMetadataFilter(const Parcel& filter); virtual status_t getMetadata(bool update_only, bool apply_filter, Parcel *reply); virtual status_t setAuxEffectSendLevel(float level); virtual status_t attachAuxEffect(int effectId); virtual status_t setParameter(int key, const Parcel &request); virtual status_t getParameter(int key, Parcel *reply); virtual status_t setRetransmitEndpoint(const struct sockaddr_in* endpoint); virtual status_t getRetransmitEndpoint(struct sockaddr_in* endpoint); virtual status_t setNextPlayer(const sp& player); sp createPlayer(player_type playerType); virtual status_t setDataSource( const sp &httpService, const char *url, const KeyedVector *headers); virtual status_t setDataSource(int fd, int64_t offset, int64_t length); virtual status_t setDataSource(const sp &source); sp setDataSource_pre(player_type playerType); void setDataSource_post(const sp& p, status_t status); static void notify(void* cookie, int msg, int ext1, int ext2, const Parcel *obj); pid_t pid() const { return mPid; } virtual status_t dump(int fd, const Vector& args) const; int getAudioSessionId() { return mAudioSessionId; } private: friend class MediaPlayerService; Client( const sp& service, pid_t pid, int32_t connId, const sp& client, int audioSessionId, uid_t uid); Client(); virtual ~Client(); void deletePlayer(); sp getPlayer() const { Mutex::Autolock lock(mLock); return mPlayer; } // @param type Of the metadata to be tested. // @return true if the metadata should be dropped according to // the filters. bool shouldDropMetadata(media::Metadata::Type type) const; // Add a new element to the set of metadata updated. Noop if // the element exists already. // @param type Of the metadata to be recorded. void addNewMetadataUpdate(media::Metadata::Type type); // Disconnect from the currently connected ANativeWindow. void disconnectNativeWindow(); status_t setAudioAttributes_l(const Parcel &request); mutable Mutex mLock; sp mPlayer; sp mService; sp mClient; sp mAudioOutput; pid_t mPid; status_t mStatus; bool mLoop; int32_t mConnId; int mAudioSessionId; audio_attributes_t * mAudioAttributes; uid_t mUID; sp mConnectedWindow; sp mConnectedWindowBinder; struct sockaddr_in mRetransmitEndpoint; bool mRetransmitEndpointValid; sp mNextClient; // Metadata filters. media::Metadata::Filter mMetadataAllow; // protected by mLock media::Metadata::Filter mMetadataDrop; // protected by mLock // Metadata updated. For each MEDIA_INFO_METADATA_UPDATE // notification we try to update mMetadataUpdated which is a // set: no duplicate. // getMetadata clears this set. media::Metadata::Filter mMetadataUpdated; // protected by mLock #if CALLBACK_ANTAGONIZER Antagonizer* mAntagonizer; #endif }; // Client // ---------------------------------------------------------------------------- MediaPlayerService(); virtual ~MediaPlayerService(); mutable Mutex mLock; SortedVector< wp > mClients; SortedVector< wp > mMediaRecorderClients; int32_t mNextConnId; sp mOMX; sp mCrypto; }; // ---------------------------------------------------------------------------- }; // namespace android #endif // ANDROID_MEDIAPLAYERSERVICE_H