| /* |
| ** |
| ** 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 <utils/Log.h> |
| #include <utils/threads.h> |
| #include <utils/List.h> |
| #include <utils/Errors.h> |
| #include <utils/KeyedVector.h> |
| #include <utils/String8.h> |
| #include <utils/Vector.h> |
| |
| #include <media/IMediaPlayerService.h> |
| #include <media/MediaPlayerInterface.h> |
| #include <media/Metadata.h> |
| |
| #include <hardware/audio.h> |
| |
| namespace android { |
| |
| class IMediaRecorder; |
| class IMediaMetadataRetriever; |
| class IOMX; |
| 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 |
| { |
| public: |
| AudioOutput(int sessionId); |
| virtual ~AudioOutput(); |
| |
| virtual bool ready() const { return mTrack != NULL; } |
| virtual bool realtime() const { return true; } |
| 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); |
| virtual int getSessionId(); |
| |
| virtual status_t open( |
| uint32_t sampleRate, int channelCount, |
| int format, int bufferCount, |
| AudioCallback cb, void *cookie); |
| |
| virtual void 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(int streamType) { mStreamType = streamType; } |
| void setVolume(float left, float right); |
| status_t setAuxEffectSendLevel(float level); |
| status_t attachAuxEffect(int effectId); |
| virtual status_t dump(int fd, const Vector<String16>& args) const; |
| |
| static bool isOnEmulator(); |
| static int getMinBufferCount(); |
| private: |
| static void setMinBufferCount(); |
| static void CallbackWrapper( |
| int event, void *me, void *info); |
| |
| AudioTrack* mTrack; |
| AudioCallback mCallback; |
| void * mCallbackCookie; |
| int mStreamType; |
| float mLeftVolume; |
| float mRightVolume; |
| float mMsecsPerFrame; |
| uint32_t mLatency; |
| int mSessionId; |
| float mSendLevel; |
| int mAuxEffectId; |
| static bool mIsOnEmulator; |
| static int mMinBufferCount; // 12 for emulator; otherwise 4 |
| |
| }; |
| |
| class AudioCache : public MediaPlayerBase::AudioSink |
| { |
| public: |
| AudioCache(const char* name); |
| virtual ~AudioCache() {} |
| |
| virtual bool ready() const { return (mChannelCount > 0) && (mHeap->getHeapID() > 0); } |
| virtual bool realtime() const { return false; } |
| virtual ssize_t bufferSize() const { return frameSize() * mFrameCount; } |
| virtual ssize_t frameCount() const { return mFrameCount; } |
| virtual ssize_t channelCount() const { return (ssize_t)mChannelCount; } |
| virtual ssize_t frameSize() const { return ssize_t(mChannelCount * ((mFormat == AUDIO_FORMAT_PCM_16_BIT)?sizeof(int16_t):sizeof(u_int8_t))); } |
| virtual uint32_t latency() const; |
| virtual float msecsPerFrame() const; |
| virtual status_t getPosition(uint32_t *position); |
| virtual int getSessionId(); |
| |
| virtual status_t open( |
| uint32_t sampleRate, int channelCount, int format, |
| int bufferCount = 1, |
| AudioCallback cb = NULL, void *cookie = NULL); |
| |
| virtual void 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(int streamType) {} |
| void setVolume(float left, float right) {} |
| uint32_t sampleRate() const { return mSampleRate; } |
| uint32_t format() const { return (uint32_t)mFormat; } |
| size_t size() const { return mSize; } |
| status_t wait(); |
| |
| sp<IMemoryHeap> getHeap() const { return mHeap; } |
| |
| static void notify(void* cookie, int msg, |
| int ext1, int ext2, const Parcel *obj); |
| virtual status_t dump(int fd, const Vector<String16>& args) const; |
| |
| private: |
| AudioCache(); |
| |
| Mutex mLock; |
| Condition mSignal; |
| sp<MemoryHeapBase> mHeap; |
| float mMsecsPerFrame; |
| uint16_t mChannelCount; |
| uint16_t mFormat; |
| ssize_t mFrameCount; |
| uint32_t mSampleRate; |
| uint32_t mSize; |
| int mError; |
| bool mCommandComplete; |
| |
| sp<Thread> mCallbackThread; |
| }; |
| |
| public: |
| static void instantiate(); |
| |
| // IMediaPlayerService interface |
| virtual sp<IMediaRecorder> createMediaRecorder(pid_t pid); |
| void removeMediaRecorderClient(wp<MediaRecorderClient> client); |
| virtual sp<IMediaMetadataRetriever> createMetadataRetriever(pid_t pid); |
| |
| // House keeping for media player clients |
| virtual sp<IMediaPlayer> create( |
| pid_t pid, const sp<IMediaPlayerClient>& client, const char* url, |
| const KeyedVector<String8, String8> *headers, int audioSessionId); |
| |
| virtual sp<IMediaPlayer> create(pid_t pid, const sp<IMediaPlayerClient>& client, int fd, int64_t offset, int64_t length, int audioSessionId); |
| |
| virtual sp<IMediaPlayer> create( |
| pid_t pid, const sp<IMediaPlayerClient> &client, |
| const sp<IStreamSource> &source, int audioSessionId); |
| |
| virtual sp<IMemory> decode(const char* url, uint32_t *pSampleRate, int* pNumChannels, int* pFormat); |
| virtual sp<IMemory> decode(int fd, int64_t offset, int64_t length, uint32_t *pSampleRate, int* pNumChannels, int* pFormat); |
| virtual sp<IOMX> getOMX(); |
| |
| virtual status_t dump(int fd, const Vector<String16>& args); |
| |
| void removeClient(wp<Client> 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<int, BatteryUsageInfo> 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 setVideoSurface(const sp<Surface>& surface); |
| virtual status_t setVideoSurfaceTexture( |
| const sp<ISurfaceTexture>& surfaceTexture); |
| 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(int 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); |
| |
| sp<MediaPlayerBase> createPlayer(player_type playerType); |
| |
| status_t setDataSource( |
| const char *url, |
| const KeyedVector<String8, String8> *headers); |
| |
| status_t setDataSource(int fd, int64_t offset, int64_t length); |
| |
| status_t setDataSource(const sp<IStreamSource> &source); |
| |
| 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<String16>& args) const; |
| |
| int getAudioSessionId() { return mAudioSessionId; } |
| |
| private: |
| friend class MediaPlayerService; |
| Client( const sp<MediaPlayerService>& service, |
| pid_t pid, |
| int32_t connId, |
| const sp<IMediaPlayerClient>& client, |
| int audioSessionId); |
| Client(); |
| virtual ~Client(); |
| |
| void deletePlayer(); |
| |
| sp<MediaPlayerBase> 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); |
| |
| mutable Mutex mLock; |
| sp<MediaPlayerBase> mPlayer; |
| sp<MediaPlayerService> mService; |
| sp<IMediaPlayerClient> mClient; |
| sp<AudioOutput> mAudioOutput; |
| pid_t mPid; |
| status_t mStatus; |
| bool mLoop; |
| int32_t mConnId; |
| int mAudioSessionId; |
| |
| // 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 |
| }; |
| |
| // ---------------------------------------------------------------------------- |
| |
| MediaPlayerService(); |
| virtual ~MediaPlayerService(); |
| |
| mutable Mutex mLock; |
| SortedVector< wp<Client> > mClients; |
| SortedVector< wp<MediaRecorderClient> > mMediaRecorderClients; |
| int32_t mNextConnId; |
| sp<IOMX> mOMX; |
| }; |
| |
| // ---------------------------------------------------------------------------- |
| |
| }; // namespace android |
| |
| #endif // ANDROID_MEDIAPLAYERSERVICE_H |