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Diffstat (limited to 'media/libmediaplayerservice/MediaPlayerService.h')
| -rw-r--r-- | media/libmediaplayerservice/MediaPlayerService.h | 430 |
1 files changed, 430 insertions, 0 deletions
diff --git a/media/libmediaplayerservice/MediaPlayerService.h b/media/libmediaplayerservice/MediaPlayerService.h new file mode 100644 index 0000000..b08dd6c --- /dev/null +++ b/media/libmediaplayerservice/MediaPlayerService.h @@ -0,0 +1,430 @@ +/* +** +** 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 <arpa/inet.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 <media/stagefright/foundation/ABase.h> + +#include <system/audio.h> + +namespace android { + +class AudioTrack; +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 + { + class CallbackData; + + 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, audio_channel_mask_t channelMask, + audio_format_t 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(audio_stream_type_t streamType) { mStreamType = streamType; } + 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<String16>& args) const; + + static bool isOnEmulator(); + static int getMinBufferCount(); + void setNextOutput(const sp<AudioOutput>& nextOutput); + void switchToNextOutput(); + virtual bool needsTrailingPadding() { return mNextOutput == NULL; } + + private: + static void setMinBufferCount(); + static void CallbackWrapper( + int event, void *me, void *info); + + AudioTrack* mTrack; + AudioTrack* mRecycledTrack; + sp<AudioOutput> mNextOutput; + AudioCallback mCallback; + void * mCallbackCookie; + CallbackData * mCallbackData; + audio_stream_type_t mStreamType; + float mLeftVolume; + float mRightVolume; + int32_t mPlaybackRatePermille; + uint32_t mSampleRateHz; // sample rate of the content, as set in open() + float mMsecsPerFrame; + int mSessionId; + float mSendLevel; + int mAuxEffectId; + static bool mIsOnEmulator; + static int mMinBufferCount; // 12 for emulator; otherwise 4 + + // 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 + + + 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, audio_channel_mask_t channelMask, + audio_format_t 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(audio_stream_type_t streamType) {} + void setVolume(float left, float right) {} + virtual status_t setPlaybackRatePermille(int32_t ratePermille) { return INVALID_OPERATION; } + uint32_t sampleRate() const { return mSampleRate; } + audio_format_t format() const { return 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; + audio_format_t mFormat; + ssize_t mFrameCount; + uint32_t mSampleRate; + uint32_t mSize; + int mError; + bool mCommandComplete; + + sp<Thread> mCallbackThread; + }; // AudioCache + +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); + + virtual sp<IMediaPlayer> create(pid_t pid, const sp<IMediaPlayerClient>& client, int audioSessionId); + + virtual sp<IMemory> decode(const char* url, uint32_t *pSampleRate, int* pNumChannels, audio_format_t* pFormat); + virtual sp<IMemory> decode(int fd, int64_t offset, int64_t length, uint32_t *pSampleRate, int* pNumChannels, audio_format_t* pFormat); + virtual sp<IOMX> getOMX(); + virtual sp<ICrypto> makeCrypto(); + + 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 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(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 setNextPlayer(const sp<IMediaPlayer>& player); + + sp<MediaPlayerBase> createPlayer(player_type playerType); + + virtual status_t setDataSource( + const char *url, + const KeyedVector<String8, String8> *headers); + + virtual status_t setDataSource(int fd, int64_t offset, int64_t length); + + virtual status_t setDataSource(const sp<IStreamSource> &source); + + sp<MediaPlayerBase> setDataSource_pre(player_type playerType); + void setDataSource_post(const sp<MediaPlayerBase>& p, + status_t status); + + player_type getPlayerType(int fd, int64_t offset, int64_t length); + player_type getPlayerType(const char* url); + player_type getPlayerType(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, + uid_t uid); + 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); + + // Disconnect from the currently connected ANativeWindow. + void disconnectNativeWindow(); + + 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; + uid_t mUID; + sp<ANativeWindow> mConnectedWindow; + sp<IBinder> mConnectedWindowBinder; + struct sockaddr_in mRetransmitEndpoint; + bool mRetransmitEndpointValid; + sp<Client> 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<Client> > mClients; + SortedVector< wp<MediaRecorderClient> > mMediaRecorderClients; + int32_t mNextConnId; + sp<IOMX> mOMX; + sp<ICrypto> mCrypto; +}; + +// ---------------------------------------------------------------------------- + +}; // namespace android + +#endif // ANDROID_MEDIAPLAYERSERVICE_H |