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Diffstat (limited to 'media/libmediaplayerservice/MediaPlayerService.h')
| -rw-r--r-- | media/libmediaplayerservice/MediaPlayerService.h | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/media/libmediaplayerservice/MediaPlayerService.h b/media/libmediaplayerservice/MediaPlayerService.h new file mode 100644 index 0000000..c2007cb --- /dev/null +++ b/media/libmediaplayerservice/MediaPlayerService.h @@ -0,0 +1,222 @@ +/* +** +** 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.h> +#include <utils/KeyedVector.h> +#include <ui/SurfaceComposerClient.h> + +#include <media/IMediaPlayerService.h> +#include <media/MediaPlayerInterface.h> + +class SkBitmap; + +namespace android { + +#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(); + 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 open(uint32_t sampleRate, int channelCount, int bufferCount=4); + 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); + virtual status_t dump(int fd, const Vector<String16>& args) const; + private: + AudioTrack* mTrack; + int mStreamType; + float mLeftVolume; + float mRightVolume; + float mMsecsPerFrame; + uint32_t mLatency; + static const uint32_t kDriverLatencyInMsecs; + }; + + 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 4096; } + virtual ssize_t frameCount() const { return mFrameCount; } + virtual ssize_t channelCount() const { return mChannelCount; } + virtual ssize_t frameSize() const { return ssize_t(mChannelCount * sizeof(int16_t)); } + virtual uint32_t latency() const; + virtual float msecsPerFrame() const; + virtual status_t open(uint32_t sampleRate, int channelCount, int bufferCount=1); + 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; } + 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); + virtual status_t dump(int fd, const Vector<String16>& args) const; + + private: + AudioCache(); + + Mutex mLock; + Condition mSignal; + sp<MemoryHeapBase> mHeap; + float mMsecsPerFrame; + ssize_t mChannelCount; + ssize_t mFrameCount; + uint32_t mSampleRate; + uint32_t mSize; + int mError; + bool mCommandComplete; + }; + +public: + static void instantiate(); + + // IMediaPlayerService interface + virtual sp<IMediaPlayer> create(pid_t pid, const sp<IMediaPlayerClient>& client, const char* url); + virtual sp<IMediaPlayer> create(pid_t pid, const sp<IMediaPlayerClient>& client, int fd, int64_t offset, int64_t length); + virtual sp<IMemory> decode(const char* url, uint32_t *pSampleRate, int* pNumChannels); + virtual sp<IMemory> decode(int fd, int64_t offset, int64_t length, uint32_t *pSampleRate, int* pNumChannels); + + virtual status_t dump(int fd, const Vector<String16>& args); + + void removeClient(wp<Client> client); + +private: + + class Client : public BnMediaPlayer { + + // IMediaPlayer interface + virtual void disconnect(); + virtual status_t setVideoSurface(const sp<ISurface>& surface); + 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 getVideoSize(int* w, int* h); + 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); + + sp<MediaPlayerBase> createPlayer(player_type playerType); + status_t setDataSource(const char *url); + status_t setDataSource(int fd, int64_t offset, int64_t length); + static void notify(void* cookie, int msg, int ext1, int ext2); + + pid_t pid() const { return mPid; } + virtual status_t dump(int fd, const Vector<String16>& args) const; + + private: + friend class MediaPlayerService; + Client( const sp<MediaPlayerService>& service, + pid_t pid, + int32_t connId, + const sp<IMediaPlayerClient>& client); + Client(); + virtual ~Client(); + + void deletePlayer(); + + sp<MediaPlayerBase> getPlayer() const { Mutex::Autolock lock(mLock); return mPlayer; } + + 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; +#if CALLBACK_ANTAGONIZER + Antagonizer* mAntagonizer; +#endif + }; + +// ---------------------------------------------------------------------------- + + MediaPlayerService(); + virtual ~MediaPlayerService(); + + mutable Mutex mLock; + SortedVector< wp<Client> > mClients; + int32_t mNextConnId; +}; + +// ---------------------------------------------------------------------------- + +}; // namespace android + +#endif // ANDROID_MEDIAPLAYERSERVICE_H + |