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      1 /*
      2  * Copyright (C) 2011 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef ANDROID_VIDEOEDITOR_PLAYER_H
     18 #define ANDROID_VIDEOEDITOR_PLAYER_H
     19 
     20 #include <media/MediaPlayerInterface.h>
     21 #include <media/AudioTrack.h>
     22 #include "M4xVSS_API.h"
     23 #include "VideoEditorMain.h"
     24 #include "VideoEditorTools.h"
     25 #include "VideoEditorAudioPlayer.h"
     26 #include "NativeWindowRenderer.h"
     27 
     28 namespace android {
     29 
     30 struct PreviewPlayer;
     31 
     32 class VideoEditorPlayer : public MediaPlayerInterface {
     33     public:
     34     class VeAudioOutput: public MediaPlayerBase::AudioSink
     35     {
     36     public:
     37                                 VeAudioOutput();
     38         virtual                 ~VeAudioOutput();
     39 
     40         virtual bool            ready() const { return mTrack != NULL; }
     41         virtual bool            realtime() const { return true; }
     42         virtual ssize_t         bufferSize() const;
     43         virtual ssize_t         frameCount() const;
     44         virtual ssize_t         channelCount() const;
     45         virtual ssize_t         frameSize() const;
     46         virtual uint32_t        latency() const;
     47         virtual float           msecsPerFrame() const;
     48         virtual status_t        getPosition(uint32_t *position) const;
     49         virtual status_t        getFramesWritten(uint32_t*) const;
     50         virtual int             getSessionId() const;
     51 
     52         virtual status_t        open(
     53                 uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask,
     54                 audio_format_t format, int bufferCount,
     55                 AudioCallback cb, void *cookie, audio_output_flags_t flags,
     56                 const audio_offload_info_t *offloadInfo);
     57 
     58         virtual status_t        start();
     59         virtual ssize_t         write(const void* buffer, size_t size);
     60         virtual void            stop();
     61         virtual void            flush();
     62         virtual void            pause();
     63         virtual void            close();
     64         void setAudioStreamType(audio_stream_type_t streamType) { mStreamType = streamType; }
     65         virtual audio_stream_type_t getAudioStreamType() const { return mStreamType; }
     66                 void            setVolume(float left, float right);
     67         virtual status_t        dump(int fd,const Vector<String16>& args) const;
     68 
     69         static bool             isOnEmulator();
     70         static int              getMinBufferCount();
     71     private:
     72         static void             setMinBufferCount();
     73         static void             CallbackWrapper(
     74                 int event, void *me, void *info);
     75 
     76         sp<AudioTrack>          mTrack;
     77         AudioCallback           mCallback;
     78         void *                  mCallbackCookie;
     79         audio_stream_type_t     mStreamType;
     80         float                   mLeftVolume;
     81         float                   mRightVolume;
     82         float                   mMsecsPerFrame;
     83         uint32_t                mLatency;
     84         int                     mSessionId;
     85         static bool             mIsOnEmulator;
     86         static int              mMinBufferCount; // 12 for emulator; otherwise 4
     87 
     88         public:
     89         uint32_t                mNumFramesWritten;
     90         void                    snoopWrite(const void*, size_t);
     91     };
     92 
     93 public:
     94     VideoEditorPlayer(NativeWindowRenderer* renderer);
     95     virtual ~VideoEditorPlayer();
     96 
     97     virtual status_t initCheck();
     98 
     99     virtual status_t setDataSource(
    100             const char *url, const KeyedVector<String8, String8> *headers);
    101 
    102     virtual status_t setDataSource(int fd, int64_t offset, int64_t length);
    103     virtual status_t setVideoSurface(const sp<Surface> &surface);
    104     virtual status_t setVideoSurfaceTexture(const sp<IGraphicBufferProducer> &bufferProducer);
    105     virtual status_t prepare();
    106     virtual status_t prepareAsync();
    107     virtual status_t start();
    108     virtual status_t stop();
    109     virtual status_t pause();
    110     virtual bool isPlaying();
    111     virtual status_t seekTo(int msec);
    112     virtual status_t getCurrentPosition(int *msec);
    113     virtual status_t getDuration(int *msec);
    114     virtual status_t reset();
    115     virtual status_t setLooping(int loop);
    116     virtual player_type playerType();
    117     virtual status_t invoke(const Parcel &request, Parcel *reply);
    118     virtual void setAudioSink(const sp<AudioSink> &audioSink);
    119     virtual void acquireLock();
    120     virtual void releaseLock();
    121     virtual status_t setParameter(int key, const Parcel &request);
    122     virtual status_t getParameter(int key, Parcel *reply);
    123 
    124     virtual status_t getMetadata(
    125                         const media::Metadata::Filter& ids, Parcel *records);
    126 
    127     virtual status_t loadEffectsSettings(
    128                          M4VSS3GPP_EffectSettings* pEffectSettings, int nEffects);
    129 
    130     virtual status_t loadAudioMixSettings(
    131                          M4xVSS_AudioMixingSettings* pAudioMixSettings);
    132 
    133     virtual status_t setAudioMixPCMFileHandle(
    134                          M4OSA_Context pAudioMixPCMFileHandle);
    135 
    136     virtual status_t setAudioMixStoryBoardParam(
    137                          M4OSA_UInt32 x, M4OSA_UInt32 y, M4OSA_UInt32 z);
    138 
    139     virtual status_t setPlaybackBeginTime(uint32_t msec);
    140     virtual status_t setPlaybackEndTime(uint32_t msec);
    141     virtual status_t setStoryboardStartTime(uint32_t msec);
    142     virtual status_t setProgressCallbackInterval(uint32_t cbInterval);
    143 
    144     virtual status_t setMediaRenderingMode(M4xVSS_MediaRendering mode,
    145                           M4VIDEOEDITING_VideoFrameSize outputVideoSize);
    146 
    147     virtual status_t resetJniCallbackTimeStamp();
    148     virtual status_t setImageClipProperties(uint32_t width, uint32_t height);
    149     virtual status_t readFirstVideoFrame();
    150     virtual status_t getLastRenderedTimeMs(uint32_t *lastRenderedTimeMs);
    151 
    152     status_t setAudioPlayer(VideoEditorAudioPlayer *audioPlayer);
    153 private:
    154     PreviewPlayer       *mPlayer;
    155     sp<VeAudioOutput>    mVeAudioSink;
    156 
    157     VideoEditorPlayer(const VideoEditorPlayer &);
    158     VideoEditorPlayer &operator=(const VideoEditorPlayer &);
    159 };
    160 
    161 }  // namespace android
    162 
    163 #endif  // ANDROID_VIDEOEDITOR_PLAYER_H
    164