查看Android MediaCodec trace的源代码 Android MediaCodec trace 0

* MediaPlayer calling flow
 MediaPlayer mp = new MediaPlayer();
 1.        mp.setDataSource(filePath);
 2.        mp.setDisplay(MediaFrameworkTest.mSurfaceView.getHolder());
 3.        mp.prepare(); //获取和解码媒体数据
 4.        mp.start();
 5.        FillBuffer
 6.        EmptyBuffer

1.  setDataSource(filePath)

    <source lang="c">
<MediaPlayerBase> mPlayer = Create form (playerType of source);
	//      => new NuPlayerDriver(pid) {
				mLooper->setName("NuPlayerDriver Looper")->start(PRIORITY_AUDIO);
				mPlayer = new NuPlayer(pid);
			}
	//绑定Extractor、omx、codec2服务的death监听，
	//mPlayer->setDataSource(dataSource)
</source>
	
2. setDisplay(SurfaceHolder sh)
<source lang="c">
{
   mSurfaceHolder = sh;
   _setVideoSurface(sh.getSurface());-->
   {
       MediaPlayer.cpp {
	  sp<IGraphicBufferProducer> new_st =  surface->getIGraphicBufferProducer();
	  MediaPlayerService mp->setVideoSurfaceTexture(new_st);
       }
       MediaPlayerService::Client::setVideoSurfaceTexture(<IGraphicBufferProducer>& bufferProducer)
       sp<ANativeWindow> anw;
      if (bufferProducer != NULL) {
        anw = new Surface(bufferProducer, true /* controlledByApp */);
        status_t err = native_window_api_connect(anw.get(),
                NATIVE_WINDOW_API_MEDIA);

        p->setVideoSurfaceTexture(bufferProducer);
        mConnectedWindow = anw; //decoder
    }
}

</source>