Mp4Provider.java 文件源码

@Override
public Point open(SurfaceTexture surface) {
    try {
        if(!extractMedia()){
            return new Point(0,0);
        }
        mFrameSem=new Semaphore(0);
        mDecodeSem=new Semaphore(1);
        videoProvideEndFlag=false;
        isUserWantToStop=false;
        mAudioEncodeTrack=mStore.addTrack(mExtractor.getTrackFormat(mAudioDecodeTrack));
        MediaFormat format=mExtractor.getTrackFormat(mVideoDecodeTrack);
        mVideoDecoder = MediaCodec.createDecoderByType(format.getString(MediaFormat.KEY_MIME));
        mVideoDecoder.configure(format,new Surface(surface),null,0);
        mVideoDecoder.start();
        startDecodeThread();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return mVideoSize;
}