MediaCodec seekto()后解码播放视频，花屏？

通过　mVideoMediaExtractor.seekTo(mStartTimeStamp, MediaExtractor.SEEK_TO_CLOSEST_SYNC);

之后解码通过SurfaceTexture播放视频，有些时候花屏，如下是本人解决方法：

mVideoMediaExtractor.seekTo(mStartTimeStamp, MediaExtractor.SEEK_TO_CLOSEST_SYNC);

seekto 并不是严格等于期望mStartTimeStamp时间点，只是与之相近，需通过getSampleTime()重设该时间点.

if (mStartTimeStamp > 0) {   

    mVideoMediaExtractor.seekTo(mStartTimeStamp, MediaExtractor.SEEK_TO_CLOSEST_SYNC);

// 避免花屏
long time = mVideoMediaExtractor.getSampleTime();
if (time != -1) {
mStartTimeStamp = time;
}
}
......

boolean doRender = mVideoDecodeBufferInfo.size !=0;

if ((mStartTimeStamp > 0 && currentDecodeTimeStamp < mStartTimeStamp){
    doRender = false;
}

mVideoDecoder.releaseOutputBuffer(videoDecoderBufIndex , doRender) ;