【FFMpeg】视频播放时前几秒只有声音没有视频

命运之手发布时间：2021-07-03 11:01:30 ，浏览量：0

具体原因不清楚，个人猜测可能是以下个原因

AVFormatContext刚开始工作时不稳定，可能会丢失开始的画面
SurfaceView刚开始工作时不稳定，可能没有绘制开始的画面
网络数据比AVFormatContext解码开始得早，导致丢掉最早的关键帧，所以后面的参照帧也跟着失效
和seek的计算方式有关系，seek有好几种模式，有的模式可能导致跳过当前帧

虽然具体原因不确定，但是围绕这几个猜测，还是把问题解决了

我的想法是，既然是刚开始工作不稳定，那就等初始化完成后，再回滚到0重新播放就是了

解决办法就是在prepare和start执行完毕后，再seek到0进度即可


	//进度跳转
	void FFMpeg::seek(int second) {
	    std::cout


    
        
        
        
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