FFmpeg学习笔记-API理解
av_compare_ts:在音视频流复用(MUX)的时候比较时间戳,根据时间戳的先后顺序交叉写入音频包或视频包/** * Compare two timestamps each in its own time base. * * @return One of the following values: * - -1 if `ts_a` is befor