https://blog.csdn.net/qq_41494464/article/details/88664507 ffmpeg -i input.mp4 -strict -2 output.mp4
chrome无法播放MP4的解决方案 2020-12-01 https://blog.csdn.net/qq_41494464/article/details/88664507 ffmpeg -i input.mp4 -strict -2 output.mp4