Marco Nie - ffmpeg
https://blog.niekun.net/tag/ffmpeg/
ffmpeg build from source
https://blog.niekun.net/archives/891.html
2020-02-09T20:27:00+08:00https://trac.ffmpeg.org/wiki/CompilationGuide/UbuntuUbuntu 14.04add ppa：https://launchpad.net/~mc3man/+archive/ubuntu/trusty-media