https://github.com/Bilibili/ijkplayer/blob/master/init-ios.sh
http://ffmpeg.org/index.html#news
https://github.com/FFmpeg/FFmpeg
https://github.com/Bilibili/ijkplayer/blob/master/init-ios.sh
http://ffmpeg.org/index.html#news
https://github.com/FFmpeg/FFmpeg