Posted by Xerxes Rånby on
URL: https://forum.jogamp.org/How-to-use-GLMediaPlayer-FFMPEG-tp4026567p4026597.html

It is possible that libavformat is not included into fedora for legal issues.
JogAmp itself only use the system installed libav/ffmpeg librarys untill the legal situation is cleared up.

How are MPlayer, FFmpeg, VLC, libav*, etc connected?
libav is a fork of ffmpeg "mainly to get rid of the old maintainer dictatorship"
http://blog.pkh.me/p/13-the-ffmpeg-libav-situation.html