All code in this subfolder uses libraries from the FFmpeg project under the LGPLv2.1

FFmpeg is a complete, cross-platform solution to record, convert and stream audio and video. 
It includes libavcodec - the leading audio/video codec library. 
See the documentation for a complete feature list and the Changelog for recent changes.

http://en.wikipedia.org/wiki/FFmpeg
http://ffmpeg.org/

FFmpeg is used by many free (and proprietary) projects, 
including VLC, MPlayer, HandBrake, Plex, Blender, Google Chrome, YouTube, Facebook, ffmpeg2theora, and others.