xvidcore

Xvid is an open-source research project focusing on video compression and is a
collaborative development effort. All code is released under the terms of the
GNU GPL license. The Xvid video codec implements MPEG-4 Simple Profile and
Advanced Simple Profile standards. It permits compressing and decompressing
digital video in order to reduce the required bandwidth of video data for
transmission over computer networks or efficient storage on CDs or DVDs. Due to
its unrivalled quality Xvid has gained great popularity and is used in many
other GPLed applications, like e.g. Transcode, MEncoder, MPlayer, Xine and many
more.