xine is a free gpl-licensed video player for unix-like systems.
We support mpeg-2 and mpeg-1 system (audio + video multiplexed) streams,
mpeg elementary streams (audio/video only, e.g. mp3 files) and
AVI files (using win32 codec dlls).

These are the libraries for the xine.

WWW: http://xine.sourceforge.net/