libxine1-ffmpeg 1.1.19-2ubuntu2 (amd64 binary) in ubuntu natty

 This package contains plugins for the xine video/media player engine,
 which are necessary to decode MPEG-based codecs. Among them, this package
 includes the ffmpeg input plugin for xine, which enables xine-based
 players a large variety of modern audio and video codecs.
 .
 You most probably want to install this package. It is required if you want
 to watch DVDs or digital TV using any xine-based player.