Xine

xine (pronounced as "maxine" without the "ma") is a multimedia playback engine for Unix released under the GNU General Public License. It can play CDDA, DVD-Video, and VCD, as well as common computer multimedia formats like AVI, WMV, MOV, MP3, FLAC, Theora, Speex, and Vorbis.

xine is built as a shared library (xine-lib) that supports different frontend player applications. To decode multimedia data xine uses libraries from the FFmpeg project or binary codecs.