libtheora: libtheora (Theora video codec library)
libtheora:
libtheora: Theora is Xiph.Org's first publicly released video codec, intended
libtheora: for use within the Foundation's Ogg multimedia streaming system.
libtheora:
libtheora: The Theora bitstream format was frozen after the alpha3 release. This
libtheora: means that files produced by the alpha3 encoder will always be
libtheora: playable according to the Theora I specification.  Traditionally
libtheora: alpha means a proof of concept, not a production-ready release. 
libtheora: However the code is very robust, ready for and indeed in general use.
libtheora: