- theora: reference encoder/decoder library: svn, official releases.
- theora-oil: branch with liboil calls: svn [UNMANTEINED].
- theora-exp: experimental encoder/decoder library, supporting the whole spec and having also MMX optimizations for decoding: svn.
- Cortado: a GPL Java decoders for Ogg Theora, Ogg Vorbis and other codecs. Embedding this applet on your website you can give viewers access to streams from either the Flumotion streaming server or play a local file from your server without the need for a locally installed media player supporting the correct formats on the visitors computer.
- ffmpeg (only vp3 features, mmx, sse2 optimisations).