While there still is no official release of FFmpeg, committed to their SVN repository last night was support for several new formats. FFmpeg has picked up a QCELP/PureVoice speech decoder, floating point PCM decoder and encoder, Nellymoser ASAO encoder, Electronic Arts TGQ decoder, Speex decoding via libspeex, MXF muxer, E-AC-3 support, and a RealVideo 4.0 decoder.
FFmpeg is a popular open-source project that supports audio/video encoding and decoding with numerous codecs. FFmpeg is used by other open-source projects, such as MPlayer
To checkout the new support in FFmpeg, information is available here
on its SVN repository and Git mirror.