Which version of H263 does libavcodec support?
I'm looking for H263 2000 (v3/H263++) support, but I can't verify anywhere that that's what being supported.
Since FFmpeg official documentation (libavcodec is part of ffmpeg) states that only these versions of H263 are supported:
I think it would be a fair shot to presume that H263++ isn't supported by libavcodec (the official docs don't include it). To be 100% sure, I'd check it traditional way - download libavcodec and try to use it with a sample H263++ video ;)
BTW - I think this question belongs to superuser.