[XviD-devel] user-data id like divx and ffmpeg?

Michael Niedermayer xvid-devel@xvid.org
Sat, 12 Oct 2002 21:35:30 +0200


Hi

divx5 and ffmpeg do add a userdata packet to each keyframe which contains the 
version & build numbers ("DivX%db%d" and "FFmpeg%sb%s"), these are very 
usefull to workaround encoder bugs, which sadly are much more common than 
they should be

why doesnt xvid add such a thing to all keyframes?, iam asking because iam 
currently rewriting the error resilience code in ffmpeg and for that the 
correct padding is a nice indicator if some error near the end has happened, 
and some old xvid versions had the padding wrong (AFIAK its correct now, but 
i didnt check) anyway iam not completly sure how to autodetect that ...

Michael