[MPlayer-dev-eng] problems with libmpeg2 + ronin dvd

[D Richard Felker III]

hey, i just noticed the other day that mplayer has significant visual
problems playing the dvd of the movie ronin (us/ntsc version). every
so often it jumps back and shows a much older frame, then goes on
playing as usual, when using -vc mpeg12 (libmpeg2) to decode. with
ffmpeg12 (libavcodec) it works fine, but unfortunately ffmpeg's mpeg2
decoder is too slow for me to use. i suspect this has something to do
with b frames, but i could certainly be mistaken -- could someone take
a look at it? perhaps if libmpeg2 can't decode these frames properly
it should skip them entirely, rather than displaying something
blatently wrong...?

i'm uploading the first ~10 megs to mplayer ftp as
ronin_framejump.vob. this isn't much but it's a plenty to see the
problem manifest.

rich