[ATrpms-users] Re: Transcode+ffmpeg producing out of sync audio
mikepery at fscked.org
Thu Sep 8 01:13:24 CEST 2005
Thus spake Mike Perry (mikepery at fscked.org):
> Using transcode-1.0.0-18.rhfc4.at and
> ffmpeg-0.4.9-10_cvs20050612.rhfc4.at, I'm getting out of sync audio on
> both xvid4 and ffmpeg/mpeg4 streams. I'm using the perl-Video-DVDRip
> package to call transcode for me.
> It's about a half-second mismatch in sync, most easily noticable when
> observing dialog. The audio is leading the video. It seems to get
> slightly worse the further you get into the avi.
Ok, I've done a considerable amount of testing, and no matter what I
try the sync issue persists. I've tried doing 1400mb, 128kbps mp3, and
have also tried using the official Windows DivX player on a different
computer to play the avi to rule out mplayer (and also tried mplayer's
-noaspect flag to prevent rescaling). I've also tried a couple of
different movies, all to the same effect. I've also tried changing
--accel 3dnow to --accel mmx. Nothing seems to fix the sync issue.
Is there a lack of replies because no one else is having this problem,
or because no one else on atrpms is using dvdrip/transcode? Am I the
first one to successfully get transcode/dvdrip to run properly? I did
have one heck of a time fighting dependencies between the repos...
If someone is able to transcode vob files without an audio sync
delay, could you please paste your transcode command so I could give
it a shot?
Mad Computer Scientist
fscked.org evil labs
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