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Old 06-01-2004, 03:42 AM   #1
Registered: Feb 2003
Location: Barking, Essex, Britain
Distribution: PCLinuxOS and MX-Linux
Posts: 502

Rep: Reputation: 32
Transcode - Video and Audio not in sync

I have a problem in that I am trying to re-code some videos from avi (WMV3) to MPEG-2.

However, when I re mplex them, the video is anything up to a second ahead of the audio. I think that is because, on the original files, the sound starts and then the video fades in from black. I don't know if the problem occurs when creating the *.m2v and *.mpa files, or when multiplexing them back together, but it seems to make little difference whether I use mplex or tcmplex for the task.

I have tried using both the mpeg and the mpeg2enc/mp2enc filters in transcode, I get the same result either way.

avidemux does not work because it does not work with WMV formats above WMV2, and TMPGenc (windows program) cannot read the format either.

A typical line I have tried is:

transcode -i filename.avi -x mplayer,mplayer -y mpeg,mpeg -E 44100 -Fs,3 -b 128 -Z 480x576 -o TEMP
mplex -f 4 -o filename.mpg TEMP.m2v TEMP.mpa

Has anyone else experienced this problem and is there another way?

Last edited by davecs; 06-01-2004 at 03:45 AM.
Old 06-01-2004, 02:52 PM   #2
Registered: Jan 2004
Location: Duesseldorf /Germany
Distribution: Gentoo amd64 / Debian
Posts: 226

Rep: Reputation: 30
I stopped using transcode for exactly these reasons,
I have had better experiences with mplayer/mencoder.

It does have the smae incromprehensibly comandline options, though.


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