[MEncoder-users] a-v synchronization problems of some NTSC DVDs with -oac copy

Dominik 'Rathann' Mierzejewski dominik at rangers.eu.org
Sun Apr 24 22:52:45 CEST 2005

On Sunday, 24 April 2005 at 19:29, David Soukal wrote:
> Hello,
> I have recently ran into A-V synchronization problems while encoding
> some NTSC DVDs. I looked at the mailing list archive and found very
> similar symptoms in a thread by Corey Hickey on March 15th ("a-v sync
> problems with pullup, softskip (only on some DVDs)"). I have studied the
> answers but I was unable to fix the problem. It seems that the problem
> was a bug in the code that has been fixed. But I didn't find a reference
> to the version of MPlayer that has the bug fixed. I'm using version
> 1.0pre6 compiled from sources on a Gentoo system (For Gentoo users: I
> had to recompile MPlayer recently with the dts flag to get FFMPEG
> support again.)
> To reiterate the problems. I have noticed a short sync delay (of order
> of ms) with some DVDs that I converted while there was no sync problem
> with other DVDs. All the DVDs are in the NTSC format. The original DVDs
> show no sync problems, of course.
> The problematic DVDs are stored progressive with exception of a couple
> of short scenes with telecined content. I used the following command
> line for the encoding:
> mencoder -vf pullup=2:2:4:4,softskip,crop=704:368:8:60 -ofps 23.976 -oac
>  copy -ovc xvid -xvidencopts pass=1:${xvidencopts} -o movie.avi

Try -ofps 24000/1001 and see if it helps.

MPlayer RPMs maintainer: http://rpm.greysector.net/mplayer/
"I am Grey. I stand between the candle and the star. We are Grey.
 We stand between the darkness ... and the light."
        -- Delenn in Grey Council in Babylon 5:"Babylon Squared"

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