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

David Soukal david.soukal at binghamton.edu
Wed Apr 27 01:27:35 CEST 2005

Dominik 'Rathann' Mierzejewski wrote:
> On Sunday, 24 April 2005 at 19:29, David Soukal wrote:
>>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.

Nope, it didn't help either :(

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