[MPlayer-users] how to repair an mpeg

[John Brown]

On Fri, 21 Apr 2006 19:12:41 +0200, Rakotomandimby Mihamina wrote:
>
>On Fri, 2006-04-21 at 08:27 -0400, John Brown wrote:
> > What you actually want is that the duplicate frames NOT be dropped.
>
>I suspect them to be the reason of the shift between audio & video. The
>natural wish is to drop them. Am I wrong?
>

I would say that the shifting is due to frames being dropped. Say you have 
10 seconds of video at 25 frames per second, for example, and 10 seconds of 
audio. Let us say that 1/2 of the frames are duplicates. If you drop those, 
you will be left with 5 seconds of video and 10 seconds of audio.  That is 
my theory anyway. The experts will correct me if I'm wrong.

In anycase, the manual says that you must use -vf harddup when generating 
MPEG files.