[MPlayer-dev-eng] Copy audio broken in MEncoder

Reimar Döffinger Reimar.Doeffinger at gmx.de
Mon Apr 14 23:32:59 CEST 2014


On Mon, Apr 14, 2014 at 10:55:20PM +0200, Grozdan wrote:
> On Mon, Apr 14, 2014 at 10:50 PM, Reimar Döffinger
> <Reimar.Doeffinger at gmx.de> wrote:
> > On Sun, Apr 13, 2014 at 10:34:36PM +0200, Grozdan wrote:
> >> On Sun, Apr 13, 2014 at 10:29 PM, compn <tempn at twmi.rr.com> wrote:
> >> > On Sun, 13 Apr 2014 15:16:11 +0200
> >> > Grozdan <neutrino8 at gmail.com> wrote:
> >> >
> >> >> Copying audio with -oac copy is broken in MEncoder. It duplicates
> >> >> frames like crazy and the result is a desync between the video and
> >> >> audio. Can this be fixed, please?
> >> >
> >> > it would be helpful if you gave us an example of what codec and
> >> > container are failing. what command line you used etc.
> >>
> >> Just the basics. Any input will do
> >>
> >> mencoder <infile> -ovc xvid -xvidencopts bitrate=3000 -oac copy -o output.avi
> >>
> >> tested with different codecs in the input (ac3, mp3, dts) and behavior
> >> is the same. Encoding with a different video codec such as x264 does
> >> not make a difference.
> >>
> >> In fact, this problem has been around for almost a year
> >
> > Not reproducible for me with any of the input files I have and
> > either of -ovc lavc or -ovc copy.
> 
> I'm a bit confused. You are copying the video while I was talking
> about copying the audio with -oac copy.

Of course I used -oac copy. But I don't have xvid here, so I replaced
that one with something else, that's why I only mentioned -ovc.


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