[MEncoder-users] Audio/Video out-of-sync when using the "-noskip -mc 0"

[Tsz Ming WONG]

On 7/7/06, scostas <scostas at det.uvigo.es> wrote:
>
> Tsz Ming WONG wrote:
>
> Hi!
>
> > Consider if I never know the input framerate of the wmv, what are the
> best
> > settings to convert to a wmv to flv ? For example, YouTube allow people
> to
> > upload wmv and convert to flv, different users must have different
> > framerate
> > of wmv files being uploaded, how they tackle this kind of problems?
>
> When using -noskip with mencoder you can have more problems than the
> mismatch with FPS, so I strongly recomend to never use it unless you
> know what are you doing.
>
> > Is that the only solution is not to use "-noskip -mc 0"  and end up with
> > many ugly warnings...?
>
> Well, you can use:
>
>        mencoder -options-you-need | grep -v Skipping
>
> :)
>
> > Btw, anyone know the tools behind YouTube ? Seems Google Video also use
> > mencoder or ffmpeg?
>
> No idea :?
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Originally I thought that we should always use  "-mc 0 and -noskip" in all
the cases (becoz many examples in the web always have this!), however, this
is not true.

according to the manual:


> ....Therefore, you may have to switch to basic A/V sync with the -mc 0
> option, or put this in your ~/.mplayer/mencoder config file, as long as you
> are only working with good sources


&

>
> ...Therefore, using -noskip is not in general recommended.



regards,
ming