[MEncoder-users] AV sync

[Greg Heywood]

Difficult to tell, but I think it starts out wrong and stay's almost
constantly wrong. I also thing that when the file is played, the seconds
value (the amount of time that it has been playing for) is wrong, and it is
crashing the PC occasionally as well.



On 23/09/2007, James Hastings-Trew <jimht at shaw.ca> wrote:
>
> Greg Heywood wrote:
> > On 22/09/2007, James Hastings-Trew <jimht at shaw.ca> wrote:
> >
> >> Mencoder maintains a/v sync by dropping or duplicating frames, usually
> >> at the boundaries of black frames so as not to cause visible stutter.
> >> Try getting rid of the vf=harddup=1 option in your profile and see if
> >> sync improves. This is just a guess on my part as to something to try.
> >>
> >> Thanks. Tried that, and also tried the following (with and without the
> >> harddup option).
> >>
> >> [ivtv2]
> >> tv=norm=0:device=/dev/video0:width=720:height=576
> >>
> pvr=abitrate=192:vbitrate=2200000:vpeak=2600000:fmt=ps:aspect=2:arate=32000
> >> ofps=25
> >> ovc=copy=1
> >> oac=copy=1
> >> vf=harddup=1
> >>
> What kind of sync problem are you having? Does it start out wrong and
> stay wrong at a constant value, or does it start out right and drift
> wrong after a while?
>
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