[MPlayer-users] 1 duplicate frames every 308 seconds :-\

[Jon Fairbairn]

On 2005-06-30 at 17:56EDT Rich Felker wrote:
> On Thu, Jun 30, 2005 at 08:23:43PM +0200, Alain Barthélemy wrote:
> > Here is my script:
> > 
> > mencoder -tv driver=v4l:width=720:height=576 -ovc lavc -lavcopts
> > vcodec=mpeg4:vbitrate=2200:vratetol=32000:mbd=2:psnr:aspect=4/3 -oac
> > mp3lame -lameopts cbr:br=128:mode=0 -vf
> > crop=672:528:24:24,pp=lb,scale=576:432,hqdn3d=3:2:5 -sws 1 -noodml tv://
> > -o temp1.avi -endpos 6600
> > 
> > I just installed MPlayer-1.0pre7 and I have now:
> > 1 duplicate frame(s) every (exactly!) 308 seconds
> > 
> > I did not have that with MPlayer-1.0pre6a with the same script.
> > 
> > What can now happen every 308 seconds?
> 
> Because your soundcard's clock sucks and is off such that
> the error accumulates to a whole frame every 308
> seconds...

Why would mencoder do anything with the soundcard?

-- 
Jón Fairbairn                              Jon.Fairbairn at cl.cam.ac.uk