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

[Kichigai Mentat]

On Jul 1, 2005, at 00.01, The Wanderer wrote:

> 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...
>>
>
> How is that consistent with the phenomenon not having occurred in the
> earlier version? Was there some sort of (perhaps inadvertent)
> compensation which has since been removed?
I'm wondering... perhaps MEncoder is detecting frames that are  
similar to each other, such as with something like telecine? Or does  
MEncoder not even look at the frame like that?
>
> -- 
>       The Wanderer
>
> Warning: Simply because I argue an issue does not mean I agree with  
> any
> side of it.
>
> A government exists to serve its citizens, not to control them.
>
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