[vdr] RGB/PAL over VGA at variable frame rate

Pasi Kärkkäinen pasik at iki.fi
Thu Jul 24 13:29:15 CEST 2008


On Thu, Jul 24, 2008 at 09:02:50PM +1000, Torgeir Veimo wrote:
> 
> On 24 Jul 2008, at 20:49, Pasi Kärkkäinen wrote:
> 
> >>> Hmm.. can you explain what "increase/decrease Xservers frame rate"  
> >>> means?
> >>
> >> you simply adjust the time between two vertical blanking (retrace)  
> >> intervals
> >> to your needs.
> 
> > Hmm.. I still don't understand why you need to do this in the first  
> > place?
> 
> 
> It is to avoid the output framerate drifting away from the DVB-T/S/C  
> input framerate.
> 

Oh, now I got it.. and it makes sense :) You can't really control the DVB
stream you receive so you need to sync the output.

There shouldn't be this kind of problems with streams from local files (DVD
for example)..

-- Pasi



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