SAA7134 NTSC scaling > 480 (Re: Flyvideo 3000 slight pumping effect)

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Gert Vervoort wrote:
> 
> > Gunther Mayer wrote:
> >
> > The pumping is only in effect with 2 tv channels (which too have bad
> > reception quality with other bttv cards).
> 
> Sounds like another affect then I'm seeing with fullscreen from S-Video,
> but I will have look monday if this also occurs with my board.
> 

The problem I noticed with fullscreen is something else.
If I connect a NTSC colorbar to the S-video input and upscale to 
fullscreen (xawtv upscales to 768x576 default), I see al kind of strange
dots on the screen. Further investigations showed that this was caused
by the scaler, the scaler doesn't like to scale  NTSC to a vertical 
resolution bigger then 480 and as the default of xawtv is 576 this 
resulted in these problems. 

Gert





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