Re: multiple open()'s on the same device

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Am Die, 2003-07-22 um 21.42 schrieb Lucas Correia Villa Real:
> I have seen some posts (as you said) arguing about the image color being a 
> problem on switches, resulting in dropped frames, but I can't understand why.
> Isn't this just a matter or saving/restoring the hue, contrast, saturation and 
> brightness adjust registers? When you speak about fluxuation, shouldn't the 
> restoration of these registers' values take effect immediately, avoiding 
> frame dropping?

It is an issue because if the sources run unsynchronized, the grabber
has to recalibrate it's black-reference level if the input changes. 
This has nothing to do with the register settings ( they do not change
). 

 -Arne




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