Re: No signal detection

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Marilen Corciovei wrote:
> 
> Hi, i'm new to this list and want to ask what it might be seem to as a
> dumm question.
> Is there any way to detect a "no signal" on a bttv card? I'm using
> VIDIOCMCAPTURE-...SYNC ops to capture data from my bttv card and it
> works fine except when there is no cam i still capture blue images.
> Any sugestions?

  The blue images are generated in software, so they are ABSOLUTELY
blue, and always the same blue.

  What I have done in the past is grab a screenshot, and compare it
to a known screenshot of a blue screen. The files will be bit for
bit the same.

-- 
Trevor Boicey, P. Eng.
Ottawa, Canada, tboicey@xxxxxxx
ICQ #17432933 http://www.brit.ca/~tboicey/
"Clown college.... pfffft... can't eat that..." - Homer Simpson





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