[QLab] Can a DV Camera be a display?

Christopher Ashworth Chris at chrisashworth.org
Tue Jan 9 20:15:25 PST 2007


On Jan 9, 2007, at 1:26 PM, Michael Keniger wrote:

> if you had a DV cam/convertor could QLab access this as a video  
> device for output (rather than a screen out)?  I would imagine  
> there would be a fairly high overhead if the source video was not  
> DV format in any case.

That's a great question.  I don't know the answer for sure, because I  
don't know how those devices are characterized.

I'll therefore give you the nitty gritty answer in the meantime, so  
you can at least feel like I've partially answered the question.  :D

Video Cues get a list of all active displays.  So what's a display?   
I'll refer you to the documentation:

"In Quartz, the term display refers to a graphics hardware system  
consisting of a framebuffer, a color correction (gamma) table or  
color palette, and possibly an attached monitor. If no monitor is  
attached, a display is characterized as offline."

I have no experience with DV cameras or converters, so I have no idea  
if they are represented in the system as a display (as defined above).

-CA


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