Hello Michael,

some ideas:

- it seems a rather old Air, so maybe it has an intel graphics chip with bugs. 
What graphic hardware is it?

- Maybe you can make it work with an externe composition and Syphon 
server/client-plugin's ( http://syphon.v002.info )? Create a QC that renders 
your complete side-by-side view in on texture (with "Render in Image" patch) 
and send this image into a Syphon Server. Run this composition in 
QuartzComposer in the background. Create a second composition that has the 
Syphon Client in it to receive that image and billboard it. Use this 
composition in Keynote. Syphon just pushes a texture from one OpenGL context to 
another and therefore you don't have to use the video plugins in Keynote.

best,

Achim Breidenbach
Boinx Software Ltd.


On 18.09.2012, at 04:24, Michael Sime wrote:

> so awhile back, doe to the agust members of this group, I learned about the 
> 'safevideo' plugin that allowed me to take a qtz. file that basically showed 
> a full-screen live image from a input device (canopus, XLR8, matrox) make a 
> quicktime movie that I could drop into keynote & play, showing the live video 
> in a keynote presentation
> 
> I've done this several times since, with much success, on a couple movies & 
> TV shows (think faking a live skype chat)
> 
> anyway, today I had something funky happen...
> 
> I was handed a MacbookAIR (which I must use) to do this gag with....I 
> installed quartz & got a new xlr8 XtraView dongle....after some messing 
> about, I got qtz to see the XtraView and make a quicktime...the quicktime 
> plays fine, showing the video I'm now pumping into the dongle
> 
> when I drop it into Keynote, it shows us, will play while in 'build' 
> mode...BUT the second I hit 'play' on the keynote (to go full screen), the 
> video blanks out
> 
> HOWEVER, if I make ANOTEHR qtz, with the facetime camera as the source, and 
> put that in the keynote & hit play, THAT shows up!...which is great, except I 
> need to have the video coming INTO the Air so it can be the other half of our 
> fake video chat!
> 
> tried dropping the qtz into keynote...same thing....even made a qtz with both 
> the USB video AND the facetime displayed...plays fine in QT, shows up in 
> keynote & plays while in build mode, but as soon as I hit play on the 
> keynote, the USB input video goes blank, leaving me with just the facetime 
> feed
> 
> pleasepleasepleaseplease, won't someone take pity on this poor soul & tell me 
> I somehow missed the User Brightness Knob somewhere & that there's a fix for 
> this?
> 
> btw, the AIR is a C2D running 10.6.8
> 
> many thanks in advance
> 
> M
> ---------------------------------------------------------------
> Michael Sime      <[email protected]>
> Video Schmideo!  <www.videoschmideo.com>
> Visual Alchemy, LLC <www.visualalchemy.tv>
> ---------------------------------------------------------------
> It's not the time it takes to take the takes,
> it's the time it takes BETWEEN the takes,
> that takes the time to take the takes.
> ---------------------------------------------------------------
> 
> 
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