Question about setting option on Marlin IIDC camera

[Anders Holm]

Hi,

I am beginner at low-level SG programming so please bear with me.

At Lyyn (www.lyyn.com) we're doing some interesting (at least we  
think so) image processing.
All our lab-work is done on Mac OS X and up until now with DV cameras.
We are currently evaluating a Marlin F-033C camera  
(www.alliedvisiontec.com).

This camera apparently has the capability of passing an RGB image  
instead of an YUV image.
This is very interesting to us since, according to the Shark  
optimizer from Apple, approx 20% of our applications processing time  
is spent in converting from YUV to RGB.
Our application is basically an adaptation of various Apple supplied  
examples (mostly the Cocoa - SGDataProc example).

So what's the problem then?

How do I convince the camera to change video modes and video format?
Or rather, does anyone out there have simple example code of doing this.

My problem is that I don't really understand the documentation from  
Apple (IIDC info) etc.
In fact I'm not sure that I even know what the right question is.

I've searched with Google, I've read all posts on this list...

I believe that I should use an IIDC Feature/Settings Atom (documented  
in the new features of Quicktime 6.4) but I'm not sure.

I would greatly appreciate pointers to helpful information.

BTW, the camera works with the IOXperts driver and Apple's original  
IIDC driver.

Thanks in advance.

Anders Holm
Lyyn  AB
Ideon Innovation
Ideon Science Park
SE-223 70 Lund
Sweden