[jitter] jit.qt.grab FPS limitation ? / Guppy camera on OSX

Hello,

Do you know if there is a framerate limitation in jit.qt.grab due to  
QuickTime, and what could be the method to bypass it ?

We are working with an AVT Guppy camera with Jitter on OSX. The cam  
is made for 640 x 480 @60fps (tests with the XP driver) but  
jit.qt.grab (and probably QT) blocks it around 25~30fps. The message  
"framerate xx" does nothing.

Has anybody ever experienced this problem and/or this cam ?

Thanks in advance,

Thierry Fournier
http://www.thierryfournier.net