real time video + gtk

[Fabrice Chinjoie <fabrice chinjoie csiro au>]

Hello,
I would like to make an application with gtk with real time video.
I want to capture frame with my camera and display it on a gtk windows.
This task should be fast and not using too much CPU. Does anyone ever 
tried something like this?
Is SDL better for this kind of application and, if yes, how to 
incorporate the SDL into GTK....
Thank you all for your answers.
Regards.