YUV image display

[Bharat Singh GUSAIN <bharat gusain st com>]

hi all, 
i am new to GTK and is currently working on a webcam application developed in 
GTK for which i need some nice gui frontend and need to display the yuyv image 
formats also.
but gtk only display images in rgb format.
can anybody tell me that whether there is any calls in GTK which can display 
the yuv images.

Thanx in advance
Bharat