Do you want a cropped 320x240 or a scaled down 320*240 video? If cropped, then 
S_CROP should let you specify the origin and width and height as 320x240. But 
if you want a scaled down version, you should capture full resolution video 
from the capture driver and then use resizer to scale it down to 320x240.

________________________________
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of baxkstreet
Sent: Monday, November 17, 2008 6:01 AM
To: [email protected]
Subject: how to capture arbitrary size video by v4l2 on DM6446


HI, all

  I want to capture 320*240 UYVY formate video.the problem i met is that the 
capture buffer length is always 882746(768*576*2,UYVY format).i had tried to 
change the crop or v4l2_format parameters ,but it doesn't work,the system seems 
to ignore my setting.can anyone tell me a simple correct way to do it right?

thanks!




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