I have tried that but sadly it hasnt worked out either!! Anybody out there with any other idea!
The strangest thing is that although the ioctl call returns -1 ( with invalid arguments in perror) it still sets the contrast, brightness and hue to ZERO. I have to go to xawtv next time around and improve these values before my own program can run. (Note: i continue to run the prog even when the ioctl fails and the picture is clearly being shown with excellent frame rate and resolution). regards Affan Ahmed --- Mark McClelland <[EMAIL PROTECTED]> wrote: > Affan Ahmed wrote: > > >Hello, > > I have the ov511 driver installed on a RH7.2 linux. I have been > able > >to succesfully loop back the captured images of my HawkEye UC310 > >camera. > > How ever when ever i want to set the brightness or contrast or > depth > >of the capture picture it always is returning -1. I am appending a > >portion of the code for clarification > > > > struct video_picture pic; > > > > pic.palette = VIDEO_PALETTE_YUV420; > > pic.depth = 24; > > > <snip> > > I think the problem is that VIDEO_PALETTE_YUV420 doesn't correspond > to a > depth of 24. The depth should be set to 12. > > Incidentally, does anybody know why the "depth" field exists? Is it > for > unusual formats, e.g. YUV 4:2:0 with 4 bits of Y and 2 bits of UV per > > pixel? It just seems like needless complication of the API to me. > > -- > Mark McClelland > [EMAIL PROTECTED] > > __________________________________________________ Do you Yahoo!? Faith Hill - Exclusive Performances, Videos & More http://faith.yahoo.com ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
