Hi I need to clip images with a bttv chipset framegrabber card. Since the only way i can read images is with mmap'ing the buffer, i need to set clipping parameters with this method. However using the VIDIOCSWIN ioctl doesnt work in this case, and im thus unable to set the clipping rectangles. Is there any way to do this with mmap io, and is it possible for me to simply read images with bt848 cards without going through the mmap interface? Thanks Abheek
