
implement YUV420P grabbing to support pwc driver
how to recognize pwc webcams:

IsPhilips = FALSE;
   if (ioctl(cam_fd, VIDIOCGCAP, &vcap) < 0)
     return;
   if (sscanf(vcap.name, "Philips %d webcam", &type) < 1) {
     /* No match yet; try the PROBE */
     if (ioctl(cam_fd, VIDIOCPWCPROBE, &probe) == 0)
       if (!strcmp(vcap.name == probe.name))
         IsPhilips = TRUE;
   }
   else
     IsPhilips = TRUE;


and some other ideas i'd love to find the time to realize or at least to
write about in this TODO file

