Semi-successful Bayer-mode capture from internal camera

[Carol Lerche]

>From this resource:
http://www.quickcamteam.net/documentation/how-to/how-to-enable-raw-streaming-on-logitech-webcams

If Bayer images are captured in any resolution lower than the maximum
resolution supported by the sensor, clipping occurs. For example, if
the sensor supports 1280x960 and a 960x720 image is recorded, the
frame will appear clipped at the right and lower borders.