Questions on VIDIOC_QUERYCTRL

Hi All

Can you please tell briefly the meaning of the control parameters beyond
V4L2_CID_PRIVATE_BASE when running a VIDIOC_QUERYCTRL on a Bt8x8?
It gives info like "Low colour removal", "Luma Coring", "RGB error
diffusion", etc. that I'm not sure if I can use.

Thanks

Ricardo