YCbCr 4:2:2 Data over 8bit depth

[koshiji]

How Can I treat YCbCr 4:2:2 10 or 16 bit depth Data at ImageMagick ?
if depth = 8bit , uyvy coder and yuv coder (with sampling-factor option) can treat data,
but each coder treats only 8bit depth data.

YCbCr coder treats over 8bit depth data, but it cannot understand sampling-factor option.

I use ImageMagick Version 6.4.x