YUV-RGB data range conversions

If you want to convert from RGB or YUV inputs to YUV or RGB outputs, the expected behavior depends on the input data range:

Input	Input	Input	Input	Output	Output	Output	Output	Operation
data	format	RGB	nominal	RGB	nominal	format	data
range		range	range	range	range		range
0-255	YUV	N/A	2	N/A	2	YUV	0-255	None
16-235	YUV	N/A	1	N/A	1	YUV	16-235	None
16-235	YUV	N/A	1	N/A	2	YUV	0-255	Scale
0-255	YUV	N/A	2	N/A	1	YUV	16-235	Scale
0-255	RGB	0	N/A	N/A	1	YUV	16-235	RGBtoYUV
0-255	RGB	0	N/A	N/A	2	YUV	0-255	RGBtoYUV
16-235	YUV	N/A	1	0	N/A	RGB	0-255	YUVtoRGB
0-255	YUV	N/A	2	0	N/A	RGB	0-255	YUVtoRGB

In this case the "nominal range" is the constant value from the DXVAHDDDI_NOMINAL_RANGE enumeration.

See YUV format ranges in Windows 8.1 for definitions of YUV format ranges.