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3.3.8.3.1 Color Conversion

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The forward transformation from ARGB to AYUV is based on full-range BT.709 ([ITU-BT.709-5] section 4) and is described by the following two formulas:

A = A 

The resultant Y, U, and V components MUST be clamped to the range 0...255 inclusive.

The reverse transformation from AYUV to ARGB is described by the following two formulas:

A = A

The resultant R, G, and B components MUST be clamped to the range 0...255 inclusive.