[FFmpeg-devel] [PATCH v2] avcodec/tiff: add limited support for ReferenceBlackWhite and YCbCrCoefficients tags

[Skakov Pavel]

>> Add support for properly handling PC/TV ranges and Rec601/Rec709 color spaces.
> Can't this be implemented without using floats?

AVRationals are not a good idea as those values are unsigned and often use full unsigned range.
Here is slightly different approach: range check for fractional rationals and exact check for integer expected values.
Warning text is probably better left with floats as they provide the most meaningful values for end user.
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