Resolve cube reader fails on new VIDEO_RANGE tags

[thebaggins]

Recently DaVinci Resolve added the following keyworks to their .cube spec. LUT_IN_VIDEO_RANGE LUT_OUT_VIDEO_RANGE With the following description:

• In Resolve, LUTs are applied in data range (0.0 to 1.0). The input data is in data range, and the LUT is expected to output in data range. However, there may be LUTs that are designed to operate on and/or output video range data (64 - 940 in 10-bit scale). To handle these cases, there are two properties which can be used to notify Resolve that the input/output is in video range. Based on this, Resolve will handle the input/output values so that it works correctly in a data range processing pipeline. Depending on the LUT, one or both of these properties can be specified by having the keywords below on a new line.

Using OpenColorIO 2.3.0dev OpenColorIO Error: The specified transform file ...... At line (11): 'LUT_IN_VIDEO_RANGE'. Malformed color triples specified.

The actual spec for DaVinci .cube in included with the Resolve installation. File location depends on the platform but is found under the developer info. DaVinci Resolve/Developer/LUT/README.txt