HDR10 to SDR

[Selur]

[colormatrix @ 0x119b3c0] [Eval @ 0x7fff3cf4d820] Undefined constant or missing '(' in 'bt2020'
[colormatrix @ 0x119b3c0] Unable to parse option value "bt2020"
[colormatrix @ 0x119b3c0] [Eval @ 0x7fff3cf4d870] Undefined constant or missing '(' in 'bt2020'
[colormatrix @ 0x119b3c0] Unable to parse option value "bt2020"
[colormatrix @ 0x119b3c0] Error setting option src to value bt2020.
[Parsed_colormatrix_0 @ 0x16ab6c0] Error applying options to the filter.
[AVFilterGraph @ 0x1108fc0] Error initializing filter 'colormatrix' with args 'bt2020:bt709'

seems like bt2020 is the problem with colormatrix,... should be 'Rec.2020'

-> I can reproduce the issue, will fix it tomorrow and send you a link to a dev version tomorrow

Cu Selur