It's using opencl and who knows what that is doing?
If you have Avisynth+ installed you could use my CUDA DGHDRtoSDR() filter and play the script in your player (if it supports that), or transcode by opening the script with your encoder.
EDIT: Oops, you are on linux.
Last edited by videoh; 9th May 2020 at 16:40.
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