Quote:
Originally Posted by jlw_4049
This program doesn't accept UHD files as an input?
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This is just a GUI front-end. It "accepts" whatever Avisynth or VapourSynth script as input that you load
The actual question, IMO, is whether Avisynth or VapourSynth and the particular filters (especially the source filter) that you are using properly support “UHD” material, i.e. 4K resolution + High Dynamic Range (HDR).
I think "classic" Avisynth is out of scope here, as it was 8-Bit only and development is pretty much dead, AFAIK.
But VapourSynth should work fine, as it has supported "high bit-depth" color formats ever since. Maybe Avisynth+ can be made to work too, as it is supposed to add more color formats (including 10, 12, 14 and 16 bits) to Avisynth.
The next big question is, how the encoders, i.e. x264 or x265, deal with “UHD” input. My experience on that field is limited, but you will probably have to use some sort of "tone mapping", if you want to encode as SHD.