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avisynth filter + madVR

just take this - https://github.com/wis/mpvSockets - and that's it

вот для примера:

14:48:28.348 []: Media: video 720x464 [PAR 1.422] at 25.000 fps
14:48:28.348 []: Media: codec type is AVC, YUV/4:2:0/8 bits
14:48:28.355 []: Transcoder: Frame server (64-bit) C:\Program Files (x86)\SVP 4\mpv64\vapoursynth.dll
14:48:28.355 []: Transcoder: resulting video frame 720x464
....
а в логе кодировщика:

14:48:33.669: Command line: C:\Program Files (x86)\SVP 4\mpv64\mpv.exe D:/share/test video/Дни Затмения [1988]_sample.mkv --o=D:/tmp/Дни Затмения [1988]_sample.SVP.temporary.mkv --no-audio --no-sub --no-sub-auto --input-ipc-server=mpvencodepipe --input-media-keys=no --no-msg-color --vf=vapoursynth:[C:\Users\chain\AppData\Roaming\SVP4\scripts\ffff.py]:4:16,format=dar=2.20474 --of=matroska --ovc=h264_nvenc --ovcopts=b=3223155,preset=slow,profile=high,rc=vbr,maxrate=4190102,bufsize=6446310,time_base=1000/71875,threads=16

720 * 1.422 / 464 = 2.205

из 25 совершенно точно получится не 59.94, а 60
сделать можно что угодно, но делать именно 59.94 из 25 - плохая идея

dunno
the "Avisynth Filter" installer script sets all the registry values on installation/update
and I just checked - it really does

> Maybe the moves to Nvof 2.0

"nvof 2.0" was added in 445.87

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I have 460.79 on my laptop with gtx 2060, never seen this error too

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dunno, I can't reproduce this with 460.89 neither on a 2060/laptop nor 2070/desktop

most likely you don't have python 3.8 installed
libsvptube.so depends on python 3.8

halo is the most common artifact for any motion interpolation, you can't get rid of it with "increase bitrate and change encoders"
you can only play with the manual SVP interpolation options to get a result that looks good enough for you
there're numerous topics on this problem within this forum - use search

> are those sliders only valid during realtime playing?

yep, it always selects the highest quality in transcoding mode

try Avisynth Filter instead of ffdshow, it works much better when seeking
https://www.svp-team.com/wiki/Avisynth_Filter_(AVSF)

the thing is if the source video has a bitrate X and you re-encode it with the same bitrate X - you won't get the same visual quality as the source

> Anyway, so how can I achieve 4px with 4K HDR content?

I think it's more CPU-related

> Or it doesn't matter which RTX videocard because they all perform the same with Optical Flow?

yep