Скачать или смотреть Setting up VapourSynth and QTGMC

This tutorial will show you how to set up VapourSynth and QTGMC easily, as well as how to put together a basic script and get started. Of course, the world of VapourSynth scripting is big, and we avoid going into too much depth.

VapourSynth, by the programmer Fredrik Mellbin, is a scripting frame-server and something of a successor to AviSynth. With it, one can write scripts, processing video in various ways and piping to one's encoding application. The benefit lies in its powerful plug-ins: anime encoders, for instance, often use VapourSynth to filter sources before encoding, removing banding, artefacts, etc. QTGMC, ported from AviSynth by HolyWu, is considered the best deinterlacer, but is not available in FFmpeg and can be hard to set up.

00:00 Setting up VapourSynth
01:34 Installing plug-ins
03:27 Downloading FFmpeg
05:22 Creating VapourSynth script
09:16 Creating encoding batch file
11:53 Encoding
12:32 Summary
12:49 Tutorial code

https://github.com/vapoursynth/vapour...
https://www.gyan.dev/ffmpeg/builds/
http://avisynth.nl/index.php/QTGMC

Thumbnail uses "Purple and Blue Light Digital Wallpaper" by Tuesday Temptation:
https://www.pexels.com/photo/purple-a...

install.bat
python vsrepo.py -p update
python vsrepo.py -p -s "vs-scripts" install lsmas havsfunc vsutil

script.vpy
from vapoursynth import core
import havsfunc as havs
clip = core.lsmas.LWLibavSource(r'INPUT.mkv')
clip = havs.QTGMC(clip, Preset='Slower', FPSDivisor=1, TFF=True)
clip.set_output()

vs.bat
"ENTER VAPOURSYNTH FULL PATH\vspipe" -c y4m script.vpy - | ffmpeg -i - -c:v libx264 -crf 18 "OUTPUT.mp4"

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