[BUG] SVT-AV1 not working with vapoursynth inputs (Arch Linux)

[Selur]

So the problem seems to be the vpy file not being generated.

According to the log it was created and clean up later.

Created skript /tmp/2025-02-25@15_50_50_1010/encodingTempSynthSkript_2025-02-25@15_50_50_1010_0.vpy:
---------------------
# Imports
import vapoursynth as vs
# getting Vapoursynth core
import sys
import os
core = vs.core
# Import scripts folder
scriptPath = '/usr/lib/python3.12/site-packages/'
sys.path.insert(0, os.path.abspath(scriptPath))
# Import scripts
import havsfunc
import validate
# Source: '/run/media/inky/vhs antigo/VHS/0-2001.mpg'
# Current color space: YUV420P8, bit depth: 8, resolution: 720x480, frame rate: 29.97fps, scanorder: top field first, yuv luminance scale: limited, matrix: 470bg, transfer: bt.470 system m, primaries: bt.470 system m, format: mpeg-2
# Loading /run/media/inky/vhs antigo/VHS/0-2001.mpg using D2VSource
clip = core.d2v.Source(input="/tmp/2025-02-25@15_50_50_1010/2025-02-25@15_50_50_1010.d2v")
frame = clip.get_frame(0)
# setting color matrix to 470bg.
clip = core.std.SetFrameProps(clip, _Matrix=vs.MATRIX_BT470_BG)
# setting color transfer (vs.TRANSFER_BT470_BG), if it is not set.
if validate.transferIsInvalid(clip):
  clip = core.std.SetFrameProps(clip=clip, _Transfer=vs.TRANSFER_BT470_BG)
# setting color primaries info (to vs.PRIMARIES_BT470_BG), if it is not set.
if validate.primariesIsInvalid(clip):
  clip = core.std.SetFrameProps(clip=clip, _Primaries=vs.PRIMARIES_BT470_BG)
# setting color range to TV (limited) range.
clip = core.std.SetFrameProps(clip=clip, _ColorRange=vs.RANGE_LIMITED)
# making sure frame rate is set to 29.97fps
clip = core.std.AssumeFPS(clip=clip, fpsnum=30000, fpsden=1001)
# making sure the detected scan type is set (detected: top field first)
clip = core.std.SetFrameProps(clip=clip, _FieldBased=vs.FIELD_TOP) # tff
# Deinterlacing using QTGMC
clip = havsfunc.QTGMC(Input=clip, Preset="Medium", TFF=True) # new fps: 59.94
# Making sure content is preceived as frame based
clip = core.std.SetFrameProps(clip=clip, _FieldBased=vs.FIELD_PROGRESSIVE) # progressive
# adjusting output color from: YUV420P8 to YUV420P10 for SvtAv1Model
clip = core.resize.Bicubic(clip=clip, format=vs.YUV420P10, range_s="limited")
# set output frame rate to 59.94fps (progressive)
clip = core.std.AssumeFPS(clip=clip, fpsnum=60000, fpsden=1001)
# output
clip.set_output()
---------------------

2025.02.25 - 15:50:52_Arch Linux (64bit)_2024.12.21.1 - level 9: 2025-02-25@15_50_50_1010_04_cleanUp: "/tmp/2025-02-25@15_50_50_1010/encodingTempSynthSkript_2025-02-25@15_50_50_1010_0.vpy"
2025.02.25 - 15:50:52_Arch Linux (64bit)_2024.12.21.1 - level 9: JobHandler subjobFinished 2025-02-25@15_50_50_1010_04_cleanUp finished,..

The vapoursynth preview doesn't works because there is no package for vsPreview.

vsViewer code is available over at https://github.com/Selur/vsViewer. Since there are other Arch users out there, someone can probably help.

Yes, both the SVT-AV1 implementations work just fine in FFMPEG.

FFmpeg uses the library not SvtAv1EncApp.

Cu Selur