Deoldify Vapoursynth filter

[Selur]

using:

"F:\Hybrid\64bit\Vapoursynth\vspipe.exe" "J:\tmp\encodingTempSynthSkript_2024-03-01@20_35_55_0010_0.vpy" g:\test.y4m -c y4m

and looking at the start of the y4m shows no issues and the file is playable. (and contains deoldify output)
Hmm,...

F:\Hybrid\64bit\Vapoursynth>"F:\Hybrid\64bit\Vapoursynth\vspipe.exe" --filter-time "J:\tmp\encodingTempSynthSkript_2024-03-01@20_35_55_0010_0.vpy" - -c y4m | "F:\Hybrid\64bit\NVEncC.exe" --y4m -i - --fps 25.000 --codec av1 --sar 1:1 --output-depth 10 --vbr 0 --vbr-quality 23.00 --aq --aq-strength 5 --aq-temporal --gop-len 0 --ref 7 --multiref-l0 3 --multiref-l1 3 --bframes 3 --bref-mode auto --mv-precision Q-pel --preset quality --colorrange limited --colormatrix bt470bg --cuda-schedule sync --output "J:\tmp\test_1_2024-03-01@20_35_55_0010_02.av1"
--------------------------------------------------------------------------------
J:\tmp\test_1_2024-03-01@20_35_55_0010_02.av1
--------------------------------------------------------------------------------

Information: Note: NumExpr detected 32 cores but "NUMEXPR_MAX_THREADS" not set, so enforcing safe limit of 8.
Information: NumExpr defaulting to 8 threads.
y4m: failed to parse y4m header.
failed to initialize file reader(s).
Failed to open input file.
Warning: F:\Hybrid\64bit\Vapoursynth\Lib\site-packages\torchvision\models\_utils.py:223: UserWarning: Arguments other than a weight enum or `None` for 'weights' are deprecated since 0.13 and may be removed in the future. The current behavior is equivalent to passing `weights=ResNet101_Weights.IMAGENET1K_V1`. You can also use `weights=ResNet101_Weights.DEFAULT` to get the most up-to-date weights.
  warnings.warn(msg)

Warning: F:\Hybrid\64bit\Vapoursynth\Lib\site-packages\torch\nn\utils\weight_norm.py:30: UserWarning: torch.nn.utils.weight_norm is deprecated in favor of torch.nn.utils.parametrizations.weight_norm.
  warnings.warn("torch.nn.utils.weight_norm is deprecated in favor of torch.nn.utils.parametrizations.weight_norm.")

Error: fwrite() call failed when writing frame: 0, plane: 0, errno: 22
Output 33 frames in 4.14 seconds (7.97 fps)
Filtername           Filter mode   Time (%)   Time (s)
ModifyFrame          parreq          99.88       4.14
Bicubic              parallel         0.56       0.02
LWLibavSource        unordered        0.44       0.02
Bicubic              parallel         0.24       0.01
SetFrameProps        parallel         0.00       0.00
SetFrameProp         parallel         0.00       0.00
AssumeFPS            parallel         0.00       0.00
SetFrameProp         parallel         0.00       0.00
AssumeFPS            parallel         0.00       0.00

the

Error: fwrite() call failed when writing frame: 0, plane: 0, errno: 22

is probably the issue,..

limiting the Vapoursynth cores with 'core.num_threads = 1' doesn't help either