[HELP] libplacebo (tonemapping) crashes...

[Selur]

# Imports
import vapoursynth as vs
# getting Vapoursynth core
import sys
import os
core = vs.core
# Import scripts folder
scriptPath = 'F:/Hybrid/64bit/vsscripts'
sys.path.insert(0, os.path.abspath(scriptPath))
# loading plugins
core.std.LoadPlugin(path="F:/Hybrid/64bit/vsfilters/Support/libvs_placebo.dll")
core.std.LoadPlugin(path="F:/Hybrid/64bit/vsfilters/SourceFilter/DGDecNV/DGDecodeNV.dll")
# Import scripts
import validate
# Source: 'G:\TestClips&Co\files\HDR\HDR10\4K sun HDR test.mp4'
# Current color space: YUV420P10, bit depth: 10, resolution: 3840x2160, frame rate: 25fps, scanorder: progressive, yuv luminance scale: limited, matrix: 2020ncl, transfer: smpte2084, primaries: bt.2020, format: HEVC
# Loading G:\TestClips&Co\files\HDR\HDR10\4K sun HDR test.mp4 using DGSource
clip = core.dgdecodenv.DGSource("J:/tmp/mp4_103cd4c1d7cbc771969218d2162207ff_853323747.dgi")# 25 fps, scanorder: progressive
frame = clip.get_frame(0)
# setting color matrix to 2020ncl.
clip = core.std.SetFrameProps(clip, _Matrix=vs.MATRIX_BT2020_NCL)
# setting color transfer (vs.TRANSFER_ST2084), if it is not set.
if validate.transferIsInvalid(clip):
  clip = core.std.SetFrameProps(clip=clip, _Transfer=vs.TRANSFER_ST2084)
# setting color primaries info (to vs.PRIMARIES_BT2020), if it is not set.
if validate.primariesIsInvalid(clip):
  clip = core.std.SetFrameProps(clip=clip, _Primaries=vs.PRIMARIES_BT2020)
# setting color range to TV (limited) range.
clip = core.std.SetFrameProps(clip=clip, _ColorRange=vs.RANGE_LIMITED)
# making sure frame rate is set to 25fps
clip = core.std.AssumeFPS(clip=clip, fpsnum=25, fpsden=1)
# making sure the detected scan type is set (detected: progressive)
clip = core.std.SetFrameProps(clip=clip, _FieldBased=vs.FIELD_PROGRESSIVE) # progressive
# adjusting color space from YUV420P16 to YUV444P16 for vsToneMapPlacebo
clip = core.resize.Bicubic(clip=clip, format=vs.YUV444P16, range_s="limited")
# color adjustment using ToneMap (Placebo)
clip = core.placebo.Tonemap(clip=clip, src_csp=1, dst_csp=0, src_min=0.0050, src_max=1000.0000, dst_min=0.2023, dst_max=203.0000, dynamic_peak_detection=1, tone_mapping_param=0.000)
# adjusting output color from: YUV444P16 to YUV420P10 for NVEncModel
clip = core.resize.Bicubic(clip=clip, format=vs.YUV420P10, range_s="limited", dither_type="error_diffusion")
# set output frame rate to 25fps (progressive)
clip = core.std.AssumeFPS(clip=clip, fpsnum=25, fpsden=1)
# output
clip.set_output()

works fine here.
Since you didn't share any details, I have no way to reproduce this.
In Hybrid, you could open the Vapoursynth Preview to check whether the script itself works. If it does not, it should show an error.
If you can reproduce the crash you could create a debug output, which contains details, like what the used script looks like, what Hybrid version you used, what parameters you used,....

Is Windows 11 maybe required? I am under Win 10.

No.

Virtualdub crashes with a memory problem in libplacebo.

Not knowing anything about your setup, it might be that some other filter is autoloaded because of a Python/Vapoursynth setup which autoloads something that is causing problems. Could be a memory issue. Could be some overclocking or similar. Could be a bug in libplacebo. Could be some overactive virus scanner.
Could be a gpu driver issue.

I am out of options.

Read the sticky, provide proper details that allow to reproduce the issue.
Also share details about your system. (What CPU are you using? Any virus scanner running? Any media player or other software using the gpu running? Any tuning tools running? Is the system overclocked.)
Does this only happen with this source, or also with others?

The bug tracker over at https://github.com/Lypheo/vs-placebo/issues doesn't list any known memory issues.

=> sorry, without details I can do nothing more than guessing.

Cu Selur