Deoldify Vapoursynth filter

[Selur]

I'm pretty sure that this is not Qt related, but that vsViewer does not properly clean the Vapoursynth environment.
using something like:

# Imports
import vapoursynth as vs
# getting Vapoursynth core
import ctypes
import sys
import os
core = vs.core
# Import scripts folder
scriptPath = 'F:/Hybrid/64bit/vsscripts'
sys.path.insert(0, os.path.abspath(scriptPath))
# Loading Support Files
Dllref = ctypes.windll.LoadLibrary("F:/Hybrid/64bit/vsfilters/Support/libfftw3f-3.dll")
# loading plugins
core.std.LoadPlugin(path="F:/Hybrid/64bit/vsfilters/Support/libsangnom.dll")
core.std.LoadPlugin(path="F:/Hybrid/64bit/vsfilters/Support/EEDI2.dll")
core.std.LoadPlugin(path="F:/Hybrid/64bit/vsfilters/SharpenFilter/AWarpSharp2/libawarpsharp2.dll")
core.std.LoadPlugin(path="F:/Hybrid/64bit/vsfilters/DebandFilter/Neof3kdb/neo-f3kdb.dll")
core.std.LoadPlugin(path="F:/Hybrid/64bit/vsfilters/DenoiseFilter/TTempSmooth/TTempSmooth.dll")
core.std.LoadPlugin(path="F:/Hybrid/64bit/vsfilters/Support/DCTFilter.dll")
core.std.LoadPlugin(path="F:/Hybrid/64bit/vsfilters/DeblockFilter/Deblock/Deblock.dll")
core.std.LoadPlugin(path="F:/Hybrid/64bit/vsfilters/DenoiseFilter/FFT3DFilter/fft3dfilter.dll")
core.std.LoadPlugin(path="F:/Hybrid/64bit/vsfilters/DenoiseFilter/CTMF/CTMF.dll")
core.std.LoadPlugin(path="F:/Hybrid/64bit/vsfilters/Support/libmvtools_sf_em64t.dll")
core.std.LoadPlugin(path="F:/Hybrid/64bit/vsfilters/Support/TCanny.dll")
core.std.LoadPlugin(path="F:/Hybrid/64bit/vsfilters/DenoiseFilter/FluxSmooth/libfluxsmooth.dll")
core.std.LoadPlugin(path="F:/Hybrid/64bit/vsfilters/DerainbowFilter/BiFrost/libbifrost.dll")
core.std.LoadPlugin(path="F:/Hybrid/64bit/vsfilters/Support/DePan.dll")
core.std.LoadPlugin(path="F:/Hybrid/64bit/vsfilters/GrainFilter/RemoveGrain/RemoveGrainVS.dll")
core.std.LoadPlugin(path="F:/Hybrid/64bit/vsfilters/GrainFilter/AddGrain/AddGrain.dll")
core.std.LoadPlugin(path="F:/Hybrid/64bit/vsfilters/DenoiseFilter/DFTTest/DFTTest.dll")
core.std.LoadPlugin(path="F:/Hybrid/64bit/vsfilters/DenoiseFilter/NEO_FFT3DFilter/neo-fft3d.dll")
core.std.LoadPlugin(path="F:/Hybrid/64bit/vsfilters/Support/EEDI3m.dll")
core.std.LoadPlugin(path="F:/Hybrid/64bit/vsfilters/ResizeFilter/nnedi3/vsznedi3.dll")
core.std.LoadPlugin(path="F:/Hybrid/64bit/vsfilters/Support/libmvtools.dll")
core.std.LoadPlugin(path="F:/Hybrid/64bit/vsfilters/Support/scenechange.dll")
core.std.LoadPlugin(path="F:/Hybrid/64bit/vsfilters/Support/fmtconv.dll")
core.std.LoadPlugin(path="F:/Hybrid/64bit/vsfilters/MiscFilter/MiscFilters/MiscFilters.dll")
core.std.LoadPlugin(path="F:/Hybrid/64bit/vsfilters/DeinterlaceFilter/Bwdif/Bwdif.dll")
core.std.LoadPlugin(path="F:/Hybrid/64bit/vsfilters/DerainbowFilter/DeCross/libdecross.dll")
core.std.LoadPlugin(path="F:/Hybrid/64bit/vsfilters/SourceFilter/d2vSource/DGDecode.dll")
# Import scripts
import mvsfunc
import muvsfunc
import G41Fun
import lostfunc
import adjust
import havsfunc
import validate
# Source: 'C:\Users\Selur\Desktop\Sample\Sample.mpg'
# Current color space: YUV420P8, bit depth: 8, resolution: 720x480, frame rate: 29.97fps, scanorder: top field first, yuv luminance scale: limited, matrix: 470bg
# Loading C:\Users\Selur\Desktop\Sample\Sample.mpg using DGDecode
clip = core.dgdecode.MPEG2Source("J:/tmp/mpg_65ef6c100374fd10d8d2d894338abe7e_853323747.d2v",info=3)# 29.97 fps, scanorder: top field first
frame = clip.get_frame(0)
# Setting detected color matrix (470bg).
clip = core.std.SetFrameProps(clip=clip, _Matrix=5)
# setting color transfer (170), if it is not set.
if validate.transferIsInvalid(clip):
  clip = core.std.SetFrameProps(clip=clip, _Transfer=6)
# setting color primaries info (to 470), if it is not set.
if validate.primariesIsInvalid(clip):
  clip = core.std.SetFrameProps(clip=clip, _Primaries=5)
# setting color range to TV (limited) range.
clip = core.std.SetFrameProps(clip=clip, _ColorRange=1)
# 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=2) # tff
# rainbow removal using DeCross
clip = core.decross.DeCross(clip=clip)
# Deinterlacing using QTGMC
clip = havsfunc.QTGMC(Input=clip, Preset="Fast", TFF=True) # new fps: 29.97
# Making sure content is preceived as frame based
clip = core.std.SetFrameProps(clip=clip, _FieldBased=0) # progressive
clip = clip[::2] # selecting previously even frames
# adjusting color using Tweak
clip = adjust.Tweak(clip=clip, hue=0.01, sat=1.00, cont=1.00, coring=True)
# Fixing chroma bleeding using FixChromaBleedingMod
clip = havsfunc.FixChromaBleedingMod(input=clip)
clip = havsfunc.Vinverse(clp=clip)
# stabilizing using Stab
clip = lostfunc.Stab(clp=clip,range=0,mirror=15)
# rainbow removal using BiFrost
clip = core.bifrost.Bifrost(clip=clip, variation=3, interlaced=False)
# removing grain using STPresso
clip = havsfunc.STPresso(clp=clip, planes=[0])
# removing grain using TemporalDegrain2
clip = G41Fun.TemporalDegrain2(clip=clip, degrainPlane=4, meAlgPar=False, postFFT=0, fftThreads=1)
# denoising using MCTemporalDenoise
clip = havsfunc.MCTemporalDenoise(i=clip, settings="medium", ncpu=1)
# debanding using f3kdb
clip = core.neo_f3kdb.Deband(clip, y=44, cb=44, cr=44, grainy=34, grainc=44, dither_algo=2, keep_tv_range=True, output_depth=8)
# sharpening using AWarpSharp2
clip = core.warp.AWarpSharp2(clip=clip, thresh=64, blur=2, chroma=True, planes=[1,2])
clip = muvsfunc.BlindDeHalo3(clip, strength=25, sharpness=0.01, interlaced=False)
# deringing using HQDeringmod
clip = havsfunc.HQDeringmod(clip, nrmode=2, darkthr=3.0)
# line darkening using Toon
clip = havsfunc.Toon(input=clip,str=0.25)
# applying anti aliasing using santiag
clip = havsfunc.santiag(c=clip, nns=3, pscrn=2, aa=34)
# adding Grain using AddGrain
clip = core.grain.Add(clip=clip, var=0.00, uvar=0.30, constant=True)
# adjusting output color from: YUV420P8 to YUV420P10 for NVEncModel
clip = core.resize.Bicubic(clip=clip, format=vs.YUV420P10, range_s="limited")
# set output frame rate to 29.97fps (progressive)
clip = core.std.AssumeFPS(clip=clip, fpsnum=30000, fpsden=1001)
# output
clip.set_output()

each reload eats ~450MB additional RAM (I never noticed it since a. I got 64GB RAM b. I refuently close my Preview window c. don't refresh settings)

Cu Selur

Ps.: TemporalDegrain2 with extraSharp=True from G41Fun.py also crashes.