Accessing parameters of TemporalDegrain2 in Hybrid

[Selur]

Hybrid aborts the process consistently when I try using the AviSynth version,

You didn't care to share a debug output or the error message the Avisynth Preview produces, so nothing I can say about that.

The TemporalDegrain2 documentation lists only 11 parameters that may be used to control the results: ... No other parameters should be touched.

*gig* That is the beauty of it. Personally, I don't use most of these, but those that should not be touched.


The Avisynth TemporalDegrain2 version that Hybrid uses has this signature:

function TemporalDegrain2 ( clip input, int "degrainTR", int "grainLevel", bool "grainLevelSetup", int "degrainPlane", int "postFFT", float "postSigma", int "postDither", int "fftThreads", int "postTR", int "postMix", int "postPlane", int "postBlkSz", int "meAlg", int "meAlgPar", int "meSubpel", int "meBlksz", bool "meTM", bool "meChroma", int "limitFFT", float "limitSigma", int "limitBlksz", int "devId", float "ppSAD1", float "ppSAD2", float "ppSCD1", int "thSCD2", int "DCT", float "gaussParam", bool "extraSharp", int "outputStage", bool "debug", bool "CUDA", string "dftsfile", int "postFFTc", float "postSigmaC", bool "degrainChromaTwoStep", bool "degrainAvoidChromaShift")

see: Hybrid/64bit/TemporalDegrain2.avsi on your system.
So all your options are present.
Aside from

• grainLevelSetup
  
• postMix
  
• postSigmaC
  

all are available in the gui.
The Vapoursynth version has this signature:

def TemporalDegrain2(clip, degrainTR=1, degrainPlane=4, grainLevel=2, grainLevelSetup=False, meAlg=4, meAlgPar=None, meSubpel=None, meBlksz=None, meTM=False,
limitSigma=None, limitBlksz=None, fftThreads=None, postFFT=0, postTR=1, postSigma=1, postMix=0, postBlkSize=None, knlDevId=0, ppSAD1=None, ppSAD2=None,
ppSCD1=None, thSCD2=128, DCT=0, SubPelInterp=2, SrchClipPP=None, GlobalMotion=True, ChromaMotion=True, rec=False, extraSharp=False, outputStage=2, neo=True)

Vapoursynth version does not have 'postDither', 'postMix', 'postSigmaC' options and 'outputStage' is not supported in the gui. (hope I didn't miss anything)
If you know a better port of TemporalDegrain2 to Vapoursynth let me know and I may add support for it in Hybrid.

As a workaround, is it possible to specify the TemporalDegrain2 filter for Vapoursynth in Hybrid directly, i.e. by replacing the automatic call with in Hybrid with something like "TemporalDegrain2 (degrainTR=1, grainLevel=0, postFFT=1, postSigma=0, outputStage=1, postMix=25)"?

No. You can't replace or modify the generated code. I might could add a 'additions'-option or something like that, which would allow you to add additional parameters, some time in the future.
You can however:
a. use the 'Custom'-section to add your own code where you could call TemporalDegrain2 with whatever paramters you like.
b. you could add your own 'Custom script/filter additions' to the gui. read: Custom script/filter additions? and look inside the Hybrid/CustomSynthScripts for some examples that are included this way in the gui.

Cu Selur

Ps.: If you want help to fix the Avisynth issue, read the sticky and provide a debug output of you calling Avisynth Preview with your settings, this should produce an error and include the script in the debug output.