VSEdit - cuFFT issue

[Cary Knoop]

When a script using vs-dfttest2 with the cuFFT backend is reloaded in VSEdit (or when closing the editor), VapourSynth throws:

setVideoInfo: The VSVideoFormat pointer passed by DFTTest was not obtained from registerFormat() or getFormatPreset()

Conditions

Happens only on script reload or editor exit, not during normal encoding.

Only occurs when DFTTest2() is used with Backend.cuFFT().

The crash occurs even if the clip formats are unchanged and all processing is valid.

Any throughts?

[WolframRhodium]

I'm sorry. What's the cideo format of the source?

[Cary Knoop]

Originally Posted by WolframRhodium

I'm sorry. What's the cideo format of the source?

Source is a float 32 GRAY plane.

[WolframRhodium]

Sorry but I can't reproduce the issue.

[Cary Knoop]

I tried this but that did not make the problem go away:

try:
    from dfttest2 import DFTTest as DFTTest2, Backend
    
    # Create once, reuse forever
    _DFTTEST_BACKEND = None
    def get_dfttest_backend():
        global _DFTTEST_BACKEND
        if _DFTTEST_BACKEND is None:
            _DFTTEST_BACKEND = Backend.cuFFT(device_id=0, in_place=True)
        return _DFTTEST_BACKEND
    
    _DFTTEST_BACKEND = get_dfttest_backend()
except ImportError:
    raise RuntimeError("PMOyster Error: dfttest2 not found.")

[WolframRhodium]

This is expected because the Python code doesn't change the logic at the underlying C API level.