Deoldify Vapoursynth filter

[Selur]

In the second case, has been specified DeepExMethod=1, which implies "HAVC + RF same as video", but not reference frame directory has been provided.

No.
First I used:

clip = HAVC_main(clip=clip, EnableDeepEx=True, DeepExRefMerge=0, ScFrameDir="J:/tmp", DeepExModel=0, DeepExEncMode=0, DeepExMaxMemFrames=0)

which worked fine. 'ScFrameDir' is only added since you wanted it to be always there.

Then I used:

clip = HAVC_main(clip=clip, EnableDeepEx=True, DeepExMethod=1, DeepExRefMerge=0, ScFrameDir="J:/tmp", DeepExModel=0, DeepExEncMode=0, DeepExMaxMemFrames=0)

"HAVC + RF same as video": DeepExMethod=1 + ScFrameDir="J:/tmp"
and DeOlddify complained about

HAVC_deepex: no reference frames found in 'J:/tmp', allowed format is: ref_nnnnnn.[png|jpg]

When I removed ScFrameDir="J:/tmp" from the call, DeOldify complains about:

HAVC_deepex: method != 0 but sc_framedir is unset

Maybe I misunderstood 'DeepExMethod=1', but shouldn't it create the reference images itself?
So complaining about the format seems wrong.

Cu Selur