nnedi3_rpow2 and nnedi3_resample

[MysteryX]

nnedi3_rpow2 is outdated in vsrepo, it needs to be updated. Also, it would be very beneficial to add a1 and a2 parameters to resample! Otherwise I need to copy the whole function into my own code to add those parameters. There's also no way of specifying the GPU device to use.

nnedi3_resample, on the other hand, uses the slowest nnedi3 implementation, and not nnedi3cl or znedi3. It would need to allow using those more modern libraries, and allow specifying GPU device id. Since it's a much bigger class, copying it into my own code isn't really an option.

Actually -- probably both of these could be in the same updated file. Anyone up for the task?

[ChaosKing]

There is a mode parameter in nnedi3_resample https://github.com/AmusementClub/nnedi3_resample/blob/e79c7028eb8f1bfb471a53edfdd354d9bac17681/nnedi3_resample.py#L436

There's no auto updater for gist.github.com implemented. I think only 1 or 2 scripts are hosted on gist, so not worth implementing it.
nnedi3_rpow2 was updated to rev6 now.

[MysteryX]

ah. I see that nnedi3_resample has a1, a2 and device parameters. It seems to have all the other parameters of nnedi3_rpow2 and can replace it entirely.