fallback from "Use only decoder" mode for NVENC

[Selur]

Found something over at https://github.com/rigaya/NVEnc/blob/mas...ize-string

Those with "○" in nppi64_10.dll use the NPP library, which supports x64 version only. To use those algorithms, you need to download nppi64_10.dll separately and place it in the same folder as NVEncC64.exe.

So to use 'nn', 'npp_linear','cubic','super','lanczos' you have to install the CUDA Toolkit 11.3 (~2.7GB download), the .dll itself is around 100MB.
The old .dlls (nppi64_80.dll and nppc64_80.dll) were bundled with NVEncC when it wasn't hosted on Github, so I never noticed it was missing.
Sadly there is no separate download for those dlls. + Not sure whether their EULA/license allows to ship the dlls without the whole sdk,...

Maybe this use decoder thing can be switched off automatically for streams that can't be decoded by hw in batch mode ?

Not happening, I use it with batch relatively often, but I know what my input formats are.

Cu Selur