NVEncC -vpy

[Dan64]

I'll look at it after work.
(--vpy-mt isn't mentioned in https://github.com/rigaya/NVEnc/blob/mas...ions.en.md)

Rigaya forgot to add it in the documentation, see: https://github.com/rigaya/NVEnc/issues/591

Dan

P.S.
The new dev version with "--vpy-mt" support is working.

EDIT: Rigaya said that she forgot to remove from the documentation of QSVEnc, she is not sure the "--vpy-mt" is always working.