Is there any extra license key required to set NVENC acceleration up? I faced the error below when was trying to use NVIDIA Geforce GTX 680.
"File: nvenc/src/CNVEncoder.cpp, Line: 1424, nvEncOpenEncodeSessionEx() returned with error 21
Note: GUID key may be invalid or incorrect. Recommend to upgrade your drivers and obtain a new key
NVENC error at nvenc/src/CNVEncoder.cpp:1426 code=21(NVENC Feature not available for current license key type) "nvStatus"