NVEncC is not working with latest drivers properly

[Mimo]

Version packed with Hybrid distribution package is not working with the latest drivers for NVIDIA - mode "Use encoder only" is crashing.
This seems to be fixed in NVEncC version 5.42.

[Selur]

Thanks for the info.

[Selur]

From the looks of it your encoding fails since Vapoursynth fails, which is probably since you didn't deinstall Hybrid and reinstalled the new version while updating from a Hybrid version which used Vapoursynth with API3 to the current Vapoursynt that uses API4.
In case you did deinstall Hybrid before installing the current version check the Vapoursynth Preview to see where the problem is with the script.

Cu Selur

[Selur]

Okay, so the issue it that LibavSMASHSource can't open/decode the source file.
When you disable 'Filtering->Vapoursynth->Misc->Source->Prefer LSMashSource over LWLibAVSource for mp4/mov' Hybrid should try using 'LWLibAVSource' instead and if you also disable ''Filtering->Vapoursynth->Misc->Source->Prefer LWLibAVSource over FFMpegSource2' Hybrid will use ffms2.
If none of these work than either your input file is in a format not supported by libav, it's borken or for something is hindering the source filter to open the file.

Cu Selur

[Selur]

Which one did?

[Selur]

Happy tha worked out and yes QTGMC 'very slow' is slow and using open cl accellaration is often more about freeing some cpu ressources than speeding up things a lot.

Cu Selur