[HELP] FFmpeg x264 not fully utilizing the CPU

[antoniu200]

mkv with cover = mkv file which container an image that most players will display if there isn't a video stream.
see: https://www.matroska.org/technical/attachments.html

Tried it and it is indeed a very efficient way of doing this. It's not accepted, however, by YouTube, where these videos would get uploaded to.

-c:v libx264 -x264opts  ....

https://ffmpeg.org/ffmpeg-codecs.html#Options-31

Didn't work. Also tried using "-x264-params"; that didn't work either. So it's probably the lack of things to process in my case.

Thank you for helping me speed up the process! It will definitely improve the time taken for the workloads to finish by quite a margin, even without the threads.