I had the pleasure recently to create an ffmpeg command to transcode a video into HEVC 10bit with quicksync.
I had tha previously running completely fine on my Nvidia GPU. You would think that it would just be replacing the parameter which device or hardware acceleration to use.
Yeah, turns out that there are like 4 ways to set the quality value of the transcoded output, CRF didn’t work for some reason with quick sync so you need to use global quality or something. I spend days on this trying to figure this out, DAYS.
It is a very powerful tool but every time I have to use it, it is too complicated and I have to spend hours or days to get it working.