It is in the current beta build (Announcement).
Settings → Transcoder → Hardware transcoding device.
Burning subtitles is single threaded. So, for that task, higher single core Passmark ratings are preferred over multiple cores.
I’ve an i5-10500T/Ubuntu and it has no problem burning subtitles into 1080p video (single core = 2308).
The Celeron J3455 in my NAS fails miserably at the same task (single core = 809).
I’m not sure what is required for burning subtitles into 4K media.
Intro Detection uses the CPU to analyze audio tracks. It is also single threaded.
Credit Detection uses the CPU to analyze the video track. I do not know if it is single or multi-threaded. When the feature was first introduced, there were several posts about it maxing out the server CPU.
Intro and Credit detection will take a long time to churn through large libraries. Both can be scheduled as part of Scheduled Tasks, so it can occur during off hours if desired.
