About encoding?

[BlurayHD]

Hi people, I have my movie collection and some of this movies I need to encode and I so wish if you can tell me what about in Handbrake if I setup video encoder to 265 10 bits it will take almost 18 hours and if I select 265 10 bits NVENC it will take 2 hours, can you recomend?

Thank You in advance

[Gloster]

I prefer ffmpeg, NVENC leads to HW acceleration, the opinion of ffmpeg about HW encoding : Faster but less good result (check it with vmaf or vivictpp).

First of all what is your intention, best result, high compression, encoding time consumption ... E.g.: 10 Bits leads to greater size.
I use ffmpeg, with the intention to best H.265 results, this is not possible by HW encoding :

ffmpeg -y -i input.ts -map 0:v -map 0:a -vcodec libx265 -crf 16 -preset slow -vf nlmeans="1.4:7:5:3:3",unsharp="3:3:1.0" -c:a copy output.mkv

It will have an encoding speed of 1/10, 1 hour to convert leads to 10 hours encoding.

I use a linux system, I does not recognize the CPU load during normal operation like an input to this page (8 x CPU threads near by 100%), why should I use HW encoding to get bad results (my vmaf score > 99.9).