Viewing a recorded event 4K 20FPS the processor can't handle it, it's loaded at 105%

[IgorA100]

Is it possible to make "nph-zms" work in several threads?

[connortechnology]

Depends on ffmpeg. We can pass a threads parameter to the decoder but it's hard to say if it will be honored or will help

[connortechnology]

I'm another branch i have vaapi or other hwaccel support for event playback

[IgorA100]

We can pass a threads parameter to the decoder

Oh, right!
You mean "-threads 0"?
I tried to run ffmpeg in the command line with the parameter "-threads 0" to transcode the file and all cores started to be used.
0 - probably not correct, it is better to limit it to 2 threads.

i have vaapi or other hwaccel support for event playback
I was less lucky. I did not install the GPU. Although it is probably worth trying this option.

[IgorA100]

We can pass a threads parameter to the decoder but it's hard to say if it will be honored or will help

Have you tried this?
It should work.