Slow transcoding intel N5095

[superGoby]

Hello, recently i got an intel n5095 mini pc and installed ubuntu sever 24. I followed the guide on how to activate hardware acceleration and it works fine but the problem is the transcoding is very slow. i wait 1s to watch 2s and sometimes i wait even more.

i use quick sync ( i tried VAAPI too and got the same results) and i'm not using tone mapping
here is the transcoding logs: (attached the full log below)

Code:

Stream mapping:
  Stream #0:0 -> #0:0 (hevc (native) -> h264 (h264_qsv))
  Stream #0:1 -> #0:1 (aac (native) -> aac (libfdk_aac))

Also when i check intel_gpu_top i see the video in the gpu at 70/80% and also the cpu are at 100%

is this a hardware limit? or am I missing something?

[TheDreadPirate]

It is transcoding faster than real time, so the issue is either client side or with the network speed. What client are you using?

[superGoby]

Thank you for responding, i'm using jellyfin on the browser

[TheDreadPirate]

Are you using the same PC you are running Jellyfin on as the client?

[superGoby]

No i'm not, i installed jellyfin on my mini pc (not using docker) and i access it through the local IP on my browser

[TheDreadPirate]

Can you do speed tests on both the server and client? The video in question is transcoding at over 100fps for a 24fps video. So the limitation is 1) the server can't serve the files fast enough due to resource starvation, 2) the server has a slow or inconsistent network connection, even though the video has a pretty low bit rate, or 3) the client has a slow or inconsistent network connection.

[superGoby]

Hello again, Thank you for the reply, indeed the transcoding is working fine as you said i even tested it by throttling the transcoding and i see the cpu goes back to idle and the video still buffering. it is a network issue apparently