Poor Jellyfin transcoding performance

[cfp90]

I installed xpenology on a HP Elitedesk G3 with i5 7500, 16GB of RAM. Everything works great but the Jellyfin app is having problems transcoding 4K videos. No matter of the settings used, it won't transcode more than 20 fps. I use the DS918+ image and HW transcoding is enabled(ls /dev/dri : card0  renderD128). Is there anything I'm missing? Thanks in advance!

[Orphée]

1 minute ago, cfp90 said:

I installed xpenology on a HP Elitedesk G3 with i5 7500, 16GB of RAM. Everything works great but the Jellyfin app is having problems transcoding 4K videos. No matter of the settings used, it won't transcode more than 20 fps. I use the DS918+ image and HW transcoding is enabled(ls /dev/dri : card0  renderD128). Is there anything I'm missing? Thanks in advance!

check your CPU usage while transcoding. if it raises 100% then HW transcoding does not work.

 

[cfp90]

The CPU usage sits at 40% while transcoding

[Orphée]

Check JellyFin FFmpeg logs, you should catch if HW is used or not.

 

Edit : did you actually enabled HW transcoding in JellyFin options ?

Edited March 17 by Orphée

[cfp90]

9 minutes ago, Orphée said:

Check JellyFin FFmpeg logs, you should catch if HW is used or not.

 

Edit : did you actually enabled HW transcoding in JellyFin options ?

Yes, I enabled QSV. I also attached a log.

videos121c0aae-7cbe-9b3d-af27-eed23.txt