this post was submitted on 29 Jan 2024
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Hello fellow selfhosters! I reformatted my USB hard drive from exFAT to XFS because I needed a filesystem that could handle hardlinks. I remounted the hard drive and now jellyfin webUI has a severe stuttering problem on some videos, all of them are MKV but it may be a coincidence. On android (using exoplayer) the same files works smoothly. what could be the problem?
in the logs I get a bunch of Slow HTTP Response from http://fedoraserver:8096/ to 192.168.1.30 in 0:00:07.4635856 with Status Code 200

OT: while looking at the logs this happened

SOLUTION: I enabled hardware acceleration, and manually selected also the HEVC and Allow encoding in HEVC format settings, and now the stutter disappeared! thanks to everyone for your help!!!

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[–] [email protected] 2 points 9 months ago (5 children)
[–] [email protected] 4 points 9 months ago (1 children)

I had the same issue, I used tdarr to re encode to h264 mp4

[–] [email protected] 3 points 9 months ago (1 children)

I do the same. I just have it do a transcode job every Sunday.

[–] [email protected] 1 points 9 months ago

Yeah it's a great little set and forget kinda deal.

[–] [email protected] 4 points 9 months ago (1 children)

i had this problem. i fixed it with a faster machine. same os, same files. more cpu worked.

[–] [email protected] 2 points 9 months ago (2 children)

You mean a new sever or a new client?

[–] [email protected] 2 points 9 months ago (1 children)

server. it was choking on decoding

[–] [email protected] 2 points 9 months ago* (last edited 9 months ago) (1 children)

But I know of people running jellyfin on a raspberry, I have an old laptop but it's not that old... There'srno way to run it smoothly?

[–] [email protected] 0 points 9 months ago

yeah, re-encode to a lighter encoding like 264. might be slightly larger, but less work for the cpu

[–] [email protected] 5 points 9 months ago* (last edited 9 months ago) (1 children)

not OC, but i ended up redownloading whatever was x265 and replacing it with 264 or anything else.

also the 1060 in my NAS can do NVENC encoding. that helped a lot with compatibility.

[–] [email protected] 2 points 9 months ago (1 children)

You can also use something like handbrake to convert everything to 264 instead of redownloading everything. You can also set it up to convert after items are downloaded.

[–] [email protected] 2 points 9 months ago (2 children)

Does jellyfish not transcode on the fly?

[–] [email protected] 2 points 9 months ago* (last edited 9 months ago)

It can but it's the server hardware that decides your performance, you can just avoid transcoder on the fly and have h264 mp4 and can run JF on a toaster smoothly.

[–] [email protected] 2 points 9 months ago

Yes, but if the server isn't fast enough to do it, then you're going to have a bad time.

[–] [email protected] 3 points 9 months ago (1 children)

I did not really solve it. I looked around for a bit but found no good solution. The only thing that sort of worked was to copy the stream URL in Jellyfin and paste it into VLC Media Player, which could play the videos okay. But that was not really satisfactory for me.

In the end I installed a new OS on my PC which already came with the codecs to decode x265 preinstalled. I installed it for other reasons but it fixed also that issue and now I can play any video in the Jellyfin Media Player. I did not try if it also works in the browser. The OS I am now using is called Nobara.

[–] [email protected] 1 points 9 months ago (1 children)

So it's a problem on codecs on my pc, not my server, correct? So installing the correct drivers should solve the issue?

[–] [email protected] 4 points 9 months ago

I do not think they are called drivers, but yes, installing the needed codecs should work. I just did not find out how to do it properly.

[–] [email protected] 2 points 9 months ago (1 children)

I just used ffmpeg to encode my files to h264, worked on all my devices

[–] [email protected] 2 points 9 months ago

Doing this will prevent my files from seeding, I'd like to find a more "universal" solution

Thanks for the info tho!