Stuttering in Jellyfin
reddit / selfhosted

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AreYouEvenReal2 · 2023-11-16 15:00

Having issues with the Jellyfin client. Won't play a 4K video without
stuttering using Direct Play. Transcoding to a lower resolution seems
to fix this issue. I know the laptop is capable because it can play 4K
video in VLC just fine. It's got a 11800H and a RTX 3050 Ti.

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Ambitious_Mammoth482 · 2023-11-16 15:28

Could mean the network between your 2 machines is to slow (wifi?)

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AreYouEvenReal2 · 2023-11-16 15:42

Same machine. It's a test setup of sorts.

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Ambitious_Mammoth482 · 2023-11-16 15:48

then its maybe the client (browser?) which can not access the gpu (has
no acceleration)

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AreYouEvenReal2 · 2023-11-16 15:49

It's the app not the browser. As far as I know browsers use
accelerated decoding anyway.

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Ambitious_Mammoth482 · 2023-11-16 16:08

how do you run your server? as a docker container, vm or directly? i
suspect something seems to limit the bandwidth.

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AreYouEvenReal2 · 2023-11-16 16:36

Docker

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AreYouEvenReal2 · 2023-11-16 16:37

I should point out it's not buffering, rather it's micro stutters
where it misses a few frames

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gohankr · 2023-11-16 18:15

It would be helpful if you can add screenshot of streaming detail from
jellyfin dashboard

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zachfive87 · 2023-11-16 21:53

Ffmpeg logs and maybe head to the jellyfin forums, there are a lot of
helpful people there.

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AreYouEvenReal2 · 2023-11-17 00:01

I thought ffmpeg isn't used when not transcoding

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Ambitious_Mammoth482 · 2023-11-17 10:42

Docker Max Bandwith (quick google search):
might be insufficient for high bitrate 4k content

| Max Possible | Host mode    | Bridge mode  |
| 740 Mbit/sec | 740 Mbit/sec | 580 Mbit/sec |
| 100 %        | 100 %        | 80 %         |

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AreYouEvenReal2 · 2023-11-17 14:53

Have you seen those numbers? Unless you're using uncompressed 4K that
shouldn't be an issue.