New Host Transcoding Issues

[shotblocker]

I recently changed my jellyfin host to a new machine. It has an Intel i7-13700. Transcoding seems to work fine, except when trying to load 4k movies in browser. The transcode log: https://pastebin.com/mhWUnBKx (Password for non-indexing purposes ULVAAL8Jid). The movie loads, but never plays.

I'm using a web browser (firefox) as the client for testing purpose. Other clients are remuxing, and seem to work ok. Transcoding 1080p works fine. Not sure what the issue is here. Could use some help, please let me know whatever additional information is needed to troubleshoot.

EDIT: Also generation of new trickplay images also seem to get similarly stuck.

[alleycat]

I recently changed my jellyfin host to a new machine. It has an Intel i7-13700. Transcoding seems to work fine, except when trying to load 4k movies in browser. The transcode log: https://pastebin.com/mhWUnBKx (Password for non-indexing purposes ULVAAL8Jid). The movie loads, but never plays.

I'm using a web browser (firefox) as the client for testing purpose. Other clients are remuxing, and seem to work ok. Transcoding 1080p works fine. Not sure what the issue is here. Could use some help, please let me know whatever additional information is needed to troubleshoot.

Try using Microsoft Edge and see if that works. Firefox may have issues with 4K.

Also see,
https://jellyfin.org/docs/general/clients/codec-support

[shotblocker]

Thanks for the codec support list, didn't know that was a thing! Yes, it seems like chrome and edge work fine, just not firefox. I'm a noob when it comes to media codecs but shouldn't it re-encode in a compatible format? Also, I am still having issues generating trickplay images. The generation queues, but never finishes processing. Looking in the logs for example, it starts at Oppenheimer, but never progresses past it.

Code:

[2025-04-27 15:27:49.186 +00:00] [INF] [35] Jellyfin.Server.Implementations.Trickplay.TrickplayManager: Creating trickplay files at 320 width, for "/data/media/movies/Oppenheimer (2023)/Oppenheimer (2023) Unknown.m2ts" [ID: 360190f7-ace5-c7f3-5b23-79b384b179f8]
[2025-04-27 15:27:49.186 +00:00] [INF] [35] MediaBrowser.MediaEncoding.Encoder.MediaEncoder: Trickplay generation: "/usr/lib/jellyfin-ffmpeg/ffmpeg -loglevel error -skip_frame nokey -init_hw_device vaapi=va:,vendor_id=0x8086,driver=iHD -init_hw_device qsv=qs@va -init_hw_device opencl=ocl@va -filter_hw_device qs -hwaccel vaapi -hwaccel_output_format vaapi -noautorotate -i file:\"/data/media/movies/Oppenheimer (2023)/Oppenheimer (2023) Unknown.m2ts\" -noautoscale -an -sn -vf \"fps=0.10000000149011612,setparams=color_primaries=bt2020:color_trc=smpte2084:colorspace=bt2020nc,scale_vaapi=w=320:h=180:mode=hq:extra_hw_frames=24,hwmap=derive_device=opencl:mode=read,tonemap_opencl=format=nv12:p=bt709:t=bt709:m=bt709:tonemap=bt2390:peak=100:desat=0.5:range=pc,hwmap=derive_device=qsv:mode=write:reverse=1:extra_hw_frames=16,format=qsv\" -threads 1 -c:v mjpeg_qsv -global_quality:v 91 -fps_mode passthrough -f image2 \"/tmp/jellyfin/83e125e32c3b49878dc79a7eb76a50da/%08d.jpg\""

It goes on until I cancel it manually. Typically on old jellyfin host, it wouldn't take more than 5 minutes on 1 4k movie. This seems to just stay frozen.

EDIT: It progressed after about 20 minutes, which is odd that it's functioning slower than it used to. Still curious about firefox compatibility though, it used to work fine, just would look washed out as I couldn't tone map, now it doesn't load at all on firefox.