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+--- Thread: Fatal error when transcoding (/t-fatal-error-when-transcoding)
Fatal error when transcoding - Lithorium - 2025-05-21
As noted, I get a fatal error whenever I try to transcode!
I am running on Intel QSV, on a Intel i5 8500. 8gb ram.
Am trying to set up transcoding due to inability to load anything when off of home network, and having most files in 4k.
Paste bin for FFMPEG here: https://pastebin.com/bNkSzY5U
Thanks!
RE: Fatal error when transcoding - bitmap - 2025-05-21
More information is needed to fully diagnose, however, OpenCL is your issue.
Start here and find your install type: https://jellyfin.org/docs/general/post-install/transcoding/hardware-acceleration/intel#configure-on-linux-host
Make sure OpenCL is installed and use the steps to verify. If you're not using an Intel device, the wrong kind of hardware acceleration is selected or your device does not fully support it in this context. Depending on your device, you may also want to disable AV1 encoding. You can find codec support matrices in the link above and Wikipedia has a great one as well.
If you have issues, please share your host OS, server hardware, Jellyfin version, and your hardware acceleration settings as well as information on where you got stuck.
RE: Fatal error when transcoding - Lithorium - 2025-05-22
(2025-05-21, 03:25 PM)bitmap Wrote: More information is needed to fully diagnose, however, OpenCL is your issue.
Start here and find your install type: https://jellyfin.org/docs/general/post-install/transcoding/hardware-acceleration/intel#configure-on-linux-host
Make sure OpenCL is installed and use the steps to verify. If you're not using an Intel device, the wrong kind of hardware acceleration is selected or your device does not fully support it in this context. Depending on your device, you may also want to disable AV1 encoding. You can find codec support matrices in the link above and Wikipedia has a great one as well.
If you have issues, please share your host OS, server hardware, Jellyfin version, and your hardware acceleration settings as well as information on where you got stuck.
So I think I have it working fine for everything now! The last hurdle seems to be tone mapping - watching HDR content looks washed out, but I can only get it working with Tone mapping off.
Paste bin of a HDR video without tone mapping here: https://pastebin.com/2YHfZeGQ
Thanks!
RE: Fatal error when transcoding - bitmap - 2025-05-22
Can you share your tonemapping settings? Washed out could be a symptom of tonemapping, but in my experience, it's more "dynamic" contrast where the image seems to flash when lighting changes. Additionally, you could try to change off between the two tonemapping modes.
RE: Fatal error when transcoding - Lithorium - 2025-05-22
(2025-05-22, 02:39 PM)bitmap Wrote: Can you share your tonemapping settings? Washed out could be a symptom of tonemapping, but in my experience, it's more "dynamic" contrast where the image seems to flash when lighting changes. Additionally, you could try to change off between the two tonemapping modes.
Ofcourse, thanks!
With these settings I get a error for the file, pastebin here: https://pastebin.com/jbAhtr9p
Thank you!
RE: Fatal error when transcoding - bitmap - 2025-05-22
Pop in /dev/dri/renderD128 to the QSV device....that must be filled in. Also, with a Coffee Lake CPU you should be able to decode MPEG-2, AVC, VC-1, HEVC, HEVC 10-bit, VP9, and VP9 10-bit. So you can check those in the decode list.