Hardware transcoding not working on any player (Emby Theatre, web browser, TV etc.)

[allanp81 0]

I didn't think cuvid was the right thing to use? Surely NVDEC is the one to use?

[allanp81 0]

Same problem with CUVID as NVDEC. This all works fine on Jellyfin so this an Emby problem.

ffmpeg-transcode-99f1b9e9-f3a8-4b32-bbcb-1604683d0b7e_1.txt embyserver (1).txt hardware_detection-63883712268.txt ffmpeg-transcode-06ce6e7f-b2a6-4289-bfdd-6e0e386e2d6d_1.txt ffmpeg-transcode-7e9474b0-fc09-430b-a1b0-9e855a0e1cfe_1.txt

Edited May 24, 2025 by allanp81

[rulanticus 1]

I have exactly the same error. Try to fix it since weeks but not possible. Same with intel GPU or Nvidia. Jellyfin and Plex worked fine for over 3 years. Emby is also running in an docker like my plex and jellyfin setups. I think its an issue from emby. I found a lot of people with the same issues on different forums.

[rulanticus 1]

Update:

Same error also on Win11 installation on normal PC. Without Docker etc. 

[rulanticus 1]

I got it working . Install the Diagnostic Plugin and try this @allanp81:

Disable HLS Subtitles = On

Disable Subtitle Streams = On

Disable Hardware Subtitle Overlay = On

Disable Subtitle Filtering = On

 

Works for me on Unraid with Emby in Offical Docker and also on Win11 PC installation.

 

 

 

[allanp81 0]

I think the diagnostic plugin only disables things temporarily though? 

[Neminem 1518]

13 minutes ago, allanp81 said:

I think the diagnostic plugin only disables things temporarily though? 

Yes you need to redo them, after every server reboot.

[rulanticus 1]

correct.

[allanp81 0]

I tried it on my docker and same problem.

[Luke 42077]

hi, we're looking into this. Thanks.

[binghunlong 0]

On 6/11/2025 at 11:07 AM, Luke said:

hi, we're looking into this. Thanks.
好的，我们正在调查这个问题。谢谢。

Sorry , I just replied to the wrong topic.
I encountered the same issue and had to revert to version 4.7. I hope the cause can be identified as soon as possible. My graphics card model is Tesla P4.

hardware_detection-63890090630.txt embyserver.txt ffmpeg-transcode-ae36bb69-edc9-4c62-b5bb-8559efba9c3f_1.txt

[Luke 42077]

On 8/6/2025 at 3:43 AM, binghunlong said:

Sorry , I just replied to the wrong topic.
I encountered the same issue and had to revert to version 4.7. I hope the cause can be identified as soon as possible. My graphics card model is Tesla P4.

hardware_detection-63890090630.txt 253.92 kB · 0 downloads embyserver.txt 93.73 kB · 0 downloads ffmpeg-transcode-ae36bb69-edc9-4c62-b5bb-8559efba9c3f_1.txt 108.27 kB · 0 downloads

Hi, we are looking into this. We'll have a new ffmpeg build on the server beta channel in the near future, so stay tuned for that.

[Essjay10 5]

I'm having the exact same problem for months now. Works fine with Jellyfin, but Emby is using CPU to decode.

I tried the latest beta v4.9.1.21 and it still isnt working.

Edited August 22, 2025 by Essjay10

[Essjay10 5]

On 12/08/2025 at 17:50, Luke said:

Hi, we are looking into this. We'll have a new ffmpeg build on the server beta channel in the near future, so stay tuned for that.

Hi Luke, Any update on this? I'm now on 4.9.1.26 and hardware transcoding is still not working.

[Luke 42077]

Hi, we are working on this. Thanks.