HEVC transcoding error

Plex Media Server
,
1

Hello everyone,

I have a transcoding error on Plex that’s driving me crazy.
Let me explain, I got tired of torturing my iGPU so I bought a Quadro RTX 4000 for my Plex server.
Everything was going very well until I tried to transcode HEVC, the stream suddenly shuts down with no error messages displayed…
I went to check the Plex logs and, surprisingly, found a bunch of errors that didn’t help so much.
I’ll put them below.
I also checked Nvidia-smi and noticed two processes that appear about 10 seconds before disappearing.

After experimenting with various ideas, I noticed that HEVC transcoding functions smoothly during indirect playback, though there’s a noticeable difference in the Nvidia processes (refer to image 2). Interestingly, in this case, the process doesn’t terminate abruptly after 10 seconds.

If anyone has an idea, I’m all ears.
And one last detail: the Plex server is running inside a Docker container.

Nvidia1
Nvidia1928×422 10.1 KB

Nvidia2
Nvidia2817×400 9.55 KB

Logs Plex :

May 02, 2024 18:22:28.903 [140574476901176] Attention — [Req#ab5/Transcode] Denying access due to session lacking permission to transcode key /library/metadata/282078
May 02, 2024 18:22:31.527 [140574433155896] Erreur — [Req#2208/Transcode/bguwx7ifjfdv2p6k36z97fc0/224fbc92-2abf-457b-b53b-f2428c47365e] [hevc @ 0x7f618797d040] First slice in a frame missing.
May 02, 2024 18:22:31.528 [140574433155896] Erreur — [Req#2216/Transcode/bguwx7ifjfdv2p6k36z97fc0/224fbc92-2abf-457b-b53b-f2428c47365e] [hevc @ 0x7f618797d040] First slice in a frame missing.
May 02, 2024 18:22:31.528 [140574433155896] Erreur — [Req#2218/Transcode/bguwx7ifjfdv2p6k36z97fc0/224fbc92-2abf-457b-b53b-f2428c47365e] [hevc @ 0x7f618797d040] First slice in a frame missing.
May 02, 2024 18:22:31.528 [140574433155896] Erreur — [Req#221c/Transcode/bguwx7ifjfdv2p6k36z97fc0/224fbc92-2abf-457b-b53b-f2428c47365e] [hevc @ 0x7f618797d040] First slice in a frame missing.
May 02, 2024 18:22:31.528 [140574433155896] Erreur — [Req#221e/Transcode/bguwx7ifjfdv2p6k36z97fc0/224fbc92-2abf-457b-b53b-f2428c47365e] [hevc @ 0x7f618797d040] First slice in a frame missing.
May 02, 2024 18:22:31.528 [140574433155896] Erreur — [Req#2221/Transcode/bguwx7ifjfdv2p6k36z97fc0/224fbc92-2abf-457b-b53b-f2428c47365e] [hevc @ 0x7f618797d040] First slice in a frame missing.
May 02, 2024 18:22:31.528 [140574433155896] Erreur — [Req#2224/Transcode/bguwx7ifjfdv2p6k36z97fc0/224fbc92-2abf-457b-b53b-f2428c47365e] [hevc @ 0x7f618797d040] First slice in a frame missing.
May 02, 2024 18:22:31.528 [140574433155896] Erreur — [Req#2227/Transcode/bguwx7ifjfdv2p6k36z97fc0/224fbc92-2abf-457b-b53b-f2428c47365e] [hevc @ 0x7f618797d040] First slice in a frame missing.
May 02, 2024 18:22:31.529 [140574433155896] Erreur — [Req#222a/Transcode/bguwx7ifjfdv2p6k36z97fc0/224fbc92-2abf-457b-b53b-f2428c47365e] [hevc @ 0x7f618797d040] First slice in a frame missing.
May 02, 2024 18:22:31.529 [140574433155896] Erreur — [Req#222d/Transcode/bguwx7ifjfdv2p6k36z97fc0/224fbc92-2abf-457b-b53b-f2428c47365e] [hevc @ 0x7f618797d040] First slice in a frame missing.
May 02, 2024 18:22:31.529 [140574433155896] Erreur — [Req#2230/Transcode/bguwx7ifjfdv2p6k36z97fc0/224fbc92-2abf-457b-b53b-f2428c47365e] [hevc @ 0x7f618797d040] First slice in a frame missing.
May 02, 2024 18:22:31.529 [140574433155896] Erreur — [Req#2233/Transcode/bguwx7ifjfdv2p6k36z97fc0/224fbc92-2abf-457b-b53b-f2428c47365e] [hevc @ 0x7f618797d040] First slice in a frame missing.
May 02, 2024 18:22:31.529 [140574433155896] Erreur — [Req#2238/Transcode/bguwx7ifjfdv2p6k36z97fc0/224fbc92-2abf-457b-b53b-f2428c47365e] [hevc @ 0x7f618797d040] First slice in a frame missing.
May 02, 2024 18:22:31.530 [140574433155896] Erreur — [Req#223b/Transcode/bguwx7ifjfdv2p6k36z97fc0/224fbc92-2abf-457b-b53b-f2428c47365e] [hevc @ 0x7f618797d040] First slice in a frame missing.
May 02, 2024 18:22:33.338 [140574591769400] Erreur — [TranscodeOutputStream] Session appears to have died from under us
May 02, 2024 18:22:36.391 [140574433155896] Attention — [Req#288d] QueryParser: Invalid field 'contentDirectoryID' found, ignoring.
May 02, 2024 18:22:36.391 [140574526798648] Attention — [Req#288c] QueryParser: Invalid field 'contentDirectoryID' found, ignoring.
May 02, 2024 18:22:36.396 [140574481603384] Attention — [Req#288e] QueryParser: Invalid field 'contentDirectoryID' found, ignoring.
May 02, 2024 18:22:41.218 [140574476901176] Attention — [Req#28b7] QueryParser: Invalid field 'contentDirectoryID' found, ignoring.
May 02, 2024 18:22:41.219 [140574526798648] Attention — [Req#28b1] QueryParser: Invalid field 'contentDirectoryID' found, ignoring.
May 02, 2024 18:22:41.223 [140574481603384] Attention — [Req#28b4] QueryParser: Invalid field 'contentDirectoryID' found, ignoring.
May 02, 2024 18:23:03.178 [140574481603384] Attention — [Req#2939] QueryParser: Invalid field 'contentDirectoryID' found, ignoring.
May 02, 2024 18:23:03.179 [140574512810808] Attention — [Req#2945] QueryParser: Invalid field 'contentDirectoryID' found, ignoring.
May 02, 2024 18:23:03.187 [140574514920248] Attention — [Req#2946] QueryParser: Invalid field 'contentDirectoryID' found, ignoring.
1 Like
2

Same issue here and it’s driving me nuts.

3

I too am getting these and similar errors in the server log.
Does anyone have any insight?

4

It tells you in the first line. You are lacking your transcode key. Which means your plex pass either has an issue or is not setup correctly. You must have a plexpass to transcode with a gpu.

[Req#ab5/Transcode] Denying access due to session lacking permission to transcode key /library/metadata/282078

5

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