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+--- Thread: Recording Playback Issues (/t-recording-playback-issues)
Recording Playback Issues - marshalleq - 2025-04-20
Hi all, I'm in the process of checking out Jellyfin to replace Plex. Everything seems to be largely working, however I've just come into an issue where the test show I recorded cannot be played back in Jellyfin. I've tried a few different clients and all cannot play it back, however Plex can.
I've checked and the file has been saved as a .ts file.
In the logs the error seems to be:
[out#0/hls @ 0x563438c47500] Cannot map stream #0:0 - unsupported type.
[out#0/hls @ 0x563438c47500] If you want unsupported types ignored instead of failing, please use the -ignore_unknown option
If you want them copied, please use -copy_unknown
Error opening output file /config/cache/transcodes/dfe04e7b70858d15483b4e15656212d9.m3u8.
Error opening output files: Invalid argument
As a second on that, the automated Tdarr process I use, also failed to transcode it to HEVC providing the same error. And this is a difference in that Plex also creates .ts files which transcode fine and also playback fine in Jellyfin.
One thing it could be that I'm about to try, is I do have hardware encoding checked. Hardware decoding is working well, but perhaps encoding is causing it.
I have attached the log below (note this is the decode log, not the encode log - I have been unable to find the encode log for this particular episode, though I did find one for another).
Any ideas? I couldn't find anyone else with this same issue when searching, so perhaps it's me.
Also, my GPU is an Nvidia P2000.
Thanks.
RE: Recording Playback Issues - TheDreadPirate - 2025-04-20
Seems that Tdarr is the problem. There are four streams, the first two are unknown/unidentifiable with the 3rd and 4th being H264 video and AAC audio. Jellyfin, for some reason, is selecting the first unknown stream instead of the 3rd H264 stream.