SOLVED: Playback Error

[C0nfigurator]

Hello Everyone,

I am using Jellyfin for some time without any problems now. That said I have an issue with a tvshow of mine. I get a message that a error has occured and the playback just wont work. Yesterday I got the same error but after some time the playback starts. Today I can't get a single episode to playback. In the log file /var/log/jellyfin/FFmpeg.DirectStream-xxx.log file I found the following:

[matroska,webm @ 0x5cc12c470f40] Invalid Block Addition value 0x0 for unknown Block Addition Mapping type 68766345, name ""

I am honestly don't know if I even look in the right set of logs here. I am sure somebody has an idea on how to troubleshoot this?

Thank you in advance everybody!

[TheDreadPirate]

Is this happening on all files or just some files? I can't find much information about that specific error. You can try remuxing the files manually and trying to play the new file.

Code:

/usr/lib/jellyfin-ffmpeg/ffmpeg -fflags +genpts+igndts -i file:"/mnt/mediadata/tvshows/Arcane/Season 1/Arcane - 1x04 - Happy Progress Day!.mkv" -map 0 -codec copy -avoid_negative_ts disabled -max_muxing_queue_size 2048 -max_interleave_delta 0 newFile.mkv

[C0nfigurator]

Is this happening on all files or just some files?  I can't find much information about that specific error.  You can try remuxing the files manually and trying to play the new file.

Code:

/usr/lib/jellyfin-ffmpeg/ffmpeg -fflags +genpts+igndts -i file:"/mnt/mediadata/tvshows/Arcane/Season 1/Arcane - 1x04 - Happy Progress Day!.mkv" -map 0 -codec copy -avoid_negative_ts disabled -max_muxing_queue_size 2048 -max_interleave_delta 0 newFile.mkv

It happens on all the files of this specific show, other files can be played without a problem. What exactly do you mean with "remuxing"? I am quite new to the jellyfin/selfhost media game.

---

Is this happening on all files or just some files?  I can't find much information about that specific error.  You can try remuxing the files manually and trying to play the new file.

Code:

/usr/lib/jellyfin-ffmpeg/ffmpeg -fflags +genpts+igndts -i file:"/mnt/mediadata/tvshows/Arcane/Season 1/Arcane - 1x04 - Happy Progress Day!.mkv" -map 0 -codec copy -avoid_negative_ts disabled -max_muxing_queue_size 2048 -max_interleave_delta 0 newFile.mkv

It happens on all the files of this specific show, other files can be played without a problem. What exactly do you mean with "remuxing"? I am quite new to the jellyfin/selfhost media game.

I just googled it, nevermind. I will try that. Thanks!

[TheDreadPirate]

Remuxing is taking the contents of a container (MKV) and copying them, unchanged, into another. A container is not just a file extension. The MKV/MP4/TS/AVI, etc., containers provide metadata and time stamps for syncing up audio and video, provide mechanisms for multiple audio/subtitle tracks, etc. If the container is malformed that can cause playback issues, even if the actual audio and video are fine.

The error in your ffmpeg log appears to indicate a MKV container problem. The ffmpeg command I provided should copy the contents of an existing file and insert it into a new, properly generated, MKV container.

[C0nfigurator]

Rebuild the mkv conrainer with OrcasMKVFix, works perfectly now. Thanks!