Server becomes unresponsive after a while during ffmpeg AttachmentExtractor task

[magguzu]

This is a follow up to this issue I thought was resolved but seems to be back: https://forum.jellyfin.org/t-solved-serv...r-my-phone (ignore the "for my phone" part; I've since narrowed this further to all web).

This seems to kind of randomly occur when playing content with SSA/ASS subtitles from the web or web-wrapper apps like Android. Around midway through playback, it just freezes and the server becomes almost completely unresponsive until I restart the docker container.

In the instances I've seen, the server has been either transcoding for reason "container not supported" or remuxing (which I thought was the same thing but that's what the server says).

I always see it occur after first MediaBrowser.MediaEncoding.Subtitles.SubtitleEncoder, then MediaBrowser.MediaEncoding.Attachments.AttachmentExtractor task. I took a look at the classes and with my very limited understanding, it seems to be related to extracting the SSA subtitles? That would track with all the occurrences of this I've seen.

https://github.com/jellyfin/jellyfin/blo...Encoder.cs
https://github.com/jellyfin/jellyfin/blo...tractor.cs

Here's the full log:
https://pastebin.com/Nk6ZFHSR

Server and web are 10.10.1.

Here's the compose:


  jellyfin:
    image: jellyfin/jellyfin:latest
    container_name: jellyfin
    ports:
      - 8096:8096
    group_add:
      - "109" # render group
      - "44" # video group
    devices:
      - /dev/dridev/dri
    volumes:
      - type: bind
        source: /services/jellyfin/jellyfin/jellyfin-web/config.json
        target: /jellyfin/jellyfin-web/config.json
      - /services/jellyfin/configconfig
      - /services/jellyfin/cachecache
      - /mnt/mediamedia
    restart: always
    environment:
      - TZ=America/New_York
      - JELLYFIN_PublishedServerUrl=https://jellyfin.xxxx
    logging:
      driver: "json-file"
      options:
        max-file: "10"
        max-size: "200k"