SOLVED: Jellyfin not transcoding on Docker

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Try changing your docker compose to this:

Code:

services:
  jellyfin:
    image: jellyfin/jellyfin
    container_name: jellyfin
    environment:
      - JELLYFIN_LOG_LEVEL=debug
    devices:
      - /dev/dri/card0:/dev/dri/card0
      - /dev/dri/renderD128:/dev/dri/renderD128
    group_add:
      - 104 # run 'id' and change this to your render group
    networks:
      - swag-net
    ports:
      - 8096:8096
    user: ${PUID}:${PGID}
    volumes:
      - ${appdata}/jellyfin/config:/config
      - ${appdata}/jellyfin/cache:/cache
      - ${data}/media/movies:/movies
      - ${data}/media/tv:/tv
      - ${data}/es-media/movies:/es-movies
      - ${data}/es-media/tv:/es-tv
    restart: unless-stopped

Make sure that QSV is selected and that /dev/dri/renderD128 is listed. You weren't specific whether vainfo was run inside the container or outside the container. Run it again inside the container.

Code:

docker exec -it jellyfin /usr/lib/jellyfin-ffmpeg/vainfo

Here's info for decode support and encode support on codecs:

Decode (most important): https://www.intel.com/content/www/us/en/...VIEW-OTHER
Encode: https://www.intel.com/content/www/us/en/...VIEW-OTHER

Ensure that the decode section in Jellyfin matches what is supported according to the Intel documentation. Uncheck allow encoding in AV1 (not supported). Seems like HEVC is supported.