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Hardware Transcoding in Docker on Debian 9


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I am having some issues doing hardware transcoding through docker. I have everything setup correctly (I think) but it looks like it's still using software. I've setup my emby user as a member of the video group, set permissions to /dev/dri/renderD128 to 777, and have the hardware decoder mapped through docker. See below for my docker-compose config:

# Emby Media Server
    image: emby/embyserver
    container_name: emby
    restart: unless-stopped
    network_mode: bridge
      - "8096:8096/tcp"
      - "8920:8920/tcp"
      - TZ=${TZ}
      - UID=${PUID_EMBY}
      - GID=${PGID_KODI}
      - GIDLIST=44
      - ${PICKYDIR}/emby:/config
      - ${DOCKERDIR}/media:/mnt/share1
      - ${DOCKERDIR}/backups:/mnt/share2
      - ${SSD}/transcode_emby:/transcode
      - "/dev/dri/renderD128:/dev/dri/renderD128"

Any other ideas?



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What hardware do you have? Currently gpu support in Docker is only experimental, therefore at this stage we may not yet have all the answers.

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