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    Useful Links Forum Website GitHub Status Translation Features Team Rules Help Feeds
    Jellyfin Forum Support Troubleshooting Transcoding

     
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    Transcoding

    Cannot play anything 4k if it transcodes
    ramicio
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    Posts: 9
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    Joined: 2024 Jan
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    Country:United States
    #5
    2024-01-23, 03:00 PM (This post was last modified: 2024-01-23, 03:04 PM by ramicio.)
    I'm not objecting to keeping them. I'm just wondering what should be erased from them.

    The remote client limit is set to 35 mbps:

    RemoteClientBitrateLimit: 35000000

    Reason for transcode is:

    TranscodeReasons=ContainerBitrateExceedsLimit

    The file in question has an overall bit rate (per mediainfo) of 14.2 mbps.

    Okay, so maybe they need to set their "max streaming bit rate" manually to something like 30 mbps (I see that auto is buggy?)

    This doesn't change the fact that the client rejects what the transcoder is sending it. I'm seeing literally nothing in the logs that indicates why.

    I see a lot "slow response" from the client warnings all over the place. Even when I test transcoding on my local network.

    Server is:
    - Dual Xeon Gold 6242
    - 256 GB RAM
    - 16x 18 TB drives connected via LSI 9201-16i, running striped RAIDz2 (RAID 60 in essence) - Where media resides
    - 4x Samsung 970 Pro 1 TB on a x16 PCIe card, in RAID 0 - Where metadata and other pertinent stuff resides
    - 2x U.2 960 GB Optane drives - Mirrored, for ZFS metadata
    - Quadro P2000 GPU
    - Mellanox 40 gigabit NIC

    Network works like:
    - Server connects via QSFP+ to a Brocade ICX-6610. This connects to a UDM-Pro via SFP+. Internet is cable internet with 35 mbps upload capability, connected to UDM-Pro. At my desk I have a Mikrotik switch that has 2 SFP+ ports and 8 gigabit RJ45 ports. One of the SFP+ ports goes to the Brocade switch. Shield is plugged into one of the gigabit Mikrotik ports.

    Everything is plenty fast for what I'm doing, except the internet (that's out of my hands, local monopoly). I can possibly explain the LAN-side behavior because it was trying to go from 4k HEVC to 4k h.264. BUT, the remote client was getting their transcode downscaled to 1080p (don't know how).

    Thank you.

    Also looking through the logs, it seems the remote client was being sent both libVLC and ExoPlayer for the same session. First transcode 200M segment was for VLC and the next one was for ExoPlayer. Should I have them just set their client to use ExoPlayer?

    Another thought, their TV is a 4k TV and I've seen them play 4k stuff on Plex before (when it miraculously didn't want to transcode).
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    Messages In This Thread
    Transcoding - by ramicio - 2024-01-23, 02:01 AM
    RE: Transcoding - by tmsrxzar - 2024-01-23, 02:10 AM
    RE: Transcoding - by ramicio - 2024-01-23, 06:23 AM
    RE: Transcoding - by tmsrxzar - 2024-01-23, 02:24 PM
    RE: Transcoding - by ramicio - 2024-01-23, 03:00 PM
    RE: Transcoding - by tmsrxzar - 2024-01-23, 03:13 PM
    RE: Transcoding - by ramicio - 2024-01-23, 05:56 PM
    RE: Transcoding - by tmsrxzar - 2024-01-23, 06:24 PM
    RE: Transcoding - by ramicio - 2024-01-23, 11:11 PM
    RE: Transcoding - by ramicio - 2024-01-28, 10:57 PM
    RE: Transcoding - by tmsrxzar - 2024-01-28, 11:02 PM
    RE: Transcoding - by wkearney99 - 2024-02-01, 02:52 PM
    RE: Transcoding - by ramicio - 2024-02-01, 11:15 PM
    RE: Transcoding - by wkearney99 - 2024-02-02, 01:06 AM
    RE: Transcoding - by ramicio - 2024-02-02, 03:26 AM
    RE: Transcoding - by wkearney99 - 2024-02-02, 12:28 PM
    RE: Transcoding - by tmsrxzar - 2024-02-02, 03:40 PM
    RE: Transcoding - by ramicio - 2024-02-02, 10:02 PM
    RE: Transcoding - by TheDreadPirate - 2024-02-02, 10:16 PM

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