SOLVED: Playback Error causing 0 videos to play

[Link of Hyrule]

ffmpeg is missing.

Code:

[2024-07-05 00:41:06.289 +00:00] [ERR] Error processing request. URL "GET" "/videos/70534b1a-3a59-0ecc-1b24-2cb4e47f9ecf/live.m3u8".
System.ArgumentNullException: Value cannot be null. (Parameter '_mediaEncoder.EncoderPath')

What are the contents of /etc/jellyfin/encoding.xml?  Is there a value for this line?

Code:

<EncoderAppPathDisplay>/usr/lib/jellyfin-ffmpeg/ffmpeg</EncoderAppPathDisplay>

Is jellyfin-ffmpeg installed?

Code:

sudo apt list --installed | grep ffmpeg

Is the EncoderAppPathDisplay set in /etc/jellyfin/encoding.xml?

Also make sure you install jellyfin-ffmpeg instead of plain ffmpeg.

Code:

sudo apt install jellyfin-ffmpeg6

Alright, so I just removed the Jellyfin-ffmpeg, and installed it again, and added the correct route in the encoding.xml, restarted the server, and the couple of test videos I tried worked like a charm. I believe when I reinstalled Jellyfin and the ffmpeg, it must not have took away everything the first time, and Ubuntu thought it was still there. I possibly would have thought to try that again, but not as soon as I would've on Windows (where I do most my computing) I'm still working on learning Linux, and appreciate your help in this fix, my son thinks he's being punished when certain things don't work for him.