this post was submitted on 28 May 2024
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Jellyfin: The Free Software Media System

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The use case is following:

I'd like to turn off my server at night. Sometimes I stop at 12, sometimes at 1 or 2. If I could ask "is someone watching?" And it returns false, I could postpone the shutdown.

The current solution is to always turn off at 2 and turn on at 7.

How do you guys handle the situation?

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[–] [email protected] 19 points 7 months ago* (last edited 7 months ago) (1 children)

Yep, the api in jellyfin is quite easy. Someone already sent the link to the docs. The specific endpoint you want is Sessions. You need to get yourself an api_key which you can get in the admin panel. Here is an example code in Python to give you an idea on how to use the api:

#!/usr/bin/env python3

import requests

response = requests.get("http://your_jellyfin_server:8096/Sessions?api_key=your_api_key")
json = response.json()

currently_watching = []
for session in json:
    if "NowPlayingItem" in session:
        currently_watching.append(session["UserName"])

if currently_watching:
    print("Currently watching: " + ", ".join(currently_watching))
else:
    print("Nobody is watching")

If it is indeed Python that you want to use, you can adjust it to your needs depending on what you want it to output.

Basically, it is as simple as looping through every current session and checking if they have a NowPlayingItem key which is only present when they have a video open (both playing and paused). It works very reliability, I am using it to automatically change my lights when I watch a long video or movie.

[–] [email protected] 5 points 7 months ago (1 children)

Thank you!

I wrote a bash script that powers off the computer when there was no user activity for 10 minutes.

[–] [email protected] 1 points 6 months ago (1 children)

Neat and handy! I guess you could write some wake-on-LAN shenanigans to make it turn on when a user is trying to connect aswell 👍

[–] [email protected] 1 points 6 months ago

Wow, that would be next level!

[–] [email protected] 11 points 7 months ago (2 children)
[–] [email protected] 7 points 7 months ago

Man i love foss!

[–] [email protected] 3 points 7 months ago

Thx! It works :)

[–] [email protected] 3 points 7 months ago* (last edited 7 months ago) (4 children)

Just curious, why do you turn it off at night? Mine only uses ~2 watts when idling

Edit; more like 7 watts but still pretty good

[–] [email protected] 4 points 7 months ago (2 children)

2W is insane. I wonder how much it actually drains from the wall.

My server idles at 30-35W and turning it off for 6 hours at night (cheaper electricity) would save like 4€ a year. Its cheap here tho

[–] [email protected] 2 points 7 months ago (1 children)

Ok so I did some testing, from the wall it’s about 7 watts idle. I wonder where that extra 5 is coming from, oh well still pretty good!

Sleeping it’s less than 1 watt, so I might see if I can let it sleep at night somehow

[–] [email protected] 2 points 6 months ago

I wonder where that extra 5 is coming from

Most likely PSU efficiency because they are bad on super low power. Still insane, 7W is nothing

[–] [email protected] 1 points 7 months ago

I have a meter I could test with if I wanted, although I’m not sure why iStat would lie

[–] [email protected] 2 points 7 months ago

Would you mind sharing the specs? Thanks in advance!

[–] [email protected] 2 points 7 months ago (2 children)

It depends on the server. Mine is an old Haswell based system, and uses more than 2 watts :)

[–] [email protected] 3 points 6 months ago

I use one of those tiny mini PCs, with an AMD mobile CPU in it. It sips power but has enough oomph for transcoding when necessary. I'm sure the NAS that my library actually sits on uses way more power with its mechanical HDDs.

[–] [email protected] 2 points 7 months ago

True, I’m using a M2 Mac mini. Used to use a raspberry pi

[–] [email protected] 1 points 7 months ago (1 children)

2 watts isn't a lot 😁 I'm not sure but my gpu alone consumes more than that when idle