JellySTRMprobe

A Jellyfin plugin that extracts media information from STRM files by probing remote streams.

The Problem

Jellyfin treats STRM files as "shortcuts" and never probes them during library scans. This means movies and episodes sourced from STRM files show up with no duration, codec, resolution, or audio information — even after a full library scan. Media info is only populated on first playback.

Without this plugin:

• No duration, codec, resolution, or audio info in the UI
• Movies may be marked as "played" after a few seconds (no duration known)
• Filter/search by resolution or codec doesn't work
• The version picker can't distinguish between quality variants

How It Works

The plugin calls Jellyfin's internal RefreshSingleItem() with EnableRemoteContentProbe = true — the same flag Jellyfin sets during playback. This triggers ffprobe against the STRM target URL without requiring the user to play every item first.

Features

Scheduled Task

A scheduled task (Dashboard > Scheduled Tasks > Probe STRM Media Info) that:

• Finds all STRM items with no media stream data
• Probes them in parallel with configurable concurrency
• Runs daily at 4:00 AM by default (customizable)
• Reports progress and is cancellable from the Dashboard

Catch-Up Mode

Automatically probes new STRM items as they're added during library scans:

• Subscribes to Jellyfin's ItemAdded event
• Debounces for 30 seconds to batch process items
• Enabled by default (can be disabled in settings)

Configuration

All settings are accessible from Dashboard > Plugins > JellySTRMprobe:

Setting	Default	Range	Description
Catch-Up Mode	Enabled	On/Off	Auto-probe new STRM items when added
Parallelism	5	1–20	Concurrent probe operations
Timeout	60s	10–300s	Per-item probe timeout
Cooldown	200ms	0–5000ms	Delay between probes (prevents upstream overload)
Libraries	All	Multi-select	Which libraries to probe

Installation

From Plugin Repository (Recommended)

1. In Jellyfin, go to Dashboard > Plugins > Repositories
2. Add repository URL:

   https://firestaerter3.github.io/jellyfin-plugin-repo/manifest.json
   

3. Go to Catalog, find JellySTRMprobe, and install
4. Restart Jellyfin

Manual Installation

1. Download the latest release from Releases
2. Extract JellySTRMprobe.dll to your Jellyfin plugins directory:

   <jellyfin-data>/plugins/JellySTRMprobe/JellySTRMprobe.dll
   

3. Restart Jellyfin

Requirements

• Jellyfin 10.11.0 or later
• .NET 9.0

Building from Source

dotnet build -c Release
dotnet test -c Release
dotnet publish JellySTRMprobe -c Release -o ./publish

Prior Art

Project	Platform	Notes
StrmAssistant	Emby	Emby-only, incompatible with Jellyfin
JellyfinStrmExtract	Jellyfin	Sequential processing, targets Jellyfin 10.9.x

License

Licensed under the GPL-3.0 License. See LICENSE for details.