Stream Detect

Built for Dungeon Train — usable by any mod. Stream Detect has no dependency on Dungeon Train.

Made for streamers

When you're streaming, a mod can do better than treat you like every other player. Stream Detect tells other mods one thing: OBS Studio or Streamlabs is open. What they do with that is up to them. For example, they can:

• point you to a place to share your stream or clip
• surface streamer-friendly options, such as hiding info you might not want on screen
• adjust prompts and pop-ups so they read well on camera

Dungeon Train uses it to show a Share stream! tab on its Videos button, so streamers can add their channel to the in-game community videos page.

What it looks at, and what it doesn't

• It only checks for these exact program names: obs64.exe, obs32.exe, obs (macOS / Linux), Streamlabs OBS.exe, Streamlabs Desktop.exe.
• It knows only that the program is open, not whether you are recording or live.
• No command lines, window titles, files, registry, network access or admin rights.
• The answer never leaves your PC. The only trace is one line in the game log.
• It checks once per game session, only when another mod asks.

Setup

Nothing to configure. Install it alongside a mod that uses it. Client-side only; servers don't need it.

For mod developers

Tailor your mod for streamers with one call:

• games.brennan.streamdetect.api.StreamDetect.detectNow() returns the matched program name, or null. Call it off the render thread; the result is cached after the first call.
• hasResult() and isRunningNow() are cheap reads for render code.

Declare Stream Detect as an optional dependency and guard calls with your loader's "is mod loaded" check. Launch with -Dstreamdetect.test=obs64.exe to test your streamer UI without OBS running.

Compatibility

Fabric, Forge and NeoForge for Minecraft 1.21.1. No mixins, items, blocks, commands or config.