Proclaim to control OBS and PTZ Cameras

John Goodman · 2025-05-09T15:00:24+00:00

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We are using Proclaim to present on one computer and OBS to stream from another. We would like to put both programs on one machine maybe. I've tried creating an NDI source from proclaim which works well, we also have 3 NDI cameras. What would be really nice is to be able to control camera positions from proclaim and to control which scene is triggered in obs for camera angles too.

For camera positions, the easiest thing would be if proclaim can hit the camera urls via http calls?

For OBS, I've wondered about MIDI? Hotkeys tend to have focus issues and cause unexpected behaviours… http calls to a web control could also work.

Are these things possible, I have seen comments on the forums that people are doing these things but I don't see any detailed guide?

Even better can we trigger changes to our audio feed too? Our mixer supports midi control.

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Comments

John Goodman

I should say I'm on a mac

John Goodman

So I discovered that I needed to enable IAC driver in audio midi setup on mac. Now the 2 programs can talk! This works well for scene changes in OBS. What I haven't figured then is camera preset control? Has anyone got this going?

John Goodman

This version of obs midi mg is up to date - https://github.com/nhielost/obs-midi-mg/releases/tag/3.0.3

Richard Wardman

Could you use a StreamDeck for this?

John Goodman

I could but the idea of doing it in proclaim is that you are stepping through the service in order and cues could be automated. We have various control surfaces but we like the idea of automation.

Jordan Sjodin

What kind of PTZ cameras are they?

http calls to a web control could also work

What does this look like? We have talked about adding simple http calls as an option like midi and Philips hue.

Steven Stoops

I know that this isn't exactly what you are looking for, @John Goodman but you could use proclaim to send a midi signal to OBS which could then use https://obsproject.com/forum/threads/xobssimplehttpcontrol-simple-http-url-control-for-obs.146613/ to relay that signal to your cameras.

Also, we found a better OBS controller than obs-midi-mg. It is Advanced Scene Switcher — it does a lot of things that obs-midi-mg can't do and all those things that it does:

https://obsproject.com/forum/resources/advanced-scene-switcher.395/updates#resource-update-7014

Advanced Scene Switcher now has a "Scene Switcher Message" in the Websocket settings that may do exactly what you want without using xObsSimpleHttpControl

John Goodman

Thanks, we have ptzoptics g2 series cameras but all the ptzoptics cameras since several years have websockets and many other brands too. The purpose is for control via such things as a stream deck or ideally third party apps like proclaim.