BigMarker News & Updates RTMP Multi-Stream

Run a multi-camera show from your webinar room

November 15, 2024
Stream several RTMP feeds into one webinar, each from its own encoder, and pick which camera your audience sees, right from the room.
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A produced show often has more than one camera. With Multi-stream, each camera’s encoder streams into your webinar on its own key, and every feed arrives in the room as a camera you can pin or spotlight for your audience.

Every camera, its own feed

Give each encoder in your studio its own stream key, and point them all at your webinar’s stream URL. OBS, vMix and hardware encoders all work.

In the room, every feed shows up as a camera tile named after its key, ready for you to put on stage.

Three RTMP feeds, a wide shot, a host camera and a guest camera, arranged as cameras in the webinar room.
Illustration

Set it up in three steps

Open your webinar’s admin, then Production → Streaming & RTMP.

1
Choose Multi-streamNext to RTMP Streaming experience, click Edit, choose Multi-stream and save.
RTMP Streaming experience in edit mode, with three options: Default, Native and Multi-stream. Multi-stream is selected.
2
Add a key for each cameraRefresh the page. Under Stream Keys, click +, name the key after its camera and save. That name labels the camera in the room.
Stream Keys with three keys: Wide shot, marked Default, Host camera and Guest camera.
3
Point your encoders at itEvery encoder uses the same Main Stream URL, with a key of its own. Copy the URL with Copy, and a key from its Actions menu.
Stream URL and Keys, showing the Main Stream URL and its Copy button.

Direct the cameras from the room

Start the encoders and open your webinar room. Each feed arrives within a few seconds as its own camera.

The studio room's Presenter View with three RTMP cameras: Wide shot, Host camera and Guest camera.
Three encoders, three cameras
ControlWhere it isWhat it does
Pin for everyoneThe camera’s ⋮ menuThat camera leads the stage for everyone watching.
Turn On SpotlightThe icon at the top left of the cameraThat camera takes the stage. The others wait beneath it until you turn Spotlight off.
VolumeThe speaker icon on the cameraMutes that feed for you only, so you can listen to one camera at a time.

What your audience sees

Attendees get the stage you set, as it changes. Here the guest’s camera is in the spotlight.

An attendee's view of the webinar: the guest camera in the spotlight, the wide shot and host camera beneath it, and the audience chat beside the stage.
An attendee’s view
Refresh after you switch

Stream URL & Keys shows the Multi-stream URL once you refresh the page, so refresh before you copy it. Restart any encoder that was already streaming.

Run every camera from the room
Find it in your webinar under Production, Streaming & RTMP.
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Webinar: RTMP Multi-Stream by Product Update Hub