Multistreaming allows a source stream and transcoded renditions to be pushed to multiple RTMP(S) targets, such as Twitch, Facebook Live, and YouTube Live.

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Multistream targets with the API

You can manage multistream target objects from the API - see the API reference. Each target represents a specific endpoint where a stream could be multistreamed to. Note that the creation of a multistream target itself is not enough - you also need to reference the target from the stream object that should be multistreamed. To avoid managing the separate multistream target objects, you can also create the targets inlined in the stream creation and update APIs. You can also create and remove multistream targets individually from a given stream using the Create Multistream Target and Delete Multistream Target APIs.
Any changes to multistream targets, including creating new targets, will apply only to the next active session. If you make changes while a stream is active, those changes will not apply until the current session has ended and a new session begins.

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Multistream targets in the Studio dashboard

To add, manage, and delete multistream targets, navigate to the Streams page and click on a stream name. On the stream detail page, on the Overview tab, you can view all configured targets. You must configure new multistream targets for each stream. This will apply the multistream configuration to that stream. Multistream targets do not carry over when you create new streams. To add a new target, click Create on the right side of the multistream targets section. You’ll be asked to name your target, provide the Ingest URL and a stream key, Ingest URL being the only required value. The Ingest URL and stream key should be provided by the platform that you’re streaming into and can one of: RTMP, RTMPS, or SRT protocols. Select the rendition profile that you’d like to send to that target and click Create Target. Once created, you can toggle the targets on and off. To edit a multistream target, click on the three dots to the right of the target name and then on Edit to open up the target settings. Select Update Target when you’ve completed your changes. To delete a multistream target, click on the three dots to the right of the target name and then on Delete.
Any changes to multistream targets, including creating new targets, will apply only to the next active session. If you make changes while a stream is active, those changes will not apply until the current session has ended and a new session begins.

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Understanding Multistream Performance

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Dashboard

While a session is active that has multistream targets configured, you’ll be able to see if a destination is Active or Offline.
There may be a slight delay between starting the stream and the push destinations connecting. When starting to stream to multistream targets, use these indicators to understand whether it has connected to its target(s).
On the stream page where you’ve configured your multistream targets, select the Health tab at the top. While a session is active, you’ll see the ingest rate of the source stream.

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Webhooks

There are three webhooks to help you monitor the state of your multistream targets:
  • multistream.connected: When Studio has successfully connected to the multistream target and you’re also online in the other service you are multistreaming to.
  • multistream.error: In case any error has occurred during connection to the multistream target. This means some kind of problem with the configuration or the other service you are multistreaming to.
  • multistream.disconnected: Sent after a stream is ended to indicate that Multistream has also ended for the respective target.