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How to Connect ATEM Mini Pro to Castr

We’ll show you how to connect the ATEM Mini Pro to your All in One Streams and Multistream projects.

Govinda Sunil avatar
Written by Govinda Sunil
Updated over a week ago

The ATEM Mini Pro is a powerful tool for video switching and integrating with multiple game consoles. We’ll show you how to connect the ATEM Mini Pro to your live stream projects.

Connecting via RTMP

Step 1: Connect the ATEM Mini Pro to Castr

  1. Open the Black Magic Software Control program on your computer

  2. Click the Output tab > Live Stream > under Platform, select Castr

  3. Refer to the settings below:

  • Platform: Castr

  • Server: Choose the server closest to you or choose Auto.

  • Key: [Your Castr stream key]

  • Quality: Streaming Medium (or any mode of your choice)

Click ON AIR. The ATEM will start pushing streams to Castr. You should be able to see the preview on your Castr dashboard immediately.

Connecting via SRT

If you are connecting via SRT, then toggle off the password from the stream key.

Connecting via Custom SRT

  1. Obtain your stream ID, which should look like this:
    #!::r=live_1234567891234567899,password=123456789,m=publish

  2. Identify the r and m values from the stream ID. In this example, they are:

    • r=live_1234567891234567899

    • m=publish

  3. Add these values to the Web Presenter Custom XML as follows:

<server>
<name>Castr SRT Frankfurt</name>
<url>srt://fr.castr.io:9998</url>
<srt-extensions>
<stream-id>
<item key="r" value="live_1234567891234567899"/>
<item key="m" value="publish"/>
<item key="latency" value="200"/>
</stream-id>
</srt-extensions>
</server>

Make sure to replace live_1234567891234567899, publish and server url with your actual stream ID values.

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