StreamLive Pro

Stream from a Blackmagic Web Presenter or Streaming Encoder

Send a Blackmagic Web Presenter or Streaming Encoder to StreamLive Pro with a streaming XML file and reach every network at once: the file, the key, H.264 and fixes.

Updated November 5, 2026 · 4 min read

Blackmagic's streaming boxes, the Web Presenter models and the Blackmagic Streaming Encoder models, stream to the services in their platform list. To add StreamLive Pro to that list, you load a small streaming XML file with our address in it, then choose StreamLive Pro as the platform and paste the stream key. The box then sends one stream, and StreamLive Pro passes it on to every channel you tick.

The file format and the loading step come from Blackmagic's own developer document, Blackmagic Streaming XML File Format (January 2026 edition), checked 5 November 2026. The same document applies to the ATEM Mini models; for those, see Stream from an ATEM Mini to several networks at once.

Before you start

• A paid StreamLive Pro plan. Receiving a stream from a hardware encoder is on the paid plans; the 7-day trial streams from the browser studio. See the pricing page.
• Blackmagic's setup software on a computer on the same network as the box (Blackmagic Streaming Setup, or Web Presenter Setup on older models), with the latest update from Blackmagic's support site.
• Channels connected under Connections.

Steps

1. Open the Encoder card. In StreamLive Pro click New stream and choose Stream from software like OBS (RTMP / SRT). Open the RTMP tab and copy the address. Keep the key for step 5.
2. Write the XML file. Save a plain text file, for example streamlive.xml, with the content below. Put the address from step 1 inside url. Blackmagic's document asks for no blank lines in the file when it is sent through the network protocol, so keep it compact.

<?xml version="1.0" encoding="UTF-8"?>
<streaming>
 <service>
  <name>StreamLive Pro</name>
  <servers>
   <server>
    <name>StreamLive Pro</name>
    <url>ADDRESS-FROM-THE-RTMP-TAB</url>
   </server>
  </servers>
  <profiles default="Streaming High">
   <profile>
    <name>Streaming High</name>
    <config resolution="1080p" fps="30" codec="H264">
     <bitrate>6000000</bitrate>
     <audio-bitrate>128000</audio-bitrate>
    </config>
   </profile>
  </profiles>
 </service>
</streaming>

1. Load it. In the setup software, load the file with its load streaming settings command. Blackmagic's document says the services in the file then appear in the platform list next to the built-in ones.
2. Choose the platform. In the box's streaming settings, choose StreamLive Pro as Platform and the server named in the file.
3. Paste the key. Paste the stream key from the Encoder card into the key field. The file format also has a key element, but keeping the key out of the file means a shared file does not reveal it.
4. Tick your channels in StreamLive Pro. Switch on the destinations in the Channels list and keep the Live stream page open and in front. It checks for your stream every ten seconds and sends it out when it arrives.
5. Press On Air. Start streaming on the box. Within about ten to thirty seconds StreamLive Pro shows that the stream was detected.
6. End from StreamLive Pro. Press Stop stream to end on every network, then stop streaming on the box.

What the values in the file mean

Our ingest limits are from Cloudflare Stream: Start a live stream. The upload arithmetic is in Upload speed and bitrate for multistreaming. You can add more profiles, for example a Streaming Medium with a lower bitrate for a weak line.

What we have not checked

We have not tested a specific Blackmagic model or firmware against StreamLive Pro, and Blackmagic's document does not state the keyframe interval the box uses or whether rtmps:// addresses work, so this page uses the RTMP tab. Test with colour bars or a standby slide and one unlisted YouTube channel before an important show. If the line is lossy and your model offers SRT, the document also describes SRT servers; our SRT tab is explained in Stream with SRT from OBS, vMix or a hardware encoder.

What can go wrong

Frequently asked questions

Can a Blackmagic Web Presenter stream to YouTube and Facebook at the same time?

Through StreamLive Pro, yes. The box sends one stream to StreamLive Pro, and our servers send it to YouTube, your Facebook Page and every other channel you ticked.

Why do I need an XML file?

The box streams to the services in its platform list. Blackmagic's streaming XML file is how you add a service, here StreamLive Pro, to that list.

Can I use H.265 to save bandwidth?

No. The XML format allows it, but StreamLive Pro's ingest accepts H.264 video only.

Should the stream key go in the XML file?

It can, but it is safer to paste it in the setup software, so the file can be shared without the key.

Can I use the box during the StreamLive Pro trial?

No. Streaming from a hardware encoder is on the paid plans. The trial streams from the browser studio.

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