Set up an SRT stream using rendezvous mode

Secure Reliable Transport (SRT) is an open-source streaming protocol that offers quality, low latency streaming to CDNs and other SRT enabled decoders across unreliable Internet connections via UDP.

The easiest way to establish a link between the SRT source and destination devices is to use rendezvous mode. In rendezvous mode, both the SRT source and destination device are ready to establish the SRT connection as soon as an SRT stream starts.

When you're configuring an SRT stream on Unify, you can also adjust the recovery bandwidth overhead using the Admin panel. This setting defines how much of the stream's total bandwidth is dedicated for the exchange of SRT control and recovery packets between the source and destination. Ensure that the total SRT stream bitrate (i.e. the bandwidth required for the stream plus the recovery bandwidth overhead) is less than the network bandwidth you have available.

Set up Unify as a streaming source in rendezvous mode using the Admin panel

  1. Log in to the Admin panel as admin, see Connect to the Admin panel.
  2. From the Channel(s) menu, select the channel and click Streaming. The Streaming configuration page opens.
  3. Click New stream and choose SRT push. The new stream with the default name Stream 1 is created.
  4. Click the stream name to expand the stream settings.
  5. In the Connection mode field, select Rendezvous.
  6. Enter the URL of the SRT destination (decoder) using the format srt://<decoder-ip-address>:<port>, where the <decoder-ip-address> and <port> values are provided by the CDN, media server, or an SRT decoder device such as a second Unify at the destination.
  7. (Optional) Check Encryption and choose the AES key length if the SRT destination requires AES encryption. These settings must match the encryption settings of the destination device, see Set AES encryption and a passphrase for SRT.
  8. (Optional) If the SRT destination has a required security Passphrase along with the AES encryption, you can enter that here.
  9. (Optional) In the Latency field adjust the amount of latency to apply to the stream. The default value is 125 ms.

    10. We recommend using the default latency and recovery bandwidth overhead values for an initial test stream. After you perform a test stream, you can determine the Quality of Service (QoS) and calculate the latency requirements. To set the SRT stream latency, see Adjust latency and view the SRT stream status.

  10. (Optional) In the Recovery bandwidth overhead field, adjust the % value of the bandwidth that's dedicate for SRT control and recovery packets. The default value is 25%.
  11. (Optional) Rename the stream. Click the current name and enter a different name, then press Enter.

    12. Refresh your browser if the new stream name doesn't immediately display.

  12. Click Apply.
  13. When your ready to start streaming, click Start

What's next?

If you also need to set up Unify as an SRT destination and ingest an SRT stream from a remote source, you must add the SRT stream as a input, see Connect an SRT stream as an input.