[JIL] SRT (“Secure Reliable Transport”) Channel v.6.1

Owned by Christian Schabasser
Dec 06, 2023
2 min read

Generally, a Video Mode has to be selected for an SRT Channel (same as for NDI®5 Channels), as the Video Mode setting defines the output format.

Please note that Capture Presets can change the output format again, if that is the intended behaviour of such a Preset. Normally, a Capture Preset follows the Video Mode setting.

Allow conversion from different modes and/or frame rates to the above video mode

With the “Allow conversion from different modes and/or frame rates to the above video mode” setting, you can ensure that the incoming SRT stream gets converted to the given Video Mode. This means that, that an incoming SRT signal in the format of 1080i2997, will be converted to 1080p25 (Video Mode) if this setting is enabled.

When this setting is disabled for an SRT channel, then you will see a “No Signal” Error Message within Just Control, when the incoming SRT signal/stream does not match the selected Video Mode.

Connection Mode

The SRT Connection Mode (SRT Stream Type) is an essential setting, as it has to match with the SRT source. You can choose between three different options:

  • Caller: Connect to the specified host and port.

  • Listener: Listen on the specified port on all network interface adapters of the just:in linux appliance. The host will be ignored.

  • Rendezvous: Connect to the specified host and port. The other side has to be set to Rendezvous Connection Mode as well, with an identical port number specified. This Connection Mode allows connecting through most firewalls automatically.

Minimum Latency in ms

This setting specifies the latency of the SRT connection in milliseconds to adapt to unforeseen network congestions.

Note that this setting should be the same on both SRT ends of an SRT connection.

Passphrase (Optional)

This is the field where you can specify a password (Passphrase) to encrypt the SRT connection. The password (Passphrase) has to be identical on both sides of the SRT connection.

Stream ID (Optional)

Stream ID which may be required by the streaming provider to uniquely identify the SRT stream.

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