Revision: 1.0
Sapphire-RXD3 Setup Guide
Copyright © 2022 Domo Tactical Communications (DTC) Limited. All rights reserved.
Commercial in Confidence
Page 6-29
6.4.3
SRT (Secure Reliable Transport) Protocol
SRT is a video streaming transport protocol that delivers secure low latency streaming over noisy or
unpredictable (lossy) networks such as the public internet. SRT utilises the UDP transport protocol but
adds error checking for reliability.
If SRT streaming is required, the settings for unicast or multicast streaming will also need to be
configured, see
Section 6.4.2
Item
Notes
Mode
The
Caller
initiates the outbound call to the Listener. The Caller can be
an input (receiver) or output (sender).
The
Listener
waits for an inbound connection from the Caller. The
Listener can be an input (receiver) or output (sender).
Note
: In a one-to-one setup, it is arbitrary whether the Caller and
Listener device is the input or output. However, the input or output must
be set to Listener if it is ingesting multiple Callers.
A
Rendezvous
server will allow the delivery of messages from one
source to another. This can be used to avoid port forwarding via a
router.
Delay
The delay ca be adjusted to account for dropped packets. The delay will
depend on the round-trip time (RTT) and the packet loss. This is advised
in the web page help guide.
Encryption Passphrase
SRT includes an AES128 encrypted passphrase. This must be matched
in the input and output device.
If this is left blank, no encryption will be applied.