SRT latency

The SRT (Secure Reliable Transport) protocol uses a latency parameter to control the delay and packet retransmission behavior of the stream.
Here are the key points about the SRT latency parameter:

Purpose and Function

The latency parameter specifies a delay that is used to:

• Buffer packets that arrive quickly, ahead of their "time to play"
• Allow extra time for packet recovery and retransmission if packets are lost

Recommended Settings

The SRT community recommends setting the latency as follows:

• Default value should be 4 times the Round Trip Time (RTT) of the link
• For low latency optimization on good quality networks, no less than 2.5 times the RTT

Never set lower than the default of 120ms