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. https://www.haivision.com/blog/live-video-streaming/srt-live-stream-internet-other-networks/
blog article
USING SRT TO LIVE STREAM OVER THE INTERNET AND OTHER NETWORKS
SRT (Secure Reliable Transport) was initially developed by our team of IP and video experts to address the main challenges of streaming content over the internet: security and reliability. Security is a large concern. Legacy protocols for broadcast contribution and distribution including RTMP and UDP lack built-in encryption or security mechanisms. SRT fixed this by including the industry standard AES encryption algorithm as an integral part of its software stack. Another challenge encountered when streaming content over the internet is reliability. Though UDP is more bandwidth efficient than RTMP, (which is based on TCP) lost packets are not recovered and therefore video quality suffers. RTMP is more reliable as it can recover lost packets, but latency is greater because of its inherent congestion control. SRT greatly improves upon these protocols by including ARQ (Automatic Repeat request) error detection and correction between the sender and receiver. If the receiver does not acknowledge reception of a packet, the sender will automatically resend it. READ MORE