Video Streaming Protocols and Delivery Methods for Physical Security

A Reference Guide for Networked Video Systems

Media Coding | Session Control | Transport | Delivery | Application

Network video systems combine media coding, session control, transport, delivery and application services. This reference guide from the Security Industry Association (SIA) explains how those functions fit together and connects physical security requirements to candidate mechanisms. It covers live viewing and archive review. Selection is based on the complete media path, required interoperability and measured behavior.

This guide covers:

• Scope and functional categories
• Codec compatibility and developments
• RTSP and WebRTC
• HTTP delivery with HLS and DASH
• SRT, RIST and QUIC
• Comparison of the core technologies
• Requirements mapped to candidate mechanisms
• Latency, reliability and capacity
• Integration and media protection
• Evidence-based evaluation procedure
• Specification status and implementation terms

This guide was produced by SIA’s Video and Vision Subcommittee, which reviews, develops, promotes and advocates for the adoption of relevant industrywide standards relating to video. SIA thanks SIA Video and Vision Subcommittee Chair Jacob Hengel (chief technology officer and board member at YourSix), and the members of the subcommittee for contributing insights that shaped the development of this guide.