Low Latency Protocols and their Effect on Latency
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(DRAFT) SVTA1071: Low Latency Protocols and their Effect on Latency
In 2021, this was published about latency: “SVTA5021: Best Practices for Reducing Live Streaming Latency”as the first document in the series. Next, “SVTA1058: An Exploration into Measuring Streaming Latency” was published. We are the third in the series.
The goals of the most recent documents were to define and explain latency, Examine technical components, and review tools and techniques that can be employed within streaming workflows to measure latency (along with the relative advantages and disadvantages).
Our document is expanding on the first two by specifically talking about those things in the context of different LL streaming methods. These include HTTP Live Streaming (HLS), Dynamic Adaptive Streaming over HTTP (DASH), Low-Latency HTTP Live Streaming (LL-HLS), Low-Latency Dynamic Adaptive Streaming over HTTP (LL-DASH), Real-time Media Protocol (RTMP), and High Efficiency Streaming Protocol (HESP).
Goals and Objectives
- Define and explain latency: Clearly define and explain what latency is in the context of video live streaming, ensuring that readers have a fundamental understanding of the concept.
- Examine technical components: Explore the technical aspects of latency, including the encoding, transmission, and decoding processes, to provide a comprehensive understanding of how latency is generated in the live streaming pipeline.
- Review tools and techniques that can be employed within streaming workflows to measure latency, along with the relative advantages and disadvantages.
- The most common unicast video delivery protocols, including:
- HTTP Live Streaming (HLS)
- Dynamic Adaptive Streaming over HTTP (DASH)
- Low-Latency HTTP Live Streaming (LL-HLS)
- Low-Latency Dynamic Adaptive Streaming over HTTP (LL-DASH)
- Real-time Media Protocol (RTMP)
- High Efficiency Streaming Protocol (HESP)
- Explore latency optimization: Discuss various strategies and technologies for minimizing latency in video live streaming, offering content providers actionable insights into how they can improve the viewer experience.
- Help understand the various technologies involved in video streaming that may or may not affect the overall observed latency.
- Promote competitive advantage: Highlight the competitive advantage that content providers can gain by prioritizing low latency, encouraging them to invest in latency reduction strategies.
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