Tuesday, December 12, 2023

Enhancements for DASH

At the 133rd MPEG meeting, held in January 2021, MPEG Systems promoted Part 8 of Dynamic Adaptive Streaming over HTTP (DASH) also referred to as Session-based DASH (ISO/IEC 23009-8) to its final stage of standardization (i.e., Final Draft International Standard (FDIS)).

Historically, in DASH, every client uses the same manifest, as it best serves the scalability of the service. However, there have been increasing requests from the industry to enable customized manifests for enabling personalized services. MPEG Systems has standardized a solution to this problem without sacrificing scalability, resulting in ISO/IEC 23009-8 Session-based DASH. ISO/IEC 23009-8 adds a mechanism to the Media Presentation Description (MPD) to refer to another document, called Session-based Description (SBD), which allows per-session information. The DASH client can use this information (i.e., variables and their values) provided in the SBD to derive the URLs for HTTP GET requests.

Visit https://www.mpegstandards.org/ 

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