ISO/IEC 23009-9:2025

Information technology — Dynamic adaptive streaming over HTTP (DASH) — Part 9: Redundant encoding and packaging for segmented live media (REaP)

Scope

This document specifies formats for redundant encoding and packaging of live segmented media (REaP).
This document specifies:
a)       formats for Interchangeable Live Media Ingest and stream announcement;
b)       format and segmentation strategy to generate interchangeable segments;
c)        formats for generating interchangeable media presentation descriptions or playlists;
d)       formats for efficient cloud storage access and archiving of live segmented media.
e)       a protocol for communicating media descriptor files and fragmented media between encoders and packagers.
REaP enables the following:
1)       failover support and rejoining of distributed components in the workflow (see Annex E);
2)       workflows for live with dynamic ad insertion (DAI) with a decisioning system.
3)       workflows with digital rights management (DRM) and content protection.
4)       Mixing file and live inputs.
This document specifies additional constraint to formats defined in ISO/IEC 14496-12, ISO/IEC 23009-1, ISO/IEC 23000-19 and IETF RFC 8216.