ISO/IEC 21000-22
Information technology — Multimedia framework (MPEG-21) — Part 22: User Description
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Organization: | ISO |
Publication Date: | 1 August 2019 |
Status: | active |
Page Count: | 220 |
ICS Code (Coding of audio, video, multimedia and hypermedia information): | 35.040.40 |
scope:
This document standardizes four data formats: User Description (UD), Context Description (CD), Service Description (SD), and Recommendation Description (RD). This document also specifies technologies related to loudness control and visual expression.
Document History

September 1, 2022
Information technology — Multimedia framework (MPEG-21) — Part 22: User description
This document specifies four data formats: User Description (UD), Context Description (CD), Service Description (SD), and Recommendation Description (RD). This document also specifies technologies...

ISO/IEC 21000-22
August 1, 2019
Information technology — Multimedia framework (MPEG-21) — Part 22: User Description
This document standardizes four data formats: User Description (UD), Context Description (CD), Service Description (SD), and Recommendation Description (RD). This document also specifies technologies...

July 1, 2018
Information technology - Multimedia framework (MPEG-21) - Part 22: User Description AMENDMENT 1: Reference software for MPEG-21 user description
A description is not available for this item.

November 15, 2016
Information technology - Multimedia framework (MPEG-21) - Part 22: User Description
This document standardizes the four data formats: User Description (UD), Context Description (CD), Service Description (SD), and Recommendation Description (RD).
— User Description (UD): a set of...