ISO/IEC 23000-21:2019/Amd 1:2021

INTERNATIONAL ISO/IEC
STANDARD 23000-21
First edition
2019-07
AMENDMENT 1
2021-06
Information technology — Multimedia
application format (MPEG-A) —
Part 21:
Visual identity management
application format
AMENDMENT 1: Conformance and
reference software
Technologies de l'information — Format pour application multimédia
(MPEG-A) —
Partie 21: Format pour application de gestion d'identité visuelle
AMENDEMENT 1: Conformité et logiciels de référence
Reference number
ISO/IEC 23000-21:2019/Amd.1:2021(E)
©
ISO/IEC 2021
ISO/IEC 23000-21:2019/Amd.1:2021(E)

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ISO/IEC 23000-21:2019/Amd.1:2021(E)

Foreword
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Subcommittee SC 29, Coding of audio, picture, multimedia and hypermedia information.
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© ISO/IEC 2021 – All rights reserved iii

ISO/IEC 23000-21:2019/Amd.1:2021(E)
Information technology — Multimedia application format
(MPEG-A) —
Part 21:
Visual identity management application format
AMENDMENT 1: Conformance and reference software

Clause 2
Add the following new references:
ISO/IEC 14496-5, Information technology — Coding of audio-visual objects — Part 5: Reference software
ISO/IEC 23008-5, Information technology — High efficiency coding and media delivery in heterogeneous
environments — Part 5: Reference software for high efficiency video coding

Subclause 6.1, fifth paragraph
Replace the first sentence with the following:
Thus, to ensure perfect decryption and reconstruction, the exact process to encrypt (and decrypt)
protected bitstream by content sensitive encryption is described in 6.2
...