Information technology — JPEG XS low-latency lightweight image coding system — Part 3: Transport and container formats

This document defines transport and container formats for JPEG XS codestreams as specified in ISO/IEC 21122-1. It defines file formats for working with still image and motion image sequence files on computer platforms and gives guidance on how to embed the codestream in transport streams, allowing internet-based communication. This document uses already existing specifications for file formats and extends them for the embedding of JPEG XS codestreams.

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Current Stage
4099 - Full report circulated: DIS approved for registration as FDIS
Completion Date
16-Feb-2024
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International
Standard
ISO/IEC 21122-3
Third edition
Information technology — JPEG
XS low-latency lightweight image
coding system —
Part 3:
Transport and container formats
PROOF/ÉPREUVE
Reference number
ISO/IEC 21122-3:2024(en) © ISO/IEC 2024

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ISO/IEC 21122-3:2024(en)
COPYRIGHT PROTECTED DOCUMENT
© ISO/IEC 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
PROOF/ÉPREUVE
© ISO/IEC 2024 – All rights reserved
ii

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ISO/IEC 21122-3:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms. 3
4.1 Symbols .3
4.2 Abbreviated terms .3
4.3 Naming conventions for numerical values .3
5 Conformance . 4
6 Colour specification . 4
7 Organization of the document . 4
Annex A (normative) Syntax elements for JPEG XS compressed content . 5
Annex B (normative) Use of JPEG XS codestreams in still image file format - JXS .31
Annex C (normative) Use of JPEG XS codestreams in the ISOBMFF - Motion JPEG XS.36
Annex D (normative) Use of JPEG XS codestreams in the HEIF image file format .40
Annex E (normative) Use of JPEG XS codestreams outside of file formats . 47
Bibliography .49
PROOF/ÉPREUVE
© ISO/IEC 2024 – All rights reserved
iii

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ISO/IEC 21122-3:2024(en)
Foreword
ISO (the International Organization for Standardization) and IEC (the International Ele
...

ISO /IEC PRF 21122-3
ISO/IEC JTC 1/SC 29 /WG 1 N100731
th
102 Meeting – San Francisco – January 2024


ISO/IEC JTC 1/SC 29/WG 1
(& ITU-T SG16)

Coding of Still Pictures
JBIG JPEG
Joint Bi-level Image      Joint Photographic
Experts Group       Experts Group



rd
TITLE:  IS Text of ISO/IEC 21122-3 3 Edition

SOURCE:  ICQ subgroup

EDITORS:  Siegfried Fößel (siegfried.foessel@iis.fraunhofer.de)
Thomas Richter (thomas.richter@iis.fraunhofer.de)
PROJECT:  ISO/IEC 21122-3 (JPEG XS)

STATUS:  IS

REQUESTED ACTION: For publication

DISTRIBUTION: WG1


Contact:
ISO/IEC JTC 1/SC 29/WG 1 Convener – Prof. Touradj Ebrahimi
EPFL/STI/IEL/GR-EB, Station 11, CH-1015 Lausanne, Switzerland
Tel: +41 21 693 2606, Fax: +41 21 693 7600, E-mail: Touradj.Ebrahimi@epfl.ch

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ISO/IEC 21122-3:2022(E)
ISO/IEC JTC 1/SC 29/WG 1
Secretariat: JISC
Date: 2023-042024-06-10
Information technology — JPEG XS low-latency lightweight image
coding system – —
Part 3:
Transport and container formats
FDIS stage

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ISO/IEC PRF 21122--3:2022(E2024(en)
© ISO 2022/IEC 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication
may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying,
or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO
at the address below or ISO'sISO’s member body in the country of the requester.
ISO Copyright Officecopyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: + 41 22 749 01 11
Email: copyright@iso.org
E-mail: copyright@iso.org
Website: www.iso.orgwww.iso.org
Published in Switzerland.
© ISO/IEC 2022 – All rights reserved iii
© ISO/IEC 2024 – All rights reserved
iii

---------------------- Page: 3 ----------------------
ISO/IEC PRF 21122--3:2022(E2024(en)
Contents
Foreword . v
Introduction . vii
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Symbols and abbreviated terms . 3
4.1 Symbols . 3
4.2 Abbreviated terms . 3
4.3 Naming conventions for numerical values . 4
5 Conformance . 4
6 Colour specification . 4
7 Organization of the document . 5
Annex A (normative) Syntax elements for JPEG XS compressed content . 6
Annex B (normative) Use of JPEG XS codestreams in still image file format - JXS . 38
Annex C (normative) Use of JPEG XS codestreams in the ISOBMFF - Motion JPEG XS . 46
Annex D (normative) Use of JPEG XS codestreams in the HEIF image file format . 52
Annex E (normative) Use of JPEG XS codestreams outside of file formats . 61
Bibliography . 63

iv © ISO/IEC 2022 – All rights reserved
© ISO/IEC 2024 – All rights reserved
iv

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ISO/IEC PRF 21122--3:2022(E2024(en)
Foreword
1 Scope .
...

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