Information technology — Multimedia application format (MPEG-A) — Part 22: Multi-image application format (MIAF)

This document specifies the Multi-Image Application Format (MIAF), which contains coded images, groups and sequences of images along with their metadata and the information about their relations to each other, all embedded in the High Efficiency Image File (HEIF) format. This document builds on the HEIF specification and defines the following: — a set of additional constraints on ISO/IEC 23008-12 (HEIF) specification, to simplify its file format options; — specific alpha plane formats; — a set of specific profiles and levels for the supported coding formats; — a set of specific metadata formats; — a set of brands, including application brands indicating conformance with specific profiles; — a set of rules for extending MIAF format to support additional coding formats, profiles, levels and metadata. This document also defines the normative behaviour for a MIAF reader and MIAF renderer. The MIAF specification is intentionally written to be extensible, and to allow for forward compatibility. The format is also permissive of the presence of other data, such as coding formats, metadata, and derived images.

Technologies de l'information — Format pour application multimédia (MPEG-A) — Partie 22: Format pour application à images multiples (MIAF)

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INTERNATIONAL ISO/IEC
STANDARD 23000-22
First edition
2019-06
Information technology — Multimedia
application format (MPEG-A) —
Part 22:
Multi-image application format (MIAF)
Technologies de l'information — Format pour application multimédia
(MPEG-A) —
Partie 22: Format pour application à images multiples (MIAF)
Reference number
©
ISO/IEC 2019
© ISO/IEC 2019
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
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO/IEC 2019 – All rights reserved

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Abbreviations. 3
5 Document organization and conventions . 4
6 MIAF concepts and processing of MIAF files . 4
6.1 General . 4
6.2 MIAF data object model . 5
6.3 MIAF image items . 5
6.4 MIAF thumbnail image items . 5
6.5 MIAF auxiliary image item . 5
6.6 MIAF reader processing model . 6
6.7 MIAF renderer processing model . 8
7 MIAF file general requirements . 9
7.1 General . 9
7.2 Box-level requirements . 9
7.2.1 Box-level requirements on image items . 9
7.2.2 Box-level requirements on image sequences and video .12
7.3 Item level requirements on image items .12
7.3.1 General.12
7.3.2 Primary item.12
7.3.3 MIAF thumbnail images .13
7.3.4 MIAF master image items that are not the primary item .13
7.3.5 MIAF auxiliary image items .13
7.3.6 Item properties .14
7.3.7 Content light level property .16
7.3.8 Mastering display colour volume property .16
7.3.9 Transformations and derived items .16
7.3.10 Metadata .16
7.3.11 Derived images and derived image items .16
7.3.12 Image grouping .19
7.4 Track-level requirements on image sequences and video .19
7.4.1 General.19
7.4.2 Track reference types .19
7.4.3 Video track-level requirements .20
7.4.4 Video track sample entry boxes .20
7.4.5 Audio track-level requirements .21
7.4.6 Auxiliary video track-level requirements .21
7.5 Association of image items and tracks .21
7.6 Metadata .21
8 Shared conditions and requirements .22
8.1 General .22
8.2 Self-containment .22
8.2.1 Image items .22
8.2.2 Image sequences and video .22
8.3 Single-layer .22
8.4 Grid-limit .22
8.5 Single-track .22
8.6 Edit-lists .23
© ISO/IEC 2019 – All rights reserved iii

8.7 Matched-duration .23
9 Profile-independent image item and sequence coding .23
10 Brands and file extensions .23
10.1 General .23
10.2 Progressive application brand .24
10.3 Animation application brand .25
10.4 Burst capture application brand .25
10.5 Fragmented alpha video brand .25
10.6 Common media fragmented brand.26
Annex A (normative) MIAF profiles .27
Bibliography .31
iv © ISO/IEC 2019 – All rights reserved

Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical
Commission) form the specialized system for worldwide standardization. National bodies that
are members of ISO or IEC participate in the development of International Standards through
technical committees established by the respective organization to deal with particular fields of
technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other
international organizations, governmental and non-governmental, in liaison with ISO and IEC, also
take part in the work.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for
the different types of document should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject
of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent
rights. Details of any patent rights identified during the development of the document will be in the
Introduction and/or on the ISO list of patent declarations received (see www .iso .org/patents) or the IEC
list of patent declarations received (see http: //patents .iec .ch).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso
.org/iso/foreword .html.
This document was prepared by Joint Technical Com
...


INTERNATIONAL ISO/IEC
STANDARD 23000-22
First edition
2019-06
Information technology — Multimedia
application format (MPEG-A) —
Part 22:
Multi-image application format (MIAF)
Technologies de l'information — Format pour application multimédia
(MPEG-A) —
Partie 22: Format pour application à images multiples (MIAF)
Reference number
©
ISO/IEC 2019
© ISO/IEC 2019
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
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO/IEC 2019 – All rights reserved

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Abbreviations. 3
5 Document organization and conventions . 4
6 MIAF concepts and processing of MIAF files . 4
6.1 General . 4
6.2 MIAF data object model . 5
6.3 MIAF image items . 5
6.4 MIAF thumbnail image items . 5
6.5 MIAF auxiliary image item . 5
6.6 MIAF reader processing model . 6
6.7 MIAF renderer processing model . 8
7 MIAF file general requirements . 9
7.1 General . 9
7.2 Box-level requirements . 9
7.2.1 Box-level requirements on image items . 9
7.2.2 Box-level requirements on image sequences and video .12
7.3 Item level requirements on image items .12
7.3.1 General.12
7.3.2 Primary item.12
7.3.3 MIAF thumbnail images .13
7.3.4 MIAF master image items that are not the primary item .13
7.3.5 MIAF auxiliary image items .13
7.3.6 Item properties .14
7.3.7 Content light level property .16
7.3.8 Mastering display colour volume property .16
7.3.9 Transformations and derived items .16
7.3.10 Metadata .16
7.3.11 Derived images and derived image items .16
7.3.12 Image grouping .19
7.4 Track-level requirements on image sequences and video .19
7.4.1 General.19
7.4.2 Track reference types .19
7.4.3 Video track-level requirements .20
7.4.4 Video track sample entry boxes .20
7.4.5 Audio track-level requirements .21
7.4.6 Auxiliary video track-level requirements .21
7.5 Association of image items and tracks .21
7.6 Metadata .21
8 Shared conditions and requirements .22
8.1 General .22
8.2 Self-containment .22
8.2.1 Image items .22
8.2.2 Image sequences and video .22
8.3 Single-layer .22
8.4 Grid-limit .22
8.5 Single-track .22
8.6 Edit-lists .23
© ISO/IEC 2019 – All rights reserved iii

8.7 Matched-duration .23
9 Profile-independent image item and sequence coding .23
10 Brands and file extensions .23
10.1 General .23
10.2 Progressive application brand .24
10.3 Animation application brand .25
10.4 Burst capture application brand .25
10.5 Fragmented alpha video brand .25
10.6 Common media fragmented brand.26
Annex A (normative) MIAF profiles .27
Bibliography .31
iv © ISO/IEC 2019 – All rights reserved

Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical
Commission) form the specialized system for worldwide standardization. National bodies that
are members of ISO or IEC participate in the development of International Standards through
technical committees established by the respective organization to deal with particular fields of
technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other
international organizations, governmental and non-governmental, in liaison with ISO and IEC, also
take part in the work.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for
the different types of document should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject
of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent
rights. Details of any patent rights identified during the development of the document will be in the
Introduction and/or on the ISO list of patent declarations received (see www .iso .org/patents) or the IEC
list of patent declarations received (see http: //patents .iec .ch).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso
.org/iso/foreword .html.
This document was prepared by Joint Technical Com
...

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