ISO/IEC 14496-15:2019

INTERNATIONAL ISO/IEC
STANDARD 14496-15
Fifth edition
2019-09
Information technology — Coding of
audio-visual objects —
Part 15:
Carriage of network abstraction layer
(NAL) unit structured video in the ISO
base media file format
Technologies de l'information — Codage des objets audiovisuels —
Partie 15: Transport de vidéo structurée en unités NAL sur la couche
réseau au format ISO de base pour les fichiers médias
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
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Published in Switzerland
ii © ISO/IEC 2019 – All rights reserved

Contents Page
Foreword .vi
Introduction .vii
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and abbreviated terms . 1
3.1 Terms and definitions . 1
3.2 Abbreviated terms . 7
4 General definitions . 8
4.1 Overview . 8
4.2 Elementary stream structure . 8
4.3 Sample and configuration definition . 9
4.3.1 General. 9
4.3.2 Canonical order and restrictions . 9
4.3.3 Sample format .10
4.3.4 Optional boxes in the sample entry .11
4.4 Video track structure .11
4.5 Template fields used.11
4.6 Visual width and height .11
4.7 Decoding time (DTS) and composition time (CTS) .12
4.8 Sample groups on random access recovery points 'roll' and random access
points 'rap ' .12
4.9 Hinting .12
4.10 On change of sample entry .12
4.11 SEI information box .14
4.11.1 Definition .14
4.11.2 Syntax .14
4.11.3 Semantics .14
4.12 Post-decoder requirements scheme for signalling of SEI .14
4.12.1 General.14
4.12.2 Definition .15
5 AVC elementary streams and sample definitions .15
5.1 Overview .15
5.2 Elementary stream structure .15
5.3 Sample and configuration definition .18
5.3.1 Overview .18
5.3.2 Canonical order and restrictions .18
5.3.3 Decoder configuration information .19
5.4 Derivation from ISO base media file format .22
5.4.1 AVC file type and identification .22
5.4.2 AVC video stream definition.23
5.4.3 AVC parameter set stream definition .24
5.4.4 Parameter sets .25
5.4.5 Sync sample .26
5.4.6 Shadow sync .26
5.4.7 Layering and sub-sequences .27
5.4.8 Alternate streams and switching pictures .30
5.4.9 Definition of a sub-sample for AVC .33
6 SVC elementary stream and sample definitions .33
6.1 Overview .33
6.2 Elementary stream structure .34
6.3 Use of the plain AVC file format .35
6.4 Sample and configuration definition .35
© ISO/IEC 2019 – All rights reserved iii

6.4.1 Overview .35
6.4.2 Canonical order and restrictions .35
6.5 Derivation from the ISO base media file format .37
6.5.1 SVC track structure .37
6.5.2 Data sharing and extraction .37
6.5.3 SVC video stream definition .38
6.5.4 SVC visual width and height .40
6.5.5 Sync sample .40
6.5.6 Shadow sync .41
6.5.7 Independent and disposable samples box.41
6.5.8 Sample groups on random access recovery points 'roll' and random
access points 'rap ' .41
6.5.9 Definition of a sub-sample for SVC .41
7 MVC and MVD elementary stream and sample definitions .43
7.1 Overview .43
7.2 Overview of MVC or MVD storage .44
7.3 MVC and MVD elementary stream structures .46
7.4 Use of the plain AVC file format .48
7.5 Sample and configuration definition .48
7.5.1 Overview .48
7.5.2 Canonical order and restriction .48
7.5.3 Decoder configuration record .48
7.6 Derivation from the ISO base media file format .51
7.6.1 MVC and MVD track structures .51
7.6.2 Reconstruction of an access unit.
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