Information technology — Coding of audio-visual objects — Part 30: Timed text and other visual overlays in ISO base media file format

This document describes the carriage of some forms of timed text and subtitle streams in files based on ISO/IEC 14496-12 (the ISO base media file format). The documentation of these forms does not preclude other definition of carriage of timed text or subtitles; see, for example, 3GPP Timed Text (3GPP TS 26.245), or the carriage of captioning information embedded in a media stream of another type (see Annex A).

Technologies de l'information — Codage des objets audiovisuels — Partie 30: Texte temporisé et autres recouvrements visuels dans le format ISO de base pour les fichiers médias

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Status
Published
Publication Date
06-Nov-2018
Current Stage
9060 - Close of review
Start Date
04-Jun-2029
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ISO/IEC 14496-30:2018 - Information technology -- Coding of audio-visual objects
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INTERNATIONAL ISO/IEC
STANDARD 14496-30
Second edition
2018-11
Information technology — Coding of
audio-visual objects —
Part 30:
Timed text and other visual overlays
in ISO base media file format
Technologies de l'information — Codage des objets audiovisuels —
Partie 30: Texte temporisé et autres recouvrements visuels dans le
format ISO de base pour les fichiers médias
Reference number
ISO/IEC 14496-30:2018(E)
©
ISO/IEC 2018

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ISO/IEC 14496-30:2018(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO/IEC 2018
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 2018 – All rights reserved

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ISO/IEC 14496-30:2018(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and abbreviated terms . 1
3.1 Terms and definitions . 1
3.2 Abbreviated terms . 2
4 General definitions . 2
4.1 Layout . 2
4.2 Timing . 3
4.3 Language . 3
4.4 Resources shared by multiple samples . 4
4.5 Associating timed text tracks. 4
5 Timed Text Markup Language (TTML) . 4
5.1 General . 4
5.2 Layout . 4
5.3 Timing . 4
5.4 Track format .
...

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