ISO/IEC 23009-1:2022

Information technology — Dynamic adaptive streaming over HTTP (DASH) — Part 1: Media presentation description and segment formats

This document primarily specifies formats for the Media Presentation Description and Segments for dynamic adaptive streaming delivery of MPEG media over HTTP. It is applicable to streaming services over the Internet.

Technologies de l'information — Diffusion en flux adaptatif dynamique sur HTTP (DASH) — Partie 1: Description de la présentation et formats de remise des médias

General Information

• Status: Published
• Publication Date: 01-Aug-2022
• ICS: 35.040.40 - Coding of audio, video, multimedia and hypermedia information
• Technical Committee: ISO/IEC JTC 1/SC 29 - Coding of audio, picture, multimedia and hypermedia information
• Drafting Committee: ISO/IEC JTC 1/SC 29 - Coding of audio, picture, multimedia and hypermedia information
• Current Stage: 9092 - International Standard to be revised
• Completion Date: 08-Feb-2024

Relations

• Revises: ISO/IEC 23009-1:2019 - Information technology — Dynamic adaptive streaming over HTTP (DASH) — Part 1: Media presentation description and segment formats
• Effective Date: 06-Jun-2022

Standards Content (Sample)

INTERNATIONAL ISO/IEC
STANDARD 23009-1
Fifth edition
2022-08
Information technology — Dynamic
adaptive streaming over HTTP
(DASH) —
Part 1:
Media presentation description and
segment formats
Technologies de l'information — Diffusion en flux adaptatif
dynamique sur HTTP (DASH) —
Partie 1: Description de la présentation et formats de remise des
médias
Reference number
ISO/IEC 23009-1:2022(E)
© ISO/IEC 2022

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ISO/IEC 23009-1:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO/IEC 2022
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: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
  © ISO/IEC 2022 – All rights reserved

---------------------- Page: 2 ----------------------
ISO/IEC 23009-1:2022(E)
Contents
Foreword . vii
Introduction . viii
1 Scope . 1
2 Normative references . 1
3 Terms, definitions, symbols and abbreviated terms . 2
3.1 Terms and definitions . 2
3.2 Symbols and abbreviated terms . 7
3.3 Conventions . 9
4 Overview . 10
4.1 System description . 10
4.2 DASH Client model . 11
4.3 DASH data model overview . 12
4.4 Protocols . 15
4.5 Media stream and Representation properties . 16
4.5.1 Switching and Random Access Support . 16
4.5.2 Media stream access points . 16
4.5.3 Non-overlapping Segments and Subsegments . 17
4.5.4 Conforming Segment track . 18
4.6 Brands . 18
4.7 Schemes . 19
5 Media Presentation . 22
5.1 General . 22
5.2 Media Presentation Description . 22
5.2.1 General .
...

FINAL
INTERNATIONAL ISO/IEC
DRAFT
STANDARD FDIS
23009-1
ISO/IEC JTC 1/SC 29
Information technology — Dynamic
Secretariat: JISC
adaptive streaming over HTTP
Voting begins on:
2022-04-25 (DASH) —
Voting terminates on:
Part 1:
2022-06-20
Media presentation description and
segment formats
Technologies de l'information — Diffusion en flux adaptatif
dynamique sur HTTP (DASH) —
Partie 1: Description de la présentation et formats de remise des
médias
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/IEC FDIS 23009-1:2022(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS. © ISO/IEC 2022

---------------------- Page: 1 ----------------------
ISO/IEC FDIS 23009-1:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO/IEC 2022
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: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
  © ISO/IEC 2022 – All rights reserved

---------------------- Page: 2 ----------------------
ISO/IEC 23009-1:2022(E)
Contents
Foreword . vii
Introduction . viii
1 Scope . 1
2 Normative references . 1
3 Terms, definitions, symbols and abbreviated terms . 2
3.1 Terms and definitions . 2
3.2 Symbols and abbreviated terms . 7
3.3 Conventions . 9
4 Overview . 10
4.1 System description . 10
4.2 DASH Client model . 11
4.3 DASH data model overview . 12
4.4 Protocols . 15
4.5 Media stream and Representation properties . 16
4.5.1 Switching and Random Access Support . 16
4.5.2 Media stream access points . 16
4.5.3 Non-overlapping Segments and Subsegments . 17
4.5.4 Conforming Segment track . 18
4.6 Brands . 18
4.7 Schemes . 19
5 Media Presentation
...

FINAL DRAFT INTERNATIONAL STANDARD ISO/IEC 23009-1:2022(E)

2022-04-11
ISO/IEC 23009-1:2021(X2022(E)
ISO/IEC JTC 1/SC 29/WG 3
Date: 2021-10-04
Information technology — Dynamic adaptive streaming over
HTTP (DASH) — Part 1: Media presentation description and
segment formats

FDIS stage

Warning for WDs and CDs
This document is not an ISO International Standard. It is distributed for review and comment. It is subject to
change without notice and may not be referred to as an International Standard.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.

---------------------- Page: 1 ----------------------
ISO #####-#:####(X/IEC 23009-1:2022(E)
© ISO 20212022
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: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO ####2022 – All rights reserved

---------------------- Page: 2 ----------------------
ISO #####-#:####(X/IEC 23009-1:2022(E)
Contents
Foreword . vii
Introduction . viii
1 Scope . 1
2 Normative references . 1
3 Terms, definitions, symbols and abbreviated terms . 2
3.1 Terms and definitions . 2
3.2 Symbols and abbreviated terms . 8
3.3 Conventions . 10
4 Overview . 11
4.1 System description . 11
4.2 DASH Client model . 12
4.3 DASH data model overview . 13
4.4 Protocols . 16
4.5 Media stream and Representation properties . 17
4.5.1 Switching and Random Access Support . 17
4.5.2 Media stream access points . 17
4.5.3 Non-overlapping Segments and Subsegments . 18
4.5.4 Conforming Segment track . 19
4.6 Brands . 19
4.7 Schemes . 20
5 Media Presentation . 23
5.1 General . 23
5.2
...