Information technology — High efficiency coding and media delivery in heterogeneous environments — Part 1: MPEG media transport (MMT)

This document specifies MPEG media transport (MMT) technologies, which include a single encapsulation format, delivery protocols and signalling messages for transport and delivery of multimedia data over heterogeneous packet-switched networks for multimedia services. Types of packet-switched networks supported by this document include bidirectional networks such as Internet Protocol (IP) networks and unidirectional networks such as digital broadcast networks (which may or may not use the IP). The technologies specified by this document belong to one of three functional areas of MMT: media processing unit (MPU) format, signalling messages and delivery protocol. The MPU format specifies the “mpuf” branded ISO-based media file format (ISOBMFF) encapsulating both timed and non-timed media contents. The MPU format is a self-contained ISOBMFF structure enabling independent consumption of media data, which hides codec-specific details from the delivery function. The signalling functional area specifies the formats of signalling messages carrying information for managing media content delivery and consumption, e.g. specific media locations and delivery configuration of media contents. The delivery functional area specifies the payload formats that are independent of media and codec types, which allow fragmentation and aggregation of contents encapsulated as specified by this document for delivery using packet-switched oriented transport protocols. The delivery functional area also provides an application layer transport protocol that allows for advanced delivery of media contents.

Technologies de l'information — Codage à haute efficacité et livraison des medias dans des environnements hétérogènes — Partie 1: Transport des médias MPEG

General Information

Status
Published
Publication Date
12-Jan-2023
Current Stage
6060 - International Standard published
Start Date
13-Jan-2023
Due Date
22-Mar-2022
Completion Date
13-Jan-2023
Ref Project

Relations

Buy Standard

Standard
ISO/IEC 23008-1:2023 - Information technology — High efficiency coding and media delivery in heterogeneous environments — Part 1: MPEG media transport (MMT) Released:13. 01. 2023
English language
234 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (Sample)

INTERNATIONAL ISO/IEC
STANDARD 23008-1
Third edition
2023-01
Information technology — High
efficiency coding and media delivery
in heterogeneous environments —
Part 1:
MPEG media transport (MMT)
Technologies de l'information — Codage à haute efficacité et livraison
des medias dans des environnements hétérogènes —
Partie 1: Transport des médias MPEG
Reference number
ISO/IEC 23008-1:2023(E)
© ISO/IEC 2023
---------------------- Page: 1 ----------------------
ISO/IEC 23008-1:2023(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO/IEC 2023

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
© ISO/IEC 2023 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/IEC 23008-1:2023(E)
Contents Page

Foreword ......................................................................................................................................................................................................................................vii

Introduction ...........................................................................................................................................................................................................................viii

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ..................................................................................................................................................................................... 1

3 Terms, definitions and abbreviated terms .............................................................................................................................. 1

3.1 Terms and definitions ...................................................................................................................................................................... 1

3.2 Abbreviated terms .............................................................................................................................................................................. 4

4 Conventions ............................................................................................................................................................................................................... 6

5 Overview ....................................................................................................................................................................................................................... 6

6 MMT data model ................................................................................................................................................................................................... 9

6.1 General ........................................................................................................................................................................................................... 9

6.2 Package .......................................................................................................................................................................................................... 9

6.3 Asset .............................................................................................................................................................................................................. 10

6.4 Media processing unit (MPU) ................................................................................................................................................. 11

6.5 Asset delivery characteristics................................................................................................................................................12

6.5.1 General .....................................................................................................................................................................................12

6.5.2 ADC descriptors ...............................................................................................................................................................12

6.5.3 Syntax ........................................................................................................................................................................................ 13

6.5.4 Semantics ............................................................................................................................................................................... 14

6.6 Bundle delivery characteristics ...........................................................................................................................................15

6.6.1 General .....................................................................................................................................................................................15

6.6.2 BDC descriptors ................................................................................................................................................................ 15

6.6.3 Syntax ........................................................................................................................................... .............................................15

6.6.4 Semantics ............................................................................................................................................................................... 16

7 ISOBMFF-based MPU .....................................................................................................................................................................................17

7.1 General ........................................................................................................................................................................................................ 17

7.2 MPU brand definition .................................................................................................................................................................... 18

7.3 MPU box ..................................................................................................................................................................................................... 19

7.3.1 Definition ............................................................................................................................................................................... 19

7.3.2 Syntax ........................................................................................................................................... ............................................. 19

7.3.3 Semantics ............................................................................................................................................................................... 20

8 MMT hint track ...................................................................................................................................................................................................20

8.1 General ........................................................................................................................................................................................................ 20

8.2 Sample description format ....................................................................................................................................................... 21

8.2.1 Definition ............................................................................................................................................................................... 21

8.2.2 Syntax ........................................................................................................................................................................................ 21

8.2.3 Semantics ............................................................................................................................................................................... 21

8.3 Sample format ...................................................................................................................................................................................... 21

8.3.1 Definition ............................................................................................................................................................................... 21

8.3.2 Syntax ........................................................................................................................................... ............................................. 21

8.3.3 Semantics ............................................................................................................................................................................... 22

9 Packetized delivery of Package .........................................................................................................................................................23

9.1 General ........................................................................................................................................................................................................23

9.2 MMT protocol ....................................................................................................................................................................................... 23

9.2.1 General .....................................................................................................................................................................................23

9.2.2 Structure of an MMTP packet .............................................................................................................................. 24

9.2.3 Semantics ............................................................................................................................................................................... 25

9.2.4 MMTP session description information .....................................................................................................29

9.3 MMTP payload .....................................................................................................................................................................................29

9.3.1 General .....................................................................................................................................................................................29

9.3.2 MPU mode .............................................................................................................................................................................. 30

iii
© ISO/IEC 2023 – All rights reserved
---------------------- Page: 3 ----------------------
ISO/IEC 23008-1:2023(E)

9.3.3 Generic file delivery mode ...................................................................................................................................... 32

9.3.4 Signalling message mode ......................................................................................................................................... 36

9.4 MMTP operation ................................................................................................................................................................................ 37

9.4.1 General ..................................................................................................................................................................................... 37

9.4.2 Delivering MPUs ...............................................................................................................................................................38

9.4.3 Delivering generic objects .......................................................................................................................................40

9.4.4 Header compression for MMTP packet........................................................................................................ 43

10 Signalling ..................................................................................................................................................................................................................45

10.1 General ........................................................................................................................................................................................................ 45

10.2 Signalling message format ........................................................................................................................................................ 45

10.2.1 General ..................................................................................................................................................................................... 45

10.2.2 Syntax ........................................................................................................................................................................................ 45

10.2.3 Semantics ...............................................................................................................................................................................46

10.3 Signalling messages for Package consumption ......................................................................................................46

10.3.1 General .....................................................................................................................................................................................46

10.3.2 PA message ........................................................................................................................................................................... 47

10.3.3 MPI message ........................................................................................................................................................................48

10.3.4 MPT message ......................................................................................................................................................................49

10.3.5 CRI message .........................................................................................................................................................................50

10.3.6 DCI message ......................................................................................................................................................................... 51

10.3.7 PA table .................................................................................................................................................................................... 52

10.3.8 MPI table ................................................................................................................................................................................. 53

10.3.9 MP table ................................................................................................................................................................................... 56

10.3.10 CRI table .................................................................................................................................................................................. 59

10.3.11 DCI table ..................................................................................................................................................................................60

10.3.12 Layout Configuration Table ................................................................................................................................... 61

10.3.13 SSWR message...................................................................................................................................................................63

10.3.14 LS message ............................................................................................................................................................................64

10.3.15 LR message ...........................................................................................................................................................................65

10.3.16 SI table ......................................................................................................................................................................................66

10.4 Signalling messages for Package delivery ................................................................................................................... 70

10.4.1 Hypothetical receiver buffer model (HRBM) message ................................................................. 70

10.4.2 Measurement configuration (MC) message ............................................................................................ 71

10.4.3 ARQ configuration (AC) message .....................................................................................................................73

10.4.4 ARQ feedback (AF) message ..................................................................................................................................74

10.4.5 Reception quality feedback (RQF) message ...........................................................................................77

10.4.6 NAM feedback (NAMF) message ....................................................................................................................... 79

10.4.7 Low delay consumption (LDC) message ....................................................................................................81

10.4.8 Hypothetical receiver buffer model (HRBM) removal message ...........................................82

10.4.9 ADC message .......................................................................................................................................................................84

10.4.10 NAT_Keepalive (NK) message .............................................................................................................................87

10.4.11 Media Resource Identification (MRI) message ....................................................................................88

10.4.12 Consumption reporting (CR) message .........................................................................................................90

10.4.13 Distributed Resource Identification (DRI) message ....................................................................... 91

10.4.14 Distributed Signaling Information (DSI) message ............................................................................94

10.4.15 Bandwidth Probing reQuest (BPQ) message .........................................................................................97

10.4.16 Bandwidth Probing Response (BPR) message .....................................................................................98

10.4.17 Pacing Buffer Removal Rate (PRR) message .......................................................................................100

10.4.18 Pacing Buffer Status Feedback (PSF) message.................................................................................. 101

10.4.19 Cell congestion information messages .....................................................................................................102

10.4.20 MMT Transition Request (MTR) message .............................................................................................103

10.4.21 MMT Transition Notification (MTN) message ...................................................................................105

10.4.22 Asset Change Request (ACR) message ......................................................................................................109

10.4.23 CMAF Presentation Description (CPD) Messages ...........................................................................112

10.4.24 Content Selection (CS) Message ......................................................................................................................113

10.4.25 RTSP message ................................................................................................................................................................. 114

10.4.26 VAST/VMAP Message ...............................................................................................................................................115

10.4.27 Service List (SL) information message ..................................................................................................... 117

© ISO/IEC 2023 – All rights reserved
---------------------- Page: 4 ----------------------
ISO/IEC 23008-1:2023(E)

10.5 Descriptors........................................................................................................................................................................................... 119

10.5.1 CRI descriptor ................................................................................................................................................................. 119

10.5.2 MPU timestamp descriptor ................................................................................................................................. 119

10.5.3 Dependency descriptor ................................... ........................................................................................................120

10.5.4 GFDT descriptor ............................................................................................................................................................121

10.5.5 SI descriptor .....................................................................................................................................................................123

10.5.6 MMT Service Descriptor ........................................................................................................................................124

10.5.7 Mobile information descriptor .........................................................................................................................127

10.5.8 Media quality descriptor .......................................................................................................................................128

10.5.9 MPU Presentation Region Descriptor ........................................................................................................129

10.5.10 Asset Group Descriptor ..........................................................................................................................................130

10.5.11 Access Network Descriptor ................................................................................................................................131

10.5.12 Subtitle Change descriptor ..................................................................................................................................132

10.5.13 AT descriptor ...................................................................................................................................................................135

10.6 Syntax element groups ..............................................................................................................................................................136

10.6.1 MMT_general_location_info ...............................................................................................................................136

10.6.2 asset_id .................................................................................................................................................................................139

10.6.3 Identifier mapping ......................................................................................................................................................139

10.6.4 MIME type .......................................................................................................................................................................... 141

10.7 ID and tags values .......................................................................................................................................................................... 141

11 Hypothetical receiver buffer model (HRBM) ................................................................................................................. 144

11.1 General .....................................................................................................................................................................................................144

11.2 FEC decoding buffer .....................................................................................................................................................................144

11.3 De-jitter buffer .................................................................................................................................................................................. 145

11.4 MMTP packet decapsulation buffer ............................................................................................................................... 145

11.5 Usage of HRBM .................................................................................................................................................................................146

11.6 Estimation of end-to-end delay and buffer requirement ............................................................................146

11.7 HRBM signalling ..............................................................................................................................................................................146

11.8 HRBM with pacing buffer ........................................................................................................................................... .............146

12 Cross layer interface (CLI) ...................................................................................................................................................................147

12.1 General ..................................................................................................................................................................................................... 147

12.2 Cross layer information ............................................................................................................................................................ 147

12.2.1 General .................................................................................................................................................................................. 147

12.2.2 Top-down QoS information ................................................................................................................................. 147

12.2.3 Bottom-up QoS information ............................................................................................................................... 147

12.2.4 Network abstraction for media (NAM) .................................................................................................... 147

12.2.5 Syntax ........................................................................................................................................... ..........................................148

12.2.6 Semantics ............................................................................................................................................................................148

13 MMTP Session Setup and Control over Unicast ............................................................................................................ 149

13.1 Session Description for MMTP ........................................................................................................................................... 149

13.1.1 MMTP Protocol Identifier .....................................................................................................................................150

13.1.2 Object Flow Semantics ............................................................................................................................................150

13.1.3 Object Flow Descriptors ........................................................................................................................................150

13.1.4 SDP Syntax Examples ...............................................................................................................................................151

13.2 RTSP ...........................................................................................................................................................................................................151

13.2.1 General ...............................................................................................................................................................

...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.