IEC 62676-2-1:2013

IEC 62676-2-1 ®
Edition 1.0 2013-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Video surveillance systems for use in security applications –
Part 2-1: Video transmission protocols – General requirements

Systèmes de vidéosurveillance destinés à être utilisés dans les applications de
sécurité –
Partie 2-1: Protocoles de transmission vidéo – Exigences générales

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IEC 62676-2-1 ®
Edition 1.0 2013-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Video surveillance systems for use in security applications –

Part 2-1: Video transmission protocols – General requirements

Systèmes de vidéosurveillance destinés à être utilisés dans les applications de

sécurité –
Partie 2-1: Protocoles de transmission vidéo – Exigences générales

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX W
ICS 13.320 ISBN 978-2-8322-1181-6

– 2 – 62676-2-1 © IEC:2013
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and abbreviations . 8
3.1 Terms and definitions . 8
3.2 Abbreviations . 15
4 Video transmission network architecture . 16
4.1 General . 16
4.2 Networking and connectivity . 17
4.2.1 General . 17
4.2.2 Network streaming performance: quality of service . 18
4.3 Device discovery and description . 18
4.4 Video media types and payload formats . 18
4.5 Video transport . 18
4.6 Eventing and health check . 18
5 The building block of existing standards . 19
6 VSS device model . 19
6.1 Overview . 19
6.2 Device model elements . 20
7 General IP interoperability requirements . 21
7.1 General . 21
7.2 General protocol requirements overview . 21
7.3 General high level IP video interface and protocol requirements . 21
7.3.1 General . 21
7.3.2 Versioning, capability exchange, and extensibility requirements . 22
7.3.3 Implementations . 22
7.4 Non-conformance video transmission systems and devices . 22
7.5 Mandatory documentation for the IP video interface of a VTD . 22
7.6 Video and data transport: mandatory streaming requirements . 24
7.7 Overview . 24
8 Live streaming . 25
8.1 General . 25
8.2 Media stream protocol . 25
8.2.1 Transport format . 25
8.2.2 Media transport . 25
8.2.3 Synchronization point . 27
8.3 Media control protocol . 28
8.3.1 Stream control . 28
8.3.2 RTSP . 28
8.3.3 Keep-alive method for RTSP session . 29
8.3.4 RTSP audio and video synchronization . 30
8.3.5 RTSP message example . 31
8.4 Error handling . 32
9 Playback . 32
9.1 General . 32

62676-2-1 © IEC:2013 – 3 –
9.2 RTP header extension . 32
10 Device discovery and description. 32
11 Eventing requirements . 32
Bibliography . 34

Figure 1 – Overview IP Video standard protocol . 17
Figure 2 – Functional protocol layers . 17
Figure 3 – Building block of existing standards . 19
Figure 4 – VTD example network . 20
Figure 5 – Layer structure . 24
Figure 6 – RTCP sequence . 26
Figure 7 – RTCP sender report . 27
Figure 8 – Media synchronization. 27
Figure 9 – Stream control . 28
Figure 10 – Keep alive . 30

Table 1 – RTSP methods . 29

– 4 – 62676-2-1 © IEC:2013
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
VIDEO SURVEILLANCE SYSTEMS FOR USE
IN SECURITY APPLICATIONS –
Part 2-1: Video transmission protocols –
General requirements
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
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agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Comm
...