SIST EN 62261-1:2007

SLOVENSKI SIST EN 62261-1:2007

STANDARD
marec 2007
Televizijski metapodatki - 1. del: Struktura slovarja metapodatkov (IEC 62261-
1:2005)
Television METADATA - Part 1: Metadata dictionary structure (IEC 62261-1:2005)
ICS 33.160.01; 35.040 Referenčna številka
SIST EN 62261-1:2007(en)
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

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EUROPEAN STANDARD
EN 62261-1

NORME EUROPÉENNE
December 2006
EUROPÄISCHE NORM

ICS 33.160; 35.040


English version


Television METADATA
Part 1: Metadata dictionary structure
(IEC 62261-1:2005)


Métadonnées des applications télévision Fernseh-Metadaten
Partie 1: Structure du dictionnaire des Teil 1: Metadaten-Verzeichnisstruktur
métadonnées (IEC 62261-1:2005)
(CEI 62261-1:2005)




This European Standard was approved by CENELEC on 2006-12-01. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in two official versions (English and German). A version in any other language
made by translation under the responsibility of a CENELEC member into its own language and notified to the
Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, the Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels


© 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62261-1:2006 E

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EN 62261-1:2006 - 2 -
Foreword
The text of the International Standard IEC 62261-1:2005, prepared by Technical Area 6: Higher data rate
storage media, data structure and equipment, of IEC TC 100, Audio, video and multimedia systems and
equipment, was submitted to the formal vote and was approved by CENELEC as EN 62261-1 on
2006-12-01 without any modification.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
(dop) 2007-12-01
national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2009-12-01
with the EN have to be withdrawn
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 62261-1:2005 was approved by CENELEC as a European
Standard without any modification.
__________

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- 3 - EN 62261-1:2006
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.

Publication Year Title EN/HD Year

1) 2)
IEC 62261-2 - Television METADATA EN 62261-2 2006
Part 2: Data encoding protocol using key-
length-value


3)
IEC 62261-3 - Television METADATA - -
Part 3: Universal labels for unique
identification of digital data




1)
Undated reference.
2)
Valid edition at date of issue.
3)
Deleted from IEC work programme.

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INTERNATIONAL IEC


STANDARD 62261-1





First edition
2005-08


Television METADATA –
Part 1:
Metadata dictionary structure

 IEC 2005  Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale M
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue

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– 2 – 62261-1  IEC:2005(E)
CONTENTS
FOREWORD.3

1 Scope.5
2 Normative references .5
3 Metadata dictionary structure .5
3.1 General .5
3.2 Compatibility with other metadata structures .6
3.3 Individual metadata classes .6
3.4 Dictionary element structure and format .10
3.5 Metadata dictionary structure maintenance.11

Annex A (normative) Glossary of terms.12

Figure 1 – Metadata class structure .7

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62261-1  IEC:2005(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

TELEVISION METADATA –

Part 1: Metadata dictionary structure


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
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
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 Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62261-1 has been prepared by Technical Area 6: Higher data rate
storage media, data structures and equipment, of IEC technical committee 100: Audio, video
and multimedia systems and equipment.
This standard cancels and replaces IEC/PAS 62261 published in 2001.
This first edition constitutes a technical revision.
The text of this standard is based on the following documents:
CDV Report on voting
100/853/CDV 100/954/RVC

Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

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– 4 – 62261-1  IEC:2005(E)
IEC 62261 consists of the following parts, under the general title Television metadata:
Part 1: Metadata dictionary structure
Part 2: Data encoding protocol using key-length-value
Part 3: Universal labels for unique identification of digital data
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.

A bilingual version of this publication may be issued at a later date.

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62261-1  IEC:2005(E) – 5 –
TELEVISION METADATA –

Part 1: Metadata dictionary structure



1 Scope
The metadata dictionary structure defined in this part of IEC 62261 covers the use of
metadata for all types of essence (video, audio, and data in their various forms). Applications
of individual dictionary entries will vary but, when used, metadata shall conform to the
definitions and formats in this metadata dictionary structure standard and the associated
metadata dictionary recommended practice (IEC 62261-3). IEC 62261-3 defines a registered
set of metadata element descriptions for association with essence or other metadata and this
standard and the contents practice shall be used together as a pair – neither shall be used in
isolation. The IEC may, from time to time, appoint other bodies to act as its Registration
Authority and Agent for the compilation and safe keeping of IEC 62261-3 as described in
IEC 62261-2.
2 Normative references
The following referenced documents are indispensable for the application of this document.
For dated references, only the edition cited applies. For undated references, the latest edition
of the referenced document (including any amendments) applies.
IEC 62261-2, Television metadata – Part 2: Data encoding protocol using key-length-value
IEC 62261-3, Television metadata – Part 3: Universal labels for unique identification of digital
data
3 Metadata dictionary structure
3.1 General
The metadata dictionary structure provides flexibility in capturing metadata and exchanging it
among applications through a standardized hierarchy of universal labels for the metadata
elements, grouped to aid their management within a small but comprehensive number of
classes. Metadata classes are collections of metadata elements with common characteristics
or attributes. Additional classes are provided for user-defined metadata.
IEC 62261-3 references an individual item or element of metadata using a two-part 16-byte
universal label that is numerical (and hence language-independent) and unique. The first
eight bytes label the second eight bytes as a “tag” in a specific version of a designated
metadata dictionary (“tags” are defined in IEC 62261-2 (key-length-value encoding)). This tag
is used to index the meaning or definition of the metadata element.
The actual metadata information described by the metadata element is the metadata value.
The dictionary also contains information on the required format of metadata values and the
allowable range of values (if applicable) either as a list or as a bounded range.
Individual data element values can frequently be represented in more than one way – for
instance, it is possible to represent a textual value as ASCII or unicode, where the value is
identical but the particular representation different. It is important both that the representation
is known and that as new representations are registered they can be accommodated. In this
case, the last active word of the tag defines the representation in use – the default being 00 .
h

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– 6 – 62261-1  IEC:2005(E)
The metadata dictionary is organized into nodes and leaves. The dictionary classes just
described form class nodes and below these are further nodes at each subclass. To aid the
management of the dictionary, these nodes and subnodes are assigned tags to which no
value is assigned, so as to give clear breaks in the structure. Entries within a subclass form
leaves, which are the data elements themselves.
Lower levels of the dictionary structure can be derived from the tag structure in IEC 62261-3.
3.2 Compatibility with other metadata structures
The metadata dictionary structure is a framework that supports global interoperability by
defining metadata tags in a way that enables the interchange of IEC metadata with metada
...