BS-EN-62261-2-2006.pdf
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1、BRITISH STANDARD BS EN 62261-2:2006 Television METADATA Part 2: Data encoding protocol using key-length-value The European Standard EN 62261-2:2006 has the status of a British Standard ICS 33.160.01; 35.040 ? Licensed Copy: London South Bank University, London South Bank University, Fri Jun 01 01:42
2、:21 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS EN 62261-2:2006 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 May 2007 BSI 2007 ISBN 978 0 580 50819 6 National foreword This British Standard was published by BSI. It is the UK implement
3、ation of EN 62261-2:2006. It is identical with IEC 62261-2:2005. The UK participation in its preparation was entrusted to Technical Committee EPL/100, Audio, video and multimedia systems and equipment. A list of organizations represented on this committee can be obtained on request to its secretary.
4、 This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments issued since publication Amd. No. DateComments Licensed Copy: Lond
5、on South Bank University, London South Bank University, Fri Jun 01 01:42:21 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD EN 62261-2 NORME EUROPENNE EUROPISCHE NORM December 2006 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotech
6、nique Europisches Komitee fr 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 62261-2:2006 E ICS 33.160; 35.040 English version Television ME
7、TADATA Part 2: Data encoding protocol using key-length-value (IEC 62261-2:2005) Mtadonnes des applications tlvision Partie 2: Protocole de codage des donnes par mthode de longueur de cls (CEI 62261-2:2005) Fernseh-Metadaten Teil 2: Protokoll zur Datencodierung mit Schlssellngenwert (IEC 62261-2:2005
8、) 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 bibliographica
9、l 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 m
10、ember 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, Irelan
11、d, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: London South Bank University, London South Bank University, Fri Jun 01 01:42:21 GMT+00:00 2007, Uncontrolled Copy,
12、 (c) BSI Foreword The text of the International Standard IEC 62261-2:2005, 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
13、62261-2 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 national standard or by endorsement (dop) 2007-12-01 latest date by which the national standards conflicting with the EN
14、have to be withdrawn (dow) 2009-12-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 62261-2:2005 was approved by CENELEC as a European Standard without any modification. _ EN 62261-2:2006 2 Licensed Copy: London South Bank University, London Sout
15、h Bank University, Fri Jun 01 01:42:21 GMT+00:00 2007, Uncontrolled Copy, (c) BSI CONTENTS 1 Scope.5 2 Normative references .5 3 KLV protocol.5 3.1 General.5 3.2 ANSI/SMPTE 298M universal label key .6 3.3 Encoding of the KLV length field .9 3.4 Encoding of data values 10 3.5 Empty metadata items.11
16、4 KLV coding of individual data items 11 4.1 General.11 4.2 Identification of value data representations .11 5 KLV group coding.12 5.1 General.12 5.2 Universal sets .13 5.3 Global sets13 5.4 Local sets15 5.5 Variable-length packs18 5.6 Fixed-length packs 21 6 Labels 23 Annex A (normative) Glossary o
17、f terms24 Annex B (informative) Example usage of Universal Label Key26 Annex C (informative) Example of the KLV encoding of a single metadata item .27 Annex D (informative) Example of a universal set 28 Annex E (informative) Example of a global set.29 Annex F (informative) Example of a local set .30
18、 Annex G (informative) Example of a variable-length pack 31 Annex H (informative) Example of a fixed-length pack .32 Annex I (informative) Example of a label33 Bibliography34 Figure 1 KLV encoding.6 Figure 2 KLV coded universal set data structure 14 Figure 3 KLV coded global set data structure.15 Fi
19、gure 4 KLV coded local set structure.17 Figure 5 Informative illustration of local set label to global key linking19 Figure 6 KLV coded variable-length pack structure 20 Figure 7 KLV coded fixed-length pack structure .22 Figure 8 UL key for labels 23 Figure B.1 Example of universal label fields for
20、metadata encoding in the SMPTE namespace .26 EN 62261-2:2006 3 Annex ZA (normative) Normative references to international publications with their corresponding European publications 35 Licensed Copy: London South Bank University, London South Bank University, Fri Jun 01 01:42:21 GMT+00:00 2007, Unco
21、ntrolled Copy, (c) BSI Table 1 KLV fields for encoding of data6 Table 2 Field descriptions for the universal label key for the KLV encoding of data7 Table 3 UL designators for octets 5 through 78 Table 4 Field descriptions for the UL key for the KLV encoding of universal sets .14 Table 5 Field descr
22、iptions for the UL key for global set encoding.16 Table 6 Coding of registry designator (octet 6) for global set syntax 17 Table 7 Field descriptions for the UL key for local set encoding .17 Table 8 Coding of registry designator (octet 6) for local set syntax 18 Table 9 Field descriptions for the U
23、L key for variable-length pack encoding.20 Table 10 Coding of registry designator (octet 6) for variable-length pack syntax 20 Table 11 Field descriptions for the UL key for fixed-length pack encoding22 Table 12 Field descriptors for the UL key for labels23 Table B.1 Expanded example of SMPTE univer
24、sal label fields for metadata encoding26 Table C.1 Informative example of KLV individual value encoding of metadata27 Table D.1 Informative example of KLV universal set encoding of metadata (octets separated by spaces for readability) .28 Table E.1 Informative example of KLV global set encoding of m
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