ISO_IEC_29341-20-4_2017-Character_PDF_documenten.pdf

Information technology UPnP Device Architecture Part 20-4:Audio video device control protocol Level 4 Datastructure templateTechnologies de linformation Architecture de dispositif UPnP Partie 20-4:Protocole de contrle de dispositif audio-vido Niveau 4 Modle de structure de donnesINTERNATIONAL STANDARDISO/IEC29341-20-4Reference numberISO/IEC 29341-20-4:2017(E)First edition2017-09 ISO/IEC 2017 ii ISO/IEC 2017 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO/IEC 2017,Published in SwitzerlandAll rights reserved.Unless otherwise specified,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 ISOs member body in the country of the requester.ISO copyright officeCh.de Blandonnet 8 CP 401CH-1214 Vernier,Geneva,SwitzerlandTel.+41 22 749 01 11Fax+41 22 749 09 47copyrightiso.orgwww.iso.orgISO/IEC 29341-20-4:2017(E)ISO/IEC 29341-20-4:2017(E)ISO/IEC 2017 All rights reserved iii CONTENTS 1Scope.12Normative references.23Terms,definitions,symbols and abbreviations.53.1Provisioning terms.53.2Symbols.54Notations and Conventions.54.1Notation.54.1.1Data Types.64.1.2Strings Embedded in Other Strings.64.1.3Extended Backus-Naur Form.64.2Derived Data Types.74.2.1Summary.74.2.2CSV Lists.74.3Management of XML Namespaces in Standardized DCPs.84.3.1Namespace Prefix Requirements.124.3.2Namespace Names,Namespace Versioning and Schema Versioning.134.3.3Namespace Usage Examples.154.4Vendor-defined Extensions.154.4.1Vendor-defined Action Names.154.4.2Vendor-defined State Variable Names.154.4.3Vendor-defined XML Elements and attributes.164.4.4Vendor-defined Property Names.165AV Datastructure Template.166AV Datastructure Schema.22Annex A(informative)Bibliography.23 List of Tables Table 1 EBNF Operators.7Table 2 CSV Examples.8Table 3 Namespace Definitions.9Table 4 Schema-related Information.11Table 5 Default Namespaces for the AV Specifications.13 List of Figures Figure 1 Typical Usage of AVDT.2 ISO/IEC 29341-20-4:2017(E)iv ISO/IEC 2017 All rights reserved ForewordISO(the International Organization for Standardization)and IEC(the InternationalElectrotechnicalCommission)formthespecializedsystemforworldwidestandardization.National bodies that are members of ISO or IEC participate in the development ofInternational Standards through technical committees established by the respectiveorganization to deal with particular fields of technical activity.ISO and IEC technicalcommittees collaborate in fields of mutual interest.Other international organizations,governmental and nongovernmental,in liaison with ISO and IEC,also take part in thework.Inthefieldofinformationtechnology,ISOandIEChaveestablishedajointtechnicalcommittee,ISO/IECJTC1.The procedures used to develop this document and those intended for its furthermaintenancearedescribedintheISO/IECDirectives,Part1.Inparticularthedifferentapproval criteria needed for the different types of document should be noted.ThisdocumentwasdraftedinaccordancewiththeeditorialrulesoftheISO/IECDirectives,Part2(seehttp:/www.iso.org/directives).Attentionisdrawntothepossibilitythatsomeoftheelementsofthisdocumentmaybethesubjectofpatentrights.ISOandIECshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.DetailsofanypatentrightsidentifiedduringthedevelopmentofthedocumentwillbeintheIntroductionand/orontheISOlistofpatentdeclarationsreceived(seewww.iso.org/patents).Anytradenameusedinthisdocumentisinformationgivenfortheconvenienceofusersanddoesnotconstituteanendorsement.ForanexplanationonthevoluntarynatureofStandard,themeaningoftheISOspecifictermsandexpressionsrelatedtoconformityassessment,aswellasinformationaboutISOsadherencetotheWTOprinciplesintheTechnicalBarrierstoTrade(TBT)seethefollowingURL:ForewordSupplementaryinformationISO/IEC29341204 was prepared by UPnP Forum and adopted,under the PASprocedure,by joint technical committee ISO/IEC JTC 1,Information technology,inparallelwithitsapprovalbynationalbodiesofISOandIEC.ThelistofallcurrentlyavailablepartsofISO/IEC29341series,underthegeneraltitleInformation technology UPnP Device Architecture,canbefoundontheISOwebsite.ISO/IEC 29341-20-4:2017(E)ISO/IEC 2017 All rights reserved v Introduction ISO and IEC draw attention to the fact that it is claimed that compliance with this document may involve the use of patents as indicated below.ISO and IEC take no position concerning the evidence,validity and scope of these patent rights.The holders of-these patent rights have assured ISO and IEC that they are willing to negotiate licenses under reasonable and non-discriminatory terms and conditions with applicants throughout the world.In this respect,the statements of the holders of these patent rights are registered with ISO and IEC.Intel Corporation has informed IEC and ISO that it has patent applications or granted patents.Information may be obt