ISO_IEC_29341-20-2_2017-Character_PDF_documenten.pdf

Information technology UPnP Device Architecture Part 20-2:Audio video device control protocol Level 4 Media renderer deviceTechnologies de linformation Architecture de dispositif UPnP Partie 20-2:Protocole de contrle de dispositif audio-vido Niveau 4 Dispositif de moteur de rendu de mdiaINTERNATIONAL STANDARDISO/IEC29341-20-2Reference numberISO/IEC 29341-20-2:2017(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 29341-20-2:2017(E)ISO/IEC 29341-20-2:2017(E)ISO/IEC 2017 All rights reserved iii CONTENTS 1Scope.12Normative references.13Terms,definitions,symbols and abbreviations.43.1Provisioning terms.43.2Symbols.54Notations and Conventions.54.1Notation.54.1.1Data Types.54.1.2Strings Embedded in Other Strings.64.1.3Extended Backus-Naur Form.64.2Derived Data Types.64.2.1Summary.64.2.2CSV 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.165Device Definitions.165.1Device Type.165.2Device Model.165.2.1Description of Device Requirements.175.2.2Relationships Between Services.176XML Device Description.177Test.19Annex A(informative)Theory of Operation.20A.1Device Discovery.20A.2Preparing to Transfer the Content.20A.3Controlling the Transfer of the Content.20A.4Controlling How the Content is Rendered.21Annex B(informative)Bibliography.22 ISO/IEC 29341-20-2:2017(E)iv ISO/IEC 2017 All rights reserved List of Tables Table 1 EBNF Operators.6Table 2 CSV Examples.8Table 3 Namespace Definitions.9Table 4 Schema-related Information.11Table 5 Default Namespaces for the AV Specifications.13Table 6 Device Requirements.16 List of Figures Figure 1 MediaRenderer Functional Diagram.1 ISO/IEC 29341-20-2:2017(E)ISO/IEC 2017 All rights reserved v Foreword ISO(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/IEC29341202 was prepared by UPnP Forum and adopted,under the PASprocedure,by joint technical committee ISO/IECJTC1,Information technology,inparallelwithitsapprovalbynationalbodiesofISOandIEC.ThelistofallcurrentlyavailablepartsofISO/IEC29341series,underthegeneraltitleInformation technology UPnP Device Architecture,canbefoundontheISOwebsite.ISO/IEC 29341-20-2:2017(E)vi ISO/IEC 2017 All rights reserved 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.T