1、Information technology UPnP Device Architecture Part 20-1:Audio video device control protocol Level 4 Audio video architectureTechnologies de linformation Architecture de dispositif UPnP Partie 20-1:Protocole de contrle de dispositif audio-vido Niveau 4 Architecture audio-vidoINTERNATIONAL STANDARDI
2、SO/IEC29341-20-1Reference numberISO/IEC 29341-20-1:2017(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 ot
3、herwise 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.d
4、e Blandonnet 8 CP 401CH-1214 Vernier,Geneva,SwitzerlandTel.+41 22 749 01 11Fax+41 22 749 09 47copyrightiso.orgwww.iso.orgISO/IEC 29341-20-1:2017(E)ISO/IEC 29341-20-1:2017(E)ISO/IEC 2017 All rights reserved iii CONTENTS 1Scope.11.1Introductioin.11.2Goals.11.3Non-Goals.12Normative references.13Terms,d
5、efinitions,symbols and abbreviations.24Architectural Overview.35Playback Architecture.55.1MediaServer.65.1.1ContentDirectory Service.75.1.2ConnectionManager Service.75.1.1AVTransport Service.75.2MediaRenderer.75.2.1RenderingControl Service.85.2.2ConnectionManager Service.85.2.3AVTransport Service.85
6、.3Control point.85.3.12-Box model:Control point with Decoder.115.3.22-Box model:Control point with Content.125.4Tracking streams in the network.126Example Playback Scenarios.126.13-Box model:Isochronous-Push(IEC61883/IEEE1394).136.23-Box model:Asynchronous-Pull(e.g.HTTP GET).146.32-Box model:Control
7、 point with Decoder using Isochronous-Push(e.g.IEEE-1394).156.42-Box model:Control point with Decoder using Asynchronous-Pull(e.g.HTTP GET).176.4.1Minimal Implementation.176.52-Box model:Control point with Content using Isochronous-Push(e.g.IEEE-1394).196.62-Box Model:Control point with Content usin
8、g Asynchronous-Pull(e.g.HTTP GET).206.7No ConnectionManager:PrepareForConnection()Action.207Advanced Playback Scenarios.217.1Synchronized playback.227.2Multi-streaming.248Recording Architecture.268.1Legacy recording mechanism.268.2Scheduled Recording.26 ISO/IEC 29341-20-1:2017(E)iv ISO/IEC 2017 All
9、rights reserved List of Figures Figure 1 Typical UPnP Device Interaction Model.3Figure 2 UPnP AV Device Interaction Model.4Figure 3 General Device Architecture aka the 3-Box model.5Figure 4 General Interaction Diagram of the 3-Box model.10Figure 5 Control point with Decoder.11Figure 6 Control point
10、with Content.12Figure 7 3-Box Model:Isochronous-Push transfer protocols.14Figure 8 3-Box model:Asynchronus-Pull transfer protocol.15Figure 9 2-Box model:Control point with Decoder using Isochronous-Push.16Figure 10 2-Box model:Control point with Decoder using Asynchronous-Pull.17Figure 11 2-Box mode
11、l:Minimal Implementation.18Figure 12 2-Box model:Control point with Content using Isochronous-Push.19Figure 13 2-Box model:Control point with Content using Asynchronous-Pull.20Figure 14 3-Box model:no ConnectionManager:PrepareForConnection()action.21Figure 15 Sequence diagram for setting up synchron
12、ized playback.23Figure 16 Multi-streaming playback sequence.25Figure 17 Relationship between a Schedule and the related Tasks.27Figure 18 Out of bounds content creation by the ScheduledRecording service.27 ISO/IEC 29341-20-1:2017(E)ISO/IEC 2017 All rights reserved v ForewordISO(theInternationalOrgan
13、izationforStandardization)andIEC(theInternationalElectrotechnicalCommission)formthespecializedsystemforworldwidestandardization.NationalbodiesthataremembersofISOorIECparticipateinthedevelopmentofInternationalStandardsthroughtechnicalcommitteesestablishedbytherespectiveorganizationtodealwithparticula
14、rfieldsoftechnicalactivity.ISOandIECtechnicalcommitteescollaborateinfieldsofmutualinterest.Otherinternationalorganizations,governmentalandnongovernmental,inliaisonwithISOandIEC,alsotakepartinthework.Inthefieldofinformationtechnology,ISOandIEChaveestablishedajointtechnicalcommittee,ISO/IECJTC1.Thepro
15、ceduresusedtodevelopthisdocumentandthoseintendedforitsfurthermaintenanceare described in the ISO/IEC Directives,Part1.In particular the different approval criterianeeded for the different types of document should be noted.This document was drafted inaccordancewiththeeditorialrulesoftheISO/IECDirecti
16、ves,Part2(seehttp:/www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be thesubjectofpatentrights.ISOandIECshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.Detailsofanypatentrightsidentifiedduringthedevelopmentofthedocumentwill be in the Introduction and/or on the ISO list of patent declarations received(seewww.iso.org/patents).Anytradenameusedinthisdocumentisinformationgivenfortheconvenienceofusersanddoesnotconstituteanend