1、BSI Standards PublicationDigital living network alliance(DLNA) home networked device interoperability guidelinesPart 3: Link protectionBS EN 62481-3:2014National forewordThis British Standard is the UK implementation of EN 62481-3:2014. It is identical to IEC 62481-3:2013. It supersedes BS EN 62481-
2、3:2011 which is withdrawn.The UK participation in its preparation was entrusted to Technical Com-mittee EPL/100, Audio, video and multimedia systems and equipment.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to inc
3、lude all the necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2014.Published by BSI Standards Limited 2014ISBN 978 0 580 79863 4ICS 33.160.60; 35.100.05; 35.110Compliance with a British Standard cannot confer immunity fromlegal o
4、bligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 March 2014.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 62481-3:2014EUROPEAN STANDARD EN 62481-3 NORME EUROPENNE EUROPISCHE NORM March 2014
5、CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B - 1000 Brussels 2014 CENELEC - All rights of exploitation in any form and by any means r
6、eserved worldwide for CENELEC members. Ref. No. EN 62481-3:2014 E ICS 33.160; 35.100.05; 35.110 Supersedes EN 62481-3:2011 English version Digital living network alliance (DLNA) home networked device interoperability guidelines - Part 3: Link protection (IEC 62481-3:2013) Lignes directrices pour lin
7、teroprabilit des dispositifs domestiques DLNA (Digital Living Network Alliance) - Partie 3: Protection des liaisons (CEI 62481-3:2013) Digital living network alliance (DLNA) Interoperabilitts-Richtlinien fr Gerte im Heimnetzwerk - Teil 3: Verbindungsschutz (IEC 62481-3:2013) This European Standard w
8、as approved by CENELEC on 2013-11-27. 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 su
9、ch national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member int
10、o its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of M
11、acedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 62481-3:2014EN 62481-3:2014 - 2 - Foreword The text of d
12、ocument 100/1994/CDV, future edition 2 of IEC 62481-3, prepared by technical area 9, “Audio, video and multimedia applications for end-user network“, of IEC/TC 100, “Audio, video and multimedia systems and equipment“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 62481-
13、3:2014. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2014-09-21 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 20
14、16-11-27 This document supersedes EN 62481-3:2011. EN 62481-3:2014 includes the following significant technical changes with respect to EN 62481-3:2011: a) includes variable play (trick mode) support; b) includes updates to resolve interoperability issues. Attention is drawn to the possibility that
15、some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 62481-3:2013 was approved by CENELEC as a European Standard without
16、 any modification. BS EN 62481-3:2014- 3 - EN 62481-3:2014 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its ap
17、plication. 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.
18、 Publication Year Title EN/HD Year IEC 62481-1 2013 Digital living network alliance (DLNA) home networked device interoperability guidelines - Part 1: Architecture and protocols EN 62481-1 2012 IEC 62481-2 2013 Digital living network alliance (DLNA) home networked device interoperability guidelines
19、- Part 2: DLNA media formats EN 62481-2 2014 ISO/IEC 13818-1 + corr. December 2000 2002 Information technology - Generic coding of moving pictures and associated audio information - Part 1: Systems - - ISO/IEC 14496-2 2004 Information Technology Coding of audio-visual objects - Part 2: Visual - - IS
20、O/IEC 29341-3-10 - Information technology - UPnP Device Architecture - Part 3-10: Audio Video Device Control Protocol - Audio Video Transport Service - - ISO/IEC 29341-3-11 - Information technology - UPnP Device Architecture - Part 3-11: Audio Video Device Control Protocol - Connection Manager Servi
21、ce - - IETF RFC 1191 1990 Path MTU Discovery - - IETF RFC 2616 - Hypertext Transfer Protocol HTTP/1.1. - - IETF RFC 3551 - RTP Profile for Audio and Video Conferences with Minimal Control - - IETF RFC 3550 - A Transport Protocol for Real-Time Applications - - IETF RFC 1738 1994 Uniform Resource Loca
22、tors (URL) - - DTCP Volume 1 2005 Digital transmission content protection specification - - DTCP Volume 1 Supplement E 2005 Mapping DCTP to IP - - BS EN 62481-3:2014EN 62481-3:2014 - 4 - DTCP Audio Compliance Rules EXHIBIT B-2 2002 Compliance rules for licensed products that receive or transmit comm
23、ercial audio works - - IEEE 802.1Q - IEEE Standard for Local and Metropolitan Area Networks - Virtual Bridged Local Area Networks - - IEEE 802.11 - IEEE Standard for Information Technology - Telecommunications and Information Exchange Between Systems - Local and Metropolitan Area Networks - Specific
24、 Requirements - Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications - - RTP - RTP Payload Format for Windows Media Audio and Video, Microsoft Corporation - - DTCP 2005 DTCP Adopter Agreement, Digital Transmission Protection License Agreement - - WMDRM-ND Windows
25、 Media DRM for Network Devices, Windows Media Technologies - - BS EN 62481-3:2014 2 62481-3 IEC:2013(E) CONTENTS INTRODUCTION . 7 1 Scope . 8 2 Normative references . 8 3 Terms, definitions and abbreviated terms . 9 3.1 Terms and definitions 9 3.2 Symbols and abbreviated terms . 11 3.3 Conventions 1
26、4 4 DLNA home network architecture . 14 5 DLNA device model 14 6 Guideline terminology and conventions 15 7 Common link protection guidelines . 15 7.1 General . 15 7.2 Conditions for measuring time in message exchanges . 15 7.3 Networking and connectivity 15 General . 15 7.3.1New general capability
27、guidelines: Bluetooth NC CP: power saving 7.3.2modes . 15 7.4 Device discovery and control . 16 7.5 Media management . 16 General . 16 7.5.1Updates to existing general AV Media Management guidelines 18 7.5.2New general AV Media Management guidelines 19 7.5.3MediaRenderer device guidelines 22 7.5.47.
28、6 Media Transport 22 General . 22 7.6.1Updates to existing general Media Transport guidelines 23 7.6.2New general Media Transport guidelines . 23 7.6.3HTTP transport 24 7.6.4RTP transport 36 7.6.57.7 Content conversion device virtualization 37 7.8 Media Interoperability Unit (MIU) . 37 7.9 Link Prot
29、ection technology guidelines 37 Link Protection System: DTCP-IP 37 7.9.1Link Protection System: Windows Media DRM for network Devices . 39 7.9.28 DTCP-IP Link Protection System guidelines . 39 8.1 General . 39 8.2 CP DTCP-IP general guidelines . 40 8.3 Networking and connectivity 40 General . 40 8.3
30、.1New DLNAQOS guidelines: QoS requirement for DTCP-IP traffic 40 8.3.2New common device guidelines: NC CP: wireless security. 40 8.3.38.4 Device discovery and control . 41 8.5 Media Management . 41 General . 41 8.5.1BS EN 62481-3:201462481-3 IEC:2013(E) 3 MM CP: DTCP-IP URI 41 8.5.2MM CP: mandatory
31、media operations 41 8.5.38.6 Media Transport 42 HTTP transport 42 8.6.1RTP transport 45 8.6.28.7 Content conversion device virtualization 47 8.8 Media Interoperability Unit (MIU) . 47 8.9 Volume 2: DTCP-IP profiling guidelines . 47 CP DTCP-IP: profile 47 8.9.1CP DTCP-IP: profile MIME type definition
32、 48 8.9.2CP DTCP-IP: profile protected and unprotected content portions . 49 8.9.3CP DTCP-IP: profile HTTP encapsulation 50 8.9.4DTCP-IP profile encapsulation . 50 8.9.59 WMDRM-ND Link Protection System guidelines . 53 9.1 Overview . 53 9.2 General guidelines 53 CP WMDRM-ND: guidelines 53 9.2.1CP WM
33、DRM-ND: support for HTTP . 53 9.2.2CP WMDRM-ND: support for RTP 54 9.2.3CP WMDRM-ND: Registration and Revalidation procedures 54 9.2.4CP WMDRM-ND: discovery of Content Receivers 55 9.2.59.3 Networking and connectivity 56 General . 56 9.3.1CP WMDRM-ND: QoS guidelines . 56 9.3.29.4 Device discovery an
34、d control . 56 General . 56 9.4.1CP WMDRM-ND: additional rules for DMRs . 56 9.4.29.5 Media management . 57 9.6 Media Transport 57 HTTP transport 57 9.6.1RTP transport 62 9.6.29.7 Content conversion device virtualization 65 9.8 Media Interoperability Unit (MIU) . 65 9.9 Volume 2: WMDRM-ND profiling
35、guidelines . 65 General . 65 9.9.1CP WMDRM-ND: identification of content transferred using 9.9.2WMDRM-ND 65 CP WMDRM-ND: Media Format guidelines 66 9.9.3CP WMDRM-ND: MIME type 66 9.9.4CP WMDRM-ND: Decoder Friendly Alignment Position 67 9.9.5CP WMDRM-ND: Media Format Alignment Element . 67 9.9.6Annex
36、 A (informative) An introduction to DLNA seek operations . 68 Bibliography 76 Figure A.1 UCDAM definitions for seek operations . 69 Figure A.2 Full Random Access Data Availability model . 70 Figure A.3 Limited Random Access Data Availability model Mode 0 . 71 Figure A.4 Limited Random Access Data Av
37、ailability model Mode 1 . 72 BS EN 62481-3:2014 4 62481-3 IEC:2013(E) Figure A.5 Content flow unprotected content 74 Figure A.6 Content flow link protected content . 74 Table 1 Summary of Domain Elements for Full Random Access Data Availability model . 17 Table 2 Summary of Domain Elements for Limit
38、ed Random Access Data Availability model . 17 Table 3 AV Media Management guideline changes 18 Table 4 Recommended metadata properties 19 Table 5 Property type and multi value 20 Table 6 Updates to existing general Media Transport guidelines 23 Table 7 Updates to existing general HTTP Media Transpor
39、t guidelines 24 Table 8 Updates to existing general HTTP Media Transport for Streaming Transfer guidelines . 32 Table A.1 DLNA constructs of Full Random Access Data Availability model . 70 Table A.2 DLNA Constructs of Limited Random Access Data Availability model . 73 BS EN 62481-3:201462481-3 IEC:2
40、013(E) 7 INTRODUCTION Consumers are acquiring, viewing, and managing an increasing amount of digital media (photos, music, and video) on devices in the Consumer Electronics (CE), mobile, and Personal Computer (PC) domains. As such, they want to conveniently enjoy the content, regardless of the sourc
41、e, across different devices and locations in the home. The digital home vision integrates the Internet, mobile, and broadcast networks through a seamless, interoperable network, which will provide a unique opportunity for manufacturers and consumers alike. In order to achieve this interoperability,
42、a common set of industry design guidelines is needed that allows vendors to participate in a growing marketplace, leading to more innovation, simplicity, and value for consumers. This standard serves that purpose and provides vendors with the information needed to build interoperable networked platf
43、orms and devices for the digital home. This standard is organized to align with the overall structure of IEC 62481-1 and IEC 62481-2. BS EN 62481-3:2014 8 62481-3 IEC:2013(E) DIGITAL LIVING NETWORK ALLIANCE (DLNA) HOME NETWORKED DEVICE INTEROPERABILITY GUIDELINES Part 3: Link protection 1 Scope This
44、 part of IEC 62481 specifies the DLNA link protection guidelines, which are an extension of the DLNA guidelines. DLNA link protection is defined as the protection of a content stream between two devices on a DLNA network from illegitimate observation or interception using the protocols defined withi
45、n this part of IEC 62481. Content protection is an important mechanism for ensuring that commercial content is protected from piracy and illegitimate redistribution. Link Protection is a technique that enables distribution of protected commercial content on a home network, thus resulting in greater
46、consumer flexibility while still preserving the rights of copyright holders and content providers. The guidelines in this part of IEC 62481 reference existing technologies for Link Protection and provide mechanisms for interoperability between different implementations as well as integration with th
47、e DLNA architecture. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document
48、 (including any amendments) applies. IEC 62481-1:2013, Digital Living Network Alliance (DLNA) home networked device interoperability guidelines Part 1: Architecture and protocols IEC 62481-2:2013, Digital Living Network Alliance (DLNA) home networked device interoperability guidelines Part 2: DLNA m
49、edia formats ISO/IEC 13818-1:2000, Information technology Generic coding of moving pictures and associated audio information: Systems ISO/IEC 14496-2:2004, Information technology Coding of Audio-Visual Objects Part 2: Visual Amendment 1:2004, Error resilient simple scalable profile ISO/IEC 29341-3-10, Information technology UPnP Device Architecture Part 3-10: Audio Video Device Control Protocol Audio Video Transport Service ISO/IEC 29341-3-11, Information technology UPnP Device Arch
