SIST EN 62481-3:2014

SLOVENSKI STANDARD
SIST EN 62481-3:2014
01-junij-2014
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SIST EN 62481-3:2011
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Digital living network alliance (DLNA) home networked device interoperability guidelines -
- Part 3: Link protection
Digital living network alliance (DLNA) Interoperabilitäts-Richtlinien für Geräte im
Heimnetzwerk - Teil 3: Verbindungsschutz
Lignes directrices pour l'interopérabilité des dispositifs domestiques DLNA (Digital Living
Network Alliance) - Partie 3: Protection des liaisons
Ta slovenski standard je istoveten z: EN 62481-3:2014
ICS:
33.160.01 Avdio, video in avdiovizualni Audio, video and audiovisual
sistemi na splošno systems in general
35.100.05 9HþVORMQHXSRUDEQLãNH Multilayer applications
UHãLWYH
35.110 Omreževanje Networking
SIST EN 62481-3:2014 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 62481-3:2014

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SIST EN 62481-3:2014

EUROPEAN STANDARD
EN 62481-3

NORME EUROPÉENNE
March 2014
EUROPÄISCHE NORM


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 l'interopérabilité Digital living network alliance (DLNA)
des dispositifs domestiques DLNA (Digital Interoperabilitäts-Richtlinien für Geräte im
Living Network Alliance) - Heimnetzwerk -
Partie 3: Protection des liaisons Teil 3: Verbindungsschutz
(CEI 62481-3:2013) (IEC 62481-3:2013)



This European Standard was 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 such 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 into 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 Macedonia, 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.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für 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 reserved worldwide for CENELEC members.
Ref. No. EN 62481-3:2014 E

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SIST EN 62481-3:2014
EN 62481-3:2014 - 2 -

Foreword
The text of document 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 62481-3:2014.
The following dates are fixed:
• latest date by which the document has (dop) 2014-09-21
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2016-11-27
standards conflicting with the
document have to be withdrawn

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 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 any modification.

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SIST 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 application. 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.

Publication Year Title EN/HD Year

IEC 62481-1 2013 Digital living network alliance (DLNA) home EN 62481-1 2012
networked device interoperability guidelines -
Part 1: Architecture and protocols


IEC 62481-2 2013 Digital living network alliance (DLNA) home EN 62481-2 2014
networked device interoperability guidelines -
Part 2: DLNA media formats

ISO/IEC 13818-1 2000 Information technology - Generic coding of - -
+ corr. December 2002 moving pictures and associated audio
information - Part 1: Systems


ISO/IEC 14496-2 2004 Information Technology – Coding of audio- - -
visual objects - Part 2: Visual


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 - -
Architecture - Part 3-11: Audio Video Device
Control Protocol - Connection Manager
Service


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 Locators (URL) - -

DTCP Volume 1 2005 Digital transmission content protection - -
specification


DTCP Volume 1 2005 Mapping DCTP to IP - -
Supplement E

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SIST EN 62481-3:2014
EN 62481-3:2014 - 4 -
DTCP Audio 2002 Compliance rules for licensed products that - -
Compliance Rules receive or transmit commercial audio works
EXHIBIT B-2

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
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 Media DRM for Network Devices, - -
Windows Media Technologies

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SIST EN 62481-3:2014




IEC 62481-3

®


Edition 2.0 2013-10




INTERNATIONAL



STANDARD








colour

inside










Digital living network alliance (DLNA) home networked device interoperability

guidelines –

Part 3: Link protection


























INTERNATIONAL

ELECTROTECHNICAL

COMMISSION

PRICE CODE
XC


ICS 33.160; 35.100.05; 35.110 ISBN 978-2-8322-1131-1



  Warning! Make sure that you obtained this publication from an authorized distributor.


® Registered trademark of the International Electrotechnical Commission

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SIST EN 62481-3:2014
– 2 – 62481-3 © IEC:2013(E)

CONTENTS
FOREWORD . 5
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 . 14
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
7.3.1 General . 15
7.3.2 New general capability guidelines: Bluetooth NC CP: power saving
modes . 15
7.4 Device discovery and control . 16
7.5 Media management . 16
7.5.1 General . 16
7.5.2 Updates to existing general AV Media Management guidelines . 18
7.5.3 New general AV Media Management guidelines . 19
7.5.4 MediaRenderer device guidelines . 22
7.6 Media Transport . 22
7.6.1 General . 22
7.6.2 Updates to existing general Media Transport guidelines . 23
7.6.3 New general Media Transport guidelines . 23
7.6.4 HTTP transport . 24
7.6.5 RTP transport . 36
7.7 Content conversion device virtualization . 37
7.8 Media Interoperability Unit (MIU) . 37
7.9 Link Protection technology guidelines . 37
7.9.1 Link Protection System: DTCP-IP . 37
7.9.2 Link Protection System: Windows Media DRM for network Devices . 39
8 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
8.3.1 General . 40
8.3.2 New DLNAQOS guidelines: QoS requirement for DTCP-IP traffic . 40
8.3.3 New common device guidelines: NC CP: wireless security. 40
8.4 Device discovery and control . 41
8.5 Media Management . 41
8.5.1 General . 41

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SIST EN 62481-3:2014
62481-3 © IEC:2013(E) – 3 –
8.5.2 MM CP: DTCP-IP URI . 41
8.5.3 MM CP: mandatory media operations . 41
8.6 Media Transport . 42
8.6.1 HTTP transport . 42
8.6.2 RTP transport . 45
8.7 Content conversion device virtualization . 47
8.8 Media Interoperability Unit (MIU) . 47
8.9 Volume 2: DTCP-IP profiling guidelines . 47
8.9.1 CP DTCP-IP: profile . 47
8.9.2 CP DTCP-IP: profile MIME type definition . 48
8.9.3 CP DTCP-IP: profile protected and unprotected content portions . 49
8.9.4 CP DTCP-IP: profile HTTP encapsulation . 50
8.9.5 DTCP-IP profile encapsulation . 50
9 WMDRM-ND Link Protection System guidelines . 53
9.1 Overview . 53
9.2 General guidelines . 53
9.2.1 CP WMDRM-ND: guidelines . 53
9.2.2 CP WMDRM-ND: support for HTTP . 53
9.2.3 CP WMDRM-ND: support for RTP. 54
9.2.4 CP WMDRM-ND: Registration and Revalidation procedures . 54
9.2.5 CP WMDRM-ND: discovery of Content Receivers . 55
9.3 Networking and connectivity . 56
9.3.1 General . 56
9.3.2 CP WMDRM-ND: QoS guidelines . 56
9.4 Device discovery and control . 56
9.4.1 General . 56
9.4.2 CP WMDRM-ND: additional rules for DMRs . 56
9.5 Media management . 57
9.6 Media Transport . 57
9.6.1 HTTP transport . 57
9.6.2 RTP transport . 62
9.7 Content conversion device virtualization . 65
9.8 Media Interoperability Unit (MIU) . 65
9.9 Volume 2: WMDRM-ND profiling guidelines . 65
9.9.1 General . 65
9.9.2 CP WMDRM-ND: identification of content transferred using
WMDRM-ND . 65
9.9.3 CP WMDRM-ND: Media Format guidelines . 66
9.9.4 CP WMDRM-ND: MIME type . 66
9.9.5 CP WMDRM-ND: Decoder Friendly Alignment Position . 67
9.9.6 CP WMDRM-ND: Media Format Alignment Element . 67
Annex 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 Availability model Mode 1 . 72

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SIST EN 62481-3:2014
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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 Limited 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 Transport 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

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SIST EN 62481-3:2014
62481-3 © IEC:2013(E) – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
______________

DIGITAL LIVING NETWORK ALLIANCE (DLNA) HOME
NETWORKED DEVICE INTEROPERABILITY GUIDELINES –

Part 3: Link protection

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in
addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses
arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62481-3 has been prepared technical area 9: Audio, video and
multimedia applications for end-user network, by IEC technical committee 100: Audio, video and
multimedia systems and equipment.
This second edition cancels and replaces the first edition published in 2010. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) includes variable play (trick mode) support;
b) includes updates to resolve interoperability issues.

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SIST EN 62481-3:2014
– 6 – 62481-3 © IEC:2013(E)
The text of this standard is based on the following documents:
CDV Report on voting
100/1994/CDV 100/2082/RVC

Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of IEC 62481 series, published under the general title Digital living network
alliance (DLNA) home networked device interoperability guidelines, can be found on the IEC
website.
The committee has decided that the contents of this publication will remain unchanged until the
stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data related to
the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.

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SIST EN 62481-3:2014
62481-3 © IEC:2013(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 source,
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, 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 platforms and devices for the digital home.
This standard is organized to align with the overall structure of IEC 62481-1 and IEC 62481-2.

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SIST EN 62481-3:2014
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DIGITAL LIVING NETWORK ALLIANCE (DLNA) HOME
NETWORKED DEVICE INTEROPERABILITY GUIDELINES –

Part 3: Link protection



1 Scope
This 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 within 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 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 the 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 (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 media 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 Architecture – Part 3-11: Audio
Video Device Control Protocol – Connection Manager Service
IETF RFC 1191, Path MTU Discovery, J. Mogul, DECWRL, S. Deering, Stanford University,
November 1990
http://www.ietf.org/rfc/rfc1191.txt

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SIST EN 62481-3:2014
62481-3 © IEC:2013(E) – 9 –
IETF
...