Information technology — Home electronic system (HES) architecture — Part 5-21: Intelligent grouping and resource sharing for HES Class 2 and Class 3 — Application profile — AV profile

ISO/IEC 14543-5-21:2012(E) specifies the media data stream service profile, the device interaction flow, the request and response message format used in device interaction and the description format of services provided by the device. It is applicable to computers, household appliances and communication devices that implement media data streaming by wired or wireless means.

Technologies de l'information — Architecture des systèmes électroniques domestiques (HES) — Partie 5-21: Groupement intelligent et partage des ressources pour HES classe 2 et classe 3 — Profil d'application — Profil AV

General Information

Status
Published
Publication Date
23-Feb-2012
Current Stage
9093 - International Standard confirmed
Completion Date
13-Jul-2018
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ISO/IEC 14543-5-21
Edition 1.0 2012-02
INTERNATIONAL
STANDARD



Information technology – Home electronic system (HES) architecture –
Part 5-21: Intelligent grouping and resource sharing for HES Class 2 and Class 3 –
Application profile – AV profile

ISO/IEC 14543-5-21:2012(E)

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ISO/IEC 14543-5-21


Edition 1.0 2012-02




INTERNATIONAL



STANDARD



















Information technology – Home electronic system (HES) architecture –

Part 5-21: Intelligent grouping and resource sharing for HES Class 2 and Class 3 –

Application profile – AV profile



























INTERNATIONAL

ELECTROTECHNICAL

COMMISSION

PRICE CODE
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ICS 35.200 ISBN 978-2-88912-901-0



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

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– 2 – 14543-5-21  ISO/IEC:2012(E)
CONTENTS
FOREWORD . 5
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and abbreviations . 7
3.1 Terms and definitions . 7
3.2 Abbreviations . 9
3.3 Conventions . 9
4 Conformance . 9
5 Architecture . 9
5.1 Overview . 9
5.2 Four types of device interaction models in the IGRS AV application . 10
5.2.1 Interaction model between a single media server and a single media
client . 10
5.2.2 Interaction model between multiple media servers and a single media
client . 10
5.2.3 Interaction model between a single media server and multiple media
clients. 11
5.2.4 Interaction model between multiple media servers and multiple media
clients. 11
6 Components of the IGRS AV system . 12
6.1 IGRS AV applications . 12
6.2 Media server . 12
6.2.1 General . 12
6.2.2 Content index service . 13
6.2.3 BCM TCP service . 13
6.2.4 IGRS SOAP service . 13
6.3 Media client . 14
6.3.1 General . 14
6.3.2 BCM TCP service . 15
6.3.3 IGRS SOAP service . 15
6.3.4 Rendering management service. 16
6.4 Media device group . 16
6.4.1 Overview . 16
6.4.2 Content index service device group . 16
6.4.3 Audio video multicast device group . 17
6.5 Modular expansion of media server and media client . 17
7 Interaction flow of the IGRS AV system . 18
7.1 Overview of interaction flow . 18
7.2 Interaction flow of device grouping . 18
7.2.1 Overview of interaction flow of device grouping . 18
7.2.2 Inner-group information exchange mechanism of IGRS device group. 19
7.2.3 Group management mechanism of IGRS centrialised device group . 22
7.2.4 Content index service device group . 24
7.2.5 Audio video multicast device group . 28
7.3 Interaction flow of dynamic service invocation flow determination . 32

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14543-5-21  ISO/IEC:2012(E) – 3 –
7.4 Interaction flow of AV playback. 33
7.4.1 General . 33
7.4.2 Media server initiated transport mode . 36
7.4.3 Media client initiated transport mode . 37
7.5 Interaction flow of multicast AV playback . 39
7.6 Interaction flow of content management . 41
7.6.1 General . 41
7.6.2 Interaction flow of collaborative content analysis . 41
7.6.3 Interaction flow of a personalised content recommendation . 43
8 Session . 44
8.1 Session setup. 44
8.2 Session setup condition. 45
8.3 Session setup process . 45
8.4 Session termination . 45
8.5 Service invocation message format . 45
8.5.1 General . 45
8.5.2 Service invocation request message . 45
8.5.3 Service invocation response message . 47
8.5.4 Content directory object update notification message . 48
8.5.5 Service attribute update notification message . 51
Bibliography . 53

Figure 1 – Device grouping model of the IGRS AV profile . 10
Figure 2 – Interaction model of a single media server and single media client . 10
Figure 3 – Interaction model of multiple media servers and a single media client . 11
Figure 4 – Interaction model of a single media server and multiple media clients . 11
Figure 5 – Interaction model of multiple media servers and multiple media clients . 12
Figure 6 – Components of a media server . 12
Figure 7 – Components of a media client . 14
Figure 8 – Modular expansion of a media server and media client . 17
Figure 9 – Overall interaction flow of the IGRS AV system . 18
Figure 10 – Flow of centralised device group management from the perspective of a
master device . 23
Figure 11 – Flow of centralised device group management from the perspective of
slave device . 24
Figure 12 – Flow of content index service device group management from the
perspective of media server set as CIS group master . 27
Figure 13 – Flow of content index service device group management from the
perspective of a media server set as CIS group slave . 28
Figure 14 – Flow of AV multicast device group management from the perspective of
master device . 31
Figure 15 – Flow of audio video multicast device group management from the
perspective of a slave device . 32
Figure 16 – Interaction flow of dynamic service invocation . 32
Figure 17 – Interaction flow of AV playback . 34
Figure 18 – Control of media server initiated transport based on BCM (IGRS dynamic
service invocation module located on media client) . 36

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– 4 – 14543-5-21  ISO/IEC:2012(E)
Figure 19 – Control of media server initiated transport based on BCM (IGRS dynamic
service invocation module located on a media server) . 37
Figure 20 – Control of media server initiated transport based on SOAP . 37
Figure 21 – Control of a media client initiated transport based on BCM (IGRS dynamic
service invocation module located on a media client) . 38
Figure 22 – Control of media client initiated transport based on BCM (IGRS dynamic
service invocation module located on media server) . 38
Figure 23 – Control of media client initiated transport based on SOAP . 39
Figure 24 – Flow of multicast AV playback . 40
Figure 25 – Interaction flow of collaborative content analysis . 42
Figure 26 – Interaction flow of a media client accessing a content index service device
group . 43
Figure 27 – Flow of content recommendation by offline personalisation . 44
Figure 28 – Flow of content recommendation by online personalization . 44

Table 1 – IGRS device group inner-group information exchange notification message . 20
Table 2 – IGRS device group inner-group information exchange request message . 21
Table 3 – IGRS device group inner-group information exchange response message . 22
Table 4 – Content index service device group online advertisement message . 25
Table 5 – Audio video multicast device group online advertisement message . 29
Table 6 – Service invocation request message . 46
Table 7 – Service invocation response message . 47
Table 8 – Content directory object update notification message . 48
Table 9 – Service attribute update notification message. 51

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14543-5-21  ISO/IEC:2012(E) – 5 –
INFORMATION TECHNOLOGY –
HOME ELECTRONIC SYSTEM (HES) ARCHITECTURE –

Part 5-21: Intelligent grouping and resource sharing
for HES Class 2 and Class 3 –
Application profile – AV profile


FOREWORD
1) ISO (International Organization for Standardization) and IEC (International Electrotechnical Commission) form the
specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in
the development of International Standards. Their preparation is entrusted to technical committees; any ISO and
IEC member body interested in the subject dealt with may participate in this preparatory work. International
governmental and non-governmental organizations liaising with ISO and IEC also participate in this preparation.
2) In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1.
Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the national bodies casting a vote.
3) The formal decisions or agreements of IEC and ISO 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 and ISO member bodies.
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Any divergence between any ISO/IEC publication and the corresponding national or regional publication
should be clearly indicated in the latter.
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any equipment declared to be in conformity with an ISO/IEC publication.
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ISO or ISO/IEC publications.
9) 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.
10) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of
patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights.
International Standard ISO/IEC 14543-5-21 was prepared by subcommittee 25:
Interconnection of information technology equipment, of ISO/IEC joint technical committee 1:
Information technology.
The list of all currently available parts of the ISO/IEC 14543 series, under the general title
Information technology – Home electronic system (HES) architecture, can be found on the
IEC web site.
This International Standard has been approved by vote of the member bodies, and the voting
results may be obtained from the address given on the second title page.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

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– 6 – 14543-5-21  ISO/IEC:2012(E)
INTRODUCTION
ISO/IEC 14543-5, Information technology – Home electronic system (HES) architecure –
Part 5: Intelligent Grouping and Resource Sharing for HES (IGRS), consists of six parts:
 IGRS Part 5-1: Core protocol
• Specifies the TCP/IP protocol stack as the basis and the HTTP protocol as the
message-exchanging framework among devices.
• Specifies a series of device and service interaction/invocation standards, including
device and service discovery protocol, device and service description, service
invocation, security mechanisms, etc.
• Specifies core protocols for a type of home network that supports streaming media and
other high-speed data transport within a home.
 IGRS Parts 5-2#: Application profile
• Based on the IGRS Core Protocol.
• Specifies a device and service interaction mechanism, as well as application interfaces
used in IGRS basic applications.
• Multiple application profiles are specified, including:
• Part 5-21: AV profile
• Part 5-22: File profile
• Additional application profiles are planned (part numbers to be assigned)
• Part 5-2w: DVD profile
• Part 5-2x: QoS profile
• Part 5-2y: DMCP profile
• Part 5-2z: Universal control profile
 IGRS Part 5-3: Basic application
• Includes an IGRS basic application list.
• Specifies a basic application framework.
• Specifies operation details (device grouping, service description template, etc.),
function definitions and service invocation interfaces.
 IGRS Part 5-4: Device validation
• Specifies a standard method to validate an IGRS-compliant device.
 IGRS Part 5-5: Device type
• Specifies IGRS Device types used in IGRS applications.
 IGRS Part 5-6: Service type
• Specifies basic service types used in IGRS applications.

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14543-5-21  ISO/IEC:2012(E) – 7 –
INFORMATION TECHNOLOGY –
HOME ELECTRONIC SYSTEM (HES) ARCHITECTURE –

Part 5-21: Intelligent grouping and resource sharing
for HES Class 2 and Class 3 –
Application profile – AV profile



1 Scope
This part of ISO/IEC 14543 specifies the media data stream service profile, the device
interaction flow, the request and response message format used in device interaction and the
description format of services provided by the device.
This part of ISO/IEC 14543 is applicable to computers, household appliances and commun-
ication devices that implement media data streaming by wired or wireless means.
2 Normative references
The following referenced documents are indispensable for the application of this document.
For dated references, only the edition cited applies. For undated references, the latest edition
of the referenced document, including any amendments, applies.
ISO/IEC 14543-5-1:2010, Information technology – Home electronic system (HES)
architecture – Part 5-1: Intelligent grouping and resource sharing for Class 2 and Class 3 –
Core protocol
ISO/IEC 14543-5-6:2012, Information technology – Home electronic system (HES)
architecture –Part 5-6:— Intelligent grouping and resource sharing for HES Class 2 and
Class 3 – Service type
ISO/IEC 29341-3-1:2008, Information technology – UPnP Device Architecture – Part 3-1:
Audio Video Device Control Protocol – Audio Video Architecture
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this document the following terms and definitions apply.
3.1.1
audio video multicast device group
type of media device group consisting of a media server and media client with multicast
capability for an AV multicast playback application
3.1.2
content index service device group
type of media device group which consists of multiple media servers for managing content
across multiple media servers in a distributed, collaborative and load-balancing manner
3.1.3
IGRS client
application that invokes the services of one or more connected IGRS devices

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– 8 – 14543-5-21  ISO/IEC:2012(E)
NOTE Multiple client instances can exist on a network simultaneously.
3.1.4
IGRS device
information device that conforms to the IGRS specification
3.1.5
IGRS dynamic service invocation module
part of the AV application logic to orchestrate the interaction of application services according
to the capability of the device or device group involved and to coordinate the service
invocation sequence between the media server and media client
NOTE The IGRS dynamic service invocation module should be implemented on a media server, a media client or
another separate device.
3.1.6
IGRS service
sharable resource encapsulated in an IGRS device by implementing application interfaces
and providing services for other IGRS devices
NOTE An IGRS service has an invocation interface that meets the requirements of the IGRS specification. These
invocation interfaces are described and announced on the network through the IGRS service description
specification.
3.1.7
IGRS specification
ISO/IEC 14543-5 series of standards
3.1.8
media client
audio/video device in an IGRS network that possesses multimedia decoding capability
NOTE Examples of media client devices include a TV, set top box, etc. The media client may access content on
the media server as the destination device in an audio/video application.
3.1.9
media device group
embodiment of device group in an audio/video system and a type of centralised device group
defined in ISO/IEC 14543-5-1
NOTE A Media device group consists of two classes: content index service device group and audio video
multicast device group.
3.1.10
media server
audio/video device in IGRS network that possesses storage and computing capabilities
NOTE Examples of media server devices include a PC, network storage server, etc. The media server may
provide a network interface to other audio/video devices in order to access content managed by the media server
as the source device in an audio/video application.

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14543-5-21  ISO/IEC:2012(E) – 9 –
3.2 Abbreviations
AV Audio/Video
BCM Back Channel Message
CIS Content Index Service
CMS Connection Management Service
DRM Digital Rights Management
IGRS Intelligent Grouping and Resource Sharing
MAN Mandatory, also refer to message definitions in ISO/IEC 14543-5-1
MC Media Client
MCTMS Media Client Transport Management Service
MP Media Player
MR Media Recorder
MS Media Server
MSTMS Media Server Transport Management Service
QoS Quality of Service
RMS Rendering Management Service
RTP Real-time Transport Protocol
RTSP Real-Time Streaming Protocol
SOAP Simple Object Access Protocol
STB Set Top Box
3.3 Conventions
For the convenience of the implementer, a number of XML schemas specified in this standard
can also be found on the World Wide Web. In case of any differences, the definitions of this
standard shall prevail.
4 Conformance
For conformance to this International Standard the following applies.
• The IGRS AV profile interaction model shall conform to the architecture specification
contained in Clause 5.
• The relevant AV device (media server or media client) and device group (CIS device group,
AV multicast device group) shall conform to the specifications contained in Clause 6.
• AV service invocation flow shall conform to the specifications described in Clause 7.
• AV invocation session setup procedure and message formats shall conform to the
specifications contained in Clause 8.
5 Architecture
5.1 Overview
The IGRS AV application profile describes the composition of an IGRS AV system and an
interaction model for AV devices and device groups in AV applications. An AV device may be
a TV, VCR, CD/DVD player, set top box (STB), audio system, camera or digital photo frame.
An AV device group is a set of devices consisting of multiple AV devices. The IGRS AV
application profile supports transporting multimedia contents among IGRS AV devices using
any transport protocol and any media format.

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– 10 – 14543-5-21  ISO/IEC:2012(E)
The IGRS AV system specifies a flexible architecture to support many different types of AV
applications. From the perspective of the device types involved in any given application, the
IGRS AV system supports a single device AV application and a device group AV application.
The IGRS AV system supports a range of application types from simple AV playback to
advanced personalised content management.
The IGRS AV system typically should consist of three types of devices, as shown in Figure 1:
media server, media client and media device group. Correspondingly, four types of interaction
models between devices in an IGRS AV application should be supported: single media server
and single media client (required), multiple media servers and single media client, single
media server and multiple media clients, multiple media servers and multiple media clients.
5.2 specifies each interaction model in detail.
Media Server Media Client
Media Server Media Server Media Client Media Client
Media Server Media Client
Media Device Group Media Device Group
(Content Index Service Device Group) (Audio Video Multicast Device Group)

Figure 1 – Device grouping model of the IGRS AV profile
5.2 Four types of device interaction models in the IGRS AV application
5.2.1 Interaction model between a single media server and a single media client
When an IGRS AV application involves a single media server and a single media client (e.g.,
AV play between a media server an
...

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