ISO/IEC 29341-14-3:2011

Information technology - UPnP Device Architecture - Part 14-3: Audio Video Device Control Protocol - Level 3 - Media Server Device

ISO/IEC 29341-14-3:2011(E) is a device specification compliant with the UPnPTM Device Architecture version 1.0. It defines a device type referred to herein as MediaServer. The MediaServer specification defines a general-purpose device that can be used to instantiate any Consumer Electronics (CE) device that provides AV content (for example, media) to other UPnP devices on the home network. It is based on the UPnP AV Architecture Framework (described in another document). It exposes its content via the ContentDirectory service (refer to the ContentDirectory service specification for details). The MediaServer MAY also provide functionality to record content using heScheduledRecording service (refer to the ScheduledRecording service specification). As such, the MediaServer can handle any specific type of media, any data format, and transfer protocol.

General Information

• Status: Published
• Publication Date: 29-Aug-2011
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 03.100.40 - Research and development
• ICS: 03.120.01 - Quality in general
• ICS: 35.200 - Interface and interconnection equipment
• Technical Committee: ISO/IEC JTC 1 - Information technology
• Current Stage: PPUB - Publication issued
• Start Date: 30-Nov-2011
• Completion Date: 29-Aug-2011

Standards Content (Sample)

ISO/IEC 29341-14-3
Edition 1.0 2011-08
INTERNATIONAL
STANDARD
colour
inside
Information technology – UPnP device architecture –
Part 14-3: Audio Video Device Control Protocol – Level 3 – Media Server Device

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ISO/IEC 29341-14-3
Edition 1.0 2011-08
INTERNATIONAL
STANDARD
colour
inside
Information technology – UPnP device architecture –
Part 14-3: Audio Video Device Control Protocol – Level 3 – Media Server Device

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
K
ICS 35.200 ISBN 978-2-88912-653-8

29341-14-3 © ISO/IEC:2011(E)
CONTENTS
1  Overview and Scope . 2
1.1  Introduction . 2
1.2  Notation . 3
1.2.1  Data Types . 3
1.2.2  Strings Embedded in Other Strings . 3
1.2.3  Extended Backus-Naur Form . 4
1.3  Derived Data Types . 4
1.3.1  Comma Separated Value (CSV) Lists . 4
1.4  Management of XML Namespaces in Standardized DCPs . 6
1.4.1  Namespace Prefix Requirements . 9
1.4.2  Namespace Names, Namespace Versioning and Schema Versioning . 10
1.4.3  Namespace Usage Examples . 12
1.5  Vendor-defined Extensions . 12
1.5.1  Vendor-defined Action Names . 12
1.5.2  Vendor-defined State Variable Names . 13
1.5.3  Vendor-defined XML Elements and attributes . 13
1.5.4  Vendor-defined Property Names . 13
1.6  References . 13
2  Device Definitions . 16
2.1  Device Type . 16
2.2  Device Model . 16
2.2.1  Description of Device Requirements . 17
2.2.2  Relationships between Services . 17
2.3  Theory of Operation . 18
2.3.1  Device Discovery . 18
2.3.2  Locating Desired Content . 18
2.3.3  Preparing to Transfer the Content . 18
2.3.4  Controlling the Transfer of the Content . 19
2.3.5  Recording Content . 19
3  XML Device Description . 19
4  Test . 20

Figure 1 — MediaServer Functional Diagram . 2

Table 1-1 — EBNF Operators . 4
Table 1-2 — CSV Examples . 6
Table 1-3 — Namespace Definitions . 8
Table 1-4 — Schema-related Information . 9
Table 1-5 — Default Namespaces for the AV Specifications . 10
Table 2-6 — Device Requirements . 17

29341-14-3  ISO/IEC:2011(E) – 0 – 29341-14-3 © ISO/IEC:2011(E)

INFORMATION TECHNOLOGY –
UPNP DEVICE ARCHITECTURE –
Part 14-3: Audio Video Device Control Protocol –
Level 3 – Media Server Device
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.
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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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International Standard ISO/IEC 29341-14-3 was prepared by UPnP Forum Steering
committee , was adopted, under the fast track procedure, 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 29341 series, under the general title
Information technology – UPnP device 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.

—————————
rd
UPnP Forum Steering committee, UPnP Forum, 3855 SW 153 Drive, Beaverton, Oregon 97006 USA. See also
“Introduction”.
29341-14-3 © ISO/IEC:2011(E) – 1 – 29341-14-3  ISO/IEC:2011(E)

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 publication using a colour printer.

XXXX: © IEC:2010 — 2 — 29341-14-3 © ISO/IEC:2011(E)
1 Overview and Scope
1.1 Introduction
TM
This device specification is compliant with the UPnP Device Architecture version 1.0. It
defines a device type referred to herein as MediaServer.
The MediaServer specification defines a general-purpose device that can be used to
instantiate any Consumer Electronics (CE) device that provides AV content (for example,
media) to other UPnP devices on the home network. It is based on the UPnP AV Architecture
Framework (described in another document). It exposes its content via the ContentDirectory
service (refer to the ContentDirectory service specification for details). The MediaServer MAY
also provide functionality to record content using the ScheduledRecording service (refer to the
ScheduledRecording service specification). As such, the MediaServer can handle any specific
type of media, any data format, and transfer protocol.
Example instances of a MediaServer include traditional devices such as VCRs, CD Players,
DVD Players, audio-tape players, still-image cameras, camcorders, radios, TV Tuners, and
set-top boxes. Additional examples of a MediaServer also include new digital devices such as
MP3 servers, PVRs, and Home MediaServers such as the PC. Although these devices contain
diverse (AV) content in one form or another, the MediaServer (via the ContentDirectory
service) is able to expose this content to the home network in a uniform and consistent
manner. This ability allows the MediaServer to instantiate traditional single-function devices
as well as more recent multi-function devices such as VCR-DVD players and the general
purpose Home MediaServer, which contains a wide variety of content such as MPEG2 video,
CD audio, MP3 and/or WMA audio, JPEG images, etc.
The MediaServer specification is very lightweight and can easily be implemented on low-
resource devices such as still-image cameras or MP3 players that want to expose their local
content to the home network. The MediaServer can also be used for high-end Home
MediaServers that contain dozens of Gigabytes of heterogeneous content. Refer to the
Theory Of Operation clause for some specific examples of the MediaServer.
A full-featured MediaServer device provides clients with the following capabilities:
• Enumerate and query any of the content that the MediaServer can provide to the home
network.
• Negotiate a common transfer protocol and data format between the MediaServer and
target device.
• Control the flow of the content (for example, FF, REW, etc).
• Copy (import) content to the MediaServer from another device.
• Record content using the ScheduledRecording service.
This device specification does not provide:
• The ability to render AV content.

Figure 1 — MediaServer Functional Diagram

29341-14-3 XXXX: © IEC© ISO/IEC:2011(E):2010 — 3 —
The un-shaded blocks represent the UPnP services that are contained by a MediaServer
devi
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