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1、 Reference number ISO/IEC 23000-7:2008(E) ISO/IEC 2008 INTERNATIONAL STANDARD ISO/IEC 23000-7 First edition 2008-08-15 Information technology Multimedia application format (MPEG-A) Part 7: Open access application format Technologies de linformation Format pour application multimdia (MPEG-A) Partie 7
2、: Format pour application daccs ouvert Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 10/25/2008 04:55:03 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 23000-7:2008(E) P
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6、HT PROTECTED DOCUMENT ISO/IEC 2008 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address belo
7、w or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO/IEC 2008 All rights reserved Copyright International Organization for Sta
8、ndardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 10/25/2008 04:55:03 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 23000-7:2008(E) ISO/IEC 2008 All rights reserved iii Contents Page Foreword iv Introduction.v 1 Scop
9、e1 2 Normative References.1 3 Abbreviated terms.2 4 Namespace conventions 2 5 System overview .3 6 Technical Specification.3 6.1 Introduction3 6.2 Digital Item Declaration.3 6.3 Identifiers10 6.4 Metadata.10 6.5 Rights Expressions.13 6.6 Digital Signatures14 6.7 Event Reporting.14 6.8 File format 22
10、 Annex A (informative) An example of DID, DII and REL in Open Access .25 Annex B (informative) An example of MPEG-7 metadata in Open Access .28 Annex C (informative) An example of Event Reporting in Open Access30 Annex D (informative) An example of derivation.33 Bibliography36 Copyright Internationa
11、l Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 10/25/2008 04:55:03 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 23000-7:2008(E) iv ISO/IEC 2008 All rights reserved Foreword ISO (the Internat
12、ional Organization for Standardization) and IEC (the 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 through technical committees established
13、 by the respective organization to deal with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. In the field
14、 of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of the joint technical committee is to prepare International Standards. Draft I
15、nternational 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. Attention is drawn to the possibility that some of the elements of this doc
16、ument may be the subject of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights. ISO/IEC 23000-7 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 29, Coding of audio, picture, multimedia and hypermedia
17、 information. ISO/IEC 23000 consists of the following parts, under the general title Information technology Multimedia application format (MPEG-A): Part 1: Purpose for multimedia application formats Technical Report Part 2: MPEG music player application format Part 3: MPEG photo player application f
18、ormat Part 4: Musical slide show application format Part 5: Media streaming application format Part 7: Open access application format Part 8: Portable video application format Part 9: Digital multimedia broadcasting application format Part 10: Video surveillance application format Copyright Internat
19、ional Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 10/25/2008 04:55:03 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 23000-7:2008(E) ISO/IEC 2008 All rights reserved v Introduction The open a
20、ccess application format is a format to ease the exchange and promotion of open contents. It is designed for the cases where users own rights to a piece of content and have an interest in releasing it in such a way that other users can freely access it. However, the users do not want to make the con
21、tent public domain. Users want to release a piece of content that is governed in a “light-weight” form. This type of release is called “open access” and the set of technologies that support it is called open access application format. Examples of open access contents are publicity material and tease
22、rs. One important set of major potential applications is represented by the BBCs Creative Archive project. Another important application is in the scientific area, where publications, research results or e-learning material are published. Open access is an application format (AF) and is specified as
23、 Part 7 of MPEG-A (ISO/IEC 23000-7). The open access AF defines a packaging format that can contain any type of content. Additionally, the AF contains a license for each content, which describes how the content may be used. These licenses are created by the authors of the content, who want to publis
24、h their content, but still want to retain some specific rights. The license is in a machine-readable format and helps the consumer to understand, what he is allowed to do with the content. Furthermore it enables the usage of automatic processing and interpretation of these licenses. The open access
25、AF is a standardized and interoperable solution for the release and exchange of contents. It enables the author of a content to package his creation into a single container and publish it together with a predefined license. It is designed to emphasize the exchange of contents and the re-usage or der
26、ivation of the contents by other users. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 10/25/2008 04:55:03 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright International
27、Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 10/25/2008 04:55:03 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISO/IEC 23000-7:2008(E) ISO/IEC 2008 All rights reserved 1 Inform
28、ation technology Multimedia application format (MPEG-A) Part 7: Open access application format 1 Scope This International Standard specifies a container format, which can contain any type of content and can also transport additional metadata. This packaging mechanism offers the possibility to enrich
29、 the content with human and machine-readable metadata and is not limited to a specific content type. Unlike other application formats, the open access application format is not a multimedia-based format. The open access application format doesnt use encryption mechanisms to protect the access of the
30、 content. However the content can be protected by digital signatures, which allow the verification of the integrity, authenticity and non-repudiation of the content. 2 Normative References The following referenced documents are indispensable for the application of this document. For dated references
31、, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 3166-1, Codes for the representation of names of countries and their subdivisions Part 1: Country codes ISO 3166-2, Codes for the representation of names of
32、 countries and their subdivisions Part 2: Country subdivision code ISO/IEC 15938-5, Information technology Multimedia content description interface Part 5: Multimedia description schemes ISO/IEC 21000-2, Information technology Multimedia framework (MPEG-21) Part 2: Digital Item Declaration ISO/IEC 2
33、1000-3, Information technology Multimedia framework (MPEG-21) Part 3: Digital Item Identification ISO/IEC 21000-5, Information technology Multimedia framework (MPEG-21) Part 5: Rights Expression Language ISO/IEC 21000-9, Information technology Multimedia framework (MPEG-21) Part 9: File Format ISO/I
34、EC 21000-15, Information technology Multimedia framework (MPEG-21) Part 15: Event Reporting Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 10/25/2008 04:55:03 MDTNo reproduction or networking permitted wit
35、hout license from IHS -,-,- ISO/IEC 23000-7:2008(E) 2 ISO/IEC 2008 All rights reserved 3 Abbreviated terms For the purposes of this document, the following abbreviated terms apply. DI Digital Item DID Digital Item Declaration DIDL Digital Item Declaration Language DII Digital Item Identification ER
36、Event Report ER-R Event Report Request RDD Rights Data Dictionary REL MPEG-21 Rights Expression Language AF Application Format OA Open Access OAC Open Access Content URI Uniform Resource Identifier 1 URL Uniform Resource Locator 1 XML Extensible Markup Language 2 4 Namespace conventions Qualified na
37、mes are written throughout this part of ISO/IEC 23000 consistently with a namespace prefix followed by a colon followed by the local part of the qualified name. Table 1 contains these prefixes and the corresponding namespace. If not declared otherwise, the default namespace in this document is defin
38、ed as urn:mpeg:mpeg21:2002:02-DIDL-NS and the different prefixes are bound to the namespaces as listed in the table. Table 1 Prefixes to Namespaces Prefix Namespace didl urn:mpeg:mpeg21:2002:02-DIDL-NS dii urn:mpeg:mpeg21:2002:01-DII-NS er urn:mpeg:mpeg21:2007:01-ERL-OA-NS m3x urn:mpeg:mpeg21:2006:0
39、1-REL-M3X-NS m1x urn:mpeg:mpeg21:2005:01-REL-M1X-NS mx urn:mpeg:mpeg21:2003:01-REL-MX-NS r urn:mpeg:mpeg21:2003:01-REL-R-NS sx urn:mpeg:mpeg21:2003:01-REL-SX-NS mpeg7 urn:mpeg:mpeg7:schema:2004 xsd http:/www.w3.org/2001/XMLSchema xsi http:/www.w3.org/2001/XMLSchema-instance NOTE The prefixes xml and
40、 xmlns are normatively defined by Namespaces in XML (see W3C REC-xml-names-19990114). All other prefixes are informative and are used by convention for consistency in this part of ISO/IEC 23000. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=
41、Boeing Co/5910770001 Not for Resale, 10/25/2008 04:55:03 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 23000-7:2008(E) ISO/IEC 2008 All rights reserved 3 5 System overview The Open Access Application Format provides mechanisms for the content consumer as well as t
42、he content authors. The author uses the format to release his content with attached Meta-information about his content and the corresponding license. The license can be embedded as a text, which can be presented, when the consumer wants to open, copy or adapt the content. Furthermore, the format hel
43、ps the author to notify the consumer about the intended way of using the content. These intentions can be expressed with the MPEG-21 REL OAC profile, which consists of several rights and conditions that can be selected by the author. The consumer of the content can be either a particular person or t
44、he public. The author can choose which specific rights he wants to grant under certain conditions. Additionally the author can apply MPEG-21 Event Reports, which can be used as a feedback mechanism. Every time a consumer e.g. opens a released content, the author receives a report, which tells him, t
45、hat his content was extracted. A similar event can be generated, when a consumer wants to derive a content. Then, the author of the content receives a notification that another user intends to reuse his content. When the author finally releases the file, unique identifiers are assigned to the conten
46、ts, so that they can be uniquely identified. The consumer uses the provided meta-information to ease the management of the available contents. As the information is machine-readable, it enables the consumer e.g. to find contents that match given criteria. 6 Technical Specification 6.1 Introduction T
47、he following subclauses list and reference MPEG technologies and describe their purpose for this part of ISO/IEC 23000. 6.2 Digital Item Declaration This part of ISO/IEC 23000 utilises ISO/IEC 21000-2 to associate content with a set of related information. For the identification of the contents ISO/
48、IEC 21000-3 is used. The following structures are needed from ISO/IEC 21000-2: DIDL Container Item Descriptor Statement Resource Component Annotation Annex A gives a full example about the usage of ISO/IEC 21000-2 in Open Access. The following subclauses describe the syntax and semantic of each element of ISO/IEC 2100-2. Copyright International Organization for Standardization Provided by IHS under licen