ISO-21000-17-2006.pdf
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1、 Reference number ISO/IEC 21000-17:2006(E) ISO/IEC 2006 INTERNATIONAL STANDARD ISO/IEC 21000-17 First edition 2006-09-15 Information technology Multimedia framework (MPEG-21) Part 17: Fragment Identification of MPEG Resources Technologies de linformation Cadre multimdia (MPEG-21) Partie 17: Identifi
2、cation de fragments de ressources MPEG Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/07/2007 23:27:04 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC
3、21000-17:2006(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downlo
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6、ven below. ISO/IEC 2006 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 below or ISOs m
7、ember 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 2006 All rights reserved Copyright International Organization for Standardizatio
8、n Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/07/2007 23:27:04 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 21000-17:2006(E) ISO/IEC 2006 All rights reserved iii Contents Page Foreword iv Introduction.
9、vi 1 Scope . 1 1.1 General. 1 1.2 Organization of this document 1 1.3 Relationship with the MPEG-21 Framework 2 2 Normative references. 2 3 Terms, definitions and abbreviated terms . 3 3.1 Definitions . 3 3.2 Abbreviations 6 3.3 Namespaces 6 4 MPEG URI Fragment Identifier Framework 7 4.1 Introductio
10、n. 7 4.2 W3C XPointer Framework 7 4.3 Use of namespaces and of the xmlns() pointer scheme 7 4.4 Hierarchical combination of pointer parts . 8 4.5 Syntax 8 4.6 Character escaping. 9 4.7 Processing. 9 5 Pointer schemes. 10 5.1 Introduction. 10 5.2 The ffp() pointer scheme 10 5.3 The offset() pointer s
11、cheme 12 5.4 The mp() pointer scheme 12 5.5 The mask() pointer scheme 25 6 Logical Model representation 26 6.1 Introduction. 26 6.2 Schema for Logical Model representation. 26 6.3 Semantics 27 6.4 Schema for schemas 28 6.5 Logical Model for MPEG-4 files. 28 Annex A (informative) Examples of spatiote
12、mporal fragments. 31 Annex B (informative) Logical model of a resource - examples 34 Annex C (informative) Time scheme syntaxes 38 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/07/2007
13、 23:27:04 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 21000-17:2006(E) iv ISO/IEC 2006 All rights reserved Foreword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for w
14、orldwide standardization. National bodies that are members of ISO or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activity. ISO and IEC technical committees collaborat
15、e 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 of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. International Standards are
16、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 International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an I
17、nternational 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 document may be the subject of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent right
18、s. ISO/IEC 21000-17 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 29, Coding of audio, picture, multimedia and hypermedia information. ISO/IEC 21000 consists of the following parts, under the general title Information technology Multimedia framework
19、 (MPEG-21): Part 1: Vision, Technologies and Strategy Technical Report Part 2: Digital Item Declaration Part 3: Digital Item Identification Part 4: Intellectual Property Management and Protection Components Part 5: Rights Expression Language Part 6: Rights Data Dictionary Part 7: Digital Item Adapta
20、tion Part 8: Reference Software Part 9: File Format Part 10: Digital Item Processing Part 11: Evaluation Tools for Persistent Association Technologies Technical Report Part 12: Test Bed for MPEG-21 Resource Delivery Technical Report Part 14: Conformance Testing Part 15: Event Reporting Copyright Int
21、ernational Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/07/2007 23:27:04 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 21000-17:2006(E) ISO/IEC 2006 All rights reserved v
22、Part 16: Binary Format Part 17: Fragment Identification of MPEG Resources The following parts are under preparation: Part 18: Digital Item Streaming Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for
23、Resale, 04/07/2007 23:27:04 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 21000-17:2006(E) vi ISO/IEC 2006 All rights reserved Introduction Today, many elements exist to build an infrastructure for the delivery and consumption of multimedia content. There is, howe
24、ver, no “big picture” to describe how these elements, either in existence or under development, relate to each other. The aim for ISO/IEC 21000 (MPEG-21) is to describe how these various elements fit together. Where gaps exist, MPEG-21 will recommend which new International Standards are required. I
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