ISO-14496-1-AMD-1-2005.pdf
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1、 Reference number ISO/IEC 14496-1:2004/Amd.1:2005(E) ISO/IEC 2005 INTERNATIONAL STANDARD ISO/IEC 14496-1 Third edition 2004-11-15 AMENDMENT 1 2005-10-15 Information technology Coding of audio-visual objects Part 1: Systems AMENDMENT 1: Text profile and level indication Technologies de linformation C
2、odage des objets audiovisuels Partie 1: Systmes AMENDEMENT 1: Profil de texte et indication de niveau ISO/IEC 14496-1:2004/Amd.1:2005(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
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5、s. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO/IEC 2005 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 mechan
6、ical, including photocopying and microfilm, without permission in writing from either ISO at the address below 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.
7、org Published in Switzerland ii ISO/IEC 2005 All rights reserved ISO/IEC 14496-1:2004/Amd.1:2005(E) ISO/IEC 2005 All rights reserved iii Foreword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide
8、 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 collaborate in fie
9、lds 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 drafted
10、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 Internati
11、onal 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 rights. Amend
12、ment 1 to ISO/IEC 14496-1:2004 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 14496 specifies a system for the communication of interactive audio-visual scenes. The specific
13、ation includes the following elements: 1. the coded representation of natural or synthetic, two-dimensional (2D) or three-dimensional (3D) objects that can be manifested audibly and/or visually (audio-visual objects) (specified in part 1, 2 and 3 of ISO/IEC 14496); 2. the coded representation of the
14、 spatio-temporal positioning of audio-visual objects as well as their behaviour in response to interaction (scene description, specified in parts 11 and 20 of ISO/IEC 14496); 3. the coded representation of information related to the management of data streams (synchronization, identification, descri
15、ption and association of stream content, specified in parts 11 and 20 of ISO/IEC 14496); 4. a generic interface to the data stream delivery layer functionality (specified in part 6 of ISO/IEC 14496); 5. an application engine for programmatic control of the player: format, delivery of downloadable Ja
16、va byte code as well as its execution lifecycle and behaviour through APIs (specified in part 11 of ISO/IEC 14496); and 6. a file format to contain the media information of an ISO/IEC 14496 presentation in a flexible, extensible format to facilitate interchange, management, editing, and presentation
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