CAN CSA-ISO IEC 14496-4AC-2009 Information technology - Coding of audio-visual objects - Part 4 Conformance testing - AMENDMENT 29 Symbolic Music Representation conformance.pdf
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1、Information technology Coding of audio-visual objects Part 4: Conformance testing AMENDMENT 29: Symbolic Music Representation conformanceAmendment 29:2009 (IDT) toNational Standard of CanadaCAN/CSA-ISO/IEC 14496-4-06(ISO/IEC 14496-4:2004, IDT)NOT FOR RESALE.PUBLICATION NON DESTINE LA REVENTE.CSA Sta
2、ndards Update ServiceAmendment 29:2009 toCAN/CSA-ISO/IEC 14496-4-06October 2009Title: Information technology Coding of audio-visual objects Part 4: Conformance testing AMENDMENT 29: Symbolic Music Representation conformancePagination: 16 pages (iii preliminary and 13 text)To register for e-mail noti
3、fication about any updates to this publicationgo to www.ShopCSA.caclick on E-mail Services under MY ACCOUNTclick on CSA Standards Update ServiceThe List ID that you will need to register for updates to this publication is 2418413.If you require assistance, please e-mail techsupportcsa.ca or call 416
4、-747-2233.Visit CSAs policy on privacy at www.csagroup.org/legal to find out how we protect your personal information.Reference numberISO/IEC 14496-4:2004/Amd.29:2008(E)ISO/IEC 2008INTERNATIONAL STANDARD ISO/IEC14496-4Second edition2004-12-15AMENDMENT 292008-07-01Information technology Coding of aud
5、io-visual objects Part 4: Conformance testing AMENDMENT 29: Symbolic Music Representation conformance Technologies de linformation Codage des objets audiovisuels Partie 4: Essai de conformit AMENDEMENT 29: Conformit de la reprsentation musicale symbolique ISO/IEC 14496-4:2004/Amd.29:2008(E) PDF disc
6、laimer 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 downloading this file, parties
7、accept therein the responsibility of not infringing Adobes licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to t
8、he file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHT PROT
9、ECTED 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 below or IS
10、Os 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 ii ISO/IEC 2008 All rights reservedAmendment 29:2009 toCAN/CSA-ISO/IEC 14496-4-06ISO/IEC 14496-4:2004/Amd.29:200
11、8(E) ISO/IEC 2008 All rights reserved iiiForeword ISO (the International 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
12、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 fields of mutual interest. Other international organizations, governmental and non-governmental, in
13、 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 in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of the joint
14、 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 International Standard requires approval by at least 75 % of the national bodies casting a vote. Attentio
15、n 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. Amendment 29 to ISO/IEC 14496-4:2004 was prepared by Joint Technical Committee ISO/IEC JTC 1, Informa
16、tion technology, Subcommittee SC 29, Coding of audio, picture, multimedia and hypermedia information. Amendment 29:2009 toCAN/CSA-ISO/IEC 14496-4-06ISO/IEC 14496-4:2004/Amd.29:2008(E) ISO/IEC 2008 All rights reserved 1Information technology Coding of audio-visual objects Part 4: Conformance testing
17、AMENDMENT 29: Symbolic Music Representation conformance In Clause 2 “Normative references” add: ISO/IEC 14496-23:2008, Information technology Coding of audio-visual objects Part 23: Symbolic Music Representation Add a new Clause 11 “Symbolic Music Representation”: 11 Symbolic Music Representation 11
18、.1 General This clause specifies how tests can be designed to verify whether bitstreams and decoders meet requirements specified in ISO/IEC 14496-23. In this part of ISO/IEC 14496, encoders are not addressed specifically. An encoder may be said to be an ISO/IEC 14496-23 encoder if it generates bitst
19、reams compliant with the syntactic and semantic bitstream requirements specified in ISO/IEC 14496-23. Procedures are described for testing conformance of bitstreams and decoders to the requirements defined in ISO/IEC 14496-23. Given the set of characteristics claimed, the requirements that must be m
20、et are fully determined by ISO/IEC 14496-23. This clause summarizes the requirements; cross references them to characteristics, and defines how conformance with them can be tested. Guidelines are given on constructing tests to verify bitstream and decoder conformance. In addition, some test bitstrea
21、ms implemented according to those guidelines are provided as an electronic annex. Symbolic Music Representation (SMR) objects allow modeling the visual aspects of a music score, and audio information or annotations related to the music piece. SMR includes the definition of XML schemas (for represent
22、ing music symbols composing the music score and describing the rules to be used for placement of music symbols) and additional binary information (for presenting the music score synchronously with a multimedia scene). This clause describes criteria to test SMR Conformance for bitstreams and decoders
23、. 11.2 SMR Conformance testing 11.2.1 AudioSpecificConfig characteristics The bitstream provider may apply restrictions to the following parameters of the AudioSpecificConfig: 1) audioObjectType: AOT 40 (uncompressed/Gzip-ed XML) or AOT 41 (BiM encoded XML) 2) numberOfParts: the number of parts comp
24、osing the score 3) notationFormat: can be CWMN, BRAILLE, SPOKENMUSIC, OTHER 4) codingType: can be XML, GZIP, BIM Amendment 29:2009 toCAN/CSA-ISO/IEC 14496-4-06ISO/IEC 14496-4:2004/Amd.29:2008(E) 2 ISO/IEC 2008 All rights reservedAccessUnit characteristics The bitstream provider may apply no restrict
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