CAN CSA-ISO IEC 14496-4P-2009 Information technology - Coding of audio-visual objects - Part 4 Conformance testing - AMENDMENT 16 MPEG-J GFX conformance.pdf
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1、Information technology Coding of audio-visual objects Part 4: Conformance testing AMENDMENT 16: MPEG-J GFX conformanceAmendment 16:2009 (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 Standards Update Servi
2、ceAmendment 16:2009 toCAN/CSA-ISO/IEC 14496-4-06October 2009Title: Information technology Coding of audio-visual objects Part 4: Conformance testing AMENDMENT 16: MPEG-J GFX conformancePagination: 9 pages (iii preliminary and 6 text)To register for e-mail notification about any updates to this publi
3、cationgo 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 416-747-2233.Visit CSAs policy on privacy a
4、t www.csagroup.org/legal to find out how we protect your personal information.Reference numberISO/IEC 14496-4:2004/Amd.16:2008(E)ISO/IEC 2008INTERNATIONAL STANDARD ISO/IEC14496-4Second edition2004-12-15AMENDMENT 162008-02-15Information technology Coding of audio-visual objects Part 4: Conformance te
5、sting AMENDMENT 16: MPEG-J GFX conformance Technologies de linformation Codage des objets audiovisuels Partie 4: Essai de conformit AMENDEMENT 16: Conformit au GFX MPEG-J ISO/IEC 14496-4:2004/Amd.16:2008(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licens
6、ing 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 accept therein the responsibility of not infringing Adobes licensing policy. The ISO
7、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 the file; the PDF-creation parameters were optimized for printing. Every care has been
8、 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 PROTECTED DOCUMENT ISO/IEC 2008 All rights reserved. Unless otherwise specified, no part
9、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 member body in the country of the requester. ISO copyright office Case postale 56
10、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 16:2009 toCAN/CSA-ISO/IEC 14496-4-06ISO 14496-4:2004/Amd.16:2008(E) ISO 2008 All rights reserved iiiForeword ISO (the International Organization for Sta
11、ndardization) 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 by the respective organiz
12、ation 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 of information technology
13、, 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 International Standards ado
14、pted 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 document may be the subject o
15、f patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights. Amendment 16 to ISO/IEC 14495-4:2004 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 29, Coding of audio, picture, multimedia and hypermedia info
16、rmation. This amendment adds conformance of MPEG-J GFX as defined in ISO/IEC 14496-21:2006. Amendment 16:2009 toCAN/CSA-ISO/IEC 14496-4-06ISO/IEC 14496-4:2004/Amd.16:2008(E) ISO 2008 All rights reserved 1Information technology Coding of audio-visual objects Part 4: Conformance testing AMENDMENT 16:
17、MPEG-J GFX conformance Add the following to Clause 2 Normative References: ISO/IEC 14496-11:2005, Information technology Coding of audio-visual objects Part 11: Scene description and application engine ISO/IEC 14496-21:2006, Information technology Coding of audio-visual objects Part 21: MPEG-J Graph
18、ics Framework eXtensions (GFX) Replace subclause 4.6 on MPEG-J with the following: 4.6 MPEG-J 4.6.1 MPEG-J Conformance Points DEMUXMPEG-JApplicationMPEG-JDecodingBufferScene GraphManagerResourceManagerI/ODevicesNetworkManagerClassLoaderDMIFSceneGraphBIFSDecoderDecodingBuffers 1nMediaDecoders 1nCompo
19、sitionBuffers 1nCompositorand RendererVersion 1playerNW API SG API RM APILegendInterfaceControldataBackChannelChannelMD APIMPEG-JConformance PointFigure AMD16.1 MPEG-J Architecture with Conformance Point Amendment 16:2009 toCAN/CSA-ISO/IEC 14496-4-06ISO 14496-4:2004/Amd.16:2008(E) 2 ISO 2008 All rig
20、hts reservedThe architecture of MPEG-J is explained in ISO/IEC 14496-11 subclauses 10.1 and 10.2. MPEG-J data is defined and the delivery mechanism explained in ISO/IEC 14496-11 subclause 10.3. MPEG-J data is delivered as an elementary stream similar to video, audio and other elementary streams. Thi
21、s is de-multiplexed and stored in MPEG-J Decoding Buffers. These buffers feed the MPEG-J Decoder, which “decodes” it. In the case of classes (Java byte code), decoding means loading, while for the object and other data it means making the data available to the terminal. The MPEG-J Decoding Buffer co
22、nsists of MPEG-J Access Units. Each MPEG-J Access Unit contains either one class or one serialized object or one archive (a zip file) with a header. When this is decoded, the class file or the object data or the zip file is extracted and fed into the MPEG-J Class Loader as shown in Figure AMD16.1. B
23、itstream conformance point for MPEG-J is: MPEG-J Decoding At a bitstream conformance point, bitstreams will be acquired for use in testing. Terminal conformance point for MPEG-J is: MPEG-J Decoding Buffer MPEG-J API conformance Java Platform conformance An MPEG-J conformance point can be either an M
24、PEG-J bitstream conformance point or an MPEG-J Terminal conformance point. The MPEG-J bitstream conformance points deal with the syntactic aspects while the MPEG-J terminal conformance points address the semantics. 4.6.2 Bitstream Conformance Each bitstream shall meet the syntactic and semantic requ
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