1、Information technology Coding of audio-visual objects Part 4: Conformance testingAMENDMENT 37: Additional file format conformanceAmendment 37:2010 (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 U
2、pdate ServiceAmendment 37:2010 toCAN/CSA-ISO/IEC 14496-4-06December 2010Title: Information technology Coding of audio-visual objects Part 4: Conformance testing AMENDMENT 37: Additional file format conformancePagination:5 pages (iii preliminary and 2 text)To register for e-mail notification about an
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4、SAs policy on privacy at www.csagroup.org/legal to find out how we protect your personal information.Reference numberISO/IEC 14496-4:2004/Amd.37:2009(E)ISO/IEC 2009INTERNATIONAL STANDARD ISO/IEC14496-4Second edition2004-12-15AMENDMENT 372009-12-15Information technology Coding of audio-visual objects
5、 Part 4: Conformance testing AMENDMENT 37: Additional file format conformance Technologies de linformation Codage des objets audiovisuels Partie 4: Essai de conformit AMENDEMENT 37: Conformit de format de fichier additionnel ISO/IEC 14496-4:2004/Amd.37:2009(E) PDF disclaimer This PDF file may contai
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10、f 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 2009 All rights reservedAmendment 37:2010 to CAN/CSA-ISO/IEC 14496-4-06ISO/IEC 14496-4:2004/Amd.37:2009(E) ISO/IEC 2009 All rights r
11、eserved 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 of International Standards thr
12、ough 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 liaison with ISO and IEC, als
13、o 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 technical committee is to pre
14、pare 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. Attention is drawn to the possibility
15、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 37 to ISO/IEC 14496-4:2004 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee
16、SC 29, Coding of audio, picture, multimedia and hypermedia information. Amendment 37:2010 to CAN/CSA-ISO/IEC 14496-4-06ISO/IEC 14496-4:2004/Amd.37:2009(E) ISO/IEC 2009 All rights reserved 1Information technology Coding of audio-visual objects Part 4: Conformance testing AMENDMENT 37: Additional file
17、 format conformance Add the files to the repository, replacing the spreadsheet summary of features. In 4.7.6, add the following subclauses after 4.7.6.31: 4.7.6.32 compact-no-code-fec-1.iso3 This file contains one JPEG file stored as an item. Compact No-Code FEC is used and the file is partitioned i
18、nto one source block. The file contains also one hint track for FLUTE transmission. 4.7.6.33 compact-no-code-fec-2.iso3 This file contains one JPEG file stored as items. Compact No-Code FEC is used and the file is partitioned into three source blocks. The file contains also one hint track for FLUTE
19、transmission. 4.7.6.34 mbms-fec.iso3 This file contains two JPEG files stored as items. MBMS-FEC is used and both files are partitioned into one source block and several sub-blocks. Parity symbols for the source block are stored as an FEC reservoir item. The file contains also three hint tracks for
20、FLUTE transmission with FEC overheads 10 %, 20 % and 40 %. Each hint track defines transmission of both JPEG files over one FLUTE channel. 4.7.6.35 fragment-random-access-1.mp4 This uses movie fragment random access boxes (8.37: movie fragment random access, 8.38: track fragment random access, 8.39:
21、 movie fragment random access offset in ISO/IEC 14496-12:2008). These boxes help readers to search where random access points are. There are random access points at 1-sec interval. For the purpose of reference, the initial 1-second movie is followed by a 14-second movie fragment. The movie consists
22、of audio and video tracks. Fragment aware readers should play 15.3 seconds of content, fragment-unaware readers only 1 second. Amendment 37:2010 to CAN/CSA-ISO/IEC 14496-4-06ISO/IEC 14496-4:2004/Amd.37:2009(E) 2 ISO/IEC 2009 All rights reserved4.7.6.36 fragment-random-access-2.mp4 This uses movie fr
23、agment random access boxes as 1.4. There are random access points at 5-sec interval. For the purpose of reference, the initial 1-second movie is followed by a 10.1-second movie fragment. The movie consists of audio and video tracks. Fragment aware readers should play 15.1 seconds of content, fragmen
24、t-unaware readers only 5 seconds. 4.7.6.37 pdin_example.3gp This file contains one video track with AVC and a progressive download information box specifying required initial delays for six different download rates. The download rates 5 106, 7 659, 10 213, 12 766, 15 319 and 20 426 bytes per second
25、require initial delays of 20 808, 7 206, 1 089, 652, 396 and 200 seconds, respectively. 4.7.6.38 rs_example.3gp This file contains three video tracks with AVC at different bitrates, three audio tracks with HE-AACv2 at different bitrates, track selection box, and rate share information with two opera
26、tion points. For the first operation point (100 kilobits per second), the target rate shares are 20 % for audio and 80 % for video. For the second operation point (160 kilobits per second), the target rate share weights are 80 and 140 for audio and video, respectively. As the sum is not 100 for the
27、second case, the numbers correspond to weights that need to be normalized by the server/player. Depending on the available bitrate, the server selects which tracks to stream/play. Amendment 37:2010 to CAN/CSA-ISO/IEC 14496-4-06ISO/IEC 14496-4:2004/Amd.37:2009(E) ICS 35.040 ISO/IEC 2009 All rights re
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