1、 Reference numberISO/IEC 14496-2:2004(E)ISO/IEC 2004Information technology Coding of audio-visual objects Part 2: Visual Technologies de linformation Codage des objets audiovisuels Partie 2: Codage visuel National Standard of CanadaCAN/CSA-ISO/IEC 14496-2:05(ISO/IEC 14496-2:2004)International Standa
2、rd ISO/IEC 14496-2:2004 (third edition, 2004-06-01) has been adopted withoutmodification (IDT) as CSA Standard CAN/CSA-ISO/IEC 14496-2:05, which has been approved as a NationalStandard of Canada by the Standards Council of Canada.ISBN 1-55397-928-1 October 2005The Canadian Standards Association (CSA
3、), under whose auspices this National Standard has been produced, was chartered in 1919 and accredited by the Standards Council of Canada to the National Standards system in 1973. It is a not-for-profit, nonstatutory, voluntary membership association engaged in standards development and certificatio
4、n activities. CSA standards reflect a national consensus of producers and users including manufacturers, consumers, retailers, unions and professional organizations, and governmental agencies. The standards are used widely by industry and commerce and often adopted by municipal, provincial, and fede
5、ral governments in their regulations, particularly in the fields of health, safety, building and construction, and the environment. Individuals, companies, and associations across Canada indicate their support for CSAs standards development by volunteering their time and skills to CSA Committee work
6、 and supporting the Associations objectives through sustaining memberships. The more than 7000 committee volunteers and the 2000 sustaining memberships together form CSAs total membership from which its Directors are chosen. Sustaining memberships represent a major source of income for CSAs standard
7、s development activities. The Association offers certification and testing services in support of and as an extension to its standards development activities. To ensure the integrity of its certification process, the Association regularly and continually audits and inspects products that bear the CS
8、A Mark. In addition to its head office and laboratory complex in Toronto, CSA has regional branch offices in major centres across Canada and inspection and testing agencies in eight countries. Since 1919, the Association has developed the necessary expertise to meet its corporate mission: CSA is an
9、independent service organization whose mission is to provide an open and effective forum for activities facilitating the exchange of goods and services through the use of standards, certification and related services to meet national and international needs.For further information on CSA services, w
10、rite toCanadian Standards Association5060 Spectrum Way, Suite 100Mississauga, Ontario, L4W 5N6CanadaThe Standards Council of Canada is the coordinating body of the National Standards system, a federation of independent, autonomous organizations working towards the further development and improvement
11、 of voluntary standardization in the national interest. The principal objects of the Council are to foster and promote voluntary standardization as a means of advancing the national economy, benefiting the health, safety, and welfare of the public, assisting and protecting the consumer, facilitating
12、 domestic and international trade, and furthering international cooperation in the field of standards. A National Standard of Canada is a standard which has been approved by the Standards Council of Canada and one which reflects a reasonable agreement among the views of a number of capable individua
13、ls whose collective interests provide to the greatest practicable extent a balance of representation of producers, users, consumers, and others with relevant interests, as may be appropriate to the subject in hand. It normally is a standard which is capable of making a significant and timely contrib
14、ution to the national interest. Approval of a standard as a National Standard of Canada indicates that a standard conforms to the criteria and procedures established by the Standards Council of Canada. Approval does not refer to the technical content of the standard; this remains the continuing resp
15、onsibility of the accredited standards development organization. Those who have a need to apply standards are encouraged to use National Standards of Canada whenever practicable. These standards are subject to periodic review; therefore, users are cautioned to obtain the latest edition from the orga
16、nization preparing the standard.The responsibility for approving National Standards of Canada rests with theStandards Council of Canada270 Albert Street, Suite 200Ottawa, Ontario, K1P 6N7CanadaAlthough the intended primary application of this Standard is stated in its Scope, it is importantto note t
17、hat it remains the responsibility of the users to judge its suitability for their particular purpose.Registered trade-mark of Canadian Standards AssociationCette norme est offerte en anglais seulement pour le moment. La CSA publiera la version enfranais ds quelle sera produite par lorganisme rdacteu
18、r. ISO/IEC 2013. CSA Group 2015. All rights reserved. Unauthorized reproduction is strictly prohibited.Technical Corrigendum5:2015(IDT) toCAN/CSA-ISO/IEC 14496-2:05(ISO/IEC 14496-2:2004, IDT)National Standard of CanadaTechnical Corrigendum5:2015(IDT) to CAN/CSA-ISO/IEC 14496-2:05Informationtechnolog
19、y Coding of audio-visualobjects Part 2: Visual(ISO/IEC 14496-2:2004, IDT)Standards UpdateServiceTechnical Corrigendum 5:2015 (IDT) toCAN/CSA-ISO/IEC 14496-2:05January 2015Title: Information technology Coding of audio-visual objects Part 2: VisualTo register for e-mail notification about any updates
20、to this publication go to shop.csa.ca click on CSA Update ServiceThe List ID that you will need to register for updates to this publication is 2417497.If you require assistance, please e-mail techsupportcsagroup.org or call 416-747-2233.Visit CSA Groups policy on privacy at csagroup.org/legalto find
21、 out how we protect your personalinformation.INTERNATIONAL STANDARD ISO/IEC 14496-2:2004TECHNICAL CORRIGENDUM 5 Published 2013-11-15 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION ORGANISATION INTERNATIONALE DE NORMALISATIONINTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION LECTROTECHNIQUE INTERNA
22、TIONALEInformation technology Coding of audio-visual objects Part 2: Visual TECHNICAL CORRIGENDUM 5 Technologies de linformation Codage des objets audiovisuels Partie 2: Codage visuel RECTIFICATIF TECHNIQUE 5 Technical Corrigendum 5 to ISO/IEC 14496-2:2004 was prepared by Joint Technical Committee I
23、SO/IEC JTC 1, Information technology, Subcommittee SC 29, Coding of audio, picture, multimedia and hypermedia information. In 7.7.2.1, replace the following pseudo code: field_motion_compensate_one_reference( luma_pred, cb_pred, cr_pred, /* Prediction component pel array */ luma_ref, cb_ref, cr_ref,
24、 /* Reference VOP pel arrays */ mv_top_x, mv_top_y, /* top field motion vector */ mv_bot_x, mv_bot_y, /* bottom field motion vector */ top_field_ref, /* top field reference */ bottom_field_ref, /* bottom field reference */ x, y, /* current luma macroblock coords */ rounding_type) /* rounding type */
25、 ICS 35.040 Ref. No. ISO/IEC 14496-2:2004/Cor.5:2013(E) ISO/IEC 2013 All rights reserved ISO/IEC ISO/IEC 14496-2:2004/Cor.5:2013(E) 2 ISO/IEC 2013 All rights reserved mc(luma_pred, luma_ref, x, y, 16, 16, mv_top_x, mv_top_y, rounding_type, 0, top_field_ref, 2, “y”); mc(luma_pred, luma_ref, x, y, 16,
26、 16, mv_bot_x, mv_bot_y, rounding_type, 1, bottom_field_ref, 2, “y”); mc(cb_pred, cb_ref, x/2, y/2, 8, 8, Div2Round(mv_top_x), Div2Round(mv_top_y/2)*2, rounding_type, 0, top_field_ref, 2, “u”); mc(cr_pred, cr_ref, x/2, y/2, 8, 8, Div2Round(mv_top_x), Div2Round(mv_top_y/2)*2, rounding_type, 0, top_fi
27、eld_ref, 2, “u”); mc(cb_pred, cb_ref, x/2, y/2, 8, 8, Div2Round(mv_bot_x), Div2Round(mv_bot_y/2)*2, rounding_type, 1, bottom_field_ref, 2, “v”); mc(cr_pred, cr_ref, x/2, y/2, 8, 8, Div2Round(mv_bot_x), Div2Round(mv_bot_y/2)*2, rounding_type, 1, bottom_field_ref, 2, “v”); with: field_motion_compensat
28、e_one_reference( luma_pred, cb_pred, cr_pred, /* Prediction component pel array */ luma_ref, cb_ref, cr_ref, /* Reference VOP pel arrays */ mv_top_x, mv_top_y, /* top field motion vector */ mv_bot_x, mv_bot_y, /* bottom field motion vector */ top_field_ref, /* top field reference */ bottom_field_ref
29、, /* bottom field reference */ x, y, /* current luma macroblock coords */ rounding_type) /* rounding type */ mc(luma_pred, luma_ref, x, y, 16, 16, mv_top_x, mv_top_y, rounding_type, 0, top_field_ref, 2, “y”); mc(luma_pred, luma_ref, x, y, 16, 16, mv_bot_x, mv_bot_y, rounding_type, 1, bottom_field_re
30、f, 2, “y”); mc(cb_pred, cb_ref, x/2, y/2, 8, 8, Div2Round(mv_top_x), Div2Round(mv_top_y1)*2, rounding_type, 0, top_field_ref, 2, “u”); mc(cr_pred, cr_ref, x/2, y/2, 8, 8, Div2Round(mv_top_x), Div2Round(mv_top_y1)*2, rounding_type, 0, top_field_ref, 2, “u”); mc(cb_pred, cb_ref, x/2, y/2, 8, 8, Div2Ro
31、und(mv_bot_x), Div2Round(mv_bot_y1)*2, rounding_type, 1, bottom_field_ref, 2, “v”); mc(cr_pred, cr_ref, x/2, y/2, 8, 8, Div2Round(mv_bot_x), Div2Round(mv_bot_y1)*2, rounding_type, 1, bottom_field_ref, 2, “v”); Technical Corrigendum 5:2015 (IDT) to CAN/CSA-ISO/IEC 14496-2:05Copyright NoticeThe Canadi
32、an adopg415 on of this Amendment to the Internag415 onal Standard contains informag415 on copyright protected by CSA Group. All rights reserved. No part of this adopted Amendment may be reproduced in any form whatsoever without the prior permission of CSA Group. ISO/IEC material is reprinted with pe
33、rmission.Requests for permission to reproduce this adopted Amendment or parts thereof should be addressed to:Manager, SalesCSA Group5060 Spectrum Way, Suite 100Mississauga, Ontario L4W 5N6Copyright violators will be prosecuted to the full extent of the law.Information technology Coding of audio-visu
34、al objects Part2:VisualTECHNICAL CORRIGENDUM 4Technical Corrigendum 4:2012 (IDT) toNational Standard of CanadaCAN/CSA-ISO/IEC 14496-2:05(ISO/IEC 14496-2:2004, IDT)NOT FOR RESALE.PUBLICATION NON DESTINE LA REVENTE.Standards Update ServiceTechnical Corrigendum 4:2012 to CAN/CSA-ISO/IEC 14496-2:05March
35、 2012Title: Information technology Coding of audio-visual objects Part 2: VisualPagination: 10 pages To register for e-mail notification about any updates to this publicationgo to shop.csa.caclick on CSA Update ServiceThe List ID that you will need to register for updates to this publication is 2417
36、497.If you require assistance, please e-mail techsupportcsagroup.org or call 416-747-2233.Visit CSA Groups policy on privacy at csagroup.org/legal to find out how we protect your personal information.ICS 35.040.00 Ref. No. ISO/IEC 14496-2:2004/Cor.4:2010(E) ISO/IEC 2010 All rights reserved INTERNATI
37、ONAL STANDARD ISO/IEC 14496-2:2004 TECHNICAL CORRIGENDUM 4 Published 2010-09-01 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION ORGANISATION INTERNATIONALE DE NORMALISATIONINTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION LECTROTECHNIQUE INTERNATIONALEInformation technology Coding of audio-visual
38、objects Part 2: Visual TECHNICAL CORRIGENDUM 4 Technologies de linformation Codage des objets audiovisuels Partie 2: Codage visuel RECTIFICATIF TECHNIQUE 4 Technical Corrigendum 4 to ISO/IEC 14496-2:2004 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC
39、 29, Coding of audio, picture, multimedia and hypermedia information. Page 129, 6.2.13.9 Replace 6.2.13.9 with the following: 6.2.13.9 Studio Block The detailed syntax for the term “DCT coefficient” is fully described in Clause 7. StudioBlock( i ) No. of bits Mnemonic if ( pattern_codei ) if ( macro
40、block_intra ) if ( i 8) marker_bit 1 bslbf else dct_dc_size_chrominance 2-13 vlclbf if (dct_dc_size_chrominance != 0) dct_dc_differential 1-18 vlclbf if (dct_dc_size_chrominance 8) marker_bit 1 bslbf else First DCT coefficient 1-32 vlcfbf while ( next_bits() != End of block ) Subsequent DCT coeffici
41、ents 1-32 vlclbf End of block 1-16 vlcfbf Page 208, 6.3.13.2.9 Replace 6.3.13.2.9 with the following: 6.3.13.2.9 VLC code extension In order to prevent start code emulation in StudioMacroblock() or StudioBlock(), a set of VLC codes that does not cause start code emulation for any combination of synt
42、ax elements shall be encoded. load_vlc_code: This is a four bit integer indicating the presence of downloadable VLC codes for quantised AC coefficients. The value of load_intra_vlc_code and load_inter_vlc_code is derived from this code. Semantics are defined in the Table 6-80. Table 6-80 Meaning of
43、load_vlc_code load_vlc_code Meaning 0000 Forbidden 0001 load_intra_vlc_code = 1 load_inter_vlc_code = 0 0010 load_intra_vlc_code = 0 load_inter_vlc_code = 1 0011 load_intra_vlc_code = 1 load_inter_vlc_code = 1 0100 1111 Reserved If load_intra_vlc_code is set to 1, the VLC codes defined in Tables B.5
44、0 through B.61 shall be replaced with the codes indicated by intra_vlc_lengthji and intra_vlc_codeji. If it is set to 0, there is no change in Tables B.50 to B.61. If load_inter_vlc_code is set to 1, the VLC codes defined in Tables B.62 through B.73 shall be replaced with the codes indicated by inte
45、r_vlc_lengthji and inter_vlc_codeji. If it is set to 0, there is no change in Tables B.62 to B.73. intra_vlc_lengthji: This is a four bit unsigned integer indicating the length of the VLC code replacing the entry No. i in the Table No. j, with j=0 11 referring to the range of Tables B.50 through B.6
46、1. The actual length is intra_vlc_lengthji+1. The length of the VLC code of entry No. 21 in each table shall be limited to less than 14. Technical Corrigendum 4:2012 to CAN/CSA-ISO/IEC 14496-2:05ISO/IEC 14496-2:2004/Cor.4:2010(E) ISO/IEC 2010 All rights reserved 3intra_vlc_codeji: This is a 16 bit u
47、nsigned integer indicating the VLC code replacing the entry No. i in the Table No. j, with j=0 11 referring to the range of Tables B.50 through B.61. The most significant bits of the length indicated by intra_vlc_lengthji is the actual VLC code, and the remaining bits shall be filled with 1. inter_v
48、lc_lengthji: This is a four bit unsigned integer indicating the length of the VLC code replacing the entry No. i in the Table No. j, with j=0 11 referring to the range of Tables B.62 through B.73. The actual length is inter_vlc_lengthji+1. The length of the VLC code of entry No. 21 in each table shall be limited to less than 14. inter_vlc_codeji: This is a 16 bit unsigned integer indicating the VLC code replacing the entry No. i in the Table N
