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36、n from the SDO that publishes the standard.The responsibility for approving standards as NSCs rests withStandards Council of Canada270 Albert Street, Suite 200Ottawa, Ontario, K1P 6N7CanadaCette Norme Nationale du Canada nest disponible quen anglais. Le Groupe CSA publiera la version en franais ds q
37、uelle sera produite par lorganisme rdacteur.Although the intended primary application of this Standard is stated in its Scope, it is important to note that it remains the responsibility of the users to judge its suitability for their particular purpose.TMA trade-mark of the Canadian Standards Associ
38、ation, operating as “CSA Group”ICS 35.040ISBN 978-1-77139-509-0 2014 CSA GroupAll rights reserved. No part of this publication may be reproduced to any form whatsoever without the prior permission of the publisher.Published in March 2014 by CSA Group A not-for-profit private sector organization 5060
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40、nternational Organization for Standardization/International Electrotechnical CommissionApproved byInformation technology Coding of audio visual objects Part 12: ISO base media file format(ISO/IEC 14496-12:2012, IDT)CAN/CSA-ISO/IEC 14496-12:14National Standard of CanadaCAN/CSA-ISO/IEC 14496-12:14Info
41、rmation technology Coding of audiovisual objects Part 12: ISO base media file formatMarch 2014 2014 CSA GroupCSA/5CAN/CSA-ISO/IEC 14496-12:14Information technology Coding of audio visual objects Part 12: ISO base media file format(ISO/IEC 14496-12:2012, IDT)CSA PrefaceStandards development within th
42、e Information Technology sector is harmonized with international standards development. Through the CSA Technical Committee on Information Technology (TCIT), Canadians serve as the Canadian Advisory Committee (CAC) on ISO/IEC Joint Technical Committee 1 on Information Technology (ISO/IEC JTC1) for t
43、he Standards Council of Canada (SCC), the ISO member body for Canada and sponsor of the Canadian National Committee of the IEC. Also, as a member of the International Telecommunication Union (ITU), Canada participates in the International Telegraph and Telephone Consultative Committee (ITU-T).For br
44、evity, this Standard will be referred to as “CAN/CSA-ISO/IEC 1449612” throughout.This Standard supersedes CAN/CSA-ISO/IEC 144961209 (adoption of ISO/IEC 1449612:2008). At the time of publication, ISO/IEC 1449612:14 is available from ISO and IEC in English only. CSA Group will publish the French vers
45、ion when it becomes available from ISO and IEC.This International Standard was reviewed by the TCIT under the jurisdiction of the Strategic Steering Committee on Information Technology and deemed acceptable for use in Canada. From time to time, ISO/IEC may publish addenda, corrigenda, etc. The TCIT
46、will review these documents for approval and publication. For a listing, refer to the Current Standards Activities page at standardsactivities.csa.ca. This Standard has been formally approved, without modification, by the Technical Committee and has been approved as a National Standard of Canada by
47、the Standards Council of Canada. 2014 CSA GroupAll rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission of the publisher. ISO/IEC material is reprinted with permission. Where the words “this International Standard” appear in the text, the
48、y should be interpreted as “this National Standard of Canada”.Inquiries regarding this National Standard of Canada should be addressed to CSA Group5060 Spectrum Way, Suite 100, Mississauga, Ontario, Canada, L4W 5N61-800-463-6727 416-747-4000http:/csa.caTo purchase standards and related publications,
49、 visit our Online Store at shop.csa.caor call toll-free 1-800-463-6727 or 416-747-4044.CAN/CSA-ISO/IEC 14496-12:14Information technology Coding of audiovisual objects Part 12: ISO base media file formatMarch 2014 2014 CSA GroupCSA/6This Standard is subject to review five years from the date of publication, and suggestions for its improvement will be referred to the appropriate committee. To submit a proposal for change, please send the following information to inquiriescsagroup.organd include “Proposal for change” in
