1、 ISO/IEC 2014. CSA Group 2015. All rights reserved. Unauthorized reproduction is strictly prohibited.Amendment 2:2015 (IDT) toCAN/CSA-ISO/IEC 14496-1:12(ISO/IEC 14496-1:2010, IDT)National Standard of CanadaAmendment 2:2015 (IDT) to CAN/CSA-ISO/IEC 14496-1:12Information technology Coding of audio-vis
2、ual objects Part 1: SystemsAMENDMENT 2: Support for raw audiovisual data(ISO/IEC 14496-1:2010, IDT)Standards Update ServiceAmendment 2:2015 (IDT) to CAN/CSA-ISO/IEC 14496-1:12December 2015Title: Information technology Coding of audio-visual objects Part 1: SystemsAMENDMENT 2: Support for raw audiovi
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4、Visit CSA Groups policy on privacy at www.csagroup.org/legal to find out how we protect yourpersonal information.Information technology Coding of audio-visual objects Part 1: SystemsAMENDMENT 2: Support for raw audio-visual dataTechnologies de linformation Codage des objets audiovisuels Partie 1: Sy
5、stmesAMENDEMENT 2: Prise en charge de donnes audiovisuelles brutes ISO/IEC 2014INTERNATIONAL STANDARDISO/IEC14496-1Fourth edition2010-06-01Reference numberISO/IEC 14496-1:2010/Amd.2:2014(E)AMENDMENT 22014-01-15ISO/IEC 14496-1:2010/Amd.2:2014(E)ii ISO/IEC 2014 All rights reservedCOPYRIGHT PROTECTED D
6、OCUMENT ISO/IEC 2014All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permiss
7、ion can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgAmendment 2:2015 (IDT) toCAN/CSA-ISO/IEC 14496-1:12ISO/I
8、EC 14496-1:2010/Amd.2:2014(E)ForewordISO (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 Internatio
9、nal 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 liaison with
10、 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 technical comm
11、ittee 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.Attention is drawn to th
12、e 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 2 to ISO/IEC 14496-1:2010 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, S
13、ubcommittee SC 29, Coding of audio, picture, multimedia and hypermedia information.This Amendment is to define the mechanisms for enabling the use of raw data (audio and video) an MPEG-4 scene. It consists in defining the ObjectTypeIndication, the DecoderSpecificInfo and the Access Unit for RawVideo
14、 and RawAudio. ISO/IEC 2014 All rights reserved iiiAmendment 2:2015 (IDT) to CAN/CSA-ISO/IEC 14496-1:12Information technology Coding of audio-visual objects Part 1: SystemsAMENDMENT 2: Support for raw audio-visual dataIn Table 1, replace line:0x6A-0xBF Reserved for ISO usewith lines:0x6A-0x92 Reserv
15、ed for Registration Authority0x93-0xBF Reserved for ISO useIn Table 2, replace line:0x09-0xBF Reserved for ISO (command tags)with lines:0x09-0x63 Reserved for Registration Authority0x64-0xBF Reserved for ISO (command tags)In Table 5, replace line:0x09-0x1F reserved for ISO usewith lines:0x09 LASeR s
16、tream (defined in ISO/IEC 14496-20:2008, clauses 6 and 12)0x0A SAF stream (defined in ISO/IEC 14496-20:2008, clause 7)0x0B Raw video stream 0x0C Raw audio stream 0x0D-0x1F reserved for ISO useIn Table 6, replace: 0x0C - 0x1F reserved for ISO useISO/IEC 14496-1:2010/Amd.2:2014(E) ISO/IEC 2014 All rig
17、hts reserved 1Amendment 2:2015 (IDT) to CAN/CSA-ISO/IEC 14496-1:12ISO/IEC 14496-1:2010/Amd.2:2014(E)with:0x0C Application Multiplex Stream0x0D - 0x5B reserved for Registration Authority0x5C - 0x1F reserved for ISO useIn 7.2.6.7.2, add the following new paragraph at the end of the subclause:For value
18、s of DecoderConfigDescriptor.objectTypeIndication that refer to streams complying with ISO/IEC 14496-20, the decoder specific information is a LASeRHeader() defined in 12.2.1 of ISO/IEC 14496-20:2008.RAW Video Decoder Specific Infoclass RAWVideoConfig extends DecoderSpecificInfo : bit(8) tag=DecSpec
19、ificInfoTag unsigned int(16) width; unsigned int(16) height; unsigned int(8) bit_depth; unsigned int(32) stride; unsigned int(32) coding4CC; unsigned int(8) fps; unsigned int(1) use_frame_packing; unsigned int(7) frame_packing; Semantics:width width of the video of the largest color componentheight
20、height of the video of the largest color componentbit_depth number of bits for each channel sample from the set of permitted values as defined by coding4CCstride size in bytes of one horizontal linecoding4CC a 4 character code representing the parameters of the raw data as speci-fied by the MPEG-4 R
21、egistration Authority (http:/www.mp4ra.org/)fps frames per second of the video stream; if 0 then the frame rate is not known or variableuse_frame_packing this indicates if a frame contains two or more viewsframe_packing framePacking as defined in ISO/IEC 23001-8, Coding Independent Code PointsNote F
22、or more than one view the data is packed in a single frame (it is assumed that all views are sampled at the same instant). The packaging is indicated by the frame_packing field.Example Note NV21 is just an example codingFOURCC value.RAW Audio Decoder Specific Infoclass RAWAudioConfig extends Decoder
23、SpecificInfo : bit(8) tag=DecSpecificInfoTag unsigned int(24) sampling_rate; unsigned int(16) bits_per_sample; unsigned int(8) channels; unsigned int(32) coding4CC; 2 ISO/IEC 2014 All rights reservedAmendment 2:2015 (IDT) to CAN/CSA-ISO/IEC 14496-1:12ISO/IEC 14496-1:2010/Amd.2:2014(E)unsigned int(8)
24、 channel_configuration; Semantics:Note For more than one channel the data is interleaved (it is assumed that all channels are sampled at the same instant). The ordering of audio channel data within an interleaved sample shall be the same as the order of the audio channel sequence given in the channe
25、l to speaker mapping defined by the channel_configuration. sampling_rate number of samples per second (in Hz)bits_per_sample number of bits for each channel of the audio sample, from the set of permitted values as defined by coding4CCcoding4CC a 4 character code representing the parameters of the ra
26、w data as specified by the MPEG-4 Registration Authority (http:/www.mp4ra.org/)channels number of audio channelschannel_configuration channelConfiguration as defined in ISO/IEC 23001-8, Coding Inde-pendent Code PointsExample Note RWAV is just an example coding4CC value.In Table 13, replace: 0x03 - 0
27、xFF reserved for ISO usewith:0x03 0x7B reserved for Registration Authority0x7C - 0xFF reserved for ISO use ISO/IEC 2014 All rights reserved 3Amendment 2:2015 (IDT) to CAN/CSA-ISO/IEC 14496-1:12ISO/IEC 14496-1:2010/Amd.2:2014(E)ICS 35.040 ISO/IEC 2014 All rights reservedCopyright NoticeThe Canadian a
28、doption of this Amendment to the International Standard contains information 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 permission.Requests for permission to reproduce this adopted Amendment or parts thereof should be addressed to:Manager, SalesCSA Group178 Rexdale BoulevardToronto, Ontario M9W 1R3Copyright violators will be prosecuted to the full extent of the law.
