1、INTERNATIONAL STANDARD ISO/IEC 14496-2 Second edition 2001 -1 2-01 AMENDMENT 3 2003-05-1 5 Information technology - Coding of audio-visual objects - Part 2: Visual AMENDMENT 3: New levels and tools for MPEG-4 visual Technologies de linformation - Codage des objets audiovisuels - Partie 2: Codage vis
2、uel AMENDEMENT 3: Nouveaux niveaux et outils pour codage visuel MPEG-4 Adopted by INCITS (InterNational Committee for Information Technology Standards) as an American National Standard. Date of ANSI Approval: 12/24/2003 Published by American National Standards Institute, 25 West 43rd Street, New Yor
3、k, New York 10036 Copyright 2003 by Information Technology Industry Council (ITI). All rights reserved. These materials are subject to copyright claims of International Standardization Organization (ISO), International Eledrotechnical Commission (IEC), American National Standards Institute (ANSI), a
4、nd Information Technology Industry Council (ITI). Not for resale. No part of this publication may be reproduced in any form, including an electronic retrieval system, without the prior written permission of ITI. All requests pertaining to this standard should be submitted to ITI, 1250 Eye Street NW,
5、 Washington, DC 20005. Printed in the United States of America Reference number ISOIIEC 14496-2:2001/Amd.3:2003(E) O ISOIIEC 2003 ISO/IEC 14496-2:2001/Amd.3:2003(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or vi
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10、yrightiso.org Web www.iso.org Published in Switzerland ii O ISOIIEC 2003 -All rights reserved ISO/I EC 14496-2 :2001 /Amd.3: 2003( E) Foreword IS0 (the International Organization for Standardization) and I EC (the International Electrotechnical Commission) form the specialized system for worldwide s
11、tandardization. National bodies that are members of IS0 or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activity. IS0 and IEC technical committees collaborate in field
12、s of mutual interest. Other international organizations, governmental and non-governmental, in liaison with IS0 and IEC, also take part in the work. In the field of information technology, IS0 and IEC have established a joint technical committee, ISO/IEC JTC 1. International Standards are drafted in
13、 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 adopted by the joint technical committee are circulated to national bodies for voting. Publication as an Internation
14、al 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 Amendment may be the subject of patent rights. IS0 and IEC shall not be held responsible for identifying any or all such patent rights. Amendm
15、ent 3 to International Standard ISO/IEC 14496-2:2001 was prepared by Joint Technical Committee ISO/IEC JTC 1, information technology, Subcommittee SC 29, Coding of audio, picture, multimedia and hypermedia informa tion. O ISOIIEC 2003 -All rights reserved iii ISO/IEC 14496-2:2001/Amd.3:2003(E) Intro
16、duction With the advent of new multimedia streaming applications, there are requests from industry parties to add new levels to existing visual profiles in order to establish interoperability points for these applications. Adding alpha channel support to VTC is also included in this amendment. iv O
17、ISOIIEC 2003 -All rights reserved ISO/I EC 14496-2 :2001 /Amd.3: 2003( E) Simple Scalable Information technology - Coding of audio-visual objects - 1 spatial or tem poral layer 1 x Simple or Scalable LO QCIF 1 Simple 1 446 124 1856 N.A. 10 10 2048 N.A. N.A. 128 enhancement Part 2: Visual AS AMENDMEN
18、T 3: New levels and tools for MPEG-4 visual 4x AS or L3b 352x288 4 Simple 1 1188 396 11880 100 65 65 4096 1500 N.A. Add the following row to the Table N-I in Annex N: and the following text after item 10 (the note for Simple Profile Level LO) in the notes of Annex N: 11. For Simple Scalable Profile
19、Level LO, the following restrictions apply: a) Base layer compliant to Simple Profile Level LO; b) The enhancement layer maximum f-code shall be 1; c) The enhancement layer intra-dc-vlc-threshold shall be O; d) For enhancement layer, if AC prediction is used, the following restriction applies: QP va
20、lue shall not be changed within a VOP (or within a video packet if video packets are used in a VOP). If AC prediction is not used, there are no restrictions to changing QP value; e) Spatial scalability shall be limited to a 1:l scaling ratio. Add the following row to the Table AMD2-15: Add the follo
21、wing two rows in Table G-I in AMD2: I Simde Scalable Profile/Level O I 00010000 I Advanced Simple Profile/Level 3b 11110111 O ISOIIEC 2003 -All rights reserved 1 ISO/IEC 14496-2:2001/Amd.3:2003(E) Reserved Reserved Change the following two rows in Table G-7 in AMD2 from: 00001001- 00001 11 1 11 1101
22、 10 Reserved I 00001 O01 - O001 O000 I O0 o1 I Reserved I11110110- 11110111 I rectangular binarv to 10 11 reserved reserved Addition of alpha channel to VTC: o1 10 In subclause 6.3.8, change from binary reserved Table 6-33: Texture Object Layer Shape type. 1 15 1 15 1 15 1 I texture-object-layer-sha
23、pe I Meaning I bslbf uimsbf bslbf uimsbf bslbf uimsbf bslbf to Table 6-33: Texture Object Layer Shape type. I texture-object-layer-shape I Meaning I I O0 I rectanauiar I 11 I grayscaie In subclause 6.2.8 - Still Texture Object, change from I Else if (texme-object-layer-shape = “O i”) I I I I Horizon
24、tal-ref I 15 I uimsbf I Marker-bit Vertical-ref Marker-bit Object-width Marker-bit Object-height Marker-bit 2 O ISO/IEC 2003 -All rights reserved ISO/I EC 14496-2 :2001 /Amd.3: 2003( E) to I Else if (texme-object-layer-shape = “01” or “1 i”) I horizontal-ref I marker-bit I vertical-ref I marker-bit
25、I object-width I marker-bit I object-height marker-bit from 15 I uimsbf 1 I bslbf 15 I uimsbf 1 I bslbf 15 I uimsbf 1 I bslbf 15 I uimsbf 1 I bslbf else /* !texme-error-resilience-disable */ I 7) I I 1 if (color =“y“) max-bitplanes 5 uimbsf max-bitplanes 5 uimbsf else if (!first-wavelet-layer) for (
26、coloT=“y“,“u“,“vll) if (coloT=“y“ I I !firswavelet-layer) arith decode highbands bb0 to TextureSpatialLayerSQNSC() No. of bits I Mnemonic for (coloT=“y“,“u“,“v“,yayy) if ( (first-wavelet-layer i 7) for (i=O; i 7) for (i=O; i 7) for (i=O; i if(allnonzerocolor=1 I I allzerocolor=0) if (scandirection =
27、 O) Else aritl-decode-highbands-bilevel-bb() aritl-decode-highbands-bilevel-td() Add the following to Annex H: Annex H.5 Patent statements for ISO/IEC 14496-2:2001/AMD3 The table summarises the formal patent statements received and indicates the parts of ISO/IEC 14496- 2:2001/AMD3 to which the state
28、ment applies (V: visual tools in this amendment, R: ISO/IEC 14496-52001). The list includes all organisations that have submitted informal patent statements. However, if no “X“ is present, no formal patent statement has yet been received from that organisation. I I I“ IR I I 1. I Packetvideo III 10 O ISO/IEC 2003 -All rights reserved ISO/IEC 14496-2:2001/Amd.3:2003(E) ICs 35.040 Price based on 1 O pages O ISOIIEC 2003 -All rights reserved
