1、 Reference numberISO/IEC 14496-4:2004/Amd.7:2005(E)ISO/IEC 2005Information technology Coding of audio-visual objects Part 4: Conformance testing AMENDMENT 7: AFX conformance extensions Technologies de linformation Codage des objets audiovisuels Partie 4: Essai de conformit AMENDEMENT 7: Extensions d
2、e conformit AFX International Organization for Standardization (ISO), 2005. All rights reserved. International Electrotechnical Commission (IEC), 2005. All rights reserved. NOT FOR RESALE. Amendment 7:2006 toNational Standard of CanadaCAN/CSA-ISO/IEC 14496-4:06Amendment 7:2005 to International Stand
3、ard ISO/IEC 14496-4:2004 has been adopted withoutmodification (IDT) as Amendment 7:2006 to CAN/CSA-ISO/IEC 14496-4:06. This Amendment was reviewedby the CSA Technical Committee on Information Technology (TCIT) under the jurisdiction of the StrategicSteering Committee on Information Technology and de
4、emed acceptable for use in Canada.December 2006ISO/IEC 14496-4:2004/Amd.7:2005(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed t
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7、is found, please inform the Central Secretariat at the address given below. ISO/IEC 2005 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without per
8、mission in writing from either ISO at the address below or ISOs member body in the country of 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 2005 All rights reservedAmendment 7:2006
9、 to CAN/CSA-ISO/IEC 14496-4:06ISO/IEC 14496-4:2004/Amd.7:2005(E) ISO/IEC 2005 All rights reserved iiiForeword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies th
10、at are members of ISO 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. ISO and IEC technical committees collaborate in fields of mutual interest. Other intern
11、ational organizations, governmental and non-governmental, in liaison with 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 i
12、n 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 International Standard requires approval by a
13、t least 75 % of the national bodies casting a vote. Attention is drawn to the 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 7 to ISO/IEC 14496-4:2004 was p
14、repared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 29, Coding of audio, picture, multimedia and hypermedia information. Amendment 7:2006 to CAN/CSA-ISO/IEC 14496-4:06ISO/IEC 14496-4:2004/Amd.7:2005(E) ISO/IEC 2005 All rights reserved 1Information technology C
15、oding of audio-visual objects Part 4: Conformance testing AMENDMENT 7: AFX conformance extensions Add the following table at the end of Table 4 in subclause 4.4.3.1 and renumber the first column. N Feature Reference of Test sequence and associated method 1. SFVec4f Nurbs_curve_anim 2. CoordinateInte
16、rpolator4D Nurbs_curve_anim 3. PositionInterpolator4D Quadric_anim_st 4. extendedUpdate : PROTOlistInsertion proto_list_insertion_1, proto_list_insertion_2 5. extendedUpdate : PROTOlistDeletion proto_list_deletion_1, proto_list_deletion_2 6. extendedUpdate : PROTODeletion proto_deletion_1, proto_del
17、etion_2 7. extendedUpdate : MultipleFieldReplacement multiple_replacement_1, multiple_replacement_2 8. extendedUpdate : MultipleIndexedFieldReplacement multiple_indexed_replacement_1, multiple_indexed_replacement_2 9. extendedUpdate : GlobalQuantizationConfiguration global_quant_1, global_quant_2 10
18、. extendedUpdate : NodeDeletionEx node_deletion_ext_1, node_deletion_ext_2 Amendment 7:2006 to CAN/CSA-ISO/IEC 14496-4:06ISO/IEC 14496-4:2004/Amd.7:2005(E) 2 ISO/IEC 2005 All rights reservedAdd the following table at the end of Table 6 in subclause 4.4.3.3. Name Provider Content Quadric_anim_st SGDL
19、 / MINDEGO Algebraic shape of the 2nddegree, through Quadric node, defined by 6 geometric control point in the projective space (4D). Deformation of the shape by moving the control points.Nurbs_curve_anim Mindego A NURBS curve is animated by changing its control points over time. proto_list_insertio
20、n_1 ENST First sample of proto list insertion: simple proto_list_insertion_2 ENST Second sample of proto list insertion: complex proto_list_deletion_1 ENST First sample of proto list deletion: simple proto_list_deletion_2 ENST Second sample of proto list deletion: complex proto_deletion_1 ENST First
21、 sample of proto deletion: simple proto_deletion_2 ENST Second sample of proto deletion: complex multiple_replacement_1 ENST First sample of multiple replacement: simple multiple_replacement_2 ENST Second sample of multiple replacement: complex multiple_indexed_replacement_1 ENST First sample of mul
22、tiple indexed replacement: simple multiple_indexed_replacement_2 ENST Second sample of multiple indexed replacement: complex global_quant_1 ENST First sample of global quantization configuration: adding global quantization global_quant_2 ENST Second sample of global quantization configuration: remov
23、ing global quantization node_deletion_ext_1 ENST First sample of extended node deletion: simple node_deletion_ext_2 ENST Second sample of extended node deletion: complex Add the following subclause after 4.12.2. 4.13 Conformance on SL Extensions 4.13.1 Extended SL - Synchronization Layer Conformance
24、 4.13.1.1 Bitstream Conformance 4.13.1.1.1 Conformance Requirements SL-packetized bitstreams shall comply with the specifications in subclause 7.3.2 of ISO/IEC 14496-1:2004. 4.13.1.1.2 Measurement procedure Syntax of the SL Packets shall meet the requirements of subclause 7.3.2 of ISO/IEC 14496-1:20
25、04. 4.13.1.1.3 Tolerance There is no tolerance for bitstream syntax checking. The diagnosis is pass or fail. Amendment 7:2006 to CAN/CSA-ISO/IEC 14496-4:06ISO/IEC 14496-4:2004/Amd.7:2005(E) ISO/IEC 2005 All rights reserved 1Information technology Coding of audio-visual objects Part 4: Conformance te
26、sting AMENDMENT 7: AFX conformance extensions Add the following table at the end of Table 4 in subclause 4.4.3.1 and renumber the first column. N Feature Reference of Test sequence and associated method 1. SFVec4f Nurbs_curve_anim 2. CoordinateInterpolator4D Nurbs_curve_anim 3. PositionInterpolator4
27、D Quadric_anim_st 4. extendedUpdate : PROTOlistInsertion proto_list_insertion_1, proto_list_insertion_2 5. extendedUpdate : PROTOlistDeletion proto_list_deletion_1, proto_list_deletion_2 6. extendedUpdate : PROTODeletion proto_deletion_1, proto_deletion_2 7. extendedUpdate : MultipleFieldReplacement
28、 multiple_replacement_1, multiple_replacement_2 8. extendedUpdate : MultipleIndexedFieldReplacement multiple_indexed_replacement_1, multiple_indexed_replacement_2 9. extendedUpdate : GlobalQuantizationConfiguration global_quant_1, global_quant_2 10. extendedUpdate : NodeDeletionEx node_deletion_ext_
29、1, node_deletion_ext_2 Amendment 7:2006 to CAN/CSA-ISO/IEC 14496-4:06ISO/IEC 14496-4:2004/Amd.7:2005(E) 2 ISO/IEC 2005 All rights reservedAdd the following table at the end of Table 6 in subclause 4.4.3.3. Name Provider Content Quadric_anim_st SGDL / MINDEGO Algebraic shape of the 2nddegree, through
30、 Quadric node, defined by 6 geometric control point in the projective space (4D). Deformation of the shape by moving the control points.Nurbs_curve_anim Mindego A NURBS curve is animated by changing its control points over time. proto_list_insertion_1 ENST First sample of proto list insertion: simpl
31、e proto_list_insertion_2 ENST Second sample of proto list insertion: complex proto_list_deletion_1 ENST First sample of proto list deletion: simple proto_list_deletion_2 ENST Second sample of proto list deletion: complex proto_deletion_1 ENST First sample of proto deletion: simple proto_deletion_2 E
32、NST Second sample of proto deletion: complex multiple_replacement_1 ENST First sample of multiple replacement: simple multiple_replacement_2 ENST Second sample of multiple replacement: complex multiple_indexed_replacement_1 ENST First sample of multiple indexed replacement: simple multiple_indexed_r
33、eplacement_2 ENST Second sample of multiple indexed replacement: complex global_quant_1 ENST First sample of global quantization configuration: adding global quantization global_quant_2 ENST Second sample of global quantization configuration: removing global quantization node_deletion_ext_1 ENST Fir
34、st sample of extended node deletion: simple node_deletion_ext_2 ENST Second sample of extended node deletion: complex Add the following subclause after 4.12.2. 4.13 Conformance on SL Extensions 4.13.1 Extended SL - Synchronization Layer Conformance 4.13.1.1 Bitstream Conformance 4.13.1.1.1 Conforman
35、ce Requirements SL-packetized bitstreams shall comply with the specifications in subclause 7.3.2 of ISO/IEC 14496-1:2004. 4.13.1.1.2 Measurement procedure Syntax of the SL Packets shall meet the requirements of subclause 7.3.2 of ISO/IEC 14496-1:2004. 4.13.1.1.3 Tolerance There is no tolerance for b
36、itstream syntax checking. The diagnosis is pass or fail. Amendment 7:2006 to CAN/CSA-ISO/IEC 14496-4:06ISO/IEC 14496-4:2004/Amd.7:2005(E) ISO/IEC 2005 All rights reserved 5The FlexDemux shall recover the SL Packets in the appropriate Decoding Buffer bit-exact as presented to the multiplex, and this
37、for every Elementary Stream present in the M4Mux-ed stream under test. For each test the condition or conditions that must be satisfied are given, as well as the prerequisites or conditions in which the test can be applied. Note that the application of these tests requires parsing of the bitstream a
38、t the appropriate levels, which in some cases may go as far as the slice level for video. In some cases of scrambled data, descrambling is required before performing the test. Parsing and interpretation of the configuration of the M4Mux stream is also required. When a maximum bitrate is specified fo
39、r an Elementary Stream, see subclause 7.2.6.5 of ISO/IEC 14496-1:2004. Conformant bitstreams shall obey this constraint. 4.13.2.2.2 Measurement procedure 4.13.2.2.2.1 Test of the M4Mux packet header: A M4Mux stream is a succession of M4Mux packets. Each M4Mux packet is built from an index (the M4Mux
40、 Channel number) followed by the length of the M4Mux packet payload, followed by the M4Mux payload itself. The index is on one byte. The length field is on: One byte, If o there is no M4Mux ident descriptor, o or if the M4Mux Ident descriptor indicates the use of the first M4Mux tool (type=0). On on
41、e byte or on several bytes, If the M4Mux Ident descriptor indicates the use of the second M4Mux tool (type=1). Index- test if the index is smaller than 238, that it corresponds to one M4Mux Channel declared in the M4Mux Channel descriptor. length If the length is o non zero, this the Simple mode. Te
42、st if the length of the M4Mux packet, corresponds to the size of the M4Mux packet payload, i.e. if it addresses the beginning of the next M4Mux packet. In this Simple Mode this is equal to the length of the single encapsulated SL packet. o zero, test if it is followed by one byte, where the five mos
43、t significant bits are the FMC_version_number, and where the three least significant bits are equal to 1. Such M4Mux packets with a length equal to zero can be duplicated, with identical FMC_version_number values. If this FMC_version_number does not match the version of the referenced M4MuxChannelDe
44、scriptor that has most recently been received, the following M4Mux packets belonging to the same M4Mux Channel cannot be parsed. The test can either wait until the required FMC_version_number becomes available or discard the M4Mux packet. Is equal to 238, which indicates a M4Mux packet with possible
45、 fmxClockReference samples and fmxRate, the M4Mux stream bitrate. length Test if the first following field is an fmxClockReference sample, if the second following field is a fmxRate field, as they are defined in the M4Mux Timing descriptor. If the length is greater than the sum of the lengths of the
46、 fmxClockReference sample and of the fmxRate field defined in the M4Mux Timing descriptor, test if the remaining part of the M4Mux packet payload is composed of M4Mux decriptors (see the section about tests for M4Mux descriptors). Test if the length of the M4Mux packet, corresponds to the size of th
47、e M4Mux packet payload, i.e. if it addresses the beginning of the next M4Mux packet. fmxClockReference The sequence of fmxClockReference time stamps in a M4Mux stream constitutes a clock reference stream. In successive M4Mux packets of that clock reference stream, the fmxClockReference field contain
48、s encoded values which are samples of a system clock, the resolution of which is given by the FCRResolution field within the M4Mux Timing descriptor. The constraints on the accuracy of the successive fmxClockReference samples, allowing the reconstruction of the original system clock from the fmxCloc
49、kReference samples are defined by the application. Amendment 7:2006 to CAN/CSA-ISO/IEC 14496-4:06ISO/IEC 14496-4:2004/Amd.7:2005(E) 6 ISO/IEC 2005 All rights reservedfmxRate test that the value encoded in the fmxRate field is sufficiently large that, if all bytes between this M4Mux packet and the next M4Mux packet of the clock reference stream are transmitted at that rate, they are delivered to the System Decoder Model before the time the first byte of the next M4Mux packet is delivered. Is equal to 239, which i
