ISO/IEC 14496-4:2004/Amd 18:2007
(Amendment)Information technology — Coding of audio-visual objects — Part 4: Conformance testing — Amendment 18: Conformance of MPEG-1/2 Audio in MPEG-4
Information technology — Coding of audio-visual objects — Part 4: Conformance testing — Amendment 18: Conformance of MPEG-1/2 Audio in MPEG-4
Technologies de l'information — Codage des objets audiovisuels — Partie 4: Essai de conformité — Amendement 18: Conformité de MPEG-1/2 Audio dans MPEG-4
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INTERNATIONAL ISO/IEC
STANDARD 14496-4
Second edition
2004-12-15
AMENDMENT 18
2007-12-01
Information technology — Coding of
audio-visual objects —
Part 4:
Conformance testing
AMENDMENT 18: Conformance of
MPEG-1/2 Audio in MPEG-4
Technologies de l'information — Codage des objets audiovisuels —
Partie 4: Essai de conformité
AMENDEMENT 18: Conformité de MPEG-1/2 Audio dans MPEG-4
Reference number
ISO/IEC 14496-4:2004/Amd.18:2007(E)
©
ISO/IEC 2007
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ISO/IEC 14496-4:2004/Amd.18:2007(E)
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INTERNATIONAL ISO/IEC
STANDARD 14496-4
Second edition
2004-12-15
AMENDMENT 18
2007-12-01
Information technology — Coding of
audio-visual objects —
Part 4:
Conformance testing
AMENDMENT 18: Conformance of
MPEG-1/2 Audio in MPEG-4
Technologies de l'information — Codage des objets audiovisuels —
Partie 4: Essai de conformité
AMENDEMENT 18: Conformité de MPEG-1/2 Audio dans MPEG-4
Reference number
ISO/IEC 14496-4:2004/Amd.18:2007(E)
©
ISO/IEC 2007
---------------------- Page: 1 ----------------------
ISO/IEC 14496-4:2004/Amd.18:2007(E)
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but
shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In
the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.
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ii © ISO/IEC 2007 – All rights reserved
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ISO/IEC 14496-4:2004/Amd.18:2007(E)
Foreword
ISO (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 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 international 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 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 International 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 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 18 to ISO/IEC 14496-4:2004 was prepared by Joint Technical Committee ISO/IEC JTC 1,
Information technology, Subcommittee SC 29, Coding of audio, picture, multimedia and hypermedia
information.
© ISO/IEC 2007 – All rights reserved iii
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ISO/IEC 14496-4:2004/Amd.18:2007(E)
Information technology — Coding of audio-visual objects —
Part 4:
Conformance testing
AMENDMENT 18: Conformance of MPEG-1/2 Audio in MPEG-4
In subclause 6.5.1 File name conventions, insert the following row into Table 29 after the row for DST:
Layer-3 l3__ l3___
In subclause 6.6, add the following subclause:
6.6.21 Layer-3
6.6.21.1 Compressed data
6.6.21.1.1 Characteristics
Conformant Layer-3 compressed MPEG-4 data shall have the Layer-3 data stored as specified in
ISO/IEC 14496-3, subpart 9.
6.6.21.1.2 Test procedure
Each compressed data shall meet the syntactic and semantic requirements specified in ISO/IEC 14496-3. The
decoded data shall also meet the requirements defined in ISO/IEC 11172-3 and ISO/IEC 13818-3. If a
syntactic element is not listed below, no restrictions apply to that element. The reserved element
...
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