ISO/IEC 14496-5:2001
(Main)Information technology — Coding of audio-visual objects — Part 5: Reference software
Information technology — Coding of audio-visual objects — Part 5: Reference software
Reference software is normative in the sense that any conforming implementation of the software, taking the same conformant bitstreams, using the same output file format, will output the same file. Complying ISO/IEC 14496 implementations are not expected to follow the algorithms or the programming techniques used by the reference software. Although the decoding software is considered normative, it cannot add anything to the textual technical description included in parts 1, 2, 3 and 6 of ISO/IEC 14496. The software contained in this part of ISO/IEC 14496 is divided into three categories: a) Elementary stream decoding software is catalogued in clauses 3, 4 and 5. This software accepts elementary streams encoded according to the normative specification in parts 1, 2, 3 and 6 of ISO/IEC 14496 and decodes the streams into the media types associated with each elementary stream. While this software appears in the normative part of this specification, attention is drawn to the fact that the implementation techniques used in this software are not considered normative ? several different implementations could produce the same result ? but the software is considered normative in that it correctly implements the decoding processes described in parts 1, 2, 3 and 6 of ISO/IEC 14496. b) Elementary stream encoding software is catalogued in Annex A (informative). This software creates elementary streams from associated media types. The encoders are provided as a means to obtain elementary streams with the normative syntax described in parts 1, 2 and 3 of ISO/IEC 14496. The techniques used for encoding are not specified by this specification, and the quality and complexity of these encoders has not been optimized. c) Utility software is catalogued in Annex B (informative). This software was found useful by the developers of the standard, but may not conform to the normative specifications given in parts 1, 2, 3 and 6 of ISO/IEC 14496. File locations given in this part of ISO/IEC 14496 are expressed relative to its location in the source tree.
Technologies de l'information — Codage des objets audiovisuels — Partie 5: Logiciel de référence
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INTERNATIONAL ISO/IEC
STANDARD 14496-5
Second edition
2001-12-15
Information technology — Coding of
audio-visual objects —
Part 5:
Reference software
Technologies de l'information — Codage des objets audiovisuels —
Partie 5: Logiciel de référence
Reference number
ISO/IEC 14496-5:2001(E)
©
ISO/IEC 2001
---------------------- Page: 1 ----------------------
ISO/IEC 14496-5:2001(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.
© ISO/IEC 2001
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 permission in writing from either ISO at the address below or ISO's member body
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Published by ISO in 2002
Printed in Switzerland
ii © ISO/IEC 2001 – All rights reserved
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ISO/IEC 14496-5:2001(E)
Contents Page
Foreword.iv
Introduction.v
1 Scope.1
2 Copyright disclaimer for software modules .1
3 Audio reference software.2
4 Visual reference software .2
5 Systems reference software.2
Annex A (informative) Bitstream encoding software .3
A.1 Audio encoding software.3
A.2 Visual encoding software.3
A.3 Systems encoding software .3
Annex B (informative) Additional utility software.4
B.1 Audio utility software .4
B.2 Visual utility software.4
B.3 Systems utility software.4
Annex C (informative) Providers of reference software.5
© ISO/IEC 2001 – All rights reserved iii
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ISO/IEC 14496-5:2001(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 3.
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 part of ISO/IEC 14496 may be the subject of
patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights.
ISO/IEC 14496-5 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology,
Subcommittee SC 29, Coding of audio, picture, multimedia and hypermedia information.
This second edition cancels and replaces the first edition (ISO/IEC 14496-5:2000), which has been technically
revised.
ISO/IEC 14496 consists of the following parts, under the general title Information technology — Coding of audio-
visual objects:
Part 1: Systems
Part 2: Visual
Part 3: Audio
Part 4: Conformance testing
Part 5: Reference software
Part 6: Delivery Multimedia Integration Framework (DMIF)
Part 7: Optimized software for MPEG-4 visual tools
Annexes A, B and C of this part of ISO/IEC 14496 are for information only.
iv © ISO/IEC 2001 – All rights reserved
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ISO/IEC 14496-5:2001(E)
Introduction
This part of ISO/IEC 14496 contains simulation software for tools defined in parts 1, 2, 3 and 6 of ISO/IEC 14496.
This software has been derived from verification models used in the process of developing the standard. Due to the
delay between acceptance of a tool and its availability in source code form, the source for some tools described in
other parts of ISO/IEC 14496 may not be present.
Where bitstream encoding software is provided, attention is called to the fact that these encoders are provided for
the purpose of creating bitstreams with normative syntax. The performance of these encoders should not be taken
as indicative of that which can be obtained from implementations where quality and computational optimization are
given priority. The techniques used for encoding are not specified by this specification.
© ISO/IEC 2001 – All rights reserved v
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INTERNATIONAL STANDARD ISO/IEC 14496-5:2001(E)
Information technology — Coding of audio-visual objects —
Part 5:
Reference software
1 Scope
Reference software is normative in the sense that any conforming implementation of the software, taking the same
conformant bitstreams, using the same output file format, will output the same file. Complying ISO/IEC 14496
implementations are not expected to follow the algorithms or the programming techniques used by the reference
software. Although the decoding software is considered normative, it cannot add anything to the textual technical
description include
...
INTERNATIONAL ISO/IEC
STANDARD 14496-5
Second edition
2001-12-15
Information technology — Coding of
audio-visual objects —
Part 5:
Reference software
Technologies de l'information — Codage des objets audiovisuels —
Partie 5: Logiciel de référence
Reference number
ISO/IEC 14496-5-:2001(E)
©
ISO/IEC 2001
---------------------- Page: 1 ----------------------
ISO/IEC 14496-5:2001(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.
This CD-ROM contains:
1) the publication ISO/IEC 14496-5 in portable document format (PDF), which can be viewed using Adobe®
Acrobat® Reader;
2) simulation software for tools defined in parts 1, 2, 3 and 6 of ISO/IEC 14496.
Adobe and Acrobat are trademarks of Adobe Systems Incorporated.
This second edition cancels and replaces the first edition (ISO/IEC
...
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