Information technology — Coding of audio-visual objects — Part 5: Reference software

Technologies de l'information — Codage des objets audiovisuels — Partie 5: Logiciel de référence

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Status
Withdrawn
Publication Date
12-Apr-2000
Withdrawal Date
12-Apr-2000
Current Stage
9599 - Withdrawal of International Standard
Completion Date
18-Apr-2002
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ISO/IEC 14496-5:2000 - Information technology -- Coding of audio-visual objects
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INTERNATIONAL ISO/IEC
STANDARD 14496-5
First edition
2000-04-01
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 14496-5:2000(E)
©
ISO/IEC 2000

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ISO/IEC 14496-5:2000(E)
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ii © ISO/IEC 2000 – All rights reserved

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ISO/IEC 14496-5:2000(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.3
Annex A (informative) Bitstream encoding software.4
Annex B (informative) Additional utility software.6
Annex C (informative) Providers of reference software.7
© ISO/IEC 2000 – All rights reserved iii

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ISO/IEC 14496-5:2000(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.
In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1.
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.
International Standard 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.
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)
Annexes A to C of this part of ISO/IEC 14496 are for information only.
iv © ISO/IEC 2000 – All rights reserved

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ISO/IEC 14496-5:2000(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 2000 – All rights reserved v

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INTERNATIONAL STANDARD ISO/IEC 14496-5:2000(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 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 softwar
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