ISO/IEC 14496-4:2004
(Main)Information technology — Coding of audio-visual objects — Part 4: Conformance testing
Information technology — Coding of audio-visual objects — Part 4: Conformance testing
ISO/IEC 14496-4:2004 specifies how tests can be designed to verify whether bitstreams and decoders meet requirements specified in ISO/IEC 14496 (parts 1, 2 and 3) and for ISO/IEC 14496-6:2000. It specifies how tests can be designed for bitstream delivery over various delivery technologies in an interoperable transparent manner to ISO/IEC 14496 (parts 1, 2 and 3). Encoders are not addressed specifically. An encoder may be said to be an ISO/IEC 14496 encoder if it generates bitstreams compliant with the syntactic and semantic bitstream requirements specified in ISO/IEC 14496 (parts 1, 2 and 3). Procedures are described for testing conformance of bitstreams and decoders to the requirements defined in ISO/IEC 14496 (parts 1, 2 and 3). Given the set of characteristics claimed, the requirements that must be met are fully determined by ISO/IEC 14496 (parts 1, 2 and 3). ISO/IEC 14496-4:2004 summarizes the requirements, cross references them to characteristics and defines how conformance with them can be tested. Guidelines are given on constructing tests to verify bitstream and decoder conformance. ISO/IEC 14496-4:2004 gives guidelines on how to construct bitstream test suites to check or verify decoder conformance. In addition, some test bitstreams implemented according to those guidelines are provided as an electronic annex to ISO/IEC 14496-4:2004. These test bitstreams are documented in the various sections of ISO/IEC 14496-4:2004. The procedures and signaling messages for session and channel establishment are defined in ISO/IEC 14496-6:2000. Conformance with the signaling messages and procedures in ISO/IEC 14496-4:2004 are defined in accordance with the specifications in ISO/IEC 14496-6:2000. This specification allows the manufacturer to identify the conformance of the signaling message in a static review and provides abstract test cases to test the conformance to the procedures in a dynamic review of an implementation as defined in ISO/IEC 9646 (all parts), the Conformance Testing series of standards.
Technologies de l'information — Codage des objets audiovisuels — Partie 4: Essai de conformité
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INTERNATIONAL ISO/IEC
STANDARD 14496-4
Second edition
2004-12-15
Information technology — Coding of
audio-visual objects —
Part 4:
Conformance testing
Technologies de l'information — Codage des objets audiovisuels —
Partie 4: Essai de conformité
Reference number
©
ISO/IEC 2004
PDF disclaimer
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shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
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the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.
© ISO/IEC 2004
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
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ii © ISO/IEC 2004 – All rights reserved
Contents Page
Foreword. vii
Introduction . viii
1 Scope . 1
2 Normative references. 1
3 Terms and definitions. 2
4 Systems. 3
4.1 Conformance Points. 3
4.1.1 FlexMux Conformance Point . 4
4.1.2 Sync Layer Conformance Point. 4
4.1.3 OD Conformance Point. 4
4.1.4 BIFS Conformance Point. 4
4.1.5 OCI Conformance Point. 4
4.1.6 IPMP Conformance Point . 4
4.1.7 Scene Graph Conformance Point. 4
4.2 Bitstream Conformance . 4
4.2.1 FlexMux Conformance. 5
4.2.2 Synchronization Layer Conformance . 5
4.2.3 OD Conformance. 5
4.2.4 BIFS Conformance. 5
4.2.5 OCI Conformance. 5
4.2.6 IPMP Conformance . 6
4.2.7 Miscellaneous Conformance . 6
4.3 Terminal Conformance. 6
4.3.1 FlexMux conformance . 7
4.3.2 Synchronization Layer Conformance . 7
4.3.3 OD Conformance. 10
4.3.4 BIFS Conformance. 13
4.3.5 OCI Conformance. 14
4.3.6 IPMP Conformance . 14
4.3.7 Scene Graph Conformance. 14
4.3.8 Miscellaneous Conformance . 15
4.4 Test material and test suites. 15
4.4.1 Parsing Hint File Format. 16
4.4.2 Scene Dump File Format. 18
4.4.3 Test Suites . 20
© ISO/IEC 2004 – All rights reserved iii
4.5 Advanced BIFS .27
4.5.1 Bitstream conformance .27
4.5.2 Terminal conformance.27
4.6 MPEG-J.28
4.6.1 MPEG-J Conformance Points .28
4.6.2 Bitstream Conformance.29
4.6.3 Terminal Conformance .29
4.7 MP4 File Format.30
4.7.1 Writing .30
4.7.2 Reading .31
5 Visual.31
5.1 Introduction.31
5.2 Definition of visual bitstream compliance .32
5.2.1 Requirements and restrictions related to profile-and-level .32
5.2.2 Additional restrictions on bitstream applied by the encoder .32
5.2.3 Encoder requirements and recommendations.32
5.3 Procedure for testing bitstream compliance.33
5.4 Definition of visual decoder compliance .34
5.4.1 Requirement on arithmetic accuracy in video objects (without IDCT).34
5.4.2 Requirement on arithmetic accuracy in video objects (with IDCT).35
5.4.3 Requirement on arithmetic accuracy in scalable still texture object (without IDWT).35
5.4.4 Requirement on arithmetic accuracy in scalable still texture (with IDWT) .36
5.4.5 Requirement on output of the decoding process and timing.36
5.4.6 Recommendations .36
5.5 Procedure to test decoder compliance.36
5.5.1 Static tests .36
5.5.2 Dynamic tests .37
5.5.3 Specification of the test bitstreams.37
5.5.4 Implementation of the static test .51
5.5.5 Implementation of the dynamic test.52
5.5.6 Decoder conformance .52
5.5.7 Normative Test Suites for Simple, Simple Scalable, Core, Main and N-Bit profile.52
5.5.8 Bitstream Donated by MPEG-4 Platform Verification Bitstream Development Project .55
5.6 Additional Conformance Testing.63
5.6.1 Specification of the test bitstreams.63
5.6.2 Normative Test Suites for Advanced Real-Time Simple (ARTS), Core Scaleable, Advanced
Coding Efficiency (ACE), Advanced Core (AC) and Advanced Scaleable Texture profiles .78
6 Audio .84
6.1 Terms and Definitions.84
6.2 Introduction.84
iv © ISO/IEC 2004 – All rights reserved
6.3 Audio Conformance Points. 85
6.4 Audio Profiles. 86
6.5 Conformance data. 86
6.5.1 File name conventions . 86
6.5.2 Content. 88
6.6 Audio Object Types . 88
6.6.1 General. 88
6.6.2 Null. 94
6.6.3 AAC-based scalable configurations . 94
6.6.4 AAC (main, LC, ER LC, SSR, LTP, ER LTP, ER LD, scalable, ER scalable) . 95
6.6.5 TwinVQ and ER_TwinVQ. 112
6.6.6 ER BSAC . 115
6.6.7 CELP.
...
INTERNATIONAL ISO/IEC
STANDARD 14496-4
Second edition
2004-12-15
Information technology — Coding of
audio-visual objects —
Part 4:
Conformance testing
Technologies de l'information — Codage des objets audiovisuels —
Partie 4: Essai de conformité
Reference number
©
ISO/IEC 2004
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.
Disk 1 contains
a) the publication ISO/IEC 14496-4:2004 in portable document format (PDF), which can be viewed using
Adobe® Acrobat® Reader;
b) a number of Audio Conformance files (the remainder of the Audio Conformance files are on Disk 2), the
Systems Conformance files and the Video Conformance files.
Disk 2 contains the remainder of the Audio Conformance files.
This second edition cancels and replaces the first edition (ISO/IEC 14496-4:2000), which has been technically
revised.
Adobe and Acrobat are trademarks of Adobe Systems Incorporated.
© ISO/IEC 2004
All rights reserved. Unless otherwise specified, no part of these DVDs may be reproduced, stored in a retrieval system or transmitted in
any form or by any means without prior permission from
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