ISO/IEC 23001-8:2016

FINAL
INTERNATIONAL ISO/IEC
DRAFT
STANDARD FDIS
23001-8
ISO/IEC JTC 1/SC 29
Information technology — MPEG
Secretariat: JISC
systems technologies —
Voting begins on:
2015-09-23
Part 8:
Voting terminates on:
Coding-independent code points
2015-11-23
Technologies de l’information — Technologies des systèmes MPEG —
Partie 8: Points de code indépendants du codage
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ISO/IEC FDIS 23001-8:2015(E)
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©
NATIONAL REGULATIONS. ISO/IEC 2015

ISO/IEC FDIS 23001-8:2015(E)
© ISO/IEC 2015, Published in Switzerland
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ii © ISO/IEC 2015 – All rights reserved

ISO/IEC FDIS 23001-8:2015(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms, definitions, and abbreviated terms . 1
3.1 Terms and definitions . 1
3.2 Abbreviated terms . 2
4 Conventions . 2
4.1 Arithmetic operators . 2
4.2 Relational operators . 3
4.3 Bit-wise operators. 3
4.4 Mathematical functions . 4
5 Introduction . 4
5.1 General . 4
5.2 Background . 5
5.3 Applicability . 6
6 Principles for definition and referencing of code points . 6
6.1 Code point encoding and defaults . 6
6.2 Externally defined values . 7
6.3 Reference format . 7
6.4 URN Format . 7
7 Video code points . 7
7.1 Colour primaries . 7
7.2 Transfer characteristics . 9
7.3 Matrix coefficients.11
7.4 Video frame packing type .16
7.5 Packed video content interpretation .20
7.6 Sample aspect ratio indicator .21
8 Audio code points .22
8.1 Loudspeaker index and speaker channel position .22
8.2 Loudspeaker layout index and channel configuration.25
8.3 Loudspeaker positioning.31
8.4 Program loudness level .35
8.5 Anchor loudness level .35
8.6 Range of loudness .35
8.7 Top of loudness range .35
8.8 Maximum of momentary loudness level .35
8.9 Maximum of short-term loudness level .36
8.10 Short-term loudness level .36
8.11 Peak level .36
8.12 Compressor characteristic .36
Bibliography .39
© ISO/IEC 2015 – All rights reserved iii

ISO/IEC FDIS 23001-8:2015(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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for
the different types of document should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
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. Details of any patent rights identified during the development of the document will be in the
Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/IEC JTC 1, Information technology, SC 29, Coding of
audio, picture, multimedia and hypermedia information.
This second edition cancels and replaces the first edition (ISO/IEC 23001-8:2013), which has been
technically revised.
It also incorporates the Amendment ISO/IEC 23001-8:2013/Amd 1:2015 and the Technical Corrigendum
ISO/IEC 23001-8:2013/Cor 1:2015.
ISO/IEC 23001 consists of the following parts, under the general title Information technology — MPEG
systems technologies:
— Part 1: Binary MPEG format for XML
— Part 2: Fragment request units
— Part 3: XML IPMP messages
— Part 4: Codec configuration representation
— Part 5: Bitstream Syntax Description Language (BSDL)
— Part 7: Common encryption in ISO base media file format files
— Part 8: Coding-independent code points
— Part 9 : Common encryption of MPEG-2 transport streams
— Part 10 : Carriage of timed metadata metrics of media in ISO base media file format
— Part 11 : Energy-efficient media consumption (green metadata)
iv © ISO/IEC 2015 – All rights reserved

FINAL DRAFT INTERNATIONAL STANDARD ISO/IEC FDIS 23001-8:2015(E)
Information technology — MPEG systems technologies —
Part 8:
Coding-independent code points
1 Scope
This part of ISO/IEC 23001 defines various code points and fields that establish properties of a video
or audio stream that are independent of the compression encoding and bit rate. These properties may
describe the appropriate interpretation of decoded video or audio data or may, similarly, describe
the characteristics of such signals before the signal is compressed by an encoder that is suitable for
compressing such an input signal.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 11664-1, Colorimetry — Part 1: CIE standard colorimetric observers
Rec. ITU-R BS.1770, Algorithms to measure audio programme loudness and true-peak audio level
Rec. ITU-R BS.1771-1, Requirements for loudness and true-peak indicating meters
EBU R 128, Loudness normalization and permitted maximum level of audio signals
EBU Tech 3341, Loudness Metering: EBU mode metering to supplement loudness normalization in
accordance with EBU R128
EBU Tech 3342, Loudness Range: A measure to supplement loudness normalisation in accordance with EBU
R 128
3 Terms, definitions, and abbreviated terms
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1.1
channel
Ch.
conceptual representation of an audio signal for coding or transmission as it may be used within the
digital signal processing chain of an audio codec
Note 1 to entry: A channel may correspond directly to one specific loudspeaker or it may carry an audio signal
that is meant to be further processed and played back on more than one loudspeake
...