ISO/IEC 23001-11:2015/Amd 2:2018

INTERNATIONAL ISO/IEC
STANDARD 23001-11
First edition
2015-07-15
AMENDMENT 2
2018-04
Information technology — MPEG
systems technologies —
Part 11:
Energy-efficient media consumption
(green metadata)
AMENDMENT 2: Conformance and
reference software
Technologies de l'information — Technologies des systèmes MPEG —
Partie 11: Consommation des supports éconergétiques
(métadonnées vertes)
AMENDEMENT 2: Conformité et logiciel de référence
Reference number
ISO/IEC 23001-11:2015/Amd.2:2018(E)
©
ISO/IEC 2018

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ISO/IEC 23001-11:2015/Amd.2:2018(E)

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ii © ISO/IEC 2018 – All rights reserved

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ISO/IEC 23001-11:2015/Amd.2:2018(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).
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For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
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World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: www .iso .org/iso/foreword .html.
This document was prepared by Technical Committee ISO/IEC JTC 1, Information technology, SC 29,
Coding of audio, picture, multimedia and hypermedia information.
A list of all parts in the ISO/IEC 23001 series can be found on the ISO website.
© ISO/IEC 2018 – All rights reserved iii

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ISO/IEC 23001-11:2015/Amd.2:2018(E)
Information technology — MPEG systems technologies —
Part 11:
Energy-efficient media consumption (green metadata)
AMENDMENT 2: Conformance and reference software
Normative references
Add the following references:
ISO/IEC 14496-5, Information technology — Coding of audio-visual objects — Part 5: Reference
software | Rec. ITU-T H.264.2, Reference software for ITU-T H.264 advanced video coding
ISO/IEC 23008-5, Information technology — High efficiency coding and media delivery in
heterogeneous environments — Part 5: Reference software for high efficiency video coding
Terms, definitions, symbols, abbreviated terms and conventions
Add the following abbreviated terms:
BMFF Base Media File Format
fps frame per second
Mbps megabits per second
Clause 8
At the end of Clause 8 add a new Clause 9:
9  Conformance and reference software
Conformance and reference software for green metadata shall be used as specified in Annex C.
© ISO/IEC 2018 – All rights reserved 1

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ISO/IEC 23001-11:2015/Amd.2:2018(E)

Annex C
Add a new normative annex after Annex B:
Annex C
(normative)
Conformance and reference software
C.1 Complexity metrics for decoder-power reduction
C.1.1 Conformance test vectors
The following two 4:2:0 8 bit per sample AVC conformance bitstreams with embedded Green Metadata
SEI message are available at http: //standards .iso .org/iso -iec/23001/ -11/ed -1/amd/2/en.
Name Resolution/ RAP period Bitrate Green Metadata Profile Expected value
Frame rate SEI period
(number of (Mbps)
(fps) frames) (number of
frames)
mobcal_480p50_AVC_HP.bin 704x480p@50 15 2.798 1 High mobcal_480p50_AVC_HP.txt
stockholm_720p5994_AVC_HP.bin 1280x720p@59.94 15 7.205 1 High stockholm_720p5994_AVC_
HP.txt
To verify conformance of a software implementation of Green Metadata SEI message parsing, the
conformance streams shall be used to check that extracted values match expected values given in the
side text files provided with the conformance streams.
C.1.2 Reference software
The reference decoder software as specified in ISO/IEC 14496-5 or Rec. ITU-T H.264.2 integrates a
Green Metadata SEI message parser, which extracts and displays SEI messages from conformance and
test bitstreams.
To enable the Green Metadata SEI message parser, the source code shall be compiled with the macro
#define PRINT_GREEN_METADATA_INFO.
To verify conformance of a test Green Metadata SEI message generated from a video in a test bitstream,
the reference software shall be used to extract the test SEI message from the test bitstream and then to
check the message for s
...