Digital cinema (D-cinema) distribution master — Part 11: Additional frame rates

ISO 24628-11:2011 defines additional frame rates for digital cinema of 25, 30, 50 and 60 frames per second. These additional frame rates supplement the primary frame rates of 24 and 48 frames per second and are defined in order to ensure that the artistic intent of the content producer can be maintained at the point of delivery. ISO 24628-11:2011 defines the image characteristics of the additional frame rates individually at 25, 30, 50 and 60 frames per second, and also defines the resulting audio samples per edit unit.

Souche de la distribution du cinéma numérique (cinéma D) — Partie 11: Cadences de prise de vue supplémentaire

General Information

Status
Published
Publication Date
06-Dec-2011
Technical Committee
Drafting Committee
Current Stage
9093 - International Standard confirmed
Start Date
08-Mar-2017
Completion Date
22-Jun-2022
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INTERNATIONAL ISO
STANDARD 26428-11
First edition
2011-12-15
Digital cinema (D-cinema) distribution
master —
Part 11:
Additional frame rates
Souche de la distribution du cinéma numérique (cinéma D) —
Partie 11: Cadences de prise de vue supplémentaire
Reference number
ISO 26428-11:2011(E)
ISO 2011
---------------------- Page: 1 ----------------------
ISO 26428-11:2011(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2011

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 in the country of the requester.
ISO copyright office
Case postale 56  CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
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Published in Switzerland
ii © ISO 2011 – All rights reserved
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ISO 26428-11:2011(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies

(ISO member bodies). The work of preparing International Standards is normally carried out through ISO

technical committees. Each member body interested in a subject for which a technical committee has been

established has the right to be represented on that committee. International organizations, governmental and

non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the

International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.

The main task of technical committees is to prepare International Standards. Draft International Standards

adopted by the technical committees are circulated to the member bodies for voting. Publication as an

International Standard requires approval by at least 75 % of the member bodies casting a vote.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent

rights. ISO shall not be held responsible for identifying any or all such patent rights.

ISO 26428-11 was prepared by the Society of Motion Picture and Television Engineers (as

SMPTE 428-11-2009) and was adopted, under a special “fast-track procedure”, by Technical Committee

ISO/TC 36, Cinematography, in parallel with its approval by the ISO member bodies.

ISO 26428 consists of the following parts, under the general title Digital cinema (D-cinema) distribution

master:
 Part 1: Image characteristics [equivalent to SMPTE 428-1]
 Part 2: Audio characteristics [equivalent to SMPTE 428-2]
 Part 3: Audio channel mapping and channel labeling [equivalent to SMPTE 428-3]
 Part 7: Subtitle [equivalent to SMPTE 428-7]

 Part 9: Image pixel structure level 3 — Serial digital interface signal formatting [equivalent to

SMPTE 428-9]
 Part 11: Additional frame rates [equivalent to SMPTE 428-11]

 Part 19: Serial digital interface signal formatting for additional frame rates level AFR2 and level AFR4

[equivalent to SMPTE 428-19]
© ISO 2011 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 26428-11:2011(E)
Introduction

This part of ISO 26428 comprises SMPTE 428-11-2009 and Annex ZZ (which provides equivalences between

ISO standards and SMPTE standards referenced in the text).
iv © ISO 2011 – All rights reserved
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ISO 26428-11:2011(E)
SMPTE 428-11-2009
SMPTE STANDARD
Additional Frame Rates
for D-Cinema
Page 1 of 6 pages
Table of Contents Page

Foreword ................................................................................................................................................. 2

Intellectual Property ................................................................................................................................ 2

Introduction ............................................................................................................................................. 2

1 Scope ................................................................................................................................................. 3

2 Conformance Notation ....................................................................................................................... 3

3 Normative References ....................................................................................................................... 3

4 Glossary of Acronyms and Terms...................................................................................................... 4

5 Additional Frame Rate Values ........................................................................................................... 4

5.1 Definition of AFR Levels ............................................................................................................ 4

5.2 D-Cinema Sound Sample Rates................................................................................................ 5

Annex A Bibliography (Informative) ..................................................................................................... 6

Copyright © 2009 by THE SOCIETY OF
Approved
MOTION PICTURE AND TELEVISION ENGINEERS
April 15, 2009
3 Barker Avenue, White Plains, NY 10601
(914) 761-1100
© ISO 2011 – All rights reserved
---------------------- Page: 5 ----------------------
ISO 26428-11:2011(E)
SMPTE 428-11-2009
Foreword

SMPTE (the Society of Motion Picture and Television Engineers) is an internationally-recognized standards

developing organization. Headquartered and incorporated in the United States of America, SMPTE has

members in over 80 countries on six continents. SMPTE’s Engineering Documents, including Standards,

Recommended Practices and Engineering Guidelines, are prepared by SMPTE’s Technology Committees.

Participation in these Committees is open to all with a bona fide interest in their work. SMPTE cooperates

closely with other standards-developing organizations, including ISO, IEC and ITU.

SMPTE Engineering Documents are drafted in accordance with the rules given in Part XIII of its

Administrative Practices.
SMPTE Standard 428-11 was prepared by Technology Committee 21DC.
Intellectual Property

At the time of publication no notice had been received by SMPTE claiming patent rights essential to the

implementation of this [Standard/Recommended Practice]. However, attention is drawn to the possibility that

some of the elements of this document may be the subject of patent rights. SMPTE shall not be held

responsible for identifying any or all such patent rights.
Introduction

This section is entirely informative and does not form an integral part of this Engineering Document.

The frame rates currently standardized by the DC28 D-Cinema Technology Committee are 24 and 48 frames

per second (fps).

The history of film making is littered with other frame rates ranging from less than 16 fps to 60 fps and beyond

and there is considerable support for the making of films using readily available equipment made specifically

for the film production market.

This standard defines how implementations that conform to the D-Cinema specifications can be extended to

support the additional frame rates of 25 fps, 30 fps, 50 fps and 60 fps.
Page 2 of 6 pages
© ISO 2011 – All rights reserved
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ISO 26428-11:2011(E)
SMPTE 428-11-2009
1 Scope
...

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