SMPTE ST 428-11-2013 Additional Frame Rates for D-Cinema.pdf

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1、 Copyright 2137 by THE SOCIETY OF MOTION PICTURE AND TELEVISION ENGINEERS 595 W. Hartsdale Ave., White Plains, NY 10607 (914) 761-1100 Approved August 27, 2013 Table of Contents Page Foreword 2 Intellectual Property . 2 Introduction 2 1 Scope 3 2 Conformance Notation 3 3 Normative References 3 4 Glo

2、ssary 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 Page 1 of 6 pages SMPTE ST 428-11:2013 Revision of SMPTE 428-11-2009 SMPTE STANDARD Additional Frame Rates for D-Cinema SMPTE ST 42

3、8-11:2013 Page 2 of 6 pages 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. SMPTEs Eng

4、ineering Documents, including Standards, Recommended Practices and Engineering Guidelines, are prepared by SMPTEs 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, i

5、ncluding ISO, IEC and ITU. SMPTE Engineering Documents are drafted in accordance with the rules given in Part XIII of its Operations Manual. SMPTE ST 428-11 was prepared by Technology Committee 21DC. Intellectual Property At the time of publication no notice had been received by SMPTE claiming paten

6、t rights essential to the implementation of this Engineering Document. 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 s

7、ection is entirely informative and does not form an integral part of this Engineering Document. The frame rates initially standardized by the 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 f

8、ps 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

9、rates of 25 fps, 30 fps, 50 fps, 60 fps, 96 fps, 100 fps and 120 fps. SMPTE ST 428-11:2013 Page 3 of 6 pages 1 Scope This standard defines additional frame rates for D-Cinema that are in addition to the primary frame rates of 24 and 48 frames per second. These additional frame rates are defined to e

10、nsure that the artistic intent of the content producer can be maintained at the point of delivery. All other parameters defined by SMPTE ST 428-1 remain as specified. This document is part 11 of a suite of SMPTE engineering documents. This first part defines the additional frame rates individually a

11、t 25, 30, 50, 60, 96, 100 and 120 frames per second and defines the resulting audio samples per edit unit. Other parts will define further provisions to support the additional frame rates defined by this standard. 2 Conformance Notation Normative text is text that describes elements of the design th

12、at are indispensable or contains the conformance language keywords: “shall“, “should“, or “may“. Informative text is text that is potentially helpful to the user, but not indispensable, and can be removed, changed, or added editorially without affecting interoperability. Informative text does not co

13、ntain any conformance keywords. All text in this document is, by default, normative, except: the Introduction, any section explicitly labeled as “Informative“, or individual paragraphs that start with “Note:. The keywords “shall“ and “shall not“ indicate requirements strictly to be followed in order

14、 to conform to the document and from which no deviation is permitted. The keywords, “should“ and “should not“ indicate that, among several possibilities, one is recommended as particularly suitable, without mentioning or excluding others; or that a certain course of action is preferred but not neces

15、sarily required; or that (in the negative form) a certain possibility or course of action is deprecated but not prohibited. The keywords “may“ and “need not“ indicate courses of action permissible within the limits of the document. The keyword reserved indicates a provision that is not defined at th

16、is time, shall not be used, and may be defined in the future. The keyword forbidden indicates reserved and in addition indicates that the provision will never be defined in the future. A conformant implementation according to this document is one that includes all mandatory provisions (“shall“) and,

17、 if implemented, all recommended provisions (“should“) as described. A conformant implementation need not implement optional provisions (“may“) and need not implement them as described. Unless otherwise specified the order of precedence of the types of normative information in this document shall be

18、 as follows. Normative prose shall be the authoritative definition. Tables shall be next, followed by formal languages, then figures, and then any other language forms. 3 Normative References Note: All references in this document to other SMPTE documents use the current numbering style (e.g. SMPTE S

19、T 428-1:2006) although, during a transitional phase, the document as published (printed or SMPTE ST 428-11:2013 Page 4 of 6 pages PDF) may bear an older designation (such as SMPTE 428-1-2006). Documents with the same root number (e.g. 428-1) and publication year (e.g. 2006) are functionally identica

20、l. The following standards contain provisions which, through reference in this text, constitute provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to invest

21、igate the possibility of applying the most recent edition of the standards indicated below. SMPTE ST 428-1:2006, D-Cinema Distribution Master Image Characteristics SMPTE ST 428-2:2006, D-Cinema Distribution Master Audio Characteristics 4 Glossary of Acronyms and Terms The following acronyms are used

22、 in this document: AFR Additional Frame Rate. DCDM Digital Cinema Distribution Master. FPS (fps) Frames Per Second The following terms are used in this document: Edit Unit the smallest unit of D-Cinema content that can be successfully edited while maintaining the integrity of the content. The edit u

23、nit value must be an integer multiple of the duration of a single D-Cinema frame. In most cases, the edit unit value is the same as frame duration, but in certain applications, the value can be 1 (for example, stereoscopic D-Cinema requires an edit unit value twice that of the frame duration). Edit

24、Rate the rate of edit units per second. Primary - for the purposes of this document, primary frame rates are those frame rates defined in SMPTE ST 428.1. 5 Additional Frame Rate Values The primary D-Cinema frame rates and levels shall be as defined by SMPTE ST 428-1. The additional frame rate values

25、 for D-Cinema use shall be 25, 30, 50, 60, 96, 100 and 120 frames per second. All additional frame rates shall be integer values. 5.1. Definition of AFR levels The additional frame rates shall be defined in association with the picture size to form AFR levels as shown in Table 1. SMPTE ST 428-11:201

26、3 Page 5 of 6 pages Table 1 AFR Level Definitions AFR Level Maximum Horizontal Pixels Maximum Vertical Pixels Frames per Second AFR Level 1 4096 2160 25 AFR Level 2 2048 1080 25 AFR Level 3 4096 2160 30 AFR Level 4 2048 1080 30 AFR Level 5 2048 1080 50 AFR Level 6 2048 1080 60 AFR Level 7 2048 1080

27、96 AFR Level 8 2048 1080 100 AFR Level 9 2048 1080 120 These AFR levels are in addition to the primary DCDM levels that are defined in SMPTE ST 428-1. Implementations may support any one or more of the AFR levels defined in table 1. Implementations using this standard shall identify the values of AF

28、R level that are supported. Note: The AFR level names use the prefix AFR to avoid confusion with the level values defined in SMPTE ST 428-1. 5.2. D-Cinema Sound Sample Rates The audio sampling parameters shall be as defined in SMPTE ST 428-2. The additional frame rates result in values for the numbe

29、r of audio samples per edit unit as defined in Table 2. Table 2 Audio Samples per Edit Unit for the Additional Frame Rate Audio Sample Rate Edit Rate 48 kHz 96 kHz 25 1920 3840 30 1600 3200 50 960 1920 60 800 1600 96 500 1000 100 480 960 120 400 800 SMPTE ST 428-11:2013 Page 6 of 6 pages Annex A Bib

30、liography (Informative) Note: All references in this document to other SMPTE documents use the current numbering style (e.g. SMPTE ST 428-9:2008) although, during a transitional phase, the document as published (printed or PDF) may bear an older designation (such as SMPTE 428-9-2008). Documents with

31、 the same root number (e.g. 428-9) and publication year (e.g. 2008) are functionally identical. SMPTE ST 428-9:2008, D-Cinema Distribution Master Image Pixel Structure Level 3 Serial Digital Interface Signal Formatting SMPTE ST 428-10:2008, D-Cinema Distribution Master Closed Caption and Closed Subt

32、itle SMPTE ST 428-19:2010, D-Cinema Distribution Master Additional Frame Rates Level AFR2 and Level AFR4 Serial Digital Interface Signal Formatting SMPTE ST 429-2:2011, D-Cinema Packaging DCP Operational Constraints Amendment 1:2013 to SMPTE ST 429-2:2011 SMPTE ST 429-4:2006, D-Cinema Packaging MXF

33、JPEG 2000 Application SMPTE ST 429-10:2008, D-Cinema Packaging Stereoscopic Picture Track File SMPTE ST 429-13:2009, D-Cinema Packaging DCP Operational Constraints for Additional Frame Rates SMPTE DC28.0 Stereoscopic D-Cinema Study Group Report, 2005 SMPTE DC28 Study Group Report on Additional Frame Rates, July 2007 SMPTE 21DC Second Interim Study Group Report on High Frame Rates, November 2011