1、 Copyright 2010 by THE SOCIETY OF MOTION PICTURE AND TELEVISION ENGINEERS 3 Barker Avenue, White Plains, NY 10601 (914) 761-1100 Approved August 9, 2010 Table of Contents Page Foreword . 2 Intellectual Property 2 1 Scope . 3 2 Conformance Notation . 3 3 Normative References . 3 4 SDI Image Data Form
2、at Constraints 4 5 Virtual Interface Data Format . 5 Annex A Progressive Segmented Frame System (Normative) 8 Annex B Bilbliography (Informative) . 9 Annex C Document Roadmap (Informative) 10 Page 1 of 10 pages SMPTE ST 428-19:2010 SMPTE STANDARD D-Cinema Distribution Master Additional Frame Rates L
3、evel AFR2 and Level AFR4 Serial Digital Interface Signal Formatting SMPTE ST 428-19:2010 Page 2 of 10 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
4、of America, SMPTE has members in over 80 countries on six continents. SMPTEs Engineering 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
5、 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 ST 428-19 was prepared by Technology Committee 21DC Intellectual P
6、roperty At the time of publication no notice had been received by SMPTE claiming patent rights essential to the implementation of this Standard. 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 resp
7、onsible for identifying any or all such patent rights. SMPTE ST 428-19:2010 Page 3 of 10 pages 1 Scope This standard defines the formatting and constraints of the DCDM SMPTE 428-11 AFR Level 2 and AFR Level 4 image Pixel Structure for transmission over the 1.485 Gb/s dual link serial digital interfa
8、ce SMPTE 372M or 3 Gb/s interface SMPTE 424M. The Serial Digital Interface (SDI) container parameters for DCDM AFR Level 2 and AFR Level 4 are given in Table 1. Table 1 SDI container pixel array AFR level System nomenclature X Y Z samples per active line (S/AL) Lines per container (AL/F) Frame rate
9、(Hz) Interface sampling frequency fs (MHz) X Y Z sample periods per total line (S/TL) Interface total lines per frame 2 2048 x 1080/25/P 2048 1080 25 74.25 2640 1125 4 2048 x 1080/30/P 2048 1080 30 74.25 2200 1125 2 Conformance Notation Normative text is text that describes elements of the design th
10、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
11、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
12、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 necess
13、arily 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 t
14、his 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“)
15、 and, if implemented, all recommended provisions (“should“) as described. A conformant implementation need not implement optional provisions (“may“) and need not implement them as described. 3 Normative References The following standards contain provisions which, through reference in this text, cons
16、titute 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 investigate the possibility of applying the most recent edition of the standards indicated belo
17、w. SMPTE ST 428-19:2010 Page 4 of 10 pages SMPTE 428-1 2006, D-Cinema Distribution Master (DCDM) Image Characteristics SMPTE 428-11-2009, Additional Frame Rates for D-Cinema 4 SDI Image Data Format Constraints 4.1 The serial digital container is a fixed container size with a 2048 x 1080 pixel array.
18、 See Figure 1. 4.2 Within the serial digital container not all pixels will form the image as defined by SMPTE 428-11. Pixels not forming the image shall be called padding pixels and have a value of 010h. 4.3 The center of the DCDM Image pixel array shall correspond to the center of the SDI container
19、. SDI ContainerImage Container centre, Active image centre2048 Horizontal Pixels1080 Vertical PixelsPixel number 0.0DCDM AFR Level 2 and AFR Level 4 pixel structure- (May fill the container)Padding Pixels- Set to 010hPadding Pixels- Set to 010hCenter of the container AND center of the imageFigure 1
20、Serial digital container 4.4 The DCDM AFR Level 2 and AFR Level 4 pixel image structure shall employ X, Y, Zcoding as defined in DCDM image pixel structure format, SMPTE 428-1. 4.5 X Y Z code values shall be contained within the range of FEFh O10h. Values that may exist in the source signal, beyond
21、these defined limits shall be clipped. 4.6 Code values FFOh FFFhand 000h 00Fhare prohibited in the payload. SMPTE ST 428-19:2010 Page 5 of 10 pages 5 Virtual Interface Data Format There shall be 3 data channels, X, Y, Z each with identical data structures. 5.1 The data format at the virtual interfac
22、e of each channel shall consist of synchronizing signals (EAV and SAV), the serial digital interface container, horizontal blanking and vertical blanking. See Figures 1 and 2. 5.2 The horizontal blanking area does not contain image pixels and shall be set to the padding pixel value of 010h. Figure 2
23、 Data Format Interface horizontal line Notes 1 Horizontal axis not to scale. 2 A line of SDI container extends from the first word of EAV through the last word of container data. 3 The number of samples of the SDI container data (sample number o through p in Figure 2) is 2048. That is, the letter o
24、denotes sample number 0 and the letter p denotes sample number 2047 in the SDI container. 4 The number of reference clock periods per second equals the interface sampling frequency Table 2 Values for SDI container array structure AFR level fps Sample numbering Durations in reference clock periods (T
25、) a b c d e k l m N o p A B C 2 25 2048 2049 2050 2051 2052 2636 2637 2638 2639 0 2047 2048 584 2640 4 30 2048 2049 2050 2051 2052 2196 2197 2198 2199 0 2047 2048 144 2200 5.3 SAV (start of active video) and EAV (end of active video) digital synchronizing sequences shall define synchronization acros
26、s the serial digital interface. Figures 1, 2 and 3 show the relationship of the SAV and EAV sequences to SDI container data. SDI CONTAINER DATA HORIZONTAL BLANKING CODEWORDS EAV SAV Sample Numbering Digital Data Stream Durations in Reference Clock Periods (T) duration in ref. clock periods 4T 4T (EA
27、V) A (2048T) klmn o pabcde pabcd C B . . SMPTE ST 428-19:2010 Page 6 of 10 pages 5.4 An SAV or EAV sequence shall comprise four consecutive code words: a code word of all ones, a code word of all zeros, another code word of all zeros, and a code word including F (frame), V (vertical), H (horizontal)
28、, P3, P2, P1, and P0 (parity) bits. An SAV sequence shall be identified by having H = 0; EAV shall have H = 1 (Tables 3 and 4 show details of the coding). 5.5 Interface line numbers: The interface shall have 1125 total number of lines, 1 thru 1125 inclusive. The vertical blanking area shall consist
29、of lines 1 though 41 inclusive and lines 1122 through 1125 inclusive. The vertical blanking area does not contain image pixels and shall be set to the padding pixel value of 010h. The SDI Image container shall be 1080 lines, starting at line 42 (top of container) through 1121 (bottom of the containe
30、r) inclusive. 5.6 In a progressive system, the EAV and SAV of all lines shall have F = 0; The EAV and the SAV of lines 1 through 41 inclusive and lines 1122 through 1125 inclusive shall have V = 1; The EAV and SAV of lines 42 through 1121 inclusive shall have V = 0. 5.7 In a PsF system: The EAV and
31、SAV of lines 1 through 563 inclusive shall have F = 0. The EAV and SAV of lines 564 through 1125 inclusive shall have F = 1; The EAV and SAV of lines 1 through 20, lines 561 through 583, and lines 1124 and 1125 shall have V = 1; The EAV and the SAV of lines 21 through 560 and lines 584 through 1123
32、shall have V = 0. Figure 3 Digital levels and timing X,Y,Z 010h(16) FEFh(4079) EAVSAVEAVa e k o Sample instants a e SMPTE ST 428-19:2010 Page 7 of 10 pages Table 3 Timing reference codes1Bit number 11 (MSB) 10 9 8 7 6 5 4 3 2 1 0 (LSB) Word Value 0 FFFh (4095) 1 1 1 1 1 1 1 1 1 1 1 1 1 000h (0) 0 0
33、0 0 0 0 0 0 0 0 0 0 2 000h (0) 0 0 0 0 0 0 0 0 0 0 0 0 3 1 F V H P3 P2 P1 P0 0 0 0 0 Table 4 Protection bits for SAV and EAV Bit number 11 10 9 8 7 6 5 4 3 2 1 0 Function 1 Fixed F V H P3 P2 P1 P0 0 Fixed 0 Fixed 0 Fixed 0 Fixed 0 1 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 1 1 0 1 0 0 0 0 2 1 0 1 0 1 0 1 1 0
34、 0 0 0 3 1 0 1 1 0 1 1 0 0 0 0 0 4 1 1 0 0 0 1 1 1 0 0 0 0 5 1 1 0 1 1 0 1 0 0 0 0 0 6 1 1 1 0 1 1 0 0 0 0 0 0 7 1 1 1 1 0 0 0 1 0 0 0 0 1Terminology used in Table 3 is consistent with terminology used for television signals SMPTE ST 428-19:2010 Page 8 of 10 pages Annex A Progressive Segmented Frame
35、 System (Normative) A.1 A Progressive segmented Frame system shall transmit a progressive image as if it were an interlaced Image. This provides a means of carrying a progressive image as two equally divided segments mapped onto an interlace interface. A.2 In a Progressive segmented Frame system, th
36、e assignment of lines within a progressive image shall be the same as that of an interlaced image. More specifically, the assignment of each even line of a progressive image shall correspond to lines 1 through 562 of a segmented frame system image, and each odd line of a progressive image shall corr
37、espond to lines 563 through 1125 of a segmented frame system image. The relationship of line N of a progressive system image and line M of a segmented frame system image shall be as shown by the following equation and as shown in Figure A.1. M = N/2 where N= 2, 4, 6,1124 M = (N+1125)/2 where N= 1, 3
38、, 5,1125 Figure A.1 Progressive segmented Frame system SMPTE ST 428-19:2010 Page 9 of 10 pages Annex B Bibliography (Informative) SMPTE 292-2008, 1.5 Gb/s Signal/Data Serial Interface SMPTE 372-2009, Dual Link 1.5 Gb/s Digital Interface for 1920 1080 and 2048 1080 Picture Formats SMPTE 424M-2006, Television 3 Gb/s Signal/Data Serial Interface SMPTE 425-2008, 3 Gb/s Signal/Data Serial Interface Source Image Format Mapping SMPTE ST 428-19:2010 Page 10 of 10 pages Annex C Document Roadmap (Informative)
