SMPTE ST 2081-10-2015 2160-Line and 1080-Line Source Image and Ancillary Data Mapping for Single-Link 6G-SDI.pdf

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1、 Copyright 2015 by THE SOCIETY OF MOTION PICTURE AND TELEVISION ENGINEERS 3 Barker Avenue, White Plains, NY 10601 (914) 761-1100 Approved February 4, 2015 Table of Contents Page Foreword . 2 Intellectual Property 2 Introduction 2 1 Scope . 4 2 Conformance Notation . 4 3 Normative References . 4 4 Mo

2、de 1: Carriage of 2160-Line Source Image Formats and Ancillary Data 5 4.1 Image Mapping (Informative) . 5 4.2 Audio Data 7 4.3 Payload Identifier Structure . 8 4.4 10-Bit Multiplex 11 4.5 Levels of Operation (Informative) . 11 5 Mode 2: Carriage of 1080-Line Source Image Formats and Ancillary Data 1

3、1 5.1 Image Mapping (Informative) . 13 5.2 Audio Data 15 5.3 Payload Identifier Structure . 16 5.4 10-Bit Multiplex 18 5.5 Levels of Operation (Informative) . 18 6 Single-Link 6G-SDI 10-Bit Multiplex . 18 Annex A Bibliography (Informative) . 21 Annex B Ancillary Data Capacity of the 6G-SDI Interface

4、 (Informative) 22 Page 1 of 22 pages SMPTE ST 2081-10:2015 SMPTE STANDARD 2160-Line and 1080-Line Source Image and Ancillary Data Mapping for Single-Link 6G-SDI SMPTE ST 2081-10:2015 Page 2 of 22 pages Foreword SMPTE (the Society of Motion Picture and Television Engineers) is an internationally-reco

5、gnized standards developing organization. Headquartered and incorporated in the United States 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

6、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 its Standards Operat

7、ions Manual. SMPTE ST 2081-10 was prepared by Technology Committee 32NF. Intellectual Property 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 elem

8、ents 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 SMPTE ST 2081-10 defines the mapping of various source images and associated ancillary data into a Single-link 6 Gb/s nominal SDI bit-serial inte

9、rface. The general process for creating a single-link 6G-SDI is illustrated below in Figure 1. Detailed definitions of how this process applies to each of the modes defined in the scope follow in other sections of this document. Parameter values included in tables or described in sections marked as

10、(Informative), are based on reference documents of the specific version indicated in the reference section and identified in applicable normative sections of this standard. S i n g l e 6 G - S D I 1 0 - b i t M u l t i p l e x2 1 6 0 - l i n e I m a g eD i v i s i o n t o S u b I m a g e sS o u r c

11、e I m a g e d a t aM a p p i n g o n t o 4 0 - b i t V i r t u a l I n t e r f a c e S u b I m a g e O n eS u b I m a g e T w oS u b I m a g e T h r e eS u b I m a g e F o u r6 G - S D I 1 0 - b i t i n t e r f a c e S T 2 0 8 1 - 1M u xD a t a S t r e a m T w oD a t a S t r e a m T h r e eD a t a S

12、 t r e a m F o u rD a t a S t r e a m O n eSMPTE ST 2081-10:2015 Page 3 of 22 pages Figure 1 Carriage of 2160-line images in a Single-link 6G-SDI interface Generalized process 6 G - S D I 1 0 - b i t i n t e r f a c e S T 2 0 8 1 - 1S i n g l e 6 G - S D I 1 0 - b i t M u l t i p l e x1 0 8 0 - l i

13、n e I m a g eM u xD i v i s i o n t o S u b I m a g e sS o u r c e I m a g e d a t aS u b I m a g e O n eD a t a S t r e a m T w oD a t a S t r e a m T h r e eD a t a S t r e a m F o u rM a p p i n g o n t o 4 0 - b i t V i r t u a l I n t e r f a c e S u b I m a g e T w oD a t a S t r e a m O n eFi

14、gure 2 Carriage of 1080-line images in a Single-link 6G-SDI interface Generalized process Formatting The source images are divided into two or four 1080-line sub images, depending on the format of the source image. The sub images are then mapped onto a 40-bit virtual interface consisting of four 10-

15、bit data streams. Each 10-bit data stream includes timing and sync words, line numbers, cyclic redundancy codes, ancillary data, including audio, and payload identification packets. Multiplex The 40-bit virtual interface is multiplexed onto a single 6G-SDI 10-bit interface in the order data stream f

16、our, data stream two, data stream three, data stream one. SMPTE ST 2081-10:2015 Page 4 of 22 pages 1 Scope This Standard defines the mapping of: Mode 1: 2160-line Source image formats identified in Table 1 into a Single-link 6 Gb/s nominal SDI bit-serial interface Mode 2: 1080-line Source image form

17、ats identified in Table 6 and into a Single-link 6 Gb/s nominal SDI bit-serial interface This Standard also defines the carriage of ancillary data, and the SMPTE ST 352 payload IDs for the Single-link 6 Gb/s SDI interface. It is not necessary for implementations to include support for all operating

18、modes or image formats that are included in this standard. Implementers should indicate supported operating modes and image formats in commercial publications. 2 Conformance Notation Normative text is text that describes elements of the design that are indispensable or contains the conformance langu

19、age 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 contain any conformance keywords. All text in this docum

20、ent 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 to conform to the document and from which no deviation

21、 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 necessarily required; or that (in the negative form) a certa

22、in 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 this time, shall not be used, and may be defined in the

23、 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, if implemented, all recommended provisions (“sho

24、uld“) 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 as follows: Normative prose shall be the author

25、itative definition; Tables shall be next; followed by formal languages; then figures; and then any other language forms. 3 Normative References The following standards contain provisions that, through reference in this text, constitute provisions of this standard. At the time of publication, the edi

26、tions 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 below. SMPTE ST 352:2013, Payload Identification Codes for Serial Digital I

27、nterfaces SMPTE ST 425-3:2014, Image Format and Ancillary Data Mapping for the Dual Link 3 Gb/s Serial Interface SMPTE ST 2081-10:2015 Page 5 of 22 pages 4 Mode 1: Carriage of 2160-Line Source Image Formats and Ancillary Data In the case of 2160-line mapping, the image formats supported are defined

28、in SMPTE ST 425-3, “Table 3 2160-line Source Image Formats”, repeated here for convenience in Table 1. Table 1 2160-line Source Image Formats (Informative) Reference SMPTE Standard Image Format Signal Format Sampling Structure/pixel Depth Frame Rate (Hz) ST 2036-1 3840 2160 4:2:2 (YCBCR)/10-bit 4:2:

29、0 (YCBCR)/10-bit 24/1.001, 24, 25, 30/1.001 and 30 Progressive ST 2048-1 4096 2160 4:2:2 (YCBCR)/10-bit 24/1.001, 24, 25, 30/1.001 and 30 Progressive The image shall be mapped onto a 40-bit virtual interface in accordance with SMPTE ST 425-3 “Mapping of 2160-line Source Image”. The 40-bit virtual in

30、terface shall include sync and timing (TRS) words, Cyclic redundancy code (CRC) words, line numbers, HANC and VANC data and time code except audio according to SMPTE ST 425-3 “Mapping of 2160-line Source Image”. Informative Annex B provides information about the amount of HANC and VANC data space av

31、ailable in this operating mode. 4.1 Image Mapping (Informative) Figure 3 illustrates the process for the carriage of SMPTE ST 2036-1 and SMPTE ST 2048-1 2160-line source image formats in a Single-link 6G-SDI interface. S i n g l e 6 G - S D I 1 0 - b i t M u l t i p l e x003 8 3 9 /4 0 9 52 1 5 91 2

32、1 2 1 21 23 43 4 3 43 41 21 2 1 21 23 43 4 3 43 41 21 2 1 21 23 43 4 3 43 4S T 4 2 5 - 3 4 0 - b i t V i r t u a l I n t e r f a c e M a p p i n g2 s a m p l e i n t e r l e a v e S u b -d i v i s i o nS o u r c e I m a g e1 9 2 0 /2 0 4 801 9 1 9 /2 0 4 711 1 2 21 1 2 54 2D a t a S t r e a m O n eD

33、 a t a S t r e a m T w oD a t a S t r e a m T h r e eD a t a S t r e a m F o u r6 G - S D I 1 0 - b i t i n t e r f a c e S T 2 0 8 1 - 1 , S T 2 0 8 1 - 2M u xEAVSAVH A N CD a t aS u b I m a g e 1EAVSAVH A N CD a t aS u b I m a g e 2EAVSAVH A N CD a t aS u b I m a g e 3EAVSAVH A N CD a t aS u b I m

34、 a g e 4Figure 3 Carriage of 2160-line source image formats in a single-link 6G-SDI interface SMPTE ST 2081-10:2015 Page 6 of 22 pages 4.1.1 Image sub-division (Informative) The 2160-line source image is divided into four 1080-line sub images in accordance with the 2 sample interleave sub-division m

35、ethod referenced in SMPTE ST 425-3 2160-line Mapping. For 4:2:0 source images, the 10-bit CB and CR samples in sub images 3 and 4 are set to the value 200h. Each 1080-line sub image conforms to the sub image format defined in “Table 14 Sub Image Formats for 2160-line Source Image” of SMPTE ST 425-3

36、repeated here for convenience in Table 2. Table 2 1080-line Sub Image Formats for 2160-line Source Images (Informative) Reference SMPTE Standard Image Format Signal Format Sampling Structure/Pixel Depth Frame Rate (Hz) ST 274 1920 1080 4:2:2 (YCBCR)/10-bit 24/1.001, 24, 25, 30/1.001 and 30 Progressi

37、ve ST 2048-2 2048 1080 4:2:2 (YCBCR)/10-bit 24/1.001, 24, 25, 30/1.001 and 30 Progressive Each sub image is then mapped into one of four data streams each of which complies with the 1.5 Gb/s data stream defined in SMPTE ST 292-1. Sub image 1 is mapped into data stream one. Sub image 2 is mapped into

38、 data streams two. Sub image 3 is mapped into data stream three. Sub image 4 is mapped into data stream four. Each data stream includes sync and timing (TRS) words, Cyclic redundancy code (CRC) words, line numbers, HANC and VANC data including audio and time code as defined in SMPTE ST 425-3 2160-li

39、ne Mapping. The four 10-bit data streams are then combined onto a 40-bit virtual interface. 4.1.2 2160-line 40-bit Virtual Interface Mapping (Informative) The video data words from each sub image are conveyed in the following order in the data streams of the 40-bit virtual interface: Sub image 1 is

40、mapped into data stream one: data stream one: CB0, Y0, CR0, Y1, CB2, Y4, CR2, Y5 from even lines as per Figure 3 Sub image 2 is mapped into data stream two: data stream two: CB1, Y2, CR1, Y3, CB3, Y6, CR3, Y7 from even lines as per Figure 3 Sub image 3 is mapped into data stream three: data stream t

41、hree: CB0, Y0, CR0, Y1, CB2, Y4, CR2, Y5 from odd lines as per Figure 3 Sub image 4 is mapped into data stream four: data stream four: CB1, Y2, CR1, Y3, CB3, Y6, CR3, Y7 from odd lines as per Figure 3 For 4:2:0 source images, the 10-bit CB and CR samples in sub images 3 and 4 are set to the value 20

42、0h. SMPTE ST 2081-10:2015 Page 7 of 22 pages 4.1.2.1 6G-SDI Link Multiplex Structure (Informative) Following the 6G-SDI 10-bit multiplex according to Section 6, the 6G-SDI data stream is conveyed in the following order: 6G-SDI data stream: CB1Odd, CB1, CB0Odd, CB0, Y2Odd, Y2, Y0Odd, Y0, CR1Odd, CR1,

43、 CR0Odd, CR0, Y3Odd, Y3, Y1Odd, Y1, CB3Odd, CB3, CB2Odd, CB2, Y6Odd, Y6, Y4Odd, Y4, CR3Odd, CR3, CR2Odd, CR2, Y7Odd, Y7, Y5Odd, Y5 Note: The term “Odd” in subscript above indicates that the samples are derived from the odd numbered lines of the original source image. 4.2 Audio Data When present, aud

44、io data shall be mapped into the HANC space of data streams one, two, three and four as defined in SMPTE ST 425-3 “Mapping of 2160-line Source Image Audio Data”. 4.2.1 Number of Audio Channels The number of audio channels shall be as defined in SMPTE ST 425-3 “Mapping of 2160-line Source Image Numbe

45、r of Audio Channels”. 4.2.2 Audio Copy As an alternative to the mapping of the maximum number of unique audio channels described above, blocks of audio channels may be copied within the interface. This may be as a result of the single-link 6G-SDI signal being created by combining dual-link 3G-SDI si

46、gnals. It may alternatively be done in the original single-link 6G-SDI signal in order to permit simple splitting of the single-link 6G-SDI signal into a dual-link 3G-SDI signal. Note: Audio copy reduces the number of channels that can be transported by the interface. In the case where the audio dat

47、a has been embedded according to SMPTE ST 425-3, for example when the audio was embedded in a dual-link 3G interface that has been combined into a single-link 6G interface, the audio in data stream pair three/four may be a copy of the audio in data stream pair one/two. The audio copy status of each

48、data stream shall be signaled in the PID as described in Section 4.3. Figure 4 shows a dual-link 3G interface combined into a single 6G-SDI interface, and the possible status of audio copy on each data stream. SMPTE ST 2081-10:2015 Page 8 of 22 pages D a t a S t r e a m T h r e eM 1 : 3 r d 1 6 c h

49、. A u d i o C n t r l a n d D a t a p a c k e t sM 2 : 2 n d 3 2 c h A u d i o C n t r l p a c k e t so r c o p y o f d a t a s t r e a m o n eD a t a S t r e a m F o u rM 1 : 4 t h 1 6 c h . A u d i o C n t r l a n d D a t a p a c k e t sM 2 : 2 n d 3 2 c h A u d i o D a t a p a c k e t so r c o p y o f d a t a s t r e a m t w oD a t a S t r e a m O n eM 1 : 1 s t 1 6 c h . A u d i o C n t r l a n d D a t a p a c k e t sM 2 : 1 s t