1、 Approved August 9, 2017 Copyright 2017 by THE SOCIETY OF MOTION PICTURE AND TELEVISION ENGINEERS 445 Hamilton Avenue., White Plains, NY 10601 (914) 761-1100 SMPTE ST 2081-30:2017 SMPTE STANDARD Transport of Multiple 3Gb/s or 1.5Gb/s signals on a 6G-SDI link Page 1 of 8 pages Table of Contents Intro
2、duction 2 1 Scope 2 2 Conformance Notation 2 3 Normative References 3 4 Mode 1 Carriage of two SMPTE ST 425-1 3G-SDI signals on a single 6G-SDI link 3 4.1 2 x SMPTE ST 425-1 (3G-SDI) Dual-Stream Mapping 3 4.2 Payload Identifier 4 4.3 Multiplex 4 5 Mode 2 Carriage of four SMPTE ST 292-1 1.5G-SDI sign
3、als on a single 6G-SDI link 5 5.1 4 x SMPTE ST 292-1 (HD-SDI) Quad-Stream Mapping 5 5.2 Payload Identifier 5 5.3 Multiplex 6 6 6G-SDI 10-bit Multiplex 6 Bibliography (Informative) 8 Foreword SMPTE (the Society of Motion Picture and Television Engineers) is an internationally-recognized standards dev
4、eloping 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 Committees. Particip
5、ation 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 Operations Manual. This SM
6、PTE Engineering Document was prepared by Technology Committee 32NF SMPTE ST 2081-30:2017 Page 2 of 8 pages Intellectual Property At the time of publication no notice had been received by SMPTE claiming patent rights essential to the implementation of this Engineering Document. However, attention is
7、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 Documen
8、t. SMPTE ST 2081-30 defines the transport of two 3G-SDI signals or four 1.5G-SDI (HD-SDI) signals on a Single-link 6 Gb/s nominal SDI bit-serial interface. Combination The signals are combined to form a 40-bit virtual interface at 148.5 (x1/1.001) MHz Multiplex The 40-bit virtual interface is multip
9、lexed onto a single 6G-SDI 10-bit interface in the order data stream four, data stream two, data stream three, data stream one. 1 Scope This Standard defines the combination of four HD-SDI signals or two 3G-SDI signals into a 6G-SDI interface. MODE 1: Carriage of two SMPTE ST 425-1 3G-SDI signals on
10、 a 6G-SDI 10-bit interface as defined in section 6 Single-link 6G-SDI 10-bit Multiplex MODE 2: Carriage of four SMPTE ST 292-1 HD-SDI signals on a 6G-SDI 10-bit interface as defined in section 6 Single-link 6G-SDI 10-bit Multiplex 2 Conformance Notation Normative text is text that describes elements
11、 of the design that 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
12、 text does not contain 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:” SMPTE ST 2081-30:2017 Page 3 of 8 pages The keywords “shall“ and “shall not
13、“ indicate requirements strictly to be followed in order 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 th
14、at a certain course of action is preferred but not necessarily 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
15、“reserved” indicates a provision that is not defined at this 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 documen
16、t is one that includes all mandatory provisions (“shall“) 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. Unless otherwise specified, the order of precedence
17、of the types of normative information in this document shall be as follows: Normative prose shall be the authoritative definition; Tables shall be next; then formal languages; then figures; and then any other language forms. 3 Normative References The following standards contain provisions which, th
18、rough reference in this text, constitute provisions of this engineering document. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this engineering document are encouraged to investigate the possibility of applyi
19、ng the most recent edition of the standards indicated below. SMPTE ST 292-1:2012, 1.5 Gb/s Signal/Data Serial Interface SMPTE ST 352:2013, Payload Identification Codes For Serial Digital Interfaces SMPTE ST 425-1:2014, Source Image Format and Ancillary Data Mapping for the 3 Gb/s Serial Interface SM
20、PTE ST 2081-10:2015, 2160-line and 1080-line Source Image and Ancillary Data Mapping for single-link 6G-SDI 4 Mode 1 Carriage of two SMPTE ST 425-1 3G-SDI signals on a single 6G-SDI link 4.1 2 x SMPTE ST 425-1 (3G-SDI) Dual-Stream Mapping Two parallel 20-bit interfaces of the same line and frame str
21、ucture, having frame, line and word synchronization and each constructed of two 10-bit data streams, data stream one and data stream two, in SMPTE ST 2081-30:2017 Page 4 of 8 pages conformance with SMPTE ST 425-1 Level A, shall be mapped into a 40-bit Virtual Interface consisting of four data stream
22、s data stream one, data stream two, data stream three and data stream four. Data stream one of the 40-bit virtual interface shall consist of data stream one of the first 20-bit interface. Data stream two of the 40-bit virtual interface shall consist of data stream two of the first 20-bit interface.
23、Data stream three of the 40-bit virtual interface shall consist of data stream one of the second 20-bit interface. Data stream four of the 40-bit virtual interface shall consist of data stream two of the second 20-bit interface. The 10-bit data streams so constructed shall contain timing reference c
24、ode words (SAV/EAV), line numbers and line based CRCs as defined in SMPTE ST 425-1. Each 10-bit data stream shall have an interface frequency of 148.5 MHz or 148.5/1.001 MHz. 4.2 Payload Identifier The payload identifier shall be mapped into the horizontal ancillary data space of each data stream an
25、d shall be in conformance with SMPTE ST 352. The Placement of the packet shall be as defined in SMPTE ST 425-1 “Level A Direct Mapping of Source Image Formats” Byte 1 of the payload identifier shall be set in accordance with Table 1. Bytes 2 through 4 of the payload identifier shall be set in accord
26、ance with the picture rate, sampling structure, dynamic range and bit-depth, etc., of the image format being carried on the interface as defined in SMPTE ST 425-1 “Level A Direct Mapping of Source Image Formats”. Table 1 Video Payload and Digital Interface Identification for dual stream mapping of 2
27、 x 3G-SDI Mapped on the 6 Gb/s Serial Digital Interface Mapping Nomenclature Byte 1: Video Payload and Digital Interface 2 x (SMPTE ST 425-1) 1080-line video payloads on a 6 Gb/s serial digital interface C3h 2 x (SMPTE ST 425-1) 720-line video payloads on a 6 Gb/s serial digital interface CBh 4.3 Mu
28、ltiplex The 40-bit virtual interface shall then be multiplexed onto a 6G-SDI 10-bit interface according to section 6. SMPTE ST 2081-30:2017 Page 5 of 8 pages 5 Mode 2 Carriage of four SMPTE ST 292-1 1.5G-SDI signals on a single 6G-SDI link 5.1 4 x SMPTE ST 292-1 (HD-SDI) Quad-Stream Mapping Four par
29、allel 10-bit interleaved data streams of the same line and frame structure, having frame, line and word synchronization and each constructed in conformance with SMPTE ST 292-1, shall be mapped into a 40-bit Virtual Interface consisting of four data streams data stream one, data stream two, data stre
30、am three and data stream four. Data stream one of the 40-bit virtual interface shall consist of the first 10-bit interface. Data stream two of the 40-bit virtual interface shall consist of the second 10-bit interface. Data stream three of the 40-bit virtual interface shall consist of the third 10-bi
31、t interface. Data stream four of the 40-bit virtual interface shall consist of the fourth 10-bit interface. The 10-bit data streams so constructed shall contain timing reference code words (SAV/EAV), line numbers and line based CRCs as defined in SMPTE ST 292-1. Each 10-bit data stream shall have an
32、 interface frequency of 148.5 MHz or 148.5/1.001 MHz. 5.2 Payload Identifier The payload identifier shall be mapped into the horizontal ancillary data space of each data stream and shall be in conformance with SMPTE ST 352. The placement of the packet shall be as defined in SMPTE ST 292-1. Byte 1 of
33、 the payload identifier shall be set in accordance with Table 2. Bytes 2 through 4 of the payload identifier shall be set in accordance with the picture rate, sampling structure, dynamic range and bit-depth, etc., of the image format being carried on the interface as defined in SMPTE ST 292-1. Table
34、 2 Video Payload and Digital Interface Identification for quad stream mapping of 4 x HD SDI Mapped on the 6 Gb/s Serial Digital Interface Mapping Nomenclature Byte 1: Video Payload and Digital Interface 4 x (SMPTE ST 292-1) 1080-line video payloads on a 6 Gb/s serial digital interface CCh 4 x (SMPTE
35、 ST 292-1) 720-line video payloads on a 6 Gb/s serial digital interface CDh SMPTE ST 2081-30:2017 Page 6 of 8 pages 5.3 Multiplex The 40-bit virtual interface shall then be multiplexed onto a 6G-SDI 10-bit interface according to section 6. 6 Single-link 6G-SDI 10-bit Multiplex Prior to serialization
36、 data streams one through four of the 40-bit virtual interface shall be multiplexed word-by-word into a 6G-SDI 10-bit interface. The 10-bit interface shall be constructed in accordance with the 6G-SDI 10-bit multiplex as defined in SMPTE ST 2081-10, and shall consist of a word multiplex of data stre
37、ams one through four, in the order data stream four, data stream two, data stream three, data stream oneetc. The 10-bit parallel interface so produced shall have an interface frequency of 594 MHz or 594/1.001MHz as shown in the illustrative examples of Figure 1 and Figure 2. This 10-bit interface is
38、 then serialized according to SMPTE ST 2081-1 to create the 6G-SDI serial interface. 6 G - S D I 1 0 - b i t m u l t i p l e x D a t a S t r e a m o n e1 4 8 . 5 M H z o r 1 4 8 . 5 / 1 . 0 0 1 M H zD a t a S t r e a m t w o 1 4 8 . 5 M H z o r 1 4 8 . 5 / 1 . 0 0 1 M H zD a t a S t r e a m t h r e
39、e 1 4 8 . 5 M H z o r 1 4 8 . 5 / 1 . 0 0 1 M H zD a t a S t r e a m f o u r 1 4 8 . 5 M H z o r 1 4 8 . 5 / 1 . 0 0 1 M H z4 0 - b i t V i r t u a l I n t e r f a c eEAV3FFEAV000EAV000LN1CRC0CRC1EAVXYZB l a n k i n g C o d e W o r d s o r O p t i o n a l A n c i l l a r y D a t aSAV3FFSAV000SAV000S
40、AVXYZD i g i t a l A c t i v e L i n eEAV3FFEAV000EAV000LN1CRC0CRC1EAVXYZB l a n k i n g C o d e W o r d s o r O p t i o n a l A n c i l l a r y D a t aSAV3FFSAV000SAV000SAVXYZD i g i t a l A c t i v e L i n eEAV3FFEAV000EAV000LN1CRC0CRC1EAVXYZB l a n k i n g C o d e W o r d s o r O p t i o n a l A
41、n c i l l a r y D a t aSAV3FFSAV000SAV000SAVXYZD i g i t a l A c t i v e L i n eEAV3FFEAV000EAV000LN1CRC0CRC1EAVXYZB l a n k i n g C o d e W o r d s o r O p t i o n a l A n c i l l a r y D a t aSAV3FFSAV000SAV000SAVXYZD i g i t a l A c t i v e L i n eLN0LN0LN0LN0EAV3FFEAV3FFEAV3FFEAV3FFEAV000EAV000E
42、AV000EAV000EAV000EAV000EAV000EAV000EAVXYZEAVXYZEAVXYZEAVXYZLN1LN1LN1LN1D a t a S t r e a m f o u rD 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 o n eLN0LN0LN0LN06 G b / s S D I 1 0 - b i t i n t e r f a c e5 9 4 M H z o r 5 9 4 / 1 . 0 0 1 M H zFigure 1 Single-link 6G-SDI
43、 10-bit Multiplex Type 1 for Mode 1 SMPTE ST 2081-30:2017 Page 7 of 8 pages 6 G - S D I 1 0 - b i t m u l t i p l e xD a t a S t r e a m 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 r4 0 - b i t V i r t u a l I n t e r f a c eEAV3FF(C)EAV3FF(C)EAV3FF(C)EAV3FF(
44、C)EAV3FF(Y)EAV3FF(Y)EAV3FF(Y)EAV3FF(Y)EAV000(C)EAV000(C)EAV000(C)EAV000(C)EAV000(Y)EAV000(Y)EAV000(Y)EAV000(Y)EAV000(C)EAV000(C)EAV000(C)EAV000(C)EAV000(Y)EAV000(Y)EAV000(Y)EAV000(Y)EAVXYZ(C)EAVXYZ(C)EAVXYZ(C)EAVXYZ(C)EAVXYZ(Y)EAVXYZ(Y)EAVXYZ(Y)EAVXYZ(Y)LN0(C)LN0(C)LN0(C)LN0(C)D a t a S t r e a m f
45、o u rD 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 o n eEAV3FF(C)EAV3FF(Y)EAV000(C)EAV000(Y)EAV000(C)EAV000(Y)EAVXYZ(C)EAVXYZ(Y)EAV3FF(C)EAV3FF(Y)EAV000(C)EAV000(Y)EAV000(C)EAV000(Y)EAVXYZ(C)EAVXYZ(Y)EAV3FF(C)EAV3FF(Y)EAV000(C)EAV000(Y)EAV000(C)EAV000(Y)EAVXYZ(C)EAVXYZ(Y)
46、EAV3FF(C)EAV3FF(Y)EAV000(C)EAV000(Y)EAV000(C)EAV000(Y)EAVXYZ(C)EAVXYZ(Y)LN0(C)LN0(Y)LN0(C)LN0(Y)LN0(C)LN0(Y)LN0(C)LN0(Y)LN1(C)LN1(Y)CRC0(C)CRC0(Y)CRC1(C)CRC1(Y)B l a n k i n g C o d e W o r d s o r O p t i o n a l A n c i l l a r y D a t aSAV3FF(C)SAV3FF(Y)SAV000(C)SAV000(Y)SAV000(C)SAV000(Y)SAVXYZ(
47、C)SAVXYZ(Y)D i g i t a l A c t i v e L i n eLN1(C)LN1(Y)CRC0(C)CRC0(Y)CRC1(C)CRC1(Y)B l a n k i n g C o d e W o r d s o r O p t i o n a l A n c i l l a r y D a t aSAV3FF(C)SAV3FF(Y)SAV000(C)SAV000(Y)SAV000(C)SAV000(Y)SAVXYZ(C)SAVXYZ(Y)D i g i t a l A c t i v e L i n eLN1(C)LN1(Y)CRC0(C)CRC0(Y)CRC1(C
48、)CRC1(Y)B l a n k i n g C o d e W o r d s o r O p t i o n a l A n c i l l a r y D a t aSAV3FF(C)SAV3FF(Y)SAV000(C)SAV000(Y)SAV000(C)SAV000(Y)SAVXYZ(C)SAVXYZ(Y)D i g i t a l A c t i v e L i n eLN1(C)LN1(Y)CRC0(C)CRC0(Y)CRC1(C)CRC1(Y)B l a n k i n g C o d e W o r d s o r O p t i o n a l A n c i l l a
49、r y D a t aSAV3FF(C)SAV3FF(Y)SAV000(C)SAV000(Y)SAV000(C)SAV000(Y)SAVXYZ(C)SAVXYZ(Y)D i g i t a l A c t i v e L i n e6 G b / s S D I 1 0 - b i t i n t e r f a c e5 9 4 M H z o r 5 9 4 / 1 . 0 0 1 M H zFigure 2 Single-link 6G-SDI 10-bit Multiplex Type 2 for Mode 2 Note: Figure 1 shows the Type 1 10-bit multiplex resulting from mapping modes in which each data stream has a single instance of TRS words, Line Numbers, CRC Words, etc. Figure 2 shows the Type 2 10-bit multiplex resulting from mapping modes in which each data stream has two instances of TRS words, Line Numbe
