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SMPTE ST 425-5:2015
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使用Quad-link 3G-SDI实现4k视频的传输,包含了如何进行视频映射的协议; 文档都是淘宝花钱买的;
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Copyright © 2015 by THE SOCIETY OF
MOTION PICTURE AND TELEVISION ENGINEERS
3 Barker Avenue, White Plains, NY 10601
(914) 761-1100
Approved
March 26, 2015
SMPTE STANDARD
Image Format and Ancillary
Data Mapping for the Quad
Link 3 Gb/s Serial Interface
Page 1 of 28 pages
Table of Contents Page
Foreword.................................................................................................................................................. 2
Intellectual Property ................................................................................................................................. 2
Introduction .............................................................................................................................................. 2
1 Scope .................................................................................................................................................. 3
2 Conformance Notation ........................................................................................................................ 3
3 Normative References ........................................................................................................................ 4
4 Definition of Terms ............................................................................................................................. 4
5 Image Formats ................................................................................................................................... 5
5.1 2160-Line Source Image Formats .............................................................................................. 5
5.2 Image Mapping Overview ........................................................................................................... 6
5.2.1 2160-Line Image Division into Four Sub Images ........................................................... 7
5.2.2 Mapping the Sub Images – Overview ............................................................................ 7
5.3 Number of Audio Channels ........................................................................................................ 8
6 Level A Mapping for 2160-Line Source Images ................................................................................. 9
6.1 Level A Mapping of the Source Image ........................................................................................ 9
6.2 Ancillary Data .............................................................................................................................. 10
6.2.1 Audio Data ....................................................................................................................... 11
6.2.2 Time Code Data ............................................................................................................... 13
6.2.3 Payload Identifier ............................................................................................................. 13
7 Level B Dual-Link Mapping for 2160-Line Source Images ................................................................. 16
7.1 Level B Dual-Link Mapping of the Source Image ....................................................................... 16
7.2 Ancillary Data .............................................................................................................................. 17
7.2.1 Audio Data ....................................................................................................................... 18
7.2.2 Time Code Data .............................................................................................................. 20
7.2.3 Payload Identifier ............................................................................................................. 20
8 Data Stream Assignment for 3G-SDI Link 1 to 3G-SDI Link 4 ........................................................... 23
8.1 3G-SDI Link Interface Timing ..................................................................................................... 23
9 Levels of Operation (Informative) ....................................................................................................... 23
Annex A Bibliography (Informative) ...................................................................................................... 24
Annex B Square Division of 2160-Image Formats (Informative) .......................................................... 25
B.1 Level A Mapping ........................................................................................................................ 25
B.2 Level B Dual Link Mapping ........................................................................................................ 26
Annex C Ancillary Data Capacity of the Quad Link Interface (Informative) ......................................... 27
Annex D Document Roadmap (Informative) ........................................................................................ 28
SMPTE ST 425-5:2015
Revision of
SMPTE ST 425-5:2014
SMPTE ST 425-5:2015
Page 2 of 28 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. 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 its Standards Operations
Manual.
SMPTE ST 425-5 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 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 section is entirely informative and does not form an integral part of this Engineering Document.
There is a need in the industry to have an interface for transporting 2160-line images complying with the
4:2:0, 4:2:2 and 4:4:4 10-bit and 12-bit image formats defined by SMPTE ST 2048-1 and SMPTE ST 2036-1
which can be transported by a quad link SMPTE ST 424 serial interface. This standard also defines the
payload identifier.
SMPTE ST 425-5:2015
Page 3 of 28 pages
1 Scope
This standard defines the mapping of the image formats of 3840×2160 and 4096×2160 pixels listed in
Table 1 into eight parallel 10-bit data streams (known as data stream one, data stream two, data stream
three, data stream four, data stream five, data stream six, data stream seven and data stream eight) of an
80-bit virtual interface, followed by the mapping of these eight 10-bit data streams onto the Quad Link
3 Gb/s Serial Interface (3G-SDI Link 1, Link 2, Link 3 and Link 4) via four 20-bit virtual interfaces.
This standard also defines the carriage of ancillary data such as the audio data, the audio control packets,
the Payload Identifier and the time code.
It is not necessary for implementations to include support for all formats that are included in this standard.
Implementers should indicate supported formats in commercial publications.
2 Conformance Notation
Normative text is text that describes elements 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 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:”
The keywords "shall" and "shall not" 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 that 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 “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 document 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 of the types of normative information in this document
shall be 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.
SMPTE ST 425-5:2015
Page 4 of 28 pages
3 Normative References
Note: All references in this document to other SMPTE documents use the current numbering style (e.g.
SMPTE ST 274:2008) although, during a transitional phase, the document as published (printed or PDF)
may bear an older designation (such as SMPTE 274M-2008). Documents with the same root number (e.g.
274) and publication year (e.g. 2008) are functionally identical.
The following standards contain provisions that, 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 investigate the possibility of applying
the most recent edition of the standards indicated below.
SMPTE ST 12-2:2014, Transmission of Time Code in the Ancillary Data Space
SMPTE ST 274:2008, Television — 1920×1080 Image Sample Structure, Digital Representation and
Digital Timing Reference Sequences for Multiple Picture Rates
SMPTE ST 292-1:2012, 1.5 Gb/s Signal/Data Serial Interface
SMPTE ST 299-1:2009, 24-Bit Digital Audio Format for SMPTE 292 Bit-Serial Interface
SMPTE ST 299-2:2010, Extension of the 24-Bit Digital Audio Format to 32 Channels for 3 Gb/s Bit-Serial
Interfaces
SMPTE ST 352:2013, Payload Identification Codes for Serial Digital Interfaces
SMPTE ST 372:2011, Dual Link 1.5 Gb/s Digital Interface for 1920×1080 and 2048×1080 Picture Formats
SMPTE ST 425-1:2014, Source Image Format and Ancillary Data Mapping for the 3 Gb/s Serial Interface
SMPTE ST 435-1:2012, 10 Gb/s Serial Signal/Data Interface — Part 1: Basic Stream Derivation
SMPTE ST 2036-1:2014, Ultra High Definition Television — Image Parameter Values for Program
Production
SMPTE ST 2048-1:2011, 2048×1080 and 4096×2160 Digital Cinematography Production Image Formats
FS/709
SMPTE ST 2048-2:2011, 2048×1080 Digital Cinematography Production Image FS/709 Formatting for
Serial Digital Interface
4 Definition of Terms
This section defines terms used in this document.
4.1 3G-SDI Link 1/ 3G-SDI Link 2/3G-SDI Link 3/ 3G-SDI Link 4
Each of the four links that together compose the Quad Link 3 Gb/s Serial Interface.
4.2 Alpha Channel
An application dependent auxiliary component that is related to the source image (e.g. R′G′B′ or Y′C′
B
C′
R
).
These interfaces are denoted R′G′B′+A and Y′C′
B
C′
R
+A. Key signals as defined in SMPTE RP 157 are one
example of an alpha signal.
SMPTE ST 425-5:2015
Page 5 of 28 pages
4.3 Data stream one / data stream two / data stream three / data stream four/data stream five / data
stream six / data stream seven / data stream eight
Eight parallel 10-bit data streams of an 80-bit virtual interface. Each data stream shall have an interface
frequency of 148.5 MHz or 148.5/1.001 MHz.
4.4 HANC
Horizontal Ancillary Data Space is the Ancillary Data Space located during the horizontal interval of a video
line. The expressions HANC or HANC space are used interchangeably throughout the document.
4.5 Mapping Structure
The term Mapping Structure defines the structure of the virtual interface which the image data are mapped
onto. Different mapping structures are used according to the different sampling structures and pixel depths
of the images. The Mapping Structures 1, 2, 3 and 4 used in this standard are based on rules defined in
SMPTE ST425-1. The Mapping Structures I, II, III and IV used in this standard are defined in SMPTE ST
425-1.
4.6 Sub Image
A sub-division of a source image.
4.7 VANC
Vertical Ancillary Data Space is the Ancillary Data Space located between SAV and EAV during the vertical
interval of a video frame or field. The expressions VANC or VANC space are used interchangeably
throughout the document.
5 Image Formats
5.1 2160-Line Source Image Formats
For this interface, the source data shall be an uncompressed 10-bit or 12-bit video signal corresponding to
2160-line source image formats listed in Table 1.
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资源评论
- zhangbotm2019-01-16要424M的找错了,不过也挺不错的,给予4K的,后面学习
- szylcx2019-04-16很好,值得参考
- adiyutiantang2018-10-12资料很好,里面还有楼主的批注。
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