1、 Recommendation ITU-R BT.2077-2 (06/2017) Real-time serial digital interfaces for UHDTV signals BT Series Broadcasting service (television) ii Rec. ITU-R BT.2077-2 Foreword The role of the Radiocommunication Sector is to ensure the rational, equitable, efficient and economical use of the radio-frequ
2、ency spectrum by all radiocommunication services, including satellite services, and carry out studies without limit of frequency range on the basis of which Recommendations are adopted. The regulatory and policy functions of the Radiocommunication Sector are performed by World and Regional Radiocomm
3、unication Conferences and Radiocommunication Assemblies supported by Study Groups. Policy on Intellectual Property Right (IPR) ITU-R policy on IPR is described in the Common Patent Policy for ITU-T/ITU-R/ISO/IEC referenced in Annex 1 of Resolution ITU-R 1. Forms to be used for the submission of pate
4、nt statements and licensing declarations by patent holders are available from http:/www.itu.int/ITU-R/go/patents/en where the Guidelines for Implementation of the Common Patent Policy for ITU-T/ITU-R/ISO/IEC and the ITU-R patent information database can also be found. Series of ITU-R Recommendations
5、 (Also available online at http:/www.itu.int/publ/R-REC/en) Series Title BO Satellite delivery BR Recording for production, archival and play-out; film for television BS Broadcasting service (sound) BT Broadcasting service (television) F Fixed service M Mobile, radiodetermination, amateur and relate
6、d satellite services P Radiowave propagation RA Radio astronomy RS Remote sensing systems S Fixed-satellite service SA Space applications and meteorology SF Frequency sharing and coordination between fixed-satellite and fixed service systems SM Spectrum management SNG Satellite news gathering TF Tim
7、e signals and frequency standards emissions V Vocabulary and related subjects Note: This ITU-R Recommendation was approved in English under the procedure detailed in Resolution ITU-R 1. Electronic Publication Geneva, 2017 ITU 2017 All rights reserved. No part of this publication may be reproduced, b
8、y any means whatsoever, without written permission of ITU. Rec. ITU-R BT.2077-2 1 RECOMMENDATION ITU-R BT.2077-2 Real-time serial digital interfaces for UHDTV signals (Question ITU-R 130-2/6) (06/2015-10/2015-2017) Scope This Recommendation defines Serial Digital Interfaces for UHDTV studio signals
9、with 7 680 4 320 and 3 840 2 160 pixel counts, various frame frequencies up to 120 Hz, 4:4:4, 4:2:2, and 4:2:0 sample structures, and 10 and 12 bit depths defined in Recommendations ITU-R BT.2020 and ITU-R BT.2100. This Recommendation is divided into three parts. Part 1 and Part 3 are based on 10-bi
10、t word containers and Part 2 is based on 12-bit word containers. Part 1 and Part 2 use multi-link 10 Gbit/s optical interfaces and Part 3 uses single link and multi-link 6 Gbit/s, 12 Gbit/s and 24 Gbit/s electrical and optical interfaces. Keywords Serial Interface, UHDTV, Optical Interface, Sub-Imag
11、e, Real-Time The ITU Radiocommunication Assembly, considering a) that Recommendation ITU-R BT.2020 defines UHDTV studio signals with 7 680 4 320 and 3 840 2 160 pixel counts, various frame frequencies up to 120 Hz, 4:4:4, 4:2:2, and 4:2:0 sample structures, wide colour gamut, and 10 and 12 bit depth
12、s; b) that Recommendation ITU-R BT.2100 defines image parameter values for high dynamic range television for use in production and international programme exchange and contains the image formats having the same parameter values as defined in Recommendation ITU-R BT.2020 except for the following para
13、meters: transfer functions of the perceptual quantization (PQ) and the Hybrid Log-Gamma (HLG); luminance and colour difference signal representations of the non-constant luminance YCBCR and the constant intensity ICTCP; c) that a whole range of equipment based on these signals requires digital inter
14、faces for broadcasting chains and industrial applications; d) that digital interfaces for UHDTV studio signals should support all UHDTV formats permitted in Recommendations ITU-R BT.2020 and ITU-R BT.2100; e) that high-definition digital interfaces (HD-SDI) specified in Recommendation ITU-R BT.1120
15、were originally designed to transport 4:2:2, 10 bit HDTV signals at a frame frequency of up to 30 Hz or a field frequency of 60 Hz; f) that practical optical interfaces supporting a data rate of around 10 Gbit/s are available, and practical electrical and optical interfaces supporting data rates of
16、6 Gbit/s and 12 Gbit/s and 24 Gbit/s are available, and those interfaces supporting higher data rates will become possible in the future, 2 Rec. ITU-R BT.2077-2 recommends that the specifications described in Part 1, Part 2 or Part 3 of this Recommendation should be used for Real-Time Serial Digital
17、 Interfaces for UHDTV signals specified in Recommendations ITU-R BT.2020 and ITU-R BT.2100. NOTE 1 Table 1 tabulates key characteristics of the Part 1, 2 and 3 interfaces. Where there is a choice of interfaces for the desired infrastructure, it can be made taking account of operational and other bus
18、iness factors, including the transmission medium and distance as indicated in Table 1. TABLE 1 Key characteristics of the Part 1, 2 and 3 interfaces Part 1 Part 2 Part 3 Electrical Optical Data mapping Container 10-bit word 12-bit word 10-bit word Link speed 10.692 Gbit/s 10.692 Gbit/s 5.94, 11.88 o
19、r 23.76 Gbit/s Number of links Up to 16 Up to 24 Up to 8 Physical layer Transmission Medium Single-mode Optical fibre Single-mode or Multi-mode Optical fibre Coaxial cable Single-mode or Multi-mode Optical Fibre Number of fibres/cables 1 (DWDM) 1 (DWDM) or 24(single per fibre) Up to 8 1 (CWDM) or up
20、 to 8 (single per fibre) Connector LC/PC simplex/duplex SC/PC simplex or MPO BNC LC/PC simplex/duplex Transmission distance 2 km 100 m (MM) 2 km (SM) 100 m (6G) 70 m (12G) 30 m (24G) 100 m (MM) 4 km (SM) Example applications Inter-studio In-studio or Inter-studio In-Studio In-Studio or Inter-studio
21、CWDM: Coarse Wavelength Division Multiplex DWDM: Dense Wavelength Division Multiplex LC/PC: Lucent Connector SC/PC: Single fibre Coupling/Physical Contact MPO: Multiple-Fibre Push-On/Pull-off NOTE 2 Throughout this Recommendation h indicates a number in hexadecimal notation, and (10) indicates a num
22、ber in decimal notation. NOTE 3 The source ultra-high definition television (UHDTV) image sample structures for the interface are defined in Recommendations ITU-R BT.2020 and ITU-R BT.2100 and are listed in Table 2. UHDTV has an image format (sample structure) of 3 840 2 160 (UHDTV1) or 7 680 4 320
23、(UHDTV2). Rec. ITU-R BT.2077-2 3 NOTE 4 Throughout this Recommendation the notation of YCBCR is used to represent luminance and colour difference signals, which may be either YCBCR or ICTCP in practice, unless otherwise indicated. NOTE 5 When full range data is conveyed and signalled, the data is cl
24、ipped to the narrow range video data range. TABLE 2 Image sample structures and frame frequencies of UHDTV systems supported by this Recommendation System category System nomenclature Luminance or R G B samples per line Lines per frame Frame frequency (Hz) UHDTV1 3 840 2 160/23.98/P 3 840 2 160 24/1
25、.001 3 840 2 160/24/P 24 3 840 2 160/25/P 25 3 840 2 160/29.97/P 30/1.001 3 840 2 160/30/P 30 3 840 2 160/50/P 50 3 840 2 160/59.94/P 60/1.001 3 840 2 160/60/P 60 3 840 2 160/100/P 100 3 840 2 160/119.88/P 120/1.001 3 840 2 160/120/P 120 UHDTV2 7 680 4 320/23.98/P 7 680 4 320 24/1.001 7 680 4 320/24
26、/P 24 7 680 4 320/25/P 25 7 680 4 320/29.97/P 30/1.001 7 680 4 320/30/P 30 7 680 4 320/50/P 50 7 680 4 320/59.94/P 60/1.001 7 680 4 320/60/P 60 7 680 4 320/100/P 100 7 680 4 320/119.88/P 120/1.001 7 680 4 320/120/P 120 4 Rec. ITU-R BT.2077-2 PART 1 1 Definition of terms ANC Ancillary data packets UH
27、DTV Ultra-high definition television, having an image format (sample structure) of 3 840 2 160 or 7 680 4 320 UHDTV1 UHDTV having an image format (sample structure) of 3 840 2 160 UHDTV2 UHDTV having an image format (sample structure) of 7 680 4 320 CRC Cyclic redundancy check codes defined in Recom
28、mendation ITU-R BT.1120 CDR Clock data recovery EAV The term EAV used in Part 1 of this Recommendation designates 4 bytes of timing information around an end of active video area HANC data Data included in the digital line blanking interval between EAV/LN/CRC and SAV K28.5 Special code for the word
29、boundary detection of 8B/10B coding defined in ANSI INCITS 230 LN Line number data defined in Recommendation ITU-R BT.1120 Container format The pixel array present on the interface to transport images (for Part 1 of this Recommendation the container is 1 920 1 080) SAV Timing information around a st
30、art of active video area defined in Recommendation ITU-R BT.1120 Basic stream A 10-bit parallel stream which has the same structure as the source data stream defined in Recommendation ITU-R BT.1120 This interleaved data stream carries the image structure defined in the source format data defined in
31、Recommendation ITU-R BT.1120 Even basic stream Channel CH2, CH4, CH6 and CH8 (Link Bs) of basic streams defined in Annex B to Part 1 B1.4 (Mode D) Odd basic stream CH1, CH3, CH5 and CH7 (Link As) of basic streams defined in Annex B to Part 1 B1.4 (Mode D) Stuffing data Designates one of the data byt
32、e D0.0 of 8B/10B coding defined in ANSI INCITS 230 LC (Lucent Connector) IEC 61754-20 (2012), Fibre Optic Connector Interfaces Part 20: Type LC Connector Family 2 Basic system overview For UHDTV1, two images should be mapped into 4 or 8 or 16 or 32 sub-images through 2-sample or 2-frame interleave d
33、ivision in the case of 100 Hz and 120 Hz and should be mapped into single-link, dual-link, quad-link, octa-link or sixteen-link 10G-HDSDI Mode D defined in Annex B to Part 1 through basic streams that comply with 1.5 Gbit/s Serial Digital Interface defined in Recommendation ITU-R BT.1120 as shown in
34、 Fig. 1-1. Switching interface signals mapped according to Part 1 of this Recommendation is restricted to a maximum of 60 Hz. Base band switching is not constrained. Rec. ITU-R BT.2077-2 5 When embedding optional ANC data, the ANC data packet format should be in conformance with Recommendation ITU-R
35、 BT.1364. Ancillary audio data should be as defined in Recommendation ITU-R BT.1365 and should be mapped in the following order: (1st) CH1 basic stream of 10G-HDSDI Link 1, up to a maximum of 16 channels at a sampling frequency of 48 kHz or up to a maximum of eight channels at a sampling frequency o
36、f 96 kHz; (2nd) CH1 basic stream of 10G-HDSDI Link 2, up to a maximum of 16 channels at a sampling frequency of 48 kHz or up to a maximum of eight channels at a sampling frequency of 96 kHz. The multiple numbers of basic streams conveying the source data of UHDTV images should be multiplexed and ser
37、ialized into a single-link or multiple-link 10G-HDSDI as defined in 3 and 4. FIGURE 1-1 UHDTV mapping overview F i g u r e 11 21 2 1 21 21 21 2 1 21 23 43 4 3 43 41 21 2 1 21 21 0 G - H D S D I L i n k 11 0 G - H D S D I L i n k 2 , 4 , 8 o r 1 6B a s i c S t r e a m 1B a s i c S t r e a m 8B a s i
38、c S t r e a m 1B a s i c S t r e a m 8U H D T V 1 , 23 43 4 3 43 43 43 4 3 43 42 - s a m p l e o r 2 - F r a m e 2 - s a m p l e i n t e r l e a v e d i v i s i o nH D T V C l a s s S u b I m a g e s 1 - 4 o r 1 - 1 6 o r 1 - 3 2EAVSAVH A N CD a t aS y s t e m 1 . 1 , 2 . 1 2 . 5 , 4 . 1 4 . 3d f i
39、n e d i nS M P T E S T 4 3 5 - 1EAVSAVH A N CD a t aS y s t e m 1 . 1 , 2 . 1 2 . 5 , 4 . 1 4 . 3d f i n e d i nS M P T E S T 4 3 5 - 1EAVSAVH A N CD a t aS y s t e m 1 . 1 , 2 . 1 2 . 5 , 4 . 1 4 . 3d e f i n e d i nA p p e n d i x AEAVSAVH A N CD a t aS y s t e m 1 . 1 , 2 . 1 2 . 5 , 4 . 1 4 . 3d
40、 e f i n e d i nA n n e x A3 UHDTV1 Mapping into single-link or dual-link or quad-link 10G-HDSDI 3.1 Video payload mapping Table 1-1 shows the image formats which should be divided into four sub-images by 2-sample interleave division or 2-frame 2-sample interleave division and should be mapped into
41、the single-link or the dual-link or the quad-link 10G-HDSDI Mode D defined by Annex B to Part 1. Each sub-image should have the 1 920 1 080 image format defined as systems 1.1, 2.1, 2.2, 2.3, 2.4, 2.5, 4.1, 4.2 or 4.3 in Annex A to Part 1, Tables 1-A1, 1-A2 and 1-A3. 6 Rec. ITU-R BT.2077-2 TABLE 1-1
42、 Source image formats of UHDTV1 supported by Part 1 of this Recommendation S y s t e m N u m b e rS y s t e m n o m e n c l a t u r eS a m p l i n g S t r u c t u r e / P i x e l D e p t hF r a m e f r e q u e n c y H zS u b - i m a g e f o r m a t d e f i n e d i n A n n e x A t o P a r t 1U 1 . 13
43、 8 4 0 2 1 6 0 / 2 4 / P3 8 4 0 2 1 6 0 / 2 5 / P3 8 4 0 2 1 6 0 / 3 0 / P3 8 4 0 2 1 6 0 / 2 3 . 9 8 / P3 8 4 0 2 1 6 0 / 2 9 . 9 7 / P4 : 2 : 0 o r 4 : 2 : 2( Y C B C R ) / 1 0 - b i t2 4 , 2 5 a n d 3 0 P r o g r e s s i v e2 4 / 1 . 0 0 1 , 3 0 / 1 . 0 0 1 P r o g r e s s i v eS y s t e m 1 . 1U
44、 1 . 23 8 4 0 2 1 6 0 / 2 4 / P3 8 4 0 2 1 6 0 / 2 5 / P3 8 4 0 2 1 6 0 / 3 0 / P3 8 4 0 2 1 6 0 / 2 3 . 9 8 / P3 8 4 0 2 1 6 0 / 2 9 . 9 7 / P4 : 4 : 4 ( R G B ) / 1 0 - b i t2 4 , 2 5 a n d 3 0 P r o g r e s s i v e2 4 / 1 . 0 0 1 , 3 0 / 1 . 0 0 1 P r o g r e s s i v eS y s t e m 2 . 2U 1 . 33 8
45、4 0 2 1 6 0 / 2 4 / P3 8 4 0 2 1 6 0 / 2 5 / P3 8 4 0 2 1 6 0 / 3 0 / P3 8 4 0 2 1 6 0 / 2 3 . 9 8 / P3 8 4 0 2 1 6 0 / 2 9 . 9 7 / P4 : 4 : 4 ( R G B ) / 1 2 - b i t2 4 , 2 5 a n d 3 0 P r o g r e s s i v e2 4 / 1 . 0 0 1 , 3 0 / 1 . 0 0 1 P r o g r e s s i v eS y s t e m 2 . 3U 1 . 43 8 4 0 2 1 6
46、0 / 2 4 / P3 8 4 0 2 1 6 0 / 2 5 / P3 8 4 0 2 1 6 0 / 3 0 / P3 8 4 0 2 1 6 0 / 2 3 . 9 8 / P3 8 4 0 2 1 6 0 / 2 9 . 9 7 / P4 : 4 : 4 ( Y C B C R ) / 1 0 - b i t2 4 , 2 5 a n d 3 0 P r o g r e s s i v e2 4 / 1 . 0 0 1 , 3 0 / 1 . 0 0 1 P r o g r e s s i v eS y s t e m 2 . 4U 1 . 53 8 4 0 2 1 6 0 / 2
47、4 / P3 8 4 0 2 1 6 0 / 2 5 / P3 8 4 0 2 1 6 0 / 3 0 / P3 8 4 0 2 1 6 0 / 2 3 . 9 8 / P3 8 4 0 2 1 6 0 / 2 9 . 9 7 / P4 : 2 : 0 , 4 : 2 : 2 o r 4 : 4 : 4( Y C B C R ) / 1 2 - b i t2 4 , 2 5 a n d 3 0 P r o g r e s s i v e2 4 / 1 . 0 0 1 , 3 0 / 1 . 0 0 1 P r o g r e s s i v eS y s t e m 2 . 5U 1 . 63
48、 8 4 0 2 1 6 0 / 5 0 / P3 8 4 0 2 1 6 0 / 6 0 / P3 8 4 0 2 1 6 0 / 5 9 . 9 4 / P4 : 2 : 0 o r 4 : 2 : 2( Y C B C R ) / 1 0 - b i t5 0 a n d 6 0 P r o g r e s s i v e6 0 / 1 . 0 0 1 P r o g r e s s i v eS y s t e m 2 . 1U 1 . 73 8 4 0 2 1 6 0 / 5 0 / P3 8 4 0 2 1 6 0 / 6 0 / P3 8 4 0 2 1 6 0 / 5 9 .
49、9 4 / P4 : 2 : 0 o r 4 : 2 : 2( Y C B C R ) / 1 2 - b i t5 0 a n d 6 0 P r o g r e s s i v e6 0 / 1 . 0 0 1 P r o g r e s s i v eS y s t e m 4 . 1U 1 . 83 8 4 0 2 1 6 0 / 5 0 / P3 8 4 0 2 1 6 0 / 6 0 / P3 8 4 0 2 1 6 0 / 5 9 . 9 4 / P4 : 4 : 4( R G B o r Y C B C R ) / 1 0 - b i t5 0 a n d 6 0 P r o g r e s s i v e6 0 / 1 . 0 0 1 P r o g r e s s i v eS
