1、 GYGY/T 270 2013 Specification of closed caption system for digital television 2013 - 08 - 14 2013 - 08 - 14 GY/T 270 2013 I . III 1 . 1 2 . 1 3 . 1 3.1 . 1 3.2 . 2 4 . 2 5 . 3 6 . 3 6.1 . 4 6.2 PES . 4 6.3 . 4 6.4 . 6 6.5 HD-SDI/SDI . 7 7 . 7 7.1 . 7 7.2 cc_data . 7 7.3 cc_data . 8 7.4 cc_data() .
2、8 7.5 cc_data() . 8 7.6 cc_data() .98 . 9 9 . 9 9.1 . 9 9.2 . 10 9.3 .109.4 . 12 10 . 12 10.1 . 12 10.2 . 13 11 . 22 11.1 . 22 11.2 . 23 11.3 . 23 11.4 . 23 11.5 . 26 11.6 . 29 11.7 . 29 GY/T 270 2013 II 11.8 . 29 11.9 . 29 11.10 . 31 A . 42 B . 45 . 49 GY/T 270 2013 III GB/T 1.1-2009 SAC/TC 239 GY/
3、T 270 2013 1 1 /2 GB 2312-1980 GB/T 4880.2-2000 2 :3 GB 13000-2010 UCS GB/T 17975.1-2010 1 : GB/T 17975.2-2000 2 : GB 18030-2005 SMPTE 333M-1999 DTV closed-caption server to encoder interface SMPTE 334-1-2007 Vertical ancillary data mapping of caption data and other related data SMPTE 334-2-2007 Cap
4、tion distribution packet (CDP) definition SMPTE 436M-2006 VBI MXF MXF mappings for VBI lines and ancillary data packets3 3.1 3.1.1 closed caption3.1.2 reservedGY/T 270 2013 2 13.1.3 caption provider3.1.4 receiver 3.1.5caption service 3.1.6 caption channel packet 3.1.7 caption text 3.1.8 caption comm
5、and 3.2 bslbf bit string left bit first DTVCC Digital TeleVision Closed Captions SEI (Supplemental Enhancement Information) uimsbf unsigned integer most significant bit first VANC (Vertical ANCillary data packets located in the vertical blanking interval of the SDI interface)4 HD-SDI/SDI VANC MXFPES
6、GY/T 270 2013 3 6A B 5 1 1 11 10 9 8 7 6 GB/T 17975.1-20106 GY/T 270 2013 4 6.1 HD-SDI/SDI SMPTE 334-1-2007 SMPTE334-2-2007VANC SMPTE 436M-2006MXF PES 6.26.3PES cc_data() cc_data() GB/T 17975.1-2010PES PES PTS cc_data() 7 9600bps6.2 PES PES cc_data() PES PES_packet_data_byte2 2 PES_packet_data_byte
7、PES_packet_data_byte() cc_data() 7 PES PES 3 3 PES cc_data() stream_id 1011 1101b PES_packet_length PES 0 data_alignment_indicator 1 PES_packet_data_byte cc_data PTS PES PES PTS PES_packet_data_byte cc_data() stream_type 0x80 6.3 6.3.1 DVB1_data DVB1_data GB/T 17975.2-2000 GB/T 20090.2-2006 GY/T 257
8、.1-2012 ITU-T H.264-2012 , DVB1_data4 GY/T 270 2013 5 4 DVB1_data DVB1_data() user_data_type_code 8 uimsbf user_data_type_structure() 7 cc_data() user_data_type_code 0x03 user_data_type_structure() 7.2cc_data() 6.3.2 GB/T 17975.2-2000 GB/T 20090.2-2006 GY/T 257.1-2012 GB/T 17975.2-2000 GB/T 20090.2-
9、2006 GY/T 257.1-2012extension_and_user_data() extension_and_user_data() user_data()user_data() 55 user_data()user_data() user_data_start_code 32 bslbf user_identifier 32 bslbf user_structure() user_data_start_code: 0x000001B2 GB/T 17975.2-2000user_identifier DVB1_data() 0x47413934( GA94 ) user_struc
10、ture() DVB1_data() 6.3.3 ITU-T H.264-2012 ITU-T H.264-2012 SEI user_data_registered_itu_t_t35(), user_data_registered_itu_t_t35() 6 6 user_data_registered_itu_t_t35() user_data_registered_itu_t_t35 (payloadsize) itu_t_t35_conntry_code 8 uimsbf itu_t_t35_provider_code 16 uimsbf user_identifier 32 bsl
11、bf user_structure() itu_t_t35_conntry_code: 0x26 itu_t_t35_provider_code 0x0031 user_identifier DVB1_data() 0x47413934( GA94 ) GY/T 270 2013 6 user_structure() DVB1_data() 6.3.4 cc_data() cc_count9600bps cc_data_1cc_data_2 77 / cc_count cc_data_bytes 25 24 48 25 12 24 6.4 PSI/SI caption_service_desc
12、riptor PSI/SI PMT EIT (GB/T 28161-2011) caption_service_descriptor PMT PMT16 caption_service_descriptorcaption_service_descriptor caption_service_descriptor 8 8 caption_service_descriptor caption_service_descriptor() descriptor_tag 8 0x86descriptor_length 8 uimsbf reserved 3 111 number_of_services 5
13、 uimsbf for (i=0; i N n DLC DF6 F / ? O _ o RST DF7 C2 G2 C3 G3 0 TSP 1 NBTSP 2 3 4 5 6 1/8 7 3/8 8 5/8 9 7/8 A | B C D SM E F C0 C1 G0 G1 CL CR GL GR C2 G2 C3 G3EXT1 0x10 C2 G2 C3 G3 EXT1CC GY/T 270 2013 15 EXT1 2 EXT1 C2 G2 C3 G3G3 0x10 0xA0 EXT1 NBS 1 2 310.2.2 C0 C0 00h 1Fh 32 19 0x00H 0x0FH 0x1
14、0H 0x17H 0x18H 0x1FH ASCII NUL BS FF EXT1 P16 16ETX CR FF ASCII 11 HCR 11 19 C0b3 b0 b7 b4 C0 0 1 0 NUL EXT1 1 2 3 ETX 4 5 6 7 8 BS P16 9 A B C FF D CR E HCR F C0 0x00 0x0F0x11 0x17 0x18 0x1FGB 2312-1980 GB 13000.1-2010 GB 18030-2005 16P16 CC GY/T 270 2013 16 10.2.3 C1 C1 0x80 0x9F 32 2011 20 C1b3 b
15、0 b7 b4 C1 8 9 0 CW0 SPA 1 CW1 SPC 2 CW2 SPL 3 CW3 4 CW4 5 CW5 6 CW6 7 CW7 SWA 8 CLW DF0 9 DSW DF1 A HDW DF2 B TGW DF3 C DLW DF4 D DLY DF5 E DLC DF6 F RST DF7 0x93 0x96 10.2.4 G0 G0 0x20 0x7F 96 21 ASCII ASCII0x7F ASCII GY/T 270 2013 17 21 G0b3 b0 b7 b4G02 3 4 5 6 7 0 SP 0 P p 1 ! 1 A Q a q 2 2 B R
16、b r 3 # 3 C S c s 4 $ 4 D T d t 5 % 5 E U e u 6 & 6 F V f v 7 7 G W g w 8 8 H X h x 9 ) 9 I Y i y A * J Z j z B + K k C N n F / ? O _ o 0x5F G3 G0 10.2.5 G1 G1 0xA0 0xFF 96 G1 EXT1 G1 G122 ISO 859-1 Latin -1 G0/ GY/T 270 2013 18 22 G1b3 b0 b7 b4 G1 A B C D E F 0 NBS 1 2 3 4 5 6 7 8 9 A B C D - E F G
17、1 EXT1 2 10.2.6 G2 G2 0x20 0x7F G2 EXT1 G2 G223 TSP 0x20NBTSP 0x21 wordwrap=0, TSP 0x30 GY/T 270 2013 19 23 G2b3 b0 b7 b4 G2 2 3 4 5 6 7 0 TSP 1 NBTSP 2 3 4 5 6 1/8 7 3/8 8 5/8 9 7/8 A | B C D SM E F G2 EXT1 2 G2 10.2.7 G3 G3 CC 24 G30xA0 0xFF G3 EXT1 G3 GY/T 270 2013 20 24 G3b3 b0 b7 b4 G3 A B C D
18、E F 0 1 2 3 4 5 6 7 8 9 A B C D E F F G3 EXT1 2 G3 10.2.8 C2 C2 25 C2 0x00 0x1FC2 EXT1 C2 0x00 0x07 2 0x08 0x0F 3 0x10 0x17 4 0x18 0x1F 5 EXT1 0x18 CC GY/T 270 2013 21 25 C2b3 b0 b7 b4 C2 0 1 0 1 2 3 4 5 6 7 8 9 A B C D E F 10.2.9 C3 10.2.9.1 C3 26 C3 0x80 0x9FC3 EXT1 C310.2.9.2 C3 0x80 0x8F C3 0x80
19、 0x87 5 4 6 C3 0x88 0x8F 6 5 7 6 EXT1 0x88 GY/T 270 2013 22 10.2.9.3 C3 0x90 0x9F 12 b7 b6 0 b5 5 b4b0 00 BOC 01 COC 11 EOC 0 2726 C3 b3 b0 b7 b4 C3 8 9 0 1 2 3 4 5 6 7 8 9 A B C D E F 11 11.1 5 GY/T 270 2013 23 11.2 11.9 11.10 11.2 80%16:9 4:3 16:9 21075 4:3 160 75horizontal, vertical0,0 16:9 209 0
20、 0,74209 74 4:3 0,0 (159,0),(0,74), (159,74) 100100 2 16:9 2 16:9 11.3 :11.4 GY/T 270 2013 24 11.4.1 8 11.4.2 0 7 11.4.3 8 0 711.4.4 94 11.4.5 IDID 0 8 ID 0 ID 8ID 4 3 3 44 GY/T 270 2013 25 11.4.6 11.4.7 1532,11.4.8 11.4.9 CRHCRn n BS BSHCR FF ClearWindows (CLW) SetPenLocation (SPL) (0,0) CR HCR FF
21、11.4.10 11.4.10.1 11.4.10.2 EXT 11.4.10.3 GY/T 270 2013 26 11.4.10.4 11.4.11 DisplayWindowsHideWindows 11.4.12 11.4.13 SetWindowAttributes SetPenAttributesDefineWindow IDID ( A) 11.5 11.5.1 SetPenAttributes ,SetPenAttributes11.5.2 1/15 16:9 4:31/42 1/32 42/3242/32 32/4232/42 GY/T 270 2013 27 11.5.3
22、11.5.4 SetPenAttributes 88 0 1 23 4 5 6 7 8 ,11.5.5 11.5.6 11.5.7 11.5.8 11.5.9 5 GY/T 270 2013 28 5 11.5.10 SetPenAttributes01 ID 2 34 5 6 7 8 9 10 11 12 14 15 15 11 GY/T 270 2013 29 11.5.11 a SetPenAttributes b SetPenAttributes c SetPenAttributes0 11.6 SetPenColor SetPenAttributesG0 G1 G2 G3C0 P16
23、 ETX 0x03ETX 0x0311.7 SetPenLocation11.8 20 0 0 3 3 3 3 0 0 0 3 0 0 0 364 11.9 11.9.1 11.9.2 128GY/T 270 2013 30 1/1011.9.3 DelayCancel DelayCancel DelayCancelDelayCancelDelayCancel Delay DelayCancel11.9.4 ResetReset11.9.5 Reset DelayCancel Reset DelayCancel6 Reset DelayCancel / #1 / #n 6Reset Delay
24、Cancel 11.9.6 a DTVCC#1 #1 DTVCC#n #nGY/T 270 2013 31 b c d 11.10 11.10.1 27 27 SetCurrentWindow Window ID DefineWindow Window ID,prority,anchor point,relative positioning,anchor vertical,anchor horizontal,row count,column count,row lock,column lock,visible,window style ID,pen style ID DLW DeleteWin
25、dow Window map HSW DisplayWindow Window map HDW HideWindow Window map TGW ToggleWindow Window map SWA SetWindowAttrbutes Justify,print direction,scroll direction,wordwrap,display effect,effect direction,effect speed,fill color,fill opacity,border type,border color 11.10.2 28 28 SPA SetPenAttributes
26、pen size,font,text tag,offset,italics,underline,edge type SPC SetPenColor Fg color,fg opacity,bg color,bg opacity,edge color SPL SetPenLocation Row,column 11.10.3 2929 DLY Delay tenths of seconds DLC DelayCancel RST Reset 11.10.4 G0 G1 G2 G3GY/T 270 2013 32 P16 GB 2312-1980 GB 13000.1-1993 GB 18030-
27、2005C0 ETXC1 EXTETX EXT 11.10.5 11.10.5.111.10.5.2SetCurrentWindow SetCurrentWindow- window ID SetCurrentWindow window ID window ID(id) (0 7) CW0, . , CW7 = 80h, . , 87h (10000000b, . , 10000111b) b7 b6 b5 b4 b3 b2 b1 b0 1 0 0 0 0 id2 id1 id0 command SetCurrentWindow DefineWindow 11.10.5.3DefineWind
28、ow DefineWindow- DefineWindow window ID, priority, anchor point, relative positioning, anchor vertical, anchor horizontal, row count, column count, row lock, column lock,visible, window style ID, pen style ID a window ID (id) 0 7 b priority (p) 0 7 c anchor point (ap) ID 0 8 d relative positioning (
29、rp) 1 av ah100 100 e anchor vertical (av) relative positioning(rp) 00 74 relative positioning(rp) 1 0 99 SET CURRENT WINDOW- CWx DEFINE WINDOW- DF0 DF7 GY/T 270 2013 33 f anchor horizontal(ah) relative positioning(rp) 016:9 0 209, 4:3 0159 relative positioning(rp) 1 0 99 g row count (rc) SetPenAttri
30、butes0 14 h column count (cc)SetPenAttributes 0 31 4:3 0 41 16:9 i row lock (rl) YES NOcolumn lock YESNO = 1 0 j column lock (cl) YEScolumn lock YES NO = 1 0k visible (v) YES NOYES NO = 1 0 l window style ID (ws) 0 7 ID 71 7 , A.2 ID1SetWindowAttributes m pen style ID(ps) 0 7 71 7 , A.31SetPenAttrib
31、utes DF0, . , DF7 = 98h, . , 9Fh (10011000b, . , 10011111b) b7 b6 b5 b4 b3 b2 b1 b0 1 0 0 1 1 id2 id1 id0 command 0 0 v rl cl p2 p1 p0 parm1 rp av7 av6 av5 av4 av3 av1 av0 parm2 ah7 ah6 ah5 ah4 ah3 ah2 ah1 ah0 parm3 ap3 ap2 ap1 ap0 rc3 rc2 rc1 rc0 parm4 0 0 cc5 cc4 cc3 c2 cc1 c0 parm5 0 0 ws2 ws1 ws
32、0 ps2 ps1 ps0 parm6 DefineWindow ID windowID IDDefineWindow0 0 DefineWindowSetCurrentWindowwindow style IDGY/T 270 2013 34 SetWindowAttributes Pen style IDSetPenAttributes DefineWindowDefineWindow11.10.5.4ClearWindows ClearWindows- ClearWindows window map window map (w) 8 window ID 4 1 0 CLW = 88h (
33、10001000b) b7 b6 b5 b4 b3 b2 b1 b0 1 0 0 0 1 0 0 0 command w7 w6 w5 w4 w3 w2 w1 w0 parm1 ClearWindows11.10.5.5DeleteWindows DeleteWindows- DeleteWindows window mapwindow map (w) 8 ID 4 window ID 4 1 0DLW = 8Ch (10001100b) b7 b6 b5 b4 b3 b2 b1 b0 1 0 0 0 1 1 0 0 command w7 w6 w5 w4 w3 w2 w1 w0 parm1
34、DeleteWindows Windows window map 64 CLEAR WINDOWS-(CLW) DELETE WINDOWS-(DLW) GY/T 270 2013 35 Windows6 W6 5 W5 2 W2 window map FF IDSetCurrentWindow DefineWindow 11.10.5.6DisplayWindows DisplayWindows- window ( ) window map (w) 8 window ID 4 1 0 DSW = 89h (10001001b) b7 b6 b5 b4 b3 b2 b1 b0 1 0 0 0
35、1 0 0 1 command w7 w6 w5 w4 w3 w2 w1 w0 parm1 DisplayWindows window map 96 Windows 7 W7 4 W4 2 W2 1 W1 window map FF Windows ID 11.10.5.7HideWindows HideWindows- window HideWindows window map window map (w) 8 window ID 4 1 0 HDW = 8Ah (10001010b) b7 b6 b5 b4 b3 b2 b1 b0 1 0 0 0 1 0 1 0 command w7 w6 w5 w4 w3 w2 w1 w0 parm1 HideWindows window map 0x72 windows 6 W6 5 W5 4 W4 1 W1 window map 0xFF11.10.5.8ToggleWindows HIDE WINDOWS-(HDW) DISPLAY WINDOWS (DSW) GY/T 270 2013 36 ToggleWindows- /window ToggleWindows window mapwindow map (w
