1、Page 1 of 11 pages SMPTE 369M-2002 SMPTE STANDARD for Television - Type D-11 Data Stream and AES3 Data Mapping over SDTI Table of contents 1 Scope 2 Normative references 3 General specifications 4 Headerdata 5 Payload data 6 AES3data 7 Auxiliary data 8 EDH Annex A SDI and SDTI operation at 23.98 . H
2、z) Annex B SDI and SDTI operation at 24 Hz) Annex C Bibliography 1 Scope This standard specifies the mapping of type D-11 compressed picture data stream into the SDTI payload area (SMPTE 305.2M) together with the mapping of four channels of AES3 data and time code data into H-ANC packets. Type D-11
3、compressed picture data stream mapping is defined for source coded picture rates of 24/1.001/P, 24/P, 25/P, 50-1, 30/1.001/P, and 60/1.001. For the transmission of compressed picture data coded at source picture rates of 25/P and 50/1, the SDTI interface operates at a frame rate of 25 Hz. For the tr
4、ansmission of compressed picture data coded at source picture rates of 30/1.001P and 60/1.0011, the SDTI interface operates at a frame rate of 30/1.001 Hz. The transmission of compressed picture data coded at the source picture rates of 24/1.001/P and 24/P require the SDTI interface to operate at fr
5、ame rates of 24/1.001 Hz and 24 Hz with the parameters defined in normative annex A and annex B of this standard. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this standard. At the time of publication, the editions
6、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. AES3-1992, Digital Audio Engineering - Serial Transmission Format for Two-
7、Channel Linearly Represented Digital Audio Data Copyright d 2002 by THE SOCIETY OF 595 W. Harisdale Ave white Plains, NY 10607 Approved March 28,2002 MOTION PICTURE AND TELEVISION ENGINEERS (914) 761-1100 SMPTE 369M-2002 ANSVSMPTE 259M-1997, Television - 1 O-Bit 4:2:2 Component and 4fsc Composite Di
8、gital Signals - Serial Digital Interface - _ - ANSVSM P_TE-272Mz 1 994,-Television = ormatting-AES/E-BU-Audio-aRd-Axiiiry-Datanto-Dgital Video Ancillary Data Space SMPTE 291 M-1998, Television - Auxiliary Data Packet and Space Formatting SMPTE 305.2M-2000, Television - Serial Data Transport Interfac
9、e (SDTI) SMPTE 367M-2002, Television - Type D-11 Picture Compression and Data Stream Format SMPTE RP 165-1994, Error Detection Checkwords and Status Flags for Use in Bit-Serial Digital Interfaces for Television SMPTE RP 188-1999, Transmission of Time Code and Control Code in the Ancillary Data Space
10、 of a Digital Television Data Stream 3 General specifications This standard specifies the mapping of the type D-11 data stream packets over SMPTE 305.2M (SDTI). The type D-11 data stream comprises packets of basic blocks containing compressed picture data and auxiliary picture data as specified in S
11、MPTE 367M. Four channels of 24-bit AES3 data are optionally mapped into the H-ANC space of the interface according to ANSVSMPTE 272M. In addition, VITC may also be mapped into the H-ANC space. The type D-11 data stream packets are grouped into six equal data segments of which the first three data se
12、gments are mapped onto the first field of the SDTI and the last three data segments are mapped onto the second field of the SDTI, as shown in figure 1 and table 1. Figure 1 also includes the optional four channels of 24-bit AES3 data mapped into the H-ANC space. VITC data may also be mapped into the
13、 H-ANC space. Page 2 of 11 pages SMPTE 369M-2002 Frame rate of the Interface Total number of lines Total number of samples per line I- l i i l I 24/1.001 Hz 24 Hz 25 Hz 30/1.001 Hz 525 625 625 525 21 45 1800 1728 1716 I) O Header EAV data Audio data 1440 1444 1497-1609625) SAV Switching point area F
14、irst field Cornpressed picture data Switching point area Second field Compressed picture data Figure 1 - SDTI mapping Table 1 - Total number of lines and samples per line for each frame rate of the interface -he 24/1 .O01 Hd24 Hz interface details are contained in annex A and annex B. I Page 3 of 11
15、 pages I Word No. O 1 CMPTE 369M-2002 Data name Value Comment ADF oooh ADF 3FFh 4 Headerdata 3 4 5 4.1 Location of the header data Header data shall be placed in H-ANC space and shall be located immediately following the EAV as shown in figure 1 and as defined by SMPTE 305.2M. - _ - DID 140h SDID 10
16、1h , Datacount , 22En I aa; 4 woras 1 4.2 Structure of the header data The structure of the Header data shall conform to SMPTE 305.2M and the contents shown in table 2. 7 8 9 10 shall be as Line No.1 xxx Line No. CRC O XXX Line No. CRC 1 XXX CODE and MI 101h Payload: 1440 words, MI: Unspecified Tabl
17、e 2 - Contents of header data (total words: 53) 27 - 42 43 44 Source address 200h Block type CRC flag 101h Payload CRC 241 h Fixed block size with ECC: 1438 words I 2 I ADF 46 47 48 Reserved 1 XXX Reserved 2 XXX Reserved 3 xxx I 6 I Line No.0 I xxx I 1 50 51 52 Header CRC O xxx Header CRC 1 xxx Chec
18、ksum XU I 11 -26 I Destinationaddress I 200h I 1 I 45 I Reserved0 I xxx I - I xxi-r Page 4 of 11 pages CMPTE 369M-2002 SDTI frame rate Total number of interface lines Horizontal mapping location Vertical mapping Location First field Second field O I , I l l l I ! I 2411 .O01 Hz and 29.97 Hz 24 Hz an
19、d 25 Hz 525 625 Samples O to 1439 Lines 50 to 261 Lines 313 to 524 Lines 59 to 270 Lines 372 to 583 5 Payload data Word No. I Data name 5.1 Location of the type D-1 1 stream data Value Comment The type D-11 data stream packets (comprising compressed picture and auxiliary data) shall be mapped into t
20、he payload space of the SDTI and shall be located as defined in table 3 and shown figure 1. 1 2 to 1437 1438 Table 3 - Location of compressed picture data User data 200h Valid data do not exist or 1 FEh or 1 FDh Valid data start line Valid data line - User data xxx Type D-1 1 compressed picture data
21、 Payload CRC O xxx NOTE - The line numbering of the vertical mapping location is the same as that defined in ANSIISMPTE 259M. Each compressed picture data stream is divided into six equal segments, numbered O to 5, as defined in SMPTE 367M. All the packets from segments O to 2 shall be mapped into t
22、he first field of the SDTI. All the packets from segments 3 to 5 shall be mapped into the second field of the SDTI. Figure 2 defines how the data packets are mapped into each field of the SDTI. 6.2 Structure and contents of the SDTI payload lines The SDTI payload lines shall contain the information
23、defined in table 4 and figure 2. Table 4 - Contents of compressed picture data O I Datatype I 248h Data type of type - I 1439 I Payload CRC 1 1 XXX 1 I Page 5 of 11 pages SMPTE 369M-2002 Compressed piciure d.18 - 224 W x 678 a 2 I Field Even dela 1 sync = 224 W Odd det I sync = 224 w 678 Odd dew I f
24、ield O0 :$sog 00000 090000 Figure 2 - Payload data stream structure For each field of the SDTI,1356 basic blocks of the type D-11 compressed picture data shall be mapped into the SDTI payload area on contiguous lines. In each SDTI field, 678 odd and 678 even data blocks are respectively selected fro
25、m channel O and channel 1 as specified in the SMPTE 367M. Page 6 of 11 pages SMPTE 369M-2002 4 b 219 W 5.2.1 Basic block formatting The compressed picture and auxiliary basic block format of the type D-11 compressed data shall conform to SMPTE 367M. 219 W 4 b 1 1 63 154 1 4 BID0 BID1 Awriliary Data
26、Reserved RVD K3.& For the purpose of transporting the basic blocks over SDTI, 4 bytes of Reed-Solomon ECC shall be added to each basic block. Between the end of each basic block and the start of the ECC, a 1-byte reserved word shall be added. The default value of the reserved word is zero. Figure 3
27、illustrates the addition of the reserved word and the 4-byte RS ECC to a compressed picture basic block. LUMINANCE CHROMINANCE I ECC I ECC Calculation range I Figure 3 - Addition of reserved word and ECC to a compressed picture basic block Figure 4 illustrates the addition of the reserved word and t
28、he 4-byte RS ECC to an auxiliary basic block. I 224 W I ECC Calculation range ECC Figure 4 - Addition of reserved word and ECC to an auxiliary basic block 5.2.2 Error correction code (Reed-Solomon ECC) Four words of Reed-Solomon ECC shall be added immediately after the reserved word (RVD). Page 7 of
29、 11 pages CMPTE 369M-2002 Frame rate Total number of lines of the Interface e The field generator polynomial of Reed-Solomon (RS) error correction code shall be as follows: Galois field: GF(256) Field generator polynomial: X8 + X4 + X3 + X2 + i - _ - _ - - - - 23.98Hz and 29.97Hz 24Hz and 25Hz 525 6
30、25 where Xi are place-keeping variables in GF(2), the binary field. Note that the plus sign for this and the following equations indicates modulo 256 addition. Lines 1 to 525 except for The code generator polynomial (GF(256) is defined as: Lines 1 to 625 except for G(X) = (X+1)(X+a)(X+a2)(X+a3) wher
31、e a is given by 02h in GF(256). The RS check characters are defined as K3, K2, K1, KO in K(X) = K3 X3 + K2 X2 + Ki X + KO , obtained as the remainder after dividing polynomial X4D(X) by G(X), where Ki are shown in figures 3 and 4, and D(X) is the polynomial given by the following equation: D(X) = BI
32、DoX219 + BID1X218 + HD X217+B215X216 + BA,&“+ . + B1X2 + BOX + RVD I 7-L- -. .-L. - - cqu&uri i fui ES E2C coae DIOCK (C(X) is expressed as follows: C(X)= X4 D(X) + K(X) 6 AES3data AES 3 data, if present, shall contain four audio channels in a single group and conform to the following mapping parame
33、ters. 6.1 Location of AES3 Data Mapping of AES3 data onto the serial digital interface shall comply with SMPTE 272M-C (see table 5). AES3 data comprises 24-bit words. The content of the AES3 data stream is not part of this standard. Table 5 - Location of AES3 data I Horizontal sample count I Samples
34、 1497 to 1637 1- iirnoles 1497 to 1609 I Mapping of AES3 data NOTE - This standard does not support the optional audio control data defined in ANSVSMPTE 272M. Page 8 of 11 pages SMPTE 369M-2002 Frame rate Total lines 525 241 .O01 Hz and 30/1 .O01 Hz 7 Auxiliary data 24 Hz and 25 Hz 625 An auxiliary
35、data packet may be used to map time code data (VITC). If present, the mapping shall comply with the following parameters. 3 4 5 7.1 Location of auxiliary data DID 260h DBN 260h Data count 11oh Auxiliary data shall be located in the H-ANC space immediately following the extended data packet. The vert
36、ical position of each auxiliary data line shall be as shown in table 6. The structure and location of the H-ANC auxiliary data packets shall conform to SMPTE 291 M. 6-21 22 Table 6 - Location of auxiliary data (vertical position) UDW 0-15 XM Checksum xxx I VITC I Line 14 and 277 I Lines 10and323 I 7
37、 VITC If present, mapping of VITC data on to the serial digital interface shall comply with SMPTE RP188, and shall be as specified in table 7. These VITC data shall have the same time code value as the VITC carried in the auxiliary data packets of SMPTE 367M. Table 7- VITC H-ANC packet I WordNo. I N
38、ame Value Comment 1 8 EDH EDH checkwords may be added in H-ANC space and shall be located as defined by SMPTE RP 165. Page 9 of 11 pages SMPTE 369M-2002 Frame rate Total number of lines EAV/SAV structure Annex A (normative) SDI and SDTI operation A.l Scope _- 24/1 .O01 Per second 525 (As per ANSVSMP
39、TE 125M) 3FF,OOO,OOO,XYZ As per ANSI/ SMPTE 125M and ANSI/SMPTE 259M . at 24l1.001 Hz (23.98 . Hr) - - - I- signal levels Serial bit rate 270 Mb/s This annex provides information and specifications for an interface based on ANSIISMPTE 259M and SMPTE 305.2M Using a frame rate of 24/1.001 framess. a A
40、S per ANSVSMPTE 259M A.2 General Total number of words per line Based upon the introduction of 1920 x 1080 television equipment having a progressive capture frame rate of 241.001 frames/s, there is a need to define an interface for transporting and monitoring of the compressed signal over SDTI. For
41、the transporting of compressed signals coded at a source picture rate of 241.001 frameds and fomatted according to SMPTE 367M, the SDTI interface shall operate at 24/1 .O01 frame&, interlaced, with parameters as defined in table A.l. 2145 Table Al - Interface sampling sttucture/formatting User data
42、words payload 1440 I Parameter 1 Value I Comments I (As per SMPTE 305.2M) Auxiliary data formatting EDH (As per SMPTE 291M/SMPTE RP188) (As per SMPTE RP 165) . Switching Compressed picture data mapping Line 10 Lines 50-261 Lines 313-524 Note - As this is a segmented frame payload, switching shall on
43、ly be on the frame boundary. Segments O to 2 Segments 3 to 5 Ancillary data words - I -&7 I Total line length minus user data and EAV/SAV words I I AES3 data formatting I 1497-1637 I (As per ANSVSMPTE 272M) I Auxiliary data Note - The auxiliary data space of this format is I 1638-2141 I greater than
44、 that for ANSVSMPTE 259M. I Page 10 of 11 pages SMPTE 369M-2002 Parameter Annex B (informative) SDI and SDTI operation at 24Hz B.l Scope 0 Value Comments 1 This annex provides information and specifications for an interface based on ANCVSMPTE 259M and SMPTE 305.2M using a frame rate of 24 framesls.
45、8.2 General Frame rate Total number of lines EAV/SAV structure Signal levels Based upon the introduction of 1920 x 1 O80 television equipment having a progressive capture frame rate of 24.00 frameds, there is a need to define an interface for transpomng and monitoring of the compressed signal over S
46、DTI. For the transporting of compressed signals coded at a source picture rate of 24 frame& and formatted according to SMPTE 367M, the CDTI interface should operate at 24 framesk, interlaced, with parameters as defined in table B.l. 24 Per second 625 (As per ANSI/SMPTE 125M) 3FF,OOO,OOO, XYZ As per
47、ANWSMPTE 125M and ANSVSMPTE 259M As per SMPTE 259M Table 6.1 - Interface sampling structure/formatting Total number of words per line User data words payload Ancillary data words AES3 data formatting 1800 1440 (As per CMPTE 305M) 352 1497-1 609 Total line length minus user data and EAWSAV words (As
48、per SMPTE 272M) Auxiliary data formatting EDH I Serial bit rate (As per SMPTE 291 M/RP188) (As Der SMPTE RP 165) I 270Mb/s I Switching Compressed picture data mapping Line 10 Lines 50-261 Note - As this is a segmented frame interface, switching must only be on the frame boundary. Segments O to 2 Aux
49、iliary data Lines 313-524 1610-1796 Segments 3 to 5 Note - The auxiliary data space of this format is greater than that for ANSVSMPTE 259M. Annex C (informative) Bibliography ANSVSMPTE 125M-1995, Television - Component Video Signal 42:2 - Bit-Parallel Digital Interface SMPTE 12M-1999, Television - Audio and Film -Time and Control Code SMPTE 368M-2002, Digital Television Tape Recording - 12.65-mm Type D-1 1 Format ITU-R BT.709-4 (03/00), Parameter Values for the HDTV Standards for Producti
