IEC 62356-3-2003 pdf – Video recording – 12,65 mm type D-11 format – Part 3: Data mapping over SDTI

IEC 62356-3-2003 pdf – Video recording – 12,65 mm type D-11 format – Part 3: Data mapping over SDTI.
1 Scope This International 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 compressed picture data-stream mapping is defined for source-coded picture rates of 24/1,001/P,24/P, 25/P, 50-I, 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/I, the SDTI interface operates at a frame rate of 25 Hz. For the transmission of compressed picture data coded at source picture rates of 30/1,001P and 60/1,001I, 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 frame rates of 24/1, 001Hz and 24 Hz with the parameters defined in Annexes A and B of this standard. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 62356-2: Video recording – 12,65 mm type D-11 format – Part 2: Picture compression and data stream 1 SMPTE 259M:1997, Television – 10-Bit 4:2:2 Component and 4fsc Composite Digital signals – Serial Digital Interface SMPTE 272M:1994, Television – Formatting AES/EBU Audio and Auxiliary Data into Digital Video Ancillary Data Space SMPTE 291M:1998, Television – Ancillary Data Packet and Space Formatting SMPTE 305.2M:2000, Television – Serial Data Transport Interface (SDTI) SMPTE RP165:1994, Error Detection Check words and Status Flags for Use in Bit-Serial Digital Interfaces for Television SMPTE RP188:1999, Transmission of Time Code and Control Code in the Ancillary Data Space of a Digital Television Data Stream AES3:1992, Serial transmission format for two-channel linearly represented digital audio data
3 General specifications This standard specifies the mapping of type D-11 data stream packets over SMPTE 305.2M (SDTI). Type D-11 data stream comprises packets of basic blocks containing compressed picture data and auxiliary picture data as specified in IEC 62356-2. Four channels of 24-bit AES3 data are optionally mapped into the H-ANC space of the interface according to SMPTE 272M. In addition, VITC may also be mapped into the H-ANC space. Type D-11 data-stream packets are grouped into six equal data segments of which the first three data segments 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 H-ANC space.
For each field of the SDTI, 1 356 basic blocks of 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 from channel 0 and channel 1 as specified in IEC 62356-2. 5.2.2 Basic block formatting The compressed picture and auxiliary basic block format of type D-11 compressed data shall conform to IEC 62356-2. For the purpose of transporting the basic blocks over SDTI, four 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.
7 Auxiliary data 7.1 General Auxiliary data packet may be used to map time code data (VITC). If present, the mapping shall comply with the following parameters. 7.2 Location of auxiliary data Auxiliary data shall be located in the H-ANC space immediately following the extended data packet. The vertical 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 291M.