IEC 62330-2 pdf download

IEC 62330-2 pdf download Helical-scan digital video cassette recording system using 12,65 mm (0,5 in) magnetic tape – Format HD-D5 – Part 2: Compression format
1 Scope
This part of IEC 62330 defines the encoding process of the HD-D5 video compression and its data format for the 1 080/59,94i system (hereinafter referred to as the 1 080i system) and the 720/59,94p system (hereinafter referred to as the 720p system).
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.
ITU-R BT.1 543, 1 280 × 720, 16 × 9 progressively-captured image format for production and international programme exchange in the 60 Hz
ITU-R BT.709, Parameter values for the HDTV standards for production and international
programme exchange
3 Acronyms
BUF Buffer memory
C Colour difference signal
C3RMB Compressed data of 3 RMBs
C(t, u) The value of the DCT coefficient at frequency (t, u)
C B /C R Colour difference signal
CC0 ~ CC2 Categories for C DCT block
Ccoef( ) C DCT CG
CG Coefficient group
CGNR CG number of one Y/C DCT coefficient block in one RMB
CGNS CG number of one Y/C DCT coefficient block in one SMB
CN C3RMB number in one RMBG
CRcoef( ) Rearranged C DCT CG
CS C DCT block number in one SMB
CY0 ~ CY3 Categories for Y DCT block
DCT Discrete cosine transform
DIF Digital interface
DIF(n) DIF block numbered n
DN DIF block number
EOB “End of block” code
EOM “End of 3 RMBs” code
exnor Logical exclusive nor
f( ) Offset value table for SMBG distribution
FCB Category flag of C B DCT block
FCB′ Category flag of C B DCT block
FCR Category flag of C R DCT block
FCR′ Category flag of C R DCT block
FFL Field number flag
FMB Category flag of the MB
FMB′ Category flag of the MB
FYa ~ FYd Category flags of the four DCT blocks (Ya ~ Yd) of the MB
FYa′ ~ FYd′ Category flags of the four DCT blocks (Ya ~ Yd) of the MB
H The horizontal SMB position number in one video field (1 080i system) or one video frame (720p system)
HR The column position number of RMB
HS The column position number of SMB in one SMBG
IDCT Inverse discrete cosine transform
int (A) Integer part of A
LEN The byte length of C3RMB
MB Macro block
mod Modulus operator
N.A. Not applicable
Offset( ) Offset value for RMB shuffling
P(r, s) The value of the pixel at the position (r, s) in Y/C DCT block
Qno Quantization number
Qstep Quantization step value
r The horizontal pixel position number in Y/C DCT block
Rg The RMBG number within the RMBs
RMB Rearranged macro block
RMBG Rearranged macro block group
Rn The number of RMB coding order in each RMBG
s The vertical pixel position number in Y/C DCT block
SA The starting address of the remainder data in buffer memory
SABM One byte data of SA (two bytes)
Sg The SMBG number in one video field (1 080i system) or one video frame (720p system)
SMB Super macro block
SMBG Super macro block group
t The horizontal frequency number in Y/C DCT coefficient block
TableCY0 ~ 3 Set up value tables for Y weighting function
TableCC0 ~ 2 Set up value tables for C weighting function
u The vertical frequency number in Y/C DCT coefficient block
V The vertical position number of SMB in one video field (1 080i system) or one
video frame (720p system)
VLC Variable length coding