User Guide

308 Appendix E, Digital Compression
Macroblock Three types of macroblocks are available with MPEG-2:
• The 4:2:0 macroblock consists of four Y blocks, one Cb block, and one Cr block:
• The 4:2:2 macroblock consists of four Y blocks, two Cb blocks, and two Cr blocks:
• The 4:4:4 macroblock consists of four Y blocks, four Cb blocks, and four Cr blocks.
1
3 4
YCBCR
5 6
2
1
3 4
YCBCR
7
5
8
62
1
3 4
YCBCR
2 5
7 8
6 9
11 12
10