ADV611_15 Datasheet, PDF (26/46 Pages) Analog Devices – Closed Circuit TV Digital Video Codec

ADV611/ADV612
In general, a Frame of data is made up of odd and even Fields
as shown in Figure 13. Each Field Sequence is made up of a
First Block Sequence and a Complete Block Sequence. The
First Block Sequence is separate from the Complete Block Se-
quence. The Complete Block Sequence contains the remaining
41 Block Sequences (see block numbering in Figure 14). Each
Block Sequence contains a start of block delimiter, Bin Width
for the block and actual encoder data for the block. A pseudo
code bitstream example for one complete field of video is shown in
Table XIII. A pseudo code bitstream example for one sequence
of fields is shown in Table XIV. An example listing of a field
of video in ADV611/ADV612 bitstream format appears in
Table XVII.
39 33 ₂₄
36 30
15
27
21
18
12
Y COMPONENT
6
0
9
3
40 34
37 31
25
16
28 22
19
13
10
Cb COMPONENT
7
1
4
41 35
38 32
26
17
29 23
20
14
11
Cr COMPONENT
8
2
5
Figure 14. Block Order of Wavelet Compressed Field Data (Modified Mallat Diagram)
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