882 Video Test Instrument User Guide (Rev A.35) 333
2. Using the table below, determine the proper “L” field code for bits 3-9.
3. Use the following table to determine the proper “K” field code for bits 10-16.
Letterbox/Pillar Mode
“L” Field Code
Symbol
Undo Bars BarContents Position Shrink
Bit 9 Bit 8 Bit 7
1
1. Bits 6 and 7 are used to sequence redundant AFD codes.
In the case of pixel repetition (NPPP not equal to 0), the color of the (extended) bars
on the left and right sides of the image are filled in accordance with the settings of bits
6 and 7—even when the letterbox/pillar fitting method is disabled (bit 3 = 0).
Bit 6
1
Bit 5 Bit 4 Bit 3
Disabled 0 0 0 0 0 0 0
Centered shrink w/black bars
top & bottom
0 1 0 0 0 0 1 Lcbb
Centered shrink w/gray bars
top & bottom
0 1 0 1 0 0 1 Lcgb
Centered shrink w/white bars
top & bottom
0 1 1 0 0 0 1 Lcwb
Centered protected shrink
w/shot surround
0 0 0 0 0 0 1 Lcsp
Top shrink w/single black bar at
bottom
0100011 Ltbb
Top shrink w/single gray bar at
bottom
0101011 Ltgb
Top shrink w/white bar at bot-
tom
0110011Ltwb
(Keep) Safe Area Mode
“K” Field Code
Symbol
Undo Bars BarContents Source Save Area
Bit 16 Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10
None (w/safe area markers) 0 0 0 0 0 0 0
Shrink coded frame to action area with opaque
black bar surround
0100 0 01Kabb
Shrink coded frame to action area with opaque
gray bar surround
0101 0 01Kagb
Shrink coded frame to action area with opaque
white bar surround
0110 0 01Kawb
Coded frame has shot-protected action area with-
out graticules or bars
0000 0 01Kasp
Coded frame has shot-protected action area with
action graticules without bars
0001 0 01Kaspa
Coded frame has shot-protected action area with
title graticules without bars
0010 0 01Kaspt
Coded frame has shot-protected action area with
action and title graticules without bars
0 0 1 1 0 0 1 Kaspb
Shrink coded frame to title area with opaque black
bar surround
0100 0 10Ktbb
Shrink coded frame to title area with opaque gray
bar surround
0101 0 10Ktgb
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