FOR-A FA-9520 - About AFD (Active Format Description)

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20. About AFD (Active Format Description)
The FA-9520 can provide aspect ratio conversion according to S2016-3, RP186 VI (Video Index), or
BT1119-2 WSS (Wide Screen Signaling) AFD code data in the ancillary data of input video signals.
The below figure depicts example aspect ratio conversions using AFD code data.
AFD (Active Format
Description) having the
original aspect ratio
information of the input
video enables aspect
ratio conversion with
an optimal image
display area.
SD-SDI 4:3
HD-SDI 16:9
Full frame
Postage stamp
16:9 Letter box
Up
SD-SDI 4:3
Full frame
HD-SDI 16:9
Pillar box
SD-SDI 4:3
Postage stamp
Full frame
Down
Up
The bounding box indicates
the AFD-coded screen size.
Gray regions are picture areas that
may be cropped by the receiving
device, with no significant picture
loss for the viewer.
Black regions indicate picture
areas containing no useful image
data that is to be cropped by the
receiver as necessary.
The white region contains
important image data.