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Figure 3-9
shows different applications of AFD insertion and decoding.
(No AFD)
HD/SD-SDI
HD/SD-SDI
( AFD in VANC )
-
SD SDI (WSS/VI)
HD-SDI (AFD in VANC)
Figure 3-9 AFD Block Diagram
The AFD feature includes SD-SDI and HD-SDI configurations.
describes the SD-SDI AFD configurations;
AFD configurations.
AFD, VI, and WSS-Based Aspect Ratio Control
When you set the ARC Control parameter to follow the aspect ratio codes (AFD,
AFD-ALTR, AFD-Custom Map, VI, VI-ALTR, VI-Custom Map, WSS, WSS-ALTR, and
WSS-Custom Map), the aspect ratio control is based on input AFD, VI, or WSS code.
AFD-Custom Map, VI-Custom Map, and WSS-Custom Map make it possible for you to
perform automatic aspect ratio conversions based on the custom defined mapping table.
The other options set the ARC to an existing standard. When the input code is missing, the
ARC behavior is defined by Loss of AFD ARC, Loss of VI ARC or Loss of WSS ARC. Only
one of these options is be enabled at any one time.
Though they are not widely used, some AFD, VI or WSS codes recommend cropping part of
the image. When this type of cropping is enabled, the X100 will take longer to change ARC
modes. To create faster ARC transitions, you can disable the cropping using the AFD Crop
Enable parameter in ARC Control.
When the ARC is based on AFD, VI, or WSS, and the output standard is SD-SDI, you must
set the SD Out Aspect Ratio (either 4:3 or 16:9) to ensure you use the correct mapping
table.
Insertion of AFD
Selenio X100
Detection and signaling of ARC
Selenio X100
Selenio X100
Selenio X100
Figure 3-12
Selenio X100
Installation and Operation Manual
HD/SD-SDI (AFD in VANC)
HD/SD-SDI (AFD in VANC)
HD-SDI (AFD in VANC)
SD-SDI (WSS/VI)
Figure 3-11
on page 49
on page 50 describes the HD-SDI
47
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