GUIDE TO INSTALLATION AND OPERATION
XVP-3901 |
37
Figure 5.22
Screens for SD output
You can configure the AFD mode differently for an SD input than for a 3G/HD input. The card will remember the
different parameters and will load them automatically without user intervention based on whether the video input is SD
or 3G/HD. Ensure the card has a video signal of the desired format before changing the AFD mode configuration.
Note 1 – Auto mode:
When Auto is selected, all the ARC values are automatically set based on the AFD flag
detected at the input, and the ARC controls and presets described below are
disabled
. Annex 2 shows the AFD
functions implemented. If no AFD flag is detected at the input, the card uses the Default AFD flag specified in the
AFD tab
Note 2 – Forced mode:
Forced mode is useful when the input AFD flag is unreliable, missing or if the user wants a
simple way to force the aspect ratio conversion. The function is the same as the Auto mode, except that the
incoming AFD flag is ignored, and a user-specified forced flag is used instead. As in the Auto mode, the ARC
controls and presets described below are
disabled
.
The input screen shows how much of the input signal will appear at the output after the ARC processing in the XVP-
3901. It does so by showing any cropped portions of the image in blue.
The Output Screen
The output screen shows the final result of the ARC processing.
•
The letterbox is shown in the selected background color
•
The masks are shown in Gray
A pull-down menu at the top of the screen allows the user to select the output aspect ratio:
•
either
4:3
or
16:9
.
•
The output format is shown at the bottom of the window (720x484i in 59.94 Hz or 720x576i in 50 Hz)
5.5.1 ARC
tab
Under the
ARC
tab, several sub-sections are found allowing
extended control over how the output will be displayed. For
convenience, ARC presets are available for frequently-
encountered aspect ratio conversions.
•
These controls are disabled when the ARC Mode
pulldown on the Input Screen is set to
Auto
or
Forced
You can configure the ARC parameters differently for an SD
input than for a 3G/HD input. The card will remember the
different parameters and will load them automatically without
user intervention depending if the video input is SD or
3G/HD. Ensure the card has a video signal of the desired
format before changing the configuration.
Figure 5.23
Video Outputs SD – ARC tab