4023074 Rev B Model D9858 Advanced Receiver Transcoder Installation and Operation Guide 4-41
Setup Menu: Services: Video, Continued
Note: Active Format Descriptor (AFD) - normally it is necessary to set both the TV
Aspect Ratio and Conversion to correctly display the video program on the TV
system. The Auto AFD option enables the transcoder output to automatically match
the display format of the video program to the TV system based on specific (uplink)
program information carried in the transport stream. In this case, the transcoder
performs the conversion based on the TV Aspect Ratio setting combined with the
program-specific uplink information to provide the “best fit” for display of the
program material on the TV. This feature is primarily used in 16:9 and 14:9 (wide
screen) applications.
WSS Mode (for future use)
WSS Status (for future use)
PV Output
Description: Indicates the output video format. This value is read-only.
Parameters: SD, HD720p or HD1080i.
Stream TV A/R Conversion Act Conv Description Image
16:9 4:3 4:3 L/B 4:3 L/B Vertically down-samples the
picture and applies black
bars at the top & bottom of
the screen.
16:9 4:3 4:3 F/H 4:3 Crop Horizontally up-samples the
centre portion of the picture
to fill the 720.
16:9 4:3 4:3 P/B None Conversion is not possible.
Picture appears tall and thin.
16:9 4:3 14:9 14:9 Compromises some up-
sampling. Some black bars
and some cropping are
visible.
16:9 4:3 16:9 F/W None Conversion is not possible.
Picture appears tall and thin.
4:3 LB
4:3 Cro
14:9
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