Nevion ARC-SD-DMUX - Manual (Page 13)

ARC-SD-DMUX Rev. B
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There are a few states where the input picture has both horizontal and vertical curtains and
these also have arrows within the same column. These are conversions that will be
performed when the input environment is the same as the output environment.
3.5.1.5 Fill mode conversions
If the module can not find any fill factor information but has aspect ratio information, it will
perform one of three conversions when the input environment is different to the output
environment.
1. Protect input frame.
2. Zoom to fill frame.
3. Zoom to 14:9.
The table shows the conversions that will be performed when this mode is active.
Output
Environment
Non-AFD Conversion
Input
environment
Conversion performed
16:9 Any. 16:9
16:9 Protect input frame 4:3
16:9 Zoom to fill frame 4:3
16:9 14:9 4:3
4:3 Any. 4:3
4:3 Protect input frame 16:9
4:3 Zoom to fill frame 16:9
4:3 14:9 16:9
3.5.1.6 Default scaling mode
This mode is used when no information about the input video is detected by the ARC-SD-
DMUX. This mode uses the fixed scaling setting. The scaling and offset of the output
picture is fixed.