7800/7700 MultiFrame Manual
7814 Series Dual HDTV Up/Down/Cross Converters
Revision 1.1.3 Page - 63
14:9 Letterbox on 4:3 to 14.9 Side Panel
14.9 Letterbox on 4.3 to 16.9 Stretch on 16.9
4.3 Side Panel on 16.9 to 4:3
14.9 Side Panel to 14.9 Letter Box on 4:3
14.9 Side Panel to 4:3 Side Cut on 4:3
14.9 Side Panel to 4.3 Squeeze on 4.3
7.10.2.2. User Aspect Ratio Setting
There are four registers for each input video standard that set the portion of the input picture that will be
converted. These register settings do not have any effect when the pre-defined aspect ratios are used.
Input H Start/ Input H Stop:
The Input H Start and Input H Stop define the horizontal portion of the
input image to process to the output raster.
Input V Start/ Input V Stop:
The Input V Start and Input V Stop define the vertical portion of the
input image to process to the output raster.
There are four registers for each output video standard that define the size of the output image and how
to place the resulting image on the output video raster.
Output H Start/ Output H Stop:
The Output H Start and Output H Stop define how to scale the
cropped input image horizontally and where to place it horizontally
on the output raster. The image will be stretched to fill the width.
(I.e. For 1080i the range of values are 0 to 1919. The range of
values for 720p output is 0 to 1279).
Output V Start/ Output V Stop:
The Output V Start and Output V Stop define how to scale the
cropped input image vertically and where to place it vertically on the
output raster. The image will be stretched to fill the height. (E.g.
For 1080i, the range of values are 0 to 539. The range of values for
720p output is 0 to 719).
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