Networked VGA Grid User Guide
Configure encoding (HD Encoder channels)
For example:
l
if the input signal resolution is 1920×1080 (a 16:9 aspect ratio)
l
and stream frame size is set to another 16:9 frame size such as 1280×720,
the smaller stream frame size causes the system to downscale the image and use less bandwidth to
transmit.
Or if you have a widescreen/HD format source but need a 4:3 output frame size, you can add black bars to
the top and bottom of the frame.
To enable the DVI source and set a frame size, complete these steps in the VGA Grid's Admin panel:
1. Login to the Admin panel as
admin
.
2. Click the
Encoding
link for your HD Encoder channel; the stream configuration page opens.
3. Scroll to the DVI Channel section.
4. Check the
Enable DVI channel
checkbox; the DVI settings section expands.
5. Set the
Frame size
values to reflect the dimensions required for your stream. Some suggested values
cover popular resolutions of cameras and display devices such as monitors, but you may also specify
something custom:
a. Type a frame size in the field.; or
b. Select an option from the sizes shown, the dimensions will appear in the frame size field.
Scaling occurs automatically (no extra configuration needed) when you make the
dimensions larger, smaller, or a different aspect ratio than the source.
6. Check the
Keep aspect ratio
checkbox if you want to ensure your source is not stretched. Without
this checkbox selected, your source will be stretched to fit the selected stream aspect ratio.
When
keep aspect ratio
is enabled, if your source and stream aspect ratios differ, your
source is centered in the frame and matte bars are added to the top and bottom or left and
right sides to make up the difference. See
Remove black bars (matte) from the video
.
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