Chapter 2
•
Viewing and Setting Service Parameters
80 Viewing and Setting Service Parameters
Parameters Settings
Comments
the test pattern when no encoded content
is available.
Force Test Pattern
Check this option if
you wish to
transmit a test
pattern instead of
the encoded
content.
This option enables you to 'blend out' a
section of the received content.
De-Interlacing Filter
To convert input
from interlaced to
progressive frames,
check the
associated check
box.
Available for sources connected to the
video input interfaces labeled
A
-
applicable only in MPEG-2 encoding.
We recommend using this option for
MPEG-2 streams at bit-rates lower than
3200000 bps.
Contrast
0 - 255
(the default is 128)
Adjusts the polarity between white and
black in the video signal. If white is very
distant from black, a signal has high
contrast. If white is closer to black, a signal
has low contrast causing it to appear with a
gray tone. Adjusting the contrast changes
the relation between the color steps.
Hue
0 - 255
(the default is 128)
Available for NTSC compliant inputs.
Adjusts the wavelength of the base colors
(i.e. red, green, yellow) in a video signal.
Adjusting the hue creates linear change in
the phase of all the colors.
Brightness
0 - 255
(the default is 128)
Adjusts the amount of light emitted in the
video signal.
Saturation
0 - 255
(the default is 128)
Adjusts the amount of color in the signal.
Table 21: Video Input Parameters
y
MGW x100 does not support SECAM sources.
y
Pre-processing filters are available if
Pre-Processing
is
enabled on the associated Encoding Board Parameter
page.
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