IQMDMO
SECTION 40b
IQMDMOOPS 150403 Version 1 Issue 2
40b.14
VIDEO
This function allows various settings to be applied
to the video signal.
Chroma filtering
The type of filtering used for upsampling the
chrominance from 4:2:0 to 4:2:2 (for MP@ML
streams) may be selected from the following;
•
Field based
-The chrominance upsampling is
carried out on a field basis.
•
Frame based
-The chrominance upsampling
is carried out on a frame basis.
•
Auto
-The type of chrominance upsampling is
automatically selected from
‘
chroma_420_type’
from the picture coding
extension, as recommended by ‘ETR 154’.
Test mode
This function allows the line standard and the type
of test pattern to be selected.
•
Force freeze
-When this function is selected
the output picture will become frozen.
•
Force 625 pattern
-The output video test
pattern will be the 625 line
•
Force 525 pattern
-The output video test
pattern will be the 525 line
•
Auto freeze
-When this function is enabled the
output picture will become frozen if the input
signal is lost.
•
Auto pattern
-When this function is enabled
the output picture will become the selected test
pattern if the input signal is lost.
Pattern type
The type of pattern may be either
•
Black
•
EBU Color Bars
Clipping limits
•
Luma Clip Hi/Lo
-The luminance high and low
clipping limits can be set here.
•
Chroma Clip Hi/Lo
-The chrominance high
and low clipping limits can be set here.
•
Rec.601 nominal ranges
-Pressing this button
will ‘preset’ the clipping limits to their Rec.601
nominal range values.
Teletext Insertion
The unit is able to insert Teletext into the VBI of the
output SDI video when Teletext data is available in
the selected input stream in accordance with the
DVB standard EN 300 472.
The embedding of the Teletext data into the output
VBI is in accordance with ETS 300 706.
✖
Enable -
When selected the Teletext data will
be inserted into the output VBI when available.
