MICROTRONIX DX-4400 Series, Руководство пользователя

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DX-4400
– 3G-SDI Text & Graphics Overlay Inserter – User Manual
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Figure 12: Split Screen Display Example
3.9.3 Video Output Mode Commands
The Video Output Command is available for the PiP TI mode of operation only (and not for the LPiP TI). In this
mode, by default, the DX-4400 switches modes of the SDI Output to match the signal on SDI Input 1. It is possible
to specify a specific output format instead using the Video Output Mode command. If this is done, the input signal
will be converted to the required frame rate by dropping and repeating frames, and the inputs will be scaled to fit
the output frame size. Additionally, a progressive input will be interlaced to the match the output mode. However,
an interlaced input cannot be de-interlaced to match a progressive output. In that case the input will be
considered invalid and is not used.
When the output resolution or frame rate does not exactly match the main input, the pass-through of the ancillary
data (i.e. the embedded audio and metadata) is automatically disabled.
Table 16: Video Output Mode Command Syntax
Parameters Argument Description of Command Syntax
O
–
Set the Output video format
R=mode
Set the output Resolution where mode is one of the following:
Auto
720p
1080p
1080i
NTSC
PAL
W1080p
Automatically match the main input resolution
Set 1280x720 progressive resolution
Set 1920x1080 progressive resolution
Set 1920x1080 interlaced resolution
Set 720x480 interlaced resolution
Set 720x576 interlaced
Set 2048x1080 progressive resolution
PR=mode
Same as for
Resolution
parameter
Set a Preferred Resolution value. The preferred value may be used to set the
output mode if the R=mode parameter is set to auto and the main input signal
is not present.