User Manual

Advanced Topics
• If the video capture workstation CPU usage is too high during web
broadcasts or if viewers of the web broadcasts notice delays and you have
determined that the delays are not caused by low Internet bandwidth. The
delays could be caused by high CPU usage on the video capture workstation
resulting in the video capture workstation not being able to process all image
data. Lossless compression increases CPU usage, so you can reduce CPU
usage during web broadcasting by reducing lossless compression.
Note: You cannot change web broadcasting compression during a web broadcast.
You must stop the broadcast, adjust the settings and then start the broadcast again.
Changes made to default web broadcast compression settings are only visible to
viewers of the web broadcast. Changing these settings does not change how the
video capture application displays, records, or prints captured images.
14 Advanced Topics
14.1 Windows command line options
You can use the following command line options to control how the Windows video
capture application starts up. You can add as many command line options as you
want in any order. All command line options must start with two dashes. Separate
command line options with spaces.
--borderless
Start the video capture application in image only mode.
You can press Esc to exit from image only mode.
--sn <sn>
To specify which frame grabber to use if more than one
frame grabber is connected to the PC. Similar to the
Capture menu Select Device command.
<sn> is the serial number of the frame grabber.
--hs <#>
Set the horizontal shift*.
67 SDI2USB 3.0 User Guide