User`s guide

Configuring System Defaults
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• Detecting a vertical interval timecode (VITC) on line 14
• Processing the VITC value for each frame
• Accepting analog audio input using the MSB-REARPANEL-B connected to a
PCI-VIDAUD-MSB-B peripheral
Configuring System Defaults
You use VST controls in files in the /usr/vtr/config/system-defaults directory
to specify default, systemwide behavior. For example, the file main might contain the
following:
vtr.main.timing_standard 625
This line sets the default timing mode for the SGI Media Server to 625. This implies that
the SGI Media Server will only process PAL-based video signals.
If a Little Red linear timecode (LTC) processor periperhal is attached, the file
/usr/vtr/config/system-defaults/time might contain a global offset for
Little-Red LTC processing:
vtr.time.offset -27000000
See the vst-controls(5) man page for detailed information about all system controls.