User`s guide

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3: System Configuration
Configuring the VTR Daemon (vtrd)
The /usr/vtr/config/vtrd.conf file specifies information that controls the VTR
daemon process (vtrd). The daemon process is the parent for all instances of the vvtr
child process, the process executing for video operations. For more information about the
vtrd.conf file format, see the vtrd(1) man page.
Mapping Physical Ports to Logical Port Names
You can use the /usr/vtr/ports.conf file to create logical names for the physical
video ports on the SGI Media Server. For each port, include a line in the configuration file
with the following syntax:
port physicalname logicalname description
For example:
port MFCODEC_0 POTUS "WHITEHOUSE OVAL OFFICE, POTUS"
port MFCODEC_1 MAINEB "1ST AND MAIN, Eastbound"
port MFCODEC_5 RJM "RIJKSMUSEUM"
port MFCODEC_6 MPEG2 “MPEG RECORDING, CAMERA 1”
port MFCODEC_7 DVC50 “DVCPRO50 RECORDING, CAMERA 2”
The description field must be enclosed by quotation marks if it contains spaces. The
physical port name MFCODEC_n references the underlying hardware. One physical port
name is assigned to each installed PCI-VIDAUD-MSB codec. The physical port name is
fixed at the factory. The logical port name POTUS may be used for unit creation and other
unit-specific operations, such as changing control values using the mcpanel or mcstat
command.
Configuring for 625/50 Systems
You can configure the SGI Media Server to supports either 525/59.94 or 625/50
operation. A few operating characteristics default to 525/59.94, including the MVCP
timing mode. Refer to the MVCP FRAT command documentation in the mvcp(5) man
page.
To change the default timing, include the following control setting in the system defaults
file /usr/vtr/config/system-defaults/main: