User`s guide

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3: System Configuration
latency
When the SGI Media Server receives a command, the command can apply only to the
next frame to enter the video port output queue. For example, if the video port output
queue holds three frames, the first frame that can be affected by an incoming command
is the third frame in the queue. If a stop command is received, the first two frames in the
video port output queue are displayed; the third is not displayed because it is affected by
the stop command.
You can modify the number of frames that display before a command begins by setting
the latency value. Valid values are 0 or positive integers. A value of 0 starts the
command’s effect as soon as possible, but the command latency is always greater than 0.
The minimum command latency is the sum of two values, as shown in the following:
minimum_command_latency = fixed_latency_value + 1
A small number for latency increases the risk that a frame may be missed (repeated)
because of system load. A large number increases the latency in responding to transport
commands such as play, stop, or pause.
Some commands in the Sony protocol imply a predefined frame delay; latency does not
affect these commands.
For the MVCP TCP port, make sure that the control-in.conf file includes a control
port configuration line:
mvcp tcp 5250
5250 is the standard MVCP control port number. The initial control-in.conf file
installed with the VST software includes this line.
clips=path/*
This optional field specifies the directory under /usr/vtr/clips to contain the
ingested content.
Signal Configuration Line
The signal configuration line specifies how to map signal port numbers to video port
names. A signal configuration line is required for each video port for it to be controlled