User`s guide

Configuring the SGI Media Server for Control by VDCP
007-4403-003 97
3. For each Harris Automation communications port connected to a serial port,
include a control port configuration line in the file
/usr/vtr/config/control-in.conf. See section “Control Port Configuration
Line” on page 47 for configuration instructions and examples and section “RS-232
and RS-422 Cabling” on page 99 for cabling instructions.
4. For each video port to be controlled through VDCP, include a signal port
configuration line like that described in “Control Port Configuration Line” on
page 47.
Example 7-1 shows the control-in.conf file for a configuration where VDCP is used
to control four playout codecs and two input codecs. The Harris Automation
communications ports that controls the playout codecs are connected to the SGI Media
Server serial ports 3 through 6 and control MFCODEC_2 through MFCODEC_5,
respectively. The communications ports controlling the ingest codecs are connected to
serial ports 7 and 8 and control MFCODEC_0 and MFCODEC_1, respectively. Note that
a “–” prefix denotes an input signal port. Both ingest ports use an input latency of 6
frames.
Note: The records containing the louth entries are using a legacy name required for this
specific purpose.
Example 7-1 Configuration File Specifications for VDCP Port Control
louth rs422 3 38400 1 3 29.97
louth rs422 4 38400 1 4 29.97
louth rs422 5 38400 1 5 29.97
louth rs422 6 38400 1 6 29.97
louth rs422 7 38400 1 -1 29.97 clips=path1/*
louth rs422 8 38400 1 -2 29.97 clips=path2/*
signal 1 MFCODEC_0
signal 2 MFCODEC_1
signal 3 MFCODEC_2
signal 4 MFCODEC_3
signal 5 MFCODEC_4
signal 6 MFCODEC_5
The configuration records contain an additional optional field, the clip pathname prefix.
By default, ingested clip content is placed in directory /usr/vtr/clips. The clip