#!/bin/sh
#
# Script to automate start of multicast vat from 2nd Int. WWW Conf. (Chicago)
# October 1994, RPC Rodgers, NLM
#
# Define variables
#
# Multicast group address
multi_grp_add=224.2.132.174
# Conference title
title="2nd Int. WWW Conf. (Chicago)"
# Audio variables
audio_port=49180
audio_conf_id=31795
# Default (used if audio_format is empty) is pcm; use dvi4 to reduce bandwidth
audio_format=""
audio_time_to_live=127
#
vat="/home/webconf/bin/vat"
#
# Find out if this script is running in a scrolling window
#
date_string="`date`"
file_string="`echo $date_string | sed -e 's
^... ... \([0-9 ][0-9]\) \([0-9 ][0-9]:[0-9][0-9]:[0-9][0-9]\).*
\1_\2
'`"
file="MULTICAST${file_string}.log"
echo "Multicasting for: $title
Started: $date_string
"
#
# Start multicasting vat
#
echo "Starting multicast audio tool (vat)"
$vat -C "$title" \
    -k \
    -N "$title" \
    -n \
    -S \
    ${multi_grp_add}/${audio_port}/${audio_conf_id}/${audio_format}/${audio_time_to_live} \
    | tee $file &
#
# Print further instructions
#
echo "
IMPORTANT:

1) Remember to save the participant list *prior* to exiting vat.  Do this
   by typing the letter \"l\" while the cursor is positioned within the
   vat window.  This will cause the list to be written into this window
   AND into a file.

2) *DO NOT* type \"q\", \"Q\", \"Ctrl-C\" or \"Ctrl-D\" while the cursor
   is positioned witin the vat or nv windows; this will abort these
   applications!

GOOD LUCK..." 
#
# end of script