Sopcast

#!/bin/sh
# Start streaming sopcast address $1 with sp-sc-auth, then start VLC and monitor both processes.
# Author: Chickamade <anh.chick@gmail.com>

if ! test $# -eq 1
then
    echo 'Usage: sopcast <sop://address>'
    exit 0
fi

if pgrep -f "sp-sc-auth $1"
then
    echo sopcast: channel $1 already streaming, quitting >&2
    exit 0
fi

PORT=${1##*/}

while [ $PORT -gt 60000 ]; do
    PORT=$((PORT-10000))
    # echo $PORT
done


echo sopcast: starting stream $1 on port $PORT >&2
sp-sc-auth "$1" 3908 $PORT >/dev/null &
SP_SC=`pgrep -f "sp-sc-auth $1 3908 $PORT"`
if test -z $SP_SC
then
    echo sopcast: stream $1 failed to start >&2
    exit 1
fi

sleep 3

vlc http://localhost:$PORT/tv.asf >/dev/null 2>&1 &
VLC=`pgrep -f "vlc http://localhost:$PORT/tv.asf"`
if test -z $VLC
then
    echo sopcast: VLC failed to start >&2
    kill -9 $SP_SC
    exit 1
fi

while true
do
    if ! ps $SP_SC > /dev/null
    then
        echo sopcast: stream $1 died, killing VLC >&2
        kill $VLC
        exit 1
    fi
    if ! ps $VLC > /dev/null
    then
        echo sopcast: VLC not running, killing stream $1 >&2
        kill -9 $SP_SC
        exit 0
    fi
    sleep 10
done
exit 0