PulseAudio Configuration

pulse.sh

#!/bin/bash -x

export PULSE_SERVER=127.0.0.1
DEFAULT_COOKIE="/etc/pulse/default_cookie"
SOUNDCHECK="/usr/share/sounds/alsa/Front_Center.wav"

# see: http://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/User/Modules#module-native-protocol-.7Bunix.2Ctcp.7D
COOKIE_CONFIG="auth-anonymous=0 auth-cookie-enabled=1 \
 auth-cookie=${DEFAULT_COOKIE}"
# COOKIE_CONFIG="${COOKIE_CONFIG} auth-ip-acl=127.0.0.0/8;192.168.0.0/24"

configure_libao() {
    CONF="/etc/libao.conf"
    if ! [ -f "$CONF" ]; then
        echo 'default_driver=pulse' > $CONF
        echo 'quiet' >> $CONF
    else
        sed -i 's/default_driver=.*/default_driver=pulse/g' $CONF
    fi
}

new_cookie() {
    DEST=${1:-$DEFAULT_COOKIE}
    if [ -f "$DEST" ]; then
        echo "Error: '$DEST' exists."
    else
        dd if=/dev/urandom of="$DEST" bs=256 count=1
    fi
}

install_client() {
    apt-get install -y pulseaudio pulseaudio-utils paman paprefs pavucontrol
    configure_libao
    echo 'If pulseaudio was not already installed, you may need to'
    echo 'log out and log back in again.'
}

install_server() {
    apt-get install -y pulseaudio
    CONF="/etc/pulse/default.pa"
    SYSCONF="/etc/pulse/system.pa"
    DEFAULT="/etc/default/pulseaudio"
    sed -i 's/PULSEAUDIO_SYSTEM_START=0/PULSEAUDIO_SYSTEM_START=1/g' "$DEFAULT"
    sed -i 's/DISALLOW_MODULE_LOADING=0/DISALLOW_MODULE_LOADING=1/g' "$DEFAULT"

    sed -i "s/#load-module module-native-protocol-tcp/load-module module-native-protocol-tcp $COOKIE_CONFIG/g" "$CONF"
    sed -i "s/#load-module module-rtp-recv/load-module module-rtp-recv/g" "$CONF"

    sed -i "s/load-module module-native-protocol.*/load-module module-native-protocol-tcp $COOKIE_CONFIG/g" $SYSCONF || \
        echo "load-module module-native-protocol-tcp $COOKIE_CONFIG" >> $SYSCONF

    /etc/init.d/pulseaudio start
    /etc/init.d/pulseaudio restart
}


start() {
    pax11publish -e -r
    pulseaudio --start --log-target=syslog
    pacmd load-module module-native-protocol-tcp
    pacmd load-module module-device-manager
    pax11publish -e -S $PULSE_SERVER
    status
    pacat "$SOUNDCHECK"
    pavucontrol 2>&1 &
}

stop() {
    pax11publish -e -r
    sleep 1
    pulseaudio -k
    sleep 2
    status
}

status(){
    ps aufx | grep pulse
}

case "$1" in
    server) install_server ;;
    client) install_client ;;
    new_cookie) new_cookie $2 ;;
    push_cookie) scp "$DEFAULT_COOKIE" "$2" ;;
    start) start ;;
    status) status ;;
    stop) stop ;;
    restart)  status; stop; start; status ;;
    *) echo "usage: $0 <server|client|new_cookie|push_cookie|start|status|stop>" ;;
esac