Cadence/data/cadence-pulse2jack

#! /usr/bin/env bash
# Script to bridge/start pulseaudio into JACK mode

INSTALL_PREFIX="X-PREFIX-X"

PULSE_CONFIG_DIR=${PULSE_CONFIG_DIR:-"$HOME/.pulse"}
JACK_CONNFILE="$PULSE_CONFIG_DIR/jack-connections"
PA_CTLFILE="$PULSE_CONFIG_DIR/ctl.pa"

# ----------------------------------------------

if [ ! -d $PULSE_CONFIG_DIR ]; then
    mkdir -p $PULSE_CONFIG_DIR
fi

if [ ! -f $PULSE_CONFIG_DIR/client.conf ]; then
    echo "autospawn = no" > $PULSE_CONFIG_DIR/client.conf
else
    if (! cat $PULSE_CONFIG_DIR/client.conf | grep "autospawn = no" > /dev/null); then
        sed -i '/autospawn =/d' $PULSE_CONFIG_DIR/client.conf
        echo "autospawn = no" >> $PULSE_CONFIG_DIR/client.conf
    fi
fi

if [ ! -f $PULSE_CONFIG_DIR/daemon.conf ]; then
    echo "default-sample-format = float32le" > $PULSE_CONFIG_DIR/daemon.conf
    echo "realtime-scheduling = yes" >> $PULSE_CONFIG_DIR/daemon.conf
    echo "rlimit-rttime = -1" >> $PULSE_CONFIG_DIR/daemon.conf
    echo "exit-idle-time = -1" >> $PULSE_CONFIG_DIR/daemon.conf
else
    if (! cat $PULSE_CONFIG_DIR/daemon.conf | grep "default-sample-format = float32le" > /dev/null); then
        sed -i '/default-sample-format = /d' $PULSE_CONFIG_DIR/daemon.conf
        echo "default-sample-format = float32le" >> $PULSE_CONFIG_DIR/daemon.conf
    fi
    if (! cat $PULSE_CONFIG_DIR/daemon.conf | grep "realtime-scheduling = yes" > /dev/null); then
        sed -i '/realtime-scheduling = /d' $PULSE_CONFIG_DIR/daemon.conf
        echo "realtime-scheduling = yes" >> $PULSE_CONFIG_DIR/daemon.conf
    fi
    if (! cat $PULSE_CONFIG_DIR/daemon.conf | grep "rlimit-rttime = -1" > /dev/null); then
        sed -i '/rlimit-rttime =/d' $PULSE_CONFIG_DIR/daemon.conf
        echo "rlimit-rttime = -1" >> $PULSE_CONFIG_DIR/daemon.conf
    fi
    if (! cat $PULSE_CONFIG_DIR/daemon.conf | grep "exit-idle-time = -1" > /dev/null); then
        sed -i '/exit-idle-time =/d' $PULSE_CONFIG_DIR/daemon.conf
        echo "exit-idle-time = -1" >> $PULSE_CONFIG_DIR/daemon.conf
    fi
fi

# ----------------------------------------------

PLAY_ONLY="no"

case $1 in
    -h|--h|--help)
echo "usage: $0 [command]

  -p, --play    Playback mode only

  -h, --help    Show this help menu
      --dummy   Don't do anything, just create the needed files

NOTE:
 When ran with no arguments, pulse2jack will
 activate PulseAudio with both playback and record modes.
"
exit
    ;;

    --dummy)
exit
    ;;

    -p|--p|--play)
PLAY_ONLY="yes"
    ;;

    *)
    ;;
esac

TEMPLATE_PA_FILE=$INSTALL_PREFIX/share/cadence/pulse2jack/template.pa

# ----------------------------------------------

addJackConnectionsToPAFile() {
    PAFILE=$1
    OUTFILE=$2
    cp $PAFILE $OUTFILE
    tac $JACK_CONNFILE | while IFS=\| read name type channels connect; do
        sed -i "/### Load Jack modules/a load-module module-jack-$type channels=$channels connect=$connect client_name=\"$name\"" $OUTFILE
    done
}

loadConnectionsIntoPA() {
    CONNTYPE=$1
    while IFS=\| read name type channels connect; do
        if [ $CONNTYPE == "$type" ] ; then
            pactl load-module module-jack-$type channels=$channels connect=$connect client_name="$name" > /dev/null
        fi
    done < $JACK_CONNFILE
}

addDefaultSink() {
    INFILE=$1
    sed -i "/### Make Jack default/a set-default-sink jack_out" $INFILE
}

addDefaultSource() {
    INFILE=$1
    sed -i "/### Make Jack default/a set-default-source jack_in" $INFILE
}

if [ ! -f $PULSE_CONFIG_DIR/jack-connections ] ; then
    # safety in case there's no config generated yet from GUI
    sed "/### Load Jack modules/a load-module module-jack-sink
       /### Load Jack modules/a load-module module-jack-source" $TEMPLATE_PA_FILE > $PA_CTLFILE
else
    addJackConnectionsToPAFile $TEMPLATE_PA_FILE $PA_CTLFILE
fi

addDefaultSource $PA_CTLFILE
addDefaultSink $PA_CTLFILE

IsPulseAudioRunning()
{
    PROCESS=`ps -u $USER | grep pulseaudio`
    if [ "$PROCESS" == "" ]; then
        false
    else
        true
    fi
}

if (IsPulseAudioRunning); then
{

    if (`jack_lsp | grep "PulseAudio JACK Sink:" > /dev/null`); then
    {
        echo "PulseAudio is already running and bridged to JACK"
    }
    else
    {
        echo "PulseAudio is already running, bridge it..."

        if [ "$PLAY_ONLY" == "yes" ]; then
        {
            loadConnectionsIntoPA "sink"
            pacmd set-default-source jack_in > /dev/null
        }
        else
        {
            loadConnectionsIntoPA "source"
            loadConnectionsIntoPA "sink"
            pacmd set-default-sink jack_out > /dev/null
            pacmd set-default-source jack_in > /dev/null
        }
        fi

        echo "Done"
    }
    fi
}
else
{
    if (`pulseaudio --daemonize --high-priority --realtime --exit-idle-time=-1 --file=$PA_CTLFILE -n`); then
        echo "Initiated PulseAudio successfully!"
    else
        echo "Failed to initialize PulseAudio!"
    fi
}
fi