switchaudio.sh

#!/bin/bash

# switches the default audio output device for pulse audio, and any applications currently using it to the next available one.

tmpfile=/tmp/pasink.tmp

function getNextSink {

        sinks=`pacmd list-sinks |sed 's/*//' |awk '/[*]|index:/{print $2}' >${tmpfile}`
        sink_array=( `cat "${tmpfile}" `)

        tot_sinks=${#sinks_array[@]}
        active_sink=`pacmd list-sinks |awk '/* index:/{print $3}'`

        array_index=${!sink_array[@]}

        for each in ${array_index}
        do
                if [ ${sink_array[$each]} -eq ${active_sink} ]
                then
                        active_sink_pos=${each}
                fi

                last_sink_pos=${each}
        done

        count=0

        if [ $active_sink_pos -eq $last_sink_pos ]
        then
                next_sink_pos=0
        else
                let next_sink_pos=${active_sink_pos}+1
        fi

        next_sink=${sink_array[${next_sink_pos}]}

}

function getSinkInputs {

        inputs=`pacmd list-sink-inputs |sed 's/*//' |awk '/[*]|index:/{print $2}' >${tmpfile}`
        input_array=`cat $tmpfile`

}

function setDefaultSink {

        pacmd set-default-sink ${next_sink} 2>&1 >/dev/null

}

function moveSinkInput {

for each in ${input_array}
do
        pacmd move-sink-input ${each} ${next_sink} 2>&1 >/dev/null
done

}


case "$*" in
        --get-sink-inputs)
                        getSinkInputs
        ;;
        --move-sink-inputs)
                        getNextSink
                        getSinkInputs
                        moveSinkInput
        ;;
        --set-default-sink)
                        getNextSink
                        setDefaultSink
        ;;
        --next)
                        getNextSink
                        setDefaultSink
                        getSinkInputs
                        moveSinkInput
        ;;
esac