pavolume.sh

#!/bin/bash

# finds the active sink for pulse audio and increments the volume. useful when you have multiple audio outputs and have a key bound to vol-up and down

osd='yes'
inc='5'
capvol='no'
maxvol='200'
tmpfile='/tmp/pasink.tmp'
autosync='yes'

active_sink=`pacmd list-sinks |awk '/* index:/{print $3}'`
limit=$(expr 100 - ${inc})
maxlimit=$(expr ${maxvol} - ${inc})

function volUp {

        preVol=`pacmd list-sinks |grep -A 15 'index: '${active_sink}'' |awk '/volume: 0:/{ print $3}'|sed s/.$//`

        if [ ${capvol} = 'yes' ]
        then
                if [ ${preVol} -le 100 -a ${preVol} -ge ${limit} ]
                then
                        pactl set-sink-volume ${active_sink} -- 100%
                elif [ ${preVol} -lt ${limit} ]
                then
                        pactl set-sink-volume ${active_sink} -- +${inc}%
                fi
        elif [ ${preVol} -le ${maxvol} -a ${preVol} -ge ${maxlimit} ]
        then
                pactl set-sink-volume ${active_sink} -- ${maxvol}%
        elif [ ${preVol} -lt ${maxlimit} ]
        then
                pactl set-sink-volume ${active_sink} -- +${inc}%
        fi

        curVol=`pacmd list-sinks |grep -A 15 'index: '${active_sink}'' |awk '/volume: 0:/{ print $3}'|sed s/.$//`

        if [ ${osd} = 'yes' ]
        then
                qdbus org.kde.kded /modules/kosd showVolume ${curVol} 0
        fi

        if [ ${autosync} = 'yes' ]
        then
                volSync
        fi
}

function volDown {

        pactl set-sink-volume ${active_sink} -- -${inc}%
        curVol=`pacmd list-sinks |grep -A 15 'index: '${active_sink}'' |awk '/volume: 0:/{ print $3}'|sed s/.$//`
        if [ ${osd} = 'yes' ]
        then
                qdbus org.kde.kded /modules/kosd showVolume ${curVol} 0
        fi

        if [ ${autosync} = 'yes']
        then
                volSync
        fi

}

function getSinkInputs {

        inputs=`pacmd list-sink-inputs |grep -B 4 'sink: '${1}' ' |awk '/index:/{print $2}' >${tmpfile}`
#       input_array=( `cat "${tmpfile}"` )
        input_array=`cat $tmpfile`
}

function volSync {

        getSinkInputs ${active_sink}
        curVol=`pacmd list-sinks |grep -A 15 'index: '${active_sink}'' |awk '/volume: 0:/{ print $3}'|sed s/.$//`

        for each in ${input_array}
        do
                pactl set-sink-input-volume ${each} ${curVol}%
        done

}

function volMute {

        case "$1" in
                mute)
                        pactl set-sink-mute ${active_sink} 1
                        curVol=0
                        status=1
                ;;
                unmute)
                        pactl set-sink-mute ${active_sink} 0
                        curVol=`pacmd list-sinks |grep -A 15 'index: '${active_sink}'' |awk '/volume: 0:/{ print $3}'|sed s/.$//`
                        status=0
                ;;
        esac

        if [ ${osd} = 'yes' ]
        then
                qdbus org.kde.kded /modules/kosd showVolume ${curVol} ${status}
        fi

}

function volMuteStatus {

        curStatus=`pacmd list-sinks |grep -A 15 'index: '${active_sink}'' |awk '/muted/{ print $2}'`

        if [ ${curStatus} = 'yes' ]
        then
                volMute unmute
        else
                volMute mute
        fi

}


case "$1" in
        --up)
                volUp
        ;;
        --down)
                volDown
        ;;
        --togmute)
                volMuteStatus
        ;;
        --mute)
                volMute mute
        ;;
        --unmute)
                volMute unmute
        ;;
        --sync)
                volSync
        ;;
esac