i3 volume control

mixer.sh

#!/bin/bash
STEPS=10
STEP=$((65536/$STEPS))
SINK=1
MAXVOL=65536
STATE_FILE=.mute
ICON_NAME=""
MUTED=""
getMasterVolume ()
{
  pacmd list-sinks | awk 'BEGIN{i=1} /^[[:space:]]*volume:[[:space:]]*/ {if (i==2) { printf("%d",$3)} ;i=i+1}'
}


setMasterVolume () {
  pacmd set-sink-volume $SINK $1 > /dev/null
  osd
}


volumeUp ()
{
    NEWVOL=$(($(getMasterVolume)*655 + $STEP))
    [[ $NEWVOL -gt $MAXVOL ]] && NEWVOL=65536
    setMasterVolume $NEWVOL
}


volumeDown ()
{
    NEWVOL=$(($(getMasterVolume)*655 - $STEP))
    [[ $NEWVOL -lt 0 ]] && NEWVOL=0
    setMasterVolume $NEWVOL
}


mute () {
  # [[ -e $STATE_FILE ]] && rm -f $STATE_FILE;
  echo $(getMasterVolume) > $STATE_FILE;
  pacmd set-sink-mute $SINK 1 > /dev/null
  # volume=$(getMasterVolume)
  # notify-send "Muted" -t 950 -i notification-audio-volume-muted -h int:value:$volume
  MUTED=1
  osd
}
unmute () {
  pacmd set-sink-mute $SINK 0 > /dev/null
  # VOL=0
  # [[ -e $STATE_FILE ]] &&
  VOL=$(cat $STATE_FILE)
  rm -f $STATE_FILE;
  # echo $VOL
  # [[ VOL -gt 0 ]] && VOL=$(getMasterVolume)
  # echo "restored" + $VOL
  setMasterVolume $VOL
  # volume=$(getMasterVolume)
  # notify-send "Volume" -t 950 -i notification-audio-volume-medium -h int:value:$volume
}
state() {
  pacmd list-sinks | awk 'BEGIN{i=1} /^[[:space:]]*muted:[[:space:]]*/ {if (i==2) { printf("%s",$2)} ;i=i+1}'
}

# Main Interface
up () { volumeUp; }
down () { volumeDown; }
toggle () {
  STATE=$(state)
  [[ $STATE = "yes" ]] && unmute || mute;
  # && rm -f $STATE_FILE;
  echo $(state);
}
get () { getMasterVolume; }
set () { setMasterVolume $1; }
osd ()
{
    volume=$(getMasterVolume)
    if [ "$ICON_NAME" = "" ]; then
      if [ "$volume" = "0" ]; then
          ICON_NAME="notification-audio-volume-off"
      else
        if [ "$volume" -lt "33" ]; then
              ICON_NAME="notification-audio-volume-low"
        else
          if [ "$volume" -lt "67" ]; then
            ICON_NAME="notification-audio-volume-medium"
            else
              ICON_NAME="notification-audio-volume-high"
            fi
        fi
      fi
    fi
    [[ $MUTED = 1 ]] && ICON_NAME="notification-audio-volume-muted";
    echo $MUTED
    notify-send "Volume $volume" -t 1 -i $ICON_NAME -h int:value:$volume -h string:synchronous:volume
    # echo $volume;
}
getconky(){ [[ -e $STATE_FILE ]] && printf "%-3s" get || echo "  x";}
$@