Linux Spotify Ad Mute

mute_spotify_ads.sh

#!/usr/bin/env bash

ADMUTE=0
PAUSED=0

get_pactl_nr(){
    pactl list | grep -E '(^Sink Input)|(media.name = \"Spotify\"$)' | cut -d \# -f2 \
    | grep -v Spotify
}

# Find window id
WM_ID=$(xdotool search --class "spotify" | sed -n 2p)

xprop -spy -id "$WM_ID" WM_NAME |
while read -r XPROPOUTPUT; do
    XPROP_TRACKDATA="$(echo "$XPROPOUTPUT" | cut -d \" -f 2 )"
    DBUS_TRACKDATA="$(dbus-send --print-reply --dest=org.mpris.MediaPlayer2.spotify /org/mpris/MediaPlayer2 \
    org.freedesktop.DBus.Properties.Get string:'org.mpris.MediaPlayer2.Player' string:'Metadata' | grep xesam:title -A 1 | grep variant | cut -d \" -f 2)"

    echo "XPROP:    $XPROP_TRACKDATA"
    echo "DBUS:     $DBUS_TRACKDATA"

    if [[ "$DBUS_TRACKDATA" = "Advertisement" ]]
      then
          echo "--PAUSED--"
          PAUSED="1"
      else
          PAUSED=0
          echo "--NOTPAUSED--"
    fi

    if [[ "$PAUSED" = 0 ]]
      then
          # || "$XPROP_TRACKDATA" =~ "$DBUS_TRACKDATA" ]]
          echo "--NOAD--"
          echo "ADMUTE: $ADMUTE"
      echo "PAUSED: $PAUSED"
          if [[ "$ADMUTE" = "1" ]]
            then
                sleep 0.5
                for PACTLNR in $(get_pactl_nr); do
                    pactl set-sink-input-mute "$PACTLNR" no > /dev/null 2>&1
                    echo "Unmuting sink $PACTLNR"
                done
          fi
          ADMUTE=0
      else
          echo "--AD--"
          echo "ADMUTE: $ADMUTE"
          echo "PAUSED: $PAUSED"
          if [[ "$ADMUTE" != "1" ]]
            then
                for PACTLNR in $(get_pactl_nr); do
                    pactl set-sink-input-mute "$PACTLNR" yes > /dev/null 2>&1
                    echo "Muting sink $PACTLNR"
                done
          fi
          ADMUTE="1"
    fi
done

echo "Spotify not active. Exiting."
exit 0

Based on https://gist.github.com/pcworld/3198763#gistcomment-2950338