Show music info(with cover) for mpd. Will show gray cover, when paused

mpd-notifications

#!/bin/bash

expireTime="3200"
mpddir="$HOME/Music/"                                                                               
defaultimage="$HOME/music.png"                                                                 

update_cover() {
  path=$mpddir$(mpc -f %file% current)
  album=$(mpc -f %file% current)
  ffmpeg -loglevel quiet -y -i "$path" /tmp/cover
  if [[ $? -ne 0 ]] ; then
      covers="$(find "$(dirname "$path")" -type d -exec find {} -maxdepth 1 -type f -iregex ".*/.*\(${album}\|cover\|folder\|artwork\|front\).*[.]\(jpe?g\)" \; )"      
      src="$(echo -n "$covers" | head -n1)"                                                      
      if [[ -f $src ]] ; then                                                                    
        /bin/cp "$src" /tmp/cover                                                            
      else                                                                                       
        cp "$defaultimage" /tmp/cover                        
      fi                                                                                         
  fi
}

while true; do
  mpc -q || exit 1
  [[ $(mpc idle) = "player" ]] || continue
  pkill -SIGRTMIN+2 i3blocks

  update_cover
  length=$(mpc status | sed '2!D ; s/\[.*  //')
  status=$(mpc status | grep -o '\[.*\]' | tr -d "[]")
  title=$(mpc status -f "[[<b>%title%</b>]|[%file%]]\n \n[<i>By</i>: %Artist%\n][<i>Fr</i>: %Album%\n]" | head -n -3)
  category="mpd";
  if [[ ${status} = "paused" ]]; then
    category="mpd-paused"
    convert "/tmp/cover" -colorspace Gray "/tmp/cover"
  fi
  notify-send --expire-time="${expireTime}" -c ${category} -i "/tmp/cover" "MPD" \
              "$(echo "${title}\n""<i>Status</i>: ${length}";)"
done;