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#!/bin/sh -e
# Based on:
# https://wiki.archlinux.org/title/Ncmpcpp#With_album_art
#
# mpc-notify: sends notification of currently playing MPD music accompanied
# by album cover art.
#
# Dependencies:
# mpc
# ffmpeg
# notify-send
# and my other script, notify-replace.
# recommended: a home directory setup with xdg-user-dirs (for finding your
# music directory)
#
# For getting notifications on media keys:
# Bind media key to calls to mpc-notify instead of mpc or other media
# controllers.
# For getting notifications on song change, add:
# execute_on_song_change = "mpc-notify"
# to your ncmpcpp's configuration file.
# exit early if we're in tty
if [ -z "$WAYLAND_DISPLAY" ] && [ -z "$DISPLAY" ]; then
exit 2
fi
# globals
command="$1"
use_preview=0
# defaults
# FEATURE: make defaults configurable through flags
preview_dir="${XDG_CONFIG_HOME:-$HOME/.config}/mpc/previews"
preview_width=64
preview_height=64
default_song_icon="media-playback-start"
# issue an mpc command based on arguments and assemble notification message
case "$command" in
"")
# use defaults
song_head="Now Playing"
use_preview=1
;;
"toggle")
mpc -q toggle
state="$(mpc status %state%)"
case "$state" in
"playing")
song_head="Now Playing"
use_preview=1
;;
"paused")
song_head="Paused"
song_icon="media-playback-pause"
;;
esac
;;
"shuffle")
mpc -q shuffle
song_head="Shuffled Playlist"
song_icon="media-playlist-shuffle"
;;
"single")
mpc -q single
state="$(mpc status %single%)"
case "$state" in
"on")
song_head="Single Mode: On";;
"once")
song_head="Single Mode: Once";;
"off")
song_head="Single Mode: Off";;
esac
# TODO: consider a more appropriate icon
song_icon="multimedia-player"
;;
"random")
mpc -q random
state="$(mpc status %random%)"
case "$state" in
"on")
song_head="Random Mode: On";;
"off")
song_head="Random Mode: Off";;
esac
# TODO: consider a more appropriate icon
song_icon="media-eject"
;;
"repeat")
mpc -q repeat
state="$(mpc status %repeat%)"
case "$state" in
"on")
song_head="Repeat Mode: On";;
"off")
song_head="Repeat Mode: Off";;
esac
song_icon="media-playlist-repeat"
;;
*)
mpc -q "$command"
# don't notify if mpc changed song because ncmpcpp would notify on
# song change anyway
[ "$command" = "next" ] || [ "$command" = "prev" ] && exit
;;
esac
# use album preview for song icon
if [ "$use_preview" -eq 1 ]; then
[ -d "$preview_dir" ] || mkdir -p "$preview_dir"
# find xdg music directory
# user-dirs.dirs is not guaranteed to exist
# shellcheck disable=SC1091
. "${XDG_CONFIG_HOME:-$HOME/.config}/user-dirs.dirs" 2>/dev/null || true
xdg_music_dir="${XDG_MUSIC_DIR:-$HOME/Music}"
# get preview filename
song_filename="$(mpc --format "${xdg_music_dir}/%file%" current)"
song_album_name="$(mpc --format %album% current)"
if [ -z "$song_album_name" ]; then
# fallback to the default icon for an empty album name
song_icon="$default_song_icon"
else
preview_path="${preview_dir}/$(echo "$song_album_name" | base64).png"
if [ -f "$preview_path" ]; then
# use cached preview
song_icon="$preview_path"
elif ffmpeg -y -i "$song_filename" -an -vf \
scale="${preview_width}:${preview_height}" \
"$preview_path" >/dev/null 2>&1;
then
# or use generated preview
song_icon="$preview_path"
else
song_dirname=$(dirname "$song_filename")
if art_filename="$(find "$song_dirname" -type f |
grep -Esm 1 '.*\.(jpg|png)')"
then
# or use scaled cover art from directory
ffmpeg -y -i "$art_filename" -an -vf \
scale="${preview_width}:${preview_height}" \
"$preview_path" >/dev/null 2>&1;
song_icon="$preview_path"
else
# or fallback to default icon
song_icon="$default_song_icon"
fi
fi
unset song_dirname
fi
unset preview_path
fi
unset xdg_music_dir song_filename song_album_name
# now send the actual notification
song_body="$(mpc --format '[%title%[ \n%artist% - %album%]]|[%file%]' current)"
notify-replace 'mpc-notify' "$song_head" "$song_body" -i "$song_icon" -u low
# cleanup
unset command preview_dir preview_width preview_height default_song_icon \
use_preview song_head song_body song_icon
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