music: Add MPD

roles/music/templates/mpd.conf

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+# {{ ansible_managed }}
+
+user "mpd"
+group "{{ music_audio_group }}"
+
+bind_to_address "any"
+port "6600"
+max_connections "20"
+
+zeroconf_enabled "yes"
+zeroconf_name "MPD @ %h"
+
+music_directory "/srv/media/music"
+auto_update "yes"
+filesystem_charset "UTF-8"
+
+playlist_directory "/var/lib/mpd/playlists"
+db_file "/var/lib/mpd/tag_cache"
+state_file "/var/lib/mpd/state"
+sticker_file "/var/lib/mpd/sticker.sql"
+
+input {
+        plugin "curl" # Required for web streams.
+}
+
+decoder {
+        plugin  "hybrid_dsd"
+        enabled "no"
+}
+
+decoder {
+        plugin  "wildmidi"
+        enabled "no"
+}
+
+audio_output {
+       type     "pulse"
+       name     "Pulse"
+       server   "/tmp/pipewire-pulse-socket"
+}

roles/music/templates/mpd.service

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+# {{ ansible_managed }}
+
+[Unit]
+Description=Music Player Daemon
+After=network.target
+
+[Service]
+Type=simple
+ExecStartPre=/bin/mkdir -p /run/mpd
+ExecStartPre=/bin/chown -R mpd:nogroup /run/mpd
+ExecStartPre=/bin/touch /var/log/mpd.log
+ExecStartPre=/bin/chown mpd:nogroup /var/log/mpd.log
+ExecStartPre=/usr/bin/cp /var/lib/mpd/state.default /var/lib/mpd/state
+ExecStart=/usr/bin/mpd --no-daemon /etc/mpd.conf
+# MDP will fork itself to the user defined in its config
+User=root
+LimitMEMLOCK=infinity
+LimitRTPRIO=99
+
+[Install]
+WantedBy=multi-user.target

roles/music/templates/mpd_state

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+sw_volume: 20
+audio_device_state:1:Pulse
+state: play
+current: 0
+time: 0
+random: 0
+repeat: 0
+single: 0
+consume: 0
+crossfade: 0
+mixrampdb: 0.000000
+mixrampdelay: -1.000000
+playlist_begin
+song_begin: http://ice4.somafm.com/groovesalad-256-mp3
+Name: SomaFM Groove Salad
+song_end
+playlist_end