105 lines
4.7 KiB
Org Mode
105 lines
4.7 KiB
Org Mode
# -*- after-save-hook: (org-babel-tangle t); -*-
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#+title: MPD Configuration
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#+setupfile: ~/org/config/headers
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#+options: auto-id:t
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#+html_head: <meta name="description" content="Phundrak’s MPD Configuration" />
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#+html_head: <meta property="og:title" content="Phundrak’s MPD Configuration" />
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#+html_head: <meta property="og:description" content="Phundrak’s MPD Configuration Detailed" />
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#+property: header-args:emacs-lisp :lexical t :exports none :tangle no
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#+property: header-args:emacs-lisp+ :noweb yes :wrap src conf-space
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#+property: header-args:conf-space :tangle ~/.config/mpd/mpd.conf :noweb yes :exports code
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* Introduction
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:PROPERTIES:
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:CUSTOM_ID: Introduction-zln38f71v8j0
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:END:
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As its name indicates, the [[https://www.musicpd.org/][Music Player Daemon]] --- or MPD for short
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--- is a daemon that manages music files on a computer and plays them.
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It can be manipulated by various front-end applications, such as the
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command-line utility ~mpc~, TUI ~ncmpcpp~, or GUI ~cantata~. In my case, I
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use mainly ~ncmpcpp~ and Emacs’ EMMS.
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On my computer, MPD runs as a user daemon, as seen in [[file:bootstrap.org::#Execute_bootstrap-Enable_some_services-Mpd-f0f5b9b7][my bootstrap
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file here]].
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* Required Parameters
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:PROPERTIES:
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:CUSTOM_ID: Required-Parameters-sa4jfr71v8j0
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:END:
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MPD requires a few compulsory parameters that we will see below.
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#+name: mpd-required-parameters
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| Parameter name | Value | Comment |
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|-------------------------+---------------------------+--------------------------------------------------------------------------|
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| =follow_outside_symlinks= | =yes= | Whether to follow symlinks pointing outside the music directory |
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| =follow_inside_symlinks= | =yes= | Whether to follow symlinks pointing inside the music directory |
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| =db_file= | =~/.config/mpd/database= | Location of MPD’s database |
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| =sticker_file= | =~/.config/mpd/sticker.sql= | Location of the sticker database (dynamic information attached to songs) |
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| =log_file= | =~/.config/mpd/log= | Location of MPD’s log file |
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#+name: mpd-gen-values
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#+begin_src emacs-lisp :var table=mpd-required-parameters :exports results
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(mapconcat (lambda (parameter)
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(let* ((trim-name (lambda (parameter) (string-replace "=" "" parameter)))
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(name (apply trim-name `(,(car parameter))))
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(value (apply trim-name `(,(cadr parameter)))))
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(format "%s \"%s\"" name value)))
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table
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"\n")
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#+end_src
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#+RESULTS: mpd-gen-values
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#+begin_src conf-space
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follow_outside_symlinks "yes"
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follow_inside_symlinks "yes"
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db_file "~/.config/mpd/database"
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sticker_file "~/.config/mpd/sticker.sql"
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log_file "~/.config/mpd/log"
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#+end_src
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* Optional Parameters
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:PROPERTIES:
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:CUSTOM_ID: Optional-Parameters-hkw8zz71v8j0
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:END:
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While these values are not strictly necessary, some are still
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extremely useful such as ~music_directory~ so we don’t have to manually
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add our music to MPD each time we run it.
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#+name: mpd-optional-parameters
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| Parameter | Value | Comment |
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|--------------------+---------------------+-----------------------------------------------------------|
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| =music_directory= | =~/Music= | Location of the music directory |
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| =playlist_directory= | =~/Music/playlists= | Location of MPD playlists |
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| =pid_file= | =~/.config/mpd/pid= | Location of MPD’s PID |
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| =state_file= | =~/.config/mpd/state= | File where the state of MPD is saved when killed |
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| =bind_to_address= | =localhost= | Limit MPD to the localhost address |
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| =auto_update= | =yes= | No need to manually update MPD’s database with ~mpc update~ |
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#+begin_src conf-space
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<<mpd-gen-values(table=mpd-optional-parameters)>>
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#+end_src
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* Audio outputs
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:PROPERTIES:
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:CUSTOM_ID: Audio-outputs-emqjro81v8j0
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:END:
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Two audio outputs will be defined. The first one is dedicated to
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Pulseaudio so I can actually hear my music. Its configuration is
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simple, really.
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#+begin_src conf-space
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audio_output {
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type "pulse"
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name "pulse audio"
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}
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#+end_src
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Another one is created, but this time for the visualizer of ~ncmpcpp~.
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It is not necessary to create this one if you don’t plan on using this
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feature.
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#+begin_src conf-space
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audio_output {
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type "fifo"
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name "my_fifo"
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path "/tmp/mpd.fifo"
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format "44100:16:2"
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}
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#+end_src
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