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Old 30th December 2013
shep shep is offline
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Default Music Player Daemon (MPD) OpenBSD Howto

Music Player Daemon (MPD) OpenBSD Howto

Edit: See the next post for OpenBSD 6.3+ modifications

MPD /audio/mpd is one of the lightest, most responsive methods to access mp3, ogg files and internet streams. Installation entails 2 components; the daemon and one of a number of front ends. On an older i386, playback of locally stored mp3's or internet music streams uses less than 2% of the cpu.

In OpenBSD, the /audio/mpd port has two flavors, the basic port and a flavor that enables the tremor integer decorder. The tremor option enhances performance on *ogg files at the expense of network streaming.

There are multiple front ends that function as traditional clients to the music player daemon. Clients can be command line, console, embedded, or GTK+, Qt or Java based gui's. Plugin interfaces ranging from a Firefox extension, desktop specific controllers and emacs are available. The clients also can control some aspects of the daemon.

In OpenBSD, configuration is easy, just edit /etc/mpd.conf to delineate where your music is stored.
Code:
music_directory                 "/home/user/music"
The port maintainers have set defaults for local users with the libao backend. For Gnome3 users, libao will work in parallel with pulseaudio or /etc/mpd.conf can be edited to change mpd output from libao to pulseaudio.

The music files and the chain of directories all need to be executable. In OpenBSD, the executable directory chain is there by default when using /home/user/music. On initial startup and after any additions to the music folder, an update command will need to be run. Once the music directory is in place and configured in /etc/mpd.conf, add mpd to collection of package script daemons to be started in /etc/rc.conf.local. For example:
Code:
pkg_scripts="messagebus avahi_daemon mpd"
Note that mpd does not require the messagebus or avahi_daemon to function.

Either reboot or run
Code:
/etc/rc.d/mpd -f start
as su/root to start the daemon.

I'll mention two mpd clients; audio/ncmpc and audio/sonata.

Ncmpc can be run in the console or in a terminal. With the setup described above you should see that it is connected to the localhost. Ctrl-U will start a music database update. The F1 key will show the help file, F2 the playlist and F3 will let you browse the music folder.
Internet music streams can be added in the F2 playlist panel with the 'a' key. The 'S' key will save the music stream url where it can be found in the F3 panel. Two of my favorite stream sources are:
Code:
http://audio-mp3.ibiblio.org:8000/wncw-128k
WNCW, an NPR station out of North Carolina
and
Code:
http://stream-tx1.radioparadise.com:80/mp3-128
Radio Paradise which is a commercial free station out of California. Ncmpc also supports lyrics but at the expense of increase bandwidth and cpu cycles.

If the station you wish to stream is a *m3u link, the mp3 stream will be embedded with the *m3u file. For example, the WNCW web page provides this web page link
Download the link to your local directory view the contents

$ less 128K.m3u provides

Code:
#extm3u
#extinf:99999,88.7 WNCW
http://audio-mp3.ibiblio.org:8000/wncw-128k
Some example menu entries:
For those using xterm:
Code:
xterm -g 54x18 +sb -T "NcMpc Music" -e ncmpc
.
Alternative terminals that support changing title bar icons, such as /x11/rxvt-unicode can use
Code:
urxvt -g 54x18 +sb -icon /usr/local/share/pixmaps/music.png -T "NcMpc Music" -e ncmpc
after copying an icon to the file path specified. Those running a desktop environment that supports freedestop menu entries can use the following entry in /usr/local/share/applications/ncmpd.desktop
Code:
[Desktop Entry]
Name=NcMpc
Comment=MPD Front end
Exec=xterm -g 54x18 +sb -T "NcMpc Music" -e ncmpc
Terminal=false
Type=Application
Icon=music.png
Categories=GTK;AudioVideo;
An example music.png icon and a screenshot of ncmpc running in rxvt-unicode:
Name:  music.png
Views: 2535
Size:  1.5 KB

Name:  ncmpc.png
Views: 2553
Size:  30.4 KB


Sonata, /audio/sonata, provides the same functionality with a mouse pointer interface and a system tray icon. Internet streams are added and stored under the 'streams' tab. Album art is available in addition to lyrics for those with bandwidth and cpu cycles to burn.

Edit: 5) dbus_daemon renamed to messagebus

Last edited by shep; 11th July 2018 at 10:21 PM. Reason: 1) Update RadioParadise to more robust server 2) Dealing with m3u links 3) Clarify pkg_scripts damons 4) Corrected WNCW link
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Old 20th October 2015
shep shep is offline
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This is an update for OpenBSD release 6.3

In OpenBSD 6.3 release, the default /etc/mpd.conf file is now provisioned with sndio for the audio output. If I attempted to start mpd system wide in /etc/rc.conf.local, there were problems with audio streams.

What worked well is to setup a local configuration (per user) as described in the
Arch Linux mpd wiki.
I used OpenBSD /usr/local/share/doc/examples/mpd/mpd.conf when making a ~/.mpd/mpd.conf. If you have an /etc/mpd.conf, rename it to a non-functional backup.


1) In mpd.conf, Comment out
Code:
bind_to_address                        "localhost"
to
Code:
#bind_to_address                        "localhost"
2) uncomment
Code:
#bind_to_address                 "~/.mpd/socket"
to
Code:
bind_to_address                 "~/.mpd/socket"
3) If you are using Gnome3, KDE4 or Xfce4, you can specify the xdg, freedesktop music directory
Code:
music_directory                 "~/Music"
4) Autostart the command on login
Code:
mpd ~/.mpd/mpd.conf
The above command can be added to ~/.xinitrc or ~/.xsession or the autostart file in your WM/DE.

Last edited by shep; 4 Weeks Ago at 12:19 AM. Reason: Updated for 6.3 , ~/.profile entry to create local socket not needed - removed
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Old 9th July 2018
beavers beavers is offline
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Does mpd's built-in http option work on OpenBSD? I recall installing it some time ago, but failing to get music streaming over http -- I could only get it playing locally on the server, controlled with mpdroid and mpc.

Edit: super nice write-up!!!

Last edited by beavers; 9th July 2018 at 07:46 PM. Reason: Nice write-up!
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Old 9th July 2018
ibara's Avatar
ibara ibara is offline
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Where's the Like button?
We the people need Like buttons for threads like this!
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Old 9th July 2018
ocicat ocicat is offline
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Quote:
Originally Posted by ibara View Post
Where's the Like button?
We discourage subject changing within threads which have a clear distinct singular topic.

However to answer the question, the "like" counter was disabled once it was discovered to contain a security flaw in this version of vBulletin.
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Old 10th July 2018
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ibara ibara is offline
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Sorry, I wasn't intending to change the subject; I was trying to thank shep for this tutorial with a bit of humor
(But good to know about the like button.)
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Old 13th July 2018
beavers beavers is offline
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So, is anyone using the http feature of mpd?
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Old 13th July 2018
shep shep is offline
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My setup on 6.3 Stable streams the WNCW and Radio Paradise url's given above.
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Old 16th July 2018
shep shep is offline
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My ~/.mpd/mpd.conf for a local user, unix socket, sndio. Note that mpd needs to be started locally and not system wide.
Code:
# An example configuration file for MPD.
# Read the user manual for documentation: http://www.musicpd.org/doc/user/


# Files and directories #######################################################
#
# This setting controls the top directory which MPD will search to discover the
# available audio files and add them to the daemon's online database. This 
# setting defaults to the XDG directory, otherwise the music directory will be
# be disabled and audio files will only be accepted over ipc socket (using
# file:// protocol) or streaming files over an accepted protocol.
#
music_directory                 "~/Music"
#
# This setting sets the MPD internal playlist directory. The purpose of this
# directory is storage for playlists created by MPD. The server will use 
# playlist files not created by the server but only if they are in the MPD
# format. This setting defaults to playlist saving being disabled.
#
playlist_directory              "~/.mpd/playlists"
#
# This setting sets the location of the MPD database. This file is used to
# load the database at server start up and store the database while the 
# server is not up. This setting defaults to disabled which will allow
# MPD to accept files over ipc socket (using file:// protocol) or streaming
# files over an accepted protocol.
#
db_file                         "~/.mpd/mpd.db"
# 
# These settings are the locations for the daemon log files for the daemon.
# These logs are great for troubleshooting, depending on your log_level
# settings.
#
# The special value "syslog" makes MPD use the local syslog daemon. This
# setting defaults to logging to syslog, otherwise logging is disabled.
#
log_file                        "~/.mpd/mpd.log"
#
# This setting sets the location of the file which stores the process ID
# for use of mpd --kill and some init scripts. This setting is disabled by
# default and the pid file will not be stored.
#
pid_file                        "~/.mpd/mpd.pid"
#
# This setting sets the location of the file which contains information about
# most variables to get MPD back into the same general shape it was in before
# it was brought down. This setting is disabled by default and the server 
# state will be reset on server start up.
#
state_file                      "~/.mpd/mpdstate"
#
# The location of the sticker database.  This is a database which
# manages dynamic information attached to songs.
#
sticker_file			"~/.mpd/sticker.sql"
#
###############################################################################


# General music daemon options ################################################
#
# This setting specifies the user that MPD will run as. MPD should never run as
# root and you may use this setting to make MPD change its user ID after
# initialization. This setting is disabled by default and MPD is run as the
# current user.
#
#user                            "_mpd"
#
# This setting specifies the group that MPD will run as. If not specified
# primary group of user specified with "user" setting will be used (if set).
# This is useful if MPD needs to be a member of group such as "audio" to
# have permission to use sound card.
#
#group				"nogroup"
#
# This setting sets the address for the daemon to listen on. Careful attention
# should be paid if this is assigned to anything other then the default, any.
# This setting can deny access to control of the daemon. Not effective if
# systemd socket activiation is in use.
#
# For network
#bind_to_address		"any"
#
# And for Unix Socket
bind_to_address			"~/.mpd/socket"
#bind_to_address		"/var/run/mpd/socket"
#
#bind_to_address		"localhost"
#
# This setting is the TCP port that is desired for the daemon to get assigned
# to.
#
#port				"6600"
#
# This setting controls the type of information which is logged. Available 
# setting arguments are "default", "secure" or "verbose". The "verbose" setting
# argument is recommended for troubleshooting, though can quickly stretch
# available resources on limited hardware storage.
#
#log_level			"default"
#
# If you have a problem with your MP3s ending abruptly it is recommended that 
# you set this argument to "no" to attempt to fix the problem. If this solves
# the problem, it is highly recommended to fix the MP3 files with vbrfix
# (available from <http://www.willwap.co.uk/Programs/vbrfix.php>), at which
# point gapless MP3 playback can be enabled.
#
#gapless_mp3_playback			"yes"
#
# Setting "restore_paused" to "yes" puts MPD into pause mode instead
# of starting playback after startup.
#
#restore_paused "no"
#
# This setting enables MPD to create playlists in a format usable by other
# music players.
#
#save_absolute_paths_in_playlists	"no"
#
# This setting defines a list of tag types that will be extracted during the
# audio file discovery process. The complete list of possible values can be
# found in the user manual.
#metadata_to_use	"artist,album,title,track,name,genre,date,composer,performer,disc"
#
# This setting enables automatic update of MPD's database when files in 
# music_directory are changed.
#
#auto_update	"yes"
#
# Limit the depth of the directories being watched, 0 means only watch
# the music directory itself.  There is no limit by default.
#
#auto_update_depth "3"
#
###############################################################################


# Symbolic link behavior ######################################################
#
# If this setting is set to "yes", MPD will discover audio files by following 
# symbolic links outside of the configured music_directory.
#
#follow_outside_symlinks	"yes"
#
# If this setting is set to "yes", MPD will discover audio files by following
# symbolic links inside of the configured music_directory.
#
#follow_inside_symlinks		"yes"
#
###############################################################################


# Zeroconf / Avahi Service Discovery ##########################################
#
# If this setting is set to "yes", service information will be published with
# Zeroconf / Avahi.
#
#zeroconf_enabled		"yes"
#
# The argument to this setting will be the Zeroconf / Avahi unique name for
# this MPD server on the network.
#
#zeroconf_name			"Music Player"
#
###############################################################################


# Permissions #################################################################
#
# If this setting is set, MPD will require password authorization. The password
# setting can be specified multiple times for different password profiles.
#
#password                        "password@read,add,control,admin"
#
# This setting specifies the permissions a user has who has not yet logged in. 
#
#default_permissions             "read,add,control,admin"
#
###############################################################################


# Database #######################################################################
#

#database {
#       plugin "proxy"
#       host "other.mpd.host"
#       port "6600"
#}

# Input #######################################################################
#

input {
        plugin "curl"
#       proxy "proxy.isp.com:8080"
#       proxy_user "user"
#       proxy_password "password"
}

#
###############################################################################

# Audio Output ################################################################
#
# MPD supports various audio output types, as well as playing through multiple 
# audio outputs at the same time, through multiple audio_output settings 
# blocks. Setting this block is optional, though the server will only attempt
# autodetection for one sound card.
#
# An example of an ALSA output:
#
#audio_output {
#	type		"alsa"
#	name		"My ALSA Device"
##	device		"hw:0,0"	# optional
##	mixer_type      "hardware"	# optional
##	mixer_device	"default"	# optional
##	mixer_control	"PCM"		# optional
##	mixer_index	"0"		# optional
#}
#
# An example of an OSS output:
#
#audio_output {
#	type		"oss"
#	name		"My OSS Device"
##	device		"/dev/dsp"	# optional
##	mixer_type      "hardware"	# optional
##	mixer_device	"/dev/mixer"	# optional
##	mixer_control	"PCM"		# optional
#}
#
# An example of a shout output (for streaming to Icecast):
#
#audio_output {
#	type		"shout"
#	encoder		"vorbis"		# optional
#	name		"My Shout Stream"
#	host		"localhost"
#	port		"8000"
#	mount		"/mpd.ogg"
#	password	"hackme"
#	quality		"5.0"
#	bitrate		"128"
#	format		"44100:16:1"
##	protocol	"icecast2"		# optional
##	user		"source"		# optional
##	description	"My Stream Description"	# optional
##	url		"http://example.com"	# optional
##	genre		"jazz"			# optional
##	public		"no"			# optional
##	timeout		"2"			# optional
##	mixer_type      "software"		# optional
#}
#
# An example of a recorder output:
#
#audio_output {
#	type		"recorder"
#	name		"My recorder"
#	encoder		"vorbis"		# optional, vorbis or lame
#	path		"/var/lib/mpd/recorder/mpd.ogg"
##	quality		"5.0"			# do not define if bitrate is defined
#	bitrate		"128"			# do not define if quality is defined
#	format		"44100:16:1"
#}
#
# An example of a httpd output (built-in HTTP streaming server):
#
#audio_output {
#	type		"httpd"
#	name		"My HTTP Stream"
#	encoder		"vorbis"		# optional, vorbis or lame
#	port		"8000"
#	bind_to_address	"0.0.0.0"		# optional, IPv4 or IPv6
##	quality		"5.0"			# do not define if bitrate is defined
#	bitrate		"128"			# do not define if quality is defined
#	format		"44100:16:1"
#	max_clients	"0"			# optional 0=no limit
#}
#
# An example of a pulseaudio output (streaming to a remote pulseaudio server)
#
#audio_output {
#	type		"pulse"
#	name		"My Pulse Output"
##	server		"remote_server"		# optional
##	sink		"remote_server_sink"	# optional
#}
#
# An example of a winmm output (Windows multimedia API).
#
#audio_output {
#	type		"winmm"
#	name		"My WinMM output"
##	device		"Digital Audio (S/PDIF) (High Definition Audio Device)" # optional
#		or
##	device		"0"		# optional
##	mixer_type	"hardware"	# optional
#}
#
# An example of an openal output.
#
#audio_output {
#	type		"openal"
#	name		"My OpenAL output"
##	device		"Digital Audio (S/PDIF) (High Definition Audio Device)" # optional
#}
#
# An example of an sndio output.
#
audio_output {
	type		"sndio"
	name		"sndio output"
	mixer_type	"software"
}
#
# An example of an OS X output:
#
#audio_output {
#	type		"osx"
#	name		"My OS X Device"
##	device		"Built-in Output"	# optional
##	channel_map      "-1,-1,0,1"	# optional
#}
#
## Example "pipe" output:
#
#audio_output {
#	type		"pipe"
#	name		"my pipe"
#	command		"aplay -f cd 2>/dev/null"
## Or if you're want to use AudioCompress
#	command		"AudioCompress -m | aplay -f cd 2>/dev/null"
## Or to send raw PCM stream through PCM:
#	command		"nc example.org 8765"
#	format		"44100:16:2"
#}
#
## An example of a null output (for no audio output):
#
#audio_output {
#	type		"null"
#	name		"My Null Output"
#	mixer_type      "none"			# optional
#}
#
###############################################################################


# Normalization automatic volume adjustments ##################################
#
# This setting specifies the type of ReplayGain to use. This setting can have
# the argument "off", "album", "track" or "auto". "auto" is a special mode that
# chooses between "track" and "album" depending on the current state of
# random playback. If random playback is enabled then "track" mode is used.
# See <http://www.replaygain.org> for more details about ReplayGain.
# This setting is off by default.
#
#replaygain			"album"
#
# This setting sets the pre-amp used for files that have ReplayGain tags. By
# default this setting is disabled.
#
#replaygain_preamp		"0"
#
# This setting sets the pre-amp used for files that do NOT have ReplayGain tags.
# By default this setting is disabled.
#
#replaygain_missing_preamp	"0"
#
# This setting enables or disables ReplayGain limiting.
# MPD calculates actual amplification based on the ReplayGain tags
# and replaygain_preamp / replaygain_missing_preamp setting.
# If replaygain_limit is enabled MPD will never amplify audio signal
# above its original level. If replaygain_limit is disabled such amplification
# might occur. By default this setting is enabled.
#
#replaygain_limit		"yes"
#
# This setting enables on-the-fly normalization volume adjustment. This will
# result in the volume of all playing audio to be adjusted so the output has 
# equal "loudness". This setting is disabled by default.
#
#volume_normalization		"no"
#
###############################################################################

# Character Encoding ##########################################################
#
# If file or directory names do not display correctly for your locale then you 
# may need to modify this setting.
#
#filesystem_charset		"UTF-8"
#
###############################################################################

Last edited by shep; 4 Weeks Ago at 12:20 AM. Reason: Specifying local unix socket no longer necessary
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