mpd/doc/mpd.conf.5

.TH mpd.conf 5
.SH NAME
mpd.conf \- Music Player Daemon configuration file
.SH DESCRIPTION
\fBmpd.conf\fP is the configuration file for mpd(1).  If not specified on the
command line, MPD first searches for it at \fB~/.mpdconf\fP and then in
\fB/etc/mpd.conf\fP.

Lines beginning with a "#" character are comments.  All other non-empty lines
specify parameters and their values.  These lines contain the parameter name
and parameter value (surrounded by double quotes) separated by whitespace
(either tabs or spaces).  For example:

parameter "value"

The exception to this rule is the audio_output parameter, which is of the form:

audio_output {
.br
        parameter1 "value"
        parameter2 "value"
.br
}

Parameters that take a file or directory as an argument should use absolute
paths.

See \fBdocs/mpdconf.example\fP in the source tarball for an example
configuration file.
.SH REQUIRED PARAMETERS
.TP
.B music_directory <directory>
This specifies the directory where music is located.
.TP
.B playlist_directory <directory>
This specifies the directory where saved playlists are stored.
.TP
.B db_file <file>
This specifies where the db file will be stored.
.TP
.B log_file <file>
This specifies where the log file should be located.
.TP
.B error_file <file>
This specifies where the error file should be located.
.SH OPTIONAL PARAMETERS
.TP
.B pid_file <file>
This specifies the file to save mpd's process ID in.
.TP
.B state_file <file>
This specifies if a state file is used and where it is located.  The state of
mpd will be saved to this file when mpd is terminated by a TERM signal or by
the "kill" command.  When mpd is restarted, it will read the state file and
restore the state of mpd (including the playlist).
.TP
.B audio_output
See \fBREQUIRED AUDIO OUTPUT PARAMETERS\fP and \fBOPTIONAL AUDIO OUTPUT
PARAMETERS\fP.
.TP
.B audio_output_format <sample_rate:bits:channels>
This specifies the sample rate, bits per sample, and number of channels of
audio that is sent to each audio output.  Note that audio outputs may specify
their own audio format which will be used for actual output to the audio
device.  An example is "44100:16:2" for 44100Hz, 16 bits, and 2 channels.  The
default is to use the audio format of the input file.
.TP
.B mixer_type <oss, alsa or software>
This specifies which mixer to use.  The default depends on what audio output
support mpd was built with.
.TP
.B mixer_device <mixer dev>
This specifies which mixer to use.  The default for oss is "/dev/mixer"; the
default for alsa is "default".
.TP
.B mixer_control <mixer ctrl>
This specifies which mixer control to use (sometimes referred to as the
"device").  Examples of mixer controls are PCM, Line1, Master, etc.  An example
for OSS is "Pcm", and an example for alsa is "PCM".
.TP
.B filesystem_charset <charset>
This specifies the character set used for the filesystem.  A list of supported
character sets can be obtained by running "iconv -l".  The default is
determined from the locale when the db was originally created.
.TP
.B replaygain <album or track>
If specified, mpd will adjust the volume of songs played using replaygain tags
(see <\fBhttp://www.replaygain.org/\fP>).  Setting this to "album" will adjust
volume using the album's replaygain tags, while setting it to "track" will
adjust it using the track replaygain tags.  Currently only FLAC, Ogg Vorbis,
Musepack, and MP3 (through ID3v2 replaygain tags, not APEv2) are supported.
.TP
.B replaygain_preamp <-15 to 15>
This is the gain (in dB) applied to songs with replaygain tags.
.TP
.B audio_buffer_size <size in KiB>
This specifies the size of the audio output buffer that mpd uses.  The default
is 2048.
.TP
.B buffer_before_play <0-100%>
This specifies the amount of the audio buffer that will be filled before a song
begins playing.  The default is 25%.
.TP
.B http_buffer_size <size in KiB>
This specifies the size of the buffer used for playing HTTP streams.  The
default is 128.
.TP
.B http_prebuffer_size <size in KiB>
This specifies how much of an HTTP stream should be buffered before beginning
playback.  The default is 32.
.TP
.B http_proxy_host <hostname>
Use to specify the proxy host used for HTTP connections.
.TP
.B http_proxy_port <port>
The port that the HTTP proxy host uses.
.TP
.B http_proxy_user <username>
If the HTTP proxy server requires authentication, this specifies the username.
.TP
.B http_proxy_password <password>
If the HTTP proxy server requires authentication, this specifies the password.
.TP
.B user <username>
This specifies the user that mpd will run as, if set.
.TP
.B bind_to_address <ip address or hostname or any>
This specifies which address mpd binds to and listens on.  The default is
"any", which binds to all available addresses.
.TP
.B port <port>
This specifies the port that mpd listens on.  The default is 6600.
.TP
.B password <password@permissions>
This specifies a password for access to mpd.  The format is
"password@permissions" where permissions is a comma delimmitted list composed
of "read", "add", "control", and/or "admin".  "read" allows for reading of the
database, displaying the current playlist, and current status of mpd.  "add"
allows for adding songs and loading playlists.  "control" allows for all other
player and playlist manipulations.  "admin" allows the db to be updated and for
the client to kill mpd.  More than one password can be specified.  An example
value is "somePassword@read,add".
.TP
.B default_permissions <permissions>
This specifies the permissions of a client that has not been authenticated
using a password.  The format of permissions is specified in the description of
the "password" config parameter.  If no passwords are specified, the default is
"read,add,control,admin", otherwise it is "" (no permissions).
.TP
.B metadata_to_use <tags>
This specifies the song metadata that will be scanned and made available to
clients.  Note that you must recreate (not update) your database for changes to
this parameter to take effect.  Possible values are artist, album, title,
track, name, genre, date, composer, performer, comment, and disc.  Multiple
tags may be specified as a comma separated list.  An example value is
"artist,album,title,track".  The special value "none" may be used alone to
disable all metadata.  The default is to use all known tag types.
.TP
.B max_playlist_length <number>
This specifies the maximum number of songs that can be in the playlist.  The
default is 4096.
.TP
.B log_level <default, secure, or verbose>
This specifies how verbose logs are.  "default" is minimal logging, "secure"
reports from what address a connection is opened, and when it is closed, and
"verbose" records excessive amounts of information for debugging purposes.  The
default is "default".
.TP
.B connection_timeout <seconds>
If a client does not send any new data in this time period, the connection is
closed.  The default is 60.
.TP
.B max_connections <number>
This specifies the maximum number of clients that can be connected to mpd.  The
default is 5.
.TP
.B max_command_list_size <size in KiB>
This specifies the maximum size a command list can be.  The default is 2048.
.TP
.B max_output_buffer_size <size in KiB>
This specifies the maximum size of the output buffer to a client.  The default
is 8192.
.TP
.B save_absolute_paths_in_playlists <yes or no>
This specifies whether relative or absolute paths for song filenames are used
when saving playlists.  The default is "no".
.SH REQUIRED AUDIO OUTPUT PARAMETERS
.TP
.B type <type>
This specifies the audio output type.  Depending on what audio output support
mpd was built with possible values could be "alsa", "oss", "osx", "pulse",
"mvp", "ao", or "shout" (see \fBREQUIRED SHOUT OUTPUT PARAMETERS\fP and
\fBOPTIONAL SHOUT OUTPUT PARAMETERS\fP).
.TP
.B name <name>
This specifies a unique name for the audio output.
.SH OPTIONAL AUDIO OUTPUT PARAMETERS
.TP
.B format <sample_rate:bits:channels>
This specifies the sample rate, bits per sample, and number of channels of
audio that is sent to the audio output device.  See documentation for the
\fBaudio_output_format\fP parameter for more details.  The default is to use
whatever audio format is passed to the audio output.
.TP
.B device <dev>
This specifies the device to use for audio output.  Used by the alsa and oss
output types.  The default for oss is "/dev/dsp"; the default for alsa is
"hw:0,0".
.TP
.B server <server list>
A space separated list of servers to try to connect to.  Used only by the pulse
audio output.  See <\fBhttp://www.pulseaudio.org/wiki/ServerStrings\fP> for
more details.  The default is to let PulseAudio choose a server.
.TP
.B sink <sink>
The sink to output to. Used only by the pulse audio output.  The default is to
let PulseAudio choose a sink.
.TP
.B driver <driver>
This specifies the libao driver to use for audio output.  Used only by the ao
output type.  Possible values depend on what libao drivers are available.  See
<\fBhttp://www.xiph.org/ao/doc/drivers.html\fP> for information on some
commonly used drivers.  Typical values for Linux include "oss" and "alsa09".
The default is "default", which causes libao to select an appropriate plugin.
.TP
.B options <opts>
This specifies the options to use for the selected libao driver.  Used only by
the ao output type.  For oss, the only option available is "dsp".  For alsa09,
the available options are: "dev", "buf_size", and "periods".  See
<\fBhttp://www.xiph.org/ao/doc/drivers.html\fP> for available options for some
commonly used drivers.  Options are assigned using "=", and ";" is used to
separate options.  An example for oss: "dsp=/dev/dsp".  An example for alsa09:
"dev=hw:0,0;buf_size=4096".  The default is "".
.TP
.B write_size <size in bytes>
This specifies how many bytes to write to the audio device at once.  Used only
by the ao output type.  This parameter is to work around a bug in older
versions of libao on sound cards with very small buffers.  The default is 1024.
.SH OPTIONAL ALSA OUTPUT PARAMETERS
.TP
.B use_mmap <yes or no>
Setting this allows you to use memory-mapped I/O.  Certain hardware setups
may benefit from this, but most do not.
Most users do not need to set this.
.TP
.B buffer_time <time in microseconds>
This sets the length of the hardware sample buffer in microseconds.
Increasing it may help to reduce or eliminate skipping on certain setups.
Most users do not need to change this.
The default is 500000 microseconds (0.5 seconds).
.TP
.B period_time <time in microseconds>
This sets the time between hardware sample transfers in microseconds.
Increasing this can reduce CPU usage while lowering it can reduce underrun
errors on bandwidth-limited devices.  Some users have reported good results
with this set to 50000, but not all devices support values this high.
Most users do not need to change this.
The default is 256000000 / sample_rate(kHz), or 5804us for CD-quality audio.
.SH REQUIRED SHOUT OUTPUT PARAMETERS
.TP
.B name <name>
This specifies not only the unique audio output name, but also the stream
title.
.TP
.B host <hostname>
This specifies the hostname of the icecast server to connect to.
.TP
.B port <port>
This specifies the port of the icecast server to connect to.
.TP
.B mount <mountpoint>
This specifies the icecast mountpoint to use.
.TP
.B password <password>
This specifies the password to use when logging in to the icecast server.
.TP
.B quality <quality>
This specifies the ogg encoding quality to use.  The value must be between 0
and 10.  Fractional values, such as 2.5, are permitted.  Either the quality or
the bitrate parameter must be specified, but not both.
.TP
.B bitrate <kbps>
This specifies the bitrate to use for encoding.  Either the quality or the
bitrate parameter must be specified, but not both.
.TP
.B format <sample_rate:bits:channels>
This specifies the sample rate, bits per sample, and number of channels to use
for encoding.
.SH OPTIONAL SHOUT OUTPUT PARAMETERS
.TP
.B user <username>
This specifies the username to use when logging in to the icecast server.  The
default is "source".
.TP
.B public <yes or no>
This specifies whether to request that the stream be listed in all public
stream directories that the icecast server knows about.  The default is no.
.TP
.B description <description>
This specifies a description of the stream.
.TP
.B genre <genre>
This specifies the genre(s) of the stream.
.SH FILES
.TP
.BI ~/.mpdconf
User configuration file.
.TP
.BI /etc/mpd.conf
Global configuration file.
.SH SEE ALSO
mpd(1), mpc(1)