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El módulo (gnu services audio) proporciona un servicio para iniciar
MPD (el daemon de reproducción de música).
El daemon de reproducción de música (MPD) es un servicio que puede reproducir música mientras se controla desde la máquina local o sobre una red por una multitud de clientes.
El siguiente ejemplo muestra como se puede ejecutar mpd como
"rober" en el puerto 6666. Usa pulseaudio para su salida.
(service mpd-service-type
(mpd-configuration
(user "rober")
(port "6666")))
El tipo de servicio para mpd.
Tipo de datos que representa la configuración de mpd.
package (default: mpd) (type: file-like)The MPD package.
user (default: %mpd-user) (type: user-account)Usuaria que ejecuta mpd.
The default %mpd-user is a system user with the name “mpd”, who is
a part of the group group (see below).
group (default: %mpd-group) (type: user-group)The group to run mpd as.
The default %mpd-group is a system group with name “mpd”.
shepherd-requirement (default: '()) (type: list-of-symbol)A list of symbols naming Shepherd services that this service will depend on.
environment-variables (default: '("PULSE_CLIENTCONFIG=/etc/pulse/client.conf" "PULSE_CONFIG=/etc/pulse/daemon.conf")) (type: list-of-strings)A list of strings specifying environment variables.
log-file (default: "/var/log/mpd/log") (type: maybe-string)The location of the log file. Set to syslog to use the local syslog
daemon or %unset-value to omit this directive from the configuration
file.
log-level (type: maybe-string)Supress any messages below this threshold. Available values: notice,
info, verbose, warning and error.
music-directory (type: maybe-string)El directorio para buscar archivos de música.
playlist-directory (type: maybe-string)El directorio para almacenar listas de reproducción.
db-file (type: maybe-string)La localización de la base de datos de música.
state-file (type: maybe-string)La localización del archivo que almacena el estado actual de MPD.
sticker-file (type: maybe-string)La localización de la base de datos de pegatinas.
default-port (default: 6600) (type: maybe-integer)The default port to run mpd on.
endpoints (type: maybe-list-of-strings)The addresses that mpd will bind to. A port different from
default-port may be specified, e.g. localhost:6602 and IPv6
addresses must be enclosed in square brackets when a different port is
used. To use a Unix domain socket, an absolute path or a path starting with
~ can be specified here.
database (type: maybe-mpd-plugin)MPD database plugin configuration.
partitions (default: '()) (type: list-of-mpd-partition)List of MPD "partitions".
neighbors (default: '()) (type: list-of-mpd-plugin)List of MPD neighbor plugin configurations.
inputs (default: '()) (type: list-of-mpd-plugin)List of MPD input plugin configurations.
archive-plugins (default: '()) (type: list-of-mpd-plugin)List of MPD archive plugin configurations.
input-cache-size (type: maybe-string)MPD input cache size.
decoders (default: '()) (type: list-of-mpd-plugin)List of MPD decoder plugin configurations.
resampler (type: maybe-mpd-plugin)MPD resampler plugin configuration.
filters (default: '()) (type: list-of-mpd-plugin)List of MPD filter plugin configurations.
outputs (type: list-of-mpd-plugin-or-output)Las salidas de audio que MPD puede usar. De manera predeterminada es una salida de audio única usando pulseaudio.
playlist-plugins (default: '()) (type: list-of-mpd-plugin)List of MPD playlist plugin configurations.
extra-options (default: '()) (type: alist)An association list of option symbols/strings to string values to be appended to the configuration.
Data type representing a mpd plugin.
plugin (type: maybe-string)Plugin name.
name (type: maybe-string)Name.
enabled? (type: maybe-boolean)Whether the plugin is enabled/disabled.
extra-options (default: '()) (type: alist)An association list of option symbols/strings to string values to be appended to the plugin configuration. See MPD plugin reference for available options.
Data type representing a mpd partition.
name (type: string)Partition name.
extra-options (default: '()) (type: alist)An association list of option symbols/strings to string values to be appended to the partition configuration. See Configuring Partitions for available options.
Data type representing a mpd audio output.
name (default: "MPD") (type: string)Nombre de la salida de audio.
type (default: "pulse") (type: string)Tipo de la salida de audio.
enabled? (default: #t) (type: boolean)Especifica si esta salida de audio se activa cuando se inicia MPD. De manera predeterminada se activan todas las salidas de audio. Esta es la configuración predeterminada cuando no existe un archivo de estado; con un archivo de estado se restaura el estado anterior.
format (type: maybe-string)Force a specific audio format on output. See Global Audio Format for a more detailed description.
tags? (default: #t) (type: boolean)Si se proporciona el valor #f MPD no envia etiquetas a esta
salida. Es útil únicamente para módulos de salida que pueden recibir
etiquetas, por ejemplo el módulo de salida httpd.
always-on? (default: #f) (type: boolean)If set to #t, then MPD attempts to keep this audio output always
open. This may be useful for streaming servers, when you don?t want to
disconnect all listeners even when playback is accidentally stopped.
mixer-type (default: "none") (type: string)This field accepts a string that specifies which mixer should be used for
this audio output: the hardware mixer, the software mixer, the
null mixer (allows setting the volume, but with no effect; this can
be used as a trick to implement an external mixer External Mixer) or no
mixer (none).
replay-gain-handler (type: maybe-string)This field accepts a string that specifies how
Replay
Gain is to be applied. software uses an internal software volume
control, mixer uses the configured (hardware) mixer control and
none disables replay gain on this audio output.
extra-options (default: '()) (type: alist)An association list of option symbols/strings to string values to be appended to the audio output configuration.
The following example shows a configuration of mpd that configures
some of its plugins and provides a HTTP audio streaming output.
(service mpd-service-type
(mpd-configuration
(outputs
(list (mpd-output
(name "streaming")
(type "httpd")
(mixer-type 'null)
(extra-options
`((encoder . "vorbis")
(port . "8080"))))))
(decoders
(list (mpd-plugin
(plugin "mikmod")
(enabled? #f))
(mpd-plugin
(plugin "openmpt")
(enabled? #t)
(extra-options `((repeat-count . -1)
(interpolation-filter . 1))))))
(resampler (mpd-plugin
(plugin "libsamplerate")
(extra-options `((type . 0)))))))
myMPD is a web server frontend for MPD that provides a mobile friendly web client for MPD.
The following example shows a myMPD instance listening on port 80, with album cover caching disabled.
(service mympd-service-type
(mympd-configuration
(port 80)
(covercache-ttl 0)))
The service type for mympd.
Available mympd-configuration fields are:
package (default: mympd) (type: file-like)The package object of the myMPD server.
shepherd-requirement (default: '()) (type: list-of-symbol)This is a list of symbols naming Shepherd services that this service will depend on.
user (default: %mympd-user) (type: user-account)Owner of the mympd process.
The default %mympd-user is a system user with the name “mympd”, who
is a part of the group group (see below).
group (default: %mympd-group) (type: user-group)Owner group of the mympd process.
The default %mympd-group is a system group with name “mympd”.
work-directory (default: "/var/lib/mympd") (type: string)Where myMPD will store its data.
cache-directory (default: "/var/cache/mympd") (type: string)Where myMPD will store its cache.
acl (type: maybe-mympd-ip-acl)ACL to access the myMPD webserver.
covercache-ttl (default: 31) (type: maybe-integer)How long to keep cached covers, 0 disables cover caching.
http? (default: #t) (type: boolean)HTTP support.
host (default: "[::]") (type: string)Host name to listen on.
port (default: 80) (type: maybe-port)HTTP port to listen on.
log-level (default: 5) (type: integer)How much detail to include in logs, possible values: 0 to 7.
log-to (default: "/var/log/mympd/log") (type: string-or-symbol)Where to send logs. By default, the service logs to
/var/log/mympd.log. The alternative is 'syslog, which sends
output to the running syslog service under the ‘daemon’ facility.
lualibs (default: "all") (type: maybe-string)See https://jcorporation.github.io/myMPD/scripting/#lua-standard-libraries.
uri (type: maybe-string)Override URI to myMPD. See https://github.com/jcorporation/myMPD/issues/950.
script-acl (default: (mympd-ip-acl (allow '("127.0.0.1")))) (type: maybe-mympd-ip-acl)ACL to access the myMPD script backend.
ssl? (default: #f) (type: boolean)SSL/TLS support.
ssl-port (default: 443) (type: maybe-port)Port to listen for HTTPS.
ssl-cert (type: maybe-string)Path to PEM encoded X.509 SSL/TLS certificate (public key).
ssl-key (type: maybe-string)Path to PEM encoded SSL/TLS private key.
pin-hash (type: maybe-string)SHA-256 hashed pin used by myMPD to control settings access by prompting a pin from the user.
save-caches? (type: maybe-boolean)Whether to preserve caches between service restarts.
Available mympd-ip-acl fields are:
allow (default: '()) (type: list-of-strings)Allowed IP addresses.
deny (default: '()) (type: list-of-strings)Disallowed IP addresses.
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