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Ogis1975

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Registered: 2017-04-21

Posts: 307  

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Install music player daemon and set up it as a user service in Devuan

This short guide  describes how to install mpd as a user service in Devuan 2.1 (ascii).
Install mpd and mpc

#apt install mpd mpc

Mpc is a command line user interface for MPD server.

By default Devuan installs mpd as a system service. We don't want this, so let's remove it from startup.
If mpd is running stop it first.

#/etc/init.d/mpd stop

We don't want MPD to be started as a system service. We want to run it from a regular user account. So we must disable it. Use this command:

#update-rc.d mpd disable

To build the user configuration, extract and copy the default config with command

gunzip -c /usr/share/doc/mpd/examples/mpd.conf.gz

to directory

~/.config/mpd

(make this dir first).

Edit the config file according to your needs. For example, my config looks like this:

music_directory     "~/Music"
playlist_directory  "~/Playlists"
db_file             "~/.local/share/mpd/mpd.db"
log_file            "~/.local/share/mpd/mpd.log"
pid_file            "~/.local/share/mpd/mpd.pid"
state_file          "~/.local/share/mpd/mpd.state"
sticker_file        "~/.local/share/mpd/sticker.sql"

bind_to_address     "127.0.0.1"
log_level           "default"
restore_paused      "yes"
metadata_to_use     "artist,album,title,track,date"
auto_update         "yes"

input {
        plugin "curl"
}

audio_output {
        type            "alsa"
        name            "Headset"
        mixer_type      "software"      
}

audio_output {
    type        "fifo"
    name        "mpd_fifo"
    path        "/tmp/mpd.fifo"
    format      "44100:16:2"
}

Don't forget to create the needed directories (~/Playlists and ~/.local/share/mpd)

Run mpd.

$ mpd

If everything is ok, it directly detaches itself. (so it looks like it exits). It might complain that the db_file cannot be found, you can safely ignore this.

In order to build the database file, MPD must scan into the music_directory. A MPD client is required to request this task, for example with mpc the command is

$ mpc update

.

You most likely want to have mpd started automatically when logging into tty. To start MPD on login add the following to

~/.profile

# MPD daemon start (if no other user instance exists)
[ ! -s ~/.config/mpd/pid ] && mpd

That's it. Now you can enjoy your favorite music.

P.S.

In this simple set up i use command line user interface for MPD server. Here you can see the commands used in mpc. But there are more clients in the official Devuan repository (TUI and GUI).

Last edited by Ogis1975 (2020-01-12 18:55:55)

---

What economists call over-production is but a production that is above the purchasing power of the worker, who is reduced to poverty by capital and state.
            ----+- Peter Kropotkin -+----

Nili

Member

From: $HOME/♫♪

Registered: 2016-12-01

Posts: 230  

Website

Re: Install music player daemon and set up it as a user service in Devuan

Thanks for sharing the guide Ogis1975, When it comes to cli audio player mpd (Daemon) is irreplaceable.

Last edited by Nili (2020-01-15 14:50:17)

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♪Mahara★Japaaan!

therion23

Member

Registered: 2019-07-05

Posts: 22  

Re: Install music player daemon and set up it as a user service in Devuan

Great! mpd is so fun to play with, and you can strip it down to 1mb if you do not need anything fancy.

Here is a system wide init script:

--CUT--

#!/bin/sh

### BEGIN INIT INFO
# Provides:          mpd
# Required-Start:    $local_fs $remote_fs
# Required-Stop:     $local_fs $remote_fs
# Should-Start:      autofs $network $named alsa-utils pulseaudio avahi-daemon
# Should-Stop:       autofs $network $named alsa-utils pulseaudio avahi-daemon
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Music Player Daemon
# Description:       Start the Music Player Daemon (MPD) service
#                    for network access to the local audio queue.
### END INIT INFO

. /lib/lsb/init-functions

PATH=/sbin:/bin:/usr/sbin:/usr/bin
NAME=mpd
DESC="Music Player Daemon"
DAEMON=/usr/local/bin/mpd
MPDCONF=/usr/local/etc/mpd.conf

# Exit if the package is not installed
[ -x "$DAEMON" ] || exit 0

# Read configuration variable file if it is present
[ -r /etc/default/$NAME ] && . /etc/default/$NAME

if [ -n "$MPD_DEBUG" ]; then
    set -x
    MPD_OPTS=--verbose
fi

PIDFILE=$(sed -n 's/^[[:space:]]*pid_file[[:space:]]*"\?\([^"]*\)\"\?/\1/p' $MPDCONF)

mpd_start () {
    log_daemon_msg "Starting $DESC" "$NAME"

    if [ -z "$PIDFILE" ]; then
        log_failure_msg \
            "$MPDCONF must have pid_file set; cannot start daemon."
        exit 1
    fi

    PIDDIR=$(dirname "$PIDFILE")
    if [ ! -d "$PIDDIR" ]; then
        mkdir -m 0755 $PIDDIR
        if dpkg-statoverride --list --quiet /run/mpd > /dev/null; then
            # if dpkg-statoverride is used update it with permissions there
            dpkg-statoverride --force --quiet --update --add $( dpkg-statoverride --list --quiet /run/mpd ) 2> /dev/null
        else
            # use defaults
            chown mpd:audio $PIDDIR
        fi
    fi

    start-stop-daemon --start --quiet --oknodo --pidfile "$PIDFILE" \
        --exec "$DAEMON" -- $MPD_OPTS "$MPDCONF" &
    log_end_msg $?
}

mpd_stop () {
    if [ -z "$PIDFILE" ]; then
        log_failure_msg \
            "$MPDCONF must have pid_file set; cannot stop daemon."
        exit 1
    fi

    log_daemon_msg "Stopping $DESC" "$NAME"
    start-stop-daemon --stop --quiet --oknodo --retry 5 --pidfile "$PIDFILE" \
        --exec $DAEMON
    log_end_msg $?
}

# note to self: don't call the non-standard args for this in
# {post,pre}{inst,rm} scripts since users are not forced to upgrade
# /etc/init.d/mpd when mpd is updated
case "$1" in
    start)
        mpd_start
        ;;
    stop)
        mpd_stop
        ;;
    status)
    	status_of_proc -p $PIDFILE $DAEMON $NAME
	;;
    restart|force-reload)
        mpd_stop
        mpd_start
        ;;
    force-start)
        mpd_start
        ;;
    force-restart)
        mpd_stop
        mpd_start
        ;;
    force-reload)
	mpd_stop
	mpd_start
	;;
    *)
        echo "Usage: $0 {start|stop|restart|force-reload}"
        exit 2
        ;;
esac

--CUT--

therion23

Member

Registered: 2019-07-05

Posts: 22  

Re: Install music player daemon and set up it as a user service in Devuan

And my /etc/asound.conf - this gives you OSS emulation and "native" ALSA with separate volume controls. Note: you have to use them before they show up in alsamixer.

-- CUT --

pcm.softvol {
    type softvol
    slave {
        pcm "dmix"
    }
    control {
        name "Default Playback Volume"
        card 0
    }
}
       
pcm.!default {
    type plug
    slave.pcm "softvol"
}

pcm.dsp0 {
    type plug
    slave.pcm "dmix"
    control.name "sbagen"
    control.card 0
}

# MPD volume
pcm.mpd {
        type softvol
        slave.pcm "plug:dmix"
        control.name "MPD Playback Volume"
        control.card 0
}

ctl.mpd {
        type hw
        card 0
}

-- CUT --

PS: Remember to install alsa-oss before trying this!

Last edited by therion23 (2020-02-07 06:43:51)

Ogis1975

Member

Registered: 2017-04-21

Posts: 307  

Website

Re: Install music player daemon and set up it as a user service in Devuan

Thank you, therion23, for your configs. In near future i will try this.

---

What economists call over-production is but a production that is above the purchasing power of the worker, who is reduced to poverty by capital and state.
            ----+- Peter Kropotkin -+----

therion23

Member

Registered: 2019-07-05

Posts: 22  

Re: Install music player daemon and set up it as a user service in Devuan

Most welcome - especially the softvol "trick" is necessary for certain Raspberry Pi DAC's without hardware volume (the pHAT DAC and some Hifiberry models, for instance).

Vernon

Member

Registered: 2020-07-19

Posts: 89  

Re: Install music player daemon and set up it as a user service in Devuan

This short guide  describes how to install mpd as a user service in Devuan 2.1 (ascii).
Install mpd and mpc

#apt install mpd mpc

Mpc is a command line user interface for MPD server.

My favorite front end for MPD is YMPD. https://www.ympd.org/

• Written in C

• Very Lightweight and extremely fast

• Built in Web server - no external web server neede

• Uses HTM5 and WebSockets

Have MPD and YMPD installed on a couple of PI Zeros. One PI Zero with a 5 dollar USB Sound card is connected to an original Bose Wave Radio and the other is connected to my Biuetooth Speaker.

I have built is on Raspbian so it should build fine on Devuan as well.

Ogis1975

Member

Registered: 2017-04-21

Posts: 307  

Website

Re: Install music player daemon and set up it as a user service in Devuan

Thank you for the info, Vernon

---

What economists call over-production is but a production that is above the purchasing power of the worker, who is reduced to poverty by capital and state.
            ----+- Peter Kropotkin -+----