Dev1 Galaxy Forum / Install music player daemon and set up it as a user service in Devuan

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

dummy@example.com (Ogis1975) — Sun, 02 Aug 2020 16:46:43 +0000

Thank you for the info, Vernon

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

dummy@example.com (Vernon) — Fri, 24 Jul 2020 20:37:08 +0000

Ogis1975 wrote:

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.

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

dummy@example.com (therion23) — Mon, 10 Feb 2020 22:00:46 +0000

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).

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

dummy@example.com (Ogis1975) — Mon, 10 Feb 2020 15:05:02 +0000

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

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

dummy@example.com (therion23) — Fri, 07 Feb 2020 06:34:21 +0000

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!

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

dummy@example.com (therion23) — Fri, 07 Feb 2020 03:30:52 +0000

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--

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

dummy@example.com (Nili) — Wed, 15 Jan 2020 14:49:40 +0000

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

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

dummy@example.com (Ogis1975) — Sun, 12 Jan 2020 18:47:48 +0000

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).