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|
{ config, lib, pkgs, ... }:
with lib;
let
pkg = pkgs.pulseaudioLight;
runDir = "/run/pulse";
alsaConf = pkgs.writeText "asound.conf" ''
ctl_type.pulse {
libs.native = ${pkgs.alsaPlugins}/lib/alsa-lib/libasound_module_ctl_pulse.so;
}
pcm_type.pulse {
libs.native = ${pkgs.alsaPlugins}/lib/alsa-lib/libasound_module_pcm_pulse.so;
}
ctl.!default {
type pulse
}
pcm.!default {
type pulse
}
'';
clientConf = pkgs.writeText "client.conf" ''
autospawn=no
default-server = unix:${runDir}/socket
'';
configFile = pkgs.writeText "default.pa" ''
.include ${pkg}/etc/pulse/default.pa
load-module ${toString [
"module-native-protocol-unix"
"auth-anonymous=1"
"socket=${runDir}/socket"
]}
'';
in
{
environment = {
etc = {
"asound.conf".source = alsaConf;
# XXX mkForce is not strong enough (and neither is mkOverride) to create
# /etc/pulse/client.conf, see pulseaudio-hack below for a solution.
#"pulse/client.conf" = mkForce { source = clientConf; };
#"pulse/client.conf".source = mkForce clientConf;
"pulse/default.pa".source = configFile;
};
systemPackages = [ pkg ];
};
# Allow PulseAudio to get realtime priority using rtkit.
security.rtkit.enable = true;
system.activationScripts.pulseaudio-hack = ''
ln -fns ${clientConf} /etc/pulse/client.conf
'';
systemd.services.pulse = {
wantedBy = [ "sound.target" ];
before = [ "sound.target" ];
environment = {
PULSE_RUNTIME_PATH = "${runDir}/home";
};
serviceConfig = {
ExecStart = "${pkg}/bin/pulseaudio";
ExecStartPre = pkgs.writeScript "pulse-start" ''
#! /bin/sh
install -o pulse -g pulse -m 0750 -d ${runDir}
install -o pulse -g pulse -m 0700 -d ${runDir}/home
'';
PermissionsStartOnly = "true";
User = "pulse";
};
};
users = {
groups.pulse.gid = config.users.users.pulse.uid;
users.pulse = {
uid = genid "pulse";
group = "pulse";
extraGroups = [ "audio" ];
home = "${runDir}/home";
};
};
}
|
