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nixpkgs/nixos/modules/services/desktops/pipewire/pipewire-media-session.nix
talyz 2a3c276b53
nixos/pipewire: Use formats.json, stricter typing, line breaks
The upstream pipewire config is written in an almost, but not quite
JSON format. The parser accepts standard JSON, though, so we don't
need to write our file in the same nonstandard version.

The typing for all config options is changed from `types.attrs`, which
behaves poorly when the option is set from multiple locations, to the
formats.json-type.

Also, rewrite some very long one-liners for improved readability.
2021-04-01 12:08:29 +02:00

130 lines
4.5 KiB
Nix

# pipewire example session manager.
{ config, lib, pkgs, ... }:
with lib;
let
json = pkgs.formats.json {};
cfg = config.services.pipewire.media-session;
enable32BitAlsaPlugins = cfg.alsa.support32Bit
&& pkgs.stdenv.isx86_64
&& pkgs.pkgsi686Linux.pipewire != null;
# Use upstream config files passed through spa-json-dump as the base
# Patched here as necessary for them to work with this module
defaults = {
alsa-monitor = (builtins.fromJSON (builtins.readFile ./alsa-monitor.conf.json));
bluez-monitor = (builtins.fromJSON (builtins.readFile ./bluez-monitor.conf.json));
media-session = (builtins.fromJSON (builtins.readFile ./media-session.conf.json));
v4l2-monitor = (builtins.fromJSON (builtins.readFile ./v4l2-monitor.conf.json));
};
configs = {
alsa-monitor = recursiveUpdate defaults.alsa-monitor cfg.config.alsa-monitor;
bluez-monitor = recursiveUpdate defaults.bluez-monitor cfg.config.bluez-monitor;
media-session = recursiveUpdate defaults.media-session cfg.config.media-session;
v4l2-monitor = recursiveUpdate defaults.v4l2-monitor cfg.config.v4l2-monitor;
};
in {
meta = {
maintainers = teams.freedesktop.members;
};
###### interface
options = {
services.pipewire.media-session = {
enable = mkOption {
type = types.bool;
default = config.services.pipewire.enable;
defaultText = "config.services.pipewire.enable";
description = "Example pipewire session manager";
};
package = mkOption {
type = types.package;
default = pkgs.pipewire.mediaSession;
example = literalExample "pkgs.pipewire.mediaSession";
description = ''
The pipewire-media-session derivation to use.
'';
};
config = {
media-session = mkOption {
type = json.type;
description = ''
Configuration for the media session core. For details see
https://gitlab.freedesktop.org/pipewire/pipewire/-/blob/${cfg.package.version}/src/daemon/media-session.d/media-session.conf
'';
default = {};
};
alsa-monitor = mkOption {
type = json.type;
description = ''
Configuration for the alsa monitor. For details see
https://gitlab.freedesktop.org/pipewire/pipewire/-/blob/${cfg.package.version}/src/daemon/media-session.d/alsa-monitor.conf
'';
default = {};
};
bluez-monitor = mkOption {
type = json.type;
description = ''
Configuration for the bluez5 monitor. For details see
https://gitlab.freedesktop.org/pipewire/pipewire/-/blob/${cfg.package.version}/src/daemon/media-session.d/bluez-monitor.conf
'';
default = {};
};
v4l2-monitor = mkOption {
type = json.type;
description = ''
Configuration for the V4L2 monitor. For details see
https://gitlab.freedesktop.org/pipewire/pipewire/-/blob/${cfg.package.version}/src/daemon/media-session.d/v4l2-monitor.conf
'';
default = {};
};
};
};
};
###### implementation
config = mkIf cfg.enable {
environment.systemPackages = [ cfg.package ];
systemd.packages = [ cfg.package ];
systemd.user.services.pipewire-media-session.wantedBy = [ "pipewire.service" ];
environment.etc."pipewire/media-session.d/media-session.conf" = {
source = json.generate "media-session.conf" configs.media-session;
};
environment.etc."pipewire/media-session.d/v4l2-monitor.conf" = {
source = json.generate "v4l2-monitor.conf" configs.v4l2-monitor;
};
environment.etc."pipewire/media-session.d/with-alsa" =
mkIf config.services.pipewire.alsa.enable {
text = "";
};
environment.etc."pipewire/media-session.d/alsa-monitor.conf" =
mkIf config.services.pipewire.alsa.enable {
source = json.generate "alsa-monitor.conf" configs.alsa-monitor;
};
environment.etc."pipewire/media-session.d/with-pulseaudio" =
mkIf config.services.pipewire.pulse.enable {
text = "";
};
environment.etc."pipewire/media-session.d/bluez-monitor.conf" =
mkIf config.services.pipewire.pulse.enable {
source = json.generate "bluez-monitor.conf" configs.bluez-monitor;
};
environment.etc."pipewire/media-session.d/with-jack" =
mkIf config.services.pipewire.jack.enable {
text = "";
};
};
}