feat: add PipeWire adapter

build-aux/flatpak/ca.andyholmes.Valent.json

@@ -9,6 +9,7 @@
         "--env=PULSE_PROP_media.category=Manager",
         "--filesystem=xdg-download",
         "--filesystem=xdg-run/gvfsd",
+        "--filesystem=xdg-run/pipewire-0:ro",
         "--own-name=org.mpris.MediaPlayer2.Valent",
         "--share=ipc",
         "--share=network",
@@ -201,6 +202,34 @@
                 }
             ]
         },
+        {
+            "name" : "pipewire",
+            "buildsystem" : "meson",
+            "builddir" : true,
+            "config-opts" : [
+                "-Dgstreamer=disabled",
+                "-Dman=disabled",
+                "-Dsystemd=disabled",
+                "-Dudev=disabled",
+                "-Dudevrulesdir=disabled",
+                "-Dsession-managers=[]",
+                "-Djack=enabled"
+            ],
+            "sources" : [
+                {
+                    "type" : "git",
+                    "url" : "https://gitlab.freedesktop.org/pipewire/pipewire.git",
+                    "commit" : "9f7d60c1e84cc0481afc3f6ccf76e127567943a8",
+                    "tag" : "0.3.70",
+                    "x-checker-data" : {
+                        "type" : "anitya",
+                        "project-id" : 57357,
+                        "stable-only" : true,
+                        "tag-template" : "$version"
+                    }
+                }
+            ]
+        },
         {
             "name" : "valent",
             "buildsystem" : "meson",

meson.build

@@ -93,6 +93,8 @@ project_c_args = [
   '-DGLIB_VERSION_MIN_REQUIRED=GLIB_VERSION_2_72',
   '-DGLIB_VERSION_MAX_ALLOWED=GLIB_VERSION_2_72',
   '-DGDK_VERSION_MIN_REQUIRED=GDK_VERSION_4_8',
+
+  '-Wno-error=analyzer-va-arg-type-mismatch',
 ]
 project_link_args = [
   '-Wl,-z,relro',

meson_options.txt

@@ -170,6 +170,12 @@ option('plugin_ping',
         value: true,
 )
 
+option('plugin_pipewire',
+  description: 'Enable Pipewire plugin',
+         type: 'boolean',
+        value: true,
+)
+
 option('plugin_presenter',
   description: 'Enable Presenter plugin',
          type: 'boolean',

src/plugins/meson.build

@@ -25,6 +25,7 @@ plugins = [
   'notification',
   'photo',
   'ping',
+  'pipewire',
   'presenter',
   'pulseaudio',
   'runcommand',

src/plugins/pipewire/meson.build

@@ -0,0 +1,48 @@
+# SPDX-License-Identifier: GPL-3.0-or-later
+# SPDX-FileCopyrightText: Andy Holmes <andrew.g.r.holmes@gmail.com>
+
+# pipewire (Pipewire)
+libpipewire_dep = dependency('libpipewire-0.3', version: '>= 0.3')
+
+# Dependencies
+plugin_pipewire_deps = [
+  libvalent_dep,
+
+  libpipewire_dep,
+]
+
+# Sources
+plugin_pipewire_sources = files([
+  'pipewire-plugin.c',
+  'valent-pipewire-mixer.c',
+  'valent-pipewire-stream.c',
+])
+
+plugin_pipewire_include_directories = [include_directories('.')]
+
+# Resources
+plugin_pipewire_info = i18n.merge_file(
+   input: 'pipewire.plugin.desktop.in',
+  output: 'pipewire.plugin',
+  po_dir: po_dir,
+    type: 'desktop',
+)
+
+plugin_pipewire_resources = gnome.compile_resources('pipewire-resources',
+                                                    'pipewire.gresource.xml',
+        c_name: 'pipewire',
+  dependencies: [plugin_pipewire_info],
+)
+plugin_pipewire_sources += plugin_pipewire_resources
+
+# Static Build
+plugin_pipewire = static_library('plugin-pipewire',
+                                 plugin_pipewire_sources,
+  include_directories: plugin_pipewire_include_directories,
+         dependencies: plugin_pipewire_deps,
+               c_args: plugins_c_args + release_args,
+)
+
+#plugins_link_args += ['-Wl,--undefined=valent_pipewire_plugin_register_types']
+plugins_static += [plugin_pipewire]
+

src/plugins/pipewire/pipewire-plugin.c

@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-FileCopyrightText: Andy Holmes <andrew.g.r.holmes@gmail.com>
+
+#include "config.h"
+
+#include <libpeas/peas.h>
+#include <valent.h>
+
+#include "valent-pipewire-mixer.h"
+
+
+G_MODULE_EXPORT void
+valent_pipewire_plugin_register_types (PeasObjectModule *module)
+{
+  peas_object_module_register_extension_type (module,
+                                              VALENT_TYPE_MIXER_ADAPTER,
+                                              VALENT_TYPE_PIPEWIRE_MIXER);
+}

src/plugins/pipewire/pipewire.gresource.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!-- SPDX-License-Identifier: GPL-3.0-or-later -->
+<!-- SPDX-FileCopyrightText: Andy Holmes <andrew.g.r.holmes@gmail.com> -->
+
+<gresources>
+  <gresource prefix="/plugins/pipewire">
+    <file>pipewire.plugin</file>
+  </gresource>
+  <gresource prefix="/ca/andyholmes/Valent/icons">
+    <file preprocess="xml-stripblanks" alias="scalable/apps/valent-pipewire-plugin-symbolic.svg">data/valent-pipewire-plugin-symbolic.svg</file>
+  </gresource>
+</gresources>
+

src/plugins/pipewire/pipewire.plugin.desktop.in

@@ -0,0 +1,15 @@
+# SPDX-License-Identifier: GPL-3.0-or-later
+# SPDX-FileCopyrightText: Andy Holmes <andrew.g.r.holmes@gmail.com>
+
+[Plugin]
+Module=pipewire
+Name=PipeWire
+Description=Integration with PipeWire
+Icon=valent-pipewire-plugin-symbolic
+Builtin=true
+Embedded=valent_pipewire_plugin_register_types
+Website=https://github.com/andyholmes/valent
+Help=https://github.com/andyholmes/valent
+Hidden=false
+X-MixerAdapterPriority=50
+