use rohrkabel as submodule and update it to v1.2

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "submodules/rohrkabel"]
+	path = submodules/rohrkabel
+	url = https://github.com/Soundux/rohrkabel

CMakeLists.txt

@@ -22,14 +22,26 @@ set(discord-screenaudio_SRC
   resources.qrc
 )
 
-include(FetchContent)
+# Adapted from https://cliutils.gitlab.io/modern-cmake/chapters/projects/submodule.html
+find_package(Git QUIET)
+if(GIT_FOUND AND EXISTS "${PROJECT_SOURCE_DIR}/.git")
+  option(GIT_SUBMODULE "Check submodules during build" ON)
+  if(GIT_SUBMODULE)
+    message(STATUS "Updating submodules")
+    execute_process(COMMAND ${GIT_EXECUTABLE} submodule update --init --recursive
+                    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+                    RESULT_VARIABLE GIT_SUBMOD_RESULT)
+    if(NOT GIT_SUBMOD_RESULT EQUAL "0")
+      message(FATAL_ERROR "`git submodule update --init --recursive` failed with ${GIT_SUBMOD_RESULT}, please provide the submodules manually")
+    endif()
+  endif()
+endif()
 
-FetchContent_Declare(
-  rohrkabel 
-  GIT_REPOSITORY "https://github.com/Soundux/rohrkabel" 
-  GIT_TAG "d87403f48d3a95aa4bcf4cd60112d9e4bb090d5d"
-)
-FetchContent_MakeAvailable(rohrkabel)
+if(NOT EXISTS "${PROJECT_SOURCE_DIR}/submodules/rohrkabel/CMakeLists.txt")
+  message(FATAL_ERROR "Rohrkabel was not found since you are not in a Git checkout or have GIT_SUBMODULE disabled. Please provide rohrkabel manually to `./submodules/rohrkabel`.")
+endif()
+
+add_subdirectory(submodules/rohrkabel)
 
 add_executable(discord-screenaudio ${discord-screenaudio_SRC})
 

src/discordpage.cpp

@@ -89,6 +89,7 @@ void DiscordPage::stopVirtmic() {
   if (m_virtmicProcess.state() == QProcess::Running) {
     qDebug() << "[virtmic] Stopping Virtmic";
     m_virtmicProcess.kill();
+    m_virtmicProcess.waitForFinished();
   }
 }
 

src/virtmic.cpp

@@ -1,5 +1,8 @@
 #include "virtmic.h"
 
+#include <rohrkabel/loop/main.hpp>
+#include <rohrkabel/registry/registry.hpp>
+
 namespace Virtmic {
 
 QVector<QString> getTargets() {
@@ -24,7 +27,7 @@ QVector<QString> getTargets() {
           }
         }
       });
-  core.sync();
+  core.update();
 
   return targets;
 }
@@ -67,12 +70,12 @@ void start(QString _target) {
                   << "Link   : " << target << ":" << port_id << " -> ";
 
         if (port.info().props["audio.channel"] == "FL") {
-          links.emplace(port_id, core.create<pipewire::link_factory>(
-                                     {virt_fl->info().id, port_id}));
+          links.emplace(port_id, core.create_simple<pipewire::link_factory>(
+                                     virt_fl->info().id, port_id));
           std::cout << "[virtmic] " << virt_fl->info().id << std::endl;
         } else {
-          links.emplace(port_id, core.create<pipewire::link_factory>(
-                                     {virt_fr->info().id, port_id}));
+          links.emplace(port_id, core.create_simple<pipewire::link_factory>(
+                                     virt_fr->info().id, port_id));
           std::cout << "[virtmic] " << virt_fr->info().id << std::endl;
         }
       }
@@ -81,16 +84,22 @@ void start(QString _target) {
 
   std::string target = _target.toLatin1().toStdString();
 
-  auto virtual_mic =
-      core.create("adapter",
+  auto virtual_mic = core.create("adapter",
                                  {{"node.name", "discord-screenaudio-virtmic"},
                                   {"media.class", "Audio/Source/Virtual"},
                                   {"factory.name", "support.null-audio-sink"},
                                   {"audio.channels", "2"},
                                   {"audio.position", "FL,FR"}},
-                  pipewire::node::type, pipewire::node::version, false);
+                                 pipewire::node::type, pipewire::node::version,
+                                 pipewire::update_strategy::none);
+
+  if (target == "None") {
+    while (true) {
+      main_loop.run();
+    }
+    return;
+  }
 
-  if (target != "None") {
   auto reg_events = reg.listen<pipewire::registry_listener>();
   reg_events.on<pipewire::registry_event::global>(
       [&](const pipewire::global &global) {
@@ -143,7 +152,6 @@ void start(QString _target) {
           links.erase(id);
         }
       });
-  }
 
   while (true) {
     main_loop.run();

src/virtmic.h

@@ -3,7 +3,6 @@
 #include <QString>
 #include <QVector>
 #include <iostream>
-#include <rohrkabel/registry/registry.hpp>
 
 namespace Virtmic {
 

submodules/rohrkabel

@@ -0,0 +1 @@
+Subproject commit a2d04d1e27a7b0aa2c2fe4de28b60ada22c7c348