michael/discord-screenaudio
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start virtmic with no target when audio capture is requested

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This commit is contained in:
Malte Jürgens 2022-07-26 16:02:36 +02:00
parent a814d9cc1b
commit 6492cb9a35
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GPG key ID: D29FBD5F93C0CFC3
2 changed files with 59 additions and 48 deletions
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9
src/discordpage.cpp
View file

@ -63,6 +63,15 @@ void DiscordPage::featurePermissionRequested(const QUrl &securityOrigin,
// Allow every permission asked
setFeaturePermission(securityOrigin, feature,
QWebEnginePage::PermissionGrantedByUser);
if (feature == QWebEnginePage::Feature::MediaAudioCapture) {
if (m_virtmicProcess.state() == QProcess::NotRunning) {
qDebug() << "[virtmic] Starting Virtmic with no target to make sure "
"Discord can find all the audio devices";
m_virtmicProcess.start(QApplication::arguments()[0],
{"--virtmic", "None"});
}
}
}
bool DiscordPage::acceptNavigationRequest(const QUrl &url,

98
src/virtmic.cpp
View file

@ -90,58 +90,60 @@ void start(QString _target) {
{"audio.position", "FL,FR"}},
pipewire::node::type, pipewire::node::version, false);
auto reg_events = reg.listen<pipewire::registry_listener>();
reg_events.on<pipewire::registry_event::global>(
[&](const pipewire::global &global) {
if (global.type == pipewire::node::type) {
auto node = reg.bind<pipewire::node>(global.id);
std::cout << "[virtmic] "
<< "Added : " << node.info().props["node.name"]
<< std::endl;
if (target != "None") {
auto reg_events = reg.listen<pipewire::registry_listener>();
reg_events.on<pipewire::registry_event::global>(
[&](const pipewire::global &global) {
if (global.type == pipewire::node::type) {
auto node = reg.bind<pipewire::node>(global.id);
std::cout << "[virtmic] "
<< "Added : " << node.info().props["node.name"]
<< std::endl;
if (!nodes.count(global.id)) {
nodes.emplace(global.id, node.info());
link(target, core);
}
}
if (global.type == pipewire::port::type) {
auto port = reg.bind<pipewire::port>(global.id);
auto info = port.info();
if (info.props.count("node.id")) {
auto node_id = std::stoul(info.props["node.id"]);
if (node_id == virtual_mic.id() &&
info.direction == pipewire::port_direction::input) {
if (info.props["audio.channel"] == "FL") {
virt_fl = std::make_unique<pipewire::port>(std::move(port));
} else {
virt_fr = std::make_unique<pipewire::port>(std::move(port));
}
} else {
ports.emplace(global.id, std::move(port));
if (!nodes.count(global.id)) {
nodes.emplace(global.id, node.info());
link(target, core);
}
link(target, core);
}
}
});
if (global.type == pipewire::port::type) {
auto port = reg.bind<pipewire::port>(global.id);
auto info = port.info();
reg_events.on<pipewire::registry_event::global_removed>(
[&](const std::uint32_t id) {
if (nodes.count(id)) {
auto info = nodes.at(id);
std::cout << "[virtmic] "
<< "Removed: " << info.props["node.name"] << std::endl;
nodes.erase(id);
}
if (ports.count(id)) {
ports.erase(id);
}
if (links.count(id)) {
links.erase(id);
}
});
if (info.props.count("node.id")) {
auto node_id = std::stoul(info.props["node.id"]);
if (node_id == virtual_mic.id() &&
info.direction == pipewire::port_direction::input) {
if (info.props["audio.channel"] == "FL") {
virt_fl = std::make_unique<pipewire::port>(std::move(port));
} else {
virt_fr = std::make_unique<pipewire::port>(std::move(port));
}
} else {
ports.emplace(global.id, std::move(port));
}
link(target, core);
}
}
});
reg_events.on<pipewire::registry_event::global_removed>(
[&](const std::uint32_t id) {
if (nodes.count(id)) {
auto info = nodes.at(id);
std::cout << "[virtmic] "
<< "Removed: " << info.props["node.name"] << std::endl;
nodes.erase(id);
}
if (ports.count(id)) {
ports.erase(id);
}
if (links.count(id)) {
links.erase(id);
}
});
}
while (true) {
main_loop.run();