service/mic: actually use the specified device

src/audio_core/cubeb_input.cpp

@@ -2,6 +2,7 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
+#include <utility>
 #include <vector>
 #include <cubeb/cubeb.h>
 #include "audio_core/cubeb_input.h"
@@ -23,7 +24,8 @@ struct CubebInput::Impl {
     static void StateCallback(cubeb_stream* stream, void* user_data, cubeb_state state);
 };
 
-CubebInput::CubebInput() : impl(std::make_unique<Impl>()) {
+CubebInput::CubebInput(std::string device_id)
+    : impl(std::make_unique<Impl>()), device_id(std::move(device_id)) {
     if (cubeb_init(&impl->ctx, "Citra Input", nullptr) != CUBEB_OK) {
         LOG_ERROR(Audio, "cubeb_init failed! Mic will not work properly");
         return;
@@ -56,6 +58,23 @@ void CubebInput::StartSampling(const Frontend::Mic::Parameters& params) {
     is_sampling = true;
 
     cubeb_devid input_device = nullptr;
+    if (device_id != Frontend::Mic::default_device_name && !device_id.empty()) {
+        cubeb_device_collection collection;
+        if (cubeb_enumerate_devices(impl->ctx, CUBEB_DEVICE_TYPE_INPUT, &collection) != CUBEB_OK) {
+            LOG_WARNING(Audio, "Audio input device enumeration not supported");
+        } else {
+            const auto collection_end = collection.device + collection.count;
+            const auto device = std::find_if(
+                collection.device, collection_end, [this](const cubeb_device_info& info) {
+                    return info.friendly_name != nullptr && device_id == info.friendly_name;
+                });
+            if (device != collection_end) {
+                input_device = device->devid;
+            }
+            cubeb_device_collection_destroy(impl->ctx, &collection);
+        }
+    }
+
     cubeb_stream_params input_params;
     input_params.channels = 1;
     input_params.layout = CUBEB_LAYOUT_UNDEFINED;

src/audio_core/cubeb_input.h

@@ -12,7 +12,7 @@ namespace AudioCore {
 
 class CubebInput final : public Frontend::Mic::Interface {
 public:
-    CubebInput();
+    explicit CubebInput(std::string device_id);
     ~CubebInput() override;
 
     void StartSampling(const Frontend::Mic::Parameters& params) override;
@@ -26,6 +26,7 @@ public:
 private:
     struct Impl;
     std::unique_ptr<Impl> impl;
+    std::string device_id;
 };
 
 std::vector<std::string> ListCubebInputDevices();

src/citra/config.cpp

@@ -13,6 +13,7 @@
 #include "common/file_util.h"
 #include "common/logging/log.h"
 #include "common/param_package.h"
+#include "core/frontend/mic.h"
 #include "core/hle/service/service.h"
 #include "core/settings.h"
 #include "input_common/main.h"
@@ -178,7 +179,7 @@ void Config::ReadValues() {
     Settings::values.audio_device_id = sdl2_config->GetString("Audio", "output_device", "auto");
     Settings::values.volume = static_cast<float>(sdl2_config->GetReal("Audio", "volume", 1));
     Settings::values.mic_input_device =
-        sdl2_config->GetString("Audio", "mic_input_device", "Default");
+        sdl2_config->GetString("Audio", "mic_input_device", Frontend::Mic::default_device_name);
     Settings::values.mic_input_type =
         static_cast<Settings::MicInputType>(sdl2_config->GetInteger("Audio", "mic_input_type", 0));
 

src/citra_qt/configuration/config.cpp

@@ -10,6 +10,7 @@
 #include "citra_qt/configuration/config.h"
 #include "citra_qt/uisettings.h"
 #include "common/file_util.h"
+#include "core/frontend/mic.h"
 #include "core/hle/service/service.h"
 #include "input_common/main.h"
 #include "input_common/udp/client.h"
@@ -114,7 +115,7 @@ void Config::ReadAudioValues() {
     Settings::values.mic_input_type = static_cast<Settings::MicInputType>(
         ReadSetting(QStringLiteral("mic_input_type"), 0).toInt());
     Settings::values.mic_input_device =
-        ReadSetting(QStringLiteral("mic_input_device"), QStringLiteral("Default"))
+        ReadSetting(QStringLiteral("mic_input_device"), Frontend::Mic::default_device_name)
             .toString()
             .toStdString();
 
@@ -628,7 +629,7 @@ void Config::SaveAudioValues() {
     WriteSetting(QStringLiteral("volume"), Settings::values.volume, 1.0f);
     WriteSetting(QStringLiteral("mic_input_device"),
                  QString::fromStdString(Settings::values.mic_input_device),
-                 QStringLiteral("Default"));
+                 Frontend::Mic::default_device_name);
     WriteSetting(QStringLiteral("mic_input_type"),
                  static_cast<int>(Settings::values.mic_input_type), 0);
 

src/citra_qt/configuration/configure_audio.cpp

@@ -11,9 +11,12 @@
 #include "audio_core/sink_details.h"
 #include "citra_qt/configuration/configure_audio.h"
 #include "core/core.h"
+#include "core/frontend/mic.h"
 #include "core/settings.h"
 #include "ui_configure_audio.h"
 
+constexpr int DEFAULT_INPUT_DEVICE_INDEX = 0;
+
 ConfigureAudio::ConfigureAudio(QWidget* parent)
     : QWidget(parent), ui(std::make_unique<Ui::ConfigureAudio>()) {
     ui->setupUi(this);
@@ -75,8 +78,7 @@ void ConfigureAudio::SetConfiguration() {
 
     int index = static_cast<int>(Settings::values.mic_input_type);
     ui->input_type_combo_box->setCurrentIndex(index);
-    ui->input_device_combo_box->setCurrentText(
-        QString::fromStdString(Settings::values.mic_input_device));
+
     UpdateAudioInputDevices(index);
 }
 
@@ -126,7 +128,12 @@ void ConfigureAudio::ApplyConfiguration() {
     Settings::values.enable_dsp_lle_multithread = ui->emulation_combo_box->currentIndex() == 2;
     Settings::values.mic_input_type =
         static_cast<Settings::MicInputType>(ui->input_type_combo_box->currentIndex());
-    Settings::values.mic_input_device = ui->input_device_combo_box->currentText().toStdString();
+
+    if (ui->input_device_combo_box->currentIndex() == DEFAULT_INPUT_DEVICE_INDEX) {
+        Settings::values.mic_input_device = Frontend::Mic::default_device_name;
+    } else {
+        Settings::values.mic_input_device = ui->input_device_combo_box->currentText().toStdString();
+    }
 }
 
 void ConfigureAudio::UpdateAudioOutputDevices(int sink_index) {
@@ -139,7 +146,12 @@ void ConfigureAudio::UpdateAudioOutputDevices(int sink_index) {
     }
 }
 
-void ConfigureAudio::UpdateAudioInputDevices(int index) {}
+void ConfigureAudio::UpdateAudioInputDevices(int index) {
+    if (Settings::values.mic_input_device != Frontend::Mic::default_device_name) {
+        ui->input_device_combo_box->setCurrentText(
+            QString::fromStdString(Settings::values.mic_input_device));
+    }
+}
 
 void ConfigureAudio::RetranslateUI() {
     ui->retranslateUi(this);

src/core/frontend/mic.h

@@ -11,6 +11,8 @@
 
 namespace Frontend::Mic {
 
+constexpr char default_device_name[] = "Default";
+
 enum class Signedness : u8 {
     Signed,
     Unsigned,

src/core/hle/service/mic_u.cpp

@@ -326,7 +326,7 @@ struct MIC_U::Impl {
             break;
         case Settings::MicInputType::Real:
 #if HAVE_CUBEB
-            new_mic = std::make_unique<AudioCore::CubebInput>();
+            new_mic = std::make_unique<AudioCore::CubebInput>(Settings::values.mic_input_device);
 #else
             new_mic = std::make_unique<Frontend::Mic::NullMic>();
 #endif