Qt: Fix incorrect minimum latency display

src/duckstation-qt/audiosettingswidget.cpp

@@ -209,7 +209,8 @@ void AudioSettingsWidget::updateDeviceNames()
   const AudioBackend backend = getEffectiveBackend();
   const std::string driver_name = m_dialog->getEffectiveStringValue("Audio", "Driver", "");
   const std::string current_device = m_dialog->getEffectiveStringValue("Audio", "Device", "");
-  const std::vector<AudioStream::DeviceInfo> devices = AudioStream::GetOutputDevices(backend, driver_name.c_str());
+  const std::vector<AudioStream::DeviceInfo> devices =
+    AudioStream::GetOutputDevices(backend, driver_name.c_str(), SPU::SAMPLE_RATE);
 
   m_ui.outputDevice->disconnect();
   m_ui.outputDevice->clear();

src/util/audio_stream.cpp

@@ -88,14 +88,14 @@ std::vector<std::pair<std::string, std::string>> AudioStream::GetDriverNames(Aud
   return ret;
 }
 
-std::vector<AudioStream::DeviceInfo> AudioStream::GetOutputDevices(AudioBackend backend, const char* driver)
+std::vector<AudioStream::DeviceInfo> AudioStream::GetOutputDevices(AudioBackend backend, const char* driver, u32 sample_rate)
 {
   std::vector<AudioStream::DeviceInfo> ret;
   switch (backend)
   {
 #ifndef __ANDROID__
     case AudioBackend::Cubeb:
-      ret = GetCubebOutputDevices(driver);
+      ret = GetCubebOutputDevices(driver, sample_rate);
       break;
 #endif
 

src/util/audio_stream.h

@@ -192,7 +192,7 @@ public:
   void SetStretchMode(AudioStretchMode mode);
 
   static std::vector<std::pair<std::string, std::string>> GetDriverNames(AudioBackend backend);
-  static std::vector<DeviceInfo> GetOutputDevices(AudioBackend backend, const char* driver);
+  static std::vector<DeviceInfo> GetOutputDevices(AudioBackend backend, const char* driver, u32 sample_rate);
   static std::unique_ptr<AudioStream> CreateStream(AudioBackend backend, u32 sample_rate,
                                                    const AudioStreamParameters& parameters, const char* driver_name,
                                                    const char* device_name, Error* error = nullptr);
@@ -242,7 +242,7 @@ private:
 
 #ifndef __ANDROID__
   static std::vector<std::pair<std::string, std::string>> GetCubebDriverNames();
-  static std::vector<DeviceInfo> GetCubebOutputDevices(const char* driver);
+  static std::vector<DeviceInfo> GetCubebOutputDevices(const char* driver, u32 sample_rate);
   static std::unique_ptr<AudioStream> CreateCubebAudioStream(u32 sample_rate, const AudioStreamParameters& parameters,
                                                              const char* driver_name, const char* device_name,
                                                              Error* error);

src/util/cubeb_audio_stream.cpp

@@ -311,7 +311,7 @@ std::vector<std::pair<std::string, std::string>> AudioStream::GetCubebDriverName
   return names;
 }
 
-std::vector<AudioStream::DeviceInfo> AudioStream::GetCubebOutputDevices(const char* driver)
+std::vector<AudioStream::DeviceInfo> AudioStream::GetCubebOutputDevices(const char* driver, u32 sample_rate)
 {
   std::vector<AudioStream::DeviceInfo> ret;
   ret.emplace_back(std::string(), TRANSLATE_STR("AudioStream", "Default"), 0);
@@ -339,7 +339,7 @@ std::vector<AudioStream::DeviceInfo> AudioStream::GetCubebOutputDevices(const ch
   // we need stream parameters to query latency
   cubeb_stream_params params = {};
   params.format = CUBEB_SAMPLE_S16LE;
-  params.rate = 48000;
+  params.rate = sample_rate;
   params.channels = 2;
   params.layout = CUBEB_LAYOUT_UNDEFINED;
   params.prefs = CUBEB_STREAM_PREF_NONE;