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AudioCommon: Implement WASAPI

This commit is contained in:
spycrab 2018-02-10 21:03:27 +01:00
parent 92ec97f899
commit a196dfe50d
10 changed files with 600 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
Source/Core/AudioCommon/AudioCommon.cpp
View File

@ -10,6 +10,7 @@
#include "AudioCommon/OpenALStream.h"
#include "AudioCommon/OpenSLESStream.h"
#include "AudioCommon/PulseAudioStream.h"
#include "AudioCommon/WASAPIStream.h"
#include "AudioCommon/XAudio2Stream.h"
#include "AudioCommon/XAudio2_7Stream.h"
#include "Common/Common.h"
@ -50,6 +51,8 @@ void InitSoundStream()
g_sound_stream = std::make_unique<PulseAudio>();
else if (backend == BACKEND_OPENSLES && OpenSLESStream::isValid())
g_sound_stream = std::make_unique<OpenSLESStream>();
else if (backend == BACKEND_WASAPI && WASAPIStream::isValid())
g_sound_stream = std::make_unique<WASAPIStream>();
if (!g_sound_stream || !g_sound_stream->Init())
{
@ -110,6 +113,9 @@ std::vector<std::string> GetSoundBackends()
backends.push_back(BACKEND_OPENAL);
if (OpenSLESStream::isValid())
backends.push_back(BACKEND_OPENSLES);
if (WASAPIStream::isValid())
backends.push_back(BACKEND_WASAPI);
return backends;
}
@ -128,7 +134,7 @@ bool SupportsDPL2Decoder(const std::string& backend)
bool SupportsLatencyControl(const std::string& backend)
{
return backend == BACKEND_OPENAL;
return backend == BACKEND_OPENAL || backend == BACKEND_WASAPI;
}
bool SupportsVolumeChanges(const std::string& backend)
@ -136,7 +142,8 @@ bool SupportsVolumeChanges(const std::string& backend)
// FIXME: this one should ask the backend whether it supports it.
// but getting the backend from string etc. is probably
// too much just to enable/disable a stupid slider...
return backend == BACKEND_CUBEB || backend == BACKEND_OPENAL || backend == BACKEND_XAUDIO2;
return backend == BACKEND_CUBEB || backend == BACKEND_OPENAL || backend == BACKEND_XAUDIO2 ||
backend == BACKEND_WASAPI;
}
void UpdateSoundStream()
@ -231,4 +238,4 @@ void ToggleMuteVolume()
isMuted = !isMuted;
UpdateSoundStream();
}
}
} // namespace AudioCommon

2
Source/Core/AudioCommon/AudioCommon.vcxproj
View File

@ -44,6 +44,7 @@
<ClCompile Include="Mixer.cpp" />
<ClCompile Include="NullSoundStream.cpp" />
<ClCompile Include="OpenALStream.cpp" />
<ClCompile Include="WASAPIStream.cpp" />
<ClCompile Include="WaveFile.cpp" />
<ClCompile Include="XAudio2Stream.cpp" />
<ClCompile Include="XAudio2_7Stream.cpp">
@ -63,6 +64,7 @@
<ClInclude Include="OpenSLESStream.h" />
<ClInclude Include="PulseAudioStream.h" />
<ClInclude Include="SoundStream.h" />
<ClInclude Include="WASAPIStream.h" />
<ClInclude Include="WaveFile.h" />
<ClInclude Include="XAudio2Stream.h" />
<ClInclude Include="XAudio2_7Stream.h" />

6
Source/Core/AudioCommon/AudioCommon.vcxproj.filters
View File

@ -27,6 +27,9 @@
<ClCompile Include="CubebStream.cpp">
<Filter>SoundStreams</Filter>
</ClCompile>
<ClCompile Include="WASAPIStream.cpp">
<Filter>SoundStreams</Filter>
</ClCompile>
</ItemGroup>
<ItemGroup>
<ClInclude Include="AudioCommon.h" />
@ -62,6 +65,9 @@
<ClInclude Include="CubebStream.h">
<Filter>SoundStreams</Filter>
</ClInclude>
<ClInclude Include="WASAPIStream.h">
<Filter>SoundStreams</Filter>
</ClInclude>
</ItemGroup>
<ItemGroup>
<Text Include="CMakeLists.txt" />

1
Source/Core/AudioCommon/CMakeLists.txt
View File

@ -47,6 +47,7 @@ else()
endif()
if(WIN32)
target_sources(audiocommon PRIVATE WASAPIStream.cpp)
target_sources(audiocommon PRIVATE XAudio2Stream.cpp)
add_library(audiocommon_xaudio27 "XAudio2_7Stream.cpp")

451
Source/Core/AudioCommon/WASAPIStream.cpp Normal file
View File

@ -0,0 +1,451 @@
// Copyright 2018 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include "AudioCommon/WASAPIStream.h"
#ifdef _WIN32
// clang-format off
#include <Audioclient.h>
#include <comdef.h>
#include <mmdeviceapi.h>
#include <devpkey.h>
#include <functiondiscoverykeys_devpkey.h>
#include <thread>
// clang-format on
#include "Common/Logging/Log.h"
#include "Common/StringUtil.h"
#include "Common/Thread.h"
#include "Core/ConfigManager.h"
#include "VideoCommon/OnScreenDisplay.h"
WASAPIStream::WASAPIStream()
{
CoInitialize(nullptr);
m_format.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
m_format.Format.nChannels = 2;
m_format.Format.nSamplesPerSec = GetMixer()->GetSampleRate();
m_format.Format.nAvgBytesPerSec = m_format.Format.nSamplesPerSec * 4;
m_format.Format.nBlockAlign = 4;
m_format.Format.wBitsPerSample = 16;
m_format.Format.cbSize = sizeof(WAVEFORMATEXTENSIBLE) - sizeof(WAVEFORMATEX);
m_format.Samples.wValidBitsPerSample = m_format.Format.wBitsPerSample;
m_format.dwChannelMask = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT;
m_format.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
}
WASAPIStream::~WASAPIStream()
{
if (m_enumerator)
m_enumerator->Release();
if (m_need_data_event)
CloseHandle(m_need_data_event);
if (m_running)
{
m_running = false;
if (m_thread.joinable())
m_thread.join();
}
CoUninitialize();
}
bool WASAPIStream::isValid()
{
return true;
}
static bool HandleWinAPI(std::string message, HRESULT result)
{
if (result != S_OK)
{
_com_error err(result);
std::string error = TStrToUTF8(err.ErrorMessage()).c_str();
switch (result)
{
case AUDCLNT_E_DEVICE_IN_USE:
error = "Audio endpoint already in use!";
break;
}
ERROR_LOG(AUDIO, "WASAPI: %s: %s", message.c_str(), error.c_str());
}
return result == S_OK;
}
std::vector<std::string> WASAPIStream::GetAvailableDevices()
{
CoInitialize(nullptr);
IMMDeviceEnumerator* enumerator = nullptr;
HRESULT result =
CoCreateInstance(__uuidof(MMDeviceEnumerator), nullptr, CLSCTX_INPROC_SERVER,
__uuidof(IMMDeviceEnumerator), reinterpret_cast<LPVOID*>(&enumerator));
if (!HandleWinAPI("Failed to create MMDeviceEnumerator", result))
return {};
std::vector<std::string> device_names;
IMMDeviceCollection* devices;
result = enumerator->EnumAudioEndpoints(eRender, DEVICE_STATE_ACTIVE, &devices);
if (!HandleWinAPI("Failed to get available devices", result))
{
CoUninitialize();
return {};
}
UINT count;
devices->GetCount(&count);
for (u32 i = 0; i < count; i++)
{
IMMDevice* device;
devices->Item(i, &device);
if (!HandleWinAPI("Failed to get device " + std::to_string(i), result))
continue;
LPWSTR device_id;
device->GetId(&device_id);
IPropertyStore* device_properties;
result = device->OpenPropertyStore(STGM_READ, &device_properties);
if (!HandleWinAPI("Failed to initialize IPropertyStore", result))
continue;
PROPVARIANT device_name;
PropVariantInit(&device_name);
device_properties->GetValue(PKEY_Device_FriendlyName, &device_name);
device_names.push_back(TStrToUTF8(device_name.pwszVal));
PropVariantClear(&device_name);
}
devices->Release();
enumerator->Release();
CoUninitialize();
return device_names;
}
IMMDevice* WASAPIStream::GetDeviceByName(std::string name)
{
CoInitialize(nullptr);
IMMDeviceEnumerator* enumerator = nullptr;
HRESULT result =
CoCreateInstance(__uuidof(MMDeviceEnumerator), nullptr, CLSCTX_INPROC_SERVER,
__uuidof(IMMDeviceEnumerator), reinterpret_cast<LPVOID*>(&enumerator));
if (!HandleWinAPI("Failed to create MMDeviceEnumerator", result))
return false;
IMMDeviceCollection* devices;
result = enumerator->EnumAudioEndpoints(eRender, DEVICE_STATE_ACTIVE, &devices);
if (!HandleWinAPI("Failed to get available devices", result))
{
return {};
}
UINT count;
devices->GetCount(&count);
for (u32 i = 0; i < count; i++)
{
IMMDevice* device;
devices->Item(i, &device);
if (!HandleWinAPI("Failed to get device " + std::to_string(i), result))
continue;
LPWSTR device_id;
device->GetId(&device_id);
IPropertyStore* device_properties;
result = device->OpenPropertyStore(STGM_READ, &device_properties);
if (!HandleWinAPI("Failed to initialize IPropertyStore", result))
continue;
PROPVARIANT device_name;
PropVariantInit(&device_name);
device_properties->GetValue(PKEY_Device_FriendlyName, &device_name);
if (TStrToUTF8(device_name.pwszVal) == name)
{
devices->Release();
enumerator->Release();
CoUninitialize();
return device;
}
PropVariantClear(&device_name);
}
devices->Release();
enumerator->Release();
CoUninitialize();
return nullptr;
}
bool WASAPIStream::Init()
{
HRESULT result =
CoCreateInstance(__uuidof(MMDeviceEnumerator), nullptr, CLSCTX_INPROC_SERVER,
__uuidof(IMMDeviceEnumerator), reinterpret_cast<LPVOID*>(&m_enumerator));
if (!HandleWinAPI("Failed to create MMDeviceEnumerator", result))
return false;
return true;
}
bool WASAPIStream::SetRunning(bool running)
{
if (running)
{
IMMDevice* device = nullptr;
HRESULT result;
if (SConfig::GetInstance().sWASAPIDevice == "default")
{
result = m_enumerator->GetDefaultAudioEndpoint(eRender, eConsole, &device);
}
else
{
result = S_OK;
device = GetDeviceByName(SConfig::GetInstance().sWASAPIDevice);
if (!device)
{
ERROR_LOG(AUDIO, "Can't find device '%s', falling back to default",
SConfig::GetInstance().sWASAPIDevice.c_str());
result = m_enumerator->GetDefaultAudioEndpoint(eRender, eConsole, &device);
}
}
if (!HandleWinAPI("Failed to obtain default endpoint", result))
return false;
LPWSTR device_id;
device->GetId(&device_id);
// Show a friendly name in the log
IPropertyStore* device_properties;
result = device->OpenPropertyStore(STGM_READ, &device_properties);
if (!HandleWinAPI("Failed to initialize IPropertyStore", result))
return false;
PROPVARIANT device_name;
PropVariantInit(&device_name);
device_properties->GetValue(PKEY_Device_FriendlyName, &device_name);
INFO_LOG(AUDIO, "Using audio endpoint '%s'", TStrToUTF8(device_name.pwszVal).c_str());
PropVariantClear(&device_name);
// Get IAudioDevice
result = device->Activate(__uuidof(IAudioClient), CLSCTX_INPROC_SERVER, nullptr,
reinterpret_cast<LPVOID*>(&m_audio_client));
if (!HandleWinAPI("Failed to activate IAudioClient", result))
{
device->Release();
return false;
}
REFERENCE_TIME device_period = 0;
result = m_audio_client->GetDevicePeriod(nullptr, &device_period);
device_period += SConfig::GetInstance().iLatency * (10000 / m_format.Format.nChannels);
INFO_LOG(AUDIO, "Audio period set to %d", device_period);
if (!HandleWinAPI("Failed to obtain device period", result))
{
device->Release();
m_audio_client->Release();
m_audio_client = nullptr;
return false;
}
result = m_audio_client->Initialize(
AUDCLNT_SHAREMODE_EXCLUSIVE,
AUDCLNT_STREAMFLAGS_EVENTCALLBACK | AUDCLNT_STREAMFLAGS_NOPERSIST, device_period,
device_period, reinterpret_cast<WAVEFORMATEX*>(&m_format), nullptr);
if (result == AUDCLNT_E_UNSUPPORTED_FORMAT)
{
OSD::AddMessage("Your current audio device doesn't support 16-bit 48000 hz PCM audio. WASAPI "
"exclusive mode won't work.",
6000U);
return false;
}
if (result == AUDCLNT_E_BUFFER_SIZE_NOT_ALIGNED)
{
result = m_audio_client->GetBufferSize(&m_frames_in_buffer);
m_audio_client->Release();
if (!HandleWinAPI("Failed to get aligned buffer size", result))
{
device->Release();
m_audio_client->Release();
m_audio_client = nullptr;
return false;
}
// Get IAudioDevice
result = device->Activate(__uuidof(IAudioClient), CLSCTX_INPROC_SERVER, nullptr,
reinterpret_cast<LPVOID*>(&m_audio_client));
if (!HandleWinAPI("Failed to reactivate IAudioClient", result))
{
device->Release();
return false;
}
device_period =
static_cast<REFERENCE_TIME>(
10000.0 * 1000 * m_frames_in_buffer / m_format.Format.nSamplesPerSec + 0.5) +
SConfig::GetInstance().iLatency * 10000;
result = m_audio_client->Initialize(
AUDCLNT_SHAREMODE_EXCLUSIVE,
AUDCLNT_STREAMFLAGS_EVENTCALLBACK | AUDCLNT_STREAMFLAGS_NOPERSIST, device_period,
device_period, reinterpret_cast<WAVEFORMATEX*>(&m_format), nullptr);
}
if (!HandleWinAPI("Failed to initialize IAudioClient", result))
{
device->Release();
m_audio_client->Release();
m_audio_client = nullptr;
return false;
}
result = m_audio_client->GetBufferSize(&m_frames_in_buffer);
if (!HandleWinAPI("Failed to get buffer size from IAudioClient", result))
{
device->Release();
m_audio_client->Release();
m_audio_client = nullptr;
return false;
}
result = m_audio_client->GetService(__uuidof(IAudioRenderClient),
reinterpret_cast<LPVOID*>(&m_audio_renderer));
if (!HandleWinAPI("Failed to get IAudioRenderClient from IAudioClient", result))
{
device->Release();
m_audio_client->Release();
m_audio_client = nullptr;
return false;
}
m_need_data_event = CreateEvent(nullptr, FALSE, FALSE, nullptr);
m_audio_client->SetEventHandle(m_need_data_event);
result = m_audio_client->Start();
if (!HandleWinAPI("Failed to get IAudioRenderClient from IAudioClient", result))
{
device->Release();
m_audio_renderer->Release();
m_audio_renderer = nullptr;
m_audio_client->Release();
m_audio_client = nullptr;
CloseHandle(m_need_data_event);
return false;
}
device->Release();
INFO_LOG(AUDIO, "WASAPI: Successfully initialized!");
m_running = true;
m_thread = std::thread([this] { SoundLoop(); });
m_thread.detach();
}
else
{
m_running = false;
if (m_thread.joinable())
m_thread.join();
while (!m_stopped)
{
}
if (m_audio_client)
{
m_audio_renderer->Release();
m_audio_renderer = nullptr;
m_audio_client->Release();
m_audio_client = nullptr;
}
}
return true;
}
void WASAPIStream::SoundLoop()
{
Common::SetCurrentThreadName("WASAPI Handler");
BYTE* data;
if (m_audio_renderer)
{
m_audio_renderer->GetBuffer(m_frames_in_buffer, &data);
m_audio_renderer->ReleaseBuffer(m_frames_in_buffer, AUDCLNT_BUFFERFLAGS_SILENT);
}
m_stopped = false;
while (m_running)
{
if (!m_audio_renderer)
continue;
WaitForSingleObject(m_need_data_event, 1000);
m_audio_renderer->GetBuffer(m_frames_in_buffer, &data);
GetMixer()->Mix(reinterpret_cast<s16*>(data), m_frames_in_buffer);
float volume = SConfig::GetInstance().m_IsMuted ? 0 : SConfig::GetInstance().m_Volume / 100.;
for (u32 i = 0; i < m_frames_in_buffer * 2; i++)
reinterpret_cast<s16*>(data)[i] = static_cast<s16>(reinterpret_cast<s16*>(data)[i] * volume);
m_audio_renderer->ReleaseBuffer(m_frames_in_buffer, 0);
}
m_stopped = true;
}
#endif // _WIN32

52
Source/Core/AudioCommon/WASAPIStream.h Normal file
View File

@ -0,0 +1,52 @@
// Copyright 2018 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#pragma once
#ifdef _WIN32
// clang-format off
#include <Windows.h>
#include <mmreg.h>
// clang-format on
#endif
#include <atomic>
#include <string>
#include <thread>
#include <vector>
#include "AudioCommon/SoundStream.h"
struct IAudioClient;
struct IAudioRenderClient;
struct IMMDevice;
struct IMMDeviceEnumerator;
class WASAPIStream final : public SoundStream
{
#ifdef _WIN32
public:
explicit WASAPIStream();
~WASAPIStream();
bool Init() override;
bool SetRunning(bool running) override;
void SoundLoop() override;
static bool isValid();
static std::vector<std::string> GetAvailableDevices();
static IMMDevice* GetDeviceByName(std::string name);
private:
u32 m_frames_in_buffer = 0;
std::atomic<bool> m_running = false;
std::atomic<bool> m_stopped = false;
std::thread m_thread;
IAudioClient* m_audio_client = nullptr;
IAudioRenderClient* m_audio_renderer = nullptr;
IMMDeviceEnumerator* m_enumerator = nullptr;
HANDLE m_need_data_event = nullptr;
WAVEFORMATEXTENSIBLE m_format;
#endif // _WIN32
};

8
Source/Core/Core/ConfigManager.cpp
View File

@ -292,6 +292,10 @@ void SConfig::SaveDSPSettings(IniFile& ini)
dsp->Set("Backend", sBackend);
dsp->Set("Volume", m_Volume);
dsp->Set("CaptureLog", m_DSPCaptureLog);
#ifdef _WIN32
dsp->Set("WASAPIDevice", sWASAPIDevice);
#endif
}
void SConfig::SaveInputSettings(IniFile& ini)
@ -589,6 +593,10 @@ void SConfig::LoadDSPSettings(IniFile& ini)
dsp->Get("Volume", &m_Volume, 100);
dsp->Get("CaptureLog", &m_DSPCaptureLog, false);
#ifdef _WIN32
dsp->Get("WASAPIDevice", &sWASAPIDevice, "default");
#endif
m_IsMuted = false;
}

10
Source/Core/Core/ConfigManager.h
View File

@ -22,14 +22,14 @@ enum class Language;
enum class Region;
struct Partition;
class Volume;
}
} // namespace DiscIO
namespace IOS
{
namespace ES
{
class TMDReader;
}
}
} // namespace IOS
// DSP Backend Types
#define BACKEND_NULLSOUND _trans("No Audio Output")
@ -39,6 +39,7 @@ class TMDReader;
#define BACKEND_PULSEAUDIO "Pulse"
#define BACKEND_XAUDIO2 "XAudio2"
#define BACKEND_OPENSLES "OpenSLES"
#define BACKEND_WASAPI "WASAPI (Exclusive Mode)"
enum GPUDeterminismMode
{
@ -298,6 +299,11 @@ struct SConfig
int m_Volume;
std::string sBackend;
#ifdef _WIN32
// WSAPI settings
std::string sWASAPIDevice;
#endif
// Input settings
bool m_BackgroundInput;
bool m_AdapterRumble[4];

56
Source/Core/DolphinQt2/Settings/AudioPane.cpp
View File

@ -17,6 +17,7 @@
#include <QVBoxLayout>
#include "AudioCommon/AudioCommon.h"
#include "AudioCommon/WASAPIStream.h"
#include "Core/ConfigManager.h"
#include "Core/Core.h"
#include "DolphinQt2/Config/SettingsWindow.h"
@ -88,6 +89,14 @@ void AudioPane::CreateWidgets()
backend_layout->addRow(m_backend_label, m_backend_combo);
if (m_latency_control_supported)
backend_layout->addRow(m_latency_label, m_latency_spin);
#ifdef _WIN32
m_wasapi_device_label = new QLabel(tr("Device:"));
m_wasapi_device_combo = new QComboBox;
backend_layout->addRow(m_wasapi_device_label, m_wasapi_device_combo);
#endif
backend_layout->addRow(m_dolby_pro_logic);
auto* stretching_box = new QGroupBox(tr("Audio Stretching Settings"));
@ -140,6 +149,12 @@ void AudioPane::ConnectWidgets()
connect(m_dsp_hle, &QRadioButton::toggled, this, &AudioPane::SaveSettings);
connect(m_dsp_lle, &QRadioButton::toggled, this, &AudioPane::SaveSettings);
connect(m_dsp_interpreter, &QRadioButton::toggled, this, &AudioPane::SaveSettings);
#ifdef _WIN32
connect(m_wasapi_device_combo,
static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this,
&AudioPane::SaveSettings);
#endif
}
void AudioPane::LoadSettings()
@ -183,6 +198,18 @@ void AudioPane::LoadSettings()
m_stretching_buffer_slider->setValue(SConfig::GetInstance().m_audio_stretch_max_latency);
m_stretching_buffer_slider->setEnabled(m_stretching_enable->isChecked());
m_stretching_buffer_indicator->setText(tr("%1 ms").arg(m_stretching_buffer_slider->value()));
#ifdef _WIN32
if (SConfig::GetInstance().sWASAPIDevice == "default")
{
m_wasapi_device_combo->setCurrentIndex(0);
}
else
{
m_wasapi_device_combo->setCurrentText(
QString::fromStdString(SConfig::GetInstance().sWASAPIDevice));
}
#endif
}
void AudioPane::SaveSettings()
@ -227,6 +254,15 @@ void AudioPane::SaveSettings()
m_stretching_buffer_indicator->setText(
tr("%1 ms").arg(SConfig::GetInstance().m_audio_stretch_max_latency));
#ifdef _WIN32
std::string device = "default";
if (m_wasapi_device_combo->currentIndex() != 0)
device = m_wasapi_device_combo->currentText().toStdString();
SConfig::GetInstance().sWASAPIDevice = device;
#endif
AudioCommon::UpdateSoundStream();
}
@ -240,6 +276,22 @@ void AudioPane::OnBackendChanged()
m_latency_label->setEnabled(AudioCommon::SupportsLatencyControl(backend));
m_latency_spin->setEnabled(AudioCommon::SupportsLatencyControl(backend));
}
#ifdef _WIN32
bool is_wasapi = backend == BACKEND_WASAPI;
m_wasapi_device_label->setHidden(!is_wasapi);
m_wasapi_device_combo->setHidden(!is_wasapi);
if (is_wasapi)
{
m_wasapi_device_combo->clear();
m_wasapi_device_combo->addItem(tr("Default Device"));
for (const auto device : WASAPIStream::GetAvailableDevices())
m_wasapi_device_combo->addItem(QString::fromStdString(device));
}
#endif
m_volume_slider->setEnabled(AudioCommon::SupportsVolumeChanges(backend));
m_volume_indicator->setEnabled(AudioCommon::SupportsVolumeChanges(backend));
}
@ -257,6 +309,10 @@ void AudioPane::OnEmulationStateChanged(bool running)
m_latency_label->setEnabled(!running);
m_latency_spin->setEnabled(!running);
}
#ifdef _WIN32
m_wasapi_device_combo->setEnabled(!running);
#endif
}
void AudioPane::OnVolumeChanged(int volume)

4
Source/Core/DolphinQt2/Settings/AudioPane.h
View File

@ -52,6 +52,10 @@ private:
QCheckBox* m_dolby_pro_logic;
QLabel* m_latency_label;
QSpinBox* m_latency_spin;
#ifdef _WIN32
QLabel* m_wasapi_device_label;
QComboBox* m_wasapi_device_combo;
#endif
// Audio Stretching
QCheckBox* m_stretching_enable;