LoopbackAudioSource::LoopbackAudioSource()
{
HRESULT hr;
CComPtr<IMMDeviceEnumerator> enumerator;
hr = enumerator.CoCreateInstance(__uuidof(MMDeviceEnumerator));
assert(SUCCEEDED(hr));
CComPtr<IMMDevice> device;
hr = enumerator->GetDefaultAudioEndpoint(eRender, eConsole, &device);
assert(SUCCEEDED(hr));
hr = device->Activate(__uuidof(IAudioClient), CLSCTX_ALL, nullptr, (void **)&event_client_);
assert(SUCCEEDED(hr));
hr = event_client_->GetMixFormat(&format_);
assert(SUCCEEDED(hr));
hr = event_client_->Initialize(AUDCLNT_SHAREMODE_SHARED,
AUDCLNT_STREAMFLAGS_EVENTCALLBACK,
0, 0, format_, nullptr);
assert(SUCCEEDED(hr));
event_handle_ = CreateEventW(nullptr, FALSE, FALSE, nullptr);
assert(event_handle_);
hr = event_client_->SetEventHandle(event_handle_);
assert(SUCCEEDED(hr));
hr = device->Activate(__uuidof(IAudioClient), CLSCTX_ALL, nullptr, (void **)&loopback_client_);
assert(SUCCEEDED(hr));
hr = loopback_client_->Initialize(AUDCLNT_SHAREMODE_SHARED,
AUDCLNT_STREAMFLAGS_LOOPBACK,
0, 0, format_, nullptr);
assert(SUCCEEDED(hr));
hr = loopback_client_->GetService(__uuidof(IAudioCaptureClient), (void **)&capture_client_);
assert(SUCCEEDED(hr));
hr = event_client_->Start();
assert(SUCCEEDED(hr));
hr = loopback_client_->Start();
assert(SUCCEEDED(hr));
}
///////////////////////////////////////////////////////////////////////////
//
// Function:
// DeviceBindTo
//
// Description:
// Bind device to an IAudioClient interface.
//
// Parameters:
// eDataFlow: eRender for render device, eCapture for capture device
// iDevIdx: Index of device in the enumeration list. If it is -1, use default device
// ppVoid: pointer pointer to IAudioClient interface.
// ppszEndpointDeviceId: Device ID. Caller is responsible for freeing memeory
// using CoTaskMemoryFree. If can be NULL if called doesn't need this info.
//
// Return:
// S_OK if successful
//
///////////////////////////////////////////////////////////////////////////////
HRESULT DeviceBindTo(
EDataFlow eDataFlow, // eCapture/eRender
INT iDevIdx, // Device Index. -1 - default device.
IAudioClient **ppAudioClient, // pointer pointer to IAudioClient interface
IAudioEndpointVolume **ppEndpointVolume,
WCHAR** ppszEndpointDeviceId) // Device ID. Need to be freed in caller with CoTaskMemoryFree if it is not NULL
{
HRESULT hResult;
CComPtr<IMMDeviceEnumerator> spEnumerator;
CComPtr<IMMDeviceCollection> spEndpoints;
CComPtr<IMMDevice> spDevice;
WCHAR *pszDeviceId = NULL;
if (ppAudioClient == NULL)
return E_POINTER;
*ppAudioClient = NULL;
hResult = spEnumerator.CoCreateInstance(__uuidof(MMDeviceEnumerator));
IF_FAILED_JUMP(hResult, Exit);
// use default device
if (iDevIdx < 0 )
{
hResult = spEnumerator->GetDefaultAudioEndpoint(eDataFlow, eConsole, &spDevice);
IF_FAILED_JUMP(hResult, Exit);
}else{
// User selected device
hResult = spEnumerator->EnumAudioEndpoints(eDataFlow, DEVICE_STATE_ACTIVE, &spEndpoints);
IF_FAILED_JUMP(hResult, Exit);
hResult = spEndpoints->Item(iDevIdx, &spDevice);
IF_FAILED_JUMP(hResult, Exit);
}
// get device ID and format
hResult = spDevice->GetId(&pszDeviceId);
IF_FAILED_JUMP(hResult, Exit);
// Active device
hResult = spDevice->Activate(__uuidof(IAudioClient), CLSCTX_INPROC_SERVER, NULL, (void**)ppAudioClient);
IF_FAILED_JUMP(hResult, Exit);
if (ppEndpointVolume)
{
hResult = spDevice->Activate(__uuidof(IAudioEndpointVolume), CLSCTX_INPROC_SERVER, NULL, (void **)ppEndpointVolume);
IF_FAILED_JUMP(hResult, Exit);
}
Exit:
if (ppszEndpointDeviceId)
*ppszEndpointDeviceId = pszDeviceId;
else if (pszDeviceId)
CoTaskMemFree(pszDeviceId);
return hResult;
}
HRESULT AudioSessionService::RefreshAudioSessions()
{
CleanUpAudioSessions();
CComPtr<IMMDeviceEnumerator> deviceEnumerator;
FAST_FAIL(CoCreateInstance(__uuidof(MMDeviceEnumerator), nullptr, CLSCTX_INPROC, IID_PPV_ARGS(&deviceEnumerator)));
// TIP: Role parameter is not actually used https://msdn.microsoft.com/en-us/library/windows/desktop/dd371401.aspx
CComPtr<IMMDevice> device;
FAST_FAIL(deviceEnumerator->GetDefaultAudioEndpoint(EDataFlow::eRender, ERole::eMultimedia, &device));
CComPtr<IAudioSessionManager2> audioSessionManager;
FAST_FAIL(device->Activate(__uuidof(IAudioSessionManager2), CLSCTX_INPROC, nullptr, (void**)&audioSessionManager));
CComPtr<IAudioSessionEnumerator> audioSessionEnumerator;
FAST_FAIL(audioSessionManager->GetSessionEnumerator(&audioSessionEnumerator));
int sessionCount;
FAST_FAIL(audioSessionEnumerator->GetCount(&sessionCount));
for (int i = 0; i < sessionCount; i++)
{
EarTrumpetAudioSession audioSession;
if (SUCCEEDED(CreateEtAudioSessionFromAudioSession(audioSessionEnumerator, i, &audioSession)))
{
_sessions.push_back(audioSession);
}
}
return S_OK;
}
/**
Static function to create a template select dialog.
**/
void CTemplateSelectDialog::DoDialog()
{
#ifdef WWHIZ_VSNET
CComPtr<EnvDTE::Document> document;
g_pDTE->get_ActiveDocument(&document);
#endif WWHIZ_VSNET
while (g_wwhizTemplateManager->GetCount() == 0)
{
CTemplateFileListDialog dlg;
if (dlg.DoModal() == IDCANCEL)
return;
}
CTemplateSelectDialog dlg;
if (dlg.DoModal() == IDCANCEL)
return;
if (dlg.m_code)
{
#ifdef WWHIZ_VSNET
if (document)
document->Activate();
#endif WWHIZ_VSNET
WWhizCommands::PutTemplate(*dlg.m_code);
}
}
HRESULT AudioDeviceService::GetAudioDeviceVolume(LPWSTR deviceId, float* volume)
{
CComPtr<IMMDevice> device;
FAST_FAIL(this->GetDeviceByDeviceId(deviceId, &device));
CComPtr<IAudioEndpointVolume> audioEndpointVol;
FAST_FAIL(device->Activate(__uuidof(IAudioEndpointVolume), CLSCTX_INPROC, nullptr, reinterpret_cast<void**>(&audioEndpointVol)));
return audioEndpointVol->GetMasterVolumeLevelScalar(volume);
}
HRESULT AudioDeviceService::SetMuteBoolForDevice(LPWSTR deviceId, BOOL value)
{
CComPtr<IMMDevice> device;
FAST_FAIL(this->GetDeviceByDeviceId(deviceId, &device));
CComPtr<IAudioEndpointVolume> audioEndpointVol;
FAST_FAIL(device->Activate(__uuidof(IAudioEndpointVolume), CLSCTX_INPROC, nullptr, reinterpret_cast<void**>(&audioEndpointVol)));
return audioEndpointVol->SetMute(value, nullptr);
}
bool initAudio(){
if (!IsWindowsVistaOrGreater()) return false;
CComPtr<IMMDevice> pDevice; // get Mgr & EndpointVolume
CComPtr<IMMDeviceEnumerator> pDeviceEnumerator; // select output device
CComPtr<IAudioSessionManager2> pAudioSessionManager2; // get enumerator
// Init
CoInitializeEx(NULL, COINIT_MULTITHREADED);
// Device Enumerator
pDeviceEnumerator.CoCreateInstance(__uuidof(MMDeviceEnumerator));
// get Default Audio Endpoint Device
pDeviceEnumerator->GetDefaultAudioEndpoint(eRender, eMultimedia, &pDevice);
// get AudioSessionMgr2 and AudioEndpointVolume
pDevice->Activate(__uuidof(IAudioSessionManager2), CLSCTX_ALL, NULL, (VOID**)&pAudioSessionManager2);
pDevice->Activate(__uuidof(IAudioEndpointVolume), CLSCTX_ALL, NULL, (VOID**)&pEpVol);
// get Audio Session Enumerator
pAudioSessionManager2->GetSessionEnumerator(&pAudioSessionEnumerator);
return true;
}
/* Retrieves the default audio device from the Core Audio API
To be used for WASAPI mode
To be improved : choose a device (ask albain on doom9/ffdshow-tryout for sample code)
*/
HRESULT CMpcAudioRenderer::GetDefaultAudioDevice(IAudioClient **ppAudioClient)
{
HRESULT hr;
CComPtr<IMMDeviceEnumerator> enumerator;
CComPtr<IMMDevice> device;
hr = enumerator.CoCreateInstance(__uuidof(MMDeviceEnumerator));
hr = enumerator->GetDefaultAudioEndpoint(eRender, eConsole,
&device);
hr = device->Activate(__uuidof(IAudioClient), CLSCTX_ALL, NULL, reinterpret_cast<void**>(ppAudioClient));
return hr;
}
bool FVSAccessorModule::OpenVisualStudioFileAtLineInternal(const FString& FullPath, int32 LineNumber, int32 ColumnNumber)
{
// Check that the file actually exists first
if (!FPaths::FileExists(FullPath))
{
OpenFileFailed.Broadcast(FullPath);
return false;
}
// Initialize the com library, if not already by this thread
if (!FWindowsPlatformMisc::CoInitialize())
{
UE_LOG(LogVSAccessor, Error, TEXT( "ERROR - Could not initialize COM library!" ));
return false;
}
bool bDefer = false, bSuccess = false;
CComPtr<EnvDTE::_DTE> DTE;
if (AccessVisualStudio(DTE, SolutionPath, Locations))
{
// Set Focus on Visual Studio
CComPtr<EnvDTE::Window> MainWindow;
if (SUCCEEDED(DTE->get_MainWindow(&MainWindow)) &&
SUCCEEDED(MainWindow->Activate()))
{
// Get ItemOperations
CComPtr<EnvDTE::ItemOperations> ItemOperations;
if (SUCCEEDED(DTE->get_ItemOperations(&ItemOperations)))
{
// Open File
auto ANSIPath = StringCast<ANSICHAR>(*FullPath);
CComBSTR COMStrFileName(ANSIPath.Get());
CComBSTR COMStrKind(EnvDTE::vsViewKindTextView);
CComPtr<EnvDTE::Window> Window;
if (SUCCEEDED(ItemOperations->OpenFile(COMStrFileName, COMStrKind, &Window)))
{
// Scroll to Line Number
CComPtr<EnvDTE::Document> Document;
CComPtr<IDispatch> SelectionDispatch;
CComPtr<EnvDTE::TextSelection> Selection;
if (SUCCEEDED(DTE->get_ActiveDocument(&Document)) &&
SUCCEEDED(Document->get_Selection(&SelectionDispatch)) &&
SUCCEEDED(SelectionDispatch->QueryInterface(&Selection)) &&
SUCCEEDED(Selection->GotoLine(LineNumber, true)))
{
if (ColumnNumber > 0 &&
SUCCEEDED(Selection->MoveToLineAndOffset(LineNumber, ColumnNumber, false)))
{
bSuccess = true;
}
else
{
UE_LOG(LogVSAccessor, Warning, TEXT("Couldn't goto column number '%i' of line '%i' in '%s'"), ColumnNumber, LineNumber, *FullPath);
}
}
else
{
UE_LOG(LogVSAccessor, Warning, TEXT("Couldn't goto line number '%i' in '%s'"), LineNumber, *FullPath);
}
}
else
{
UE_LOG(LogVSAccessor, Warning, TEXT("Couldn't open file '%s'."), *FullPath);
}
VSLaunchFinished( true );
}
else
{
UE_LOG(LogVSAccessor, Log, TEXT("Couldn't get item operations. Visual Studio may still be initializing."), *FullPath);
bDefer = true;
}
}
else
{
UE_LOG(LogVSAccessor, Warning, TEXT("Couldn't set focus on Visual Studio."));
}
}
else
{
bDefer = true;
// We can't process until we're in the main thread, if we aren't initially defer until we are
if ( IsInGameThread() )
{
// If we haven't already attempted to launch VS do so now
if (!IsVSLaunchInProgress())
{
// If there's no valid instance of VS running, run one if we have it installed
if ( !RunVisualStudioAndOpenSolution() )
{
bDefer = false;
}
else
{
VSLaunchStarted();
}
}
}
}
// If we have attempted to launch VS, and it's taken too long, timeout so the user can try again
if ( IsVSLaunchInProgress() && ( FPlatformTime::Seconds() - VSLaunchTime ) > 300 )
{
// We need todo this incase the process died or was kill prior to the code gaining focus of it
bDefer = false;
VSLaunchFinished( false );
// We failed to open the solution and file, so lets just use the platforms default opener.
FPlatformProcess::LaunchFileInDefaultExternalApplication( *FullPath );
}
// Defer the request until VS is available to take hold of
if ( bDefer )
{
const FString DeferCommand = FString::Printf( TEXT( "OPEN_VS %s %d %d" ), *FullPath, LineNumber, ColumnNumber);
LaunchVSDeferred.Broadcast( DeferCommand );
}
else
{
UE_LOG(LogVSAccessor, Warning, TEXT("Couldn't access Visual Studio"));
}
// Uninitialize the com library, if we initialized it above (don't call if S_FALSE)
FWindowsPlatformMisc::CoUninitialize();
return bSuccess;
}
// ----------------------------------------------------------------------------
// Function:
// CSwapPropPage::OnApply
//
// Description:
// Handle the pressing of the apply button
//
// Parameters:
// hwndDlg - [in] Handle to the dialog box
//
// Return values:
// TRUE to set keyboard focus on control
// ----------------------------------------------------------------------------
BOOL CSwapPropPage::OnApply
(
HWND hwndDlg
)
{
HRESULT hr = S_OK;
// Commit the settings
hr = SetSysFXState();
IF_FAILED_JUMP(hr, Exit);
hr = SetSwapSFXState();
IF_FAILED_JUMP(hr, Exit);
hr = SetSwapMFXState();
IF_FAILED_JUMP(hr, Exit);
hr = SetDelaySFXState();
IF_FAILED_JUMP(hr, Exit);
hr = SetDelayMFXState();
IF_FAILED_JUMP(hr, Exit);
if (NULL != m_pAudioFXExtParams && NULL != m_pAudioFXExtParams->pFxProperties)
{
hr = m_pAudioFXExtParams->pFxProperties->Commit();
IF_FAILED_JUMP(hr, Exit);
if (m_fReset)
{
// something changed that forces us to reset the format support
CComPtr<IMMDeviceEnumerator> spEnumerator;
CComPtr<IMMDevice> spMMDevice;
// Create device enumerator and get IMMDevice from the device ID
hr = spEnumerator.CoCreateInstance(__uuidof(MMDeviceEnumerator));
IF_FAILED_JUMP(hr, Exit);
hr = spEnumerator->GetDevice(m_pAudioFXExtParams->pwstrEndpointID, &spMMDevice);
IF_FAILED_JUMP(hr, Exit);
CComPtr<IAudioEndpointFormatControl> spEndpointFormat;
hr = spMMDevice->Activate(__uuidof(IAudioEndpointFormatControl), CLSCTX_ALL, NULL, (void **)&spEndpointFormat);
IF_FAILED_JUMP(hr, Exit);
spEndpointFormat->ResetToDefault(ENDPOINT_FORMAT_RESET_MIX_ONLY);
m_fReset = FALSE;
}
}
Exit:
if (SUCCEEDED(hr))
{
SetWindowLongPtr(hwndDlg, DWLP_MSGRESULT, PSNRET_NOERROR);
}
else
{
SetWindowLongPtr(hwndDlg, DWLP_MSGRESULT, PSNRET_INVALID);
}
return(TRUE);
}
///////////////////////////////////////////////////////////////////////////////
// Function:
// GetMicArrayGeometry()
//
// Description:
// Obtains the geometry for the specified mic array.
//
// Parameters: szDeviceId -- The requested device ID, which can be obtained
// from calling EnumAudioCaptureDevices()
//
// ppGeometry -- Address of the pointer to the mic-array gemometry.
// Caller is ressponsible for calling CoTaskMemFree()
// if the call is successfull.
//
// cbSize -- size of the geometry structure
//
// Returns: S_OK on success
///////////////////////////////////////////////////////////////////////////////
HRESULT GetMicArrayGeometry(wchar_t szDeviceId[], KSAUDIO_MIC_ARRAY_GEOMETRY** ppGeometry, ULONG& cbSize)
{
HRESULT hr = S_OK;
if (szDeviceId == NULL)
return E_INVALIDARG;
if (ppGeometry == NULL)
return E_POINTER;
cbSize = 0;
CComPtr<IMMDeviceEnumerator> spEnumerator;
CComPtr<IMMDevice> spDevice;
CComQIPtr<IPart> spPart;
bool bIsMicArray;
hr = spEnumerator.CoCreateInstance(__uuidof(MMDeviceEnumerator));
IF_FAILED_RETURN(hr);
hr = spEnumerator->GetDevice(szDeviceId, &spDevice);
IF_FAILED_RETURN(hr);
hr = EndpointIsMicArray(spDevice, bIsMicArray);
IF_FAILED_RETURN(hr);
if (!bIsMicArray)
return E_FAIL;
UINT nPartId = 0;
hr = GetInputJack(spDevice, spPart);
IF_FAILED_RETURN(hr);
hr = spPart->GetLocalId(&nPartId);
IF_FAILED_RETURN(hr);
CComPtr<IDeviceTopology> spTopology;
CComPtr<IMMDeviceEnumerator> spEnum;
CComPtr<IMMDevice> spJackDevice;
CComPtr<IKsControl> spKsControl;
wchar_t * pwstrDevice = 0;
// Get the topology object for the part
hr = spPart->GetTopologyObject(&spTopology);
IF_FAILED_RETURN(hr);
// Get the id of the IMMDevice that this topology object describes.
hr = spTopology->GetDeviceId(&pwstrDevice);
IF_FAILED_RETURN(hr);
// Get an IMMDevice pointer using the ID
hr = spEnum.CoCreateInstance(__uuidof(MMDeviceEnumerator));
IF_FAILED_JUMP(hr, Exit);
hr = spEnum->GetDevice(pwstrDevice, &spJackDevice);
IF_FAILED_JUMP(hr, Exit);
// Activate IKsControl on the IMMDevice
hr = spJackDevice->Activate(__uuidof(IKsControl), CLSCTX_INPROC_SERVER,
NULL, reinterpret_cast<void**>(&spKsControl));
IF_FAILED_JUMP(hr, Exit);
// At this point we can use IKsControl just as we would use DeviceIoControl
KSP_PIN ksp;
ULONG cbData = 0;
ULONG cbGeometry = 0;
// Inititialize the pin property
::ZeroMemory(&ksp, sizeof(ksp));
ksp.Property.Set = KSPROPSETID_Audio;
ksp.Property.Id = KSPROPERTY_AUDIO_MIC_ARRAY_GEOMETRY;
ksp.Property.Flags = KSPROPERTY_TYPE_GET;
ksp.PinId = nPartId & PARTID_MASK;
// Get data size by passing NULL
hr = spKsControl->KsProperty(reinterpret_cast<PKSPROPERTY>(&ksp),
sizeof(ksp), NULL, 0, &cbGeometry);
IF_FAILED_JUMP(hr, Exit);
// Allocate memory for the microphone array geometry
*ppGeometry = reinterpret_cast<KSAUDIO_MIC_ARRAY_GEOMETRY*>
(::CoTaskMemAlloc(cbGeometry));
if(*ppGeometry == 0)
{
hr = E_OUTOFMEMORY;
}
IF_FAILED_JUMP(hr, Exit);
// Now retriev the mic-array structure...
DWORD cbOut = 0;
hr = spKsControl->KsProperty(reinterpret_cast<PKSPROPERTY>(&ksp),
sizeof(ksp), *ppGeometry, cbGeometry,
&cbOut);
IF_FAILED_JUMP(hr, Exit);
cbSize = cbGeometry;
Exit:
if(pwstrDevice != 0)
{
::CoTaskMemFree(pwstrDevice);
}
return hr;
}//GetMicArrayGeometry()
HRESULT ClientReader::Initialize(bool IsLoopback, FLOAT SampleRate, HANDLE WaitEvent, CComPtr<IMMDevice> InputDevice, CComPtr<IDXAudioCallback> Callback) {
HRESULT hr = S_OK;
BYTE* Buffer = nullptr;
int error = 0;
m_Callback = Callback;
//Create the SRC_STATE object
m_ResampleState = src_new (
SRC_SINC_FASTEST, //More than adequate for a real time stream
2, //Two channels (stereo)
&error
); if (error != 0) {
m_Callback->OnObjectFailure (
FILENAME,
__LINE__,
E_FAIL
); return E_FAIL;
}
//"Activate" the device (create the IAudioClient interface)
hr = InputDevice->Activate (
__uuidof(IAudioClient),
CLSCTX_ALL,
nullptr,
(void**)(&m_Client)
); RETURN_HR(__LINE__);
//Retrieves the device period - this is how often new information is provided
//to the stream, in 100-nanosecond units.
hr = m_Client->GetDevicePeriod (
&m_Period,
nullptr
); RETURN_HR(__LINE__);
//Retrieves the mix format - this is the format in which the audio endpoint gives
//us the data. This data will need to be resampled, so we need to know what form
//it's in.
hr = m_Client->GetMixFormat (
(WAVEFORMATEX**)(&m_WaveFormat)
); RETURN_HR(__LINE__);
//Initialize the client, marking how we're going to be using it
hr = m_Client->Initialize (
AUDCLNT_SHAREMODE_SHARED, //Always use shared - exclusive is meant for drivers and is unpredictable otherwise
WaitEvent ? AUDCLNT_STREAMFLAGS_EVENTCALLBACK : NULL | //Use an event callback if specified
IsLoopback ? AUDCLNT_STREAMFLAGS_LOOPBACK : NULL, //Make this a loopback stream if specified
m_Period, //Creates a buffer large enough to store one packet
m_Period, //Use the endpoint's periodicity (this can't ve any other value)
(WAVEFORMATEX*)(m_WaveFormat), //Pass in the wave format we just retrieved
NULL //No audio session stuff
); RETURN_HR(__LINE__);
//Create the IAudioCaptureClient interface
hr = m_Client->GetService (
IID_PPV_ARGS(&m_CaptureClient)
); RETURN_HR(__LINE__);
//If using an event callback mechanism, provide the event handle (this is from CDXAudioStream)
if (WaitEvent != NULL) {
hr = m_Client->SetEventHandle (
WaitEvent
); RETURN_HR(__LINE__);
}
//Calculate the number of frames the endpoint is going to give us each period.
m_PeriodFrames = (UINT32)(ceil(DOUBLE(m_Period * m_WaveFormat->Format.nSamplesPerSec) / 10000000));
//Calculate the resample ratio - this is the ratio of the output sample rate to the input sample rate, IE
//the sample rate specified by the application developer divided by the sample rate used by the endpoint.
//This value is used by libsamplerate.
m_ResampleRatio = DOUBLE(SampleRate) / DOUBLE(m_WaveFormat->Format.nSamplesPerSec); //Output sample rate / input sample rate
return S_OK;
}
HRESULT AudioDeviceService::RefreshAudioDevices()
{
CleanUpAudioDevices();
CComPtr<IMMDeviceEnumerator> deviceEnumerator;
FAST_FAIL(CoCreateInstance(__uuidof(MMDeviceEnumerator), nullptr, CLSCTX_INPROC, IID_PPV_ARGS(&deviceEnumerator)));
CComPtr<IMMDeviceCollection> deviceCollection;
FAST_FAIL(deviceEnumerator->EnumAudioEndpoints(EDataFlow::eRender, ERole::eMultimedia, &deviceCollection));
CComPtr<IMMDevice> defaultDevice;
FAST_FAIL(deviceEnumerator->GetDefaultAudioEndpoint(EDataFlow::eRender, ERole::eMultimedia, &defaultDevice));
CComHeapPtr<wchar_t> defaultDeviceId;
FAST_FAIL(defaultDevice->GetId(&defaultDeviceId));
UINT numDevices;
FAST_FAIL(deviceCollection->GetCount(&numDevices));
for (UINT i = 0; i < numDevices; i++)
{
CComPtr<IMMDevice> device;
if (FAILED(deviceCollection->Item(i, &device)))
{
continue;
}
CComHeapPtr<wchar_t> deviceId;
FAST_FAIL(device->GetId(&deviceId));
CComPtr<IPropertyStore> propertyStore;
FAST_FAIL(device->OpenPropertyStore(STGM_READ, &propertyStore));
PROPVARIANT friendlyName;
PropVariantInit(&friendlyName);
FAST_FAIL(propertyStore->GetValue(PKEY_Device_FriendlyName, &friendlyName));
CComPtr<IAudioEndpointVolume> audioEndpointVol;
FAST_FAIL(device->Activate(__uuidof(IAudioEndpointVolume), CLSCTX_INPROC, nullptr, reinterpret_cast<void**>(&audioEndpointVol)));
BOOL isMuted;
FAST_FAIL(audioEndpointVol->GetMute(&isMuted));
EarTrumpetAudioDevice audioDevice = {};
FAST_FAIL(SHStrDup(friendlyName.pwszVal, &audioDevice.DisplayName));
FAST_FAIL(SHStrDup(deviceId, &audioDevice.Id));
audioDevice.IsDefault = (wcscmp(defaultDeviceId, deviceId) == 0);
audioDevice.IsMuted = !!isMuted;
_devices.push_back(audioDevice);
PropVariantClear(&friendlyName);
}
return S_OK;
}