/******************************************************************
* PropVariantChangeType (PROPSYS.@)
*/
HRESULT WINAPI PropVariantChangeType(PROPVARIANT *ppropvarDest, REFPROPVARIANT propvarSrc,
PROPVAR_CHANGE_FLAGS flags, VARTYPE vt)
{
HRESULT hr;
FIXME("(%p, %p, %d, %d, %d): semi-stub!\n", ppropvarDest, propvarSrc,
propvarSrc->vt, flags, vt);
if(vt == propvarSrc->vt)
return PropVariantCopy(ppropvarDest, propvarSrc);
switch (vt)
{
case VT_I2:
{
SHORT res;
hr = PropVariantToInt16(propvarSrc, &res);
if (SUCCEEDED(hr))
{
ppropvarDest->vt = VT_I2;
ppropvarDest->u.iVal = res;
}
return hr;
}
case VT_UI2:
{
USHORT res;
hr = PropVariantToUInt16(propvarSrc, &res);
if (SUCCEEDED(hr))
{
ppropvarDest->vt = VT_UI2;
ppropvarDest->u.uiVal = res;
}
return hr;
}
case VT_I4:
{
LONG res;
hr = PropVariantToInt32(propvarSrc, &res);
if (SUCCEEDED(hr))
{
ppropvarDest->vt = VT_I4;
ppropvarDest->u.lVal = res;
}
return hr;
}
case VT_UI4:
{
ULONG res;
hr = PropVariantToUInt32(propvarSrc, &res);
if (SUCCEEDED(hr))
{
ppropvarDest->vt = VT_UI4;
ppropvarDest->u.ulVal = res;
}
return hr;
}
case VT_I8:
{
LONGLONG res;
hr = PropVariantToInt64(propvarSrc, &res);
if (SUCCEEDED(hr))
{
ppropvarDest->vt = VT_I8;
ppropvarDest->u.hVal.QuadPart = res;
}
return hr;
}
case VT_UI8:
{
ULONGLONG res;
hr = PropVariantToUInt64(propvarSrc, &res);
if (SUCCEEDED(hr))
{
ppropvarDest->vt = VT_UI8;
ppropvarDest->u.uhVal.QuadPart = res;
}
return hr;
}
case VT_LPWSTR:
{
WCHAR *res;
hr = PropVariantToStringAlloc(propvarSrc, &res);
if (SUCCEEDED(hr))
{
ppropvarDest->vt = VT_LPWSTR;
ppropvarDest->u.pwszVal = res;
}
return hr;
}
}
switch (propvarSrc->vt)
{
case VT_FILETIME:
return PROPVAR_ConvertFILETIME(ppropvarDest, propvarSrc, vt);
default:
FIXME("Unhandled source type: %d\n", propvarSrc->vt);
}
return E_FAIL;
}
/******************************************************************
* PropVariantChangeType (PROPSYS.@)
*/
HRESULT WINAPI PropVariantChangeType(PROPVARIANT *ppropvarDest, REFPROPVARIANT propvarSrc,
PROPVAR_CHANGE_FLAGS flags, VARTYPE vt)
{
HRESULT hr;
FIXME("(%p, %p, %d, %d, %d): semi-stub!\n", ppropvarDest, propvarSrc,
propvarSrc->vt, flags, vt);
if (vt == propvarSrc->vt)
return PropVariantCopy(ppropvarDest, propvarSrc);
if (propvarSrc->vt == VT_FILETIME)
return PROPVAR_ConvertFILETIME(&propvarSrc->u.filetime, ppropvarDest, vt);
switch (vt)
{
case VT_I1:
{
LONGLONG res;
hr = PROPVAR_ConvertNumber(propvarSrc, 8, TRUE, &res);
if (SUCCEEDED(hr))
{
ppropvarDest->vt = VT_I1;
ppropvarDest->u.cVal = (char)res;
}
return hr;
}
case VT_UI1:
{
LONGLONG res;
hr = PROPVAR_ConvertNumber(propvarSrc, 8, FALSE, &res);
if (SUCCEEDED(hr))
{
ppropvarDest->vt = VT_UI1;
ppropvarDest->u.bVal = (UCHAR)res;
}
return hr;
}
case VT_I2:
{
SHORT res;
hr = PropVariantToInt16(propvarSrc, &res);
if (SUCCEEDED(hr))
{
ppropvarDest->vt = VT_I2;
ppropvarDest->u.iVal = res;
}
return hr;
}
case VT_UI2:
{
USHORT res;
hr = PropVariantToUInt16(propvarSrc, &res);
if (SUCCEEDED(hr))
{
ppropvarDest->vt = VT_UI2;
ppropvarDest->u.uiVal = res;
}
return hr;
}
case VT_I4:
{
LONG res;
hr = PropVariantToInt32(propvarSrc, &res);
if (SUCCEEDED(hr))
{
ppropvarDest->vt = VT_I4;
ppropvarDest->u.lVal = res;
}
return hr;
}
case VT_UI4:
{
ULONG res;
hr = PropVariantToUInt32(propvarSrc, &res);
if (SUCCEEDED(hr))
{
ppropvarDest->vt = VT_UI4;
ppropvarDest->u.ulVal = res;
}
return hr;
}
case VT_I8:
{
LONGLONG res;
hr = PropVariantToInt64(propvarSrc, &res);
if (SUCCEEDED(hr))
{
ppropvarDest->vt = VT_I8;
ppropvarDest->u.hVal.QuadPart = res;
}
return hr;
}
case VT_UI8:
{
ULONGLONG res;
hr = PropVariantToUInt64(propvarSrc, &res);
if (SUCCEEDED(hr))
{
ppropvarDest->vt = VT_UI8;
ppropvarDest->u.uhVal.QuadPart = res;
}
return hr;
}
case VT_LPWSTR:
case VT_BSTR:
{
WCHAR *res;
hr = PropVariantToStringAlloc(propvarSrc, &res);
if (SUCCEEDED(hr))
{
ppropvarDest->vt = VT_LPWSTR;
ppropvarDest->u.pwszVal = res;
}
return hr;
}
case VT_LPSTR:
{
WCHAR *resW;
hr = PropVariantToStringAlloc(propvarSrc, &resW);
if (SUCCEEDED(hr))
{
char *res;
DWORD len;
len = WideCharToMultiByte(CP_ACP, 0, resW, -1, NULL, 0, NULL, NULL);
res = CoTaskMemAlloc(len);
if (res)
{
WideCharToMultiByte(CP_ACP, 0, resW, -1, res, len, NULL, NULL);
ppropvarDest->vt = VT_LPSTR;
ppropvarDest->u.pszVal = res;
}
else
hr = E_OUTOFMEMORY;
CoTaskMemFree(resW);
}
return hr;
}
default:
FIXME("Unhandled dest type: %d\n", vt);
return E_FAIL;
}
}
bool EnumBuiltinDevices_w64(const uint32_t deviceType, STUDIO_LINK_DEVICE_LIST* devices)
{
PRECONDITION_RETURN(deviceType != INVALID_DEVICE_TYPE, false);
PRECONDITION_RETURN(devices != 0, false);
bool result = false;
HRESULT hr = CoInitialize(0);
if(SUCCEEDED(hr))
{
IMMDeviceEnumerator* pDeviceEnumerator = 0;
hr = CoCreateInstance(CLSID_MMDeviceEnumerator, 0, CLSCTX_INPROC_SERVER, IID_IMMDeviceEnumerator, (void**)&pDeviceEnumerator);
if(SUCCEEDED(hr) && (pDeviceEnumerator != 0))
{
EDataFlow dataFlow = eAll;
if(deviceType == HEADPHONE)
{
dataFlow = eRender;
}
else if(deviceType == MICROPHONE)
{
dataFlow = eCapture;
}
IMMDeviceCollection* pDeviceCollection = 0;
hr = pDeviceEnumerator->EnumAudioEndpoints(dataFlow, DEVICE_STATE_ACTIVE, &pDeviceCollection);
if(SUCCEEDED(hr) && (pDeviceCollection != 0))
{
UINT deviceCount = 0;
hr = pDeviceCollection->GetCount(&deviceCount);
if(SUCCEEDED(hr))
{
size_t foundDevices = 0;
for(UINT i = 0; (i < deviceCount) && (foundDevices < deviceCount); i++)
{
IMMDevice* pDevice = 0;
hr = pDeviceCollection->Item(i, &pDevice);
if(SUCCEEDED(hr) && (pDevice != 0))
{
IPropertyStore* pProperties = 0;
hr = pDevice->OpenPropertyStore(STGM_READ, &pProperties);
if(SUCCEEDED(hr))
{
PROPVARIANT deviceFormatProperty;
PropVariantInit(&deviceFormatProperty);
hr = pProperties->GetValue(PKEY_AudioEngine_DeviceFormat, &deviceFormatProperty);
if(SUCCEEDED(hr) && (VT_BLOB == deviceFormatProperty.vt))
{
WAVEFORMATEX* deviceFormat = (WAVEFORMATEX*)deviceFormatProperty.blob.pBlobData;
devices->devices[foundDevices].channelCount = deviceFormat->nChannels;
devices->devices[foundDevices].sampleRate = deviceFormat->nSamplesPerSec;
if((WAVE_FORMAT_EXTENSIBLE == deviceFormat->wFormatTag) && (deviceFormat->cbSize >= 22))
{
//WAVEFORMATEXTENSIBLE* extensibleDeviceFormat = (WAVEFORMATEXTENSIBLE*)deviceFormat;
}
PropVariantClear(&deviceFormatProperty);
PROPVARIANT deviceNameProperty;
PropVariantInit(&deviceNameProperty);
hr = pProperties->GetValue(PKEY_Device_FriendlyName, &deviceNameProperty);
if(SUCCEEDED(hr))
{
PWSTR deviceName = 0;
hr = PropVariantToStringAlloc(deviceNameProperty, &deviceName);
if(SUCCEEDED(hr))
{
memset(devices->devices[foundDevices].name, 0, STUDIO_LINK_DEVICE_NAME_LENGTH);
size_t numOfCharsConverted = 0;
const size_t deviceNameLength = wcslen(deviceName);
wcstombs_s(&numOfCharsConverted, devices->devices[foundDevices].name,
STUDIO_LINK_DEVICE_NAME_LENGTH, deviceName, deviceNameLength);
foundDevices++;
CoTaskMemFree(deviceName);
deviceName = 0;
}
PropVariantClear(&deviceNameProperty);
}
}
SafeRelease(pProperties);
}
SafeRelease(pDevice);
}
}
devices->deviceCount = foundDevices;
}
SafeRelease(pDeviceCollection);
}
SafeRelease(pDeviceEnumerator);
}
CoUninitialize();
}
if(devices->deviceCount > 0)
{
result = true;
}
return result;
}
void MediaSource::LoadMetadataFromSource()
{
IMFMetadataProvider* mfMetadataProvider = nullptr;
IMFMetadata* mfMetadata = nullptr;
PROPVARIANT metadataKeys, metadataValue;
PWSTR *metadataPropertyKeys = nullptr;
HRESULT hr;
_metadataPropertyCount = 0;
PropVariantInit(&metadataKeys);
PropVariantInit(&metadataValue);
do
{
if (!SUCCEEDED(hr = MFGetService(_mfMediaSource, MF_METADATA_PROVIDER_SERVICE, IID_PPV_ARGS(&mfMetadataProvider))))
{
// Can't get the metadata provider service for this media source, but that's ok... we'll just skip reading metadata
hr = S_OK;
break;
}
if (!SUCCEEDED(hr = mfMetadataProvider->GetMFMetadata(_mfPresentationDescriptor, 0, 0, &mfMetadata)))
break;
if (!SUCCEEDED(hr = mfMetadata->GetAllPropertyNames(&metadataKeys)))
break;
if (!SUCCEEDED(hr = PropVariantToStringVectorAlloc(metadataKeys, &metadataPropertyKeys, &_metadataPropertyCount)))
break;
_metadata = (MetadataKeyValuePair *)malloc(_metadataPropertyCount * sizeof(MetadataKeyValuePair));
for (ULONG i = 0; i < _metadataPropertyCount; i++)
{
PWSTR metadataKey = *(metadataPropertyKeys + i);
if (!SUCCEEDED(hr = mfMetadata->GetProperty(metadataKey, &metadataValue)))
break;
(_metadata + i)->Key = metadataKey;
if (!SUCCEEDED(hr = PropVariantToStringAlloc(metadataValue, &((_metadata + i)->Value))))
break;
PropVariantClear(&metadataValue);
}
if (FAILED(hr))
break;
} while (0);
if (metadataPropertyKeys) CoTaskMemFree(metadataPropertyKeys);
if (mfMetadata) mfMetadata->Release();
if (mfMetadataProvider) mfMetadataProvider->Release();
if (FAILED(hr))
{
throw std::exception("Error occurred reading metadata from media source");
}
}
