IP Camera Directshow Filter

hasAudio

Checking the connected IP camera whether have audio stream.
 

return S_OK if it have audio stream.


VC++ Example:
CComPtr<IIPCamViewerFilter> netCamFilter;
HRESULT hr;
hr = _mediaSource->QueryInterface(IID_IIPCamViewerFilter, (void**)&netCamFilter);
if (FAILED(hr))
return;
hr=netCamFilter->hasAudio();
if(SUCCEEDED(hr))
AfxMessageBox(L"The IP Camera have audio stream");