How to correctly initialize MediaCaptureInitializationSettings for an IP Camera?

Hello,

I'm currently attempting to use Windows::Media::Capture APIs in C++/CX to record MP4 streams from an IP Camera. Here is a code snippet I have written:

MediaCaptureInitializationSettings^ settings = ref new Capture::MediaCaptureInitializationSettings();
settings->SharingMode = Capture::MediaCaptureSharingMode::SharedReadOnly;
settings->StreamingCaptureMode = Capture::StreamingCaptureMode::Video;

if (deviceUser && deviceUser->Length() > 0)
{
    PasswordCredential^ credential = ref new PasswordCredential();
    credential->UserName = deviceUser;
    credential->Password = devicePassword;
    credential->Resource = deviceUri;

    settings->DeviceUriPasswordCredential = credential;
}
else
{
    settings->DeviceUri = ref new Uri(deviceUri);
}

task<void> cameraInitializeTask = create_task(_mediaCapture->InitializeAsync(settings));

return cameraInitializeTask.then([this, deviceUri]()
{
    InitializeMediaFrameReaderAsync(deviceUri).wait();
    if (_mediaFrameReader != nullptr)
        _isInitialized = true;
});

However, while _mediaCapture gets initialized, _mediaCapture->FrameSources does not point to the correct camera device. Can someone please help me understand why? I need this information to create the correct frame readers for my cameras. Thank you in advance for any help!

Best regards, Christa

Kallenberger Christa (ETAS/EAS-AS) 0

Task<void> MediaCaptureControl::InitializeMediaFrameReaderAsync(Platform::String^ cameraPathId)
{
	MediaFrameSource^ frameSource;
	if (_mediaCapture->FrameSources->Size == 1)
	{
		try
		{
			frameSource = _mediaCapture->FrameSources->First()->Current->Value;
		}
		catch (const std::exception&)
		{
		}
	}
	else
	{
		//Get the frameSource by the Id to initialize the MediaFrameReader
		for (IKeyValuePair<Platform::String^, MediaFrameSource^>^ source : _mediaCapture->FrameSources)
		{
			frameSource = source->Value;
			Platform::String^ Id = frameSource->Info->DeviceInformation->Id;
			if (Id == cameraPathId)
			{
				break;
			}
		}
	}
	try
	{
		if (frameSource != nullptr)
		{
			task<Frames::MediaFrameReader^> createFrameReaderTask = create_task(_mediaCapture->CreateFrameReaderAsync(frameSource));
			return createFrameReaderTask.then([this](MediaFrameReader^ frameReader)
				{
					_mediaFrameReader = frameReader;
				});
		}
	}
	catch (const std::exception&)
	{
		...
	}
}

Jeanine Zhang-MSFT 9,431 Reputation points Microsoft Vendor

2024-06-25T05:24:44.8566667+00:00

As this issue is complex, to resolve this issue as soon as possible, you can open an incident via Contact us tab at link below: https://developer.microsoft.com/en-us/windows/support/

Please choose the Technical Support - Coding/Debugging for Windows APP SDK for this issue. In-addition, if the support engineer determines that the issue is the result of a bug the service request will be a no-charge case and you won't be charged.
Kallenberger Christa (ETAS/EAS-AS) 0 Reputation points

2024-06-26T08:50:48.93+00:00

Hi there,

thank you for your answer.

I've just tried to create a support request but I could not do it because my account is not linked to a suitable support plan. How to proceed now? We can talk about buying a support plan after I know if the reported problem is a bug or not.

Regards

Christa
Jeanine Zhang-MSFT 9,431 Reputation points Microsoft Vendor

2024-06-26T09:23:23.52+00:00

This is a paid support. You need to be charged first. And the if the support engineer determines that the issue is the result of a bug, the fee will be refunded.

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How to correctly initialize MediaCaptureInitializationSettings for an IP Camera?