Store app MFT with multiple input streams

Question

Hi,

I am using IMFTransform with MediaCapture::AddAffectAsync.  Is it possible that my MFT can accept more than one input stream?  If so, how to do this?

Thanks,

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SAP

Answer 1

Yes, I check the IMFTransform::AddInputStreams can be used in Windows Store App. You can follow the steps in this document
http://msdn.microsoft.com/en-us/library/windows/desktop/aa965264(v=vs.85).aspx

Best regards,
Jesse

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Jesse Jiang
MSDN Community Support | Feedback to us
Develop and promote your apps in Windows Store
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Answer 2

Hi Jesse,

Thanks for your response.  Yes, I can see that this is a way to introduce additional streams.  However, isn't the client supposed to call these methods?  I'm not sure how to fit that into my store app.  Here is a pseudo code snippet of how I do this. 

MediaCapture^ mediaCapture = ref new MediaCapture
MediaCaptureInitializationSettings settings = ref new MediaCaptureInitializationSettings
settings->StreamingCaptureMode = AudioAndVideo;
settings->VideoDeviceId = MyWebCam->Id
settings->AudioDeviceId = MyAudioDevice->Id (webcam mic)
mediaCapture->InitializeAsync(settings)
mediaCapture->StartPreviewAsync()
mediaCapture->AddEffectAsync(VideoRecord, MftId)
then what???? 

Where do I call AddInputStreams?  It's the client which is supposed to make these calls (as per docs), but I don't see how I can get the client to do this.

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SAP