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IMFMediaEngineEx::GetStreamAttribute method

Gets a stream-level attribute from the media resource.

Syntax


HRESULT GetStreamAttribute(
  [in]   DWORD dwStreamIndex,
  [in]   REFGUID guidMFAttribute,
  [out]  PROPVARIANT *pvValue
);

Parameters

dwStreamIndex [in]

The zero-based index of the stream. To get the number of streams, call IMFMediaEngineEx::GetNumberOfStreams.

guidMFAttribute [in]

The attribute to query. Possible values are listed in the following topics:

pvValue [out]

A pointer to a PROPVARIANT that receives the value. The method fills the PROPVARIANT with a copy of the stored value. Call PropVariantClear to free the memory allocated by the method.

Return value

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Requirements

Minimum supported client

Windows 8 [desktop apps | Windows Store apps]

Minimum supported server

Windows Server 2012 [desktop apps | Windows Store apps]

Header

Mfmediaengine.h

See also

IMFMediaEngineEx

 

 

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