IMFSinkWriterEx::GetTransformForStream method

Gets a pointer to a Media Foundation transform (MFT) for a specified stream.

Syntax

HRESULT GetTransformForStream(
  [in]  DWORD        dwStreamIndex,
  [in]  DWORD        dwTransformIndex,
  [out] GUID         *pGuidCategory,
  [out] IMFTransform **ppTransform
);

Parameters

dwStreamIndex [in]

The zero-based index of a stream.

dwTransformIndex [in]

The zero-based index of the MFT to retreive.

pGuidCategory [out]

Receives a pointer to a GUID that specifies the category of the MFT. For a list of possible values, see MFT_CATEGORY.

ppTransform [out]

Receives a pointer to the IMFTransform interface of the MFT. The caller must release the interface.

Return value

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

Requirements

See also

IMFSinkWriterEx