IMFDeviceTransform::GetOutputStreamAttributes method (mftransform.h)

The GetOutputStreamAttributes method gets the attribute store for an output stream on this Media Foundation transform (MFT).

Syntax

HRESULT GetOutputStreamAttributes(
  DWORD         dwOutputStreamID,
  IMFAttributes **ppAttributes
);

dwOutputStreamID

The Stream ID of the output stream whose state needs to be retrieved.

ppAttributes

Receives a pointer to the IMFAttributes interface. The caller must release the interface.

The method returns an HRESULT. Possible values include but not limited to values given in the following table.

Return code	Description
S_OK	Initialization succeeded.
MF_E_INVALIDREQUEST	Device MFT could not support the request at this time.
MF_E_INVALIDSTREAMNUMBER	Returned when an invalid stream ID is passed.

This function is used by the DTM to get a specific output stream’s attribute store.