IVMRDeinterlaceControl::GetActualDeinterlaceMode method (strmif.h)

[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

The GetActualDeinterlaceMode method returns the deinterlacing mode that the VMR is using for a specified stream.

Syntax

HRESULT GetActualDeinterlaceMode(
  [in]  DWORD  dwStreamID,
  [out] LPGUID lpDeinterlaceMode
);

Parameters

[in] dwStreamID

Index of the video stream.

[out] lpDeinterlaceMode

Pointer to a variable that receives a GUID value that identifies the deinterlacing mode. The method returns GUID_NULL if the VMR has not initialized the deinterlacing hardware, or if the VMR determines that this stream should not be deinterlaced.

Return value

Returns an HRESULT value. Possible values include the following:

Return code	Description
E_INVALIDARG	Invalid stream number.
E_POINTER	NULL pointer argument.
S_OK	Success.
VFW_E_VMR_NOT_IN_MIXER_MODE	The VMR is not in mixer mode.

Requirements

Requirement	Value
Minimum supported client	Windows XP with SP1 [desktop apps only]
Minimum supported server	Windows Server 2003 [desktop apps only]
Target Platform	Windows
Header	strmif.h (include Dshow.h)
Library	Strmiids.lib

See also

Error and Success Codes

IVMRDeinterlaceControl Interface

Using the Video Mixing Renderer