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IVMRDeinterlaceControl9::GetDeinterlacePrefs

  • 아티클
 
Microsoft DirectShow 9.0

IVMRDeinterlaceControl9::GetDeinterlacePrefs

The GetDeinterlacePrefs method queries how the VMR will select a deinterlacing mode if it cannot use the preferred deinterlacing mode.

Syntax

  HRESULT GetDeinterlacePrefs(

  
  DWORD *
  lpdwDeinterlacePrefs

  );

Parameters

lpdwDeinterlacePrefs

[in]  Pointer to a variable that receives a member of the VMR9DeinterlacePrefs enumeration.

Return Values

Returns an HRESULT value. Possible values include the following:

Return Code Description
E_POINTER NULL pointer argument.
S_OK Success.
VFW_E_VMR_NOT_IN_MIXER_MODE The VMR is not in mixer mode.

Remarks

By default, the preferred deinterlacing mode is the first mode reported by the driver. The application can set the preferred mode by calling the IVMRDeinterlaceControl9::SetDeinterlaceMode method. If the VMR cannot use the preferred mode, it will fall back to another mode as specified by the dwDeinterlacePrefs parameter.

Requirements

Header: Include D3d9.h, Vmr9.h.

Library: Use Strmiids.lib.

See Also