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IVMRDeinterlaceControl9 interface

The IVMRDeinterlaceControl9 interface supports hardware-accelerated deinterlacing using the Video Mixing Renderer Filter 9 (VMR-9). This interface enables applications or other filters to control how the VMR manages DirectX Video Acceleration (DirectX VA) hardware deinterlacing.

Members

The IVMRDeinterlaceControl9 interface inherits from the IUnknown interface. IVMRDeinterlaceControl9 also has these types of members:

Methods

The IVMRDeinterlaceControl9 interface has these methods.

MethodDescription
GetActualDeinterlaceMode

Returns the deinterlacing mode that the VMR is using for a specified stream.

GetDeinterlaceMode

Retrieves the deinterlacing mode for the specified video stream.

GetDeinterlaceModeCaps

Retrieves the capabilities of a specific deinterlacing mode supported by the graphics device driver.

GetDeinterlacePrefs

Queries how the VMR will select a deinterlacing mode if it cannot use the preferred mode.

GetNumberOfDeinterlaceModes

Retrieves the deinterlacing modes available to the VMR for the specified video format.

SetDeinterlaceMode

Sets the deinterlacing mode for the specified video stream.

SetDeinterlacePrefs

Specifies how the VMR will select a deinterlacing mode if it cannot use the preferred mode.

 

Remarks

Deinterlacing modes are identified by GUIDs. The graphics device driver returns an array of GUIDs for the modes that it supports. The array is sorted in order of quality, from best quality to lowest quality. To retrieve the list of GUIDs, call the GetNumberOfDeinterlaceModes method. To obtain more information about a particular mode, pass this GUID to the GetDeinterlaceModeCaps method. To configure the VMR to use a particular mode, call the SetDeinterlaceMode method.

To determine what de-interlacing modes are available, perform these steps:

  1. Create the VMR-9 and put it into mixing mode.
  2. Query the VMR-9 for the IVMRDeinterlaceControl9 interface
  3. Fill in a VMRVideoDesc structure that describes the format of the interlaced video.
  4. Call IVMRDeinterlaceControl9::GetNumberOfDeinterlaceModes to get the number of available de-interlacing modes.
  5. For each mode returned, call IVMRDeinterlaceControl::GetDeinterlaceModeCaps to get information about the mode.

Requirements

Minimum supported client

Windows XP with SP2 [desktop apps only]

Minimum supported server

Windows Server 2008 [desktop apps only]

Header

Vmr9.h

Library

Strmiids.lib

See also

Setting Deinterlace Preferences
Using the Video Mixing Renderer
Video Mixing Renderer Filter 9

 

 

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