VMR9MixerPrefs Enumeration
| Microsoft DirectShow 9.0 |
VMR9MixerPrefs Enumeration
The VMR9MixerPrefs enumeration type contains flags that specify how the Video Mixing Render 9 filter (VMR-9) mixes the video streams. Settings include decimation, filtering, and render target preferences.
Syntax
typedef enum {
MixerPref9_NoDecimation = 0x00000001,
MixerPref9_DecimateOutput = 0x00000002,
MixerPref9_ARAdjustXorY = 0x00000004,
MixerPref9_NonSquareMixing = 0x00000008,
MixerPref9_DecimateMask = 0x0000000F,
MixerPref9_BiLinearFiltering = 0x00000010,
MixerPref9_PointFiltering = 0x00000020,
MixerPref9_AnisotropicFiltering = 0x00000040,
MixerPref9_PyramidalQuadFiltering = 0x00000080,
MixerPref9_GaussianQuadFiltering = 0x00000100,
MixerPref9_FilteringReserved = 0x00000E00,
MixerPref9_FilteringMask = 0x00000FF0,
MixerPref9_RenderTargetRGB = 0x00001000,
MixerPref9_RenderTargetReserved = 0x000FC000,
MixerPref9_RenderTargetMask = 0x000FF000
} VMR9MixerPrefs;
Members
MixerPref9_NoDecimation
No decimation. The video will be rendered onto the surface in its native size.
MixerPref9_DecimateOutput
Decimate output by 2 in the x and y directions.
MixerPref9_ARAdjustXorY
Adjust the horizontal or vertical size of the video streams to match the target aspect ratio. If this flag is not present, the VMR adjusts the horizontal size only. Requires Windows XP Service Pack 2. For more information, see Aspect Ratio Correction.
MixerPref9_ NonSquareMixing
Do not perform aspect ratio correction on the composited stream if the input video streams have the same aspect ratio. Requires Windows XP Service Pack 2. For more information, see Non-Square Mixing.
MixerPref9_DecimateMask
Bitmask to isolate the flags that control decimation. (This value is not a valid flag.)
MixerPref9_BiLinearFiltering
Bilinear interpolation filtering. A weighted average of a 2 x 2 area of neighboring pixels is used.
MixerPref9_PointFiltering
Point filtering. The value of the nearest is pixel is used.
MixerPref9_AnisotropicFiltering
Anisotropic filtering.
MixerPref9_PyramidalQuadFiltering
4-sample tent filtering.
MixerPref9_GaussianQuadFiltering
4-sample Gaussian filterng.
MixerPref9_FilteringReserved
Reserved for future use.
MixerPref9_FilteringMask
Bitmask to isolate flags that control filtering. (This value is not a valid flag.)
MixerPref9_RenderTargetRGB
Use an RGB render target.
MixerPref9_RenderTargetYUV
Indicates that the target is a YUV surface. Requires Windows XP Service Pack 2. For more information, see YUV Mixing Mode.
MixerPref9_RenderTargetReserved
Reserved for future use.
MixerPref9_RenderTargetMask
Bitmaks to isolate flags that control the render target. (This value is not a valid flag.)
MixerPref9_DynamicSwitchToBOB
In YUV mixing mode only, this flag switches the VMR to bob deinterlacing. You can add or remove this flag while the filter graph is running; the change is applied when the VMR mixer composes the next video frame.
MixerPref9_DynamicDecimateBy2
In YUV mixing mode only, this flag causes the VMR to decimate the image by a factor of 2 horizontally and vertically. You can add or remove this flag while the filter graph is running; the change will be applied when the VMR mixer composes the next video frame.
MixerPref9_DynamicReserved
Reserved.
MixerPref9_DynamicMask
Bitmask to isolate the MixerPref9_DynamicSwitchToBOB and MixerPref9_DynamicDecimateBy2 flags. (This value is not a valid flag.)
Requirements
Header: Vmr9.h
See Also