VMRMixerPrefs Enumeration
| Microsoft DirectShow 9.0 |
VMRMixerPrefs Enumeration
The VMRMixerPrefs enumeration contains flags that specify decimation, filtering, and color space information that will be used when the video image is created on the DirectDraw surface.
Syntax
MixerPref_ARAdjustXorY = 0x00000004,
MixerPref_DecimationReserved = 0x00000008,
Members
MixerPref_NoDecimation
No decimation. The video will be rendered onto the surface in its native size.
MixerPref_DecimateOutput
Decimate output by 2 in the x and y directions.
MixerPref_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. For more information, see Aspect Ratio Correction.
MixerPref_DecimationReserved
Reserved.
MixerPref_DecimateMask
Bitmask to isolate the flags that control decimation. (This value is not a valid flag.)
MixerPref_BiLinearFiltering
Use bi-linear filtering. This is the default type of filtering, but not all cards can support it.
MixerPref_PointFiltering
Use point filtering.
MixerPref_FilteringMask
Bitmask to isolate the flags the control filtering. (This value is not a valid flag.)
MixerPref_RenderTargetRGB
The render target is an RGB surface.
MixerPref_RenderTargetYUV
The render target is a YUV surface. Requires Windows XP Service Pack 2. For more information, see YUV Mixing Mode.
MixerPref_RenderTargetYUV420
The render target is a YUV 4:2:0 surface. Deprecated.
MixerPref_RenderTargetYUV422
The render target is a YUV 4:2:2 surface. Deprecated.
MixerPref_RenderTargetYUV444
The render target is a YUV 4:4:4 surface. Deprecated.
MixerPref_RenderTargetReserved
Reserved.
MixerPref_RenderTargetMask
Bitmask to isolate flags that control the render target. (This value is not a valid flag.)
MixerPref_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 will be applied when the VMR mixer composes the next video frame.
MixerPref_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 is applied when the VMR mixer composes the next video frame.
MixerPref_DynamicReserved
Reserved.
MixerPref_DynamicMask
Bitmask to isolate the MixerPref_DynamicSwitchToBOB and MixerPref_DynamicDecimateBy2 flags. (This value is not a valid flag.)
Requirements
Header: Dshow.h
See Also