MFPKEY_MOTIONSEARCHRANGE Property

Specifies the range used in motion searches.

Constant for IPropertyBag

g_wszWMVCMotionSearchRange

Data Type

VT_I4

Default Value

0

Remarks

This property may be set to one of the following values. H denotes horizontal range and V denotes vertical range. All ranges are given in pixels.

Value Range
0 +63.75/-64.0 H, +31.75/-32.0 V
1 +127.75/-128.0 H, +63.75/-64.0 V
2 +511.75/-512.0 H, +127.75/-128.0 V
3 +1023.75/-1024.0 H, +255.75/-256.0 V
-1 Macroblock-adaptive (automatic)

 

This property controls the size of the frame area that the codec will search for an element that may have exhibited motion between frames. A larger search window will help find faster motion but will require more CPU time. The CPU requirements are approximately doubled at each level.

The automatic mode (-1) will dynamically select the most efficient mode.

Requirements

Minimum supported client
Windows XP [desktop apps only]
Minimum supported server
Windows Server 2003 [desktop apps only]
Header
Wmcodecdsp.h

See also

Media Foundation Properties