MV Alignment DirectShow Filter

The MontiVision Alignment filter rotates and displaces the input video stream.

File:	Alignment.ax
CLSID:	CLSID_MVAlignment

Interface

IMVAlignment

Supported COM Events

The filter supports following events through the IMVFilterEvents interface. Look at the filter events page for more information.

Event	Value	Description
MV_ALGORITHM_START_EVENT	0	A filter starts processing a video frame or sample.
MV_ALGORITHM_END_EVENT	1	A filter finishes processing a video frame or sample.

Supported I/O Pins

I/O Pin	Corresponding method	Discription
Angle In [Double] [INT16]	IMVAlignment::put_Angle	Sets the rotation angle.
xPosition [UINT16]	IMVAlignment::put_xPosition	Sets the output position for the videos horizontal centre. E.G. if the video stream width is 640 pixels and the xPosition is set to 320, the video stream will not be horizontally displaced. If xPosition is 300, the video stream will be shifted 20 pixels to the left.
yPosition [UINT16]	IMVAlignment::put_yPosition	Sets the output position for the video's vertical centre.

Attention:
I/O Pins are dominant, that means that they have a higher priority than the corresponding method of the filters interface!

MV Alignment Property Page

Uses the IMVAlignment configuration interface.

MontiVision Alignment DirectShow Filter Property Page

Angle	Rotation angle
Horizontal offset	Output position for the video's horizontal centre.
Vertical offset	Output position for the video's vertical centre.
Interpolation	Nearest neighbour, linear or cubic interpolation.
Background colour	Colour for filling the background regions.