com.sun.dtv.media.format
Class Transformation

java.lang.Object
  com.sun.dtv.media.format.Transformation

public class Transformation
extends Object

This class represents a container for transformation information for a video transformation. It is used as an input to the VideoFormatControl. Clipping, scaling and position of the video. All transformations have to be applied after ETR154 up-scaling.

Constructor Summary

Transformation(Rectangle clippingRectangle, float horizontalScalingFactor, float verticalScalingFactor, Point position)
Creates a new instance of a Transformation for a video stream.

Method Summary

float	getHorizontalScalingFactor() Returns the horizontal scaling factor.
Point	getPosition() Returns the position of the video.
Rectangle	getRegion() This method returns a rectangle giving the display region of the video.
float	getVerticalScalingFactor() Returns the vertical scaling factor.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Transformation

public Transformation(Rectangle clippingRectangle,
                      float horizontalScalingFactor,
                      float verticalScalingFactor,
                      Point position)

Creates a new instance of a Transformation for a video stream.

Parameters:

clippingRectangle - defines the clipping rectangle for the decoded video after ETR154 up-sampling, if any; or null if clipping is not supported

horizontalScalingFactor - the horizontal scaling factor for this video

verticalScalingFactor - the vertical scaling factor for this video

position - the position on the screen for the video

Method Detail

getRegion

public Rectangle getRegion()

This method returns a rectangle giving the display region of the video. If clipping is not supported, the returned value is null.

Returns:

rectangle of the decoded video that will be displayed after ETR154 up-sampling if any, or null if clipping is not supported

getHorizontalScalingFactor

public float getHorizontalScalingFactor()

Returns the horizontal scaling factor.

Returns:

the horizontal scaling factor

getVerticalScalingFactor

public float getVerticalScalingFactor()

Returns the vertical scaling factor.

Returns:

the vertical scaling factor

getPosition

public Point getPosition()

Returns the position of the video.

Returns:

the location of the video on the screen coordinate space.