au.edu.jcu.v4l4j

Class ResolutionInfo.StepwiseResolution

java.lang.Object

au.edu.jcu.v4l4j.ResolutionInfo.StepwiseResolution

Enclosing class:

ResolutionInfo

public static class ResolutionInfo.StepwiseResolution
extends Object

This class encapsulates information about supported capture resolutions for a video device. The supported resolutions are continuous values, comprised between a minimum and a maximum, in given increments (called the step value).
For instance, for a device supporting capture resolutions between 160x120 and 800x600 in increments of 160x120, the following resolutions are supported: 160x120, 320x240, 480x360, 640x480, 800x600.
A StepwiseResolution object matching the above criteria will contain:

• StepwiseResolution.minWidth = 160
• StepwiseResolution.minHeight = 120
• StepwiseResolution.stepWidth = 160
• StepwiseResolution.stepHeight= 120
• StepwiseResolution.maxWidth = 800
• StepwiseResolution.maxHeight = 600

These values can also be obtained using the accessor methods.

Objects of this class also contains two FrameInterval objects providing information on supported frame intervals for capture at the minimum resolution (getMinResFrameInterval()) and maximum resolution (getMaxResFrameInterval()). You can find out supported frame intervals for any other intermediate resolution by calling DeviceInfo.listIntervals(ImageFormat, int, int). A StepwiseResolution object is not directly instantiated. Instead, it can be obtained through a ResolutionInfo.

Author:

gilles

Field Summary

Fields

Modifier and Type	Field and Description
int	maxHeight The minimum, maximum and step values for both width and height
FrameInterval	maxInterval The frame interval object containing information on supported frame intervals for capture at the maximum resolution (maxWidth x maxHeight).
int	maxWidth The minimum, maximum and step values for both width and height
int	minHeight The minimum, maximum and step values for both width and height
FrameInterval	minInterval The frame interval object containing information on supported frame intervals for capture at the minimum resolution (minWidth x minHeight).
int	minWidth The minimum, maximum and step values for both width and height
int	stepHeight The minimum, maximum and step values for both width and height
int	stepWidth The minimum, maximum and step values for both width and height

Method Summary

Modifier and Type	Method and Description
int	getHeightStep() This method returns the height step.
int	getMaxHeight() This method returns the maximum height.
FrameInterval	getMaxResFrameInterval() This method returns the frame interval object, containing information on all supported frame interval at the maximum resolution (maxWidth x maxHeight)
int	getMaxWidth() This method returns the maximum width.
int	getMinHeight() This method returns the minimum height.
FrameInterval	getMinResFrameInterval() This method returns the frame interval object, containing information on all supported frame interval at the minimum resolution (minWidth x minHeight)
int	getMinWidth() This method returns the minimum width.
int	getWidthStep() This method returns the width step.
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

minWidth

public final int minWidth

The minimum, maximum and step values for both width and height

maxWidth

public final int maxWidth

The minimum, maximum and step values for both width and height

stepWidth

public final int stepWidth

The minimum, maximum and step values for both width and height

minHeight

public final int minHeight

The minimum, maximum and step values for both width and height

maxHeight

public final int maxHeight

The minimum, maximum and step values for both width and height

stepHeight

public final int stepHeight

The minimum, maximum and step values for both width and height

minInterval

public final FrameInterval minInterval

The frame interval object containing information on supported frame intervals for capture at the minimum resolution (minWidth x minHeight).

maxInterval

public final FrameInterval maxInterval

The frame interval object containing information on supported frame intervals for capture at the maximum resolution (maxWidth x maxHeight).

Method Detail

getMinWidth

public int getMinWidth()

This method returns the minimum width.

Returns:

the minimum width

getMaxWidth

public int getMaxWidth()

This method returns the maximum width.

Returns:

the maximum width

getWidthStep

public int getWidthStep()

This method returns the width step.

Returns:

the width step

getMinHeight

public int getMinHeight()

This method returns the minimum height.

Returns:

the minimum height

getMaxHeight

public int getMaxHeight()

This method returns the maximum height.

Returns:

the maximum height

getHeightStep

public int getHeightStep()

This method returns the height step.

Returns:

the height step

getMinResFrameInterval

public FrameInterval getMinResFrameInterval()

This method returns the frame interval object, containing information on all supported frame interval at the minimum resolution (minWidth x minHeight)

Returns:

the frame interval supported at the minimum resolution (minWidth x minHeight)

getMaxResFrameInterval

public FrameInterval getMaxResFrameInterval()

This method returns the frame interval object, containing information on all supported frame interval at the maximum resolution (maxWidth x maxHeight)

Returns:

the frame interval supported at the maximum resolution (maxWidth x maxHeight)

toString

public String toString()

Overrides:

toString in class Object