Package org.opencastproject.metadata.mpeg7

Class SpatioTemporalDecompositionImpl

java.lang.Object

org.opencastproject.metadata.mpeg7.SpatioTemporalDecompositionImpl

All Implemented Interfaces:

org.opencastproject.mediapackage.XmlElement, SpatioTemporalDecomposition

public class SpatioTemporalDecompositionImpl
extends Object
implements SpatioTemporalDecomposition

Default implementation of a spatio temporal decomposition.

Field Summary

Fields

Modifier and Type	Field	Description
protected boolean	hasGap	Flag to indicate whether the elements in this decomposition may exhibit gaps
protected boolean	hasOverlap	Flag to indicate whether the elements in this decomposition may overlap
protected List<VideoText>	videoTexts	The list of videotext elements

Constructor Summary

Constructors

Constructor	Description
SpatioTemporalDecompositionImpl(boolean gap, boolean overlap)	Creates a new spatio temporal decomposition.

Method Summary

Modifier and Type	Method	Description
VideoText	addVideoText(Textual text, Rectangle boundary, MediaTime time)	Adds the specified text as a VideoText element to the decomposition.
void	addVideoText(VideoText videoText)	Adds the VideoText element to the decomposition.
VideoText[]	getVideoText()	Returns all the video text elements from this decomposition.
VideoText	getVideoText(String id)	Returns the VideoText element with the given identifier or null if there is no such element.
boolean	hasGap()	Returns true if the segment has a gap.
boolean	isOverlapping()	Returns true if the segment overlaps with another one.
void	setGap(boolean hasGap)	Set the hasGap property indicating that there may be gaps in between the segments.
void	setOverlapping(boolean isOverlapping)	Set the isOverlapping property indicating that some segments may be overlapping.
Node	toXml(Document document)

Methods inherited from class java.lang.Object

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

Field Details

hasGap

protected boolean hasGap

Flag to indicate whether the elements in this decomposition may exhibit gaps

hasOverlap

protected boolean hasOverlap

Flag to indicate whether the elements in this decomposition may overlap

videoTexts

protected List<VideoText> videoTexts

The list of videotext elements

Constructor Details

SpatioTemporalDecompositionImpl

public SpatioTemporalDecompositionImpl(boolean gap,
 boolean overlap)

Creates a new spatio temporal decomposition.

Parameters:

gap - true if there are gaps in the decomposition

overlap - true if there are overlapping elements

Method Details

hasGap

public boolean hasGap()

Returns true if the segment has a gap.

Specified by:

hasGap in interface SpatioTemporalDecomposition

Returns:

true if the segment has a gap

See Also:

• SpatioTemporalDecomposition.hasGap()

isOverlapping

public boolean isOverlapping()

Returns true if the segment overlaps with another one.

Specified by:

isOverlapping in interface SpatioTemporalDecomposition

Returns:

true if the segment overlaps

See Also:

• SpatioTemporalDecomposition.isOverlapping()

setGap

public void setGap(boolean hasGap)

Set the hasGap property indicating that there may be gaps in between the segments.

Specified by:

setGap in interface SpatioTemporalDecomposition

Parameters:

hasGap - true if there are gaps

See Also:

• SpatioTemporalDecomposition.setGap(boolean)

setOverlapping

public void setOverlapping(boolean isOverlapping)

Set the isOverlapping property indicating that some segments may be overlapping.

Specified by:

setOverlapping in interface SpatioTemporalDecomposition

Parameters:

isOverlapping - true if elements are overlapping

See Also:

• SpatioTemporalDecomposition.setOverlapping(boolean)

addVideoText

public VideoText addVideoText(Textual text,
 Rectangle boundary,
 MediaTime time)

Adds the specified text as a VideoText element to the decomposition.

Specified by:

addVideoText in interface SpatioTemporalDecomposition

Parameters:

text - the text

boundary - the text's bounding box

time - the time and duration

Returns:

the new video text element

See Also:

• SpatioTemporalDecomposition.addVideoText(org.opencastproject.metadata.mpeg7.Textual, java.awt.Rectangle, org.opencastproject.metadata.mpeg7.MediaTime)

addVideoText

public void addVideoText(VideoText videoText)

Adds the VideoText element to the decomposition.

Specified by:

addVideoText in interface SpatioTemporalDecomposition

Parameters:

videoText - the video text

See Also:

• SpatioTemporalDecomposition.addVideoText(org.opencastproject.metadata.mpeg7.VideoText)

getVideoText

public VideoText[] getVideoText()

Returns all the video text elements from this decomposition.

Specified by:

getVideoText in interface SpatioTemporalDecomposition

Returns:

the video text elements

See Also:

• SpatioTemporalDecomposition.getVideoText()

getVideoText

public VideoText getVideoText(String id)

Returns the VideoText element with the given identifier or null if there is no such element.

Specified by:

getVideoText in interface SpatioTemporalDecomposition

Parameters:

id - the video text id

Returns:

the video text element

See Also:

• SpatioTemporalDecomposition.getVideoText(java.lang.String)

toXml

public Node toXml(Document document)

Specified by:

toXml in interface org.opencastproject.mediapackage.XmlElement

See Also:

• XmlElement.toXml(org.w3c.dom.Document)