Package gda.images.camera

Class FrameStatistics

java.lang.Object

gda.images.camera.FrameStatistics

public class FrameStatistics
extends Object

Class that can keep track of frames being 'processed' (for example, received from a network stream, decoded, or dispatched to listeners).

Field Summary

Fields

Modifier and Type	Field	Description
protected boolean	firstFrameProcessed
protected long	firstFrameProcessedTime
protected int	framesProcessed
protected long	processingHwm
protected ThreadLocal<Long>	startTimes
protected long	totalProcessingTime

Constructor Summary

Constructors

Constructor	Description
FrameStatistics(String name, int settleFrames, int reportInterval)	Creates a new statistics gathering/reporting object.

Method Summary

Modifier and Type	Method	Description
void	finishProcessingFrame()	Signals that a frame has been processed.
void	reset()	Resets this counter.
void	startProcessingFrame()

Methods inherited from class java.lang.Object

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

Field Details

firstFrameProcessed

protected boolean firstFrameProcessed

firstFrameProcessedTime

protected long firstFrameProcessedTime

framesProcessed

protected int framesProcessed

startTimes

protected ThreadLocal<Long> startTimes

totalProcessingTime

protected long totalProcessingTime

processingHwm

protected long processingHwm

Constructor Details

FrameStatistics

public FrameStatistics(String name,
 int settleFrames,
 int reportInterval)

Creates a new statistics gathering/reporting object.

Parameters:

name - name for this object

settleFrames - number of frames to ignore before beginning statistics gathering

reportInterval - the interval (in frames) at which statistics will be logged

Method Details

reset

public void reset()

Resets this counter.

startProcessingFrame

public void startProcessingFrame()

finishProcessingFrame

public void finishProcessingFrame()

Signals that a frame has been processed.