net.sf.fmj.media

Class SleepHelper

java.lang.Object

net.sf.fmj.media.SleepHelper

public class SleepHelper
extends java.lang.Object

Helps calculate and sleep based on buffer timestamps; useful for rendering media at the correct rate. TODO: it is strange that we use this in the RendererNode (which calls the Renderer), and in the RTPSyncBufferMux (but not in the MuxNode). This implies that Multiplexers are responsible for timing but not Renderers. This is perhaps a reasonable assumption, but needs to be checked against JMF.

Author:

Ken Larson

Field Summary

Fields

Modifier and Type	Field and Description
static long	MILLI_TO_NANO The number of nanoseconds in a millisecond.

Constructor Summary

Constructors

Constructor and Description
SleepHelper()

Method Summary

Methods

Modifier and Type	Method and Description
long	calculateSleep(long currentTimestamp)
void	reset()
void	sleep(long currentTimestamp)

Methods inherited from class java.lang.Object

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

Field Detail

MILLI_TO_NANO

public static long MILLI_TO_NANO

The number of nanoseconds in a millisecond.

Constructor Detail

SleepHelper

public SleepHelper()

Method Detail

reset

public void reset()

sleep

public void sleep(long currentTimestamp)
           throws java.lang.InterruptedException

Throws:

java.lang.InterruptedException

calculateSleep

public long calculateSleep(long currentTimestamp)