public synchronized boolean waitForState(int state) {
switch (state) {
case Processor.Configured:
p.configure();
break;
case Controller.Realized:
p.realize();
break;
case Controller.Prefetched:
p.prefetch();
break;
case Controller.Started:
p.start();
break;
}
while (p.getState() < state && !error) {
try {
wait(1000);
} catch (Exception e) {
}
}
// p.removeControllerListener(this);
return !(error);
}
/**
* Callback for controller events. This method is called by the processor whenever state changes.
*
* @param event - describes the nature of the state change.
*/
public synchronized void controllerUpdate(ControllerEvent event) {
if (event instanceof ConfigureCompleteEvent) {
// ConfigurationCompleteEvents come after we
// call configure() and before we can call realize().
// At this point we can query the controls to figure
// out what tracks we have.
// Debug.trace("ConfigureCompleteEvent");
setHandlers();
// set content descriptor to null
// so that the processor can be used as a player
processor.setContentDescriptor(null);
// request transition to realized state
processor.realize();
} else if (event instanceof RealizeCompleteEvent) {
// RealizeCompleteEvents come after we call realize() and
// before we can call start() or do anything else interesting.
// Debug.trace("RealizeCompleteEvent");
controlThread.setState(REALIZED | REWOUND);
// at this point we should be able to access duration
// we convert it to the vrml convention (-1 for unknown)
double vrmlDuration;
Time duration = processor.getDuration();
if (duration == Duration.DURATION_UNKNOWN || duration == Duration.DURATION_UNBOUNDED) {
vrmlDuration = -1.0;
} else {
vrmlDuration = duration.getSeconds();
}
videoHandler.videoStreamDuration(vrmlDuration);
// finally we call prefetch will will send the first
// frame to the video handler.
processor.prefetch();
} else if (event instanceof StartEvent) {
controlThread.setState(STARTED); // set STARTED
controlThread.unsetState(REWOUND); // clear REWOUND
} else if (event instanceof StopEvent) {
// includes EndOfMediaEvent, StopByRequestEvent
controlThread.unsetState(STARTED); // clear STARTED
} else if (event instanceof MediaTimeSetEvent) {
controlThread.setState(TIMESET); // notify any waiting thread
}
}
