Package org.web3d.vrml.renderer.common.input.movie

Class MovieDecoder

java.lang.Object

org.web3d.vrml.renderer.common.input.movie.MovieDecoder

All Implemented Interfaces:

javax.media.ControllerListener

public class MovieDecoder
extends Object
implements javax.media.ControllerListener

This class wraps an instance of the JMF Processor class. It decodes a mpeg video stream and sends the audio and video frames to the handlers specified at creation time.

Version:

$Revision: 1.8 $

Author:

Guy Carpenter

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	MovieDecoder.Action	This is the base class for actions performed on the processor.
class	MovieDecoder.ControlThread	This thread class consumes the action queue and executes actions on the processor.
class	MovieDecoder.RewindAction	This action rewinds the processor and starts it playing.
class	MovieDecoder.SetRateAction	This action class sets the playback rate.
class	MovieDecoder.StartAction	This action starts the processor running.
class	MovieDecoder.StopAction	This action class stops a running processor.

Field Summary

Fields

Modifier and Type	Field	Description
final int	ALLSTATES
final int	REALIZED
final int	REWOUND
final int	STARTED
final int	TIMESET

Constructor Summary

Constructors

Constructor	Description
MovieDecoder(VideoStreamHandler videoStreamHandler)	Constructor for the MovieDecoder.

Method Summary

Modifier and Type	Method	Description
void	controllerUpdate(javax.media.ControllerEvent event)	Callback for controller events.
void	init(String mediaFile)	Initializes the decoder.
void	rewind()	Stops, Rewinds and Restarts the processor.
void	setRate(float speed)	Sets the speed (rate) of playout.
void	start()	Starts the processor running.
void	stop()	Stops the processor.

Methods inherited from class java.lang.Object

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

Field Details

REALIZED

public final int REALIZED

See Also:

• Constant Field Values

STARTED

public final int STARTED

See Also:

• Constant Field Values

REWOUND

public final int REWOUND

See Also:

• Constant Field Values

TIMESET

public final int TIMESET

See Also:

• Constant Field Values

ALLSTATES

public final int ALLSTATES

See Also:

• Constant Field Values

Constructor Details

MovieDecoder

public MovieDecoder(VideoStreamHandler videoStreamHandler)

Constructor for the MovieDecoder. Call init() after construction with a URL.

Parameters:

videoStreamHandler - - handler to be called with each video frame.

Method Details

init

public void init(String mediaFile)

Initializes the decoder. The file will be opened, decoding will start, and the first frame of the movie will be sent to the handlers.

Parameters:

mediaFile - - the URL of the media file to be loaded

start

public void start()

Starts the processor running. This call queues an asynchronous request which may not be acted on immediately.

stop

public void stop()

Stops the processor. This call queues an asynchronous request which may not be acted upon immediately

rewind

public void rewind()

Stops, Rewinds and Restarts the processor. This call queues an asynchronous request which may not be acted upon immediately

setRate

public void setRate(float speed)

Sets the speed (rate) of playout. In theory negative values are allowed, but may not be supported by the player.

Parameters:

speed - - playback rate scale factor. 1.0 is normal speed.

controllerUpdate

public void controllerUpdate(javax.media.ControllerEvent event)

Callback for controller events. This method is called by the processor whenever state changes.

Specified by:

controllerUpdate in interface javax.media.ControllerListener

Parameters:

event - - describes the nature of the state change.