javazoom.jl.player
Class PlayerApplet

java.lang.Object
  java.awt.Component
      java.awt.Container
          java.awt.Panel
              java.applet.Applet
                  javazoom.jl.player.PlayerApplet

All Implemented Interfaces:

ImageObserver, MenuContainer, Serializable, Runnable, Accessible

public class PlayerApplet
extends Applet
implements Runnable

A simple applet that plays an MPEG audio file. The URL (relative to the document base) is passed as the "audioURL" parameter.

Since:

0.0.8

Author:

Mat McGowan

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.applet.Applet

Applet.AccessibleApplet

Nested classes/interfaces inherited from class java.awt.Panel

Panel.AccessibleAWTPanel

Nested classes/interfaces inherited from class java.awt.Container

Container.AccessibleAWTContainer

Nested classes/interfaces inherited from class java.awt.Component

Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy

Field Summary

static String

AUDIO_PARAMETER

Fields inherited from class java.awt.Component

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Fields inherited from interface java.awt.image.ImageObserver

ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

Constructor Summary

PlayerApplet()

Method Summary

protected Thread	createPlayerThread() Creates a new thread used to run the audio player.
void	destroy()
protected AudioDevice	getAudioDevice() Retrieves the AudioDevice instance that will be used to sound the audio data.
protected String	getAudioFileName()
protected InputStream	getAudioStream() Retrieves the InputStream that provides the MPEG audio stream data.
protected URL	getAudioURL()
String	getFileName()
void	init() Initializes this applet.
protected void	play(InputStream in, AudioDevice dev) Decompresses audio data from an InputStream and plays it back through an AudioDevice.
void	run() The run method for the audio player thread.
void	setFileName(String name) Sets the URL of the audio stream to play.
void	start() Starts this applet.
void	stop() Stops this applet.
protected void	stopPlayer() Stops the audio player.

Methods inherited from class java.applet.Applet

getAccessibleContext, getAppletContext, getAppletInfo, getAudioClip, getAudioClip, getCodeBase, getDocumentBase, getImage, getImage, getLocale, getParameter, getParameterInfo, isActive, newAudioClip, play, play, resize, resize, setStub, showStatus

Methods inherited from class java.awt.Panel

addNotify

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getAlignmentX, getAlignmentY, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getInsets, getLayout, getListeners, getMaximumSize, getMinimumSize, getMousePosition, getPreferredSize, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paint, paintComponents, paramString, preferredSize, print, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, removeNotify, setComponentZOrder, setFocusCycleRoot, setFocusTraversalKeys, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setFont, setLayout, transferFocusBackward, transferFocusDownCycle, update, validate, validateTree

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, coalesceEvents, contains, contains, createImage, createImage, createVolatileImage, createVolatileImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBaseline, getBaselineResizeBehavior, getBounds, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphics, getGraphicsConfiguration, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocation, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, checkImage, checkImage, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isOpaque, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, printAll, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, reshape, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeysEnabled, setForeground, setIgnoreRepaint, setLocale, setLocation, setLocation, setMaximumSize, setMinimumSize, setName, setPreferredSize, setSize, setSize, setVisible, show, show, size, toString, transferFocus, transferFocusUpCycle

Methods inherited from class java.lang.Object

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

Field Detail

AUDIO_PARAMETER

public static final String AUDIO_PARAMETER

See Also:

Constant Field Values

Constructor Detail

PlayerApplet

public PlayerApplet()

Method Detail

getAudioDevice

protected AudioDevice getAudioDevice()
                              throws JavaLayerException

Retrieves the AudioDevice instance that will be used to sound the audio data.

Returns:

an audio device instance that will be used to sound the audio stream.

Throws:

JavaLayerException

getAudioStream

protected InputStream getAudioStream()

Retrieves the InputStream that provides the MPEG audio stream data.

Returns:

an InputStream from which the MPEG audio data is read, or null if an error occurs.

getAudioFileName

protected String getAudioFileName()

getAudioURL

protected URL getAudioURL()

setFileName

public void setFileName(String name)

Sets the URL of the audio stream to play.

getFileName

public String getFileName()

stopPlayer

protected void stopPlayer()
                   throws JavaLayerException

Stops the audio player. If the player is already stopped this method is a no-op.

Throws:

JavaLayerException

play

protected void play(InputStream in,
                    AudioDevice dev)
             throws JavaLayerException

Decompresses audio data from an InputStream and plays it back through an AudioDevice. The playback is run on a newly created thread.

Parameters:

in - The InputStream that provides the MPEG audio data.

dev - The AudioDevice to use to sound the decompressed data.

Throws:

JavaLayerException - if there was a problem decoding or playing the audio data.

createPlayerThread

protected Thread createPlayerThread()

Creates a new thread used to run the audio player.

Returns:

A new Thread that, once started, runs the audio player.

init

public void init()

Initializes this applet.

Overrides:

init in class Applet

start

public void start()

Starts this applet. An input stream and audio device are created and passed to the play() method.

Overrides:

start in class Applet

stop

public void stop()

Stops this applet. If audio is currently playing, it is stopped.

Overrides:

stop in class Applet

destroy

public void destroy()

Overrides:

destroy in class Applet

run

public void run()

The run method for the audio player thread. Simply calls play() on the player to play the entire stream.

Specified by:

run in interface Runnable