mediaframe.mpeg1
Class MPEG1

java.lang.Object
  |
  +--java.awt.Component
        |
        +--java.awt.Container
              |
              +--java.awt.Panel
                    |
                    +--java.applet.Applet
                          |
                          +--mediaframe.mpeg1.MPEG1

All Implemented Interfaces:

javax.accessibility.Accessible, java.awt.event.ActionListener, java.util.EventListener, java.awt.image.ImageObserver, java.awt.MenuContainer, java.awt.event.MouseListener, java.io.Serializable

public class MPEG1

extends java.applet.Applet

implements java.awt.event.MouseListener, java.awt.event.ActionListener

The class "MPEG1" is the main class of the MPEG1 Applet (Java MPEG inline player).

See Also:

Serialized Form

Field Summary

private java.lang.String	address The value of the "address" applet's parameter.
private Player	audio_decoder The audio player/decoder.
private io_tool	audio_stream The stream with only audio-frames.
private boolean	audioEnabled The state of the audio parameter of the applet
private boolean	autoPlay True if the applet should autoplay the movie.
boolean	buffered True if the buffering of the movie file has been finished.
private boolean	clickToPlay True if the applet should play the movie after clicking on the movie screen.
private java.awt.image.DirectColorModel	cm The RGB color model for the movie screen.
IControlPanel	controlPanel The control panel of the applet.
private boolean	correctLicense True if the player is used with the correct license key.
private float	current_volume The value of the current volume.
private java.lang.String	detect_location The location of the directory where the xx.detect.speed files are placed.
int	detected_speed Current internet connection bandwidth value (index for tables).
private Element[]	EL_ARR The array of Elements (objects that contain movie frames).
boolean	feedback_agent True if the applet should show the feedback information (speed detection, (re-)buffering).
java.lang.String[]	file_speeds Parameter names for the movie files that depend from the bandwidth value.
private java.lang.String	filename The name of the video file.
private boolean	firstAppletLoop True if the applet starts playback.
private boolean	firstLoop True if the applet should load the movie into the buffer, false if the movie already in the buffer.
boolean	float_controls True if applet's control panel should be showed only after rolloving above the movie screen.
private int	Frame_nr The last frame in "EL_ARR[]".
private int	h The height in MPEG stream.
private java.awt.MenuItem	idItem The "ID" popup menu item.
private boolean	initialized True if the set_dim() method was called by video_decoder.
private MPEG_Reader	input_reader The reader of the movie stream, contains both streams audio and video.
int[]	integer_speeds Possible bandwidth values supported by the applet.
private java.lang.String	key The license key value
private int	last_P_or_I Last P or I frame.
private boolean	licenseVerified True if the license is already verified.
private boolean	linux_platform True, if the current os is Linux.
private java.lang.String	lockedInfo The url of a web page with the description of the MEDIAFRAME LOCKED error.
private int	MAXELEMENT Number of "Element"s in "EL_ARR[]".
(package private) java.awt.Image	mf_logo The 'MediaFrame' ™ logo.
MovieScreen	movieScreen The panel on which the movie is shown.
private io_tool	mpeg_stream The stream with only video-frames.
private boolean	mute The mute sound state of the player (false if sound is on).
private java.awt.MenuItem	muteItem The "mute" popup menu item.
private java.lang.String	new_filename The file name of the movie which is used in the mediaframe_load javascript function
private int	o_h The original height in MPEG stream.
private int	o_w The original width in MPEG stream.
boolean	playbackLoop True if the applet should restart the playing after the playback is finished.
boolean	player_controls True if applet's control panel should be showed.
private boolean	playing True if the applet's state is PLAYED.
private java.awt.MenuItem	playItem The "Play" popup menu item.
(package private) java.awt.PopupMenu	popup The popup menu of the applet.
private java.lang.String	postScreen The value of the "postScreen" applet's parameter.
private java.lang.String	preScreen The value of the "preScreen" applet's parameter.
private boolean	readyToPlay True if the applet is ready to play the movie's first frame.
private boolean	rewinded True if the applet is rewinding the movie (tries to restart the playback from the begin after it is finished).
private boolean	rolloverToPlay True if the applet should play the movie after rolloving above the movie screen.
private java.awt.MenuItem	saveItem The "Save video as..." popup menu item.
private java.lang.String	saveScript The name of the script for the 'Save video as...' functionality
private boolean	saveVideoEnabled True if the 'Save video as...' functionality is enabled
boolean	show_controls True if applet's control panel is showed (has the meaning only if float_controls = true).
(package private) boolean	show_mf_logo Flag, equals true if 'MediaFrame' ™ logo is showing.
private java.net.URL	source_url The URL address of the movie file.
private java.lang.String	target The value of the "target" applet's parameter.
private MPEG_video	video_decoder The video decoder.
private int	video_length The length of the video file.
private boolean	video_license True if the license is stored in the video file.
private int	w The width in MPEG stream.
private int	window_x The width of the applet's movie screen.
private int	window_y The height of the applet's movie screen.

Fields inherited from class java.applet.Applet

Fields inherited from class java.awt.Panel

Fields inherited from class java.awt.Container

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

MPEG1()
Constructs the applet's object.

Method Summary

void	actionPerformed(java.awt.event.ActionEvent event) This method is invoked when user selects the item of applet's popup menu.
private long	decrypt(long m, long d, long n) Decrypts the long value using the private key D and the public key N.
private long	decryptBlock() Decrypts one encrypted short value.
void	destroy() Destroys the player.
private java.lang.String	detectConnectionSpeed() Detects the speed of the internet connection.
void	endRebuffering(MPEG_Reader reader) Ends the "rebuffering" of the player.
boolean	get_audio_state() Returns the mute value of the audio player.
int	get_connection_speed() Gets the current connection speed.
int	get_errorcode() Returns the code of last error.
java.lang.String	get_filename() Gets the filename of the video file.
java.lang.String	get_mf_state() Returns the state of the player (buffering/ready/playing/paused/finished/error).
int	get_video_length() Stub for method that gets the length of the movie file in milliseconds.
int	get_video_size() Gets the length of the video file in bytes.
int	get_volume() Gets the current volume as an interger value (between 1>10).
int	get_volume(java.lang.String percent) If the percent equals '%' gets the current volume as a percent value (between 0..100) otherwise returns the volume as an interger value (between 1>10).
Player	getAudioPlayer() Gets the audio player/decoder object.
private long	getCRC32(java.lang.String str) Gets the crc32 checksum of the input string.
private java.awt.Image	getEmbeddedImage(java.lang.String image_path) Gets the image that embedded into applet's jar file by it's path.
private java.awt.Image[]	getImageFiles(java.lang.String fileName, java.lang.String fileRange) Gets the image files using the base filename and the fileRange parameters.
private long	getNextRecord(java.lang.String inputKey) Decrypts the one encrypted long value.
private java.io.InputStream	getZipStream(java.io.InputStream aIs) Opens and returns the InputStream for a zip-compressed file.
void	init() Inits the applet.
boolean	isCorrectLicense() Returns true if the license is correct.
private boolean	isCorrectLicenseKey(java.lang.String license_key) Verifies the license (license_key parameter) of the video player.
boolean	isLicenseVerified() Returns true if the license is already verified.
boolean	isSoundEnabled() Gets the state of the audio player.
void	mediaframe_load(java.lang.String fileName) Loads the new movie into the video player box.
void	mouseClicked(java.awt.event.MouseEvent e) Invoked when the mouse clicks on the applet's movie screen.
void	mouseEntered(java.awt.event.MouseEvent e) Invoked when the mouse enters the applet's movie screen area.
void	mouseExited(java.awt.event.MouseEvent e) Invoked when the mouse exits the applet's movie screen area.
void	mousePressed(java.awt.event.MouseEvent e) Invoked when a mouse button has been pressed on the applet's movie screen.
void	mouseReleased(java.awt.event.MouseEvent e) Invoked when a mouse button has been released from the applet's movie screen.
private boolean	open_url() Opens a movie file or a zip archive with a movie file for downloading and buffering.
private void	openTarget() Opens an address url in the target ("self", "blank", "top", etc) window.
private float	parseVolume(java.lang.String sVolume) Parses the volume level and returns it's float representation.
void	playerEnd(MPEG_video video) Is invoked after the movie playback is finished.
void	playerEndBuffer(MPEG_Reader reader) Is invoked after buffer is filled enough to start the movie playback (when the size of the buffered data equals or greater than the value specified by the "pre_buffer" applet's parameter).
private void	playerlooprewind() Rewinds the player to startup state after the movie playback is finished.
void	playerpause() Pauses the movie playback.
void	playerplay() Starts the movie playback.
void	playerrewind() Rewinds the player to the startup state.
void	playersetmute(boolean mute) Enable or disable speaker of the player.
void	playersetvolume(java.lang.String sVolume) Sets the volume level of the player.
void	playerStop() Stops the movie playback.
void	printBufferingPercent(MPEG_Reader reader, int percent) Prints the "buffering" percent.
void	set_dim(int width, int height, int o_width, int o_height) This method is necessary because the scanner must have the possibility to resize the applet and (possibly) the frame once he has recognized the dimensions of the MPEG frames.
void	set_Pixels(int[][] Pixels, int f_idx, int f_type, long pts, int Pic_rate) The method "set_Pixels" expects the pixel data, the type and number of the next frame in display order to change the pixel values of the next image.
private void	setMuteItemState(boolean mute) Sets the "mute" menu item state to 'On' or 'Off'
void	start() The method "start()" opens up the MPEG resource and produces and starts the "MPEG_Reader" thread.
void	startRebuffering(MPEG_Reader reader) Starts the "rebuffering" of the player.
void	stop() Stop the whole player.
void	update(java.awt.Graphics g) Stub, overwrites the "update()" method of Applet (does nothing).
private void	wait_rewind() Waits until the rewind action is finished.

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, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getInsets, getLayout, getListeners, getMaximumSize, getMinimumSize, getPreferredSize, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paint, paintComponents, paramString, preferredSize, print, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, removeNotify, setFocusCycleRoot, setFocusTraversalKeys, setFocusTraversalPolicy, setFont, setLayout, transferFocusBackward, transferFocusDownCycle, validate, validateTree

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, createVolatileImage, createVolatileImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, 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, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isOpaque, 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, setName, 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

h

private int h

The height in MPEG stream.

w

private int w

The width in MPEG stream.

o_h

private int o_h

The original height in MPEG stream.

o_w

private int o_w

The original width in MPEG stream.

firstAppletLoop

private boolean firstAppletLoop

True if the applet starts playback.

filename

private java.lang.String filename

The name of the video file.

video_length

private int video_length

The length of the video file.

last_P_or_I

private int last_P_or_I

Last P or I frame.

cm

private java.awt.image.DirectColorModel cm

The RGB color model for the movie screen.

Frame_nr

private int Frame_nr

The last frame in "EL_ARR[]".

MAXELEMENT

private final int MAXELEMENT

Number of "Element"s in "EL_ARR[]".

See Also:

Constant Field Values

EL_ARR

private Element[] EL_ARR

The array of Elements (objects that contain movie frames).

playing

private boolean playing

True if the applet's state is PLAYED.

mute

private boolean mute

The mute sound state of the player (false if sound is on).

mf_logo

java.awt.Image mf_logo

The 'MediaFrame' ™ logo.

show_mf_logo

volatile boolean show_mf_logo

Flag, equals true if 'MediaFrame' ™ logo is showing.

popup

java.awt.PopupMenu popup

The popup menu of the applet.

idItem

private java.awt.MenuItem idItem

The "ID" popup menu item.

playItem

private java.awt.MenuItem playItem

The "Play" popup menu item.

muteItem

private java.awt.MenuItem muteItem

The "mute" popup menu item.

saveItem

private java.awt.MenuItem saveItem

The "Save video as..." popup menu item.

controlPanel

public IControlPanel controlPanel

The control panel of the applet.

autoPlay

private boolean autoPlay

True if the applet should autoplay the movie.

clickToPlay

private boolean clickToPlay

True if the applet should play the movie after clicking on the movie screen.

rolloverToPlay

private boolean rolloverToPlay

True if the applet should play the movie after rolloving above the movie screen.

feedback_agent

public boolean feedback_agent

True if the applet should show the feedback information (speed detection, (re-)buffering).

target

private java.lang.String target

The value of the "target" applet's parameter.

address

private java.lang.String address

The value of the "address" applet's parameter.

preScreen

private java.lang.String preScreen

The value of the "preScreen" applet's parameter.

postScreen

private java.lang.String postScreen

The value of the "postScreen" applet's parameter.

player_controls

public boolean player_controls

True if applet's control panel should be showed.

float_controls

public boolean float_controls

True if applet's control panel should be showed only after rolloving above the movie screen.

show_controls

public boolean show_controls

True if applet's control panel is showed (has the meaning only if float_controls = true).

linux_platform

private boolean linux_platform

True, if the current os is Linux.

window_x

private int window_x

The width of the applet's movie screen.

window_y

private int window_y

The height of the applet's movie screen.

current_volume

private float current_volume

The value of the current volume.

firstLoop

private boolean firstLoop

True if the applet should load the movie into the buffer, false if the movie already in the buffer.

playbackLoop

public boolean playbackLoop

True if the applet should restart the playing after the playback is finished.

rewinded

private boolean rewinded

True if the applet is rewinding the movie (tries to restart the playback from the begin after it is finished).

readyToPlay

private boolean readyToPlay

True if the applet is ready to play the movie's first frame.

audioEnabled

private boolean audioEnabled

The state of the audio parameter of the applet

new_filename

private java.lang.String new_filename

The file name of the movie which is used in the mediaframe_load javascript function

correctLicense

private boolean correctLicense

True if the player is used with the correct license key.

licenseVerified

private boolean licenseVerified

True if the license is already verified.

video_license

private boolean video_license

True if the license is stored in the video file.

source_url

private java.net.URL source_url

The URL address of the movie file.

saveScript

private java.lang.String saveScript

The name of the script for the 'Save video as...' functionality

saveVideoEnabled

private boolean saveVideoEnabled

True if the 'Save video as...' functionality is enabled

mpeg_stream

private io_tool mpeg_stream

The stream with only video-frames.

audio_stream

private io_tool audio_stream

The stream with only audio-frames.

input_reader

private MPEG_Reader input_reader

The reader of the movie stream, contains both streams audio and video.

video_decoder

private MPEG_video video_decoder

The video decoder.

audio_decoder

private Player audio_decoder

The audio player/decoder.

detect_location

private java.lang.String detect_location

The location of the directory where the xx.detect.speed files are placed.

movieScreen

public MovieScreen movieScreen

The panel on which the movie is shown.

lockedInfo

private java.lang.String lockedInfo

The url of a web page with the description of the MEDIAFRAME LOCKED error.

detected_speed

public int detected_speed

Current internet connection bandwidth value (index for tables).

See Also:

file_speeds, integer_speeds

file_speeds

public java.lang.String[] file_speeds

Parameter names for the movie files that depend from the bandwidth value.

integer_speeds

public final int[] integer_speeds

Possible bandwidth values supported by the applet.

buffered

public boolean buffered

True if the buffering of the movie file has been finished.

initialized

private boolean initialized

True if the set_dim() method was called by video_decoder.

key

private java.lang.String key

The license key value

Constructor Detail

MPEG1

public MPEG1()

Constructs the applet's object.

Method Detail

detectConnectionSpeed

private final java.lang.String detectConnectionSpeed()

Detects the speed of the internet connection.

Returns:

the name of applet's parameter with a movie file for the detected bandwidth value.

Throws:

java.lang.Exception - raises if an error occurs.

actionPerformed

public void actionPerformed(java.awt.event.ActionEvent event)

This method is invoked when user selects the item of applet's popup menu.

Specified by:

actionPerformed in interface java.awt.event.ActionListener

Parameters:

event - event's data.

open_url

private boolean open_url()

Opens a movie file or a zip archive with a movie file for downloading and buffering. If necessary detects the internet connection bandwidth and chooses the right movie file.

Returns:

true if the file has been opened successfully.

init

public void init()

Inits the applet. Gets all values of applet's parameters, inits applet's control panel and downloads startup and end images.

Overrides:

init in class java.applet.Applet

getImageFiles

private java.awt.Image[] getImageFiles(java.lang.String fileName,
                                       java.lang.String fileRange)

Gets the image files using the base filename and the fileRange parameters. f.e. filename = preimage.gif, fileRange = 1-4, preimage1.gif ... preimage4.gif images should be downloaded. If the fileRange == null or incorrect value, the image with the fileName should be downloaded.

Parameters:

fileName - the base filename.

fileRange - the range of the files.

Returns:

the array of images that have been loaded.

start

public void start()

The method "start()" opens up the MPEG resource and produces and starts the "MPEG_Reader" thread. Creates both video and audio stream, audio and video decoder.

Overrides:

start in class java.applet.Applet

stop

public void stop()

Stop the whole player.

Overrides:

stop in class java.applet.Applet

get_filename

public java.lang.String get_filename()

Gets the filename of the video file.

Returns:

the filename of the video file.

get_video_size

public int get_video_size()

Gets the length of the video file in bytes.

Returns:

the length of the video file.

get_video_length

public int get_video_length()

Stub for method that gets the length of the movie file in milliseconds.

Returns:

-1.

get_audio_state

public boolean get_audio_state()

Returns the mute value of the audio player.

Returns:

the mute value of the audio player.

get_errorcode

public int get_errorcode()

Returns the code of last error.

Returns:

the code of last error.

get_mf_state

public java.lang.String get_mf_state()

Returns the state of the player (buffering/ready/playing/paused/finished/error).

Returns:

the state of the player (buffering/ready/playing/paused/finished/error).

destroy

public void destroy()

Destroys the player.

Overrides:

destroy in class java.applet.Applet

playerplay

public void playerplay()

Starts the movie playback.

playerEndBuffer

public void playerEndBuffer(MPEG_Reader reader)

Is invoked after buffer is filled enough to start the movie playback (when the size of the buffered data equals or greater than the value specified by the "pre_buffer" applet's parameter).

Parameters:

reader - the MPEG_Reader object ("MPEG_Reader" thread owner).

startRebuffering

public void startRebuffering(MPEG_Reader reader)

Starts the "rebuffering" of the player.

Parameters:

reader - the reader thread.

endRebuffering

public void endRebuffering(MPEG_Reader reader)

Ends the "rebuffering" of the player.

Parameters:

reader - the reader thread.

printBufferingPercent

public void printBufferingPercent(MPEG_Reader reader,
                                  int percent)

Prints the "buffering" percent.

Parameters:

reader - the MPEG_Reader object ("MPEG_Reader" thread owner).

percent - the "buffering" percent value.

playerpause

public void playerpause()

Pauses the movie playback.

playerStop

public void playerStop()

Stops the movie playback.

playerEnd

public void playerEnd(MPEG_video video)

Is invoked after the movie playback is finished.

Parameters:

video - the MPEG_Reader object ("MPEG_Reader" thread owner).

wait_rewind

private void wait_rewind()

Waits until the rewind action is finished.

playerlooprewind

private void playerlooprewind()

Rewinds the player to startup state after the movie playback is finished. This method could be invoked only if playbackLoop = true.

playerrewind

public void playerrewind()

Rewinds the player to the startup state.

setMuteItemState

private void setMuteItemState(boolean mute)

Sets the "mute" menu item state to 'On' or 'Off'

Parameters:

mute - the mute value.

playersetmute

public void playersetmute(boolean mute)

Enable or disable speaker of the player.

Parameters:

mute - mute value (true - disable sound, false - enable sound).

mediaframe_load

public void mediaframe_load(java.lang.String fileName)

Loads the new movie into the video player box.

Parameters:

fileName - the movie file name.

get_connection_speed

public int get_connection_speed()

Gets the current connection speed.

Returns:

the current connection speed.

get_volume

public int get_volume()

Gets the current volume as an interger value (between 1>10).

Returns:

the current volume as an interger value (between 1>10).

get_volume

public int get_volume(java.lang.String percent)

If the percent equals '%' gets the current volume as a percent value (between 0..100) otherwise returns the volume as an interger value (between 1>10).

Parameters:

percent - the type of the requested value (equals '%' for the percent type).

Returns:

the current volume as a percent or an integer value.

playersetvolume

public void playersetvolume(java.lang.String sVolume)

Sets the volume level of the player. Accepts either an interger (between 1>10) or a percent (x%) value.

Parameters:

sVolume - the volume level.

parseVolume

private float parseVolume(java.lang.String sVolume)

Parses the volume level and returns it's float representation.

Parameters:

sVolume - the volume level in percent (100%..0%) or integer (10..1) form.

Returns:

the float value of the volume in the range 1..0.

isSoundEnabled

public boolean isSoundEnabled()

Gets the state of the audio player.

Returns:

true if the audio player is able to play the sound.

set_dim

public void set_dim(int width,
                    int height,
                    int o_width,
                    int o_height)

This method is necessary because the scanner must have the possibility to resize the applet and (possibly) the frame once he has recognized the dimensions of the MPEG frames. This method is called by the "MPEG_Reader".

Parameters:

width - the width in MPEG stream.

height - the height in MPEG stream.

o_width - the original width in MPEG stream.

o_height - the original height in MPEG stream.

set_Pixels

public void set_Pixels(int[][] Pixels,
                       int f_idx,
                       int f_type,
                       long pts,
                       int Pic_rate)
                throws java.lang.InterruptedException

The method "set_Pixels" expects the pixel data, the type and number of the next frame in display order to change the pixel values of the next image. It determins the number of the next frame in display order (which differes from coding order) and passes it to the MovieScreen by means of the "Dispatcher".

Parameters:

Pixels - the array of pixels as YUV values.

f_idx - the frame number in the movie.

f_type - the type of the frame.

pts - the time in milliseconds that this frame is to be displayed.

Pic_rate - the frame rate code.

Throws:

java.lang.InterruptedException - if another process interrupts this thread.

update

public void update(java.awt.Graphics g)

Stub, overwrites the "update()" method of Applet (does nothing).

Overrides:

update in class java.awt.Container

Parameters:

g - the graphics context to paint.

getAudioPlayer

public Player getAudioPlayer()

Gets the audio player/decoder object.

Returns:

the audio player/decoder object.

mousePressed

public void mousePressed(java.awt.event.MouseEvent e)

Invoked when a mouse button has been pressed on the applet's movie screen.

Specified by:

mousePressed in interface java.awt.event.MouseListener

Parameters:

e - the event's data.

mouseReleased

public void mouseReleased(java.awt.event.MouseEvent e)

Invoked when a mouse button has been released from the applet's movie screen.

Specified by:

mouseReleased in interface java.awt.event.MouseListener

Parameters:

e - the event's data.

mouseClicked

public void mouseClicked(java.awt.event.MouseEvent e)

Invoked when the mouse clicks on the applet's movie screen.

Specified by:

mouseClicked in interface java.awt.event.MouseListener

Parameters:

e - the event's data.

mouseEntered

public void mouseEntered(java.awt.event.MouseEvent e)

Invoked when the mouse enters the applet's movie screen area.

Specified by:

mouseEntered in interface java.awt.event.MouseListener

Parameters:

e - the event's data.

mouseExited

public void mouseExited(java.awt.event.MouseEvent e)

Invoked when the mouse exits the applet's movie screen area.

Specified by:

mouseExited in interface java.awt.event.MouseListener

Parameters:

e - the event's data.

openTarget

private void openTarget()

Opens an address url in the target ("self", "blank", "top", etc) window.

getZipStream

private java.io.InputStream getZipStream(java.io.InputStream aIs)
                                  throws java.lang.Exception

Opens and returns the InputStream for a zip-compressed file.

Parameters:

aIs - the InputStream of the zip file.

Returns:

the InputStream of the zip-compressed file.

Throws:

java.lang.Exception - if an I/O error occurs.

isCorrectLicenseKey

private boolean isCorrectLicenseKey(java.lang.String license_key)

Verifies the license (license_key parameter) of the video player.

Returns:

true if the license is correct.

getNextRecord

private long getNextRecord(java.lang.String inputKey)

Decrypts the one encrypted long value.

Parameters:

inputKey - input key value (null if an old value should be used).

Returns:

decrypted value.

decryptBlock

private long decryptBlock()

Decrypts one encrypted short value.

Returns:

decrypted value.

decrypt

private long decrypt(long m,
                     long d,
                     long n)

Decrypts the long value using the private key D and the public key N.

Parameters:

m - the long value that must be decrypted.

d - the private key D.

n - the public key N.

Returns:

decrypted value.

getCRC32

private long getCRC32(java.lang.String str)

Gets the crc32 checksum of the input string.

Parameters:

str - the input string.

Returns:

the crc32 checksum.

isCorrectLicense

public boolean isCorrectLicense()

Returns true if the license is correct.

Returns:

true if the license is correct.

isLicenseVerified

public boolean isLicenseVerified()

Returns true if the license is already verified.

Returns:

true if the license is already verified.

getEmbeddedImage

private java.awt.Image getEmbeddedImage(java.lang.String image_path)

Gets the image that embedded into applet's jar file by it's path.

Parameters:

image_path - the path to the resource image.

Returns:

the image which was loaded.