public class AudioWaveform extends VisualisationImpl<SampleBuffer>
SampleBuffer class
to store the samples to be displayed. It will display multi-channel signals
as given by the audio format of the SampleBuffer.
A method for accepting sample chunks is implemented so that a "live" display of audio waveform can be displayed.
If you prefer to display an overview of the complete audio of a resource,
use the AudioOverviewVisualisation.
JPanel.AccessibleJPanelJComponent.AccessibleJComponentContainer.AccessibleAWTContainerComponent.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategyclearBeforeDraw, data, visImagelistenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOWaccessibleContext, BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENTABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH| Constructor and Description |
|---|
AudioWaveform(int w,
int h)
Create an audio waveform display of the given width and height
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AudioWaveform(VisualisationImpl<?> v)
Create an audio waveform that overlays the given visualisation.
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| Modifier and Type | Method and Description |
|---|---|
MBFImage |
drawWaveform(SampleBuffer sb)
Draw the given sample chunk into an image and returns that image.
|
float |
getDecayAmount()
Get the amount of decay in use
|
float |
getMaximum()
Get the maximum value in use
|
boolean |
isDecay()
Returns whether decay is set
|
void |
setAutoFit(boolean tf)
Whether to auto fit the x-axis
|
void |
setAutoScale(boolean tf)
Whether to auto fit the y-axis
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void |
setColour(Float[] colour)
Set the colour to draw the signal
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void |
setData(double[] samples)
If the samples are represented as a set of doubles, you can set them
here.
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void |
setData(double[] samples,
AudioFormat format)
Samples represented as a set of doubles.
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void |
setDecay(boolean decay)
Set whether decay is to be used
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void |
setDecayAmount(float decayAmount)
Set the amount of decay to use
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void |
setMaximum(float f)
Set the maximum value that the signal can achieve.
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void |
setXScale(float f)
Set the x-scale at which to draw the waveform.
|
void |
update()
Called to update the visualisation.
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addOverlay, componentHidden, componentMoved, componentResized, componentShown, getRequiredSize, getVisualisationImage, isAllowResize, newVisualisationAvailable, paint, removeOverlay, setAllowResize, setClearBeforeDraw, setData, setRequiredSize, showWindow, update, updateVis, updateVisgetAccessibleContext, getUI, getUIClassID, paramString, setUI, updateUIaddAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBaseline, getBaselineResizeBehavior, getBorder, getBounds, getClientProperty, getComponentGraphics, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getGraphics, getHeight, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPopupLocation, getPreferredSize, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, hide, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingOrigin, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paintBorder, paintChildren, paintComponent, paintImmediately, paintImmediately, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setComponentPopupMenu, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setEnabled, setFocusTraversalKeys, setFont, setForeground, setInheritsPopupMenu, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardActionadd, add, add, add, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, getMousePosition, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusCycleRoot, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setLayout, transferFocusDownCycle, validate, validateTreeaction, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, createVolatileImage, createVolatileImage, disableEvents, dispatchEvent, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCyclepublic AudioWaveform(int w, int h)
w - The width of the imageh - The height of the imagepublic AudioWaveform(VisualisationImpl<?> v)
v - The visualisation to overlaypublic MBFImage drawWaveform(SampleBuffer sb)
sb - The sample chunk to drawpublic void update()
visImage member to be available and of the correct size.
The method simply needs to draw the visualisation to this MBFImage.
You should wrap any drawing code in a synchronized block, synchronized on
the visImage - this stops the image being repainted to the screen half way
through drawing.
Update is called from the paint() method so should ideally not force a repaint() as this will call a continuous repaint loop.
update in class VisualisationImpl<SampleBuffer>VisualisationImpl.update()public void setData(double[] samples)
samples - The sample data.public void setData(double[] samples, AudioFormat format)
samples - The samples.format - The format of the samplespublic void setMaximum(float f)
f - The maximum that a signal can achieve.public float getMaximum()
public void setXScale(float f)
f - The scale at which to draw the waveform.public void setAutoFit(boolean tf)
tf - TRUE to auto-fit the x-axispublic void setAutoScale(boolean tf)
tf - TRUE to auto-fit the y-axispublic boolean isDecay()
public void setDecay(boolean decay)
decay - TRUE for decay, FALSE otherwisepublic float getDecayAmount()
public void setDecayAmount(float decayAmount)
decayAmount - the decay amount