com.cleveroad.audiovisualization

Class DbmHandler<TData>

java.lang.Object

com.cleveroad.audiovisualization.DbmHandler<TData>

Direct Known Subclasses:

SpeechRecognizerDbmHandler, VisualizerDbmHandler

public abstract class DbmHandler<TData>
extends Object

Abstract class for converting your data to dBm values. When you're have new portion of data, call onDataReceived(Object) method.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DbmHandler.Factory

Constructor Summary

Constructors

Constructor and Description
DbmHandler()

Method Summary

Modifier and Type	Method and Description
protected void	calmDownAndStopRendering() Post empty values to renderer and stop rendering thread after waves calm down.
void	onDataReceived(TData data) Call this method when your data is available for conversion.
protected abstract void	onDataReceivedImpl(TData data, int layersCount, float[] dBmArray, float[] ampsArray) Implement your own data conversion.
void	onPause() Called after AudioVisualization.onPause() call.
void	onResume() Called after AudioVisualization.onResume() call.
void	release() Called after AudioVisualization.release() ()} call.
protected void	startRendering() Start rendering thread.
protected void	stopRendering() Stop rendering thread.

Methods inherited from class java.lang.Object

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

Constructor Detail

DbmHandler

public DbmHandler()

Method Detail

onDataReceived

public final void onDataReceived(TData data)

Call this method when your data is available for conversion.

Parameters:

data - any data

startRendering

protected final void startRendering()

Start rendering thread.

stopRendering

protected final void stopRendering()

Stop rendering thread.

calmDownAndStopRendering

protected final void calmDownAndStopRendering()

Post empty values to renderer and stop rendering thread after waves calm down.

onResume

public void onResume()

Called after AudioVisualization.onResume() call.

onPause

public void onPause()

Called after AudioVisualization.onPause() call.

release

public void release()

Called after AudioVisualization.release() ()} call.

onDataReceivedImpl

protected abstract void onDataReceivedImpl(TData data,
                                           int layersCount,
                                           float[] dBmArray,
                                           float[] ampsArray)

Implement your own data conversion.

Parameters:

data - any data

layersCount - layers count

dBmArray - array of normalized (in range [0..1]) dBm values that should be populated by you. Array size is equals to layersCount value.

ampsArray - array of amplitude values that should be populated by you. Array size is equals to layersCount value.

This values affect the appearance of bubbles. If new amplitude value is greater than previous value and normalized dBm value is greater than 0.25, bubbles will appear on screen. In case if amplitude is less than previous value, exponential smoothing (Holt - Winters) used for smoothing amplitude values.