public override Data getData()
{
Data data;
if (this.outputQueue.isEmpty())
{
data = this.getPredecessor().getData();
if (data != null)
{
if (data is DoubleData)
{
DoubleData doubleData = (DoubleData)data;
if (this.currentFirstSampleNumber == -1L)
{
this.currentFirstSampleNumber = doubleData.getFirstSampleNumber();
}
this.createWindow(doubleData.getSampleRate());
this.process(doubleData);
}
else
{
if (data is DataStartSignal)
{
DataStartSignal dataStartSignal = (DataStartSignal)data;
this.createWindow(dataStartSignal.getSampleRate());
Map props = dataStartSignal.getProps();
props.put("windowSize", Integer.valueOf(this.windowShift));
props.put("windowShift", Integer.valueOf(this.cosineWindow.Length));
this.currentFirstSampleNumber = -1L;
}
else if (data is SpeechStartSignal)
{
this.currentFirstSampleNumber = -1L;
}
else if (data is DataEndSignal || data is SpeechEndSignal)
{
this.processUtteranceEnd();
}
this.outputQueue.add(data);
}
}
}
if (this.outputQueue.isEmpty())
{
return(null);
}
data = (Data)this.outputQueue.remove(0);
if (data is DoubleData && !RaisedCosineWindower.assertionsDisabled && ((DoubleData)data).getValues().Length != this.cosineWindow.Length)
{
throw new AssertionError();
}
return(data);
}
/** Handles the first element in a feature-stream.
* /// @param dataStartSignal*/
protected void handleDataStartSignal(DataStartSignal dataStartSignal)
{
Dictionary <String, Object> dataProps = dataStartSignal.getProps();
useSpeechSignals = dataProps.ContainsKey(DataStartSignal.SPEECH_TAGGED_FEATURE_STREAM) && (Boolean)dataProps[DataStartSignal.SPEECH_TAGGED_FEATURE_STREAM];
}
