/* For Copyright and License see LICENSE.txt and COPYING.txt in the root directory */
package com.nerdscentral.audio.combine;
import com.nerdscentral.audio.core.SFConstants;
import com.nerdscentral.audio.core.SFData;
import com.nerdscentral.audio.core.SFSignal;
import com.nerdscentral.sython.Caster;
import com.nerdscentral.sython.SFMaths;
import com.nerdscentral.sython.SFPL_Operator;
import com.nerdscentral.sython.SFPL_RuntimeException;
public class SF_RTrim implements SFPL_Operator
{
/**
*
*/
private static final long serialVersionUID = 1L;
@Override
public Object Interpret(final Object input) throws SFPL_RuntimeException
{
/*
* Trims silence (actually noise < NOISE_FLOOR) off the right (trailing end) of a signal.
*/
SFSignal dataIn = Caster.makeSFSignal(input);
int start = 0;
int len = dataIn.getLength();
int end = len - 1;
for (; end > start; --end)
{
if (SFMaths.abs(dataIn.getSample(end)) > SFConstants.NOISE_FLOOR) break;
}
++end;
SFSignal out = SFData.build(end - start);
for (int i = start; i < end; ++i)
{
out.setSample(i - start, dataIn.getSample(i));
}
return out;
}
@Override
public String Word()
{
return Messages.getString("SF_RTrim.0"); //$NON-NLS-1$
}
}