SMSResidualGain.cxx

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/*
 * Copyright (c) 2001-2004 MUSIC TECHNOLOGY GROUP (MTG)
 *                         UNIVERSITAT POMPEU FABRA
 *
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#include "SMSResidualGain.hxx"
#include "ProcessingFactory.hxx"


namespace CLAM
{

namespace Hidden
{       
        static const char * metadata[] = {
                "key", "SMSResidualGain",
                "category", "SMS Transformations",
                "description", "SMSResidualGain",
                0
        };
        static FactoryRegistrator<ProcessingFactory, SMSResidualGain> reg = metadata;
}


bool SMSResidualGain::Do(const Spectrum& in, Spectrum& out)
{
        out = in; // TODO big cludge for streaming 
        TSize spectrumSize = in.GetSize();
        if(in.GetScale()==EScale::eLinear)
        {
                TData amount = Lin(mGain.GetLastValue());
                for(int i=0;i<spectrumSize;i++)
                {
                        out.SetMag(i,in.GetMag(i)*amount);
                }
        }
        else
        {
                TData amount = mGain.GetLastValue();
                for(int i=0;i<spectrumSize;i++)
                {
                        out.SetMag(i,in.GetMag(i)+amount);
                }
        }
        return true;
}

}