Chris@26: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@26: 
Chris@42: /*
Chris@42:     Tipic
Chris@42: 
Chris@42:     Centre for Digital Music, Queen Mary, University of London.
Chris@42: 
Chris@42:     This program is free software; you can redistribute it and/or
Chris@42:     modify it under the terms of the GNU General Public License as
Chris@42:     published by the Free Software Foundation; either version 2 of the
Chris@42:     License, or (at your option) any later version.  See the file
Chris@42:     COPYING included with this distribution for more information.
Chris@42: */
Chris@42: 
Chris@26: #include "Chroma.h"
Chris@26: 
Chris@42: #include "maths/MathUtilities.h"
Chris@26: #include "LogCompress.h"
Chris@26: #include "OctaveFold.h"
Chris@26: #include "Resize.h"
Chris@26: 
Chris@26: #include <cmath>
Chris@26: #include <iostream>
Chris@26: 
Chris@26: using namespace std;
Chris@26: 
Chris@35: Chroma::Chroma(Parameters params) :
Chris@35:     m_params(params)
Chris@35: {
Chris@35: }
Chris@35: 
Chris@26: Chroma::~Chroma()
Chris@26: {
Chris@26: }
Chris@26: 
Chris@26: RealBlock
Chris@26: Chroma::process(const RealBlock &in)
Chris@26: {
Chris@26:     if (in.empty()) {
Chris@26: 	return in;
Chris@26:     }
Chris@26: 
Chris@26:     RealBlock out;
Chris@26: 
Chris@26:     for (RealColumn col: in) {
Chris@26: 
Chris@26: 	if (m_params.applyLogCompression) {
Chris@26:             col = LogCompress::process(col, m_params.logFactor, m_params.logAddTerm);
Chris@26: 	}
Chris@26: 
Chris@42:         out.push_back(MathUtilities::normaliseLp
Chris@26:                       (OctaveFold::process
Chris@26: 		       (Resize::process(col)),
Chris@26: 		       m_params.normP, m_params.normThresh));
Chris@26:     }        
Chris@26: 
Chris@26:     return out;
Chris@26: }
Chris@26: