CLAM-Development
1.1
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00001 /* 00002 * Copyright (c) 2001-2004 MUSIC TECHNOLOGY GROUP (MTG) 00003 * UNIVERSITAT POMPEU FABRA 00004 * 00005 * 00006 * This program is free software; you can redistribute it and/or modify 00007 * it under the terms of the GNU General Public License as published by 00008 * the Free Software Foundation; either version 2 of the License, or 00009 * (at your option) any later version. 00010 * 00011 * This program is distributed in the hope that it will be useful, 00012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00014 * GNU General Public License for more details. 00015 * 00016 * You should have received a copy of the GNU General Public License 00017 * along with this program; if not, write to the Free Software 00018 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00019 * 00020 */ 00021 00022 #include "SMSSpectralShapeShift.hxx" 00023 #include "ProcessingFactory.hxx" 00024 00025 namespace CLAM 00026 { 00027 00028 namespace Hidden 00029 { 00030 static const char * metadata[] = { 00031 "key", "SMSSpectralShapeShift", 00032 "category", "SMS Transformations", 00033 "description", "SMSSpectralShapeShift", 00034 0 00035 }; 00036 static FactoryRegistrator<ProcessingFactory, SMSSpectralShapeShift> reg = metadata; 00037 } 00038 00039 bool SMSSpectralShapeShift::Do(const SpectralPeakArray& 00040 inPeaks,SpectralPeakArray& outPeaks) 00041 { 00042 if (!mConfig.GetPreserveOuts()) 00043 { 00044 outPeaks = inPeaks; //TODO big cludge for streaming 00045 } 00046 00047 mSpectralEnvelope.SetSpectralRange(mSpectralRange); 00048 00049 if (!mSpectralEnvelopeExtract.Do(inPeaks,mSpectralEnvelope)) 00050 return true; // Not enough peaks for an envelope 00051 00052 TData amount = mSteps.GetLastValue(); 00053 00054 //Shift spectral shape 00055 BPF& magBPF=mSpectralEnvelope.GetMagBPF(); 00056 int nPoints=magBPF.Size(); 00057 for(int i=0;i<nPoints;i++) 00058 { 00059 magBPF.SetXValue(i, magBPF.GetXValue(i)+amount); 00060 } 00061 magBPF.UpdateSplineTable(); 00062 //Apply new spectral shape 00063 mSpectralEnvelopeApply.Do(inPeaks,mSpectralEnvelope,outPeaks); 00064 return true; 00065 } 00066 00067 00068 } 00069