SpectralRingModulation.hxx

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00001 
00002 /*
00003  * Copyright (c) 2001-2004 MUSIC TECHNOLOGY GROUP (MTG)
00004  *                         UNIVERSITAT POMPEU FABRA
00005  *
00006  *
00007  * This program is free software; you can redistribute it and/or modify
00008  * it under the terms of the GNU General Public License as published by
00009  * the Free Software Foundation; either version 2 of the License, or
00010  * (at your option) any later version.
00011  *
00012  * This program is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU General Public License
00018  * along with this program; if not, write to the Free Software
00019  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00020  *
00021  */
00022 
00023 
00024 #ifndef _SpectralRingModulation_
00025 #define _SpectralRingModulation_
00026 
00027 #include "InPort.hxx"
00028 #include "OutPort.hxx"
00029 #include "InControl.hxx"
00030 #include "Frame.hxx"
00031 #include "FrameTransformation.hxx"
00032 #include "FrameTransformationConfig.hxx"
00033 #include "SimpleOscillator.hxx"
00034 
00035 namespace CLAM{
00036 
00037         class SpectralRingModulation: public FrameTransformationTmpl<Spectrum>
00038         {
00039                 InPort<Spectrum> mIn;
00040                 OutPort<Spectrum> mOut;
00041                 
00042                 FloatInControl mFreqCtl;
00043                 FloatInControl mWidthCtl;
00044         public:
00045                 const char* GetClassName() const
00046                 {
00047                         return "SpectralRingMod";
00048                 }
00049 
00050                 SpectralRingModulation() 
00051                         : 
00052                         mIn("In Spectrum", this), 
00053                         mOut("Out Spectrum", this),
00054                         mFreqCtl("Freq", this),
00055                         mWidthCtl("Width", this)
00056                 {
00057                         Configure( FrameTransformationConfig() );
00058                         SimpleOscillatorConfig cfg;
00059                         cfg.SetFrequency(200);
00060                         cfg.SetAmplitude(1);
00061                         mOscillator.Configure(cfg);
00062                 }
00063 
00064                 ~SpectralRingModulation() {}    
00065                 virtual bool InitControls()
00066                 { 
00067                                 mFreqCtl.DoControl(1000.);
00068                                 mWidthCtl.DoControl(1.);
00069                                 return true;
00070                 }
00071                 
00072                 bool Do(const Frame& in, Frame& out)
00073                 {
00074                         return Do(in.GetSpectrum(), 
00075                                   out.GetSpectrum());
00076                 }
00077 
00078                 bool Do(const Spectrum& in, Spectrum& out);
00079 
00080                 bool Do()
00081                 {
00082                         bool result = Do(mIn.GetData(), mOut.GetData()); 
00083                         mIn.Consume();
00084                         mOut.Produce();
00085                         return result;
00086                 }
00087         private:
00088                 SimpleOscillator mOscillator;
00089         };              
00090 };//namespace CLAM
00091 
00092 #endif // _SpectralRingModulation_
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