Marsyas  0.6.0-alpha
/usr/src/RPM/BUILD/marsyas-0.6.0/src/marsyas/marsystems/Spectrum.h
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00001 /*
00002 ** Copyright (C) 1998-2006 George Tzanetakis <gtzan@cs.uvic.ca>
00003 **
00004 ** This program is free software; you can redistribute it and/or modify
00005 ** it under the terms of the GNU General Public License as published by
00006 ** the Free Software Foundation; either version 2 of the License, or
00007 ** (at your option) any later version.
00008 **
00009 ** This program is distributed in the hope that it will be useful,
00010 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
00011 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012 ** GNU General Public License for more details.
00013 **
00014 ** You should have received a copy of the GNU General Public License
00015 ** along with this program; if not, write to the Free Software
00016 ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
00017 */
00018 
00019 #ifndef MARSYAS_SPECTRUM_H
00020 #define MARSYAS_SPECTRUM_H
00021 
00022 #include <marsyas/system/MarSystem.h>
00023 #include <marsyas/fft.h>
00024 
00025 namespace Marsyas
00026 {
00050 class Spectrum: public MarSystem
00051 {
00052 private:
00053   fft myfft_;
00054 
00055   mrs_real cutoff_;
00056   mrs_real lowcutoff_;
00057   mrs_real re_,im_;
00058   mrs_natural ponObservations_;
00059 
00060   MarControlPtr ctrl_cutoff_;
00061   MarControlPtr ctrl_lowcutoff_;
00062 
00063   bool correct_input_format_;
00064 
00065   void checkInputFormat();
00066   void addControls();
00067   void myUpdate(MarControlPtr sender);
00068 
00069 public:
00070   Spectrum(std::string name);
00071   Spectrum(const Spectrum&);
00072   ~Spectrum();
00073   MarSystem* clone() const;
00074 
00075   void myProcess(realvec& in, realvec& out);
00076 };
00077 
00078 }//namespace Marsyas
00079 
00080 #endif
00081 
00082