Marsyas  0.6.0-alpha
/usr/src/RPM/BUILD/marsyas-0.6.0/src/marsyas/marsystems/Yin.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_YIN_H
00020 #define MARSYAS_YIN_H
00021 
00022 #include <marsyas/system/MarSystem.h>
00023 
00024 namespace Marsyas
00025 {
00052 class Yin: public MarSystem
00053 {
00054 private:
00055   void addControls();
00056   void myUpdate(MarControlPtr sender);
00057 
00058   MarControlPtr ctrl_tolerance_;
00059   MarControlPtr ctrl_frequency_min_;
00060   MarControlPtr ctrl_frequency_max_;
00061 
00062   double aubio_quadfrac(double s0, double s1, double s2, double pf);
00063   double vec_quadint_min(realvec * x,unsigned int pos, unsigned int span);
00064   unsigned int vec_min_elem(realvec *s);
00065   mrs_realvec yin_buffer_realvec_;
00066 
00067 public:
00068   Yin(std::string name);
00069   Yin(const Yin& a);
00070   ~Yin();
00071   MarSystem* clone() const;
00072 
00073   void myProcess(realvec& in, realvec& out);
00074 };
00075 
00076 }
00077 
00078 #endif
00079