Marsyas  0.6.0-alpha
/usr/src/RPM/BUILD/marsyas-0.6.0/src/marsyas/marsystems/PeakPeriods2BPM.cpp
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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 #include "PeakPeriods2BPM.h"
00020 #include "../common_source.h"
00021 
00022 
00023 using std::ostringstream;
00024 using namespace Marsyas;
00025 
00026 PeakPeriods2BPM::PeakPeriods2BPM(mrs_string name):MarSystem("PeakPeriods2BPM",name)
00027 {
00028   addControls();
00029 }
00030 
00031 
00032 PeakPeriods2BPM::~PeakPeriods2BPM()
00033 {
00034 }
00035 
00036 
00037 void
00038 PeakPeriods2BPM::addControls()
00039 {
00040   addctrl("mrs_real/factor", 1.0);
00041 }
00042 
00043 MarSystem*
00044 PeakPeriods2BPM::clone() const
00045 {
00046   return new PeakPeriods2BPM(*this);
00047 }
00048 
00049 void
00050 PeakPeriods2BPM::myUpdate(MarControlPtr sender)
00051 {
00052   MRSDIAG("PeakPeriods2BPM.cpp - PeakPeriods2BPM:myUpdate");
00053 
00054 //   setctrl("mrs_natural/onSamples", getctrl("mrs_natural/inSamples"));
00055 //   setctrl("mrs_natural/onObservations", getctrl("mrs_natural/inObservations"));
00056 //   setctrl("mrs_real/osrate", getctrl("mrs_real/israte"));
00057   MarSystem::myUpdate(sender);
00058 
00059   srate_ = getctrl("mrs_real/israte")->to<mrs_real>();
00060 
00061 }
00062 
00063 void
00064 PeakPeriods2BPM::myProcess(realvec& in, realvec& out)
00065 {
00066   mrs_natural t,o;
00067   //checkFlow(in,out);
00068   factor_ = getctrl("mrs_real/factor")->to<mrs_real>();
00069   factor_ = 4.0;
00070 
00071   for (o=0; o < inObservations_; o++)
00072     for (t = 0; t < inSamples_/2; t++)
00073     {
00074       out(o,2*t) = in(o,2*t);
00075       // out(o,2*t+1) = (mrs_real)(srate_ * 60.0 / in(o, 2*t+1));
00076       out(o,2*t+1) = (mrs_real)(srate_ * 60.0 * factor_ / in(o, 2*t+1));
00077 //          cout << in(o,2*t+1) << "-" << out(o,2*t+1) << endl;
00078     }
00079 
00080 }
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