Marsyas  0.6.0-alpha
/usr/src/RPM/BUILD/marsyas-0.6.0/src/marsyas/marsystems/Energy.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 "Energy.h"
00020 #include "../common_source.h"
00021 
00022 using std::ostringstream;
00023 using namespace Marsyas;
00024 
00025 Energy::Energy(mrs_string name):MarSystem("Energy",name)
00026 {
00027   addControls();
00028 }
00029 
00030 Energy::Energy(const Energy& a) : MarSystem(a)
00031 {
00032 }
00033 
00034 Energy::~Energy()
00035 {
00036 }
00037 
00038 
00039 MarSystem*
00040 Energy::clone() const
00041 {
00042   return new Energy(*this);
00043 }
00044 
00045 void
00046 Energy::addControls()
00047 {
00048 
00049 }
00050 
00051 void
00052 Energy::myUpdate(MarControlPtr sender)
00053 {
00054   (void) sender;  //suppress warning of unused parameter(s)
00055   MRSDIAG("Energy.cpp - Energy:myUpdate");
00056 
00057   setctrl("mrs_natural/onSamples", 1);
00058   setctrl("mrs_natural/onObservations",
00059           getctrl("mrs_natural/inObservations"));
00060   setctrl("mrs_real/osrate",
00061           getctrl("mrs_real/israte"));
00062   // Add prefix to the observation names.
00063   mrs_string inObsNames = ctrl_inObsNames_->to<mrs_string>();
00064   ctrl_onObsNames_->setValue(obsNamesAddPrefix(inObsNames, "Power_"), NOUPDATE);
00065 }
00066 
00067 
00068 void
00069 Energy::myProcess(realvec& in, realvec& out)
00070 {
00071   mrs_natural t,o;
00072   //checkFlow(in,out);
00073 
00074   out.setval(0.0);
00075   for (o=0; o < inObservations_; o++)
00076   {
00077     mrs_real tmp=0;
00078     for (t = 0; t < inSamples_; t++)
00079     {
00080       tmp+= in(o,t)*in(o,t);
00081     }
00082     out(o,0) = tmp;
00083   }
00084 }
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