/home/marsyas/marsyas/src/marsyas/Product.cpp

/*
** Copyright (C) 1998-2006 George Tzanetakis <gtzan@cs.uvic.ca>
**  
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
** 
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
** GNU General Public License for more details.
** 
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software 
** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/

#include "Product.h"

using std::ostringstream;
using namespace Marsyas;

Product::Product(mrs_string name):MarSystem("Product",name)
{
}


Product::~Product()
{
}

MarSystem* 
Product::clone() const 
{
  return new Product(*this);
}


void
Product::myUpdate(MarControlPtr sender)
{
    (void) sender;
    MRSDIAG("Product.cpp - Product:myUpdate");

    ctrl_onSamples_->setValue(ctrl_inSamples_, NOUPDATE);
    ctrl_onObservations_->setValue(1, NOUPDATE);
    ctrl_osrate_->setValue(ctrl_israte_, NOUPDATE);
    ctrl_onObsNames_->setValue(ctrl_inObsNames_, NOUPDATE);
}


void 
Product::myProcess(realvec& in, realvec& out)
{
    mrs_natural t,o;

  for (t = 0; t < inSamples_; t++)
    out(0,t) = 1;
  for (o=0; o < inObservations_; o++)
    for (t = 0; t < inSamples_; t++)
      {
                out(0,t) *= in(o,t);
      }
}

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