Marsyas  0.6.0-alpha
/usr/src/RPM/BUILD/marsyas-0.6.0/src/marsyas/marsystems/FullWaveRectifier.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 "FullWaveRectifier.h"
00020 
00021 using std::ostringstream;
00022 using namespace Marsyas;
00023 
00024 FullWaveRectifier::FullWaveRectifier(mrs_string name) : MarSystem("FullWaveRectifier",name)
00025 {
00026 }
00027 
00028 
00029 FullWaveRectifier::~FullWaveRectifier()
00030 {
00031 }
00032 
00033 MarSystem*
00034 FullWaveRectifier::clone() const
00035 {
00036   return new FullWaveRectifier(*this);
00037 }
00038 
00039 void
00040 FullWaveRectifier::myUpdate(MarControlPtr sender)
00041 {
00043   MarSystem::myUpdate(sender);
00044 }
00045 
00046 void
00047 FullWaveRectifier::myProcess(realvec& in, realvec& out)
00048 {
00049   mrs_natural o,t;
00050   // Copy the absolute values of the samples from the input to the output.
00051   for (o = 0; o < inObservations_; o++)
00052   {
00053     for (t = 0; t < inSamples_; t++)
00054     {
00055       out(o, t) = (in(o, t) > 0) ? in(o, t) : -in(o, t);
00056     }
00057   }
00058 }