Marsyas  0.6.0-alpha
/usr/src/RPM/BUILD/marsyas-0.6.0/src/marsyas/marsystems/NoiseSource.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 "NoiseSource.h"
00020 
00021 using std::ostringstream;
00022 using namespace Marsyas;
00023 
00024 NoiseSource::NoiseSource(mrs_string name):MarSystem("NoiseSource",name)
00025 {
00026   addControls();
00027 }
00028 
00029 NoiseSource::~NoiseSource()
00030 {
00031 }
00032 
00033 MarSystem*
00034 NoiseSource::clone() const
00035 {
00036   return new NoiseSource(*this);
00037 }
00038 
00039 void
00040 NoiseSource::addControls()
00041 {
00042 }
00043 
00044 
00045 
00046 void
00047 NoiseSource::myUpdate(MarControlPtr sender)
00048 {
00049   MarSystem::myUpdate(sender);
00050 
00051 }
00052 
00053 void
00054 NoiseSource::myProcess(realvec &in, realvec &out)
00055 {
00056   (void) in;
00057   for (mrs_natural t=0; t < onSamples_; ++t)
00058       for (mrs_natural o=0; o < onObservations_; ++o)
00059         out(o,t) = (mrs_real)(2.0 * rand() / (RAND_MAX + 1.0) )-1;
00060 }
00061 
00062 
00063 
00064 
00065