Marsyas  0.6.0-alpha
/usr/src/RPM/BUILD/marsyas-0.6.0/src/marsyas/marsystems/Deinterleave.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 "Deinterleave.h"
00020 
00021 using std::ostringstream;
00022 using namespace Marsyas;
00023 
00024 Deinterleave::Deinterleave(mrs_string name):MarSystem("Deinterleave", name)
00025 {
00026 
00027   pat_ = new PatchMatrix("pat");
00028 
00029   outindex_.stretch(inObservations_);
00030   inindex_.stretch(inObservations_);
00031   weights_.stretch(inObservations_,inObservations_);
00032 
00033   addControls();
00034 }
00035 
00036 Deinterleave::Deinterleave(const Deinterleave& a) : MarSystem(a)
00037 {
00038   // For any MarControlPtr in a MarSystem
00039   // it is necessary to perform this getctrl
00040   // in the copy constructor in order for cloning to work
00041   ctrl_numSets_ = getctrl("mrs_natural/numSets");
00042 
00043   pat_ = new PatchMatrix("pat");
00044 
00045   outindex_.stretch(inObservations_);
00046   inindex_.stretch(inObservations_);
00047   weights_.stretch(inObservations_,inObservations_);
00048 }
00049 
00050 Deinterleave::~Deinterleave()
00051 {
00052   delete pat_;
00053 }
00054 
00055 MarSystem*
00056 Deinterleave::clone() const
00057 {
00058   return new Deinterleave(*this);
00059 }
00060 
00061 void
00062 Deinterleave::addControls()
00063 {
00064   //Add specific controls needed by this MarSystem.
00065   addctrl("mrs_natural/numSets", 2, ctrl_numSets_);
00066   //setControlState("mrs_realvec/consts",true);
00067   setControlState("mrs_natural/numSets",true);
00068 }
00069 
00070 void
00071 Deinterleave::myUpdate(MarControlPtr sender)
00072 {
00073 
00074   MarSystem::myUpdate(sender);
00075 
00076   mrs_natural numSets = ctrl_numSets_->to<mrs_natural>();
00077 
00078   outindex_.stretch(inObservations_);
00079   inindex_.stretch(inObservations_);
00080   weights_.stretch(inObservations_,inObservations_);
00081 
00082 
00083   mrs_natural rest=inObservations_%numSets;
00084   mrs_natural part=inObservations_/numSets;
00085   mrs_natural count=0;
00086 
00087   for (mrs_natural t = 0; t < rest; t++)
00088   {
00089     for (mrs_natural n = 0; n <1+part ; n++)
00090     {
00091       //get Reordering indices for all rows for which there is a rest (they get one output more)
00092       outindex_(count)=n+part*t;
00093       inindex_(count)=numSets*n+t;
00094       count++;
00095     }
00096   }
00097   for (mrs_natural t = rest; t < numSets; t++)
00098   {
00099     for (mrs_natural n = 0; n < part; n++)
00100     {
00101       //get Reordering indices for all remaining rows
00102       outindex_(count)=n+rest+part*t;
00103       inindex_(count)=numSets*n+t;
00104       count++;
00105     }
00106   }
00107 
00108   //Weights deinterleave n
00109   for(mrs_natural i=0; i<inindex_.getSize(); ++i)
00110   {
00111     weights_((mrs_natural)(outindex_(i)),(mrs_natural)(inindex_(i)))=1.0;
00112   }
00113 
00114   pat_->setctrl("mrs_realvec/weights",weights_);
00115 
00116 
00117 }
00118 
00119 
00120 void
00121 Deinterleave::myProcess(realvec& in, realvec& out)
00122 {
00123   //Weights deinterleave n
00124 
00125   pat_->process(in,out);
00126 
00127 }
00128 
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00135