Marsyas  0.6.0-alpha
/usr/src/RPM/BUILD/marsyas-0.6.0/src/marsyas/marsystems/RealvecSource.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 "RealvecSource.h"
00020 #include "../common_source.h"
00021 
00022 using namespace std;
00023 using namespace Marsyas;
00024 
00025 RealvecSource::RealvecSource(mrs_string name):MarSystem("RealvecSource",name)
00026 {
00027   count_= 0;
00028   addControls();
00029 }
00030 
00031 RealvecSource::RealvecSource(const RealvecSource& a):MarSystem(a)
00032 {
00033   count_ = 0;
00034   ctrl_data_ = getctrl("mrs_realvec/data");
00035 }
00036 
00037 
00038 RealvecSource::~RealvecSource()
00039 {
00040 }
00041 
00042 
00043 MarSystem*
00044 RealvecSource::clone() const
00045 {
00046   return new RealvecSource(*this);
00047 }
00048 
00049 void
00050 RealvecSource::addControls()
00051 {
00052   samplesToUse_ = (mrs_natural)MRS_DEFAULT_SLICE_NSAMPLES;
00053   addctrl("mrs_bool/done", false);
00054   setctrlState("mrs_bool/done", true);
00055   addctrl("mrs_realvec/data", realvec(), ctrl_data_);
00056   setctrlState("mrs_realvec/data", true);
00057   setctrlState("mrs_real/israte", true);
00058 }
00059 
00060 
00061 void
00062 RealvecSource::myUpdate(MarControlPtr sender)
00063 {
00064   (void)sender;
00065   MRSDIAG("RealvecSource.cpp - RealvecSource:myUpdate");
00066 
00067   inSamples_ = getctrl("mrs_natural/inSamples")->to<mrs_natural>();
00068   inObservations_ = getctrl("mrs_natural/inObservations")->to<mrs_natural>();
00069   israte_ = getctrl("mrs_real/israte")->to<mrs_real>();
00070 
00071   const realvec& data = ctrl_data_->to<realvec> ();
00072 
00073   setctrl("mrs_natural/onObservations", data.getRows());
00074   setctrl("mrs_natural/onSamples", inSamples_);
00075   setctrl("mrs_real/osrate", israte_);
00076   samplesToUse_ = data.getCols();
00077 
00078   count_ = 0;
00079 
00080   if( getctrl("mrs_bool/done")->isTrue()) {
00081     setctrl("mrs_bool/done", false);
00082   }
00083 }
00084 
00085 void
00086 RealvecSource::myProcess(realvec& in, realvec& out)
00087 {
00088   mrs_natural o,t;
00089   (void) in;
00090   //checkFlow(in,out);
00091   const realvec& data = ctrl_data_->to<realvec> ();
00092 
00093   if( count_ < samplesToUse_)
00094   {
00095     for (o=0; o < onObservations_; o++)
00096     {
00097       for (t=0; t < onSamples_; t++)
00098       {
00099         out(o,t) = data(o,count_ + t);
00100       }
00101     }
00102     count_ += onSamples_;
00103   }
00104   else
00105     setctrl("mrs_bool/done", true);
00106 
00107   if (count_ >= samplesToUse_)
00108   {
00109     setctrl("mrs_bool/done", true);
00110   }
00111 
00112   //out.dump();
00113 }