Marsyas  0.6.0-alpha
/usr/src/RPM/BUILD/marsyas-0.6.0/src/marsyas/marsystems/Transposer.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 "Transposer.h"
00020 
00021 using namespace std;
00022 using namespace Marsyas;
00023 
00024 Transposer::Transposer(mrs_string name):MarSystem("Transposer", name)
00025 {
00026 }
00027 
00028 Transposer::Transposer(const Transposer& a) : MarSystem(a)
00029 {
00030 }
00031 
00032 Transposer::~Transposer()
00033 {
00034 }
00035 
00036 MarSystem*
00037 Transposer::clone() const
00038 {
00039   return new Transposer(*this);
00040 }
00041 
00042 void
00043 Transposer::myUpdate(MarControlPtr sender)
00044 {
00045   (void) sender;  //suppress warning of unused parameter(s)
00046   ctrl_osrate_->setValue(ctrl_israte_, NOUPDATE);
00047   ctrl_onObsNames_->setValue(ctrl_inObsNames_, NOUPDATE);
00048 
00049   if (getctrl("mrs_natural/inSamples")->to<mrs_natural>() != getctrl("mrs_natural/onObservations")->to<mrs_natural>())
00050     updControl("mrs_natural/onObservations", getctrl("mrs_natural/inSamples")->to<mrs_natural>());
00051   if (getctrl("mrs_natural/onSamples")->to<mrs_natural>() != getctrl("mrs_natural/inObservations")->to<mrs_natural>())
00052     updControl("mrs_natural/onSamples", getctrl("mrs_natural/inObservations")->to<mrs_natural>());
00053 }
00054 
00055 
00056 void
00057 Transposer::myProcess(realvec& in, realvec& out)
00058 {
00059   mrs_natural o,t;
00060   // copy all values but switch the dimensions
00061   // if input has [m,n] then output has [n,m]
00062   for (o=0; o < inObservations_; o++)
00063   {
00064     for (t = 0; t < inSamples_; t++)
00065     {
00066       // transpose observations in channels and vice versa
00067       out(t,o) = in(o,t);
00068     }
00069   }
00070 }