Marsyas  0.2
/home/gperciva/src/marsyas/src/marsyas/Transposer.cpp
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     ctrl_osrate_->setValue(ctrl_israte_, NOUPDATE);
00046     ctrl_onObsNames_->setValue(ctrl_inObsNames_, NOUPDATE);
00047 
00048     if (getctrl("mrs_natural/inSamples")->to<mrs_natural>() != getctrl("mrs_natural/onObservations")->to<mrs_natural>())
00049         updControl("mrs_natural/onObservations", getctrl("mrs_natural/inSamples")->to<mrs_natural>());
00050     if (getctrl("mrs_natural/onSamples")->to<mrs_natural>() != getctrl("mrs_natural/inObservations")->to<mrs_natural>())
00051         updControl("mrs_natural/onSamples", getctrl("mrs_natural/inObservations")->to<mrs_natural>());
00052 }
00053 
00054 
00055 void 
00056 Transposer::myProcess(realvec& in, realvec& out)
00057 {
00058     mrs_natural o,t;
00059     // copy all values but switch the dimensions
00060     // if input has [m,n] then output has [n,m]
00061     for (o=0; o < inObservations_; o++)
00062     {
00063         for (t = 0; t < inSamples_; t++)
00064         {
00065             // transpose observations in channels and vice versa
00066             out(t,o) = in(o,t);
00067         }
00068     }
00069 }