Marsyas
0.6.0-alpha
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00001 /* 00002 ** Copyright (C) 1998-2007 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 00020 #include "Mono2Stereo.h" 00021 00022 using std::ostringstream; 00023 using namespace Marsyas; 00024 00025 Mono2Stereo::Mono2Stereo(mrs_string name):MarSystem("Mono2Stereo", name) 00026 { 00027 //Add any specific controls needed by Mono2Stereo 00028 //(default controls all MarSystems should have 00029 //were already added by MarSystem::addControl(), 00030 //called by :MarSystem(name) constructor). 00031 //If no specific controls are needed by a MarSystem 00032 //there is no need to implement and call this addControl() 00033 //method (see for e.g. Rms.cpp) 00034 addControls(); 00035 } 00036 00037 Mono2Stereo::Mono2Stereo(const Mono2Stereo& a) : MarSystem(a) 00038 { 00039 } 00040 00041 Mono2Stereo::~Mono2Stereo() 00042 { 00043 } 00044 00045 MarSystem* 00046 Mono2Stereo::clone() const 00047 { 00048 return new Mono2Stereo(*this); 00049 } 00050 00051 void 00052 Mono2Stereo::addControls() 00053 { 00054 } 00055 00056 void 00057 Mono2Stereo::myUpdate(MarControlPtr sender) 00058 { 00059 (void) sender; //suppress warning of unused parameter(s) 00060 setctrl("mrs_natural/onSamples", getctrl("mrs_natural/onSamples")); 00061 00062 mrs_natural inObservations = getctrl("mrs_natural/inObservations")->to<mrs_natural>(); 00063 00064 if (inObservations == 1) 00065 { 00066 setctrl("mrs_natural/onObservations", 2); 00067 mrs_string inObsNames = getctrl("mrs_string/inObsNames")->to<mrs_string>(); 00068 inObsNames += ","; 00069 inObsNames += inObsNames; 00070 setctrl("mrs_string/onObsNames", inObsNames); 00071 } 00072 else 00073 { 00074 setctrl("mrs_natural/onObservations", inObservations); 00075 setctrl("mrs_string/onObsNames", getctrl("mrs_string/inObsNames")); 00076 } 00077 setctrl("mrs_real/osrate", getctrl("mrs_real/israte")); 00078 00079 00080 00081 00082 } 00083 00084 00085 void 00086 Mono2Stereo::myProcess(realvec& in, realvec& out) 00087 { 00088 mrs_natural t,o; 00089 if (inObservations_ != 1) // not mono - just pass through 00090 { 00091 for (o=0; o < inObservations_; o++) 00092 { 00093 for (t = 0; t < inSamples_; t++) 00094 { 00095 out(o,t) = in(o,t); 00096 } 00097 } 00098 } 00099 00100 else // mono to stereo 00101 { 00102 for (o=0; o < onObservations_; o++) 00103 for (t = 0; t < inSamples_; t++) 00104 { 00105 out(o,t) = in(0,t); 00106 } 00107 00108 } 00109 00110 00111 } 00112 00113 00114 00115 00116 00117 00118 00119