Marsyas
0.6.0-alpha
|
00001 /* 00002 ** Copyright (C) 1998-2010 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 "Cascade.h" 00020 00021 00022 using std::ostringstream; 00023 using std::vector; 00024 00025 using namespace Marsyas; 00026 00027 Cascade::Cascade(mrs_string name): 00028 MarSystem("Cascade", name), 00029 m_valid_output(false) 00030 { 00031 isComposite_ = true; 00032 } 00033 00034 Cascade::Cascade(const Cascade & other): 00035 MarSystem(other), 00036 m_valid_output(false) 00037 { 00038 } 00039 00040 Cascade::~Cascade() 00041 { 00042 } 00043 00044 MarSystem* 00045 Cascade::clone() const 00046 { 00047 return new Cascade(*this); 00048 } 00049 00050 void 00051 Cascade::myUpdate(MarControlPtr sender) 00052 { 00053 child_count_t child_count = marsystems_.size(); 00054 00055 m_valid_output = true; 00056 00057 if (!child_count) 00058 { 00059 MarSystem::myUpdate(sender); 00060 return; 00061 } 00062 00063 m_child_info.resize(child_count); 00064 00065 ostringstream out_obs_names; 00066 mrs_natural out_observations = 0; 00067 mrs_natural out_samples = 0; 00068 mrs_real out_sample_rate = 0.0; 00069 00070 MarControlPtr observations = getControl("mrs_natural/inObservations"); 00071 MarControlPtr samples = getControl("mrs_natural/inSamples"); 00072 MarControlPtr rate = getControl("mrs_real/israte"); 00073 MarControlPtr obs_names = getControl("mrs_string/inObsNames"); 00074 00075 for (child_count_t i=0; i < child_count; ++i) 00076 { 00077 MarSystem * child = marsystems_[i]; 00078 system_info & child_info = m_child_info[i]; 00079 00080 child->setctrl("mrs_natural/inObservations", observations); 00081 child->setctrl("mrs_natural/inSamples", samples); 00082 child->setctrl("mrs_real/israte", rate); 00083 child->setctrl("mrs_string/inObsNames", obs_names); 00084 observations = child->getControl("mrs_natural/onObservations"); 00085 samples = child->getControl("mrs_natural/onSamples"); 00086 rate = child->getControl("mrs_real/osrate"); 00087 obs_names = child->getControl("mrs_string/onObsNames"); 00088 00089 mrs_natural child_out_observations = observations->to<mrs_natural>(); 00090 mrs_natural child_out_samples = samples->to<mrs_natural>(); 00091 mrs_natural child_out_sr = rate->to<mrs_real>(); 00092 00093 child_info.buffer.create(child_out_observations, child_out_samples); 00094 00095 if (i == 0) 00096 { 00097 out_samples = child_out_samples; 00098 out_sample_rate = child_out_sr; 00099 } 00100 else if ( (out_samples != child_out_samples) || 00101 (out_sample_rate != child_out_sr) ) 00102 { 00103 m_valid_output = false; 00104 } 00105 00106 out_observations += child_out_observations; 00107 out_obs_names << obs_names; 00108 } 00109 00110 if (!m_valid_output) 00111 MRSWARN("Cascade: children have incompatible output formats. Output disabled."); 00112 00113 //forward flow propagation 00114 setctrl(ctrl_onSamples_, out_samples); 00115 setctrl(ctrl_onObservations_, out_observations); 00116 setctrl(ctrl_osrate_, out_sample_rate); 00117 setctrl(ctrl_onObsNames_, out_obs_names.str()); 00118 } 00119 00120 void 00121 Cascade::myProcess(realvec& in, realvec& out) 00122 { 00123 child_count_t child_count = marsystems_.size(); 00124 00125 if (!m_valid_output) 00126 return; 00127 00128 if (!child_count) 00129 { 00130 out = in; 00131 return; 00132 } 00133 00134 if (child_count == 1) 00135 { 00136 marsystems_[0]->process(in, out); 00137 return; 00138 } 00139 00140 mrs_natural out_obs_offset = 0; 00141 00142 { 00143 realvec & child_out = m_child_info[0].buffer; 00144 00145 marsystems_[0]->process(in, child_out); 00146 00147 for (mrs_natural o = 0; o < child_out.getRows(); o++) 00148 for (mrs_natural t = 0; t < onSamples_; t++) 00149 out(o, t) = child_out(o, t); 00150 00151 out_obs_offset = child_out.getRows(); 00152 } 00153 00154 for (child_count_t i = 1; i < child_count; ++i) 00155 { 00156 realvec & child_out = m_child_info[i].buffer; 00157 realvec & prev_child_out = m_child_info[i-1].buffer; 00158 00159 marsystems_[i]->process(prev_child_out, child_out); 00160 00161 for (mrs_natural o = 0; o < child_out.getRows(); o++) 00162 for (mrs_natural t = 0; t < onSamples_; t++) 00163 out(out_obs_offset + o, t) = child_out(o, t); 00164 00165 out_obs_offset += child_out.getRows(); 00166 } 00167 }