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5
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1 /*
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2 * SpanDSP - a series of DSP components for telephony
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3 *
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4 * echo_monitor.cpp - Display echo canceller status, using the FLTK toolkit.
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5 *
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6 * Written by Steve Underwood <steveu@coppice.org>
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7 *
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8 * Copyright (C) 2004 Steve Underwood
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9 *
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10 * All rights reserved.
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11 *
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12 * This program is free software; you can redistribute it and/or modify
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13 * it under the terms of the GNU General Public License version 2, as
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14 * published by the Free Software Foundation.
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15 *
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16 * This program is distributed in the hope that it will be useful,
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17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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19 * GNU General Public License for more details.
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20 *
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21 * You should have received a copy of the GNU General Public License
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22 * along with this program; if not, write to the Free Software
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23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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24 *
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25 * $Id: echo_monitor.cpp,v 1.10 2006/10/24 13:22:02 steveu Exp $
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26 */
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27
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28 #ifdef HAVE_CONFIG_H
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29 #include "config.h"
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30 #endif
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31
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32 #if defined(HAVE_FL_FL_H) && defined(HAVE_FL_FL_CARTESIAN_H)
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33
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34 #include <inttypes.h>
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35 #include <stdio.h>
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36 #include <math.h>
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37 #include <stdlib.h>
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38 #include <string.h>
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39 #include <unistd.h>
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40 #include <sys/select.h>
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41 #if defined(HAVE_FFTW3_H)
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42 #include <fftw3.h>
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43 #else
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44 #include <fftw.h>
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45 #endif
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46
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47 #include <FL/Fl.H>
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48 #include <FL/Fl_Overlay_Window.H>
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49 #include <FL/Fl_Light_Button.H>
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50 #include <Fl/Fl_Cartesian.H>
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51 #include <Fl/Fl_Audio_Meter.H>
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52 #include <FL/fl_draw.H>
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53
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54 #include "../src/spandsp/complex.h"
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55 //#include "spandsp.h"
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56 #include "echo_monitor.h"
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57
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58 Fl_Double_Window *w;
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59
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60 Fl_Audio_Meter *audio_meter;
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61
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62 Fl_Group *c_spec;
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63 Fl_Group *c_right;
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64 Fl_Group *c_can;
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65 Fl_Group *c_line_model;
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66
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67 Ca_Canvas *canvas_spec;
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68 Ca_X_Axis *spec_freq;
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69 Ca_Y_Axis *spec_amp;
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70 Ca_Line *spec_re = NULL;
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71 double spec_re_plot[2*512];
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72
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73 Ca_Canvas *canvas_can;
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74 Ca_X_Axis *can_x;
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75 Ca_Y_Axis *can_y;
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76 Ca_Line *can_re = NULL;
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77 double can_re_plot[512];
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78
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79 Ca_Canvas *canvas_line_model;
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80 Ca_X_Axis *line_model_x;
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81 Ca_Y_Axis *line_model_y;
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82 Ca_Line *line_model_re = NULL;
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83 double line_model_re_plot[512];
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84
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85 static int skip = 0;
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86
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87 int in_ptr;
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88 #if defined(HAVE_FFTW3_H)
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89 double in[1024][2];
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90 double out[1024][2];
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91 #else
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92 fftw_complex in[1024];
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93 fftw_complex out[1024];
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94 #endif
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95 fftw_plan p;
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96
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97 int echo_can_monitor_can_update(const int16_t *coeffs, int len)
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98 {
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99 int i;
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100 float min;
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101 float max;
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102
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103 if (can_re)
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104 delete can_re;
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105
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106 canvas_can->current(canvas_can);
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107 i = 0;
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108 min = coeffs[i];
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109 max = coeffs[i];
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110 for (i = 0; i < len; i++)
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111 {
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112 can_re_plot[2*i] = i;
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113 can_re_plot[2*i + 1] = coeffs[i];
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114 if (min > coeffs[i])
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115 min = coeffs[i];
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116 if (max < coeffs[i])
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117 max = coeffs[i];
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118 }
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119 can_y->maximum((max == min) ? max + 0.2 : max);
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120 can_y->minimum(min);
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121 can_re = new Ca_Line(len, can_re_plot, 0, 0, FL_BLUE, CA_NO_POINT);
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122 if (++skip >= 100)
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123 {
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124 skip = 0;
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125 Fl::check();
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126 }
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127 return 0;
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128 }
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129 /*- End of function --------------------------------------------------------*/
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130
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131 int echo_can_monitor_line_model_update(const int32_t *coeffs, int len)
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132 {
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133 int i;
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134 float min;
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135 float max;
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136
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137 if (line_model_re)
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138 delete line_model_re;
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139
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140 canvas_line_model->current(canvas_line_model);
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141 i = 0;
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142 min = coeffs[i];
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143 max = coeffs[i];
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144 for (i = 0; i < len; i++)
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145 {
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146 line_model_re_plot[2*i] = i;
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147 line_model_re_plot[2*i + 1] = coeffs[i];
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148 if (min > coeffs[i])
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149 min = coeffs[i];
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150 if (max < coeffs[i])
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151 max = coeffs[i];
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152 }
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153 line_model_y->maximum((max == min) ? max + 0.2 : max);
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154 line_model_y->minimum(min);
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155 line_model_re = new Ca_Line(len, line_model_re_plot, 0, 0, FL_BLUE, CA_NO_POINT);
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156 if (++skip >= 100)
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157 {
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158 skip = 0;
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159 Fl::check();
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160 }
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161 return 0;
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162 }
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163 /*- End of function --------------------------------------------------------*/
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164
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165 int echo_can_monitor_line_spectrum_update(const int16_t amp[], int len)
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166 {
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167 int i;
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168 int x;
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169
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170 for (i = 0; i < len; i++)
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171 audio_meter->sample(amp[i]/32768.0);
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172
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173 if (in_ptr + len < 512)
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174 {
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175 /* Just add this fragment to the buffer. */
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176 for (i = 0; i < len; i++)
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177 #if defined(HAVE_FFTW3_H)
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178 in[in_ptr + i][0] = amp[i];
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179 #else
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180 in[in_ptr + i].re = amp[i];
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181 #endif
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182 in_ptr += len;
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183 return 0;
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184 }
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185 if (len >= 512)
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186 {
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187 /* We have enough for a whole block. Use the last 512 samples
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188 we have. */
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189 x = len - 512;
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190 for (i = 0; i < 512; i++)
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191 #if defined(HAVE_FFTW3_H)
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192 in[i][0] = amp[x + i];
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193 #else
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194 in[i].re = amp[x + i];
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195 #endif
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196 }
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197 else
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198 {
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199 /* We want the last 512 samples. */
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200 x = 512 - len;
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201 for (i = 0; i < x; i++)
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202 #if defined(HAVE_FFTW3_H)
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203 in[i][0] = in[in_ptr - x + i][0];
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204 #else
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205 in[i].re = in[in_ptr - x + i].re;
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206 #endif
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207 for (i = x; i < 512; i++)
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208 #if defined(HAVE_FFTW3_H)
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209 in[i][0] = amp[i - x];
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210 #else
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211 in[i].re = amp[i - x];
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212 #endif
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213 }
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214 in_ptr = 0;
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215 #if defined(HAVE_FFTW3_H)
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216 fftw_execute(p);
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217 #else
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218 fftw_one(p, in, out);
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219 #endif
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220 if (spec_re)
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221 delete spec_re;
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222 canvas_spec->current(canvas_spec);
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223 for (i = 0; i < 512; i++)
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224 {
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225 spec_re_plot[2*i] = i*4000.0/512.0;
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226 #if defined(HAVE_FFTW3_H)
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227 spec_re_plot[2*i + 1] = 20.0*log10(sqrt(out[i][0]*out[i][0] + out[i][1]*out[i][1])/(256.0*32768)) + 3.14;
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228 #else
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229 spec_re_plot[2*i + 1] = 20.0*log10(sqrt(out[i].re*out[i].re + out[i].im*out[i].im)/(256.0*32768)) + 3.14;
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230 #endif
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231 }
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232 spec_re = new Ca_Line(512, spec_re_plot, 0, 0, FL_BLUE, CA_NO_POINT);
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233 Fl::check();
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234 return 0;
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235 }
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236 /*- End of function --------------------------------------------------------*/
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237
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238 int start_echo_can_monitor(int len)
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239 {
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240 char buf[132 + 1];
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241 float x;
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242 float y;
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243 int i;
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244
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245 w = new Fl_Double_Window(850, 400, "Echo canceller monitor");
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246
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247 c_spec = new Fl_Group(0, 0, 380, 400);
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248 c_spec->box(FL_DOWN_BOX);
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249 c_spec->align(FL_ALIGN_TOP | FL_ALIGN_INSIDE);
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250
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251 canvas_spec = new Ca_Canvas(60, 30, 300, 300, "Spectrum");
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252 canvas_spec->box(FL_PLASTIC_DOWN_BOX);
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253 canvas_spec->color(7);
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254 canvas_spec->align(FL_ALIGN_TOP);
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255 canvas_spec->border(15);
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256
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257 spec_freq = new Ca_X_Axis(65, 330, 290, 30, "Freq (Hz)");
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258 spec_freq->align(FL_ALIGN_BOTTOM);
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259 spec_freq->minimum(0);
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260 spec_freq->maximum(4000);
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261 spec_freq->label_format("%g");
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262 spec_freq->minor_grid_color(fl_gray_ramp(20));
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263 spec_freq->major_grid_color(fl_gray_ramp(15));
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264 spec_freq->label_grid_color(fl_gray_ramp(10));
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265 spec_freq->grid_visible(CA_LABEL_GRID | CA_ALWAYS_VISIBLE);
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266 spec_freq->minor_grid_style(FL_DOT);
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267 spec_freq->major_step(5);
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268 spec_freq->label_step(1);
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269 spec_freq->axis_color(FL_BLACK);
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270 spec_freq->axis_align(CA_BOTTOM | CA_LINE);
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271
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272 spec_amp = new Ca_Y_Axis(20, 35, 40, 290, "Amp (dBmO)");
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273 spec_amp->align(FL_ALIGN_LEFT);
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274 spec_amp->minimum(-80.0);
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275 spec_amp->maximum(10.0);
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276 spec_amp->minor_grid_color(fl_gray_ramp(20));
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277 spec_amp->major_grid_color(fl_gray_ramp(15));
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278 spec_amp->label_grid_color(fl_gray_ramp(10));
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279 //spec_amp->grid_visible(CA_MINOR_TICK | CA_MAJOR_TICK | CA_LABEL_GRID | CA_ALWAYS_VISIBLE);
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280 spec_amp->grid_visible(CA_LABEL_GRID | CA_ALWAYS_VISIBLE);
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281 spec_amp->minor_grid_style(FL_DOT);
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282 spec_amp->major_step(5);
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283 spec_amp->label_step(1);
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284 spec_amp->axis_color(FL_BLACK);
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285
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286 spec_amp->current();
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287
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288 c_spec->end();
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289
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290 c_right = new Fl_Group(440, 0, 465, 405);
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291
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292 c_can = new Fl_Group(380, 0, 415, 200);
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293 c_can->box(FL_DOWN_BOX);
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294 c_can->align(FL_ALIGN_TOP | FL_ALIGN_INSIDE);
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295 c_can->current();
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296
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297 canvas_can = new Ca_Canvas(460, 35, 300, 100, "Canceller coefficients");
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298 canvas_can->box(FL_PLASTIC_DOWN_BOX);
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299 canvas_can->color(7);
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300 canvas_can->align(FL_ALIGN_TOP);
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301 Fl_Group::current()->resizable(canvas_can);
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302 canvas_can->border(15);
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303
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304 can_x = new Ca_X_Axis(465, 135, 290, 30, "Tap");
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305 can_x->align(FL_ALIGN_BOTTOM);
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306 can_x->minimum(0.0);
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307 can_x->maximum((float) len);
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308 can_x->label_format("%g");
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309 can_x->minor_grid_color(fl_gray_ramp(20));
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310 can_x->major_grid_color(fl_gray_ramp(15));
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311 can_x->label_grid_color(fl_gray_ramp(10));
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312 can_x->grid_visible(CA_LABEL_GRID | CA_ALWAYS_VISIBLE);
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313 can_x->minor_grid_style(FL_DOT);
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314 can_x->major_step(5);
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315 can_x->label_step(1);
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316 can_x->axis_align(CA_BOTTOM | CA_LINE);
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317 can_x->axis_color(FL_BLACK);
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318 can_x->current();
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319
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320 can_y = new Ca_Y_Axis(420, 40, 40, 90, "Amp");
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321 can_y->align(FL_ALIGN_LEFT);
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322 can_y->minimum(-0.1);
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323 can_y->maximum(0.1);
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324 can_y->minor_grid_color(fl_gray_ramp(20));
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325 can_y->major_grid_color(fl_gray_ramp(15));
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326 can_y->label_grid_color(fl_gray_ramp(10));
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327 can_y->grid_visible(CA_LABEL_GRID | CA_ALWAYS_VISIBLE);
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328 can_y->minor_grid_style(FL_DOT);
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329 can_y->major_step(5);
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330 can_y->label_step(1);
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331 can_y->axis_color(FL_BLACK);
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332 can_y->current();
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333
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334 c_can->end();
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335
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336 c_line_model = new Fl_Group(380, 200, 415, 200);
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337 c_line_model->box(FL_DOWN_BOX);
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338 c_line_model->align(FL_ALIGN_TOP | FL_ALIGN_INSIDE);
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339 c_line_model->current();
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340
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341 canvas_line_model = new Ca_Canvas(460, 235, 300, 100, "Line impulse response model");
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342 canvas_line_model->box(FL_PLASTIC_DOWN_BOX);
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343 canvas_line_model->color(7);
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344 canvas_line_model->align(FL_ALIGN_TOP);
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345 Fl_Group::current()->resizable(canvas_line_model);
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346 canvas_line_model->border(15);
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347
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348 line_model_x = new Ca_X_Axis(465, 335, 290, 30, "Tap");
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349 line_model_x->align(FL_ALIGN_BOTTOM);
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350 line_model_x->minimum(0.0);
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351 line_model_x->maximum((float) len);
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352 line_model_x->label_format("%g");
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353 line_model_x->minor_grid_color(fl_gray_ramp(20));
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354 line_model_x->major_grid_color(fl_gray_ramp(15));
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355 line_model_x->label_grid_color(fl_gray_ramp(10));
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356 line_model_x->grid_visible(CA_LABEL_GRID | CA_ALWAYS_VISIBLE);
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357 line_model_x->minor_grid_style(FL_DOT);
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358 line_model_x->major_step(5);
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359 line_model_x->label_step(1);
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360 line_model_x->axis_align(CA_BOTTOM | CA_LINE);
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361 line_model_x->axis_color(FL_BLACK);
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362 line_model_x->current();
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363
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364 line_model_y = new Ca_Y_Axis(420, 240, 40, 90, "Amp");
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365 line_model_y->align(FL_ALIGN_LEFT);
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366 line_model_y->minimum(-0.1);
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367 line_model_y->maximum(0.1);
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368 line_model_y->minor_grid_color(fl_gray_ramp(20));
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369 line_model_y->major_grid_color(fl_gray_ramp(15));
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370 line_model_y->label_grid_color(fl_gray_ramp(10));
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371 line_model_y->grid_visible(CA_LABEL_GRID | CA_ALWAYS_VISIBLE);
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372 line_model_y->minor_grid_style(FL_DOT);
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373 line_model_y->major_step(5);
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374 line_model_y->label_step(1);
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375 line_model_y->axis_color(FL_BLACK);
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376 line_model_y->current();
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377
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378 c_line_model->end();
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379
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380 audio_meter = new Fl_Audio_Meter(810, 40, 10, 250, "");
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381 audio_meter->box(FL_PLASTIC_UP_BOX);
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382 audio_meter->type(FL_VERT_AUDIO_METER);
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383
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384 c_right->end();
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385
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386 Fl_Group::current()->resizable(c_right);
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387 w->end();
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388 w->show();
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389
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390 #if defined(HAVE_FFTW3_H)
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391 p = fftw_plan_dft_1d(1024, in, out, FFTW_BACKWARD, FFTW_ESTIMATE);
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392 for (i = 0; i < 1024; i++)
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393 {
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394 in[i][0] = 0.0;
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395 in[i][1] = 0.0;
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396 }
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397 #else
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398 p = fftw_create_plan(1024, FFTW_BACKWARD, FFTW_ESTIMATE);
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399 for (i = 0; i < 1024; i++)
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400 {
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401 in[i].re = 0.0;
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402 in[i].im = 0.0;
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403 }
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404 #endif
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405 in_ptr = 0;
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406
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407 Fl::check();
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408 return 0;
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409 }
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410 /*- End of function --------------------------------------------------------*/
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411
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412 void echo_can_monitor_wait_to_end(void)
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413 {
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414 fd_set rfds;
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415 int res;
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416 struct timeval tv;
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417
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418 fprintf(stderr, "Processing complete. Press the <enter> key to end\n");
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419 do
|
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420 {
|
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421 usleep(100000);
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422 Fl::check();
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423 FD_ZERO(&rfds);
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424 FD_SET(0, &rfds);
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|
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425 tv.tv_usec = 100000;
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426 tv.tv_sec = 0;
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427 res = select(1, &rfds, NULL, NULL, &tv);
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428 }
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|
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429 while (res <= 0);
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|
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430 }
|
|
|
431 /*- End of function --------------------------------------------------------*/
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|
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432
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433 void echo_can_monitor_update_display(void)
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|
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434 {
|
|
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435 Fl::check();
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436 Fl::check();
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|
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437 Fl::check();
|
|
|
438 Fl::check();
|
|
|
439 Fl::check();
|
|
|
440 Fl::check();
|
|
|
441 Fl::check();
|
|
|
442 Fl::check();
|
|
|
443 Fl::check();
|
|
|
444 Fl::check();
|
|
|
445 Fl::check();
|
|
|
446 Fl::check();
|
|
|
447 }
|
|
|
448 /*- End of function --------------------------------------------------------*/
|
|
|
449 #endif
|
|
|
450 /*- End of file ------------------------------------------------------------*/
|
