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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 * dtmf_tx_tests.c - Test the DTMF generator.
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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) 2003 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: dtmf_tx_tests.c,v 1.11 2006/11/19 14:07:27 steveu Exp $
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26 */
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27
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28 /*! \file */
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29
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30 /*! \page dtmf_tx_tests_page DTMF generation tests
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31 \section dtmf_tx_tests_page_sec_1 What does it do?
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32 ???.
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33
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34 \section dtmf_tx_tests_page_sec_2 How does it work?
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35 ???.
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36 */
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37
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38 #ifdef HAVE_CONFIG_H
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39 #include "config.h"
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40 #endif
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41
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42 #include <stdlib.h>
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43 #include <inttypes.h>
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44 #include <string.h>
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45 #if defined(HAVE_TGMATH_H)
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46 #include <tgmath.h>
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47 #endif
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48 #if defined(HAVE_MATH_H)
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49 #include <math.h>
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50 #endif
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51 #include <stdio.h>
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52 #include <time.h>
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53 #include <fcntl.h>
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54 #include <audiofile.h>
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55 #include <tiffio.h>
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56
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57 #include "spandsp.h"
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58
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59 #define OUTPUT_FILE_NAME "dtmf.wav"
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60
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61 int main(int argc, char *argv[])
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62 {
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63 dtmf_tx_state_t gen;
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64 int16_t amp[16384];
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65 int len;
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66 AFfilehandle outhandle;
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67 AFfilesetup filesetup;
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68 int outframes;
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69 int add_digits;
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70
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71 if ((filesetup = afNewFileSetup()) == AF_NULL_FILESETUP)
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72 {
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73 fprintf(stderr, " Failed to create file setup\n");
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74 exit(2);
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75 }
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76 afInitSampleFormat(filesetup, AF_DEFAULT_TRACK, AF_SAMPFMT_TWOSCOMP, 16);
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77 afInitRate(filesetup, AF_DEFAULT_TRACK, 8000.0);
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78 //afInitCompression(filesetup, AF_DEFAULT_TRACK, AF_COMPRESSION_G711_ALAW);
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79 afInitFileFormat(filesetup, AF_FILE_WAVE);
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80 afInitChannels(filesetup, AF_DEFAULT_TRACK, 1);
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81
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82 if ((outhandle = afOpenFile(OUTPUT_FILE_NAME, "w", filesetup)) == AF_NULL_FILEHANDLE)
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83 {
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84 fprintf(stderr, " Cannot open wave file '%s'\n", OUTPUT_FILE_NAME);
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85 exit(2);
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86 }
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87
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88 dtmf_tx_init(&gen);
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89 len = dtmf_tx(&gen, amp, 16384);
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90 printf("Generated %d samples\n", len);
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91 outframes = afWriteFrames(outhandle, AF_DEFAULT_TRACK, amp, len);
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92 if (dtmf_tx_put(&gen, "123"))
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93 printf("Ooops\n");
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94 len = dtmf_tx(&gen, amp, 16384);
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95 printf("Generated %d samples\n", len);
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96 outframes = afWriteFrames(outhandle, AF_DEFAULT_TRACK, amp, len);
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97 if (dtmf_tx_put(&gen, "456"))
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98 printf("Ooops\n");
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99 len = dtmf_tx(&gen, amp, 160);
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100 printf("Generated %d samples\n", len);
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101 outframes = afWriteFrames(outhandle, AF_DEFAULT_TRACK, amp, len);
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102 if (dtmf_tx_put(&gen, "789"))
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103 printf("Ooops\n");
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104 len = dtmf_tx(&gen, amp, 160);
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105 printf("Generated %d samples\n", len);
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106 outframes = afWriteFrames(outhandle, AF_DEFAULT_TRACK, amp, len);
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107 if (dtmf_tx_put(&gen, "*#"))
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108 printf("Ooops\n");
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109 len = dtmf_tx(&gen, amp, 160);
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110 printf("Generated %d samples\n", len);
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111 outframes = afWriteFrames(outhandle, AF_DEFAULT_TRACK, amp, len);
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112 add_digits = 1;
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113 do
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114 {
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115 len = dtmf_tx(&gen, amp, 160);
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116 printf("Generated %d samples\n", len);
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117 if (len > 0)
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118 {
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119 outframes = afWriteFrames(outhandle, AF_DEFAULT_TRACK, amp, len);
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120 }
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121 if (add_digits)
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122 {
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123 if (dtmf_tx_put(&gen, "1234567890"))
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124 {
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125 printf("Digit buffer full\n");
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126 add_digits = 0;
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127 }
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128 }
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129 }
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130 while (len > 0);
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131
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132 dtmf_tx_init(&gen);
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133 len = dtmf_tx(&gen, amp, 16384);
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134 printf("Generated %d samples\n", len);
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135 outframes = afWriteFrames(outhandle, AF_DEFAULT_TRACK, amp, len);
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136 if (dtmf_tx_put(&gen, "123"))
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137 printf("Ooops\n");
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138 len = dtmf_tx(&gen, amp, 16384);
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139 printf("Generated %d samples\n", len);
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140 outframes = afWriteFrames(outhandle, AF_DEFAULT_TRACK, amp, len);
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141 if (dtmf_tx_put(&gen, "456"))
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142 printf("Ooops\n");
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143 len = dtmf_tx(&gen, amp, 160);
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144 printf("Generated %d samples\n", len);
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145 outframes = afWriteFrames(outhandle, AF_DEFAULT_TRACK, amp, len);
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146 if (dtmf_tx_put(&gen, "789"))
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147 printf("Ooops\n");
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148 len = dtmf_tx(&gen, amp, 160);
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149 printf("Generated %d samples\n", len);
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150 outframes = afWriteFrames(outhandle, AF_DEFAULT_TRACK, amp, len);
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151 if (dtmf_tx_put(&gen, "0*#"))
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152 printf("Ooops\n");
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153 len = dtmf_tx(&gen, amp, 160);
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154 printf("Generated %d samples\n", len);
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155 outframes = afWriteFrames(outhandle, AF_DEFAULT_TRACK, amp, len);
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156 if (dtmf_tx_put(&gen, "ABCD"))
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157 printf("Ooops\n");
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158 len = dtmf_tx(&gen, amp, 160);
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159 printf("Generated %d samples\n", len);
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160 outframes = afWriteFrames(outhandle, AF_DEFAULT_TRACK, amp, len);
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161 add_digits = 1;
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162 do
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163 {
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164 len = dtmf_tx(&gen, amp, 160);
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165 printf("Generated %d samples\n", len);
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166 if (len > 0)
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167 {
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168 outframes = afWriteFrames(outhandle, AF_DEFAULT_TRACK, amp, len);
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169 }
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170 if (add_digits)
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171 {
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172 if (dtmf_tx_put(&gen, "1234567890"))
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173 {
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174 printf("Digit buffer full\n");
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175 add_digits = 0;
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176 }
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177 }
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178 }
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179 while (len > 0);
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180
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181 if (afCloseFile(outhandle) != 0)
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182 {
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183 fprintf(stderr, " Cannot close wave file '%s'\n", OUTPUT_FILE_NAME);
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184 exit (2);
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185 }
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186 afFreeFileSetup(filesetup);
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187
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188 return 0;
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189 }
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190 /*- End of function --------------------------------------------------------*/
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191 /*- End of file ------------------------------------------------------------*/
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