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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 * fax_tests.c
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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: fax_tests.c,v 1.60 2006/11/19 14:07:27 steveu Exp $
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26 */
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27
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28 /*! \page fax_tests_page FAX tests
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29 \section fax_tests_page_sec_1 What does it do?
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30 \section fax_tests_page_sec_2 How does it work?
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31 */
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32
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33 #ifdef HAVE_CONFIG_H
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34 #include "config.h"
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35 #endif
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36
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37 #include <inttypes.h>
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38 #include <stdlib.h>
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39 #include <stdio.h>
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40 #include <string.h>
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41 #if defined(HAVE_TGMATH_H)
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42 #include <tgmath.h>
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43 #endif
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44 #if defined(HAVE_MATH_H)
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45 #include <math.h>
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46 #endif
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47 #include <assert.h>
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48 #include <audiofile.h>
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49 #include <tiffio.h>
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50
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51 #include "spandsp.h"
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52
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53 #define SAMPLES_PER_CHUNK 160
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54
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55 #define INPUT_TIFF_FILE_NAME "../itutests/fax/itutests.tif"
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56
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57 #define OUTPUT_FILE_NAME_WAVE "fax_tests.wav"
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58
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59 #define FAX_MACHINES 2
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60
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61 struct machine_s
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62 {
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63 int chan;
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64 int16_t amp[SAMPLES_PER_CHUNK];
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65 int len;
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66 fax_state_t fax;
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67 int done;
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68 int succeeded;
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69 char tag[50];
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70 int error_delay;
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71 } machines[FAX_MACHINES];
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72
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73 int test_local_interrupt = FALSE;
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74
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75 static void phase_b_handler(t30_state_t *s, void *user_data, int result)
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76 {
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77 int i;
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78
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79 i = (intptr_t) user_data;
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80 printf("%d: Phase B handler on channel %d - (0x%X) %s\n", i, i, result, t30_frametype(result));
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81 }
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82 /*- End of function --------------------------------------------------------*/
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83
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84 static void phase_d_handler(t30_state_t *s, void *user_data, int result)
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85 {
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86 int i;
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87 t30_stats_t t;
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88 char ident[21];
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89
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90 i = (intptr_t) user_data;
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91 printf("%d: Phase D handler on channel %d - (0x%X) %s\n", i, i, result, t30_frametype(result));
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92 t30_get_transfer_statistics(s, &t);
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93 printf("%d: Phase D: bit rate %d\n", i, t.bit_rate);
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94 printf("%d: Phase D: ECM %s\n", i, (t.error_correcting_mode) ? "on" : "off");
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95 printf("%d: Phase D: pages transferred %d\n", i, t.pages_transferred);
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96 printf("%d: Phase D: image size %d x %d\n", i, t.width, t.length);
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97 printf("%d: Phase D: image resolution %d x %d\n", i, t.x_resolution, t.y_resolution);
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98 printf("%d: Phase D: bad rows %d\n", i, t.bad_rows);
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99 printf("%d: Phase D: longest bad row run %d\n", i, t.longest_bad_row_run);
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100 printf("%d: Phase D: compression type %d\n", i, t.encoding);
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101 printf("%d: Phase D: image size %d\n", i, t.image_size);
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102 t30_get_local_ident(s, ident);
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103 printf("%d: Phase D: local ident '%s'\n", i, ident);
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104 t30_get_far_ident(s, ident);
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105 printf("%d: Phase D: remote ident '%s'\n", i, ident);
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106
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107 if (test_local_interrupt)
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108 {
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109 if (i == 0)
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110 {
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111 printf("%d: Initiating interrupt request\n", i);
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112 t30_local_interrupt_request(s, TRUE);
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113 }
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114 else
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115 {
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116 switch (result)
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117 {
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118 case T30_PIP:
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119 case T30_PRI_MPS:
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120 case T30_PRI_EOM:
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121 case T30_PRI_EOP:
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122 printf("%d: Accepting interrupt request\n", i);
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123 t30_local_interrupt_request(s, TRUE);
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124 break;
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125 case T30_PIN:
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126 break;
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127 }
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128 }
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129 }
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130 }
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131 /*- End of function --------------------------------------------------------*/
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132
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133 static void phase_e_handler(t30_state_t *s, void *user_data, int result)
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134 {
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135 int i;
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136 t30_stats_t t;
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137 const char *u;
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138 char ident[21];
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139
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140 i = (intptr_t) user_data;
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141 printf("%d: Phase E handler on channel %d - (%d) %s\n", i, i, result, t30_completion_code_to_str(result));
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142 t30_get_transfer_statistics(s, &t);
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143 printf("%d: Phase E: bit rate %d\n", i, t.bit_rate);
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144 printf("%d: Phase E: ECM %s\n", i, (t.error_correcting_mode) ? "on" : "off");
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145 printf("%d: Phase E: pages transferred %d\n", i, t.pages_transferred);
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146 printf("%d: Phase E: image size %d x %d\n", i, t.width, t.length);
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147 printf("%d: Phase E: image resolution %d x %d\n", i, t.x_resolution, t.y_resolution);
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148 printf("%d: Phase E: bad rows %d\n", i, t.bad_rows);
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149 printf("%d: Phase E: longest bad row run %d\n", i, t.longest_bad_row_run);
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150 printf("%d: Phase E: coding method %s\n", i, t4_encoding_to_str(t.encoding));
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151 printf("%d: Phase E: image size %d bytes\n", i, t.image_size);
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152 t30_get_local_ident(s, ident);
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153 printf("%d: Phase E: local ident '%s'\n", i, ident);
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154 t30_get_far_ident(s, ident);
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155 printf("%d: Phase E: remote ident '%s'\n", i, ident);
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156 if ((u = t30_get_far_country(s)))
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157 printf("%d: Phase E: Remote was made in '%s'\n", i, u);
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158 if ((u = t30_get_far_vendor(s)))
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159 printf("%d: Phase E: Remote was made by '%s'\n", i, u);
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160 if ((u = t30_get_far_model(s)))
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161 printf("%d: Phase E: Remote is model '%s'\n", i, u);
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162 machines[i].succeeded = (result == T30_ERR_OK) && (t.pages_transferred == 12);
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163 machines[i].done = TRUE;
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164 }
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165 /*- End of function --------------------------------------------------------*/
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166
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167 static int document_handler(t30_state_t *s, void *user_data, int event)
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168 {
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169 int i;
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170
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171 i = (intptr_t) user_data;
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172 printf("%d: Document handler on channel %d - event %d\n", i, i, event);
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173 return FALSE;
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174 }
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175 /*- End of function --------------------------------------------------------*/
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176
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177 int main(int argc, char *argv[])
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178 {
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179 AFfilesetup filesetup;
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180 AFfilehandle wave_handle;
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181 AFfilehandle input_wave_handle;
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182 int i;
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183 int j;
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184 int k;
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185 struct machine_s *mc;
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186 int outframes;
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187 char buf[128 + 1];
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188 int16_t silence[SAMPLES_PER_CHUNK];
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189 int16_t out_amp[2*SAMPLES_PER_CHUNK];
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190 int alldone;
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191 const char *input_tiff_file_name;
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192 const char *input_audio_file_name;
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193 int log_audio;
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194 int use_ecm;
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195 int use_tep;
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196 int use_line_hits;
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197 int polled_mode;
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198 char *page_header_info;
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199
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200 log_audio = FALSE;
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201 input_tiff_file_name = INPUT_TIFF_FILE_NAME;
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202 input_audio_file_name = NULL;
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203 use_ecm = FALSE;
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204 use_line_hits = FALSE;
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205 use_tep = FALSE;
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206 polled_mode = FALSE;
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207 page_header_info = NULL;
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208 for (i = 1; i < argc; i++)
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209 {
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210 if (strcmp(argv[i], "-e") == 0)
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211 {
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212 use_ecm = TRUE;
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213 continue;
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214 }
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215 if (strcmp(argv[i], "-h") == 0)
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216 {
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217 use_line_hits = TRUE;
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218 continue;
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219 }
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220 if (strcmp(argv[i], "-H") == 0)
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221 {
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222 page_header_info = argv[++i];
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223 continue;
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224 }
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225 if (strcmp(argv[i], "-i") == 0)
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226 {
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227 input_tiff_file_name = argv[++i];
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228 continue;
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229 }
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230 if (strcmp(argv[i], "-I") == 0)
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231 {
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232 input_audio_file_name = argv[++i];
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233 continue;
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234 }
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235 if (strcmp(argv[i], "-l") == 0)
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236 {
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237 log_audio = TRUE;
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238 continue;
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239 }
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240 if (strcmp(argv[i], "-p") == 0)
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241 {
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242 polled_mode = TRUE;
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243 continue;
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244 }
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245 if (strcmp(argv[i], "-t") == 0)
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246 {
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247 use_tep = TRUE;
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248 continue;
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249 }
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250 }
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251
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252 input_wave_handle = AF_NULL_FILEHANDLE;
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253 if (input_audio_file_name)
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254 {
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255 if ((input_wave_handle = afOpenFile(input_audio_file_name, "r", NULL)) == AF_NULL_FILEHANDLE)
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256 {
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257 fprintf(stderr, " Cannot open wave file '%s'\n", input_audio_file_name);
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258 exit(2);
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259 }
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260 }
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261
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262 filesetup = AF_NULL_FILESETUP;
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263 wave_handle = AF_NULL_FILEHANDLE;
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264 if (log_audio)
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265 {
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266 if ((filesetup = afNewFileSetup()) == AF_NULL_FILESETUP)
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267 {
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268 fprintf(stderr, " Failed to create file setup\n");
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269 exit(2);
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270 }
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271 afInitSampleFormat(filesetup, AF_DEFAULT_TRACK, AF_SAMPFMT_TWOSCOMP, 16);
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272 afInitRate(filesetup, AF_DEFAULT_TRACK, (float) SAMPLE_RATE);
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273 afInitFileFormat(filesetup, AF_FILE_WAVE);
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274 afInitChannels(filesetup, AF_DEFAULT_TRACK, 2);
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275
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276 if ((wave_handle = afOpenFile(OUTPUT_FILE_NAME_WAVE, "w", filesetup)) == AF_NULL_FILEHANDLE)
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277 {
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278 fprintf(stderr, " Cannot create wave file '%s'\n", OUTPUT_FILE_NAME_WAVE);
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279 exit(2);
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280 }
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281 }
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282
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283 memset(silence, 0, sizeof(silence));
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284 for (j = 0; j < FAX_MACHINES; j++)
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285 {
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286 machines[j].chan = j;
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287 mc = &machines[j];
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288
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289 i = mc->chan + 1;
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290 sprintf(buf, "%d%d%d%d%d%d%d%d", i, i, i, i, i, i, i, i);
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291 fax_init(&mc->fax, (mc->chan & 1) ? FALSE : TRUE);
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292 fax_set_tep_mode(&mc->fax, use_tep);
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293 t30_set_local_ident(&mc->fax.t30_state, buf);
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294 t30_set_header_info(&mc->fax.t30_state, page_header_info);
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295 t30_set_local_nsf(&mc->fax.t30_state, (const uint8_t *) "\x50\x00\x00\x00Spandsp\x00", 12);
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296 t30_set_ecm_capability(&mc->fax.t30_state, use_ecm);
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297 t30_set_supported_image_sizes(&mc->fax.t30_state, T30_SUPPORT_US_LETTER_LENGTH | T30_SUPPORT_US_LEGAL_LENGTH | T30_SUPPORT_UNLIMITED_LENGTH
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298 | T30_SUPPORT_215MM_WIDTH | T30_SUPPORT_255MM_WIDTH | T30_SUPPORT_303MM_WIDTH);
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299 t30_set_supported_resolutions(&mc->fax.t30_state, T30_SUPPORT_STANDARD_RESOLUTION | T30_SUPPORT_FINE_RESOLUTION | T30_SUPPORT_SUPERFINE_RESOLUTION
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300 | T30_SUPPORT_R8_RESOLUTION | T30_SUPPORT_R16_RESOLUTION);
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301 if (use_ecm)
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302 t30_set_supported_compressions(&mc->fax.t30_state, T30_SUPPORT_T4_1D_COMPRESSION | T30_SUPPORT_T4_2D_COMPRESSION | T30_SUPPORT_T6_COMPRESSION);
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303 if ((mc->chan & 1))
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304 {
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305 if (polled_mode)
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306 {
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307 t30_set_tx_file(&mc->fax.t30_state, input_tiff_file_name, -1, -1);
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308 }
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309 else
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310 {
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311 sprintf(buf, "fax_tests_%d.tif", (mc->chan + 1)/2);
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312 t30_set_rx_file(&mc->fax.t30_state, buf, -1);
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313 }
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314 }
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315 else
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316 {
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317 if (polled_mode)
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318 {
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319 sprintf(buf, "fax_tests_%d.tif", (mc->chan + 1)/2);
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320 t30_set_rx_file(&mc->fax.t30_state, buf, -1);
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321 }
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322 else
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323 {
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324 t30_set_tx_file(&mc->fax.t30_state, input_tiff_file_name, -1, -1);
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325 }
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326 }
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327 t30_set_phase_b_handler(&mc->fax.t30_state, phase_b_handler, (void *) (intptr_t) mc->chan);
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328 t30_set_phase_d_handler(&mc->fax.t30_state, phase_d_handler, (void *) (intptr_t) mc->chan);
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329 t30_set_phase_e_handler(&mc->fax.t30_state, phase_e_handler, (void *) (intptr_t) mc->chan);
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330 t30_set_document_handler(&mc->fax.t30_state, document_handler, (void *) (intptr_t) mc->chan);
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331 sprintf(mc->tag, "FAX-%d", j + 1);
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332 span_log_set_level(&mc->fax.t30_state.logging, SPAN_LOG_SHOW_SEVERITY | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME | SPAN_LOG_FLOW);
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333 span_log_set_tag(&mc->fax.t30_state.logging, mc->tag);
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334 span_log_set_level(&mc->fax.v29rx.logging, SPAN_LOG_SHOW_SEVERITY | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME | SPAN_LOG_FLOW);
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335 span_log_set_tag(&mc->fax.v29rx.logging, mc->tag);
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336 span_log_set_level(&mc->fax.logging, SPAN_LOG_SHOW_SEVERITY | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME | SPAN_LOG_FLOW);
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337 span_log_set_tag(&mc->fax.logging, mc->tag);
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338 memset(mc->amp, 0, sizeof(mc->amp));
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339 mc->done = FALSE;
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340 }
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341 for (;;)
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342 {
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343 alldone = TRUE;
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344 for (j = 0; j < FAX_MACHINES; j++)
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345 {
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346 mc = &machines[j];
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347
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348 if ((j & 1) == 0 && input_audio_file_name)
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349 {
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350 mc->len = afReadFrames(input_wave_handle, AF_DEFAULT_TRACK, mc->amp, SAMPLES_PER_CHUNK);
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351 if (mc->len == 0)
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352 break;
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353 }
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354 else
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355 {
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356 mc->len = fax_tx(&mc->fax, mc->amp, SAMPLES_PER_CHUNK);
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357 }
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358 /* The receive side always expects a full block of samples, but the
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359 transmit side may not be sending any when it doesn't need to. We
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360 may need to pad with some silence. */
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361 if (mc->len < SAMPLES_PER_CHUNK)
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362 {
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363 memset(mc->amp + mc->len, 0, sizeof(int16_t)*(SAMPLES_PER_CHUNK - mc->len));
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364 mc->len = SAMPLES_PER_CHUNK;
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365 }
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366
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367 span_log_bump_samples(&mc->fax.t30_state.logging, mc->len);
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368 span_log_bump_samples(&mc->fax.v29rx.logging, mc->len);
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369 span_log_bump_samples(&mc->fax.logging, mc->len);
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370
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371 if (log_audio)
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372 {
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373 for (k = 0; k < mc->len; k++)
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374 out_amp[2*k + j] = mc->amp[k];
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375 }
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376 if (machines[j ^ 1].len < SAMPLES_PER_CHUNK)
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377 memset(machines[j ^ 1].amp + machines[j ^ 1].len, 0, sizeof(int16_t)*(SAMPLES_PER_CHUNK - machines[j ^ 1].len));
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378 if (use_line_hits)
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379 {
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|
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380 /* TODO: This applied very crude line hits. improve it */
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|
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381 if (mc->fax.t30_state.state == 22)
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|
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382 {
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383 if (++mc->error_delay == 100)
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384 {
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385 fprintf(stderr, "HIT %d!\n", j);
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386 mc->error_delay = 0;
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387 for (k = 0; k < 5; k++)
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388 mc->amp[k] = 0;
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389 }
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390 }
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391 }
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392 if (fax_rx(&mc->fax, machines[j ^ 1].amp, SAMPLES_PER_CHUNK))
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393 break;
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394 if (!mc->done)
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395 alldone = FALSE;
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|
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396 }
|
|
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397
|
|
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398 if (log_audio)
|
|
|
399 {
|
|
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400 outframes = afWriteFrames(wave_handle, AF_DEFAULT_TRACK, out_amp, SAMPLES_PER_CHUNK);
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401 if (outframes != SAMPLES_PER_CHUNK)
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402 break;
|
|
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403 }
|
|
|
404
|
|
|
405 if (alldone || j < FAX_MACHINES)
|
|
|
406 break;
|
|
|
407 }
|
|
|
408 for (j = 0; j < FAX_MACHINES; j++)
|
|
|
409 {
|
|
|
410 mc = &machines[j];
|
|
|
411 fax_release(&mc->fax);
|
|
|
412 }
|
|
|
413 if (log_audio)
|
|
|
414 {
|
|
|
415 if (afCloseFile(wave_handle))
|
|
|
416 {
|
|
|
417 fprintf(stderr, " Cannot close wave file '%s'\n", OUTPUT_FILE_NAME_WAVE);
|
|
|
418 exit(2);
|
|
|
419 }
|
|
|
420 afFreeFileSetup(filesetup);
|
|
|
421 }
|
|
|
422 if (input_audio_file_name)
|
|
|
423 {
|
|
|
424 if (afCloseFile(input_wave_handle))
|
|
|
425 {
|
|
|
426 fprintf(stderr, " Cannot close wave file '%s'\n", input_audio_file_name);
|
|
|
427 exit(2);
|
|
|
428 }
|
|
|
429 afFreeFileSetup(filesetup);
|
|
|
430 }
|
|
|
431 return 0;
|
|
|
432 }
|
|
|
433 /*- End of function --------------------------------------------------------*/
|
|
|
434 /*- End of file ------------------------------------------------------------*/
|
