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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 * g722_tests.c - Test G.722 encode and decode.
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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) 2005 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: g722_tests.c,v 1.17 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 g722_tests_page G.722 tests
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31 \section g722_tests_page_sec_1 What does it do?
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32 This modules implements two sets of tests:
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33 - The tests defined in the G.722 specification, using the test data files supplied
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34 with the specification.
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35 - A generally audio quality test, consisting of compressing and decompressing a speeech
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36 file for audible comparison.
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37
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38 The speech file should be recorded at 16 bits/sample, 16000 samples/second, and named
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39 "pre_g722.wav".
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40
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41 The ITU tests use the codec in a special mode, in which the QMFs, which split and recombine the
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42 sub-bands, are disabled. This means they do not test 100% of the codec. This is the reason for
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43 including the additional listening test.
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44
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45 \section g722_tests_page_sec_2 How is it used?
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46 To perform the tests in the G.722 specification you need to obtain the test data files from the
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47 specification. These are copyright material, and so cannot be distributed with spandsp.
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48
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49 The files, containing test vectors, which are supplied with the G.722 specification, should be
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50 copied to itutests/g722. The ITU tests can then be run by executing g722_tests without
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51 any parameters.
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52
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53 To perform a general audio quality test, g722_tests should be run with a parameter specifying
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54 the required bit rate for compression. The valid parameters are "-48", "-56", and "-64".
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55 The file ../localtests/short_wb_voice.wav will be compressed to the specified bit rate, decompressed,
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56 and the resulting audio stored in post_g722.wav.
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57 */
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58
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59 #ifdef HAVE_CONFIG_H
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60 #include <config.h>
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61 #endif
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62
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63 #include <stdlib.h>
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64 #include <unistd.h>
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65 #include <stdio.h>
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66 #include <fcntl.h>
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67 #include <inttypes.h>
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68 #include <memory.h>
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69 #include <stdlib.h>
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70 #if defined(HAVE_TGMATH_H)
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71 #include <tgmath.h>
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72 #endif
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73 #if defined(HAVE_MATH_H)
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74 #include <math.h>
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75 #endif
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76 #include <audiofile.h>
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77 #include <ctype.h>
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78 #include <tiffio.h>
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79
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80 #include "spandsp.h"
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81
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82 #define G722_SAMPLE_RATE 16000
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83
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84 #define BLOCK_LEN 320
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85
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86 #define MAX_TEST_VECTOR_LEN 40000
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87
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88 #define TESTDATA_DIR "../itutests/g722/"
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89
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90 #define EIGHTK_IN_FILE_NAME "../localtests/short_nb_voice.wav"
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91 #define IN_FILE_NAME "../localtests/short_wb_voice.wav"
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92 #define OUT_FILE_NAME "post_g722.wav"
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93
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94 #if 0
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95 static const char *itu_test_files[] =
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96 {
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97 TESTDATA_DIR "T1C1.XMT", /* 69973 bytes */
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98 TESTDATA_DIR "T1C2.XMT", /* 3605 bytes */
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99 TESTDATA_DIR "T1D3.COD", /* 69973 bytes */
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100
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101 TESTDATA_DIR "T2R1.COD", /* 69973 bytes */
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102 TESTDATA_DIR "T2R2.COD", /* 3605 bytes */
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103
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104 TESTDATA_DIR "T3L1.RC1", /* 69973 bytes */
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105 TESTDATA_DIR "T3L1.RC2", /* 69973 bytes */
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106 TESTDATA_DIR "T3L1.RC3", /* 69973 bytes */
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107 TESTDATA_DIR "T3H1.RC0", /* 69973 bytes */
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108 TESTDATA_DIR "T3L2.RC1", /* 3605 bytes */
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109 TESTDATA_DIR "T3L2.RC2", /* 3605 bytes */
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110 TESTDATA_DIR "T3L2.RC3", /* 3605 bytes */
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111 TESTDATA_DIR "T3H2.RC0", /* 3605 bytes */
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112 TESTDATA_DIR "T3L3.RC1", /* 69973 bytes */
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113 TESTDATA_DIR "T3L3.RC2", /* 69973 bytes */
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114 TESTDATA_DIR "T3L3.RC3", /* 69973 bytes */
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115 TESTDATA_DIR "T3H3.RC0" /* 69973 bytes */
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116 };
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117 #endif
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118
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119 static const char *encode_test_files[] =
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120 {
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121 TESTDATA_DIR "T1C1.XMT", TESTDATA_DIR "T2R1.COD",
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122 TESTDATA_DIR "T1C2.XMT", TESTDATA_DIR "T2R2.COD",
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123 NULL
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124 };
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125
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126 static const char *decode_test_files[] =
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127 {
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128 TESTDATA_DIR "T2R1.COD",
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129 TESTDATA_DIR "T3L1.RC1",
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130 TESTDATA_DIR "T3L1.RC2",
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131 TESTDATA_DIR "T3L1.RC3",
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132 TESTDATA_DIR "T3H1.RC0",
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133
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134 TESTDATA_DIR "T2R2.COD",
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135 TESTDATA_DIR "T3L2.RC1",
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136 TESTDATA_DIR "T3L2.RC2",
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137 TESTDATA_DIR "T3L2.RC3",
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138 TESTDATA_DIR "T3H2.RC0",
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139
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140 TESTDATA_DIR "T1D3.COD",
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141 TESTDATA_DIR "T3L3.RC1",
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142 TESTDATA_DIR "T3L3.RC2",
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143 TESTDATA_DIR "T3L3.RC3",
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144 TESTDATA_DIR "T3H3.RC0",
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145
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146 NULL
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147 };
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148
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149 int16_t itu_data[MAX_TEST_VECTOR_LEN];
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150 uint16_t itu_ref[MAX_TEST_VECTOR_LEN];
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151 uint16_t itu_ref_upper[MAX_TEST_VECTOR_LEN];
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152 uint8_t compressed[MAX_TEST_VECTOR_LEN];
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153 int16_t decompressed[MAX_TEST_VECTOR_LEN];
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154
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155 static int hex_get(char *s)
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156 {
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157 int i;
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158 int value;
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159 int x;
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160
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161 for (value = i = 0; i < 4; i++)
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162 {
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163 x = *s++ - 0x30;
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164 if (x > 9)
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165 x -= 0x07;
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166 if (x > 15)
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167 x -= 0x20;
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168 if (x < 0 || x > 15)
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169 return -1;
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170 value <<= 4;
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171 value |= x;
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172 }
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173 return value;
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174 }
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175 /*- End of function --------------------------------------------------------*/
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176
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177 static int get_vector(FILE *file, uint16_t vec[])
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178 {
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179 char buf[132 + 1];
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180 char *s;
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181 int i;
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182 int value;
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183
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184 while (fgets(buf, 133, file))
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185 {
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186 if (buf[0] == '/' && buf[1] == '*')
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187 continue;
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188 s = buf;
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189 i = 0;
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190 while ((value = hex_get(s)) >= 0)
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191 {
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192 vec[i++] = value;
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193 s += 4;
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194 }
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195 return i;
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196 }
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197 return 0;
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198 }
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199 /*- End of function --------------------------------------------------------*/
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200
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201 static int get_test_vector(const char *file, uint16_t buf[], int max_len)
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202 {
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203 int octets;
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204 int i;
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205 FILE *infile;
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206
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207 if ((infile = fopen(file, "r")) == NULL)
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208 {
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209 fprintf(stderr, " Failed to open '%s'\n", file);
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210 exit(2);
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211 }
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212 octets = 0;
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213 while ((i = get_vector(infile, buf + octets)) > 0)
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214 octets += i;
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215 fclose(infile);
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216 return octets;
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217 }
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218 /*- End of function --------------------------------------------------------*/
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219
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220 int main(int argc, char *argv[])
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221 {
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222 g722_encode_state_t enc_state;
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223 g722_decode_state_t dec_state;
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224 int len;
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225 int len_comp;
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226 int len_comp_upper;
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227 int len_data;
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228 int len2;
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229 int len3;
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230 int i;
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231 int j;
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232 int k;
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233 int file;
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234 AFfilehandle inhandle;
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235 AFfilehandle outhandle;
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236 AFfilesetup filesetup;
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237 int outframes;
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238 int samples;
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239 int mode;
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240 int itutests;
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241 int bit_rate;
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242 int eight_k_in;
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243 int eight_k_out;
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244 float x;
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245 int16_t indata[BLOCK_LEN];
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246 int16_t outdata[BLOCK_LEN];
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247 uint8_t adpcmdata[BLOCK_LEN];
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248
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249 i = 1;
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250 bit_rate = 64000;
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251 eight_k_in = FALSE;
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252 eight_k_out = FALSE;
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253 itutests = TRUE;
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254 while (argc > i)
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255 {
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256 if (strcmp(argv[i], "-48") == 0)
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257 {
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258 bit_rate = 48000;
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259 itutests = FALSE;
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260 i++;
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261 }
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262 else if (strcmp(argv[i], "-56") == 0)
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263 {
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264 bit_rate = 56000;
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265 itutests = FALSE;
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266 i++;
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267 }
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268 else if (strcmp(argv[i], "-64") == 0)
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269 {
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270 bit_rate = 64000;
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271 itutests = FALSE;
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272 i++;
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273 }
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274 else if (strcmp(argv[i], "-8k8k") == 0)
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275 {
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276 eight_k_in = TRUE;
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277 eight_k_out = TRUE;
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278 i++;
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279 }
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280 else if (strcmp(argv[i], "-8k16k") == 0)
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281 {
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282 eight_k_in = TRUE;
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283 eight_k_out = FALSE;
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284 i++;
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285 }
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286 else if (strcmp(argv[i], "-16k8k") == 0)
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287 {
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288 eight_k_in = FALSE;
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289 eight_k_out = TRUE;
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290 i++;
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291 }
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292 else if (strcmp(argv[i], "-16k16k") == 0)
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293 {
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294 eight_k_in = FALSE;
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295 eight_k_out = FALSE;
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296 i++;
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297 }
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298 else
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299 {
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300 fprintf(stderr, "Unknown parameter %s specified.\n", argv[i]);
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301 exit(2);
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302 }
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303 }
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304
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305 if (itutests)
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306 {
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307 /* ITU G.722 encode tests, using configuration 1. The QMF is bypassed */
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308 for (file = 0; encode_test_files[file]; file += 2)
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309 {
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310 printf("Testing %s -> %s\n", encode_test_files[file], encode_test_files[file + 1]);
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311
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312 /* Get the input data */
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313 len_data = get_test_vector(encode_test_files[file], (uint16_t *) itu_data, MAX_TEST_VECTOR_LEN);
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314
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315 /* Get the reference output data */
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316 len_comp = get_test_vector(encode_test_files[file + 1], itu_ref, MAX_TEST_VECTOR_LEN);
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317
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318 /* Process the input data */
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319 /* Skip the reset stuff at each end of the data */
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320 for (i = 0; i < len_data; i++)
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321 {
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322 if ((itu_data[i] & 1) == 0)
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323 break;
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324 }
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325 for (j = i; j < len_data; j++)
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326 {
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327 if ((itu_data[j] & 1))
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328 break;
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329 }
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330 len = j - i;
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331 g722_encode_init(&enc_state, 64000, FALSE);
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332 enc_state.itu_test_mode = TRUE;
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333 len2 = g722_encode(&enc_state, compressed, itu_data + i, len);
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334
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335 /* Check the result against the ITU's reference output data */
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336 j = 0;
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337 for (k = 0; k < len2; k++)
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338 {
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339 if ((compressed[k] & 0xFF) != ((itu_ref[k + i] >> 8) & 0xFF))
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340 {
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341 printf(">>> %6d %4x %4x\n", k, compressed[k] & 0xFF, itu_ref[k + i] & 0xFFFF);
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342 j++;
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343 }
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344 }
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345 printf("%d bad samples, out of %d/%d samples\n", j, len, len_data);
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346 if (j)
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347 {
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348 printf("Test failed\n");
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349 exit(2);
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350 }
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351 printf("Test passed\n");
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352 }
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353
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354 /* ITU G.722 decode tests, using configuration 2. The QMF is bypassed */
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355 /* Run each of the tests for each of the modes - 48kbps, 56kbps and 64kbps. */
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356 for (mode = 1; mode <= 3; mode++)
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357 {
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358 for (file = 0; decode_test_files[file]; file += 5)
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359 {
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360 printf("Testing mode %d, %s -> %s + %s\n",
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361 mode,
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362 decode_test_files[file],
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363 decode_test_files[file + mode],
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364 decode_test_files[file + 4]);
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365
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366 /* Get the input data */
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367 len_data = get_test_vector(decode_test_files[file], (uint16_t *) itu_data, MAX_TEST_VECTOR_LEN);
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368
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369 /* Get the lower reference output data */
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370 len_comp = get_test_vector(decode_test_files[file + mode], itu_ref, MAX_TEST_VECTOR_LEN);
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371
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372 /* Get the upper reference output data */
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373 len_comp_upper = get_test_vector(decode_test_files[file + 4], itu_ref_upper, MAX_TEST_VECTOR_LEN);
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374
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375 /* Process the input data */
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376 /* Skip the reset stuff at each end of the data */
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377 for (i = 0; i < len_data; i++)
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378 {
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379 if ((itu_data[i] & 1) == 0)
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380 break;
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381 }
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382 for (j = i; j < len_data; j++)
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383 {
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384 if ((itu_data[j] & 1))
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385 break;
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386 }
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387 len = j - i;
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388 for (k = 0; k < len; k++)
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389 compressed[k] = itu_data[k + i] >> ((mode == 3) ? 10 : (mode == 2) ? 9 : 8);
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390
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391 g722_decode_init(&dec_state, (mode == 3) ? 48000 : (mode == 2) ? 56000 : 64000, FALSE);
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392 dec_state.itu_test_mode = TRUE;
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393 len2 = g722_decode(&dec_state, decompressed, compressed, len);
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394
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395 /* Check the result against the ITU's reference output data */
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396 j = 0;
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397 for (k = 0; k < len2; k += 2)
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398 {
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399 if ((decompressed[k] & 0xFFFF) != (itu_ref[(k >> 1) + i] & 0xFFFF)
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400 ||
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401 (decompressed[k + 1] & 0xFFFF) != (itu_ref_upper[(k >> 1) + i] & 0xFFFF))
|
|
|
402 {
|
|
|
403 printf(">>> %6d %4x %4x %4x %4x\n", k >> 1, decompressed[k] & 0xFFFF, decompressed[k + 1] & 0xFFFF, itu_ref[(k >> 1) + i] & 0xFFFF, itu_ref_upper[(k >> 1) + i] & 0xFFFF);
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|
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404 j++;
|
|
|
405 }
|
|
|
406 }
|
|
|
407 printf("%d bad samples, out of %d/%d samples\n", j, len, len_data);
|
|
|
408 if (j)
|
|
|
409 {
|
|
|
410 printf("Test failed\n");
|
|
|
411 exit(2);
|
|
|
412 }
|
|
|
413 printf("Test passed\n");
|
|
|
414 }
|
|
|
415 }
|
|
|
416
|
|
|
417 printf("Tests passed.\n");
|
|
|
418 }
|
|
|
419 else
|
|
|
420 {
|
|
|
421 if (eight_k_in)
|
|
|
422 {
|
|
|
423 if ((inhandle = afOpenFile(EIGHTK_IN_FILE_NAME, "r", NULL)) == AF_NULL_FILEHANDLE)
|
|
|
424 {
|
|
|
425 fprintf(stderr, " Cannot open wave file '%s'\n", EIGHTK_IN_FILE_NAME);
|
|
|
426 exit(2);
|
|
|
427 }
|
|
|
428 if ((x = afGetFrameSize(inhandle, AF_DEFAULT_TRACK, 1)) != 2.0)
|
|
|
429 {
|
|
|
430 printf(" Unexpected frame size in wave file '%s'\n", EIGHTK_IN_FILE_NAME);
|
|
|
431 exit(2);
|
|
|
432 }
|
|
|
433 if ((x = afGetRate(inhandle, AF_DEFAULT_TRACK)) != (float) SAMPLE_RATE)
|
|
|
434 {
|
|
|
435 printf(" Unexpected sample rate %f in wave file '%s'\n", x, EIGHTK_IN_FILE_NAME);
|
|
|
436 exit(2);
|
|
|
437 }
|
|
|
438 if ((x = afGetChannels(inhandle, AF_DEFAULT_TRACK)) != 1.0)
|
|
|
439 {
|
|
|
440 printf(" Unexpected number of channels in wave file '%s'\n", EIGHTK_IN_FILE_NAME);
|
|
|
441 exit(2);
|
|
|
442 }
|
|
|
443 }
|
|
|
444 else
|
|
|
445 {
|
|
|
446 if ((inhandle = afOpenFile(IN_FILE_NAME, "r", NULL)) == AF_NULL_FILEHANDLE)
|
|
|
447 {
|
|
|
448 fprintf(stderr, " Cannot open wave file '%s'\n", IN_FILE_NAME);
|
|
|
449 exit(2);
|
|
|
450 }
|
|
|
451 if ((x = afGetFrameSize(inhandle, AF_DEFAULT_TRACK, 1)) != 2.0)
|
|
|
452 {
|
|
|
453 printf(" Unexpected frame size in wave file '%s'\n", IN_FILE_NAME);
|
|
|
454 exit(2);
|
|
|
455 }
|
|
|
456 if ((x = afGetRate(inhandle, AF_DEFAULT_TRACK)) != (float) G722_SAMPLE_RATE)
|
|
|
457 {
|
|
|
458 printf(" Unexpected sample rate %f in wave file '%s'\n", x, IN_FILE_NAME);
|
|
|
459 exit(2);
|
|
|
460 }
|
|
|
461 if ((x = afGetChannels(inhandle, AF_DEFAULT_TRACK)) != 1.0)
|
|
|
462 {
|
|
|
463 printf(" Unexpected number of channels in wave file '%s'\n", IN_FILE_NAME);
|
|
|
464 exit(2);
|
|
|
465 }
|
|
|
466 }
|
|
|
467
|
|
|
468 if ((filesetup = afNewFileSetup()) == AF_NULL_FILESETUP)
|
|
|
469 {
|
|
|
470 fprintf(stderr, " Failed to create file setup\n");
|
|
|
471 exit(2);
|
|
|
472 }
|
|
|
473 afInitSampleFormat(filesetup, AF_DEFAULT_TRACK, AF_SAMPFMT_TWOSCOMP, 16);
|
|
|
474 if (eight_k_out)
|
|
|
475 afInitRate(filesetup, AF_DEFAULT_TRACK, (float) SAMPLE_RATE);
|
|
|
476 else
|
|
|
477 afInitRate(filesetup, AF_DEFAULT_TRACK, (float) G722_SAMPLE_RATE);
|
|
|
478 afInitFileFormat(filesetup, AF_FILE_WAVE);
|
|
|
479 afInitChannels(filesetup, AF_DEFAULT_TRACK, 1);
|
|
|
480 if ((outhandle = afOpenFile(OUT_FILE_NAME, "w", filesetup)) == AF_NULL_FILEHANDLE)
|
|
|
481 {
|
|
|
482 fprintf(stderr, " Cannot create wave file '%s'\n", OUT_FILE_NAME);
|
|
|
483 exit(2);
|
|
|
484 }
|
|
|
485 if (eight_k_in)
|
|
|
486 g722_encode_init(&enc_state, bit_rate, G722_PACKED | G722_SAMPLE_RATE_8000);
|
|
|
487 else
|
|
|
488 g722_encode_init(&enc_state, bit_rate, G722_PACKED);
|
|
|
489 if (eight_k_out)
|
|
|
490 g722_decode_init(&dec_state, bit_rate, G722_PACKED | G722_SAMPLE_RATE_8000);
|
|
|
491 else
|
|
|
492 g722_decode_init(&dec_state, bit_rate, G722_PACKED);
|
|
|
493 for (;;)
|
|
|
494 {
|
|
|
495 samples = afReadFrames(inhandle,
|
|
|
496 AF_DEFAULT_TRACK,
|
|
|
497 indata,
|
|
|
498 BLOCK_LEN);
|
|
|
499 if (samples <= 0)
|
|
|
500 break;
|
|
|
501 len2 = g722_encode(&enc_state, adpcmdata, indata, samples);
|
|
|
502 len3 = g722_decode(&dec_state, outdata, adpcmdata, len2);
|
|
|
503 outframes = afWriteFrames(outhandle,
|
|
|
504 AF_DEFAULT_TRACK,
|
|
|
505 outdata,
|
|
|
506 len3);
|
|
|
507 if (outframes != len3)
|
|
|
508 {
|
|
|
509 fprintf(stderr, " Error writing wave file\n");
|
|
|
510 exit(2);
|
|
|
511 }
|
|
|
512 }
|
|
|
513 if (afCloseFile(inhandle))
|
|
|
514 {
|
|
|
515 fprintf(stderr, " Cannot close wave file '%s'\n", IN_FILE_NAME);
|
|
|
516 exit(2);
|
|
|
517 }
|
|
|
518 if (afCloseFile(outhandle))
|
|
|
519 {
|
|
|
520 fprintf(stderr, " Cannot close wave file '%s'\n", OUT_FILE_NAME);
|
|
|
521 exit(2);
|
|
|
522 }
|
|
|
523 afFreeFileSetup(filesetup);
|
|
|
524
|
|
|
525 printf("'%s' transcoded to '%s' at %dbps.\n", IN_FILE_NAME, OUT_FILE_NAME, bit_rate);
|
|
|
526 }
|
|
|
527 return 0;
|
|
|
528 }
|
|
|
529 /*- End of function --------------------------------------------------------*/
|
|
|
530 /*- End of file ------------------------------------------------------------*/
|
