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1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
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2
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3 /*
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4 Sonic Visualiser
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5 An audio file viewer and annotation editor.
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6 Centre for Digital Music, Queen Mary, University of London.
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7
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8 This program is free software; you can redistribute it and/or
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9 modify it under the terms of the GNU General Public License as
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10 published by the Free Software Foundation; either version 2 of the
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11 License, or (at your option) any later version. See the file
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12 COPYING included with this distribution for more information.
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13 */
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14
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15 #ifndef TEST_AUDIO_ENCODINGS_H
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16 #define TEST_AUDIO_ENCODINGS_H
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17
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18 // Quick tests for filename encodings and encoding of ID3 data. Not a
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19 // test of audio codecs.
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20
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21 #include "../AudioFileReaderFactory.h"
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22 #include "../AudioFileReader.h"
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23 #include "../WavFileWriter.h"
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24
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25 #include <cmath>
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26
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27 #include <QObject>
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28 #include <QtTest>
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29 #include <QDir>
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30
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31 #include <iostream>
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32
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33 using namespace std;
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34
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35 const char utf8_name_cdp_1[] = "Caf\303\251 de Paris";
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36 const char utf8_name_cdp_2[] = "Caf\303\251 de \351\207\215\345\272\206";
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37 const char utf8_name_tsprk[] = "T\303\253mple of Sp\303\266rks";
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38 const char utf8_name_sprkt[] = "\343\202\271\343\203\235\343\203\274\343\202\257\343\201\256\345\257\272\351\231\242";
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39
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40 // Mapping between filename and expected title metadata field
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41 static const char *mapping[][2] = {
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42 { "id3v2-iso-8859-1", utf8_name_cdp_1 },
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43 { "id3v2-ucs-2", utf8_name_cdp_2 },
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44 { utf8_name_tsprk, utf8_name_tsprk },
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45 { utf8_name_sprkt, utf8_name_sprkt },
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46 };
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47 static const int mappingCount = 4;
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48
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49 class EncodingTest : public QObject
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50 {
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51 Q_OBJECT
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52
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53 private:
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54 QString testDirBase;
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55 QString encodingDir;
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56 QString outDir;
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57
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58 public:
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59 EncodingTest(QString base) {
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60 if (base == "") {
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61 base = "svcore/data/fileio/test";
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62 }
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63 testDirBase = base;
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64 encodingDir = base + "/encodings";
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65 outDir = base + "/outfiles";
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66 }
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67
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68 private:
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69 const char *strOf(QString s) {
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70 return strdup(s.toLocal8Bit().data());
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71 }
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72
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73 void addAudioFiles() {
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74 QTest::addColumn<QString>("audiofile");
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75 QStringList files = QDir(encodingDir).entryList(QDir::Files);
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76 foreach (QString filename, files) {
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77 QTest::newRow(strOf(filename)) << filename;
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78 }
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79 }
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80
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81 private slots:
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82 void init()
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83 {
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84 if (!QDir(encodingDir).exists()) {
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85 cerr << "ERROR: Audio encoding file directory \"" << encodingDir << "\" does not exist" << endl;
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86 QVERIFY2(QDir(encodingDir).exists(), "Audio encoding file directory not found");
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87 }
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88 if (!QDir(outDir).exists() && !QDir().mkpath(outDir)) {
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89 cerr << "ERROR: Audio out directory \"" << outDir << "\" does not exist and could not be created" << endl;
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90 QVERIFY2(QDir(outDir).exists(), "Audio out directory not found and could not be created");
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91 }
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92 }
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93
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94 void readAudio_data() {
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95 addAudioFiles();
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96 }
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97
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98 void readAudio() {
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99
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100 // Ensure that we can open all the files
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101
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102 QFETCH(QString, audiofile);
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103
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104 AudioFileReaderFactory::Parameters params;
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105 AudioFileReader *reader =
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106 AudioFileReaderFactory::createReader
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107 (encodingDir + "/" + audiofile, params);
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108
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109 QVERIFY(reader != nullptr);
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110
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111 delete reader;
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112 }
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113
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114 void readMetadata_data() {
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115 addAudioFiles();
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116 }
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117
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118 void readMetadata() {
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119
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120 // All files other than WAVs should have title metadata; check
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121 // that the title matches whatever is in our mapping structure
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122 // defined at the top
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123
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124 QFETCH(QString, audiofile);
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125
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126 AudioFileReaderFactory::Parameters params;
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127 AudioFileReader *reader =
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128 AudioFileReaderFactory::createReader
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129 (encodingDir + "/" + audiofile, params);
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130
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131 QVERIFY(reader != nullptr);
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132
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133 QStringList fileAndExt = audiofile.split(".");
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134 QString file = fileAndExt[0];
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135 QString extension = fileAndExt[1];
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136
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137 if (extension == "wav") {
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138
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139 // Nothing
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140
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141 delete reader;
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142
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143 } else {
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144
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145 #if (!defined (HAVE_OGGZ) || !defined(HAVE_FISHSOUND))
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146 if (extension == "ogg") {
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147 QSKIP("Lack native Ogg Vorbis reader, so won't be getting metadata");
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148 }
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149 #endif
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150
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151 auto blah = reader->getInterleavedFrames(0, 10);
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152
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153 QString title = reader->getTitle();
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154 QVERIFY(title != QString());
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155
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156 delete reader;
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157
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158 bool found = false;
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159 for (int m = 0; m < mappingCount; ++m) {
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160 if (file == QString::fromUtf8(mapping[m][0])) {
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161 found = true;
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162 QString expected = QString::fromUtf8(mapping[m][1]);
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163 if (title != expected) {
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164 cerr << "Title does not match expected: codepoints are" << endl;
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165 cerr << "Title (" << title.length() << "ch): ";
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166 for (int i = 0; i < title.length(); ++i) {
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167 cerr << title[i].unicode() << " ";
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168 }
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169 cerr << endl;
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170 cerr << "Expected (" << expected.length() << "ch): ";
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171 for (int i = 0; i < expected.length(); ++i) {
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172 cerr << expected[i].unicode() << " ";
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173 }
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174 cerr << endl;
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175 }
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176 QCOMPARE(title, expected);
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177 break;
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178 }
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179 }
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180
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181 if (!found) {
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182 // Note that this can happen legitimately on Windows,
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183 // where (for annoying VCS-related reasons) the test
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184 // files may have a different filename encoding from
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185 // the expected UTF-16. We check this properly in
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186 // readWriteAudio below, by saving out the file to a
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187 // name matching the metadata
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188 cerr << "Couldn't find filename \""
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189 << file << "\" in title mapping array" << endl;
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190 QSKIP("Couldn't find filename in title mapping array");
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191 }
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192 }
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193 }
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194
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195 void readWriteAudio_data() {
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196 addAudioFiles();
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197 }
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198
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199 void readWriteAudio()
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200 {
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201 // For those files that have title metadata (i.e. all of them
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202 // except the WAVs), read the title metadata and write a wav
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203 // file (of arbitrary content) whose name matches that. Then
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204 // check that we can re-read it. This is intended to exercise
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205 // systems on which the original test filename is miscoded (as
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206 // can happen on Windows).
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207
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208 QFETCH(QString, audiofile);
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209
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210 QStringList fileAndExt = audiofile.split(".");
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211 QString file = fileAndExt[0];
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212 QString extension = fileAndExt[1];
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213
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214 if (extension == "wav") {
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215 return;
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216 }
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217
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218 #if (!defined (HAVE_OGGZ) || !defined(HAVE_FISHSOUND))
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219 if (extension == "ogg") {
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220 QSKIP("Lack native Ogg Vorbis reader, so won't be getting metadata");
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221 }
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222 #endif
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223
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224 AudioFileReaderFactory::Parameters params;
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225 AudioFileReader *reader =
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226 AudioFileReaderFactory::createReader
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227 (encodingDir + "/" + audiofile, params);
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228 QVERIFY(reader != nullptr);
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229
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230 QString title = reader->getTitle();
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231 QVERIFY(title != QString());
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232
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233 for (int useTemporary = 0; useTemporary <= 1; ++useTemporary) {
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234
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235 QString outfile = outDir + "/" + file + ".wav";
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236 WavFileWriter writer(outfile,
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237 reader->getSampleRate(),
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238 1,
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239 useTemporary ?
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240 WavFileWriter::WriteToTemporary :
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241 WavFileWriter::WriteToTarget);
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242
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243 QVERIFY(writer.isOK());
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244
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245 floatvec_t data { 0.0, 1.0, 0.0, -1.0, 0.0, 1.0, 0.0, -1.0 };
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246 const float *samples = data.data();
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247 bool ok = writer.writeSamples(&samples, 8);
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248 QVERIFY(ok);
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249
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250 ok = writer.close();
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251 QVERIFY(ok);
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252
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253 AudioFileReader *rereader =
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254 AudioFileReaderFactory::createReader(outfile, params);
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255 QVERIFY(rereader != nullptr);
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256
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257 floatvec_t readFrames = rereader->getInterleavedFrames(0, 8);
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258 QCOMPARE(readFrames, data);
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259
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260 delete rereader;
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261 }
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262
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263 delete reader;
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264 }
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265 };
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266
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267 #endif
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