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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 This file copyright 2006 Chris Cannam and QMUL.
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8
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9 This program is free software; you can redistribute it and/or
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10 modify it under the terms of the GNU General Public License as
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11 published by the Free Software Foundation; either version 2 of the
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12 License, or (at your option) any later version. See the file
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13 COPYING included with this distribution for more information.
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14 */
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15
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16 #include "FeatureExtractionPluginFactory.h"
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17 #include "PluginIdentifier.h"
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18
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19 #include <vamp-hostsdk/PluginHostAdapter.h>
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20 #include <vamp-hostsdk/PluginWrapper.h>
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21
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22 #include "system/System.h"
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23
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24 #include <QDir>
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25 #include <QFile>
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26 #include <QFileInfo>
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27 #include <QTextStream>
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28
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29 #include <iostream>
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30
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31 #include "base/Profiler.h"
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32
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33 using namespace std;
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34
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35 //#define DEBUG_PLUGIN_SCAN_AND_INSTANTIATE 1
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36
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37 class PluginDeletionNotifyAdapter : public Vamp::HostExt::PluginWrapper {
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38 public:
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39 PluginDeletionNotifyAdapter(Vamp::Plugin *plugin,
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40 FeatureExtractionPluginFactory *factory) :
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41 PluginWrapper(plugin), m_factory(factory) { }
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42 virtual ~PluginDeletionNotifyAdapter();
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43 protected:
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44 FeatureExtractionPluginFactory *m_factory;
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45 };
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46
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47 PluginDeletionNotifyAdapter::~PluginDeletionNotifyAdapter()
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48 {
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49 // see notes in vamp-sdk/hostext/PluginLoader.cpp from which this is drawn
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50 Vamp::Plugin *p = m_plugin;
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51 delete m_plugin;
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52 m_plugin = 0;
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53 // acceptable use after free here, as pluginDeleted uses p only as
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54 // pointer key and does not deref it
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55 if (m_factory) m_factory->pluginDeleted(p);
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56 }
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57
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58 static FeatureExtractionPluginFactory *_nativeInstance = 0;
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59
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60 FeatureExtractionPluginFactory *
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61 FeatureExtractionPluginFactory::instance(QString pluginType)
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62 {
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63 if (pluginType == "vamp") {
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Chris@0
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64 if (!_nativeInstance) {
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65 // SVDEBUG << "FeatureExtractionPluginFactory::instance(" << pluginType// << "): creating new FeatureExtractionPluginFactory" << endl;
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66 _nativeInstance = new FeatureExtractionPluginFactory();
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67 }
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68 return _nativeInstance;
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69 }
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70
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71 else return 0;
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72 }
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73
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74 FeatureExtractionPluginFactory *
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75 FeatureExtractionPluginFactory::instanceFor(QString identifier)
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76 {
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77 QString type, soName, label;
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78 PluginIdentifier::parseIdentifier(identifier, type, soName, label);
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79 return instance(type);
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80 }
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81
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82 vector<QString>
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83 FeatureExtractionPluginFactory::getPluginPath()
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84 {
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85 if (!m_pluginPath.empty()) return m_pluginPath;
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86
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87 vector<string> p = Vamp::PluginHostAdapter::getPluginPath();
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88 for (size_t i = 0; i < p.size(); ++i) m_pluginPath.push_back(p[i].c_str());
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89 return m_pluginPath;
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90 }
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91
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92 vector<QString>
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93 FeatureExtractionPluginFactory::getAllPluginIdentifiers()
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94 {
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95 FeatureExtractionPluginFactory *factory;
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96 vector<QString> rv;
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97
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98 factory = instance("vamp");
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99 if (factory) {
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100 vector<QString> tmp = factory->getPluginIdentifiers();
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101 for (size_t i = 0; i < tmp.size(); ++i) {
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102 // cerr << "identifier: " << tmp[i] << endl;
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103 rv.push_back(tmp[i]);
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104 }
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105 }
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106
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107 // Plugins can change the locale, revert it to default.
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108 RestoreStartupLocale();
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109
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110 return rv;
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111 }
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112
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113 vector<QString>
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114 FeatureExtractionPluginFactory::getPluginCandidateFiles()
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115 {
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116 vector<QString> path = getPluginPath();
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117 vector<QString> candidates;
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118
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119 for (QString dirname : path) {
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120
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121 #ifdef DEBUG_PLUGIN_SCAN_AND_INSTANTIATE
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122 cerr << "FeatureExtractionPluginFactory::getPluginIdentifiers: scanning directory " << dirname << endl;
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123 #endif
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124
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125 QDir pluginDir(dirname, PLUGIN_GLOB,
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126 QDir::Name | QDir::IgnoreCase,
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127 QDir::Files | QDir::Readable);
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128
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129 for (unsigned int j = 0; j < pluginDir.count(); ++j) {
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130 QString soname = pluginDir.filePath(pluginDir[j]);
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131 candidates.push_back(soname);
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132 }
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133 }
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134
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135 return candidates;
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136 }
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137
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138 vector<QString>
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139 FeatureExtractionPluginFactory::winnowPluginCandidates(vector<QString> candidates,
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140 QString &warningMessage)
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141 {
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142 vector<QString> good, bad;
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143 vector<PluginLoadStatus> badStatuses;
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144
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145 for (QString c: candidates) {
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146
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147 PluginLoadStatus status =
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148 TestPluginLoadability(c, "vampGetPluginDescriptor");
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149
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150 if (status == PluginLoadOK) {
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151 good.push_back(c);
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152 } else if (status == UnknownPluginLoadStatus) {
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153 cerr << "WARNING: Unknown load status for plugin candidate \""
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154 << c << "\", continuing" << endl;
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155 good.push_back(c);
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156 } else {
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157 bad.push_back(c);
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158 badStatuses.push_back(status);
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159 }
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160 }
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161
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162 if (!bad.empty()) {
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163 warningMessage =
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164 QObject::tr("<b>Failed to load plugins</b>"
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165 "<p>Failed to load one or more plugin libraries:</p>\n");
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166 warningMessage += "<ul>";
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167 for (int i = 0; in_range_for(bad, i); ++i) {
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168 QString m;
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169 if (badStatuses[i] == PluginLoadFailedToLoadLibrary) {
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170 m = QObject::tr("Failed to load library");
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171 } else if (badStatuses[i] == PluginLoadFailedToFindDescriptor) {
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172 m = QObject::tr("Failed to query plugins from library after loading");
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173 } else if (badStatuses[i] == PluginLoadFailedElsewhere) {
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174 m = QObject::tr("Unknown failure");
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175 } else {
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176 m = QObject::tr("Success: internal error?");
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177 }
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178 warningMessage += QString("<li>%1 (%2)</li>\n")
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179 .arg(bad[i])
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180 .arg(m);
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181 }
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182 warningMessage += "</ul>";
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183 }
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184 return good;
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185 }
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186
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187 vector<QString>
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188 FeatureExtractionPluginFactory::getPluginIdentifiers()
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189 {
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190 Profiler profiler("FeatureExtractionPluginFactory::getPluginIdentifiers");
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191
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192 vector<QString> rv;
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193 vector<QString> candidates = winnowPluginCandidates(getPluginCandidateFiles(),
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194 m_pluginScanError);
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195
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196 for (QString soname : candidates) {
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197
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198 void *libraryHandle = DLOPEN(soname, RTLD_LAZY | RTLD_LOCAL);
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199
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200 if (!libraryHandle) {
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201 cerr << "WARNING: FeatureExtractionPluginFactory::getPluginIdentifiers: Failed to load library " << soname << ": " << DLERROR() << endl;
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202 continue;
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203 }
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204
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205 VampGetPluginDescriptorFunction fn = (VampGetPluginDescriptorFunction)
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206 DLSYM(libraryHandle, "vampGetPluginDescriptor");
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207
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208 if (!fn) {
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209 cerr << "WARNING: FeatureExtractionPluginFactory::getPluginIdentifiers: No descriptor function in " << soname << endl;
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210 if (DLCLOSE(libraryHandle) != 0) {
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211 cerr << "WARNING: FeatureExtractionPluginFactory::getPluginIdentifiers: Failed to unload library " << soname << endl;
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212 }
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213 continue;
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214 }
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215
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216 #ifdef DEBUG_PLUGIN_SCAN_AND_INSTANTIATE
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217 cerr << "FeatureExtractionPluginFactory::getPluginIdentifiers: Vamp descriptor found" << endl;
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218 #endif
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219
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220 const VampPluginDescriptor *descriptor = 0;
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221 int index = 0;
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222
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223 map<string, int> known;
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224 bool ok = true;
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225
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226 while ((descriptor = fn(VAMP_API_VERSION, index))) {
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227
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228 if (known.find(descriptor->identifier) != known.end()) {
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229 cerr << "WARNING: FeatureExtractionPluginFactory::getPluginIdentifiers: Plugin library "
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230 << soname
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231 << " returns the same plugin identifier \""
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232 << descriptor->identifier << "\" at indices "
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233 << known[descriptor->identifier] << " and "
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234 << index << endl;
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235 cerr << "FeatureExtractionPluginFactory::getPluginIdentifiers: Avoiding this library (obsolete API?)" << endl;
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236 ok = false;
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237 break;
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238 } else {
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239 known[descriptor->identifier] = index;
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240 }
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241
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242 ++index;
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243 }
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244
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245 if (ok) {
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246
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247 index = 0;
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248
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249 while ((descriptor = fn(VAMP_API_VERSION, index))) {
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250
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251 QString id = PluginIdentifier::createIdentifier
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252 ("vamp", soname, descriptor->identifier);
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253 rv.push_back(id);
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254 #ifdef DEBUG_PLUGIN_SCAN_AND_INSTANTIATE
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255 cerr << "FeatureExtractionPluginFactory::getPluginIdentifiers: Found plugin id " << id << " at index " << index << endl;
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256 #endif
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257 ++index;
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258 }
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259 }
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260
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261 if (DLCLOSE(libraryHandle) != 0) {
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262 cerr << "WARNING: FeatureExtractionPluginFactory::getPluginIdentifiers: Failed to unload library " << soname << endl;
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263 }
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Chris@66
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264 }
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265
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266 generateTaxonomy();
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267
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268 return rv;
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269 }
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270
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271 QString
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272 FeatureExtractionPluginFactory::findPluginFile(QString soname, QString inDir)
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273 {
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274 QString file = "";
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275
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276 #ifdef DEBUG_PLUGIN_SCAN_AND_INSTANTIATE
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277 cerr << "FeatureExtractionPluginFactory::findPluginFile(\""
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278 << soname << "\", \"" << inDir << "\")"
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279 << endl;
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280 #endif
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281
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282 if (inDir != "") {
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283
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284 QDir dir(inDir, PLUGIN_GLOB,
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285 QDir::Name | QDir::IgnoreCase,
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286 QDir::Files | QDir::Readable);
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287 if (!dir.exists()) return "";
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288
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289 file = dir.filePath(QFileInfo(soname).fileName());
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290
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291 if (QFileInfo(file).exists() && QFileInfo(file).isFile()) {
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292
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293 #ifdef DEBUG_PLUGIN_SCAN_AND_INSTANTIATE
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294 cerr << "FeatureExtractionPluginFactory::findPluginFile: "
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295 << "found trivially at " << file << endl;
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Chris@249
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296 #endif
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297
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298 return file;
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299 }
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300
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301 for (unsigned int j = 0; j < dir.count(); ++j) {
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302 file = dir.filePath(dir[j]);
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303 if (QFileInfo(file).baseName() == QFileInfo(soname).baseName()) {
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304
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Chris@249
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305 #ifdef DEBUG_PLUGIN_SCAN_AND_INSTANTIATE
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Chris@1140
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306 cerr << "FeatureExtractionPluginFactory::findPluginFile: "
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307 << "found \"" << soname << "\" at " << file << endl;
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308 #endif
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309
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310 return file;
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311 }
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Chris@66
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312 }
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313
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314 #ifdef DEBUG_PLUGIN_SCAN_AND_INSTANTIATE
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315 cerr << "FeatureExtractionPluginFactory::findPluginFile (with dir): "
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Chris@687
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316 << "not found" << endl;
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Chris@249
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317 #endif
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318
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Chris@66
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319 return "";
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320
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Chris@66
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321 } else {
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322
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323 QFileInfo fi(soname);
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324
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Chris@249
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325 if (fi.isAbsolute() && fi.exists() && fi.isFile()) {
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326 #ifdef DEBUG_PLUGIN_SCAN_AND_INSTANTIATE
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Chris@1140
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327 cerr << "FeatureExtractionPluginFactory::findPluginFile: "
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Chris@687
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328 << "found trivially at " << soname << endl;
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Chris@249
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329 #endif
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Chris@249
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330 return soname;
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Chris@249
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331 }
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332
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Chris@66
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333 if (fi.isAbsolute() && fi.absolutePath() != "") {
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334 file = findPluginFile(soname, fi.absolutePath());
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Chris@66
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335 if (file != "") return file;
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Chris@66
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336 }
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Chris@66
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337
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Chris@1164
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338 vector<QString> path = getPluginPath();
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Chris@1164
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339 for (vector<QString>::iterator i = path.begin();
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Chris@66
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340 i != path.end(); ++i) {
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Chris@66
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341 if (*i != "") {
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342 file = findPluginFile(soname, *i);
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Chris@66
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343 if (file != "") return file;
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Chris@66
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344 }
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Chris@66
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345 }
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Chris@66
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346
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Chris@249
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347 #ifdef DEBUG_PLUGIN_SCAN_AND_INSTANTIATE
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Chris@1140
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348 cerr << "FeatureExtractionPluginFactory::findPluginFile: "
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Chris@687
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349 << "not found" << endl;
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Chris@249
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350 #endif
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Chris@249
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351
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Chris@66
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352 return "";
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Chris@66
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353 }
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Chris@66
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354 }
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Chris@66
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355
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Chris@66
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356 Vamp::Plugin *
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Chris@0
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357 FeatureExtractionPluginFactory::instantiatePlugin(QString identifier,
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Chris@1040
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358 sv_samplerate_t inputSampleRate)
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Chris@0
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359 {
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Chris@408
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360 Profiler profiler("FeatureExtractionPluginFactory::instantiatePlugin");
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Chris@408
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361
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Chris@66
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362 Vamp::Plugin *rv = 0;
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Chris@298
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363 Vamp::PluginHostAdapter *plugin = 0;
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Chris@66
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364
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Chris@66
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365 const VampPluginDescriptor *descriptor = 0;
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Chris@66
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366 int index = 0;
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Chris@66
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367
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Chris@66
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368 QString type, soname, label;
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Chris@66
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369 PluginIdentifier::parseIdentifier(identifier, type, soname, label);
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Chris@71
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370 if (type != "vamp") {
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Chris@1167
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371 #ifdef DEBUG_PLUGIN_SCAN_AND_INSTANTIATE
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Chris@1167
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372 cerr << "FeatureExtractionPluginFactory::instantiatePlugin: Wrong factory for plugin type " << type << endl;
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Chris@1167
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373 #endif
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Chris@0
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374 return 0;
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Chris@0
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375 }
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Chris@0
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376
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Chris@66
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377 QString found = findPluginFile(soname);
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Chris@66
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378
|
Chris@66
|
379 if (found == "") {
|
Chris@843
|
380 cerr << "FeatureExtractionPluginFactory::instantiatePlugin: Failed to find library file " << soname << endl;
|
Chris@117
|
381 return 0;
|
Chris@66
|
382 } else if (found != soname) {
|
Chris@249
|
383
|
Chris@249
|
384 #ifdef DEBUG_PLUGIN_SCAN_AND_INSTANTIATE
|
Chris@1140
|
385 cerr << "FeatureExtractionPluginFactory::instantiatePlugin: Given library name was " << soname << ", found at " << found << endl;
|
Chris@843
|
386 cerr << soname << " -> " << found << endl;
|
Chris@249
|
387 #endif
|
Chris@249
|
388
|
Chris@249
|
389 }
|
Chris@0
|
390
|
Chris@66
|
391 soname = found;
|
Chris@66
|
392
|
Chris@435
|
393 void *libraryHandle = DLOPEN(soname, RTLD_LAZY | RTLD_LOCAL);
|
Chris@66
|
394
|
Chris@66
|
395 if (!libraryHandle) {
|
Chris@843
|
396 cerr << "FeatureExtractionPluginFactory::instantiatePlugin: Failed to load library " << soname << ": " << DLERROR() << endl;
|
Chris@66
|
397 return 0;
|
Chris@19
|
398 }
|
Chris@19
|
399
|
Chris@66
|
400 VampGetPluginDescriptorFunction fn = (VampGetPluginDescriptorFunction)
|
Chris@66
|
401 DLSYM(libraryHandle, "vampGetPluginDescriptor");
|
Chris@66
|
402
|
Chris@66
|
403 if (!fn) {
|
Chris@1140
|
404 cerr << "FeatureExtractionPluginFactory::instantiatePlugin: No descriptor function in " << soname << endl;
|
Chris@66
|
405 goto done;
|
Chris@0
|
406 }
|
Chris@0
|
407
|
Chris@239
|
408 while ((descriptor = fn(VAMP_API_VERSION, index))) {
|
Chris@238
|
409 if (label == descriptor->identifier) break;
|
Chris@66
|
410 ++index;
|
Chris@47
|
411 }
|
Chris@47
|
412
|
Chris@66
|
413 if (!descriptor) {
|
Chris@843
|
414 cerr << "FeatureExtractionPluginFactory::instantiatePlugin: Failed to find plugin \"" << label << "\" in library " << soname << endl;
|
Chris@66
|
415 goto done;
|
Martin@37
|
416 }
|
Martin@37
|
417
|
Chris@1040
|
418 plugin = new Vamp::PluginHostAdapter(descriptor, float(inputSampleRate));
|
Chris@298
|
419
|
Chris@298
|
420 if (plugin) {
|
Chris@298
|
421 m_handleMap[plugin] = libraryHandle;
|
Chris@298
|
422 rv = new PluginDeletionNotifyAdapter(plugin, this);
|
Chris@298
|
423 }
|
Chris@66
|
424
|
Chris@690
|
425 // SVDEBUG << "FeatureExtractionPluginFactory::instantiatePlugin: Constructed Vamp plugin, rv is " << rv << endl;
|
Chris@79
|
426
|
Chris@66
|
427 //!!! need to dlclose() when plugins from a given library are unloaded
|
Chris@66
|
428
|
Chris@66
|
429 done:
|
Chris@66
|
430 if (!rv) {
|
Chris@66
|
431 if (DLCLOSE(libraryHandle) != 0) {
|
Chris@843
|
432 cerr << "WARNING: FeatureExtractionPluginFactory::instantiatePlugin: Failed to unload library " << soname << endl;
|
Chris@66
|
433 }
|
Chris@66
|
434 }
|
Chris@73
|
435
|
Chris@1167
|
436 #ifdef DEBUG_PLUGIN_SCAN_AND_INSTANTIATE
|
Chris@1167
|
437 cerr << "FeatureExtractionPluginFactory::instantiatePlugin: Instantiated plugin " << label << " from library " << soname << ": descriptor " << descriptor << ", rv "<< rv << ", label " << rv->getName() << ", outputs " << rv->getOutputDescriptors().size() << endl;
|
Chris@1167
|
438 #endif
|
Chris@73
|
439
|
Chris@66
|
440 return rv;
|
Chris@0
|
441 }
|
Chris@0
|
442
|
Chris@298
|
443 void
|
Chris@298
|
444 FeatureExtractionPluginFactory::pluginDeleted(Vamp::Plugin *plugin)
|
Chris@298
|
445 {
|
Chris@298
|
446 void *handle = m_handleMap[plugin];
|
Chris@298
|
447 if (handle) {
|
Chris@1167
|
448 #ifdef DEBUG_PLUGIN_SCAN_AND_INSTANTIATE
|
Chris@1167
|
449 cerr << "unloading library " << handle << " for plugin " << plugin << endl;
|
Chris@1167
|
450 #endif
|
Chris@298
|
451 DLCLOSE(handle);
|
Chris@298
|
452 }
|
Chris@298
|
453 m_handleMap.erase(plugin);
|
Chris@298
|
454 }
|
Chris@298
|
455
|
Chris@165
|
456 QString
|
Chris@165
|
457 FeatureExtractionPluginFactory::getPluginCategory(QString identifier)
|
Chris@165
|
458 {
|
Chris@165
|
459 return m_taxonomy[identifier];
|
Chris@165
|
460 }
|
Chris@165
|
461
|
Chris@165
|
462 void
|
Chris@165
|
463 FeatureExtractionPluginFactory::generateTaxonomy()
|
Chris@165
|
464 {
|
Chris@1164
|
465 vector<QString> pluginPath = getPluginPath();
|
Chris@1164
|
466 vector<QString> path;
|
Chris@165
|
467
|
Chris@165
|
468 for (size_t i = 0; i < pluginPath.size(); ++i) {
|
Chris@165
|
469 if (pluginPath[i].contains("/lib/")) {
|
Chris@165
|
470 QString p(pluginPath[i]);
|
Chris@165
|
471 path.push_back(p);
|
Chris@165
|
472 p.replace("/lib/", "/share/");
|
Chris@165
|
473 path.push_back(p);
|
Chris@165
|
474 }
|
Chris@165
|
475 path.push_back(pluginPath[i]);
|
Chris@165
|
476 }
|
Chris@165
|
477
|
Chris@165
|
478 for (size_t i = 0; i < path.size(); ++i) {
|
Chris@165
|
479
|
Chris@165
|
480 QDir dir(path[i], "*.cat");
|
Chris@165
|
481
|
Chris@690
|
482 // SVDEBUG << "LADSPAPluginFactory::generateFallbackCategories: directory " << path[i] << " has " << dir.count() << " .cat files" << endl;
|
Chris@165
|
483 for (unsigned int j = 0; j < dir.count(); ++j) {
|
Chris@165
|
484
|
Chris@165
|
485 QFile file(path[i] + "/" + dir[j]);
|
Chris@165
|
486
|
Chris@690
|
487 // SVDEBUG << "LADSPAPluginFactory::generateFallbackCategories: about to open " << (path[i]+ "/" + dir[j]) << endl;
|
Chris@165
|
488
|
Chris@165
|
489 if (file.open(QIODevice::ReadOnly)) {
|
Chris@843
|
490 // cerr << "...opened" << endl;
|
Chris@165
|
491 QTextStream stream(&file);
|
Chris@165
|
492 QString line;
|
Chris@165
|
493
|
Chris@165
|
494 while (!stream.atEnd()) {
|
Chris@165
|
495 line = stream.readLine();
|
Chris@843
|
496 // cerr << "line is: \"" << line << "\"" << endl;
|
Chris@165
|
497 QString id = PluginIdentifier::canonicalise
|
Chris@165
|
498 (line.section("::", 0, 0));
|
Chris@165
|
499 QString cat = line.section("::", 1, 1);
|
Chris@165
|
500 m_taxonomy[id] = cat;
|
Chris@843
|
501 // cerr << "FeatureExtractionPluginFactory: set id \"" << id << "\" to cat \"" << cat << "\"" << endl;
|
Chris@165
|
502 }
|
Chris@165
|
503 }
|
Chris@165
|
504 }
|
Chris@165
|
505 }
|
Chris@165
|
506 }
|