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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/vamp.h"
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20 #include "vamp-sdk/PluginHostAdapter.h"
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21 #include "vamp-sdk/hostext/PluginWrapper.h"
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22
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23 #include "system/System.h"
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24
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25 #include <QDir>
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26 #include <QFile>
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27 #include <QFileInfo>
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28 #include <QTextStream>
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29
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30 #include <iostream>
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31
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32 #include "base/Profiler.h"
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33
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34 //#define DEBUG_PLUGIN_SCAN_AND_INSTANTIATE 1
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35
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36 class PluginDeletionNotifyAdapter : public Vamp::HostExt::PluginWrapper {
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37 public:
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38 PluginDeletionNotifyAdapter(Vamp::Plugin *plugin,
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39 FeatureExtractionPluginFactory *factory) :
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40 PluginWrapper(plugin), m_factory(factory) { }
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41 virtual ~PluginDeletionNotifyAdapter();
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42 protected:
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43 FeatureExtractionPluginFactory *m_factory;
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44 };
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45
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46 PluginDeletionNotifyAdapter::~PluginDeletionNotifyAdapter()
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47 {
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48 // see notes in vamp-sdk/hostext/PluginLoader.cpp from which this is drawn
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49 Vamp::Plugin *p = m_plugin;
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50 delete m_plugin;
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51 m_plugin = 0;
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52 if (m_factory) m_factory->pluginDeleted(p);
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53 }
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54
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55 static FeatureExtractionPluginFactory *_nativeInstance = 0;
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56
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57 FeatureExtractionPluginFactory *
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58 FeatureExtractionPluginFactory::instance(QString pluginType)
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59 {
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60 if (pluginType == "vamp") {
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61 if (!_nativeInstance) {
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62 // std::cerr << "FeatureExtractionPluginFactory::instance(" << pluginType.toStdString()
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63 // << "): creating new FeatureExtractionPluginFactory" << std::endl;
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64 _nativeInstance = new FeatureExtractionPluginFactory();
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65 }
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66 return _nativeInstance;
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67 }
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68
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69 else return 0;
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70 }
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71
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72 FeatureExtractionPluginFactory *
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73 FeatureExtractionPluginFactory::instanceFor(QString identifier)
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74 {
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75 QString type, soName, label;
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76 PluginIdentifier::parseIdentifier(identifier, type, soName, label);
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77 return instance(type);
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78 }
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79
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80 std::vector<QString>
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81 FeatureExtractionPluginFactory::getPluginPath()
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82 {
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83 if (!m_pluginPath.empty()) return m_pluginPath;
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84
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85 std::vector<std::string> p = Vamp::PluginHostAdapter::getPluginPath();
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86 for (size_t i = 0; i < p.size(); ++i) m_pluginPath.push_back(p[i].c_str());
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87 return m_pluginPath;
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88 }
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89
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90 std::vector<QString>
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91 FeatureExtractionPluginFactory::getAllPluginIdentifiers()
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92 {
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93 FeatureExtractionPluginFactory *factory;
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94 std::vector<QString> rv;
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95
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96 factory = instance("vamp");
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97 if (factory) {
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98 std::vector<QString> tmp = factory->getPluginIdentifiers();
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99 for (size_t i = 0; i < tmp.size(); ++i) {
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100 // std::cerr << "identifier: " << tmp[i].toStdString() << std::endl;
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101 rv.push_back(tmp[i]);
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102 }
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103 }
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104
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105 // Plugins can change the locale, revert it to default.
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106 setlocale(LC_ALL, "C");
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107 return rv;
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108 }
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109
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110 std::vector<QString>
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111 FeatureExtractionPluginFactory::getPluginIdentifiers()
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112 {
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113 Profiler profiler("FeatureExtractionPluginFactory::getPluginIdentifiers");
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114
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115 std::vector<QString> rv;
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116 std::vector<QString> path = getPluginPath();
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117
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118 for (std::vector<QString>::iterator i = path.begin(); i != path.end(); ++i) {
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119
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120 #ifdef DEBUG_PLUGIN_SCAN_AND_INSTANTIATE
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121 std::cerr << "FeatureExtractionPluginFactory::getPluginIdentifiers: scanning directory " << i->toStdString() << std::endl;
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122 #endif
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123
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124 QDir pluginDir(*i, PLUGIN_GLOB,
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125 QDir::Name | QDir::IgnoreCase,
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126 QDir::Files | QDir::Readable);
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127
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128 for (unsigned int j = 0; j < pluginDir.count(); ++j) {
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129
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130 QString soname = pluginDir.filePath(pluginDir[j]);
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131
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132 #ifdef DEBUG_PLUGIN_SCAN_AND_INSTANTIATE
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133 std::cerr << "FeatureExtractionPluginFactory::getPluginIdentifiers: trying potential library " << soname.toStdString() << std::endl;
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134 #endif
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135
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136 void *libraryHandle = DLOPEN(soname, RTLD_LAZY | RTLD_GLOBAL);
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137
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138 if (!libraryHandle) {
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139 std::cerr << "WARNING: FeatureExtractionPluginFactory::getPluginIdentifiers: Failed to load library " << soname.toStdString() << ": " << DLERROR() << std::endl;
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140 continue;
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141 }
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142
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143 #ifdef DEBUG_PLUGIN_SCAN_AND_INSTANTIATE
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144 std::cerr << "FeatureExtractionPluginFactory::getPluginIdentifiers: It's a library all right, checking for descriptor" << std::endl;
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145 #endif
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146
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147 VampGetPluginDescriptorFunction fn = (VampGetPluginDescriptorFunction)
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148 DLSYM(libraryHandle, "vampGetPluginDescriptor");
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149
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150 if (!fn) {
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151 std::cerr << "WARNING: FeatureExtractionPluginFactory::getPluginIdentifiers: No descriptor function in " << soname.toStdString() << std::endl;
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152 if (DLCLOSE(libraryHandle) != 0) {
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153 std::cerr << "WARNING: FeatureExtractionPluginFactory::getPluginIdentifiers: Failed to unload library " << soname.toStdString() << std::endl;
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154 }
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155 continue;
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156 }
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157
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158 #ifdef DEBUG_PLUGIN_SCAN_AND_INSTANTIATE
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159 std::cerr << "FeatureExtractionPluginFactory::getPluginIdentifiers: Vamp descriptor found" << std::endl;
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160 #endif
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161
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162 const VampPluginDescriptor *descriptor = 0;
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163 int index = 0;
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164
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165 std::map<std::string, int> known;
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166 bool ok = true;
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167
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168 while ((descriptor = fn(VAMP_API_VERSION, index))) {
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169
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170 if (known.find(descriptor->identifier) != known.end()) {
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171 std::cerr << "WARNING: FeatureExtractionPluginFactory::getPluginIdentifiers: Plugin library "
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172 << soname.toStdString()
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173 << " returns the same plugin identifier \""
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174 << descriptor->identifier << "\" at indices "
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175 << known[descriptor->identifier] << " and "
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176 << index << std::endl;
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177 std::cerr << "FeatureExtractionPluginFactory::getPluginIdentifiers: Avoiding this library (obsolete API?)" << std::endl;
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178 ok = false;
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179 break;
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180 } else {
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181 known[descriptor->identifier] = index;
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182 }
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183
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184 ++index;
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185 }
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186
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187 if (ok) {
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188
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189 index = 0;
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190
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191 while ((descriptor = fn(VAMP_API_VERSION, index))) {
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192
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193 QString id = PluginIdentifier::createIdentifier
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194 ("vamp", soname, descriptor->identifier);
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195 rv.push_back(id);
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196 #ifdef DEBUG_PLUGIN_SCAN_AND_INSTANTIATE
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197 std::cerr << "FeatureExtractionPluginFactory::getPluginIdentifiers: Found plugin id " << id.toStdString() << " at index " << index << std::endl;
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198 #endif
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199 ++index;
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200 }
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201 }
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202
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203 if (DLCLOSE(libraryHandle) != 0) {
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204 std::cerr << "WARNING: FeatureExtractionPluginFactory::getPluginIdentifiers: Failed to unload library " << soname.toStdString() << std::endl;
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205 }
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206 }
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207 }
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208
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209 generateTaxonomy();
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210
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211 return rv;
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212 }
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213
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214 QString
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215 FeatureExtractionPluginFactory::findPluginFile(QString soname, QString inDir)
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216 {
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217 QString file = "";
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218
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219 #ifdef DEBUG_PLUGIN_SCAN_AND_INSTANTIATE
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220 std::cerr << "FeatureExtractionPluginFactory::findPluginFile(\""
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221 << soname.toStdString() << "\", \"" << inDir.toStdString() << "\")"
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222 << std::endl;
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223 #endif
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224
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225 if (inDir != "") {
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226
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227 QDir dir(inDir, PLUGIN_GLOB,
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228 QDir::Name | QDir::IgnoreCase,
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229 QDir::Files | QDir::Readable);
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230 if (!dir.exists()) return "";
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231
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232 file = dir.filePath(QFileInfo(soname).fileName());
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233
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234 if (QFileInfo(file).exists() && QFileInfo(file).isFile()) {
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235
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236 #ifdef DEBUG_PLUGIN_SCAN_AND_INSTANTIATE
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237 std::cerr << "FeatureExtractionPluginFactory::findPluginFile: "
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238 << "found trivially at " << file.toStdString() << std::endl;
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239 #endif
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240
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241 return file;
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242 }
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243
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244 for (unsigned int j = 0; j < dir.count(); ++j) {
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245 file = dir.filePath(dir[j]);
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246 if (QFileInfo(file).baseName() == QFileInfo(soname).baseName()) {
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247
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248 #ifdef DEBUG_PLUGIN_SCAN_AND_INSTANTIATE
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249 std::cerr << "FeatureExtractionPluginFactory::findPluginFile: "
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250 << "found \"" << soname.toStdString() << "\" at " << file.toStdString() << std::endl;
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251 #endif
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252
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253 return file;
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254 }
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255 }
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256
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257 #ifdef DEBUG_PLUGIN_SCAN_AND_INSTANTIATE
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258 std::cerr << "FeatureExtractionPluginFactory::findPluginFile (with dir): "
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259 << "not found" << std::endl;
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260 #endif
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261
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262 return "";
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263
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264 } else {
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265
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266 QFileInfo fi(soname);
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267
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268 if (fi.isAbsolute() && fi.exists() && fi.isFile()) {
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269 #ifdef DEBUG_PLUGIN_SCAN_AND_INSTANTIATE
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270 std::cerr << "FeatureExtractionPluginFactory::findPluginFile: "
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271 << "found trivially at " << soname.toStdString() << std::endl;
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272 #endif
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273 return soname;
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274 }
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275
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276 if (fi.isAbsolute() && fi.absolutePath() != "") {
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277 file = findPluginFile(soname, fi.absolutePath());
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278 if (file != "") return file;
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279 }
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280
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281 std::vector<QString> path = getPluginPath();
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282 for (std::vector<QString>::iterator i = path.begin();
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283 i != path.end(); ++i) {
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284 if (*i != "") {
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285 file = findPluginFile(soname, *i);
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286 if (file != "") return file;
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287 }
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288 }
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289
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290 #ifdef DEBUG_PLUGIN_SCAN_AND_INSTANTIATE
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291 std::cerr << "FeatureExtractionPluginFactory::findPluginFile: "
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292 << "not found" << std::endl;
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293 #endif
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294
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295 return "";
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296 }
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297 }
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298
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299 Vamp::Plugin *
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300 FeatureExtractionPluginFactory::instantiatePlugin(QString identifier,
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301 float inputSampleRate)
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302 {
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303 Profiler profiler("FeatureExtractionPluginFactory::instantiatePlugin");
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304
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305 Vamp::Plugin *rv = 0;
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306 Vamp::PluginHostAdapter *plugin = 0;
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307
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308 const VampPluginDescriptor *descriptor = 0;
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309 int index = 0;
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310
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311 QString type, soname, label;
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312 PluginIdentifier::parseIdentifier(identifier, type, soname, label);
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313 if (type != "vamp") {
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314 std::cerr << "FeatureExtractionPluginFactory::instantiatePlugin: Wrong factory for plugin type " << type.toStdString() << std::endl;
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315 return 0;
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316 }
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317
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318 QString found = findPluginFile(soname);
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319
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320 if (found == "") {
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321 std::cerr << "FeatureExtractionPluginFactory::instantiatePlugin: Failed to find library file " << soname.toStdString() << std::endl;
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322 return 0;
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323 } else if (found != soname) {
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324
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Chris@249
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325 #ifdef DEBUG_PLUGIN_SCAN_AND_INSTANTIATE
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Chris@249
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326 std::cerr << "FeatureExtractionPluginFactory::instantiatePlugin: Given library name was " << soname.toStdString() << ", found at " << found.toStdString() << std::endl;
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Chris@249
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327 std::cerr << soname.toStdString() << " -> " << found.toStdString() << std::endl;
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Chris@249
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328 #endif
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329
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330 }
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331
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332 soname = found;
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333
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334 void *libraryHandle = DLOPEN(soname, RTLD_LAZY | RTLD_GLOBAL);
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335
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336 if (!libraryHandle) {
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337 std::cerr << "FeatureExtractionPluginFactory::instantiatePlugin: Failed to load library " << soname.toStdString() << ": " << DLERROR() << std::endl;
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338 return 0;
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Chris@19
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339 }
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340
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341 VampGetPluginDescriptorFunction fn = (VampGetPluginDescriptorFunction)
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342 DLSYM(libraryHandle, "vampGetPluginDescriptor");
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343
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344 if (!fn) {
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345 std::cerr << "FeatureExtractionPluginFactory::instantiatePlugin: No descriptor function in " << soname.toStdString() << std::endl;
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346 goto done;
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Chris@0
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347 }
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Chris@0
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348
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Chris@239
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349 while ((descriptor = fn(VAMP_API_VERSION, index))) {
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Chris@238
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350 if (label == descriptor->identifier) break;
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Chris@66
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351 ++index;
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Chris@47
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352 }
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Chris@47
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353
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Chris@66
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354 if (!descriptor) {
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Chris@66
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355 std::cerr << "FeatureExtractionPluginFactory::instantiatePlugin: Failed to find plugin \"" << label.toStdString() << "\" in library " << soname.toStdString() << std::endl;
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Chris@66
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356 goto done;
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Martin@37
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357 }
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Martin@37
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358
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Chris@298
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359 plugin = new Vamp::PluginHostAdapter(descriptor, inputSampleRate);
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Chris@298
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360
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Chris@298
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361 if (plugin) {
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Chris@298
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362 m_handleMap[plugin] = libraryHandle;
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Chris@298
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363 rv = new PluginDeletionNotifyAdapter(plugin, this);
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Chris@298
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364 }
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365
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Chris@117
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366 // std::cerr << "FeatureExtractionPluginFactory::instantiatePlugin: Constructed Vamp plugin, rv is " << rv << std::endl;
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367
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Chris@66
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368 //!!! need to dlclose() when plugins from a given library are unloaded
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369
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Chris@66
|
370 done:
|
Chris@66
|
371 if (!rv) {
|
Chris@66
|
372 if (DLCLOSE(libraryHandle) != 0) {
|
Chris@66
|
373 std::cerr << "WARNING: FeatureExtractionPluginFactory::instantiatePlugin: Failed to unload library " << soname.toStdString() << std::endl;
|
Chris@66
|
374 }
|
Chris@66
|
375 }
|
Chris@73
|
376
|
Chris@73
|
377 // std::cerr << "FeatureExtractionPluginFactory::instantiatePlugin: Instantiated plugin " << label.toStdString() << " from library " << soname.toStdString() << ": descriptor " << descriptor << ", rv "<< rv << ", label " << rv->getName() << ", outputs " << rv->getOutputDescriptors().size() << std::endl;
|
Chris@73
|
378
|
Chris@66
|
379 return rv;
|
Chris@0
|
380 }
|
Chris@0
|
381
|
Chris@298
|
382 void
|
Chris@298
|
383 FeatureExtractionPluginFactory::pluginDeleted(Vamp::Plugin *plugin)
|
Chris@298
|
384 {
|
Chris@298
|
385 void *handle = m_handleMap[plugin];
|
Chris@298
|
386 if (handle) {
|
Chris@299
|
387 // std::cerr << "unloading library " << handle << " for plugin " << plugin << std::endl;
|
Chris@298
|
388 DLCLOSE(handle);
|
Chris@298
|
389 }
|
Chris@298
|
390 m_handleMap.erase(plugin);
|
Chris@298
|
391 }
|
Chris@298
|
392
|
Chris@165
|
393 QString
|
Chris@165
|
394 FeatureExtractionPluginFactory::getPluginCategory(QString identifier)
|
Chris@165
|
395 {
|
Chris@165
|
396 return m_taxonomy[identifier];
|
Chris@165
|
397 }
|
Chris@165
|
398
|
Chris@165
|
399 void
|
Chris@165
|
400 FeatureExtractionPluginFactory::generateTaxonomy()
|
Chris@165
|
401 {
|
Chris@165
|
402 std::vector<QString> pluginPath = getPluginPath();
|
Chris@165
|
403 std::vector<QString> path;
|
Chris@165
|
404
|
Chris@165
|
405 for (size_t i = 0; i < pluginPath.size(); ++i) {
|
Chris@165
|
406 if (pluginPath[i].contains("/lib/")) {
|
Chris@165
|
407 QString p(pluginPath[i]);
|
Chris@165
|
408 path.push_back(p);
|
Chris@165
|
409 p.replace("/lib/", "/share/");
|
Chris@165
|
410 path.push_back(p);
|
Chris@165
|
411 }
|
Chris@165
|
412 path.push_back(pluginPath[i]);
|
Chris@165
|
413 }
|
Chris@165
|
414
|
Chris@165
|
415 for (size_t i = 0; i < path.size(); ++i) {
|
Chris@165
|
416
|
Chris@165
|
417 QDir dir(path[i], "*.cat");
|
Chris@165
|
418
|
Chris@165
|
419 // std::cerr << "LADSPAPluginFactory::generateFallbackCategories: directory " << path[i].toStdString() << " has " << dir.count() << " .cat files" << std::endl;
|
Chris@165
|
420 for (unsigned int j = 0; j < dir.count(); ++j) {
|
Chris@165
|
421
|
Chris@165
|
422 QFile file(path[i] + "/" + dir[j]);
|
Chris@165
|
423
|
Chris@165
|
424 // std::cerr << "LADSPAPluginFactory::generateFallbackCategories: about to open " << (path[i].toStdString() + "/" + dir[j].toStdString()) << std::endl;
|
Chris@165
|
425
|
Chris@165
|
426 if (file.open(QIODevice::ReadOnly)) {
|
Chris@165
|
427 // std::cerr << "...opened" << std::endl;
|
Chris@165
|
428 QTextStream stream(&file);
|
Chris@165
|
429 QString line;
|
Chris@165
|
430
|
Chris@165
|
431 while (!stream.atEnd()) {
|
Chris@165
|
432 line = stream.readLine();
|
Chris@165
|
433 // std::cerr << "line is: \"" << line.toStdString() << "\"" << std::endl;
|
Chris@165
|
434 QString id = PluginIdentifier::canonicalise
|
Chris@165
|
435 (line.section("::", 0, 0));
|
Chris@165
|
436 QString cat = line.section("::", 1, 1);
|
Chris@165
|
437 m_taxonomy[id] = cat;
|
Chris@165
|
438 // std::cerr << "FeatureExtractionPluginFactory: set id \"" << id.toStdString() << "\" to cat \"" << cat.toStdString() << "\"" << std::endl;
|
Chris@165
|
439 }
|
Chris@165
|
440 }
|
Chris@165
|
441 }
|
Chris@165
|
442 }
|
Chris@165
|
443 }
|