vector<string>
PluginLoader::Impl::listLibraryFilesFor(Enumeration enumeration)
{
Files::Filter filter;
switch (enumeration.type) {
case Enumeration::All:
filter.type = Files::Filter::All;
break;
case Enumeration::SinglePlugin:
{
string libraryName, identifier;
if (!decomposePluginKey(enumeration.key, libraryName, identifier)) {
std::cerr << "WARNING: Vamp::HostExt::PluginLoader: "
<< "Invalid plugin key \"" << enumeration.key
<< "\" in enumerate" << std::endl;
return vector<string>();
}
filter.type = Files::Filter::Matching;
filter.libraryNames.clear();
filter.libraryNames.push_back(libraryName);
break;
}
case Enumeration::InLibraries:
filter.type = Files::Filter::Matching;
filter.libraryNames = enumeration.libraryNames;
break;
case Enumeration::NotInLibraries:
filter.type = Files::Filter::NotMatching;
filter.libraryNames = enumeration.libraryNames;
break;
}
return Files::listLibraryFilesMatching(filter);
}
Plugin *
PluginLoader::Impl::loadPlugin(PluginKey key,
float inputSampleRate, int adapterFlags)
{
string libname, identifier;
if (!decomposePluginKey(key, libname, identifier)) {
std::cerr << "Vamp::HostExt::PluginLoader: Invalid plugin key \""
<< key << "\" in loadPlugin" << std::endl;
return 0;
}
string fullPath = getLibraryPathForPlugin(key);
if (fullPath == "") {
std::cerr << "Vamp::HostExt::PluginLoader: No library found in Vamp path for plugin \"" << key << "\"" << std::endl;
return 0;
}
void *handle = Files::loadLibrary(fullPath);
if (!handle) return 0;
VampGetPluginDescriptorFunction fn =
(VampGetPluginDescriptorFunction)Files::lookupInLibrary
(handle, "vampGetPluginDescriptor");
if (!fn) {
cerr << "Vamp::HostExt::PluginLoader: No vampGetPluginDescriptor function found in library \""
<< fullPath << "\"" << endl;
Files::unloadLibrary(handle);
return 0;
}
int index = 0;
const VampPluginDescriptor *descriptor = 0;
while ((descriptor = fn(VAMP_API_VERSION, index))) {
if (string(descriptor->identifier) == identifier) {
Vamp::PluginHostAdapter *plugin =
new Vamp::PluginHostAdapter(descriptor, inputSampleRate);
Plugin *adapter = new PluginDeletionNotifyAdapter(plugin, this);
m_pluginLibraryHandleMap[adapter] = handle;
if (adapterFlags & ADAPT_INPUT_DOMAIN) {
if (adapter->getInputDomain() == Plugin::FrequencyDomain) {
adapter = new PluginInputDomainAdapter(adapter);
}
}
if (adapterFlags & ADAPT_BUFFER_SIZE) {
adapter = new PluginBufferingAdapter(adapter);
}
if (adapterFlags & ADAPT_CHANNEL_COUNT) {
adapter = new PluginChannelAdapter(adapter);
}
return adapter;
}
++index;
}
cerr << "Vamp::HostExt::PluginLoader: Plugin \""
<< identifier << "\" not found in library \""
<< fullPath << "\"" << endl;
return 0;
}
vector<PluginLoader::PluginKey>
PluginLoader::Impl::enumeratePlugins(Enumeration enumeration)
{
string libraryName, identifier;
if (enumeration.type == Enumeration::SinglePlugin) {
decomposePluginKey(enumeration.key, libraryName, identifier);
}
vector<string> fullPaths = listLibraryFilesFor(enumeration);
// For these we should warn if a plugin can be loaded from a library
bool specific = (enumeration.type == Enumeration::SinglePlugin ||
enumeration.type == Enumeration::InLibraries);
vector<PluginKey> added;
for (size_t i = 0; i < fullPaths.size(); ++i) {
string fullPath = fullPaths[i];
void *handle = Files::loadLibrary(fullPath);
if (!handle) continue;
VampGetPluginDescriptorFunction fn =
(VampGetPluginDescriptorFunction)Files::lookupInLibrary
(handle, "vampGetPluginDescriptor");
if (!fn) {
if (specific) {
cerr << "Vamp::HostExt::PluginLoader: "
<< "No vampGetPluginDescriptor function found in library \""
<< fullPath << "\"" << endl;
}
Files::unloadLibrary(handle);
continue;
}
int index = 0;
const VampPluginDescriptor *descriptor = 0;
bool found = false;
while ((descriptor = fn(VAMP_API_VERSION, index))) {
++index;
if (identifier != "") {
if (descriptor->identifier != identifier) {
continue;
}
}
found = true;
PluginKey key = composePluginKey(fullPath, descriptor->identifier);
if (m_pluginLibraryNameMap.find(key) ==
m_pluginLibraryNameMap.end()) {
m_pluginLibraryNameMap[key] = fullPath;
}
added.push_back(key);
}
if (!found && specific) {
cerr << "Vamp::HostExt::PluginLoader: Plugin \""
<< identifier << "\" not found in library \""
<< fullPath << "\"" << endl;
}
Files::unloadLibrary(handle);
}
if (enumeration.type == Enumeration::All) {
m_allPluginsEnumerated = true;
}
return added;
}
void
PluginLoader::Impl::enumeratePlugins(PluginKey forPlugin)
{
vector<string> path = PluginHostAdapter::getPluginPath();
string libraryName, identifier;
if (forPlugin != "") {
if (!decomposePluginKey(forPlugin, libraryName, identifier)) {
std::cerr << "WARNING: Vamp::HostExt::PluginLoader: Invalid plugin key \""
<< forPlugin << "\" in enumerate" << std::endl;
return;
}
}
for (size_t i = 0; i < path.size(); ++i) {
vector<string> files = listFiles(path[i], PLUGIN_SUFFIX);
for (vector<string>::iterator fi = files.begin();
fi != files.end(); ++fi) {
if (libraryName != "") {
// libraryName is lowercased and lacking an extension,
// as it came from the plugin key
string temp = *fi;
for (size_t i = 0; i < temp.length(); ++i) {
temp[i] = tolower(temp[i]);
}
string::size_type pi = temp.find('.');
if (pi == string::npos) {
if (libraryName != temp) continue;
} else {
if (libraryName != temp.substr(0, pi)) continue;
}
}
string fullPath = path[i];
fullPath = splicePath(fullPath, *fi);
void *handle = loadLibrary(fullPath);
if (!handle) continue;
VampGetPluginDescriptorFunction fn =
(VampGetPluginDescriptorFunction)lookupInLibrary
(handle, "vampGetPluginDescriptor");
if (!fn) {
unloadLibrary(handle);
continue;
}
int index = 0;
const VampPluginDescriptor *descriptor = 0;
while ((descriptor = fn(VAMP_API_VERSION, index))) {
++index;
if (identifier != "") {
if (descriptor->identifier != identifier) continue;
}
PluginKey key = composePluginKey(*fi, descriptor->identifier);
// std::cerr << "enumerate: " << key << " (path: " << fullPath << ")" << std::endl;
if (m_pluginLibraryNameMap.find(key) ==
m_pluginLibraryNameMap.end()) {
m_pluginLibraryNameMap[key] = fullPath;
}
}
unloadLibrary(handle);
}
}
if (forPlugin == "") m_allPluginsEnumerated = true;
}
