comparison vamp-support/LoaderRequests.h @ 97:427c4c725085

Bring in the Request/Response classes that were in the Vamp SDK, adding them to vamp-support in here instead

+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*
+    Piper C++
+
+    An API for audio analysis and feature extraction plugins.
+
+    Centre for Digital Music, Queen Mary, University of London.
+    Copyright 2006-2016 Chris Cannam and QMUL.
+  
+    Permission is hereby granted, free of charge, to any person
+    obtaining a copy of this software and associated documentation
+    files (the "Software"), to deal in the Software without
+    restriction, including without limitation the rights to use, copy,
+    modify, merge, publish, distribute, sublicense, and/or sell copies
+    of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be
+    included in all copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+    EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+    NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+    ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
+    CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+    WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+    Except as contained in this notice, the names of the Centre for
+    Digital Music; Queen Mary, University of London; and Chris Cannam
+    shall not be used in advertising or otherwise to promote the sale,
+    use or other dealings in this Software without prior written
+    authorization.
+*/
+
+#ifndef PIPER_LOADER_REQUESTS_H
+#define PIPER_LOADER_REQUESTS_H
+
+#include "PluginStaticData.h"
+#include "PluginConfiguration.h"
+
+#include <vamp-hostsdk/PluginLoader.h>
+
+#include <map>
+#include <string>
+
+namespace piper_vamp {
+
+class LoaderRequests
+{
+public:
+    ListResponse
+    listPluginData() {
+
+	auto loader = Vamp::HostExt::PluginLoader::getInstance();
+	auto keys = loader->listPlugins();
+	ListResponse response;
+
+	for (std::string key: keys) {
+	    Vamp::Plugin *p = loader->loadPlugin(key, 44100, 0);
+	    if (!p) continue;
+	    auto category = loader->getPluginCategory(key);
+	    response.available.push_back
+		(PluginStaticData::fromPlugin(key, category, p));
+	    delete p;
+	}
+
+	return response;
+    }
+
+    LoadResponse
+    loadPlugin(LoadRequest req) {
+
+	auto loader = Vamp::HostExt::PluginLoader::getInstance();
+	
+	Vamp::Plugin *plugin = loader->loadPlugin(req.pluginKey,
+						  req.inputSampleRate,
+						  req.adapterFlags);
+
+	LoadResponse response;
+	response.plugin = plugin;
+	if (!plugin) return response;
+
+	response.plugin = plugin;
+	response.staticData = PluginStaticData::fromPlugin
+	    (req.pluginKey,
+	     loader->getPluginCategory(req.pluginKey),
+	     plugin);
+
+	int defaultChannels = 0;
+	if (plugin->getMinChannelCount() == plugin->getMaxChannelCount()) {
+	    defaultChannels = plugin->getMinChannelCount();
+	}
+	
+	response.defaultConfiguration = PluginConfiguration::fromPlugin
+	    (plugin,
+	     defaultChannels,
+	     plugin->getPreferredStepSize(),
+	     plugin->getPreferredBlockSize());
+	
+	return response;
+    }
+
+    ConfigurationResponse
+    configurePlugin(ConfigurationRequest req) {
+	
+	for (PluginConfiguration::ParameterMap::const_iterator i =
+		 req.configuration.parameterValues.begin();
+	     i != req.configuration.parameterValues.end(); ++i) {
+	    req.plugin->setParameter(i->first, i->second);
+	}
+
+	if (req.configuration.currentProgram != "") {
+	    req.plugin->selectProgram(req.configuration.currentProgram);
+	}
+
+	ConfigurationResponse response;
+
+	response.plugin = req.plugin;
+    
+	if (req.plugin->initialise(req.configuration.channelCount,
+				   req.configuration.stepSize,
+				   req.configuration.blockSize)) {
+	    response.outputs = req.plugin->getOutputDescriptors();
+	}
+
+	return response;
+    }
+};
+
+}
+
+#endif