Chris@0: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@0: 
Chris@0: /*
Chris@0:     Sonic Annotator
Chris@0:     A utility for batch feature extraction from audio files.
Chris@0:     Mark Levy, Chris Sutton and Chris Cannam, Queen Mary, University of London.
Chris@0:     Copyright 2007-2008 QMUL.
Chris@0: 
Chris@0:     This program is free software; you can redistribute it and/or
Chris@0:     modify it under the terms of the GNU General Public License as
Chris@0:     published by the Free Software Foundation; either version 2 of the
Chris@0:     License, or (at your option) any later version.  See the file
Chris@0:     COPYING included with this distribution for more information.
Chris@0: */
Chris@0: 
Chris@0: #ifndef _FEATURE_EXTRACTION_MANAGER_H_
Chris@0: #define _FEATURE_EXTRACTION_MANAGER_H_
Chris@0: 
Chris@0: #include <vector>
Chris@0: #include <set>
Chris@0: #include <string>
Chris@0: 
Chris@0: #include <vamp-hostsdk/Plugin.h>
Chris@0: #include <vamp-hostsdk/PluginSummarisingAdapter.h>
Chris@0: #include <transform/Transform.h>
Chris@0: 
Chris@0: using std::vector;
Chris@0: using std::set;
Chris@0: using std::string;
Chris@0: using std::pair;
Chris@0: using std::map;
Chris@0: 
Chris@0: class FeatureWriter;
Chris@0: 
Chris@0: class FeatureExtractionManager
Chris@0: {
Chris@0: public:
Chris@0:     FeatureExtractionManager();
Chris@0:     virtual ~FeatureExtractionManager();
Chris@0: 
Chris@0:     void setChannels(int channels);
Chris@0:     void setDefaultSampleRate(int sampleRate);
Chris@0: 
Chris@0:     bool setSummaryTypes(const set<string> &summaryTypes,
Chris@0:                          bool summariesOnly,
Chris@0:                          const Vamp::HostExt::PluginSummarisingAdapter::SegmentBoundaries &boundaries);
Chris@0: 
Chris@0:     bool addFeatureExtractor(Transform transform,
Chris@0:                              const vector<FeatureWriter*> &writers);
Chris@0: 
Chris@0:     bool addFeatureExtractorFromFile(QString transformXmlFile,
Chris@0:                                      const vector<FeatureWriter*> &writers);
Chris@0: 
Chris@0:     bool addDefaultFeatureExtractor(TransformId transformId,
Chris@0:                                     const vector<FeatureWriter*> &writers);
Chris@0: 
Chris@0:     void extractFeatures(QString audioSource);
Chris@0: 
Chris@0: private:
Chris@0:     // A plugin may have many outputs, so we can have more than one
Chris@0:     // transform requested for a single plugin.  The things we want to
Chris@0:     // run in our process loop are plugins rather than their outputs,
Chris@0:     // so we maintain a map from the plugins to the transforms desired
Chris@0:     // of them and then iterate through this map
Chris@0: 
Chris@0:     typedef map<Transform, vector<FeatureWriter *> > TransformWriterMap;
Chris@0:     typedef map<Vamp::Plugin *, TransformWriterMap> PluginMap;
Chris@0:     PluginMap m_plugins;
Chris@0:         
Chris@0:     // And a map back from transforms to their plugins.  Note that
Chris@0:     // this is keyed by transform, not transform ID -- two differently
Chris@0:     // configured transforms with the same ID must use different
Chris@0:     // plugin instances.
Chris@0: 
Chris@0:     typedef map<Transform, Vamp::Plugin *> TransformPluginMap;
Chris@0:     TransformPluginMap m_transformPluginMap;
Chris@0: 
Chris@0:     // Cache the plugin output descriptors, mapping from plugin to a
Chris@0:     // map from output ID to output descriptor.
Chris@0:     typedef map<string, Vamp::Plugin::OutputDescriptor> OutputMap;
Chris@0:     typedef map<Vamp::Plugin *, OutputMap> PluginOutputMap;
Chris@0:     PluginOutputMap m_pluginOutputs;
Chris@0: 
Chris@0:     // Map from plugin output identifier to plugin output index
Chris@0:     typedef map<string, int> OutputIndexMap;
Chris@0:     OutputIndexMap m_pluginOutputIndices;
Chris@0: 
Chris@0:     typedef set<std::string> SummaryNameSet;
Chris@0:     SummaryNameSet m_summaries;
Chris@0:     bool m_summariesOnly;
Chris@0:     Vamp::HostExt::PluginSummarisingAdapter::SegmentBoundaries m_boundaries;
Chris@0: 
Chris@0:     void writeSummaries(QString audioSource, Vamp::Plugin *);
Chris@0: 
Chris@0:     void writeFeatures(QString audioSource,
Chris@0:                        Vamp::Plugin *,
Chris@0:                        const Vamp::Plugin::FeatureSet &,
Chris@0:                        Transform::SummaryType summaryType =
Chris@0:                        Transform::NoSummary);
Chris@0:     void finish();
Chris@0: 
Chris@0:     int m_blockSize;
Chris@0:     int m_defaultSampleRate;
Chris@0:     int m_sampleRate;
Chris@0:     int m_channels;
Chris@0:     
Chris@0:     void print(Transform transform) const;
Chris@0: };
Chris@0: 
Chris@0: #endif