comparison src/BulkTuningDifference.h @ 47:f28b34e7ce8d

Add BulkTuningDifference plugin

+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*
+  Centre for Digital Music, Queen Mary University of London.
+    
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License as
+  published by the Free Software Foundation; either version 2 of the
+  License, or (at your option) any later version.  See the file
+  COPYING included with this distribution for more information.
+*/
+
+#ifndef BULK_TUNING_DIFFERENCE_H
+#define BULK_TUNING_DIFFERENCE_H
+
+#include <vamp-sdk/Plugin.h>
+
+#include <cq/Chromagram.h>
+
+#include <memory>
+
+using std::string;
+using std::vector;
+
+class BulkTuningDifference : public Vamp::Plugin
+{
+public:
+    BulkTuningDifference(float inputSampleRate);
+    virtual ~BulkTuningDifference();
+
+    string getIdentifier() const;
+    string getName() const;
+    string getDescription() const;
+    string getMaker() const;
+    int getPluginVersion() const;
+    string getCopyright() const;
+
+    InputDomain getInputDomain() const;
+    size_t getPreferredBlockSize() const;
+    size_t getPreferredStepSize() const;
+    size_t getMinChannelCount() const;
+    size_t getMaxChannelCount() const;
+
+    ParameterList getParameterDescriptors() const;
+    float getParameter(string identifier) const;
+    void setParameter(string identifier, float value);
+
+    ProgramList getPrograms() const;
+    string getCurrentProgram() const;
+    void selectProgram(string name);
+
+    OutputList getOutputDescriptors() const;
+
+    bool initialise(size_t channels, size_t stepSize, size_t blockSize);
+    void reset();
+
+    FeatureSet process(const float *const *inputBuffers,
+                       Vamp::RealTime timestamp);
+
+    FeatureSet getRemainingFeatures();
+
+protected:
+    typedef vector<float> Signal;
+    typedef vector<double> TFeature;
+
+    int m_channelCount;
+    int m_bpo;
+    std::unique_ptr<Chromagram> m_refChroma;
+    TFeature m_refTotals;
+    TFeature m_refFeature;
+    std::vector<Signal> m_others;
+    int m_blockSize;
+    int m_frameCount;
+    float m_maxDuration;
+    int m_maxSemis;
+    bool m_fineTuning;
+
+    Chromagram::Parameters paramsForTuningFrequency(double hz) const;
+    TFeature computeFeatureFromTotals(const TFeature &totals) const;
+    TFeature computeFeatureFromSignal(const Signal &signal, double hz) const;
+    void rotateFeature(TFeature &feature, int rotation) const;
+    double featureDistance(const TFeature &other, int rotation = 0) const;
+    int findBestRotation(const TFeature &other) const;
+    std::pair<int, double> findFineFrequency(int channel, int coarseCents);
+    void getRemainingFeaturesForChannel(int channel, FeatureSet &fs);
+
+    mutable std::map<string, int> m_outputs;
+};
+
+
+#endif