annotate examples/FixedTempoEstimator.h @ 354:e85513153c71

Initialise rate to 0. Otherwise there's a danger plugins will change the SampleType (e.g. to VariableSampleRate) but not set the rate because they don't think they need it (when in fact it needs to be set to 0)

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    Vamp

    An API for audio analysis and feature extraction plugins.

    Centre for Digital Music, Queen Mary, University of London.
    Copyright 2006-2009 Chris Cannam and QMUL.
  
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*/

#ifndef _FIXED_TEMPO_ESTIMATOR_PLUGIN_H_
#define _FIXED_TEMPO_ESTIMATOR_PLUGIN_H_

#include "vamp-sdk/Plugin.h"

/**
 * Example plugin that estimates the tempo of a short fixed-tempo sample.
 */

class FixedTempoEstimator : public Vamp::Plugin
{
public:
    FixedTempoEstimator(float inputSampleRate);
    virtual ~FixedTempoEstimator();

    bool initialise(size_t channels, size_t stepSize, size_t blockSize);
    void reset();

    InputDomain getInputDomain() const { return FrequencyDomain; }

    std::string getIdentifier() const;
    std::string getName() const;
    std::string getDescription() const;
    std::string getMaker() const;
    int getPluginVersion() const;
    std::string getCopyright() const;

    size_t getPreferredStepSize() const;
    size_t getPreferredBlockSize() const;

    ParameterList getParameterDescriptors() const;
    float getParameter(std::string id) const;
    void setParameter(std::string id, float value);

    OutputList getOutputDescriptors() const;

    FeatureSet process(const float *const *inputBuffers,
                       Vamp::RealTime timestamp);

    FeatureSet getRemainingFeatures();

protected:
    class D;
    D *m_d;
};


#endif