view src/MatchVampPlugin.h @ 86:f07b9b7f1ab6 refactors

Previous commit was a mistake: the ahead-of-time business is in Finder::getExpandDirection. In fact we were failing to swap advance directions in forward path when writing to the "other" finder. This does not actually affect the backward path calculation, but it does mean we can restore the sanity check.

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

/*
    Vamp feature extraction plugin using the MATCH audio alignment
    algorithm.

    Centre for Digital Music, Queen Mary, University of London.
    This file copyright 2007 Simon Dixon, Chris Cannam and QMUL.
    
    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 _MATCH_VAMP_PLUGIN_H_
#define _MATCH_VAMP_PLUGIN_H_

#include <vamp-sdk/Plugin.h>

#ifdef _WIN32
#include <windows.h>
#else
#include <pthread.h>
#endif

#include "Matcher.h"
#include "FeatureExtractor.h"

class MatchFeatureFeeder;

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

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

    InputDomain getInputDomain() const { return FrequencyDomain; }

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

    size_t getMinChannelCount() const { return 2; }
    size_t getMaxChannelCount() const { return 2; }

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

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

    OutputList getOutputDescriptors() const;

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

    FeatureSet getRemainingFeatures();

protected:
    void createMatchers();
    bool aboveThreshold(const float *);

    Matcher *m_pm1;
    Matcher *m_pm2;
    FeatureExtractor *m_fe1;
    FeatureExtractor *m_fe2;
    MatchFeatureFeeder *m_feeder;

    Vamp::RealTime m_startTime;
    int m_stepSize;
    float m_stepTime;
    int m_blockSize;
    bool m_serialise;
    bool m_begin;
    bool m_locked;
    bool m_smooth;

    int m_frameNo;
    int m_lastFrameIn1;
    int m_lastFrameIn2;
    
    Matcher::Parameters m_params;
    Matcher::Parameters m_defaultParams;

    FeatureExtractor::Parameters m_feParams;
    FeatureExtractor::Parameters m_defaultFeParams;

    mutable int m_pathOutNo;
    mutable int m_abOutNo;
    mutable int m_baOutNo;
    mutable int m_abDivOutNo;
    mutable int m_abRatioOutNo;
    mutable int m_aFeaturesOutNo;
    mutable int m_bFeaturesOutNo;

#ifdef _WIN32
    static HANDLE m_serialisingMutex;
#else 
    static pthread_mutex_t m_serialisingMutex;
#endif

    static bool m_serialisingMutexInitialised;
};


#endif