63 lines
1.7 KiB
C
63 lines
1.7 KiB
C
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#ifndef _SEGMENTER_H
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#define _SEGMENTER_H
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/*
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* Segmenter.h
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* soundbite
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*
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* Created by Mark Levy on 23/03/2006.
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* Copyright 2006 Centre for Digital Music, Queen Mary, University of London.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version. See the file
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COPYING included with this distribution for more information.
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*
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*/
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#include <vector>
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#include <iostream>
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using std::vector;
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using std::ostream;
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class Segment
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{
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public:
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int start; // in samples
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int end;
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int type;
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};
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class Segmentation
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{
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public:
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int nsegtypes; // number of segment types, so possible types are {0,1,...,nsegtypes-1}
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int samplerate;
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vector<Segment> segments;
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};
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ostream& operator<<(ostream& os, const Segmentation& s);
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class Segmenter
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{
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public:
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Segmenter() {}
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virtual ~Segmenter() {}
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virtual void initialise(int samplerate) = 0; // must be called before any other methods
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virtual int getWindowsize() = 0; // required window size for calls to extractFeatures()
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virtual int getHopsize() = 0; // required hop size for calls to extractFeatures()
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virtual void extractFeatures(const double* samples, int nsamples) = 0;
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virtual void segment() = 0; // call once all the features have been extracted
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virtual void segment(int m) = 0; // specify desired number of segment-types
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virtual void clear() { features.clear(); }
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const Segmentation& getSegmentation() const { return segmentation; }
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protected:
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vector<vector<double> > features;
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Segmentation segmentation;
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int samplerate;
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};
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#endif
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