libs/vamp-plugins/Onset.h

   1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
   2
   3 /*
   4     Vamp feature extraction plugins using Paul Brossier's Aubio library.
   5
   6     Centre for Digital Music, Queen Mary, University of London.
   7     This file copyright 2006 Chris Cannam.
   8
   9     This program is free software; you can redistribute it and/or
  10     modify it under the terms of the GNU General Public License as
  11     published by the Free Software Foundation; either version 2 of the
  12     License, or (at your option) any later version.  See the file
  13     COPYING included with this distribution for more information.
  14
  15 */
  16
  17 #ifndef _ONSET_PLUGIN_H_
  18 #define _ONSET_PLUGIN_H_
  19
  20 #include "vamp-sdk/Plugin.h"
  21 #include <aubio/aubio.h>
  22
  23 class Onset : public Vamp::Plugin
  24 {
  25 public:
  26     Onset(float inputSampleRate);
  27     virtual ~Onset();
  28
  29     bool initialise(size_t channels, size_t stepSize, size_t blockSize);
  30     void reset();
  31
  32     InputDomain getInputDomain() const { return TimeDomain; }
  33
  34     std::string getIdentifier() const;
  35     std::string getName() const;
  36     std::string getDescription() const;
  37     std::string getMaker() const;
  38     int getPluginVersion() const;
  39     std::string getCopyright() const;
  40
  41     ParameterList getParameterDescriptors() const;
  42     float getParameter(std::string) const;
  43     void setParameter(std::string, float);
  44
  45     size_t getPreferredStepSize() const;
  46     size_t getPreferredBlockSize() const;
  47
  48     OutputList getOutputDescriptors() const;
  49
  50     FeatureSet process(const float *const *inputBuffers,
  51                        Vamp::RealTime timestamp);
  52
  53     FeatureSet getRemainingFeatures();
  54
  55 protected:
  56     fvec_t *m_ibuf;
  57     cvec_t *m_fftgrain;
  58     fvec_t *m_onset;
  59     aubio_pvoc_t *m_pv;
  60     aubio_pickpeak_t *m_peakpick;
  61     aubio_onsetdetection_t *m_onsetdet;
  62     aubio_onsetdetection_type m_onsettype;
  63     float m_threshold;
  64     float m_silence;
  65     size_t m_stepSize;
  66     size_t m_blockSize;
  67     size_t m_channelCount;
  68     Vamp::RealTime m_delay;
  69     Vamp::RealTime m_lastOnset;
  70 };
  71
  72
  73 #endif