401 lines
9.7 KiB
C++
401 lines
9.7 KiB
C++
/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
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/*
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Vamp feature extraction plugins using Paul Brossier's Aubio library.
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Centre for Digital Music, Queen Mary, University of London.
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This file copyright 2006 Chris Cannam.
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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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#ifdef COMPILER_MSVC
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#include <ardourext/float_cast.h>
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#endif
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#include <math.h>
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#include "Onset.h"
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using std::string;
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using std::vector;
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using std::cerr;
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using std::endl;
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#ifdef HAVE_AUBIO4
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const char *getAubioNameForOnsetType(OnsetType t)
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{
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// In the same order as the enum elements in the header
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static const char *const names[] = {
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"energy", "specdiff", "hfc", "complex", "phase", "kl", "mkl", "specflux"
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};
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return names[(int)t];
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}
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#endif
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Onset::Onset(float inputSampleRate) :
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Plugin(inputSampleRate),
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m_ibuf(0),
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m_onset(0),
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#ifdef HAVE_AUBIO4
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m_onsetdet(0),
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m_onsettype(OnsetComplex),
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m_minioi(4),
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m_silence(-70),
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#else
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m_fftgrain(0),
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m_pv(0),
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m_peakpick(0),
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m_onsetdet(0),
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m_onsettype(aubio_onset_complex),
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m_channelCount(1),
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m_silence(-90),
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#endif
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m_threshold(0.3)
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{
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}
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Onset::~Onset()
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{
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#ifdef HAVE_AUBIO4
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if (m_onsetdet) del_aubio_onset(m_onsetdet);
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#else
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if (m_onsetdet) aubio_onsetdetection_free(m_onsetdet);
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if (m_fftgrain) del_cvec(m_fftgrain);
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if (m_pv) del_aubio_pvoc(m_pv);
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if (m_peakpick) del_aubio_peakpicker(m_peakpick);
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#endif
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if (m_ibuf) del_fvec(m_ibuf);
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if (m_onset) del_fvec(m_onset);
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}
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string
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Onset::getIdentifier() const
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{
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return "aubioonset";
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}
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string
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Onset::getName() const
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{
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return "Aubio Onset Detector";
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}
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string
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Onset::getDescription() const
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{
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return "Estimate note onset times";
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}
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string
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Onset::getMaker() const
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{
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return "Paul Brossier (plugin by Chris Cannam)";
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}
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int
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Onset::getPluginVersion() const
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{
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#ifdef HAVE_AUBIO4
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return 2;
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#else
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return 1;
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#endif
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}
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string
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Onset::getCopyright() const
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{
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return "GPL";
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}
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bool
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Onset::initialise(size_t channels, size_t stepSize, size_t blockSize)
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{
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m_stepSize = stepSize;
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m_blockSize = blockSize;
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#ifdef HAVE_AUBIO4
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if (channels != 1) {
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std::cerr << "Onset::initialise: channels must be 1" << std::endl;
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return false;
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}
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m_ibuf = new_fvec(stepSize);
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m_onset = new_fvec(1);
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reset();
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#else
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m_channelCount = channels;
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m_ibuf = new_fvec(stepSize, channels);
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m_onset = new_fvec(1, channels);
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m_fftgrain = new_cvec(blockSize, channels);
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m_pv = new_aubio_pvoc(blockSize, stepSize, channels);
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m_peakpick = new_aubio_peakpicker(m_threshold);
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m_onsetdet = new_aubio_onsetdetection(m_onsettype, blockSize, channels);
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m_delay = Vamp::RealTime::frame2RealTime(4 * stepSize,
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lrintf(m_inputSampleRate));
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m_lastOnset = Vamp::RealTime::zeroTime - m_delay - m_delay;
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#endif
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return true;
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}
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void
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Onset::reset()
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{
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#ifdef HAVE_AUBIO4
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if (m_onsetdet) del_aubio_onset(m_onsetdet);
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m_onsetdet = new_aubio_onset
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(const_cast<char *>(getAubioNameForOnsetType(m_onsettype)),
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m_blockSize,
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m_stepSize,
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lrintf(m_inputSampleRate));
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aubio_onset_set_threshold(m_onsetdet, m_threshold);
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aubio_onset_set_silence(m_onsetdet, m_silence);
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aubio_onset_set_minioi(m_onsetdet, m_minioi);
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m_delay = Vamp::RealTime::frame2RealTime(4 * m_stepSize,
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lrintf(m_inputSampleRate));
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m_lastOnset = Vamp::RealTime::zeroTime - m_delay - m_delay;
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#else
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if (m_onsetdet) aubio_onsetdetection_free(m_onsetdet);
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if (m_peakpick) del_aubio_peakpicker(m_peakpick);
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m_peakpick = new_aubio_peakpicker(m_threshold);
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m_onsetdet = new_aubio_onsetdetection(m_onsettype, m_blockSize, m_channelCount);
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#endif
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}
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size_t
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Onset::getPreferredStepSize() const
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{
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return 512;
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}
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size_t
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Onset::getPreferredBlockSize() const
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{
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return 2 * getPreferredStepSize();
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}
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Onset::ParameterList
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Onset::getParameterDescriptors() const
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{
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ParameterList list;
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ParameterDescriptor desc;
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desc.identifier = "onsettype";
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desc.name = "Onset Detection Function Type";
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desc.minValue = 0;
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#ifdef HAVE_AUBIO4
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desc.maxValue = 7;
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desc.defaultValue = (int)OnsetComplex;
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#else
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desc.maxValue = 6;
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desc.defaultValue = (int)aubio_onset_complex;
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#endif
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desc.isQuantized = true;
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desc.quantizeStep = 1;
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desc.valueNames.push_back("Energy Based");
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desc.valueNames.push_back("Spectral Difference");
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desc.valueNames.push_back("High-Frequency Content");
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desc.valueNames.push_back("Complex Domain");
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desc.valueNames.push_back("Phase Deviation");
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desc.valueNames.push_back("Kullback-Liebler");
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desc.valueNames.push_back("Modified Kullback-Liebler");
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#ifdef HAVE_AUBIO4
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desc.valueNames.push_back("Spectral Flux");
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#endif
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list.push_back(desc);
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desc = ParameterDescriptor();
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desc.identifier = "peakpickthreshold";
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desc.name = "Peak Picker Threshold";
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desc.minValue = 0;
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desc.maxValue = 1;
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desc.defaultValue = 0.3;
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desc.isQuantized = false;
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list.push_back(desc);
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desc = ParameterDescriptor();
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desc.identifier = "silencethreshold";
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desc.name = "Silence Threshold";
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desc.minValue = -120;
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desc.maxValue = 0;
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#ifdef HAVE_AUBIO4
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desc.defaultValue = -70;
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#else
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desc.defaultValue = -90;
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#endif
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desc.unit = "dB";
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desc.isQuantized = false;
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list.push_back(desc);
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#ifdef HAVE_AUBIO4
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desc = ParameterDescriptor();
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desc.identifier = "minioi";
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desc.name = "Minimum Inter-Onset Interval";
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desc.minValue = 0;
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desc.maxValue = 40;
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desc.defaultValue = 4;
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desc.unit = "ms";
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desc.isQuantized = true;
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desc.quantizeStep = 1;
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list.push_back(desc);
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#endif
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return list;
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}
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float
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Onset::getParameter(std::string param) const
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{
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if (param == "onsettype") {
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return m_onsettype;
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} else if (param == "peakpickthreshold") {
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return m_threshold;
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} else if (param == "silencethreshold") {
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return m_silence;
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#ifdef HAVE_AUBIO4
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} else if (param == "minioi") {
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return m_minioi;
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#endif
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} else {
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return 0.0;
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}
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}
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void
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Onset::setParameter(std::string param, float value)
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{
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if (param == "onsettype") {
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switch (lrintf(value)) {
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#ifdef HAVE_AUBIO4
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case 0: m_onsettype = OnsetEnergy; break;
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case 1: m_onsettype = OnsetSpecDiff; break;
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case 2: m_onsettype = OnsetHFC; break;
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case 3: m_onsettype = OnsetComplex; break;
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case 4: m_onsettype = OnsetPhase; break;
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case 5: m_onsettype = OnsetKL; break;
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case 6: m_onsettype = OnsetMKL; break;
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case 7: m_onsettype = OnsetSpecFlux; break;
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#else
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case 0: m_onsettype = aubio_onset_energy; break;
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case 1: m_onsettype = aubio_onset_specdiff; break;
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case 2: m_onsettype = aubio_onset_hfc; break;
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case 3: m_onsettype = aubio_onset_complex; break;
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case 4: m_onsettype = aubio_onset_phase; break;
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case 5: m_onsettype = aubio_onset_kl; break;
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case 6: m_onsettype = aubio_onset_mkl; break;
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#endif
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}
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} else if (param == "peakpickthreshold") {
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m_threshold = value;
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} else if (param == "silencethreshold") {
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m_silence = value;
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#ifdef HAVE_AUBIO4
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} else if (param == "minioi") {
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m_minioi = value;
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#endif
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}
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}
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Onset::OutputList
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Onset::getOutputDescriptors() const
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{
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OutputList list;
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OutputDescriptor d;
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d.identifier = "onsets";
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d.name = "Onsets";
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d.unit = "";
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d.hasFixedBinCount = true;
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d.binCount = 0;
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d.sampleType = OutputDescriptor::VariableSampleRate;
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d.sampleRate = 0;
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list.push_back(d);
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#ifndef HAVE_AUBIO4
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d = OutputDescriptor();
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d.identifier = "detectionfunction";
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d.name = "Onset Detection Function";
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d.unit = "";
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d.hasFixedBinCount = true;
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d.binCount = m_channelCount;
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d.hasKnownExtents = false;
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d.isQuantized = false;
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d.sampleType = OutputDescriptor::OneSamplePerStep;
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list.push_back(d);
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#endif
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return list;
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}
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Onset::FeatureSet
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Onset::process(const float *const *inputBuffers,
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Vamp::RealTime timestamp)
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{
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#ifdef HAVE_AUBIO4
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for (size_t i = 0; i < m_stepSize; ++i) {
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fvec_set_sample(m_ibuf, inputBuffers[0][i], i);
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}
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aubio_onset_do(m_onsetdet, m_ibuf, m_onset);
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bool isonset = m_onset->data[0];
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#else
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for (size_t i = 0; i < m_stepSize; ++i) {
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for (size_t j = 0; j < m_channelCount; ++j) {
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fvec_write_sample(m_ibuf, inputBuffers[j][i], j, i);
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}
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}
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aubio_pvoc_do(m_pv, m_ibuf, m_fftgrain);
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aubio_onsetdetection(m_onsetdet, m_fftgrain, m_onset);
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bool isonset = aubio_peakpick_pimrt(m_onset, m_peakpick);
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if (isonset) {
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if (aubio_silence_detection(m_ibuf, m_silence)) {
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isonset = false;
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}
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}
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#endif
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FeatureSet returnFeatures;
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if (isonset) {
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if (timestamp - m_lastOnset >= m_delay) {
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Feature onsettime;
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onsettime.hasTimestamp = true;
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if (timestamp < m_delay) timestamp = m_delay;
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onsettime.timestamp = timestamp - m_delay;
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returnFeatures[0].push_back(onsettime);
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m_lastOnset = timestamp;
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}
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}
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#ifndef HAVE_AUBIO4
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Feature feature;
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for (size_t j = 0; j < m_channelCount; ++j) {
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feature.values.push_back(m_onset->data[j][0]);
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}
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returnFeatures[1].push_back(feature);
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#endif
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return returnFeatures;
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}
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Onset::FeatureSet
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Onset::getRemainingFeatures()
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{
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return FeatureSet();
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}
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