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-rw-r--r--libs/vamp-plugins/Onset.cpp280
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diff --git a/libs/vamp-plugins/Onset.cpp b/libs/vamp-plugins/Onset.cpp
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+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
+
+/*
+ Vamp feature extraction plugins using Paul Brossier's Aubio library.
+
+ Centre for Digital Music, Queen Mary, University of London.
+ This file copyright 2006 Chris Cannam.
+
+ 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.
+
+*/
+
+#include <math.h>
+#include "Onset.h"
+
+using std::string;
+using std::vector;
+using std::cerr;
+using std::endl;
+
+Onset::Onset(float inputSampleRate) :
+ Plugin(inputSampleRate),
+ m_ibuf(0),
+ m_fftgrain(0),
+ m_onset(0),
+ m_pv(0),
+ m_peakpick(0),
+ m_onsetdet(0),
+ m_onsettype(aubio_onset_complex),
+ m_threshold(0.3),
+ m_silence(-90),
+ m_channelCount(1)
+{
+}
+
+Onset::~Onset()
+{
+ if (m_onsetdet) aubio_onsetdetection_free(m_onsetdet);
+ if (m_ibuf) del_fvec(m_ibuf);
+ if (m_onset) del_fvec(m_onset);
+ if (m_fftgrain) del_cvec(m_fftgrain);
+ if (m_pv) del_aubio_pvoc(m_pv);
+ if (m_peakpick) del_aubio_peakpicker(m_peakpick);
+}
+
+string
+Onset::getIdentifier() const
+{
+ return "aubioonset";
+}
+
+string
+Onset::getName() const
+{
+ return "Aubio Onset Detector";
+}
+
+string
+Onset::getDescription() const
+{
+ return "Estimate note onset times";
+}
+
+string
+Onset::getMaker() const
+{
+ return "Paul Brossier (plugin by Chris Cannam)";
+}
+
+int
+Onset::getPluginVersion() const
+{
+ return 1;
+}
+
+string
+Onset::getCopyright() const
+{
+ return "GPL";
+}
+
+bool
+Onset::initialise(size_t channels, size_t stepSize, size_t blockSize)
+{
+ m_channelCount = channels;
+ m_stepSize = stepSize;
+ m_blockSize = blockSize;
+
+ m_ibuf = new_fvec(stepSize, channels);
+ m_onset = new_fvec(1, channels);
+ m_fftgrain = new_cvec(blockSize, channels);
+ m_pv = new_aubio_pvoc(blockSize, stepSize, channels);
+ m_peakpick = new_aubio_peakpicker(m_threshold);
+
+ m_onsetdet = new_aubio_onsetdetection(m_onsettype, blockSize, channels);
+
+ m_delay = Vamp::RealTime::frame2RealTime(4 * stepSize,
+ lrintf(m_inputSampleRate));
+
+ m_lastOnset = Vamp::RealTime::zeroTime - m_delay - m_delay;
+
+ return true;
+}
+
+void
+Onset::reset()
+{
+}
+
+size_t
+Onset::getPreferredStepSize() const
+{
+ return 512;
+}
+
+size_t
+Onset::getPreferredBlockSize() const
+{
+ return 2 * getPreferredStepSize();
+}
+
+Onset::ParameterList
+Onset::getParameterDescriptors() const
+{
+ ParameterList list;
+
+ ParameterDescriptor desc;
+ desc.identifier = "onsettype";
+ desc.name = "Onset Detection Function Type";
+ desc.minValue = 0;
+ desc.maxValue = 6;
+ desc.defaultValue = (int)aubio_onset_complex;
+ desc.isQuantized = true;
+ desc.quantizeStep = 1;
+ desc.valueNames.push_back("Energy Based");
+ desc.valueNames.push_back("Spectral Difference");
+ desc.valueNames.push_back("High-Frequency Content");
+ desc.valueNames.push_back("Complex Domain");
+ desc.valueNames.push_back("Phase Deviation");
+ desc.valueNames.push_back("Kullback-Liebler");
+ desc.valueNames.push_back("Modified Kullback-Liebler");
+ list.push_back(desc);
+
+ desc = ParameterDescriptor();
+ desc.identifier = "peakpickthreshold";
+ desc.name = "Peak Picker Threshold";
+ desc.minValue = 0;
+ desc.maxValue = 1;
+ desc.defaultValue = 0.3;
+ desc.isQuantized = false;
+ list.push_back(desc);
+
+ desc = ParameterDescriptor();
+ desc.identifier = "silencethreshold";
+ desc.name = "Silence Threshold";
+ desc.minValue = -120;
+ desc.maxValue = 0;
+ desc.defaultValue = -90;
+ desc.unit = "dB";
+ desc.isQuantized = false;
+ list.push_back(desc);
+
+ return list;
+}
+
+float
+Onset::getParameter(std::string param) const
+{
+ if (param == "onsettype") {
+ return m_onsettype;
+ } else if (param == "peakpickthreshold") {
+ return m_threshold;
+ } else if (param == "silencethreshold") {
+ return m_silence;
+ } else {
+ return 0.0;
+ }
+}
+
+void
+Onset::setParameter(std::string param, float value)
+{
+ if (param == "onsettype") {
+ switch (lrintf(value)) {
+ case 0: m_onsettype = aubio_onset_energy; break;
+ case 1: m_onsettype = aubio_onset_specdiff; break;
+ case 2: m_onsettype = aubio_onset_hfc; break;
+ case 3: m_onsettype = aubio_onset_complex; break;
+ case 4: m_onsettype = aubio_onset_phase; break;
+ case 5: m_onsettype = aubio_onset_kl; break;
+ case 6: m_onsettype = aubio_onset_mkl; break;
+ }
+ } else if (param == "peakpickthreshold") {
+ m_threshold = value;
+ } else if (param == "silencethreshold") {
+ m_silence = value;
+ }
+}
+
+Onset::OutputList
+Onset::getOutputDescriptors() const
+{
+ OutputList list;
+
+ OutputDescriptor d;
+ d.identifier = "onsets";
+ d.name = "Onsets";
+ d.unit = "";
+ d.hasFixedBinCount = true;
+ d.binCount = 0;
+ d.sampleType = OutputDescriptor::VariableSampleRate;
+ d.sampleRate = 0;
+ list.push_back(d);
+
+ d = OutputDescriptor();
+ d.identifier = "detectionfunction";
+ d.name = "Onset Detection Function";
+ d.unit = "";
+ d.hasFixedBinCount = true;
+ d.binCount = m_channelCount;
+ d.hasKnownExtents = false;
+ d.isQuantized = false;
+ d.sampleType = OutputDescriptor::OneSamplePerStep;
+ list.push_back(d);
+
+ return list;
+}
+
+Onset::FeatureSet
+Onset::process(const float *const *inputBuffers,
+ Vamp::RealTime timestamp)
+{
+ for (size_t i = 0; i < m_stepSize; ++i) {
+ for (size_t j = 0; j < m_channelCount; ++j) {
+ fvec_write_sample(m_ibuf, inputBuffers[j][i], j, i);
+ }
+ }
+
+ aubio_pvoc_do(m_pv, m_ibuf, m_fftgrain);
+ aubio_onsetdetection(m_onsetdet, m_fftgrain, m_onset);
+
+ bool isonset = aubio_peakpick_pimrt(m_onset, m_peakpick);
+
+ if (isonset) {
+ if (aubio_silence_detection(m_ibuf, m_silence)) {
+ isonset = false;
+ }
+ }
+
+ FeatureSet returnFeatures;
+
+ if (isonset) {
+ if (timestamp - m_lastOnset >= m_delay) {
+ Feature onsettime;
+ onsettime.hasTimestamp = true;
+ if (timestamp < m_delay) timestamp = m_delay;
+ onsettime.timestamp = timestamp - m_delay;
+ returnFeatures[0].push_back(onsettime);
+ m_lastOnset = timestamp;
+ }
+ }
+ Feature feature;
+ for (size_t j = 0; j < m_channelCount; ++j) {
+ feature.values.push_back(m_onset->data[j][0]);
+ }
+ returnFeatures[1].push_back(feature);
+
+ return returnFeatures;
+}
+
+Onset::FeatureSet
+Onset::getRemainingFeatures()
+{
+ return FeatureSet();
+}
+