--- /dev/null
+/* -*- 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.
+
+ Copyright (C) 2006-2015 Paul Brossier <piem@aubio.org>
+
+ This file is part of vamp-aubio.
+
+ vamp-aubio 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 3 of the License, or
+ (at your option) any later version.
+
+ vamp-aubio is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with aubio. If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+#include <math.h>
+#include "SpecDesc.h"
+
+using std::string;
+using std::vector;
+using std::cerr;
+using std::endl;
+
+SpecDesc::SpecDesc(float inputSampleRate) :
+ Plugin(inputSampleRate),
+ m_ibuf(0),
+ m_pvoc(0),
+ m_ispec(0),
+ m_specdesc(0),
+ m_out(0),
+ m_specdesctype(SpecDescFlux)
+{
+}
+
+SpecDesc::~SpecDesc()
+{
+ if (m_specdesc) del_aubio_specdesc(m_specdesc);
+ if (m_pvoc) del_aubio_pvoc(m_pvoc);
+ if (m_ibuf) del_fvec(m_ibuf);
+ if (m_ispec) del_cvec(m_ispec);
+ if (m_out) del_fvec(m_out);
+}
+
+string
+SpecDesc::getIdentifier() const
+{
+ return "aubiospecdesc";
+}
+
+string
+SpecDesc::getName() const
+{
+ return "Aubio Spectral Descriptor";
+}
+
+string
+SpecDesc::getDescription() const
+{
+ return "Compute spectral descriptor";
+}
+
+string
+SpecDesc::getMaker() const
+{
+ return "Paul Brossier";
+}
+
+int
+SpecDesc::getPluginVersion() const
+{
+ return 2;
+}
+
+string
+SpecDesc::getCopyright() const
+{
+ return "GPL";
+}
+
+bool
+SpecDesc::initialise(size_t channels, size_t stepSize, size_t blockSize)
+{
+ if (channels != 1) {
+ std::cerr << "SpecDesc::initialise: channels must be 1" << std::endl;
+ return false;
+ }
+
+ m_stepSize = stepSize;
+ m_blockSize = blockSize;
+
+ m_ibuf = new_fvec(stepSize);
+ m_ispec = new_cvec(blockSize);
+ m_out = new_fvec(1);
+
+ reset();
+
+ return true;
+}
+
+void
+SpecDesc::reset()
+{
+ if (m_pvoc) del_aubio_pvoc(m_pvoc);
+ if (m_specdesc) del_aubio_specdesc(m_specdesc);
+
+ m_specdesc = new_aubio_specdesc
+ (const_cast<char *>(getAubioNameForSpecDescType(m_specdesctype)),
+ m_blockSize);
+
+ m_pvoc = new_aubio_pvoc(m_blockSize, m_stepSize);
+}
+
+size_t
+SpecDesc::getPreferredStepSize() const
+{
+ return 512;
+}
+
+size_t
+SpecDesc::getPreferredBlockSize() const
+{
+ return 2 * getPreferredStepSize();
+}
+
+SpecDesc::ParameterList
+SpecDesc::getParameterDescriptors() const
+{
+ ParameterList list;
+
+ ParameterDescriptor desc;
+ desc.identifier = "specdesctype";
+ desc.name = "Spectral Descriptor Type";
+ desc.description = "Type of spectral descriptor to use";
+ desc.minValue = 0;
+ desc.maxValue = 7;
+ desc.defaultValue = (int)SpecDescFlux;
+ desc.isQuantized = true;
+ desc.quantizeStep = 1;
+ desc.valueNames.push_back("Spectral Flux");
+ desc.valueNames.push_back("Spectral Centroid");
+ desc.valueNames.push_back("Spectral Spread");
+ desc.valueNames.push_back("Spectral Skewness");
+ desc.valueNames.push_back("Spectral Kurtosis");
+ desc.valueNames.push_back("Spectral Slope");
+ desc.valueNames.push_back("Spectral Decrease");
+ desc.valueNames.push_back("Spectral Rolloff");
+ list.push_back(desc);
+
+ return list;
+}
+
+float
+SpecDesc::getParameter(std::string param) const
+{
+ if (param == "specdesctype") {
+ return m_specdesctype;
+ } else {
+ return 0.0;
+ }
+}
+
+void
+SpecDesc::setParameter(std::string param, float value)
+{
+ if (param == "specdesctype") {
+ switch (lrintf(value)) {
+ case 0: m_specdesctype = SpecDescFlux; break;
+ case 1: m_specdesctype = SpecDescCentroid; break;
+ case 2: m_specdesctype = SpecDescSpread; break;
+ case 3: m_specdesctype = SpecDescSkeweness; break;
+ case 4: m_specdesctype = SpecDescKurtosis; break;
+ case 5: m_specdesctype = SpecDescSlope; break;
+ case 6: m_specdesctype = SpecDescDecrease; break;
+ case 7: m_specdesctype = SpecDescRolloff; break;
+ }
+ }
+}
+
+SpecDesc::OutputList
+SpecDesc::getOutputDescriptors() const
+{
+ OutputList list;
+
+ OutputDescriptor d;
+ d.identifier = "specdesc";
+ d.name = "Spectral descriptor output";
+ d.description = "Output of the spectral descpriptor";
+ d.binCount = 1;
+ d.isQuantized = true;
+ d.quantizeStep = 1.0;
+ d.sampleType = OutputDescriptor::OneSamplePerStep;
+ list.push_back(d);
+
+ return list;
+}
+
+SpecDesc::FeatureSet
+SpecDesc::process(const float *const *inputBuffers,
+ __attribute__((unused)) Vamp::RealTime timestamp)
+{
+ for (size_t i = 0; i < m_stepSize; ++i) {
+ fvec_set_sample(m_ibuf, inputBuffers[0][i], i);
+ }
+
+ aubio_pvoc_do(m_pvoc, m_ibuf, m_ispec);
+ aubio_specdesc_do(m_specdesc, m_ispec, m_out);
+
+ FeatureSet returnFeatures;
+
+ Feature specdesc;
+ specdesc.hasTimestamp = false;
+ specdesc.values.push_back(m_out->data[0]);
+ returnFeatures[0].push_back(specdesc);
+
+ return returnFeatures;
+}
+
+SpecDesc::FeatureSet
+SpecDesc::getRemainingFeatures()
+{
+ return FeatureSet();
+}
+
--- /dev/null
+/* -*- 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.
+
+ Copyright (C) 2006-2015 Paul Brossier <piem@aubio.org>
+
+ This file is part of vamp-aubio.
+
+ vamp-aubio 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 3 of the License, or
+ (at your option) any later version.
+
+ vamp-aubio is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with aubio. If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+#ifndef _SPECDESC_PLUGIN_H_
+#define _SPECDESC_PLUGIN_H_
+
+#include <vamp-sdk/Plugin.h>
+#include <aubio/aubio.h>
+
+#include "Types.h"
+
+class SpecDesc : public Vamp::Plugin
+{
+public:
+ SpecDesc(float inputSampleRate);
+ virtual ~SpecDesc();
+
+ bool initialise(size_t channels, size_t stepSize, size_t blockSize);
+ void reset();
+
+ InputDomain getInputDomain() const { return TimeDomain; }
+
+ 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);
+
+ size_t getPreferredStepSize() const;
+ size_t getPreferredBlockSize() const;
+
+ OutputList getOutputDescriptors() const;
+
+ FeatureSet process(const float *const *inputBuffers,
+ Vamp::RealTime timestamp);
+
+ FeatureSet getRemainingFeatures();
+
+protected:
+ fvec_t *m_ibuf;
+ aubio_pvoc_t *m_pvoc;
+ cvec_t *m_ispec;
+ aubio_specdesc_t *m_specdesc;
+ fvec_t *m_out;
+ SpecDescType m_specdesctype;
+ size_t m_stepSize;
+ size_t m_blockSize;
+};
+
+
+#endif /* _SPECDESC_PLUGIN_H_ */