comparison plugins/Mfcc.h @ 69:ecaaac755073

plugins/Mfcc.{cpp,h}: added first Mfcc drafts

+/* -*- 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 <[e-mail]>
+
+    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 _MFCC_PLUGIN_H_
+#define _MFCC_PLUGIN_H_
+
+#include <vamp-sdk/Plugin.h>
+#include <aubio/aubio.h>
+
+#include "Types.h"
+
+class Mfcc : public Vamp::Plugin
+{
+public:
+    Mfcc(float inputSampleRate);
+    virtual ~Mfcc();
+
+    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_mfcc_t *m_mfcc;
+    fvec_t *m_ovec;
+
+    size_t m_nfilters;
+    size_t m_ncoeffs;
+
+    size_t m_stepSize;
+    size_t m_blockSize;
+};
+
+
+#endif