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1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
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2
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3 /*
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4 QM Vamp Plugin Set
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5
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6 Centre for Digital Music, Queen Mary, University of London.
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7 All rights reserved.
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8 */
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9
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10 #ifndef _MFCC_PLUGIN_H_
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11 #define _MFCC_PLUGIN_H_
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12
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13 #include <vamp-sdk/Plugin.h>
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14 #include <dsp/mfcc/MFCC.h>
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15
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16 #include <vector>
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17
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18 class MFCCPlugin : public Vamp::Plugin
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19 {
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20 public:
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21 MFCCPlugin(float inputSampleRate);
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22 virtual ~MFCCPlugin();
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23
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24 bool initialise(size_t channels, size_t stepSize, size_t blockSize);
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25 void reset();
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26
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27 InputDomain getInputDomain() const { return FrequencyDomain; }
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28
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29 std::string getIdentifier() const;
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30 std::string getName() const;
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31 std::string getDescription() const;
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32 std::string getMaker() const;
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33 int getPluginVersion() const;
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34 std::string getCopyright() const;
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35
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36 ParameterList getParameterDescriptors() const;
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37 float getParameter(std::string) const;
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38 void setParameter(std::string, float);
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39
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40 size_t getPreferredStepSize() const;
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41 size_t getPreferredBlockSize() const;
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42
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43 OutputList getOutputDescriptors() const;
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44
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45 FeatureSet process(const float *const *inputBuffers,
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46 Vamp::RealTime timestamp);
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47
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48 FeatureSet getRemainingFeatures();
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49
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50 protected:
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51 int m_bins; // == nceps is m_wantC0 false or nceps+1 if m_wantC0 true
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52 bool m_wantC0;
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53 float m_logpower;
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54
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55 void setupConfig();
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56
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57 MFCCConfig m_config;
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58 MFCC *m_mfcc;
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59 mutable size_t m_step;
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60 mutable size_t m_block;
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61
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62 std::vector<double> m_binsums;
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63 size_t m_count;
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64
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65 Feature normalize(const Feature &);
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66 };
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67
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68
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69 #endif
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