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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 Vamp
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5
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6 An API for audio analysis and feature extraction plugins.
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7
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8 Centre for Digital Music, Queen Mary, University of London.
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9 Copyright 2006 Chris Cannam.
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10
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11 Permission is hereby granted, free of charge, to any person
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12 obtaining a copy of this software and associated documentation
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13 files (the "Software"), to deal in the Software without
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14 restriction, including without limitation the rights to use, copy,
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15 modify, merge, publish, distribute, sublicense, and/or sell copies
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16 of the Software, and to permit persons to whom the Software is
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17 furnished to do so, subject to the following conditions:
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18
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19 The above copyright notice and this permission notice shall be
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20 included in all copies or substantial portions of the Software.
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21
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22 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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23 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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24 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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25 NONINFRINGEMENT. IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR
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26 ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
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27 CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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28 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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29
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30 Except as contained in this notice, the names of the Centre for
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31 Digital Music; Queen Mary, University of London; and Chris Cannam
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32 shall not be used in advertising or otherwise to promote the sale,
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33 use or other dealings in this Software without prior written
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34 authorization.
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35 */
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36
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37 #ifndef _SPECTRAL_CENTROID_PLUGIN_H_
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38 #define _SPECTRAL_CENTROID_PLUGIN_H_
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39
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40 #include "Plugin.h"
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41
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42 class SpectralCentroidData;
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43
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44 class SpectralCentroid : public Vamp::Plugin
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45 {
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46 public:
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47 SpectralCentroid(float inputSampleRate);
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48 virtual ~SpectralCentroid();
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49
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50 bool initialise(size_t channels, size_t stepSize, size_t blockSize);
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51 void reset();
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52
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53 InputDomain getInputDomain() const { return FrequencyDomain; }
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54
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55 std::string getName() const;
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56 std::string getDescription() const;
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57 std::string getMaker() const;
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58 int getPluginVersion() const;
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59 std::string getCopyright() const;
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60
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61 size_t getPreferredStepSize() const;
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62 size_t getPreferredBlockSize() const;
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63
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64 OutputList getOutputDescriptors() const;
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65
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66 FeatureSet process(float **inputBuffers, Vamp::RealTime timestamp);
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67
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68 FeatureSet getRemainingFeatures();
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69
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70 protected:
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71 size_t m_stepSize;
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72 size_t m_blockSize;
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73 double *m_workBuffer;
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74 };
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75
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76
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77 #endif
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