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1 /*
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2 Vamp
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3
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4 An API for audio analysis and feature extraction plugins.
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5
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6 Centre for Digital Music, Queen Mary, University of London.
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7 Copyright 2006 Chris Cannam.
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8
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9 Permission is hereby granted, free of charge, to any person
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10 obtaining a copy of this software and associated documentation
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11 files (the "Software"), to deal in the Software without
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12 restriction, including without limitation the rights to use, copy,
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13 modify, merge, publish, distribute, sublicense, and/or sell copies
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14 of the Software, and to permit persons to whom the Software is
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15 furnished to do so, subject to the following conditions:
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16
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17 The above copyright notice and this permission notice shall be
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18 included in all copies or substantial portions of the Software.
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19
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20 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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21 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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22 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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23 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
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24 ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
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25 CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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26 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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27
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28 Except as contained in this notice, the names of the Centre for
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29 Digital Music; Queen Mary, University of London; and Chris Cannam
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30 shall not be used in advertising or otherwise to promote the sale,
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31 use or other dealings in this Software without prior written
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32 authorization.
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33 */
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34
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35 /**
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36 * This plugin abstracts appropriate Python Scripts as a VAMP plugin.
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37 */
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38
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39 #ifndef _PYTHON_WRAPPER_PLUGIN_H_
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40 #define _PYTHON_WRAPPER_PLUGIN_H_
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41
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42 #include "vamp-sdk/Plugin.h"
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43 #include "/usr/include/python/Python.h"
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44
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45 //fields in OutputDescriptor
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46 enum eOutDescriptors {
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47 not_found,
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48 identifier,
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49 name,
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50 description,
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51 unit,
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52 hasFixedBinCount,
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53 binCount,
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54 binNames,
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55 hasKnownExtents,
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56 minValue,
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57 maxValue,
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58 isQuantized,
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59 quantizeStep,
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60 sampleType,
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61 sampleRate,
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62 endNode
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63 };
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64
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65 namespace p {
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66 enum eParmDescriptors {
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67 not_found,
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68 identifier,
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69 name,
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70 description,
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71 unit,
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72 minValue,
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73 maxValue,
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74 defaultValue,
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75 isQuantized
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76 };
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77 }
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78
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79 enum eSampleTypes {
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80 OneSamplePerStep,
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81 FixedSampleRate,
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82 VariableSampleRate
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83 };
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84
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85 enum eFeatureFields {
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86 unknown,
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87 hasTimestamp,
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88 timeStamp,
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89 values,
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90 label
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91 };
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92
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93
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94 class PyPlugin : public Vamp::Plugin
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95 {
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96 public:
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97 PyPlugin(std::string plugin,float inputSampleRate, PyObject *pyInstance);
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98 virtual ~PyPlugin();
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99
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100 bool initialise(size_t channels, size_t stepSize, size_t blockSize);
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101 void reset();
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102 //virtuals:
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103 InputDomain getInputDomain() const;
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104 size_t getPreferredBlockSize() const;
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105 size_t getPreferredStepSize() const;
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106 size_t getMinChannelCount() const;
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107 size_t getMaxChannelCount() const;
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108
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109 std::string getIdentifier() const;
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110 std::string getName() const;
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111 std::string getDescription() const;
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112 std::string getMaker() const;
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113 int getPluginVersion() const;
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114 std::string getCopyright() const;
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115
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116 OutputList getOutputDescriptors() const;
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117 ParameterList getParameterDescriptors() const;
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118 float getParameter(std::string paramid) const;
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119 void setParameter(std::string paramid, float newval);
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120
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121 FeatureSet process(const float *const *inputBuffers,
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122 Vamp::RealTime timestamp);
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123
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124 FeatureSet getRemainingFeatures();
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125
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126 protected:
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127 PyObject *m_pyInstance;
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128 size_t m_stepSize;
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129 float m_previousSample;
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130 std::string m_plugin;
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131 std::string m_class;
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132 std::string m_path;
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133 };
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134
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135
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136 #endif
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