1 | #include <Python.h> |
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2 | #define PY_ARRAY_UNIQUE_SYMBOL PyArray_API |
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3 | //#define NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION |
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4 | #include <numpy/arrayobject.h> |
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5 | |
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6 | #include "aubio-types.h" |
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7 | #include "generated/aubio-generated.h" |
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8 | |
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9 | static char Py_alpha_norm_doc[] = "compute alpha normalisation factor"; |
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10 | |
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11 | static PyObject * |
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12 | Py_alpha_norm (PyObject * self, PyObject * args) |
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13 | { |
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14 | PyObject *input; |
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15 | fvec_t *vec; |
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16 | smpl_t alpha; |
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17 | PyObject *result; |
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18 | |
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19 | if (!PyArg_ParseTuple (args, "Of:alpha_norm", &input, &alpha)) { |
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20 | return NULL; |
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21 | } |
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22 | |
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23 | if (input == NULL) { |
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24 | return NULL; |
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25 | } |
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26 | |
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27 | vec = PyAubio_ArrayToCFvec (input); |
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28 | |
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29 | if (vec == NULL) { |
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30 | return NULL; |
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31 | } |
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32 | |
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33 | // compute the function |
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34 | result = Py_BuildValue ("f", fvec_alpha_norm (vec, alpha)); |
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35 | if (result == NULL) { |
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36 | return NULL; |
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37 | } |
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38 | |
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39 | return result; |
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40 | } |
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41 | |
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42 | static char Py_zero_crossing_rate_doc[] = "compute zero crossing rate"; |
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43 | |
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44 | static PyObject * |
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45 | Py_zero_crossing_rate (PyObject * self, PyObject * args) |
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46 | { |
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47 | PyObject *input; |
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48 | fvec_t *vec; |
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49 | PyObject *result; |
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50 | |
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51 | if (!PyArg_ParseTuple (args, "O:zero_crossing_rate", &input)) { |
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52 | return NULL; |
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53 | } |
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54 | |
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55 | if (input == NULL) { |
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56 | return NULL; |
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57 | } |
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58 | |
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59 | vec = PyAubio_ArrayToCFvec (input); |
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60 | |
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61 | if (vec == NULL) { |
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62 | return NULL; |
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63 | } |
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64 | |
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65 | // compute the function |
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66 | result = Py_BuildValue ("f", aubio_zero_crossing_rate (vec)); |
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67 | if (result == NULL) { |
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68 | return NULL; |
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69 | } |
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70 | |
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71 | return result; |
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72 | } |
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73 | |
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74 | static char Py_min_removal_doc[] = "compute zero crossing rate"; |
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75 | |
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76 | static PyObject * |
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77 | Py_min_removal(PyObject * self, PyObject * args) |
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78 | { |
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79 | PyObject *input; |
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80 | fvec_t *vec; |
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81 | |
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82 | if (!PyArg_ParseTuple (args, "O:min_removal", &input)) { |
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83 | return NULL; |
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84 | } |
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85 | |
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86 | if (input == NULL) { |
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87 | return NULL; |
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88 | } |
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89 | |
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90 | vec = PyAubio_ArrayToCFvec (input); |
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91 | |
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92 | if (vec == NULL) { |
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93 | return NULL; |
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94 | } |
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95 | |
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96 | // compute the function |
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97 | fvec_min_removal (vec); |
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98 | |
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99 | // since this function does not return, we could return None |
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100 | //return Py_None; |
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101 | // however it is convenient to return the modified vector |
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102 | return (PyObject *) PyAubio_CFvecToArray(vec); |
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103 | // or even without converting it back to an array |
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104 | //Py_INCREF(vec); |
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105 | //return (PyObject *)vec; |
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106 | } |
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107 | |
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108 | static PyMethodDef aubio_methods[] = { |
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109 | {"alpha_norm", Py_alpha_norm, METH_VARARGS, Py_alpha_norm_doc}, |
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110 | {"zero_crossing_rate", Py_zero_crossing_rate, METH_VARARGS, |
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111 | Py_zero_crossing_rate_doc}, |
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112 | {"min_removal", Py_min_removal, METH_VARARGS, Py_min_removal_doc}, |
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113 | {NULL, NULL} /* Sentinel */ |
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114 | }; |
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115 | |
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116 | static char aubio_module_doc[] = "Python module for the aubio library"; |
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117 | |
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118 | PyMODINIT_FUNC |
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119 | init_aubio (void) |
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120 | { |
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121 | PyObject *m; |
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122 | int err; |
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123 | |
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124 | if ( (PyType_Ready (&Py_cvecType) < 0) |
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125 | || (PyType_Ready (&Py_filterType) < 0) |
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126 | || (PyType_Ready (&Py_filterbankType) < 0) |
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127 | || (PyType_Ready (&Py_fftType) < 0) |
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128 | || (PyType_Ready (&Py_pvocType) < 0) |
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129 | // generated objects |
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130 | || (generated_types_ready() < 0 ) |
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131 | ) { |
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132 | return; |
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133 | } |
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134 | |
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135 | m = Py_InitModule3 ("_aubio", aubio_methods, aubio_module_doc); |
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136 | |
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137 | if (m == NULL) { |
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138 | return; |
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139 | } |
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140 | |
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141 | err = _import_array (); |
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142 | |
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143 | if (err != 0) { |
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144 | fprintf (stderr, |
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145 | "Unable to import Numpy C API from aubio module (error %d)\n", err); |
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146 | } |
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147 | |
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148 | Py_INCREF (&Py_cvecType); |
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149 | PyModule_AddObject (m, "cvec", (PyObject *) & Py_cvecType); |
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150 | Py_INCREF (&Py_filterType); |
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151 | PyModule_AddObject (m, "digital_filter", (PyObject *) & Py_filterType); |
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152 | Py_INCREF (&Py_filterbankType); |
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153 | PyModule_AddObject (m, "filterbank", (PyObject *) & Py_filterbankType); |
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154 | Py_INCREF (&Py_fftType); |
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155 | PyModule_AddObject (m, "fft", (PyObject *) & Py_fftType); |
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156 | Py_INCREF (&Py_pvocType); |
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157 | PyModule_AddObject (m, "pvoc", (PyObject *) & Py_pvocType); |
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158 | |
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159 | // generated objects |
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160 | add_generated_objects(m); |
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161 | } |
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