1 | #include "aubio-types.h" |
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2 | |
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3 | /* cvec type definition |
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4 | |
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5 | class cvec(): |
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6 | def __new__(self, length = 1024): |
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7 | self.length = length / 2 + 1 |
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8 | self.norm = np.zeros(length / 2 + 1) |
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9 | self.phas = np.zeros(length / 2 + 1) |
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10 | |
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11 | */ |
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12 | |
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13 | // special python type for cvec |
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14 | typedef struct |
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15 | { |
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16 | PyObject_HEAD |
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17 | PyObject *norm; |
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18 | PyObject *phas; |
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19 | uint_t length; |
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20 | } Py_cvec; |
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21 | |
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22 | static char Py_cvec_doc[] = "cvec object"; |
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23 | |
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24 | PyObject * |
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25 | PyAubio_CCvecToPyCvec (cvec_t * input) { |
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26 | if (input == NULL) { |
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27 | PyErr_SetString (PyExc_ValueError, "PyAubio_CCvecToPyCvec got a null cvec!"); |
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28 | return NULL; |
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29 | } |
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30 | Py_cvec* vec = (Py_cvec*) PyObject_New (Py_cvec, &Py_cvecType); |
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31 | npy_intp dims[] = { input->length, 1 }; |
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32 | vec->norm = PyArray_SimpleNewFromData (1, dims, AUBIO_NPY_SMPL, input->norm); |
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33 | vec->phas = PyArray_SimpleNewFromData (1, dims, AUBIO_NPY_SMPL, input->phas); |
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34 | vec->length = input->length; |
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35 | return (PyObject *)vec; |
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36 | } |
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37 | |
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38 | int |
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39 | PyAubio_PyCvecToCCvec (PyObject *input, cvec_t *i) { |
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40 | if (PyObject_TypeCheck (input, &Py_cvecType)) { |
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41 | Py_cvec * in = (Py_cvec *)input; |
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42 | if (in->norm == NULL) { |
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43 | npy_intp dims[] = { in->length, 1 }; |
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44 | in->norm = PyArray_ZEROS(1, dims, AUBIO_NPY_SMPL, 0); |
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45 | } |
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46 | if (in->phas == NULL) { |
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47 | npy_intp dims[] = { in->length, 1 }; |
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48 | in->phas = PyArray_ZEROS(1, dims, AUBIO_NPY_SMPL, 0); |
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49 | } |
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50 | i->norm = (smpl_t *) PyArray_GETPTR1 ((PyArrayObject *)(in->norm), 0); |
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51 | i->phas = (smpl_t *) PyArray_GETPTR1 ((PyArrayObject *)(in->phas), 0); |
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52 | i->length = ((Py_cvec*)input)->length; |
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53 | return 1; |
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54 | } else { |
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55 | PyErr_SetString (PyExc_ValueError, "input array should be aubio.cvec"); |
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56 | return 0; |
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57 | } |
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58 | } |
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59 | |
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60 | static PyObject * |
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61 | Py_cvec_new (PyTypeObject * type, PyObject * args, PyObject * kwds) |
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62 | { |
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63 | int length= 0; |
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64 | Py_cvec *self; |
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65 | static char *kwlist[] = { "length", NULL }; |
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66 | |
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67 | if (!PyArg_ParseTupleAndKeywords (args, kwds, "|I", kwlist, |
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68 | &length)) { |
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69 | return NULL; |
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70 | } |
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71 | |
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72 | self = (Py_cvec *) type->tp_alloc (type, 0); |
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73 | |
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74 | self->length = Py_default_vector_length / 2 + 1; |
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75 | |
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76 | if (self == NULL) { |
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77 | return NULL; |
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78 | } |
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79 | |
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80 | if (length > 0) { |
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81 | self->length = length / 2 + 1; |
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82 | } else if (length < 0) { |
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83 | PyErr_SetString (PyExc_ValueError, |
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84 | "can not use negative number of elements"); |
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85 | return NULL; |
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86 | } |
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87 | |
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88 | return (PyObject *) self; |
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89 | } |
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90 | |
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91 | static int |
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92 | Py_cvec_init (Py_cvec * self, PyObject * args, PyObject * kwds) |
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93 | { |
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94 | self->norm = NULL; |
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95 | self->phas = NULL; |
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96 | return 0; |
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97 | } |
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98 | |
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99 | static void |
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100 | Py_cvec_del (Py_cvec * self) |
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101 | { |
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102 | Py_XDECREF(self->norm); |
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103 | Py_XDECREF(self->phas); |
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104 | Py_TYPE(self)->tp_free ((PyObject *) self); |
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105 | } |
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106 | |
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107 | static PyObject * |
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108 | Py_cvec_repr (Py_cvec * self, PyObject * unused) |
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109 | { |
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110 | PyObject *format = NULL; |
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111 | PyObject *args = NULL; |
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112 | PyObject *result = NULL; |
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113 | |
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114 | format = PyUnicode_FromString ("aubio cvec of %d elements"); |
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115 | if (format == NULL) { |
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116 | goto fail; |
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117 | } |
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118 | |
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119 | args = Py_BuildValue ("I", self->length); |
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120 | if (args == NULL) { |
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121 | goto fail; |
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122 | } |
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123 | // hide actual norm / phas content |
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124 | |
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125 | result = PyUnicode_Format (format, args); |
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126 | |
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127 | fail: |
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128 | Py_XDECREF (format); |
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129 | Py_XDECREF (args); |
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130 | |
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131 | return result; |
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132 | } |
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133 | |
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134 | PyObject * |
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135 | Py_cvec_get_norm (Py_cvec * self, void *closure) |
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136 | { |
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137 | // if it norm hasn't been created, create it now |
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138 | if (self->norm == NULL) { |
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139 | npy_intp dims[] = { self->length, 1 }; |
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140 | self->norm = PyArray_ZEROS(1, dims, AUBIO_NPY_SMPL, 0); |
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141 | } |
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142 | Py_INCREF(self->norm); |
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143 | return (PyObject*)(self->norm); |
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144 | } |
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145 | |
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146 | PyObject * |
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147 | Py_cvec_get_phas (Py_cvec * self, void *closure) |
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148 | { |
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149 | // if it phas hasn't been created, create it now |
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150 | if (self->phas == NULL) { |
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151 | npy_intp dims[] = { self->length, 1 }; |
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152 | self->phas = PyArray_ZEROS(1, dims, AUBIO_NPY_SMPL, 0); |
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153 | } |
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154 | Py_INCREF(self->phas); |
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155 | return (PyObject *)(self->phas); |
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156 | } |
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157 | |
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158 | static int |
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159 | Py_cvec_set_norm (Py_cvec * vec, PyObject *input, void * closure) |
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160 | { |
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161 | PyArrayObject * array; |
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162 | if (input == NULL) { |
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163 | PyErr_SetString (PyExc_ValueError, "input array is not a python object"); |
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164 | goto fail; |
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165 | } |
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166 | if (PyArray_Check(input)) { |
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167 | // we got an array, convert it to a cvec.norm |
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168 | if (PyArray_NDIM ((PyArrayObject *)input) == 0) { |
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169 | PyErr_SetString (PyExc_ValueError, "input array is a scalar"); |
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170 | goto fail; |
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171 | } else if (PyArray_NDIM ((PyArrayObject *)input) > 2) { |
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172 | PyErr_SetString (PyExc_ValueError, |
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173 | "input array has more than two dimensions"); |
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174 | goto fail; |
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175 | } |
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176 | |
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177 | if (!PyArray_ISFLOAT ((PyArrayObject *)input)) { |
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178 | PyErr_SetString (PyExc_ValueError, "input array should be float"); |
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179 | goto fail; |
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180 | } else if (PyArray_TYPE ((PyArrayObject *)input) != AUBIO_NPY_SMPL) { |
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181 | PyErr_SetString (PyExc_ValueError, "input array should be float32"); |
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182 | goto fail; |
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183 | } |
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184 | array = (PyArrayObject *)input; |
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185 | |
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186 | // check input array dimensions |
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187 | if (PyArray_NDIM (array) != 1) { |
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188 | PyErr_Format (PyExc_ValueError, |
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189 | "input array has %d dimensions, not 1", |
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190 | PyArray_NDIM (array)); |
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191 | goto fail; |
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192 | } else { |
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193 | if (vec->length != PyArray_SIZE (array)) { |
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194 | PyErr_Format (PyExc_ValueError, |
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195 | "input array has length %d, but cvec has length %d", |
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196 | (int)PyArray_SIZE (array), vec->length); |
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197 | goto fail; |
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198 | } |
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199 | } |
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200 | |
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201 | Py_XDECREF(vec->norm); |
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202 | vec->norm = input; |
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203 | Py_INCREF(vec->norm); |
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204 | |
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205 | } else { |
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206 | PyErr_SetString (PyExc_ValueError, "can only accept array as input"); |
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207 | return 1; |
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208 | } |
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209 | |
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210 | return 0; |
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211 | |
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212 | fail: |
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213 | return 1; |
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214 | } |
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215 | |
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216 | static int |
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217 | Py_cvec_set_phas (Py_cvec * vec, PyObject *input, void * closure) |
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218 | { |
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219 | PyArrayObject * array; |
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220 | if (input == NULL) { |
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221 | PyErr_SetString (PyExc_ValueError, "input array is not a python object"); |
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222 | goto fail; |
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223 | } |
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224 | if (PyArray_Check(input)) { |
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225 | |
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226 | // we got an array, convert it to a cvec.phas |
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227 | if (PyArray_NDIM ((PyArrayObject *)input) == 0) { |
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228 | PyErr_SetString (PyExc_ValueError, "input array is a scalar"); |
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229 | goto fail; |
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230 | } else if (PyArray_NDIM ((PyArrayObject *)input) > 2) { |
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231 | PyErr_SetString (PyExc_ValueError, |
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232 | "input array has more than two dimensions"); |
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233 | goto fail; |
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234 | } |
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235 | |
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236 | if (!PyArray_ISFLOAT ((PyArrayObject *)input)) { |
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237 | PyErr_SetString (PyExc_ValueError, "input array should be float"); |
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238 | goto fail; |
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239 | } else if (PyArray_TYPE ((PyArrayObject *)input) != AUBIO_NPY_SMPL) { |
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240 | PyErr_SetString (PyExc_ValueError, "input array should be float32"); |
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241 | goto fail; |
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242 | } |
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243 | array = (PyArrayObject *)input; |
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244 | |
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245 | // check input array dimensions |
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246 | if (PyArray_NDIM (array) != 1) { |
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247 | PyErr_Format (PyExc_ValueError, |
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248 | "input array has %d dimensions, not 1", |
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249 | PyArray_NDIM (array)); |
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250 | goto fail; |
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251 | } else { |
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252 | if (vec->length != PyArray_SIZE (array)) { |
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253 | PyErr_Format (PyExc_ValueError, |
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254 | "input array has length %d, but cvec has length %d", |
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255 | (int)PyArray_SIZE (array), vec->length); |
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256 | goto fail; |
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257 | } |
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258 | } |
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259 | |
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260 | Py_XDECREF(vec->phas); |
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261 | vec->phas = input; |
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262 | Py_INCREF(vec->phas); |
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263 | |
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264 | } else { |
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265 | PyErr_SetString (PyExc_ValueError, "can only accept array as input"); |
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266 | return 1; |
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267 | } |
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268 | |
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269 | return 0; |
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270 | |
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271 | fail: |
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272 | return 1; |
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273 | } |
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274 | |
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275 | static PyMemberDef Py_cvec_members[] = { |
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276 | // TODO remove READONLY flag and define getter/setter |
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277 | {"length", T_INT, offsetof (Py_cvec, length), READONLY, |
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278 | "length attribute"}, |
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279 | {NULL} /* Sentinel */ |
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280 | }; |
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281 | |
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282 | static PyMethodDef Py_cvec_methods[] = { |
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283 | {NULL} |
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284 | }; |
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285 | |
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286 | static PyGetSetDef Py_cvec_getseters[] = { |
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287 | {"norm", (getter)Py_cvec_get_norm, (setter)Py_cvec_set_norm, |
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288 | "Numpy vector of shape (length,) containing the magnitude", |
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289 | NULL}, |
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290 | {"phas", (getter)Py_cvec_get_phas, (setter)Py_cvec_set_phas, |
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291 | "Numpy vector of shape (length,) containing the phase", |
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292 | NULL}, |
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293 | {NULL} /* sentinel */ |
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294 | }; |
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295 | |
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296 | PyTypeObject Py_cvecType = { |
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297 | PyVarObject_HEAD_INIT(NULL, 0) |
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298 | "aubio.cvec", /* tp_name */ |
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299 | sizeof (Py_cvec), /* tp_basicsize */ |
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300 | 0, /* tp_itemsize */ |
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301 | (destructor) Py_cvec_del, /* tp_dealloc */ |
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302 | 0, /* tp_print */ |
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303 | 0, /* tp_getattr */ |
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304 | 0, /* tp_setattr */ |
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305 | 0, /* tp_compare */ |
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306 | (reprfunc) Py_cvec_repr, /* tp_repr */ |
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307 | 0, /* tp_as_number */ |
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308 | 0, //&Py_cvec_tp_as_sequence, /* tp_as_sequence */ |
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309 | 0, /* tp_as_mapping */ |
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310 | 0, /* tp_hash */ |
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311 | 0, /* tp_call */ |
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312 | 0, /* tp_str */ |
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313 | 0, /* tp_getattro */ |
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314 | 0, /* tp_setattro */ |
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315 | 0, /* tp_as_buffer */ |
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316 | Py_TPFLAGS_DEFAULT, /* tp_flags */ |
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317 | Py_cvec_doc, /* tp_doc */ |
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318 | 0, /* tp_traverse */ |
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319 | 0, /* tp_clear */ |
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320 | 0, /* tp_richcompare */ |
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321 | 0, /* tp_weaklistoffset */ |
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322 | 0, /* tp_iter */ |
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323 | 0, /* tp_iternext */ |
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324 | Py_cvec_methods, /* tp_methods */ |
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325 | Py_cvec_members, /* tp_members */ |
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326 | Py_cvec_getseters, /* tp_getset */ |
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327 | 0, /* tp_base */ |
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328 | 0, /* tp_dict */ |
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329 | 0, /* tp_descr_get */ |
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330 | 0, /* tp_descr_set */ |
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331 | 0, /* tp_dictoffset */ |
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332 | (initproc) Py_cvec_init, /* tp_init */ |
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333 | 0, /* tp_alloc */ |
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334 | Py_cvec_new, /* tp_new */ |
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335 | }; |
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