ref: 6bb268b1f41c1a8275b6da56f88630f4aa4cb5b6
dir: /python/ext/py-cvec.c/
#include "aubio-types.h" /* cvec type definition class cvec(): def __init__(self, length = 1024): self.length = length self.norm = array(length) self.phas = array(length) */ static char Py_cvec_doc[] = "cvec object"; static PyObject * Py_cvec_new (PyTypeObject * type, PyObject * args, PyObject * kwds) { int length= 0; Py_cvec *self; static char *kwlist[] = { "length", NULL }; if (!PyArg_ParseTupleAndKeywords (args, kwds, "|I", kwlist, &length)) { return NULL; } self = (Py_cvec *) type->tp_alloc (type, 0); self->length = Py_default_vector_length / 2 + 1; if (self == NULL) { return NULL; } if (length > 0) { self->length = length / 2 + 1; } else if (length < 0) { PyErr_SetString (PyExc_ValueError, "can not use negative number of elements"); return NULL; } return (PyObject *) self; } static int Py_cvec_init (Py_cvec * self, PyObject * args, PyObject * kwds) { self->o = new_cvec ((self->length - 1) * 2); if (self->o == NULL) { return -1; } return 0; } static void Py_cvec_del (Py_cvec * self) { del_cvec (self->o); self->ob_type->tp_free ((PyObject *) self); } static PyObject * Py_cvec_repr (Py_cvec * self, PyObject * unused) { PyObject *format = NULL; PyObject *args = NULL; PyObject *result = NULL; format = PyString_FromString ("aubio cvec of %d elements"); if (format == NULL) { goto fail; } args = Py_BuildValue ("I", self->length); if (args == NULL) { goto fail; } cvec_print ( self->o ); result = PyString_Format (format, args); fail: Py_XDECREF (format); Py_XDECREF (args); return result; } PyObject * PyAubio_CvecNormToArray (Py_cvec * self) { npy_intp dims[] = { self->o->length, 1 }; return PyArray_SimpleNewFromData (1, dims, NPY_FLOAT, self->o->norm); } PyObject * PyAubio_CvecPhasToArray (Py_cvec * self) { npy_intp dims[] = { self->o->length, 1 }; return PyArray_SimpleNewFromData (1, dims, NPY_FLOAT, self->o->phas); } PyObject * PyAubio_ArrayToCvecPhas (PyObject * self) { return NULL; } PyObject * Py_cvec_get_norm (Py_cvec * self, void *closure) { return PyAubio_CvecNormToArray(self); } PyObject * Py_cvec_get_phas (Py_cvec * self, void *closure) { return PyAubio_CvecPhasToArray(self); } static int Py_cvec_set_norm (Py_cvec * vec, PyObject *input, void * closure) { PyArrayObject * array; if (input == NULL) { PyErr_SetString (PyExc_ValueError, "input array is not a python object"); goto fail; } if (PyArray_Check(input)) { // we got an array, convert it to a cvec.norm if (PyArray_NDIM ((PyArrayObject *)input) == 0) { PyErr_SetString (PyExc_ValueError, "input array is a scalar"); goto fail; } else if (PyArray_NDIM ((PyArrayObject *)input) > 2) { PyErr_SetString (PyExc_ValueError, "input array has more than two dimensions"); goto fail; } if (!PyArray_ISFLOAT ((PyArrayObject *)input)) { PyErr_SetString (PyExc_ValueError, "input array should be float"); goto fail; } else if (PyArray_TYPE ((PyArrayObject *)input) != AUBIO_NPY_SMPL) { PyErr_SetString (PyExc_ValueError, "input array should be float32"); goto fail; } array = (PyArrayObject *)input; // check input array dimensions if (PyArray_NDIM (array) != 1) { PyErr_Format (PyExc_ValueError, "input array has %d dimensions, not 1", PyArray_NDIM (array)); goto fail; } else { if (vec->o->length != PyArray_SIZE (array)) { PyErr_Format (PyExc_ValueError, "input array has length %d, but cvec has length %d", (int)PyArray_SIZE (array), vec->o->length); goto fail; } } vec->o->norm = (smpl_t *) PyArray_GETPTR1 (array, 0); } else { PyErr_SetString (PyExc_ValueError, "can only accept array as input"); return 1; } Py_INCREF(array); return 0; fail: return 1; } static int Py_cvec_set_phas (Py_cvec * vec, PyObject *input, void * closure) { PyArrayObject * array; if (input == NULL) { PyErr_SetString (PyExc_ValueError, "input array is not a python object"); goto fail; } if (PyArray_Check(input)) { // we got an array, convert it to a cvec.phas if (PyArray_NDIM ((PyArrayObject *)input) == 0) { PyErr_SetString (PyExc_ValueError, "input array is a scalar"); goto fail; } else if (PyArray_NDIM ((PyArrayObject *)input) > 2) { PyErr_SetString (PyExc_ValueError, "input array has more than two dimensions"); goto fail; } if (!PyArray_ISFLOAT ((PyArrayObject *)input)) { PyErr_SetString (PyExc_ValueError, "input array should be float"); goto fail; } else if (PyArray_TYPE ((PyArrayObject *)input) != AUBIO_NPY_SMPL) { PyErr_SetString (PyExc_ValueError, "input array should be float32"); goto fail; } array = (PyArrayObject *)input; // check input array dimensions if (PyArray_NDIM (array) != 1) { PyErr_Format (PyExc_ValueError, "input array has %d dimensions, not 1", PyArray_NDIM (array)); goto fail; } else { if (vec->o->length != PyArray_SIZE (array)) { PyErr_Format (PyExc_ValueError, "input array has length %d, but cvec has length %d", (int)PyArray_SIZE (array), vec->o->length); goto fail; } } vec->o->phas = (smpl_t *) PyArray_GETPTR1 (array, 0); } else { PyErr_SetString (PyExc_ValueError, "can only accept array as input"); return 1; } Py_INCREF(array); return 0; fail: return 1; } static PyMemberDef Py_cvec_members[] = { // TODO remove READONLY flag and define getter/setter {"length", T_INT, offsetof (Py_cvec, length), READONLY, "length attribute"}, {NULL} /* Sentinel */ }; static PyMethodDef Py_cvec_methods[] = { {NULL} }; static PyGetSetDef Py_cvec_getseters[] = { {"norm", (getter)Py_cvec_get_norm, (setter)Py_cvec_set_norm, "Numpy vector of shape (length,) containing the magnitude", NULL}, {"phas", (getter)Py_cvec_get_phas, (setter)Py_cvec_set_phas, "Numpy vector of shape (length,) containing the phase", NULL}, {NULL} /* sentinel */ }; PyTypeObject Py_cvecType = { PyObject_HEAD_INIT (NULL) 0, /* ob_size */ "aubio.cvec", /* tp_name */ sizeof (Py_cvec), /* tp_basicsize */ 0, /* tp_itemsize */ (destructor) Py_cvec_del, /* tp_dealloc */ 0, /* tp_print */ 0, /* tp_getattr */ 0, /* tp_setattr */ 0, /* tp_compare */ (reprfunc) Py_cvec_repr, /* tp_repr */ 0, /* tp_as_number */ 0, //&Py_cvec_tp_as_sequence, /* tp_as_sequence */ 0, /* tp_as_mapping */ 0, /* tp_hash */ 0, /* tp_call */ 0, /* tp_str */ 0, /* tp_getattro */ 0, /* tp_setattro */ 0, /* tp_as_buffer */ Py_TPFLAGS_DEFAULT, /* tp_flags */ Py_cvec_doc, /* tp_doc */ 0, /* tp_traverse */ 0, /* tp_clear */ 0, /* tp_richcompare */ 0, /* tp_weaklistoffset */ 0, /* tp_iter */ 0, /* tp_iternext */ Py_cvec_methods, /* tp_methods */ Py_cvec_members, /* tp_members */ Py_cvec_getseters, /* tp_getset */ 0, /* tp_base */ 0, /* tp_dict */ 0, /* tp_descr_get */ 0, /* tp_descr_set */ 0, /* tp_dictoffset */ (initproc) Py_cvec_init, /* tp_init */ 0, /* tp_alloc */ Py_cvec_new, /* tp_new */ };