ref: e3e8e9d285fcd014bff0648c5ff3b4a2d76d7961
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 */
};