ref: 7e9e31189b9896cc300b949e0ca575d9e5232909
dir: /python/ext/aubioproxy.c/
#include "aubio-types.h" fvec_t * PyAubio_ArrayToCFvec (PyObject *input) { PyObject *array; fvec_t *vec; if (input == NULL) { PyErr_SetString (PyExc_ValueError, "input array is not a python object"); goto fail; } // parsing input object into a Py_fvec if (PyArray_Check(input)) { // we got an array, convert it to an fvec if (PyArray_NDIM ((PyArrayObject *)input) == 0) { PyErr_SetString (PyExc_ValueError, "input array is a scalar"); goto fail; } else if (PyArray_NDIM ((PyArrayObject *)input) > 1) { PyErr_SetString (PyExc_ValueError, "input array has more than one 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; } else { // input data type is float32, nothing else to do array = input; } // vec = new_fvec (vec->length); // no need to really allocate fvec, just its struct member vec = (fvec_t *)malloc(sizeof(fvec_t)); vec->length = PyArray_SIZE ((PyArrayObject *)array); vec->data = (smpl_t *) PyArray_GETPTR1 ((PyArrayObject *)array, 0); } else if (PyObject_TypeCheck (input, &PyList_Type)) { PyErr_SetString (PyExc_ValueError, "does not convert from list yet"); return NULL; } else { PyErr_SetString (PyExc_ValueError, "can only accept vector of float as input"); return NULL; } return vec; fail: return NULL; } PyObject * PyAubio_CFvecToArray (fvec_t * self) { npy_intp dims[] = { self->length, 1 }; return PyArray_SimpleNewFromData (1, dims, AUBIO_NPY_SMPL, self->data); } Py_cvec * PyAubio_CCvecToPyCvec (cvec_t * input) { Py_cvec *vec = (Py_cvec*) PyObject_New (Py_cvec, &Py_cvecType); vec->length = input->length; vec->o = input; Py_INCREF(vec); return vec; } cvec_t * PyAubio_ArrayToCCvec (PyObject *input) { if (PyObject_TypeCheck (input, &Py_cvecType)) { return ((Py_cvec*)input)->o; } else { PyErr_SetString (PyExc_ValueError, "input array should be float32"); return NULL; } } PyObject * PyAubio_CFmatToArray (fmat_t * input) { PyObject *array = NULL; uint_t i; npy_intp dims[] = { input->length, 1 }; PyObject *concat = PyList_New (0), *tmp = NULL; for (i = 0; i < input->height; i++) { tmp = PyArray_SimpleNewFromData (1, dims, AUBIO_NPY_SMPL, input->data[i]); PyList_Append (concat, tmp); Py_DECREF (tmp); } array = PyArray_FromObject (concat, AUBIO_NPY_SMPL, 2, 2); Py_DECREF (concat); return array; } fmat_t * PyAubio_ArrayToCFmat (PyObject *input) { PyObject *array; fmat_t *mat; uint_t i; if (input == NULL) { PyErr_SetString (PyExc_ValueError, "input array is not a python object"); goto fail; } // parsing input object into a Py_fvec if (PyArray_Check(input)) { // we got an array, convert it to an fvec 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; } else { // input data type is float32, nothing else to do array = input; } // no need to really allocate fvec, just its struct member mat = (fmat_t *)malloc(sizeof(fmat_t)); mat->length = PyArray_DIM ((PyArrayObject *)array, 1); mat->height = PyArray_DIM ((PyArrayObject *)array, 0); mat->data = (smpl_t **)malloc(sizeof(smpl_t*) * mat->height); for (i=0; i< mat->height; i++) { mat->data[i] = (smpl_t*)PyArray_GETPTR1 ((PyArrayObject *)array, i); } } else if (PyObject_TypeCheck (input, &PyList_Type)) { PyErr_SetString (PyExc_ValueError, "can not convert list to fmat"); return NULL; } else { PyErr_SetString (PyExc_ValueError, "can only accept matrix of float as input"); return NULL; } return mat; fail: return NULL; }