ref: e99242a33df6cf2194cf4411475a194597f8a439
dir: /python/ext/aubioproxy.c/
#include "aubio-types.h" PyObject * new_py_fvec(uint_t length) { npy_intp dims[] = { length, 1 }; return PyArray_ZEROS(1, dims, AUBIO_NPY_SMPL, 0); } PyObject * new_py_fmat(uint_t height, uint_t length) { npy_intp dims[] = { height, length, 1 }; return PyArray_ZEROS(2, dims, AUBIO_NPY_SMPL, 0); } PyObject * PyAubio_CFvecToArray (fvec_t * self) { npy_intp dims[] = { self->length, 1 }; return PyArray_SimpleNewFromData (1, dims, AUBIO_NPY_SMPL, self->data); } int PyAubio_ArrayToCFvec (PyObject *input, fvec_t *out) { if (input == NULL) { PyErr_SetString (PyExc_ValueError, "input array is not a python object"); return 0; } // 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"); return 0; } else if (PyArray_NDIM ((PyArrayObject *)input) > 1) { PyErr_SetString (PyExc_ValueError, "input array has more than one dimensions"); return 0; } if (!PyArray_ISFLOAT ((PyArrayObject *)input)) { PyErr_SetString (PyExc_ValueError, "input array should be float"); return 0; } else if (PyArray_TYPE ((PyArrayObject *)input) != AUBIO_NPY_SMPL) { PyErr_SetString (PyExc_ValueError, "input array should be " AUBIO_NPY_SMPL_STR); return 0; } // vec = new_fvec (vec->length); // no need to really allocate fvec, just its struct member long length = PyArray_SIZE ((PyArrayObject *)input); if (length <= 0) { PyErr_SetString (PyExc_ValueError, "input array size should be greater than 0"); return 0; } } else if (PyObject_TypeCheck (input, &PyList_Type)) { PyErr_SetString (PyExc_ValueError, "does not convert from list yet"); return 0; } else { PyErr_SetString (PyExc_ValueError, "can only accept vector of float as input"); return 0; } out->length = (uint_t) PyArray_SIZE ((PyArrayObject *)input); out->data = (smpl_t *) PyArray_GETPTR1 ((PyArrayObject *)input, 0); return 1; } 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; } int PyAubio_ArrayToCFmat (PyObject *input, fmat_t *mat) { uint_t i; if (input == NULL) { PyErr_SetString (PyExc_ValueError, "input array is not a python object"); return 0; } // 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"); return 0; } else if (PyArray_NDIM ((PyArrayObject *)input) > 2) { PyErr_SetString (PyExc_ValueError, "input array has more than two dimensions"); return 0; } if (!PyArray_ISFLOAT ((PyArrayObject *)input)) { PyErr_SetString (PyExc_ValueError, "input array should be float"); return 0; } else if (PyArray_TYPE ((PyArrayObject *)input) != AUBIO_NPY_SMPL) { PyErr_SetString (PyExc_ValueError, "input array should be " AUBIO_NPY_SMPL_STR); return 0; } // no need to really allocate fvec, just its struct member long length = PyArray_DIM ((PyArrayObject *)input, 1); if (length <= 0) { PyErr_SetString (PyExc_ValueError, "input array dimension 1 should be greater than 0"); return 0; } long height = PyArray_DIM ((PyArrayObject *)input, 0); if (height <= 0) { PyErr_SetString (PyExc_ValueError, "input array dimension 0 should be greater than 0"); return 0; } } else if (PyObject_TypeCheck (input, &PyList_Type)) { PyErr_SetString (PyExc_ValueError, "can not convert list to fmat"); return 0; } else { PyErr_SetString (PyExc_ValueError, "can only accept matrix of float as input"); return 0; } uint_t new_height = (uint_t)PyArray_DIM ((PyArrayObject *)input, 0); if (mat->height != new_height) { if (mat->data) { free(mat->data); } mat->data = (smpl_t **)malloc(sizeof(smpl_t*) * new_height); } mat->height = new_height; mat->length = (uint_t)PyArray_DIM ((PyArrayObject *)input, 1); for (i=0; i< mat->height; i++) { mat->data[i] = (smpl_t*)PyArray_GETPTR1 ((PyArrayObject *)input, i); } return 1; }