1 /****************************************************************************** 2 * 3 * Copyright 2022 Google LLC 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at: 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 ******************************************************************************/ 18 19 #include "lc3.h" 20 21 #define PY_SSIZE_T_CLEAN 22 #include <Python.h> 23 #include <numpy/ndarrayobject.h> 24 25 #include <energy.c> 26 #include "ctypes.h" 27 28 static PyObject *energy_compute_py(PyObject *m, PyObject *args) 29 { 30 unsigned dt, sr; 31 PyObject *x_obj, *e_obj; 32 float *x, *e; 33 34 if (!PyArg_ParseTuple(args, "IIO", &dt, &sr, &x_obj)) 35 return NULL; 36 37 CTYPES_CHECK("dt", dt < LC3_NUM_DT); 38 CTYPES_CHECK("sr", sr < LC3_NUM_SRATE); 39 40 int ns = lc3_ns(dt, sr); 41 42 CTYPES_CHECK("x", to_1d_ptr(x_obj, NPY_FLOAT, ns, &x)); 43 e_obj = new_1d_ptr(NPY_FLOAT, lc3_num_bands[dt][sr], &e); 44 45 int nn_flag = lc3_energy_compute(dt, sr, x, e); 46 47 return Py_BuildValue("Ni", e_obj, nn_flag); 48 } 49 50 static PyMethodDef methods[] = { 51 { "energy_compute", energy_compute_py, METH_VARARGS }, 52 { NULL }, 53 }; 54 55 PyMODINIT_FUNC lc3_energy_py_init(PyObject *m) 56 { 57 import_array(); 58 59 PyModule_AddFunctions(m, methods); 60 61 return m; 62 } 63