/* * aptdec - A lightweight FOSS (NOAA) APT decoder * Copyright (C) 2019-2022 Xerbo (xerbo@protonmail.com) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #include #include #ifdef _MSC_VER typedef _Fcomplex complexf_t; #else typedef complex float complexf_t; #endif float convolve(const float *in, const float *taps, size_t len); complexf_t hilbert_transform(const float *in, const float *taps, size_t len); float interpolating_convolve(const float *in, const float *taps, size_t len, float offset, float delta);