/* * Copyright 2003-2020 The Music Player Daemon Project * http://www.musicpd.org * * 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, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include "ReplayGainGlobal.hxx" #include "ReplayGainConfig.hxx" #include "config/Data.hxx" #include #include #include #include static float ParsePreamp(const char *s) { assert(s != nullptr); char *endptr; float f = std::strtof(s, &endptr); if (endptr == s || *endptr != '\0') throw std::invalid_argument("Not a numeric value"); if (f < -15.0f || f > 15.0f) throw std::invalid_argument("Number must be between -15 and 15"); return std::pow(10.0f, f / 20.0f); } ReplayGainConfig LoadReplayGainConfig(const ConfigData &config) { ReplayGainConfig replay_gain_config; replay_gain_config.preamp = config.With(ConfigOption::REPLAYGAIN_PREAMP, [](const char *s){ return s != nullptr ? ParsePreamp(s) : 1.0f; }); replay_gain_config.missing_preamp = config.With(ConfigOption::REPLAYGAIN_MISSING_PREAMP, [](const char *s){ return s != nullptr ? ParsePreamp(s) : 1.0f; }); replay_gain_config.limit = config.GetBool(ConfigOption::REPLAYGAIN_LIMIT, ReplayGainConfig::DEFAULT_LIMIT); return replay_gain_config; }