/* * Copyright (C) 2016 Jared Boone, ShareBrained Technology, Inc. * * This file is part of PortaPack. * * 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, 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; see the file COPYING. If not, write to * the Free Software Foundation, Inc., 51 Franklin Street, * Boston, MA 02110-1301, USA. */ #include "io_wave.hpp" Optional<File::Error> WAVFileWriter::create( const std::filesystem::path& filename, size_t sampling_rate ) { sampling_rate = sampling_rate; const auto create_error = FileWriter::create(filename); if( create_error.is_valid() ) { return create_error; } else { return update_header(); } } Optional<File::Error> WAVFileWriter::update_header() { header_t header { sampling_rate, bytes_written }; const auto seek_0_result = file.seek(0); if( seek_0_result.is_error() ) { return seek_0_result.error(); } const auto old_position = seek_0_result.value(); const auto write_result = file.write(&header, sizeof(header)); if( write_result.is_error() ) { return write_result.error(); } const auto seek_old_result = file.seek(old_position); if( seek_old_result.is_error() ) { return seek_old_result.error(); } return { }; }