mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
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54 lines
1.7 KiB
C++
54 lines
1.7 KiB
C++
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/*
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* Copyright (C) 2016 Jared Boone, ShareBrained Technology, Inc.
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*
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* This file is part of PortaPack.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#include "io_wave.hpp"
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Optional<File::Error> WAVFileWriter::create(
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const std::filesystem::path& filename,
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size_t sampling_rate
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) {
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sampling_rate = sampling_rate;
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const auto create_error = FileWriter::create(filename);
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if( create_error.is_valid() ) {
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return create_error;
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} else {
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return update_header();
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}
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}
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Optional<File::Error> WAVFileWriter::update_header() {
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header_t header { sampling_rate, bytes_written };
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const auto seek_0_result = file.seek(0);
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if( seek_0_result.is_error() ) {
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return seek_0_result.error();
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}
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const auto old_position = seek_0_result.value();
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const auto write_result = file.write(&header, sizeof(header));
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if( write_result.is_error() ) {
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return write_result.error();
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}
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const auto seek_old_result = file.seek(old_position);
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if( seek_old_result.is_error() ) {
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return seek_old_result.error();
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}
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return { };
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}
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