wave.h

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/*
 * Copyright (C) 2017-2026 by Norbert Schlia (nschlia@oblivion-software.de)
 *
 * 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 3 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 St, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * On Debian systems, the complete text of the GNU General Public License
 * Version 3 can be found in `/usr/share/common-licenses/GPL-3'.
 */
 
#ifndef WAVE_H
#define WAVE_H
 
#pragma once
 
#include <stdint.h>
 
#include <array>
 
#pragma pack(push, 1)
 
typedef struct WAV_HEADER
{
    std::array<uint8_t, 4>  m_riff_header;      
    uint32_t                m_wav_size;
    std::array<uint8_t, 4>  m_wave_header;      
    std::array<uint8_t, 4>  m_fmt_header;       
    uint32_t                m_fmt_chunk_size;   
    uint16_t                m_audio_format;     
    uint16_t                m_num_channels;     
    uint32_t                m_sample_rate;      
    uint32_t                m_byte_rate;        
    uint16_t                m_sample_alignment; 
    uint16_t                m_bit_depth;        
} WAV_HEADER;
 
static_assert(sizeof(WAV_HEADER) == 36);
 
typedef struct WAV_HEADER_EX
{
    uint16_t                m_extension_size;           
    uint16_t                m_valid_bits_per_sample;    
    uint32_t                m_channel_mask;             
    std::array<uint8_t, 16> m_sub_format_guid;          
} WAV_HEADER_EX;
 
static_assert(sizeof(WAV_HEADER_EX) == 24);
 
typedef struct WAV_FACT
{
    std::array<uint8_t, 4>  m_chunk_id;                 
    uint32_t                m_body_size;                
    uint32_t                m_number_of_sample_frames;  
} WAV_FACT;
 
static_assert(sizeof(WAV_FACT) == 12);
 
typedef struct WAV_LIST_HEADER
{
    std::array<uint8_t, 4>  m_list_header;              
    uint32_t                m_data_bytes;               
    std::array<uint8_t, 4>  m_list_type;                
} WAV_LIST_HEADER;
 
static_assert(sizeof(WAV_LIST_HEADER) == 12);
 
typedef struct WAV_DATA_HEADER
{
    std::array<uint8_t, 4>  m_data_header;              
    uint32_t                m_data_bytes;               
    // Remainder of wave file: actual sound data
    // uint8_t m_bytes[];
} WAV_DATA_HEADER;
 
static_assert(sizeof(WAV_DATA_HEADER) == 8);
 
#pragma pack(pop)
 
#endif // WAVE_H