WavHeader.h

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#pragma once
 
#include <limits.h>
#include <stdint.h>
 
#include "Adc.h"
 
using adc::BitResolution;
 
#define U8_BITS CHAR_BIT
#define U16_BITS (2 * U8_BITS)
 
struct WavHeader {
    const char chunk_id[4] = {'R', 'I', 'F', 'F'};
    uint32_t chunk_size = 36;
    const char format[4] = {'W', 'A', 'V', 'E'};
    const char subchunk_id[4] = {'f', 'm', 't', ' '};
    const uint32_t subchunk_size = 16;
    const uint16_t audio_format = 1;
    const uint16_t num_channels = 1;
    uint32_t sample_rate = 0;
    uint32_t byte_rate = 0;
    uint16_t block_align = 2;
    uint16_t bits_per_sample;
    const char sub_chunk_2_id[4] = {'d', 'a', 't', 'a'};
    uint32_t sub_chunk_2_size = 0;
 
    void fill(BitResolution res, uint32_t file_size, uint32_t sample_rate);
};