RIFF.hpp

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/*
 * =====================================================================
 *
 *          Photon
 *          Copyright Amlal EL Mahrouss, all rights reserved.
 *
 * =====================================================================
 */
 
#pragma once
 
#include <core/Core.hpp>
 
#define PHOTON_RIFF_MAG "RIFF"
 
// WAVE file header format
struct PHOTON_RIFF_HEADER
{
    unsigned char riff[4];              // RIFF string
    unsigned int overall_size;          // overall size of file in bytes
    unsigned char wave[4];              // WAVE string
    unsigned char fmt_chunk_marker[4];  // fmt string with trailing null char
    unsigned int length_of_fmt;         // length of the format data
    unsigned int format_type;           // format type. 1-PCM, 3- IEEE float, 6 - 8bit A law, 7 - 8bit mu law
    unsigned int channels;              // no.of channels
    unsigned int sample_rate;           // sampling rate (blocks per second)
    unsigned int byterate;              // SampleRate * NumChannels * BitsPerSample/8
    unsigned int block_align;           // NumChannels * BitsPerSample/8
    unsigned int bits_per_sample;       // bits per sample, 8- 8bits, 16- 16 bits etc
    unsigned char data_chunk_header[4]; // DATA string or FLLR string
    unsigned int data_size; // NumSamples * NumChannels * BitsPerSample/8 - size of the next chunk that will be read
};