audio_wav.h

Idź do dokumentacji tego pliku.

/* *.wav I/O stolen from xawtv (recode program) which was stolen from cdda2wav */
/* Copyright (C) by Heiko Eissfeldt */

typedef uint8_t   BYTE;
typedef uint16_t  WORD;
typedef uint32_t  DWORD;
typedef uint32_t  FOURCC;       /* a four character code */

/* flags for 'wFormatTag' field of WAVEFORMAT */
#define WAVE_FORMAT_PCM 1

/* MMIO macros */
#define mmioFOURCC(ch0, ch1, ch2, ch3) \
  ((DWORD)(BYTE)(ch0) | ((DWORD)(BYTE)(ch1) << 8) | \
  ((DWORD)(BYTE)(ch2) << 16) | ((DWORD)(BYTE)(ch3) << 24))

#define FOURCC_RIFF     mmioFOURCC ('R', 'I', 'F', 'F')
#define FOURCC_LIST     mmioFOURCC ('L', 'I', 'S', 'T')
#define FOURCC_WAVE     mmioFOURCC ('W', 'A', 'V', 'E')
#define FOURCC_FMT      mmioFOURCC ('f', 'm', 't', ' ')
#define FOURCC_DATA     mmioFOURCC ('d', 'a', 't', 'a')

typedef struct CHUNKHDR {
    FOURCC ckid;                /* chunk ID */
    DWORD dwSize;               /* chunk size */
} CHUNKHDR;

/* simplified Header for standard WAV files */
typedef struct WAVEHDR {
    CHUNKHDR chkRiff;