ref: ca201805c6603ddcb2617976a40566f4b58703cb
dir: /src/wav.h/
/* wav.h - various structures and defines used by WAV converter. */
#ifndef WAV_H_INCLUDED
#define WAV_H_INCLUDED
/* purloined from public Microsoft RIFF docs */
#define WAVE_FORMAT_UNKNOWN (0x0000)
#define WAVE_FORMAT_PCM (0x0001)
#define WAVE_FORMAT_ADPCM (0x0002)
#define WAVE_FORMAT_IEEE_FLOAT (0x0003)
#define WAVE_FORMAT_ALAW (0x0006)
#define WAVE_FORMAT_MULAW (0x0007)
#define WAVE_FORMAT_OKI_ADPCM (0x0010)
#define WAVE_FORMAT_IMA_ADPCM (0x0011)
#define WAVE_FORMAT_DIGISTD (0x0015)
#define WAVE_FORMAT_DIGIFIX (0x0016)
#define WAVE_FORMAT_DOLBY_AC2 (0x0030)
#define WAVE_FORMAT_GSM610 (0x0031)
#define WAVE_FORMAT_ROCKWELL_ADPCM (0x003b)
#define WAVE_FORMAT_ROCKWELL_DIGITALK (0x003c)
#define WAVE_FORMAT_G721_ADPCM (0x0040)
#define WAVE_FORMAT_G728_CELP (0x0041)
#define WAVE_FORMAT_MPEG (0x0050)
#define WAVE_FORMAT_MPEGLAYER3 (0x0055)
#define WAVE_FORMAT_G726_ADPCM (0x0064)
#define WAVE_FORMAT_G722_ADPCM (0x0065)
typedef struct MsState {
LONG index; /* Index into step size table */
ULONG bpred; /* Most recent sample value */
LONG sample1;
LONG sample2;
} MsState_t;
typedef struct ImaState {
int index; /* Index into step size table */
int previousValue; /* Most recent sample value */
} ImaState_t;
#endif /* WAV_H_INCLUDED */