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/* $OpenBSD: adpcm.h,v 1.1.1.1 2003/02/01 17:58:18 jason Exp $ */
/*
** adpcm.h - include file for adpcm coder.
**
** Version 1.0, 7-Jul-92.
*/
struct adpcm_state {
int16_t valprev; /* Previous output value */
char index; /* Index into stepsize table */
};
#ifdef __STDC__
#define ARGS(x) x
#else
#define ARGS(x) ()
#endif
void adpcm_coder ARGS((int16_t [], char [], int, struct adpcm_state *));
void adpcm_decoder ARGS((char [], int16_t [], int, struct adpcm_state *));
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