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C/C++ Source or Header  |  1993-10-17  |  372b  |  14 lines
  1. /*
  2. ** adpcm.h - include file for adpcm coder.
  3. **
  4. ** Version 1.0, 7-Jul-92.
  5. */
  6.  
  7. struct adpcm_state {
  8.     short      valprev;        /* Previous output value */
  9.     char       index;          /* Index into stepsize table */
  10. };
  11.  
  12. void adpcm_coder (short [], char [], long, struct adpcm_state *);
  13. void adpcm_decoder (char [], short [], int, struct adpcm_state *);
  14.