src/g711.h

   1 /* libSoX G711.h - include for G711 u-law and a-law conversion routines
   2  *
   3  * Copyright (C) 2001 Chris Bagwell
   4  *
   5  * Permission to use, copy, modify, and distribute this software and its
   6  * documentation for any purpose and without fee is hereby granted, provided
   7  * that the above copyright notice appear in all copies and that both that
   8  * copyright notice and this permission notice appear in supporting
   9  * documentation.  This software is provided "as is" without express or
  10  * implied warranty.
  11  */
  12
  13 extern const uint8_t lsx_13linear2alaw[0x2000];
  14 extern const int16_t lsx_alaw2linear16[256];
  15 #define sox_13linear2alaw(sw) (lsx_13linear2alaw[((sw) + 0x1000)])
  16 #define sox_alaw2linear16(uc) (lsx_alaw2linear16[uc])
  17
  18 extern const uint8_t lsx_14linear2ulaw[0x4000];
  19 extern const int16_t lsx_ulaw2linear16[256];
  20 #define sox_14linear2ulaw(sw) (lsx_14linear2ulaw[((sw) + 0x2000)])
  21 #define sox_ulaw2linear16(uc) (lsx_ulaw2linear16[uc])