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/* libst.h - include file for portable sound tools library 
** 
** Copyright (C) 1989 by Jef Poskanzer. 
** 
** Permission to use, copy, modify, and distribute this software and its 
** documentation for any purpose and without fee is hereby granted, provided 
** that the above copyright notice appear in all copies and that both that 
** copyright notice and this permission notice appear in supporting 
** documentation.  This software is provided "as is" without express or 
** implied warranty. 
*/ 
 
#define SAMPLES_PER_SECOND 8192 
 
#define MINLIN -32768 
#define MAXLIN 32767 
#define LINCLIP(x) do { if ( x < MINLIN ) x = MINLIN ; else if ( x > MAXLIN ) x = MAXLIN; } while ( 0 ) 
 
unsigned char st_linear_to_ulaw( /* int sample */ ); 
int st_ulaw_to_linear_slow( /* unsigned char ulawbyte */ ); 
 
/* 
** This macro converts from ulaw to 16 bit linear, faster. 
** 
** Jef Poskanzer 
** 23 October 1989 
** 
** Input: 8 bit ulaw sample 
** Output: signed 16 bit linear sample 
*/ 
#define st_ulaw_to_linear(ulawbyte) ulaw_table[ulawbyte] 
 
static int ulaw_table[256] = { 
    -32124, -31100, -30076, -29052, -28028, -27004, -25980, -24956, 
    -23932, -22908, -21884, -20860, -19836, -18812, -17788, -16764, 
    -15996, -15484, -14972, -14460, -13948, -13436, -12924, -12412, 
    -11900, -11388, -10876, -10364,  -9852,  -9340,  -8828,  -8316, 
     -7932,  -7676,  -7420,  -7164,  -6908,  -6652,  -6396,  -6140, 
     -5884,  -5628,  -5372,  -5116,  -4860,  -4604,  -4348,  -4092, 
     -3900,  -3772,  -3644,  -3516,  -3388,  -3260,  -3132,  -3004, 
     -2876,  -2748,  -2620,  -2492,  -2364,  -2236,  -2108,  -1980, 
     -1884,  -1820,  -1756,  -1692,  -1628,  -1564,  -1500,  -1436, 
     -1372,  -1308,  -1244,  -1180,  -1116,  -1052,   -988,   -924, 
      -876,   -844,   -812,   -780,   -748,   -716,   -684,   -652, 
      -620,   -588,   -556,   -524,   -492,   -460,   -428,   -396, 
      -372,   -356,   -340,   -324,   -308,   -292,   -276,   -260, 
      -244,   -228,   -212,   -196,   -180,   -164,   -148,   -132, 
      -120,   -112,   -104,    -96,    -88,    -80,    -72,    -64, 
       -56,    -48,    -40,    -32,    -24,    -16,     -8,      0, 
     32124,  31100,  30076,  29052,  28028,  27004,  25980,  24956, 
     23932,  22908,  21884,  20860,  19836,  18812,  17788,  16764, 
     15996,  15484,  14972,  14460,  13948,  13436,  12924,  12412, 
     11900,  11388,  10876,  10364,   9852,   9340,   8828,   8316, 
      7932,   7676,   7420,   7164,   6908,   6652,   6396,   6140, 
      5884,   5628,   5372,   5116,   4860,   4604,   4348,   4092, 
      3900,   3772,   3644,   3516,   3388,   3260,   3132,   3004, 
      2876,   2748,   2620,   2492,   2364,   2236,   2108,   1980, 
      1884,   1820,   1756,   1692,   1628,   1564,   1500,   1436, 
      1372,   1308,   1244,   1180,   1116,   1052,    988,    924, 
       876,    844,    812,    780,    748,    716,    684,    652, 
       620,    588,    556,    524,    492,    460,    428,    396, 
       372,    356,    340,    324,    308,    292,    276,    260, 
       244,    228,    212,    196,    180,    164,    148,    132, 
       120,    112,    104,     96,     88,     80,     72,     64, 
	56,     48,     40,     32,     24,     16,      8,      0 };