view mgw/g711_decode.c @ 124:7e04d28fae8b

sip-in: default use-100rel to no BulkVS servers act badly when we send a reliable 180 Ringing response to an incoming call, even though they advertise 100rel support in the Supported header in the INVITE packet, and we probably won't be implementing 100rel for outbound because doing per-the-spec PRACK as a UAC is just too burdensome. Therefore, we need to consider 100rel extension as not-really-supported in themwi-system-sw.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 01 Oct 2022 15:54:50 -0800
parents f280328e7e2e
children e80f158333c5
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/*
 * This module contains decoding tables for G.711 PCMU and PCMA,
 * lifted from the source from libgsm companion 'toast' utility.
 */

#include <stdint.h>

uint16_t pcmu_decode_table[256] = {
	33280, 34308, 35336, 36364, 37393, 38421, 39449, 40477,
	41505, 42534, 43562, 44590, 45618, 46647, 47675, 48703,
	49474, 49988, 50503, 51017, 51531, 52045, 52559, 53073,
	53587, 54101, 54616, 55130, 55644, 56158, 56672, 57186,
	57572, 57829, 58086, 58343, 58600, 58857, 59114, 59371,
	59628, 59885, 60142, 60399, 60656, 60913, 61171, 61428,
	61620, 61749, 61877, 62006, 62134, 62263, 62392, 62520,
	62649, 62777, 62906, 63034, 63163, 63291, 63420, 63548,
	63645, 63709, 63773, 63838, 63902, 63966, 64030, 64095,
	64159, 64223, 64287, 64352, 64416, 64480, 64544, 64609,
	64657, 64689, 64721, 64753, 64785, 64818, 64850, 64882,
	64914, 64946, 64978, 65010, 65042, 65075, 65107, 65139,
	65163, 65179, 65195, 65211, 65227, 65243, 65259, 65275,
	65291, 65308, 65324, 65340, 65356, 65372, 65388, 65404,
	65416, 65424, 65432, 65440, 65448, 65456, 65464, 65472,
	65480, 65488, 65496, 65504, 65512, 65520, 65528,     0,
	32256, 31228, 30200, 29172, 28143, 27115, 26087, 25059,
	24031, 23002, 21974, 20946, 19918, 18889, 17861, 16833,
	16062, 15548, 15033, 14519, 14005, 13491, 12977, 12463,
	11949, 11435, 10920, 10406,  9892,  9378,  8864,  8350,
	 7964,  7707,  7450,  7193,  6936,  6679,  6422,  6165,
	 5908,  5651,  5394,  5137,  4880,  4623,  4365,  4108,
	 3916,  3787,  3659,  3530,  3402,  3273,  3144,  3016,
	 2887,  2759,  2630,  2502,  2373,  2245,  2116,  1988,
	 1891,  1827,  1763,  1698,  1634,  1570,  1506,  1441,
	 1377,  1313,  1249,  1184,  1120,  1056,   992,   927,
	  879,   847,   815,   783,   751,   718,   686,   654,
	  622,   590,   558,   526,   494,   461,   429,   397,
	  373,   357,   341,   325,   309,   293,   277,   261,
	  245,   228,   212,   196,   180,   164,   148,   132,
	  120,   112,   104,    96,    88,    80,    72,    64,
	   56,    48,    40,    32,    24,    16,    8,      0
};

uint16_t pcma_decode_table[256] = {
 60032, 60288, 59520, 59776, 61056, 61312, 60544, 60800,
 57984, 58240, 57472, 57728, 59008, 59264, 58496, 58752,
 62784, 62912, 62528, 62656, 63296, 63424, 63040, 63168,
 61760, 61888, 61504, 61632, 62272, 62400, 62016, 62144,
 43520, 44544, 41472, 42496, 47616, 48640, 45568, 46592,
 35328, 36352, 33280, 34304, 39424, 40448, 37376, 38400,
 54528, 55040, 53504, 54016, 56576, 57088, 55552, 56064,
 50432, 50944, 49408, 49920, 52480, 52992, 51456, 51968,
 65192, 65208, 65160, 65176, 65256, 65272, 65224, 65240,
 65064, 65080, 65032, 65048, 65128, 65144, 65096, 65112,
 65448, 65464, 65416, 65432, 65512, 65528, 65480, 65496,
 65320, 65336, 65288, 65304, 65384, 65400, 65352, 65368,
 64160, 64224, 64032, 64096, 64416, 64480, 64288, 64352,
 63648, 63712, 63520, 63584, 63904, 63968, 63776, 63840,
 64848, 64880, 64784, 64816, 64976, 65008, 64912, 64944,
 64592, 64624, 64528, 64560, 64720, 64752, 64656, 64688,
  5504,  5248,  6016,  5760,  4480,  4224,  4992,  4736,
  7552,  7296,  8064,  7808,  6528,  6272,  7040,  6784,
  2752,  2624,  3008,  2880,  2240,  2112,  2496,  2368,
  3776,  3648,  4032,  3904,  3264,  3136,  3520,  3392,
 22016, 20992, 24064, 23040, 17920, 16896, 19968, 18944,
 30208, 29184, 32256, 31232, 26112, 25088, 28160, 27136,
 11008, 10496, 12032, 11520,  8960,  8448,  9984,  9472,
 15104, 14592, 16128, 15616, 13056, 12544, 14080, 13568,
   344,   328,   376,   360,   280,   264,   312,   296,
   472,   456,   504,   488,   408,   392,   440,   424,
    88,    72,   120,   104,    24,     8,    56,    40,
   216,   200,   248,   232,   152,   136,   184,   168,
  1376,  1312,  1504,  1440,  1120,  1056,  1248,  1184,
  1888,  1824,  2016,  1952,  1632,  1568,  1760,  1696,
   688,   656,   752,   720,   560,   528,   624,   592,
   944,   912,  1008,   976,   816,   784,   880,   848
};