re8_dic.c

关于AMR-WB+语音压缩编码的实现代码

#include "../include/amr_plus.h"
#define NB_SPHERE 32
#define NB_LEADER 36
#define NB_LDSIGN 224
#define NB_LDQ3   9
#define NB_LDQ4   27
/* NOTE the tables here consume 1034 (16-bit) Words,
 * assuming ALL values are stored as Words (even if they'd fit in bytes)
 */
/* table of successive powers of 2 (for the computation of the sign code of
   a signed leader */
const int tab_pow2[8]={128, 64, 32, 16, 8, 4, 2, 1};
/* table of factorial */
const int tab_factorial[8]={5040, 720, 120, 24, 6, 2, 1, 1};
/* Da_pos - Position of the first absolute leader on a spherical shell (or sphere) */
const int Da_pos[NB_SPHERE] = {
  0,  2,  5,  8, 13, 18, 20, 22, 23, 25, 26, 27, 27, 28, 28, 28,
 29, 30, 31, 31, 32, 32, 32, 32, 32, 34, 35, 35, 35, 35, 35, 35};
/* Da_nb - Number of absolute leaders on a spherical shell */
const int Da_nb[NB_SPHERE] = {
 2, 3, 3, 5, 5, 2, 2, 1, 2, 1, 1, 0, 1, 0, 0, 1,
 1, 1, 0, 1, 0, 0, 0, 0, 2, 1, 0, 0, 0, 0, 0, 1};
/* Da_id - identification code of an absolute leader */
const int Da_id[NB_LEADER] = {
 0x0001, 0x0004, 0x0008, 0x000B, 0x0020, 0x000C, 0x0015, 0x0024,
 0x0010, 0x001F, 0x0028, 0x0040, 0x004F, 0x0029, 0x002C, 0x0044,
 0x0059, 0x00A4, 0x0060, 0x00A8, 0x00C4, 0x012D, 0x0200, 0x0144,
 0x0204, 0x0220, 0x0335, 0x04E4, 0x0400, 0x0584, 0x0A20, 0x0A40,
 0x09C4, 0x12C4, 0x0C20, 0x2000};
/* Da_nq - Codebook number for each absolute leader */
const int Da_nq[NB_LEADER+2] = {
  2,  2,  3,  3,  2,  4,  4,  3,  4,  4,  4,  3,  4,  4,  4,  4,
  4,  3,  4,  4,  4,  4,  3,  4,  4,  4,  4,  4,  4,  4,  4,  4,
  4,  4,  4,  4,  0, 100};
/*  Da - Absolute leaders */
const int Da[NB_LEADER][8]={
  { 1,  1,  1,  1,  1,  1,  1,  1},
  { 2,  2,  0,  0,  0,  0,  0,  0},
  { 2,  2,  2,  2,  0,  0,  0,  0},
  { 3,  1,  1,  1,  1,  1,  1,  1},
  { 4,  0,  0,  0,  0,  0,  0,  0},
  { 2,  2,  2,  2,  2,  2,  0,  0},
  { 3,  3,  1,  1,  1,  1,  1,  1},
  { 4,  2,  2,  0,  0,  0,  0,  0},
  { 2,  2,  2,  2,  2,  2,  2,  2},
  { 3,  3,  3,  1,  1,  1,  1,  1},
  { 4,  2,  2,  2,  2,  0,  0,  0},
  { 4,  4,  0,  0,  0,  0,  0,  0},
  { 5,  1,  1,  1,  1,  1,  1,  1},
  { 3,  3,  3,  3,  1,  1,  1,  1},
  { 4,  2,  2,  2,  2,  2,  2,  0},
  { 4,  4,  2,  2,  0,  0,  0,  0},
  { 5,  3,  1,  1,  1,  1,  1,  1},
  { 6,  2,  0,  0,  0,  0,  0,  0},
  { 4,  4,  4,  0,  0,  0,  0,  0},
  { 6,  2,  2,  2,  0,  0,  0,  0},
  { 6,  4,  2,  0,  0,  0,  0,  0},
  { 7,  1,  1,  1,  1,  1,  1,  1},
  { 8,  0,  0,  0,  0,  0,  0,  0},
  { 6,  6,  0,  0,  0,  0,  0,  0},
  { 8,  2,  2,  0,  0,  0,  0,  0},
  { 8,  4,  0,  0,  0,  0,  0,  0},
  { 9,  1,  1,  1,  1,  1,  1,  1},
  {10,  2,  0,  0,  0,  0,  0,  0},
  { 8,  8,  0,  0,  0,  0,  0,  0},
  {10,  6,  0,  0,  0,  0,  0,  0},
  {12,  0,  0,  0,  0,  0,  0,  0},
  {12,  4,  0,  0,  0,  0,  0,  0},
  {10, 10,  0,  0,  0,  0,  0,  0},
  {14,  2,  0,  0,  0,  0,  0,  0},
  {12,  8,  0,  0,  0,  0,  0,  0},
  {16,  0,  0,  0,  0,  0,  0,  0}};
/* Ds - Sign codes of all signed leaders */
const int Ds[NB_LDSIGN]={
  0,3,15,63,255,
  0,64,192,
  0,16,48,112,240,
  1,7,31,127,128,131,143,191,
  0,128,
  0,4,12,28,60,124,252,
  0,3,15,63,65,71,95,192,195,207,255,
  0,32,96,128,160,224,
  0,1,3,7,15,31,63,127,255,
  1,7,31,32,35,47,97,103,127,224,227,239,
  0,8,24,56,120,128,136,152,184,248,
  0,64,192,
  0,3,15,63,129,135,159,255,
  0,3,15,17,23,48,51,63,113,119,240,243,255,
  0,2,6,14,30,62,126,128,130,134,142,158,190,254,
  0,16,48,64,80,112,192,208,240,
  1,7,31,64,67,79,127,128,131,143,191,193,199,223,
  0,64,128,192,
  0,32,96,224,
  0,16,48,112,128,144,176,240,
  0,32,64,96,128,160,192,224,
  1,7,31,127,128,131,143,191,
  0,128,
  0,64,192,
  0,32,96,128,160,224,
  0,64,128,192,
  0,3,15,63,129,135,159,255,
  0,64,128,192,
  0,64,192,
  0,64,128,192,
  0,128,
  0,64,128,192,
  0,64,192,
  0,64,128,192,
  0,64,128,192,
  0,128
};
/* Ns - Number of signed leader associated to a given absolute leader */
const int Ns[NB_LEADER]= {
   5,  3,  5,  8,  2,  7, 11,  6,  9, 12, 10,  3,
   8, 13, 14,  9, 14,  4,  4,  8,  8,  8,  2,  3,
   6,  4,  8,  4,  3,  4,  2,  4,  3,  4,  4,  2};
/* Ia - Position of the first signed leader associated to an absolute leader */
const int Ia[NB_LEADER]= {
    0,   5,   8,  13,  21,  23,  30,  41,  47,  56,  68,  78,
   81,  89, 102, 116, 125, 139, 143, 147, 155, 163, 171, 173,
  176, 182, 186, 194, 198, 201, 205, 207, 211, 214, 218, 222};
/* Is - Cardinalite offset of signed leaders */
const unsigned int Is[NB_LDSIGN]={
     0,     1,    29,    99,   127,   128,   156,   212,
   256,   326,   606,  1026,  1306,  1376,  1432,  1712,
  1880,  1888,  1896,  2064,  2344,   240,   248,     0,
    28,   196,   616,  1176,  1596,  1764,  1792,  1820,
  2240,  2660,  2688,  3024,  4144,  4480,  4508,  4928,
  5348,  2400,  2568,  2904,  3072,  3240,  3576,  5376,
  5377,  5385,  5413,  5469,  5539,  5595,  5623,  5631,
  5632,  5912,  6472,  6528,  6696,  8376,  9216, 10056,
 11736, 11904, 11960, 12520, 12800, 13080, 14200, 15880,
 17000, 17280, 17560, 18680, 20360, 21480,  3744,  3772,
  3828, 21760, 21768, 21936, 22216, 22272, 22328, 22608,
 22776, 22784, 22854, 23274, 23344, 24464, 25584, 26004,
 28524, 28944, 30064, 31184, 31254, 31674, 31744, 31800,
 32136, 32976, 34096, 34936, 35272, 35328, 35384, 35720,
 36560, 37680, 38520, 38856, 38912, 39332, 40172, 40592,
 41432, 43112, 43952, 44372, 45212, 45632, 45968, 47088,
 47424, 47480, 48320, 49160, 49216, 49272, 50112, 50952,
 51008, 51344, 52464,  3856,  3912,  3968,  4024, 52800,
 52856, 53024, 53192, 53248, 53528, 54368, 55208, 55488,
 55768, 56608, 57448, 57728, 58064, 58400, 58736, 59072,
 59408, 59744, 60080, 60416, 60472, 60752, 60920, 60928,
 60936, 61104, 61384,  4080,  4088, 61440, 61468, 61524,
 61552, 61720, 62056, 62224, 62392, 62728, 62896, 62952,
 63008, 63064, 63120, 63128, 63296, 63576, 63632, 63688,
 63968, 64136, 64144, 64200, 64256, 64312, 64368, 64396,
 64452, 64480, 64536, 64592, 64648, 64704, 64712, 64720,
 64776, 64832, 64888, 64944, 64972, 65028, 65056, 65112,
 65168, 65224, 65280, 65336, 65392, 65448, 65504, 65512};
/* A3 - Number of the absolute leaders in codebooks Q2 and Q3 */
const int A3[NB_LDQ3]={
   0,  1,  4,  2,  3,  7, 11, 17, 22};
/* A4 - Number of the absolute leaders in codebook Q4 */
const int A4[NB_LDQ4]={
   5,  6,  8,  9, 10, 12, 13, 14, 15,
  16, 18, 19, 20, 21, 23, 24, 25, 26,
  27, 28, 29, 30, 31, 32, 33, 34, 35};
/* I3 - Cardinality offsets for absolute leaders in Q3 */
const unsigned int I3[NB_LDQ3]={
      0,   128,   240,   256,  1376,  2400,  3744,  3856,  4080};
/* I4 - Cardinality offset for absolute leaders in Q4 */
const unsigned int I4[NB_LDQ4]={
      0,  1792,  5376,  5632, 12800, 21760, 22784, 31744, 38912,
  45632, 52800, 53248, 57728, 60416, 61440, 61552, 62896, 63120,
  64144, 64368, 64480, 64704, 64720, 64944, 65056, 65280, 65504};