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FFmpeg/libavcodec/mpegaudiodectab.h

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  1. /*

  2.  * MPEG Audio decoder

  3.  * copyright (c) 2002 Fabrice Bellard

  4.  *

  5.  * This file is part of FFmpeg.

  6.  *

  7.  * FFmpeg is free software; you can redistribute it and/or

  8.  * modify it under the terms of the GNU Lesser General Public

  9.  * License as published by the Free Software Foundation; either

  10.  * version 2.1 of the License, or (at your option) any later version.

  11.  *

  12.  * FFmpeg is distributed in the hope that it will be useful,

  13.  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  14.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

  15.  * Lesser General Public License for more details.

  16.  *

  17.  * You should have received a copy of the GNU Lesser General Public

  18.  * License along with FFmpeg; if not, write to the Free Software

  19.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

  20.  */

  21. 

  22. /**

  23.  * @file

  24.  * mpeg audio layer decoder tables.

  25.  */

  26. 

  27. #ifndef AVCODEC_MPEGAUDIODECTAB_H

  28. #define AVCODEC_MPEGAUDIODECTAB_H

  29. 

  30. #include <stddef.h>

  31. #include <stdint.h>

  32. 

  33. #include "mpegaudio.h"

  34. 

  35. /*******************************************************/

  36. /* layer 3 tables */

  37. 

  38. /* layer 3 huffman tables */

  39. typedef struct HuffTable {

  40.     int nb_codes;

  41.     const uint8_t *bits;

  42.     const uint8_t *symbols;

  43. } HuffTable;

  44. 

  45. /* layer3 scale factor size */

  46. static const uint8_t slen_table[2][16] = {

  47.     { 0, 0, 0, 0, 3, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4 },

  48.     { 0, 1, 2, 3, 0, 1, 2, 3, 1, 2, 3, 1, 2, 3, 2, 3 },

  49. };

  50. 

  51. /* number of lsf scale factors for a given size */

  52. static const uint8_t lsf_nsf_table[6][3][4] = {

  53.     { {  6,  5,  5, 5 }, {  9,  9,  9, 9 }, {  6,  9,  9, 9 } },

  54.     { {  6,  5,  7, 3 }, {  9,  9, 12, 6 }, {  6,  9, 12, 6 } },

  55.     { { 11, 10,  0, 0 }, { 18, 18,  0, 0 }, { 15, 18,  0, 0 } },

  56.     { {  7,  7,  7, 0 }, { 12, 12, 12, 0 }, {  6, 15, 12, 0 } },

  57.     { {  6,  6,  6, 3 }, { 12,  9,  9, 6 }, {  6, 12,  9, 6 } },

  58.     { {  8,  8,  5, 0 }, { 15, 12,  9, 0 }, {  6, 18,  9, 0 } },

  59. };

  60. 

  61. /* mpegaudio layer 3 huffman tables */

  62. static const uint8_t mpa_huffbits_1[4] = {

  63.      3,  3,  2,  1,

  64. };

  65. 

  66. static const uint8_t mpa_huffbits_2[9] = {

  67.      6,  6,  5,  5,  5,  3,  3,  3,  1,

  68. };

  69. 

  70. static const uint8_t mpa_huffbits_3[9] = {

  71.      6,  6,  5,  5,  5,  3,  2,  2,  2,

  72. };

  73. 

  74. static const uint8_t mpa_huffbits_5[16] = {

  75.      8,  8,  7,  6,  7,  7,  7,  7,  6,  6,  6,  6,  3,  3,  3,  1,

  76. };

  77. 

  78. static const uint8_t mpa_huffbits_6[16] = {

  79.      7,  7,  6,  6,  6,  5,  5,  5,  5,  4,  4,  4,  3,  2,  3,  3,

  80. };

  81. 

  82. static const uint8_t mpa_huffbits_7[36] = {

  83.     10, 10, 10, 10,  9,  9,  9,  9,  8,  8,  9,  9,  8,  9,  9,  8,  8,  7,  7,

  84.      7,  8,  8,  8,  8,  7,  7,  7,  7,  6,  5,  6,  6,  4,  3,  3,  1,

  85. };

  86. 

  87. static const uint8_t mpa_huffbits_8[36] = {

  88.     11, 11, 10,  9, 10, 10,  9,  9,  9,  8,  8,  9,  9,  9,  9,  8,  8,  8,  7,

  89.      8,  8,  8,  8,  8,  8,  8,  8,  6,  6,  6,  4,  4,  2,  3,  3,  2,

  90. };

  91. 

  92. static const uint8_t mpa_huffbits_9[36] = {

  93.      9,  9,  8,  8,  9,  9,  8,  8,  8,  8,  7,  7,  7,  8,  8,  7,  7,  7,  7,

  94.      6,  6,  6,  6,  5,  5,  6,  6,  5,  5,  4,  4,  4,  3,  3,  3,  3,

  95. };

  96. 

  97. static const uint8_t mpa_huffbits_10[64] = {

  98.     11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 11, 11, 10,  9,  9, 10,

  99.     10,  9,  9, 10, 10,  9, 10, 10,  8,  8,  9,  9, 10, 10,  9,  9, 10, 10,  8,

  100.      8,  8,  9,  9,  9,  9,  9,  9,  8,  8,  8,  8,  8,  8,  7,  7,  7,  7,  6,

  101.      6,  6,  6,  4,  3,  3,  1,

  102. };

  103. 

  104. static const uint8_t mpa_huffbits_11[64] = {

  105.     10, 10, 10, 10, 10, 10, 10, 11, 11, 10, 10,  9,  9,  9, 10, 10, 10, 10,  8,

  106.      8,  9,  9,  7,  8,  8,  8,  8,  8,  9,  9,  9,  9,  8,  7,  8,  8,  7,  7,

  107.      8,  8,  8,  9,  9,  8,  8,  8,  8,  8,  8,  7,  7,  6,  6,  7,  7,  6,  5,

  108.      4,  5,  5,  3,  3,  3,  2,

  109. };

  110. 

  111. static const uint8_t mpa_huffbits_12[64] = {

  112.     10, 10,  9,  9,  9,  9,  9,  9,  9,  8,  8,  9,  9,  8,  8,  8,  8,  8,  8,

  113.      9,  9,  8,  8,  8,  8,  8,  9,  9,  7,  7,  7,  8,  8,  8,  8,  8,  8,  7,

  114.      7,  7,  7,  8,  8,  7,  7,  7,  6,  6,  6,  6,  7,  7,  6,  5,  5,  5,  4,

  115.      4,  5,  5,  4,  3,  3,  3,

  116. };

  117. 

  118. static const uint8_t mpa_huffbits_13[256] = {

  119.     19, 19, 18, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 15, 15, 16,

  120.     16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 16, 16, 15, 16, 16, 14, 14, 15,

  121.     15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 14, 13, 14,

  122.     14, 13, 13, 14, 14, 13, 14, 14, 13, 14, 14, 13, 14, 14, 13, 13, 14, 14, 12,

  123.     12, 12, 13, 13, 13, 13, 13, 13, 12, 13, 13, 12, 12, 13, 13, 13, 13, 13, 13,

  124.     13, 13, 13, 13, 13, 13, 12, 12, 13, 13, 12, 12, 12, 12, 13, 13, 13, 13, 12,

  125.     13, 13, 12, 11, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 12, 12, 11,

  126.     11, 12, 12, 11, 12, 12, 12, 12, 11, 11, 12, 12, 11, 12, 12, 11, 12, 12, 11,

  127.     12, 12, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 11, 11,

  128.     10, 11, 11, 10, 11, 11, 11, 11, 10, 10, 11, 11, 10, 10, 11, 11, 11, 11, 11,

  129.     11,  9,  9, 10, 10, 10, 10, 10, 11, 11,  9,  9,  9, 10, 10,  9,  9, 10, 10,

  130.     10, 10, 10, 10, 10, 10, 10, 10,  8,  9,  9,  9,  9,  9,  9, 10, 10,  9,  9,

  131.      9,  8,  8,  9,  9,  9,  9,  9,  9,  8,  7,  8,  8,  8,  8,  7,  7,  7,  7,

  132.      7,  6,  6,  6,  6,  4,  4,  3,  1,

  133. };

  134. 

  135. static const uint8_t mpa_huffbits_15[256] = {

  136.     13, 13, 13, 13, 12, 13, 13, 13, 13, 13, 13, 12, 13, 13, 12, 12, 12, 12, 12,

  137.     12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13,

  138.     13, 11, 11, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 12, 12, 11, 11, 11, 11,

  139.     11, 11, 11, 11, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,

  140.     11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 11, 11, 11, 11, 11,

  141.     11, 10, 11, 11, 11, 11, 11, 11, 10, 10, 11, 11, 10, 10, 10, 10, 11, 11, 10,

  142.     10, 10, 10, 10, 10, 10, 11, 11, 10, 10, 10, 10, 10, 11, 11,  9, 10, 10, 10,

  143.     10, 10, 10, 10, 10, 10, 10, 10, 10,  9, 10, 10, 10, 10,  9, 10, 10,  9, 10,

  144.     10, 10, 10, 10, 10, 10, 10,  9,  9,  9,  9,  9,  9,  9, 10, 10,  9,  9,  9,

  145.      9,  9,  9, 10, 10,  9,  9,  9,  9,  9,  9,  8,  9,  9,  9,  9,  9,  9,  9,

  146.      9,  9,  9,  8,  8,  8,  8,  9,  9,  9,  9,  9,  9,  9,  9,  8,  8,  8,  8,

  147.      8,  8,  9,  9,  8,  8,  8,  8,  8,  8,  8,  9,  9,  8,  7,  8,  8,  7,  7,

  148.      7,  7,  8,  8,  7,  7,  7,  7,  7,  6,  7,  7,  6,  6,  7,  7,  6,  6,  6,

  149.      5,  5,  5,  5,  5,  3,  4,  4,  3,

  150. };

  151. 

  152. static const uint8_t mpa_huffbits_16[256] = {

  153.     11, 11, 11, 11, 11, 11, 11, 11, 10, 11, 11, 11, 11, 10, 10, 10, 10, 10,  8,

  154.     10, 10,  9,  9,  9,  9, 10, 16, 17, 17, 15, 15, 16, 16, 14, 15, 15, 14, 14,

  155.     15, 15, 14, 14, 15, 15, 15, 15, 14, 15, 15, 14, 13,  8,  9,  9,  8,  8, 13,

  156.     14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 14, 14, 14, 14, 13, 14, 14,

  157.     13, 13, 13, 14, 14, 14, 14, 13, 13, 14, 14, 13, 14, 14, 12, 13, 13, 13, 13,

  158.     13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 13, 13, 13, 13, 13, 13, 12, 13,

  159.     13, 12, 12, 13, 13, 11, 12, 12, 12, 12, 12, 12, 12, 13, 13, 11, 12, 12, 12,

  160.     12, 11, 12, 12, 12, 12, 12, 12, 12, 12, 11, 12, 12, 11, 11, 11, 11, 12, 12,

  161.     12, 12, 12, 12, 12, 12, 11, 12, 12, 11, 12, 12, 11, 12, 12, 11, 12, 12, 11,

  162.     10, 10, 11, 11, 11, 11, 11, 11, 10, 10, 11, 11, 10, 10, 11, 11, 11, 11, 11,

  163.     11, 11, 11, 10, 11, 11, 10, 10, 10, 11, 11, 10, 10, 11, 11, 10, 10, 11, 11,

  164.     10,  9,  9, 10, 10, 10, 10, 10, 10,  9,  9,  9, 10, 10,  9, 10, 10,  9,  9,

  165.      8,  9,  9,  9,  9,  9,  9,  9,  9,  8,  8,  9,  9,  8,  8,  7,  7,  8,  8,

  166.      7,  6,  6,  6,  6,  4,  4,  3,  1,

  167. };

  168. 

  169. static const uint8_t mpa_huffbits_24[256] = {

  170.      8,  8,  8,  8,  8,  8,  8,  8,  7,  8,  8,  7,  7,  8,  8,  7,  7,  7,  7,

  171.      7,  7,  7,  7,  7,  7,  7,  7,  8,  8,  9, 11, 11, 11, 11, 11, 11, 11, 11,

  172.     11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,

  173.     11,  4, 11, 11, 11, 11, 12, 12, 11, 10, 11, 11, 10, 10, 10, 10, 11, 11, 10,

  174.     10, 10, 10, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,

  175.     10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,

  176.     10, 10, 10, 10, 10, 10, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,

  177.     10, 10, 11, 11, 10, 11, 11, 10,  9, 10, 10, 10, 10, 11, 11, 10,  9,  9, 10,

  178.     10,  9, 10, 10, 10, 10,  9,  9, 10, 10,  9,  9,  9,  9,  9,  9,  9,  9,  9,

  179.      9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,

  180.      9,  9,  9,  9,  9,  9,  9,  9, 10, 10,  9,  9,  9, 10, 10,  8,  9,  9,  8,

  181.      8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  9,  9,  8,  8,  8,  8,  8,

  182.      8,  9,  9,  7,  8,  8,  7,  7,  7,  7,  7,  8,  8,  7,  7,  6,  6,  7,  7,

  183.      6,  5,  5,  6,  6,  4,  4,  4,  4,

  184. };

  185. 

  186. static const uint8_t mpa_huffsyms_1[4] = {

  187.     0x11, 0x01, 0x10, 0x00,

  188. };

  189. 

  190. static const uint8_t mpa_huffsyms_2[9] = {

  191.     0x22, 0x02, 0x12, 0x21, 0x20, 0x11, 0x01, 0x10, 0x00,

  192. };

  193. 

  194. static const uint8_t mpa_huffsyms_3[9] = {

  195.     0x22, 0x02, 0x12, 0x21, 0x20, 0x10, 0x11, 0x01, 0x00,

  196. };

  197. 

  198. static const uint8_t mpa_huffsyms_5[16] = {

  199.     0x33, 0x23, 0x32, 0x31, 0x13, 0x03, 0x30, 0x22, 0x12, 0x21, 0x02, 0x20,

  200.     0x11, 0x01, 0x10, 0x00,

  201. };

  202. 

  203. static const uint8_t mpa_huffsyms_6[16] = {

  204.     0x33, 0x03, 0x23, 0x32, 0x30, 0x13, 0x31, 0x22, 0x02, 0x12, 0x21, 0x20,

  205.     0x01, 0x11, 0x10, 0x00,

  206. };

  207. 

  208. static const uint8_t mpa_huffsyms_7[36] = {

  209.     0x55, 0x45, 0x54, 0x53, 0x35, 0x44, 0x25, 0x52, 0x15, 0x51, 0x05, 0x34,

  210.     0x50, 0x43, 0x33, 0x24, 0x42, 0x14, 0x41, 0x40, 0x04, 0x23, 0x32, 0x03,

  211.     0x13, 0x31, 0x30, 0x22, 0x12, 0x21, 0x02, 0x20, 0x11, 0x01, 0x10, 0x00,

  212. };

  213. 

  214. static const uint8_t mpa_huffsyms_8[36] = {

  215.     0x55, 0x54, 0x45, 0x53, 0x35, 0x44, 0x25, 0x52, 0x05, 0x15, 0x51, 0x34,

  216.     0x43, 0x50, 0x33, 0x24, 0x42, 0x14, 0x41, 0x04, 0x40, 0x23, 0x32, 0x13,

  217.     0x31, 0x03, 0x30, 0x22, 0x02, 0x20, 0x12, 0x21, 0x11, 0x01, 0x10, 0x00,

  218. };

  219. 

  220. static const uint8_t mpa_huffsyms_9[36] = {

  221.     0x55, 0x45, 0x35, 0x53, 0x54, 0x05, 0x44, 0x25, 0x52, 0x15, 0x51, 0x34,

  222.     0x43, 0x50, 0x04, 0x24, 0x42, 0x33, 0x40, 0x14, 0x41, 0x23, 0x32, 0x13,

  223.     0x31, 0x03, 0x30, 0x22, 0x02, 0x12, 0x21, 0x20, 0x11, 0x01, 0x10, 0x00,

  224. };

  225. 

  226. static const uint8_t mpa_huffsyms_10[64] = {

  227.     0x77, 0x67, 0x76, 0x57, 0x75, 0x66, 0x47, 0x74, 0x56, 0x65, 0x37, 0x73,

  228.     0x46, 0x55, 0x54, 0x63, 0x27, 0x72, 0x64, 0x07, 0x70, 0x62, 0x45, 0x35,

  229.     0x06, 0x53, 0x44, 0x17, 0x71, 0x36, 0x26, 0x25, 0x52, 0x15, 0x51, 0x34,

  230.     0x43, 0x16, 0x61, 0x60, 0x05, 0x50, 0x24, 0x42, 0x33, 0x04, 0x14, 0x41,

  231.     0x40, 0x23, 0x32, 0x03, 0x13, 0x31, 0x30, 0x22, 0x12, 0x21, 0x02, 0x20,

  232.     0x11, 0x01, 0x10, 0x00,

  233. };

  234. 

  235. static const uint8_t mpa_huffsyms_11[64] = {

  236.     0x77, 0x67, 0x76, 0x75, 0x66, 0x47, 0x74, 0x57, 0x55, 0x56, 0x65, 0x37,

  237.     0x73, 0x46, 0x45, 0x54, 0x35, 0x53, 0x27, 0x72, 0x64, 0x07, 0x71, 0x17,

  238.     0x70, 0x36, 0x63, 0x60, 0x44, 0x25, 0x52, 0x05, 0x15, 0x62, 0x26, 0x06,

  239.     0x16, 0x61, 0x51, 0x34, 0x50, 0x43, 0x33, 0x24, 0x42, 0x14, 0x41, 0x04,

  240.     0x40, 0x23, 0x32, 0x13, 0x31, 0x03, 0x30, 0x22, 0x21, 0x12, 0x02, 0x20,

  241.     0x11, 0x01, 0x10, 0x00,

  242. };

  243. 

  244. static const uint8_t mpa_huffsyms_12[64] = {

  245.     0x77, 0x67, 0x76, 0x57, 0x75, 0x66, 0x47, 0x74, 0x65, 0x56, 0x37, 0x73,

  246.     0x55, 0x27, 0x72, 0x46, 0x64, 0x17, 0x71, 0x07, 0x70, 0x36, 0x63, 0x45,

  247.     0x54, 0x44, 0x06, 0x05, 0x26, 0x62, 0x61, 0x16, 0x60, 0x35, 0x53, 0x25,

  248.     0x52, 0x15, 0x51, 0x34, 0x43, 0x50, 0x04, 0x24, 0x42, 0x14, 0x33, 0x41,

  249.     0x23, 0x32, 0x40, 0x03, 0x30, 0x13, 0x31, 0x22, 0x12, 0x21, 0x02, 0x20,

  250.     0x00, 0x11, 0x01, 0x10,

  251. };

  252. 

  253. static const uint8_t mpa_huffsyms_13[256] = {

  254.     0xFE, 0xFC, 0xFD, 0xED, 0xFF, 0xEF, 0xDF, 0xEE, 0xCF, 0xDE, 0xBF, 0xFB,

  255.     0xCE, 0xDC, 0xAF, 0xE9, 0xEC, 0xDD, 0xFA, 0xCD, 0xBE, 0xEB, 0x9F, 0xF9,

  256.     0xEA, 0xBD, 0xDB, 0x8F, 0xF8, 0xCC, 0xAE, 0x9E, 0x8E, 0x7F, 0x7E, 0xF7,

  257.     0xDA, 0xAD, 0xBC, 0xCB, 0xF6, 0x6F, 0xE8, 0x5F, 0x9D, 0xD9, 0xF5, 0xE7,

  258.     0xAC, 0xBB, 0x4F, 0xF4, 0xCA, 0xE6, 0xF3, 0x3F, 0x8D, 0xD8, 0x2F, 0xF2,

  259.     0x6E, 0x9C, 0x0F, 0xC9, 0x5E, 0xAB, 0x7D, 0xD7, 0x4E, 0xC8, 0xD6, 0x3E,

  260.     0xB9, 0x9B, 0xAA, 0x1F, 0xF1, 0xF0, 0xBA, 0xE5, 0xE4, 0x8C, 0x6D, 0xE3,

  261.     0xE2, 0x2E, 0x0E, 0x1E, 0xE1, 0xE0, 0x5D, 0xD5, 0x7C, 0xC7, 0x4D, 0x8B,

  262.     0xB8, 0xD4, 0x9A, 0xA9, 0x6C, 0xC6, 0x3D, 0xD3, 0x7B, 0x2D, 0xD2, 0x1D,

  263.     0xB7, 0x5C, 0xC5, 0x99, 0x7A, 0xC3, 0xA7, 0x97, 0x4B, 0xD1, 0x0D, 0xD0,

  264.     0x8A, 0xA8, 0x4C, 0xC4, 0x6B, 0xB6, 0x3C, 0x2C, 0xC2, 0x5B, 0xB5, 0x89,

  265.     0x1C, 0xC1, 0x98, 0x0C, 0xC0, 0xB4, 0x6A, 0xA6, 0x79, 0x3B, 0xB3, 0x88,

  266.     0x5A, 0x2B, 0xA5, 0x69, 0xA4, 0x78, 0x87, 0x94, 0x77, 0x76, 0xB2, 0x1B,

  267.     0xB1, 0x0B, 0xB0, 0x96, 0x4A, 0x3A, 0xA3, 0x59, 0x95, 0x2A, 0xA2, 0x1A,

  268.     0xA1, 0x0A, 0x68, 0xA0, 0x86, 0x49, 0x93, 0x39, 0x58, 0x85, 0x67, 0x29,

  269.     0x92, 0x57, 0x75, 0x38, 0x83, 0x66, 0x47, 0x74, 0x56, 0x65, 0x73, 0x19,

  270.     0x91, 0x09, 0x90, 0x48, 0x84, 0x72, 0x46, 0x64, 0x28, 0x82, 0x18, 0x37,

  271.     0x27, 0x17, 0x71, 0x55, 0x07, 0x70, 0x36, 0x63, 0x45, 0x54, 0x26, 0x62,

  272.     0x35, 0x81, 0x08, 0x80, 0x16, 0x61, 0x06, 0x60, 0x53, 0x44, 0x25, 0x52,

  273.     0x05, 0x15, 0x51, 0x34, 0x43, 0x50, 0x24, 0x42, 0x33, 0x14, 0x41, 0x04,

  274.     0x40, 0x23, 0x32, 0x13, 0x31, 0x03, 0x30, 0x22, 0x12, 0x21, 0x02, 0x20,

  275.     0x11, 0x01, 0x10, 0x00,

  276. };

  277. 

  278. static const uint8_t mpa_huffsyms_15[256] = {

  279.     0xFF, 0xEF, 0xFE, 0xDF, 0xEE, 0xFD, 0xCF, 0xFC, 0xDE, 0xED, 0xBF, 0xFB,

  280.     0xCE, 0xEC, 0xDD, 0xAF, 0xFA, 0xBE, 0xEB, 0xCD, 0xDC, 0x9F, 0xF9, 0xEA,

  281.     0xBD, 0xDB, 0x8F, 0xF8, 0xCC, 0x9E, 0xE9, 0x7F, 0xF7, 0xAD, 0xDA, 0xBC,

  282.     0x6F, 0xAE, 0x0F, 0xCB, 0xF6, 0x8E, 0xE8, 0x5F, 0x9D, 0xF5, 0x7E, 0xE7,

  283.     0xAC, 0xCA, 0xBB, 0xD9, 0x8D, 0x4F, 0xF4, 0x3F, 0xF3, 0xD8, 0xE6, 0x2F,

  284.     0xF2, 0x6E, 0xF0, 0x1F, 0xF1, 0x9C, 0xC9, 0x5E, 0xAB, 0xBA, 0xE5, 0x7D,

  285.     0xD7, 0x4E, 0xE4, 0x8C, 0xC8, 0x3E, 0x6D, 0xD6, 0xE3, 0x9B, 0xB9, 0x2E,

  286.     0xAA, 0xE2, 0x1E, 0xE1, 0x0E, 0xE0, 0x5D, 0xD5, 0x7C, 0xC7, 0x4D, 0x8B,

  287.     0xD4, 0xB8, 0x9A, 0xA9, 0x6C, 0xC6, 0x3D, 0xD3, 0xD2, 0x2D, 0x0D, 0x1D,

  288.     0x7B, 0xB7, 0xD1, 0x5C, 0xD0, 0xC5, 0x8A, 0xA8, 0x4C, 0xC4, 0x6B, 0xB6,

  289.     0x99, 0x0C, 0x3C, 0xC3, 0x7A, 0xA7, 0xA6, 0xC0, 0x0B, 0xC2, 0x2C, 0x5B,

  290.     0xB5, 0x1C, 0x89, 0x98, 0xC1, 0x4B, 0xB4, 0x6A, 0x3B, 0x79, 0xB3, 0x97,

  291.     0x88, 0x2B, 0x5A, 0xB2, 0xA5, 0x1B, 0xB1, 0xB0, 0x69, 0x96, 0x4A, 0xA4,

  292.     0x78, 0x87, 0x3A, 0xA3, 0x59, 0x95, 0x2A, 0xA2, 0x1A, 0xA1, 0x0A, 0xA0,

  293.     0x68, 0x86, 0x49, 0x94, 0x39, 0x93, 0x77, 0x09, 0x58, 0x85, 0x29, 0x67,

  294.     0x76, 0x92, 0x91, 0x19, 0x90, 0x48, 0x84, 0x57, 0x75, 0x38, 0x83, 0x66,

  295.     0x47, 0x28, 0x82, 0x18, 0x81, 0x74, 0x08, 0x80, 0x56, 0x65, 0x37, 0x73,

  296.     0x46, 0x27, 0x72, 0x64, 0x17, 0x55, 0x71, 0x07, 0x70, 0x36, 0x63, 0x45,

  297.     0x54, 0x26, 0x62, 0x16, 0x06, 0x60, 0x35, 0x61, 0x53, 0x44, 0x25, 0x52,

  298.     0x15, 0x51, 0x05, 0x50, 0x34, 0x43, 0x24, 0x42, 0x33, 0x41, 0x14, 0x04,

  299.     0x23, 0x32, 0x40, 0x03, 0x13, 0x31, 0x30, 0x22, 0x12, 0x21, 0x02, 0x20,

  300.     0x11, 0x01, 0x10, 0x00,

  301. };

  302. 

  303. static const uint8_t mpa_huffsyms_16[256] = {

  304.     0xEF, 0xFE, 0xDF, 0xFD, 0xCF, 0xFC, 0xBF, 0xFB, 0xAF, 0xFA, 0x9F, 0xF9,

  305.     0xF8, 0x8F, 0x7F, 0xF7, 0x6F, 0xF6, 0xFF, 0x5F, 0xF5, 0x4F, 0xF4, 0xF3,

  306.     0xF0, 0x3F, 0xCE, 0xEC, 0xDD, 0xDE, 0xE9, 0xEA, 0xD9, 0xEE, 0xED, 0xEB,

  307.     0xBE, 0xCD, 0xDC, 0xDB, 0xAE, 0xCC, 0xAD, 0xDA, 0x7E, 0xAC, 0xCA, 0xC9,

  308.     0x7D, 0x5E, 0xBD, 0xF2, 0x2F, 0x0F, 0x1F, 0xF1, 0x9E, 0xBC, 0xCB, 0x8E,

  309.     0xE8, 0x9D, 0xE7, 0xBB, 0x8D, 0xD8, 0x6E, 0xE6, 0x9C, 0xAB, 0xBA, 0xE5,

  310.     0xD7, 0x4E, 0xE4, 0x8C, 0xC8, 0x3E, 0x6D, 0xD6, 0x9B, 0xB9, 0xAA, 0xE1,

  311.     0xD4, 0xB8, 0xA9, 0x7B, 0xB7, 0xD0, 0xE3, 0x0E, 0xE0, 0x5D, 0xD5, 0x7C,

  312.     0xC7, 0x4D, 0x8B, 0x9A, 0x6C, 0xC6, 0x3D, 0x5C, 0xC5, 0x0D, 0x8A, 0xA8,

  313.     0x99, 0x4C, 0xB6, 0x7A, 0x3C, 0x5B, 0x89, 0x1C, 0xC0, 0x98, 0x79, 0xE2,

  314.     0x2E, 0x1E, 0xD3, 0x2D, 0xD2, 0xD1, 0x3B, 0x97, 0x88, 0x1D, 0xC4, 0x6B,

  315.     0xC3, 0xA7, 0x2C, 0xC2, 0xB5, 0xC1, 0x0C, 0x4B, 0xB4, 0x6A, 0xA6, 0xB3,

  316.     0x5A, 0xA5, 0x2B, 0xB2, 0x1B, 0xB1, 0x0B, 0xB0, 0x69, 0x96, 0x4A, 0xA4,

  317.     0x78, 0x87, 0xA3, 0x3A, 0x59, 0x2A, 0x95, 0x68, 0xA1, 0x86, 0x77, 0x94,

  318.     0x49, 0x57, 0x67, 0xA2, 0x1A, 0x0A, 0xA0, 0x39, 0x93, 0x58, 0x85, 0x29,

  319.     0x92, 0x76, 0x09, 0x19, 0x91, 0x90, 0x48, 0x84, 0x75, 0x38, 0x83, 0x66,

  320.     0x28, 0x82, 0x47, 0x74, 0x18, 0x81, 0x80, 0x08, 0x56, 0x37, 0x73, 0x65,

  321.     0x46, 0x27, 0x72, 0x64, 0x55, 0x07, 0x17, 0x71, 0x70, 0x36, 0x63, 0x45,

  322.     0x54, 0x26, 0x62, 0x16, 0x61, 0x06, 0x60, 0x53, 0x35, 0x44, 0x25, 0x52,

  323.     0x51, 0x15, 0x05, 0x34, 0x43, 0x50, 0x24, 0x42, 0x33, 0x14, 0x41, 0x04,

  324.     0x40, 0x23, 0x32, 0x13, 0x31, 0x03, 0x30, 0x22, 0x12, 0x21, 0x02, 0x20,

  325.     0x11, 0x01, 0x10, 0x00,

  326. };

  327. 

  328. static const uint8_t mpa_huffsyms_24[256] = {

  329.     0xEF, 0xFE, 0xDF, 0xFD, 0xCF, 0xFC, 0xBF, 0xFB, 0xFA, 0xAF, 0x9F, 0xF9,

  330.     0xF8, 0x8F, 0x7F, 0xF7, 0x6F, 0xF6, 0x5F, 0xF5, 0x4F, 0xF4, 0x3F, 0xF3,

  331.     0x2F, 0xF2, 0xF1, 0x1F, 0xF0, 0x0F, 0xEE, 0xDE, 0xED, 0xCE, 0xEC, 0xDD,

  332.     0xBE, 0xEB, 0xCD, 0xDC, 0xAE, 0xEA, 0xBD, 0xDB, 0xCC, 0x9E, 0xE9, 0xAD,

  333.     0xDA, 0xBC, 0xCB, 0x8E, 0xE8, 0x9D, 0xD9, 0x7E, 0xE7, 0xAC, 0xFF, 0xCA,

  334.     0xBB, 0x8D, 0xD8, 0x0E, 0xE0, 0x0D, 0xE6, 0x6E, 0x9C, 0xC9, 0x5E, 0xBA,

  335.     0xE5, 0xAB, 0x7D, 0xD7, 0xE4, 0x8C, 0xC8, 0x4E, 0x2E, 0x3E, 0x6D, 0xD6,

  336.     0xE3, 0x9B, 0xB9, 0xAA, 0xE2, 0x1E, 0xE1, 0x5D, 0xD5, 0x7C, 0xC7, 0x4D,

  337.     0x8B, 0xB8, 0xD4, 0x9A, 0xA9, 0x6C, 0xC6, 0x3D, 0xD3, 0x2D, 0xD2, 0x1D,

  338.     0x7B, 0xB7, 0xD1, 0x5C, 0xC5, 0x8A, 0xA8, 0x99, 0x4C, 0xC4, 0x6B, 0xB6,

  339.     0xD0, 0x0C, 0x3C, 0xC3, 0x7A, 0xA7, 0x2C, 0xC2, 0x5B, 0xB5, 0x1C, 0x89,

  340.     0x98, 0xC1, 0x4B, 0xC0, 0x0B, 0x3B, 0xB0, 0x0A, 0x1A, 0xB4, 0x6A, 0xA6,

  341.     0x79, 0x97, 0xA0, 0x09, 0x90, 0xB3, 0x88, 0x2B, 0x5A, 0xB2, 0xA5, 0x1B,

  342.     0xB1, 0x69, 0x96, 0xA4, 0x4A, 0x78, 0x87, 0x3A, 0xA3, 0x59, 0x95, 0x2A,

  343.     0xA2, 0xA1, 0x68, 0x86, 0x77, 0x49, 0x94, 0x39, 0x93, 0x58, 0x85, 0x29,

  344.     0x67, 0x76, 0x92, 0x19, 0x91, 0x48, 0x84, 0x57, 0x75, 0x38, 0x83, 0x66,

  345.     0x28, 0x82, 0x18, 0x47, 0x74, 0x81, 0x08, 0x80, 0x56, 0x65, 0x17, 0x07,

  346.     0x70, 0x73, 0x37, 0x27, 0x72, 0x46, 0x64, 0x55, 0x71, 0x36, 0x63, 0x45,

  347.     0x54, 0x26, 0x62, 0x16, 0x61, 0x06, 0x60, 0x35, 0x53, 0x44, 0x25, 0x52,

  348.     0x15, 0x05, 0x50, 0x51, 0x34, 0x43, 0x24, 0x42, 0x33, 0x14, 0x41, 0x04,

  349.     0x40, 0x23, 0x32, 0x13, 0x31, 0x03, 0x30, 0x22, 0x12, 0x21, 0x02, 0x20,

  350.     0x11, 0x01, 0x10, 0x00,

  351. };

  352. 

  353. static const HuffTable mpa_huff_tables[] = {

  354.     {   4, mpa_huffbits_1,  mpa_huffsyms_1  },

  355.     {   9, mpa_huffbits_2,  mpa_huffsyms_2  },

  356.     {   9, mpa_huffbits_3,  mpa_huffsyms_3  },

  357.     {  16, mpa_huffbits_5,  mpa_huffsyms_5  },

  358.     {  16, mpa_huffbits_6,  mpa_huffsyms_6  },

  359.     {  36, mpa_huffbits_7,  mpa_huffsyms_7  },

  360.     {  36, mpa_huffbits_8,  mpa_huffsyms_8  },

  361.     {  36, mpa_huffbits_9,  mpa_huffsyms_9  },

  362.     {  64, mpa_huffbits_10, mpa_huffsyms_10 },

  363.     {  64, mpa_huffbits_11, mpa_huffsyms_11 },

  364.     {  64, mpa_huffbits_12, mpa_huffsyms_12 },

  365.     { 256, mpa_huffbits_13, mpa_huffsyms_13 },

  366.     { 256, mpa_huffbits_15, mpa_huffsyms_15 },

  367.     { 256, mpa_huffbits_16, mpa_huffsyms_16 },

  368.     { 256, mpa_huffbits_24, mpa_huffsyms_24 },

  369. };

  370. 

  371. static const uint8_t mpa_huff_data[32][2] = {

  372. { 0, 0 },

  373. { 1, 0 },

  374. { 2, 0 },

  375. { 3, 0 },

  376. { 0, 0 },

  377. { 4, 0 },

  378. { 5, 0 },

  379. { 6, 0 },

  380. { 7, 0 },

  381. { 8, 0 },

  382. { 9, 0 },

  383. { 10, 0 },

  384. { 11, 0 },

  385. { 12, 0 },

  386. { 0, 0 },

  387. { 13, 0 },

  388. { 14, 1 },

  389. { 14, 2 },

  390. { 14, 3 },

  391. { 14, 4 },

  392. { 14, 6 },

  393. { 14, 8 },

  394. { 14, 10 },

  395. { 14, 13 },

  396. { 15, 4 },

  397. { 15, 5 },

  398. { 15, 6 },

  399. { 15, 7 },

  400. { 15, 8 },

  401. { 15, 9 },

  402. { 15, 11 },

  403. { 15, 13 },

  404. };

  405. 

  406. 

  407. /* huffman tables for quadrules */

  408. static const uint8_t mpa_quad_codes[2][16] = {

  409.     {  1,  5,  4,  5,  6,  5,  4,  4, 7,  3,  6,  0,  7,  2,  3,  1, },

  410.     { 15, 14, 13, 12, 11, 10,  9,  8, 7,  6,  5,  4,  3,  2,  1,  0, },

  411. };

  412. 

  413. static const uint8_t mpa_quad_bits[2][16] = {

  414.     { 1, 4, 4, 5, 4, 6, 5, 6, 4, 5, 5, 6, 5, 6, 6, 6, },

  415.     { 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, },

  416. };

  417. 

  418. /* band size tables */

  419. static const uint8_t band_size_long[9][22] = {

  420. { 4, 4, 4, 4, 4, 4, 6, 6, 8, 8, 10,

  421.   12, 16, 20, 24, 28, 34, 42, 50, 54, 76, 158, }, /* 44100 */

  422. { 4, 4, 4, 4, 4, 4, 6, 6, 6, 8, 10,

  423.   12, 16, 18, 22, 28, 34, 40, 46, 54, 54, 192, }, /* 48000 */

  424. { 4, 4, 4, 4, 4, 4, 6, 6, 8, 10, 12,

  425.   16, 20, 24, 30, 38, 46, 56, 68, 84, 102, 26, }, /* 32000 */

  426. { 6, 6, 6, 6, 6, 6, 8, 10, 12, 14, 16,

  427.   20, 24, 28, 32, 38, 46, 52, 60, 68, 58, 54, }, /* 22050 */

  428. { 6, 6, 6, 6, 6, 6, 8, 10, 12, 14, 16,

  429.   18, 22, 26, 32, 38, 46, 52, 64, 70, 76, 36, }, /* 24000 */

  430. { 6, 6, 6, 6, 6, 6, 8, 10, 12, 14, 16,

  431.   20, 24, 28, 32, 38, 46, 52, 60, 68, 58, 54, }, /* 16000 */

  432. { 6, 6, 6, 6, 6, 6, 8, 10, 12, 14, 16,

  433.   20, 24, 28, 32, 38, 46, 52, 60, 68, 58, 54, }, /* 11025 */

  434. { 6, 6, 6, 6, 6, 6, 8, 10, 12, 14, 16,

  435.   20, 24, 28, 32, 38, 46, 52, 60, 68, 58, 54, }, /* 12000 */

  436. { 12, 12, 12, 12, 12, 12, 16, 20, 24, 28, 32,

  437.   40, 48, 56, 64, 76, 90, 2, 2, 2, 2, 2, }, /* 8000 */

  438. };

  439. 

  440. static const uint8_t band_size_short[9][13] = {

  441. { 4, 4, 4, 4, 6, 8, 10, 12, 14, 18, 22, 30, 56, }, /* 44100 */

  442. { 4, 4, 4, 4, 6, 6, 10, 12, 14, 16, 20, 26, 66, }, /* 48000 */

  443. { 4, 4, 4, 4, 6, 8, 12, 16, 20, 26, 34, 42, 12, }, /* 32000 */

  444. { 4, 4, 4, 6, 6, 8, 10, 14, 18, 26, 32, 42, 18, }, /* 22050 */

  445. { 4, 4, 4, 6, 8, 10, 12, 14, 18, 24, 32, 44, 12, }, /* 24000 */

  446. { 4, 4, 4, 6, 8, 10, 12, 14, 18, 24, 30, 40, 18, }, /* 16000 */

  447. { 4, 4, 4, 6, 8, 10, 12, 14, 18, 24, 30, 40, 18, }, /* 11025 */

  448. { 4, 4, 4, 6, 8, 10, 12, 14, 18, 24, 30, 40, 18, }, /* 12000 */

  449. { 8, 8, 8, 12, 16, 20, 24, 28, 36, 2, 2, 2, 26, }, /* 8000 */

  450. };

  451. 

  452. static const uint8_t mpa_pretab[2][22] = {

  453.     { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },

  454.     { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 3, 3, 3, 2, 0 },

  455. };

  456. 

  457. /* table for alias reduction (XXX: store it as integer !) */

  458. static const float ci_table[8] = {

  459.     -0.6, -0.535, -0.33, -0.185, -0.095, -0.041, -0.0142, -0.0037,

  460. };

  461. 

  462. #endif /* AVCODEC_MPEGAUDIODECTAB_H */