mpegaudiodectab.h 23 KB

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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. * @file
  23. * mpeg audio layer decoder tables.
  24. */
  25. #ifndef AVCODEC_MPEGAUDIODECTAB_H
  26. #define AVCODEC_MPEGAUDIODECTAB_H
  27. #include <stddef.h>
  28. #include <stdint.h>
  29. #include "mpegaudio.h"
  30. /*******************************************************/
  31. /* layer 3 tables */
  32. /* layer 3 huffman tables */
  33. typedef struct HuffTable {
  34. int xsize;
  35. const uint8_t *bits;
  36. const uint16_t *codes;
  37. } HuffTable;
  38. /* layer3 scale factor size */
  39. static const uint8_t slen_table[2][16] = {
  40. { 0, 0, 0, 0, 3, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4 },
  41. { 0, 1, 2, 3, 0, 1, 2, 3, 1, 2, 3, 1, 2, 3, 2, 3 },
  42. };
  43. /* number of lsf scale factors for a given size */
  44. static const uint8_t lsf_nsf_table[6][3][4] = {
  45. { { 6, 5, 5, 5 }, { 9, 9, 9, 9 }, { 6, 9, 9, 9 } },
  46. { { 6, 5, 7, 3 }, { 9, 9, 12, 6 }, { 6, 9, 12, 6 } },
  47. { { 11, 10, 0, 0 }, { 18, 18, 0, 0 }, { 15, 18, 0, 0 } },
  48. { { 7, 7, 7, 0 }, { 12, 12, 12, 0 }, { 6, 15, 12, 0 } },
  49. { { 6, 6, 6, 3 }, { 12, 9, 9, 6 }, { 6, 12, 9, 6 } },
  50. { { 8, 8, 5, 0 }, { 15, 12, 9, 0 }, { 6, 18, 9, 0 } },
  51. };
  52. /* mpegaudio layer 3 huffman tables */
  53. static const uint16_t mpa_huffcodes_1[4] = {
  54. 0x0001, 0x0001, 0x0001, 0x0000,
  55. };
  56. static const uint8_t mpa_huffbits_1[4] = {
  57. 1, 3, 2, 3,
  58. };
  59. static const uint16_t mpa_huffcodes_2[9] = {
  60. 0x0001, 0x0002, 0x0001, 0x0003, 0x0001, 0x0001, 0x0003, 0x0002,
  61. 0x0000,
  62. };
  63. static const uint8_t mpa_huffbits_2[9] = {
  64. 1, 3, 6, 3, 3, 5, 5, 5,
  65. 6,
  66. };
  67. static const uint16_t mpa_huffcodes_3[9] = {
  68. 0x0003, 0x0002, 0x0001, 0x0001, 0x0001, 0x0001, 0x0003, 0x0002,
  69. 0x0000,
  70. };
  71. static const uint8_t mpa_huffbits_3[9] = {
  72. 2, 2, 6, 3, 2, 5, 5, 5,
  73. 6,
  74. };
  75. static const uint16_t mpa_huffcodes_5[16] = {
  76. 0x0001, 0x0002, 0x0006, 0x0005, 0x0003, 0x0001, 0x0004, 0x0004,
  77. 0x0007, 0x0005, 0x0007, 0x0001, 0x0006, 0x0001, 0x0001, 0x0000,
  78. };
  79. static const uint8_t mpa_huffbits_5[16] = {
  80. 1, 3, 6, 7, 3, 3, 6, 7,
  81. 6, 6, 7, 8, 7, 6, 7, 8,
  82. };
  83. static const uint16_t mpa_huffcodes_6[16] = {
  84. 0x0007, 0x0003, 0x0005, 0x0001, 0x0006, 0x0002, 0x0003, 0x0002,
  85. 0x0005, 0x0004, 0x0004, 0x0001, 0x0003, 0x0003, 0x0002, 0x0000,
  86. };
  87. static const uint8_t mpa_huffbits_6[16] = {
  88. 3, 3, 5, 7, 3, 2, 4, 5,
  89. 4, 4, 5, 6, 6, 5, 6, 7,
  90. };
  91. static const uint16_t mpa_huffcodes_7[36] = {
  92. 0x0001, 0x0002, 0x000a, 0x0013, 0x0010, 0x000a, 0x0003, 0x0003,
  93. 0x0007, 0x000a, 0x0005, 0x0003, 0x000b, 0x0004, 0x000d, 0x0011,
  94. 0x0008, 0x0004, 0x000c, 0x000b, 0x0012, 0x000f, 0x000b, 0x0002,
  95. 0x0007, 0x0006, 0x0009, 0x000e, 0x0003, 0x0001, 0x0006, 0x0004,
  96. 0x0005, 0x0003, 0x0002, 0x0000,
  97. };
  98. static const uint8_t mpa_huffbits_7[36] = {
  99. 1, 3, 6, 8, 8, 9, 3, 4,
  100. 6, 7, 7, 8, 6, 5, 7, 8,
  101. 8, 9, 7, 7, 8, 9, 9, 9,
  102. 7, 7, 8, 9, 9, 10, 8, 8,
  103. 9, 10, 10, 10,
  104. };
  105. static const uint16_t mpa_huffcodes_8[36] = {
  106. 0x0003, 0x0004, 0x0006, 0x0012, 0x000c, 0x0005, 0x0005, 0x0001,
  107. 0x0002, 0x0010, 0x0009, 0x0003, 0x0007, 0x0003, 0x0005, 0x000e,
  108. 0x0007, 0x0003, 0x0013, 0x0011, 0x000f, 0x000d, 0x000a, 0x0004,
  109. 0x000d, 0x0005, 0x0008, 0x000b, 0x0005, 0x0001, 0x000c, 0x0004,
  110. 0x0004, 0x0001, 0x0001, 0x0000,
  111. };
  112. static const uint8_t mpa_huffbits_8[36] = {
  113. 2, 3, 6, 8, 8, 9, 3, 2,
  114. 4, 8, 8, 8, 6, 4, 6, 8,
  115. 8, 9, 8, 8, 8, 9, 9, 10,
  116. 8, 7, 8, 9, 10, 10, 9, 8,
  117. 9, 9, 11, 11,
  118. };
  119. static const uint16_t mpa_huffcodes_9[36] = {
  120. 0x0007, 0x0005, 0x0009, 0x000e, 0x000f, 0x0007, 0x0006, 0x0004,
  121. 0x0005, 0x0005, 0x0006, 0x0007, 0x0007, 0x0006, 0x0008, 0x0008,
  122. 0x0008, 0x0005, 0x000f, 0x0006, 0x0009, 0x000a, 0x0005, 0x0001,
  123. 0x000b, 0x0007, 0x0009, 0x0006, 0x0004, 0x0001, 0x000e, 0x0004,
  124. 0x0006, 0x0002, 0x0006, 0x0000,
  125. };
  126. static const uint8_t mpa_huffbits_9[36] = {
  127. 3, 3, 5, 6, 8, 9, 3, 3,
  128. 4, 5, 6, 8, 4, 4, 5, 6,
  129. 7, 8, 6, 5, 6, 7, 7, 8,
  130. 7, 6, 7, 7, 8, 9, 8, 7,
  131. 8, 8, 9, 9,
  132. };
  133. static const uint16_t mpa_huffcodes_10[64] = {
  134. 0x0001, 0x0002, 0x000a, 0x0017, 0x0023, 0x001e, 0x000c, 0x0011,
  135. 0x0003, 0x0003, 0x0008, 0x000c, 0x0012, 0x0015, 0x000c, 0x0007,
  136. 0x000b, 0x0009, 0x000f, 0x0015, 0x0020, 0x0028, 0x0013, 0x0006,
  137. 0x000e, 0x000d, 0x0016, 0x0022, 0x002e, 0x0017, 0x0012, 0x0007,
  138. 0x0014, 0x0013, 0x0021, 0x002f, 0x001b, 0x0016, 0x0009, 0x0003,
  139. 0x001f, 0x0016, 0x0029, 0x001a, 0x0015, 0x0014, 0x0005, 0x0003,
  140. 0x000e, 0x000d, 0x000a, 0x000b, 0x0010, 0x0006, 0x0005, 0x0001,
  141. 0x0009, 0x0008, 0x0007, 0x0008, 0x0004, 0x0004, 0x0002, 0x0000,
  142. };
  143. static const uint8_t mpa_huffbits_10[64] = {
  144. 1, 3, 6, 8, 9, 9, 9, 10,
  145. 3, 4, 6, 7, 8, 9, 8, 8,
  146. 6, 6, 7, 8, 9, 10, 9, 9,
  147. 7, 7, 8, 9, 10, 10, 9, 10,
  148. 8, 8, 9, 10, 10, 10, 10, 10,
  149. 9, 9, 10, 10, 11, 11, 10, 11,
  150. 8, 8, 9, 10, 10, 10, 11, 11,
  151. 9, 8, 9, 10, 10, 11, 11, 11,
  152. };
  153. static const uint16_t mpa_huffcodes_11[64] = {
  154. 0x0003, 0x0004, 0x000a, 0x0018, 0x0022, 0x0021, 0x0015, 0x000f,
  155. 0x0005, 0x0003, 0x0004, 0x000a, 0x0020, 0x0011, 0x000b, 0x000a,
  156. 0x000b, 0x0007, 0x000d, 0x0012, 0x001e, 0x001f, 0x0014, 0x0005,
  157. 0x0019, 0x000b, 0x0013, 0x003b, 0x001b, 0x0012, 0x000c, 0x0005,
  158. 0x0023, 0x0021, 0x001f, 0x003a, 0x001e, 0x0010, 0x0007, 0x0005,
  159. 0x001c, 0x001a, 0x0020, 0x0013, 0x0011, 0x000f, 0x0008, 0x000e,
  160. 0x000e, 0x000c, 0x0009, 0x000d, 0x000e, 0x0009, 0x0004, 0x0001,
  161. 0x000b, 0x0004, 0x0006, 0x0006, 0x0006, 0x0003, 0x0002, 0x0000,
  162. };
  163. static const uint8_t mpa_huffbits_11[64] = {
  164. 2, 3, 5, 7, 8, 9, 8, 9,
  165. 3, 3, 4, 6, 8, 8, 7, 8,
  166. 5, 5, 6, 7, 8, 9, 8, 8,
  167. 7, 6, 7, 9, 8, 10, 8, 9,
  168. 8, 8, 8, 9, 9, 10, 9, 10,
  169. 8, 8, 9, 10, 10, 11, 10, 11,
  170. 8, 7, 7, 8, 9, 10, 10, 10,
  171. 8, 7, 8, 9, 10, 10, 10, 10,
  172. };
  173. static const uint16_t mpa_huffcodes_12[64] = {
  174. 0x0009, 0x0006, 0x0010, 0x0021, 0x0029, 0x0027, 0x0026, 0x001a,
  175. 0x0007, 0x0005, 0x0006, 0x0009, 0x0017, 0x0010, 0x001a, 0x000b,
  176. 0x0011, 0x0007, 0x000b, 0x000e, 0x0015, 0x001e, 0x000a, 0x0007,
  177. 0x0011, 0x000a, 0x000f, 0x000c, 0x0012, 0x001c, 0x000e, 0x0005,
  178. 0x0020, 0x000d, 0x0016, 0x0013, 0x0012, 0x0010, 0x0009, 0x0005,
  179. 0x0028, 0x0011, 0x001f, 0x001d, 0x0011, 0x000d, 0x0004, 0x0002,
  180. 0x001b, 0x000c, 0x000b, 0x000f, 0x000a, 0x0007, 0x0004, 0x0001,
  181. 0x001b, 0x000c, 0x0008, 0x000c, 0x0006, 0x0003, 0x0001, 0x0000,
  182. };
  183. static const uint8_t mpa_huffbits_12[64] = {
  184. 4, 3, 5, 7, 8, 9, 9, 9,
  185. 3, 3, 4, 5, 7, 7, 8, 8,
  186. 5, 4, 5, 6, 7, 8, 7, 8,
  187. 6, 5, 6, 6, 7, 8, 8, 8,
  188. 7, 6, 7, 7, 8, 8, 8, 9,
  189. 8, 7, 8, 8, 8, 9, 8, 9,
  190. 8, 7, 7, 8, 8, 9, 9, 10,
  191. 9, 8, 8, 9, 9, 9, 9, 10,
  192. };
  193. static const uint16_t mpa_huffcodes_13[256] = {
  194. 0x0001, 0x0005, 0x000e, 0x0015, 0x0022, 0x0033, 0x002e, 0x0047,
  195. 0x002a, 0x0034, 0x0044, 0x0034, 0x0043, 0x002c, 0x002b, 0x0013,
  196. 0x0003, 0x0004, 0x000c, 0x0013, 0x001f, 0x001a, 0x002c, 0x0021,
  197. 0x001f, 0x0018, 0x0020, 0x0018, 0x001f, 0x0023, 0x0016, 0x000e,
  198. 0x000f, 0x000d, 0x0017, 0x0024, 0x003b, 0x0031, 0x004d, 0x0041,
  199. 0x001d, 0x0028, 0x001e, 0x0028, 0x001b, 0x0021, 0x002a, 0x0010,
  200. 0x0016, 0x0014, 0x0025, 0x003d, 0x0038, 0x004f, 0x0049, 0x0040,
  201. 0x002b, 0x004c, 0x0038, 0x0025, 0x001a, 0x001f, 0x0019, 0x000e,
  202. 0x0023, 0x0010, 0x003c, 0x0039, 0x0061, 0x004b, 0x0072, 0x005b,
  203. 0x0036, 0x0049, 0x0037, 0x0029, 0x0030, 0x0035, 0x0017, 0x0018,
  204. 0x003a, 0x001b, 0x0032, 0x0060, 0x004c, 0x0046, 0x005d, 0x0054,
  205. 0x004d, 0x003a, 0x004f, 0x001d, 0x004a, 0x0031, 0x0029, 0x0011,
  206. 0x002f, 0x002d, 0x004e, 0x004a, 0x0073, 0x005e, 0x005a, 0x004f,
  207. 0x0045, 0x0053, 0x0047, 0x0032, 0x003b, 0x0026, 0x0024, 0x000f,
  208. 0x0048, 0x0022, 0x0038, 0x005f, 0x005c, 0x0055, 0x005b, 0x005a,
  209. 0x0056, 0x0049, 0x004d, 0x0041, 0x0033, 0x002c, 0x002b, 0x002a,
  210. 0x002b, 0x0014, 0x001e, 0x002c, 0x0037, 0x004e, 0x0048, 0x0057,
  211. 0x004e, 0x003d, 0x002e, 0x0036, 0x0025, 0x001e, 0x0014, 0x0010,
  212. 0x0035, 0x0019, 0x0029, 0x0025, 0x002c, 0x003b, 0x0036, 0x0051,
  213. 0x0042, 0x004c, 0x0039, 0x0036, 0x0025, 0x0012, 0x0027, 0x000b,
  214. 0x0023, 0x0021, 0x001f, 0x0039, 0x002a, 0x0052, 0x0048, 0x0050,
  215. 0x002f, 0x003a, 0x0037, 0x0015, 0x0016, 0x001a, 0x0026, 0x0016,
  216. 0x0035, 0x0019, 0x0017, 0x0026, 0x0046, 0x003c, 0x0033, 0x0024,
  217. 0x0037, 0x001a, 0x0022, 0x0017, 0x001b, 0x000e, 0x0009, 0x0007,
  218. 0x0022, 0x0020, 0x001c, 0x0027, 0x0031, 0x004b, 0x001e, 0x0034,
  219. 0x0030, 0x0028, 0x0034, 0x001c, 0x0012, 0x0011, 0x0009, 0x0005,
  220. 0x002d, 0x0015, 0x0022, 0x0040, 0x0038, 0x0032, 0x0031, 0x002d,
  221. 0x001f, 0x0013, 0x000c, 0x000f, 0x000a, 0x0007, 0x0006, 0x0003,
  222. 0x0030, 0x0017, 0x0014, 0x0027, 0x0024, 0x0023, 0x0035, 0x0015,
  223. 0x0010, 0x0017, 0x000d, 0x000a, 0x0006, 0x0001, 0x0004, 0x0002,
  224. 0x0010, 0x000f, 0x0011, 0x001b, 0x0019, 0x0014, 0x001d, 0x000b,
  225. 0x0011, 0x000c, 0x0010, 0x0008, 0x0001, 0x0001, 0x0000, 0x0001,
  226. };
  227. static const uint8_t mpa_huffbits_13[256] = {
  228. 1, 4, 6, 7, 8, 9, 9, 10,
  229. 9, 10, 11, 11, 12, 12, 13, 13,
  230. 3, 4, 6, 7, 8, 8, 9, 9,
  231. 9, 9, 10, 10, 11, 12, 12, 12,
  232. 6, 6, 7, 8, 9, 9, 10, 10,
  233. 9, 10, 10, 11, 11, 12, 13, 13,
  234. 7, 7, 8, 9, 9, 10, 10, 10,
  235. 10, 11, 11, 11, 11, 12, 13, 13,
  236. 8, 7, 9, 9, 10, 10, 11, 11,
  237. 10, 11, 11, 12, 12, 13, 13, 14,
  238. 9, 8, 9, 10, 10, 10, 11, 11,
  239. 11, 11, 12, 11, 13, 13, 14, 14,
  240. 9, 9, 10, 10, 11, 11, 11, 11,
  241. 11, 12, 12, 12, 13, 13, 14, 14,
  242. 10, 9, 10, 11, 11, 11, 12, 12,
  243. 12, 12, 13, 13, 13, 14, 16, 16,
  244. 9, 8, 9, 10, 10, 11, 11, 12,
  245. 12, 12, 12, 13, 13, 14, 15, 15,
  246. 10, 9, 10, 10, 11, 11, 11, 13,
  247. 12, 13, 13, 14, 14, 14, 16, 15,
  248. 10, 10, 10, 11, 11, 12, 12, 13,
  249. 12, 13, 14, 13, 14, 15, 16, 17,
  250. 11, 10, 10, 11, 12, 12, 12, 12,
  251. 13, 13, 13, 14, 15, 15, 15, 16,
  252. 11, 11, 11, 12, 12, 13, 12, 13,
  253. 14, 14, 15, 15, 15, 16, 16, 16,
  254. 12, 11, 12, 13, 13, 13, 14, 14,
  255. 14, 14, 14, 15, 16, 15, 16, 16,
  256. 13, 12, 12, 13, 13, 13, 15, 14,
  257. 14, 17, 15, 15, 15, 17, 16, 16,
  258. 12, 12, 13, 14, 14, 14, 15, 14,
  259. 15, 15, 16, 16, 19, 18, 19, 16,
  260. };
  261. static const uint16_t mpa_huffcodes_15[256] = {
  262. 0x0007, 0x000c, 0x0012, 0x0035, 0x002f, 0x004c, 0x007c, 0x006c,
  263. 0x0059, 0x007b, 0x006c, 0x0077, 0x006b, 0x0051, 0x007a, 0x003f,
  264. 0x000d, 0x0005, 0x0010, 0x001b, 0x002e, 0x0024, 0x003d, 0x0033,
  265. 0x002a, 0x0046, 0x0034, 0x0053, 0x0041, 0x0029, 0x003b, 0x0024,
  266. 0x0013, 0x0011, 0x000f, 0x0018, 0x0029, 0x0022, 0x003b, 0x0030,
  267. 0x0028, 0x0040, 0x0032, 0x004e, 0x003e, 0x0050, 0x0038, 0x0021,
  268. 0x001d, 0x001c, 0x0019, 0x002b, 0x0027, 0x003f, 0x0037, 0x005d,
  269. 0x004c, 0x003b, 0x005d, 0x0048, 0x0036, 0x004b, 0x0032, 0x001d,
  270. 0x0034, 0x0016, 0x002a, 0x0028, 0x0043, 0x0039, 0x005f, 0x004f,
  271. 0x0048, 0x0039, 0x0059, 0x0045, 0x0031, 0x0042, 0x002e, 0x001b,
  272. 0x004d, 0x0025, 0x0023, 0x0042, 0x003a, 0x0034, 0x005b, 0x004a,
  273. 0x003e, 0x0030, 0x004f, 0x003f, 0x005a, 0x003e, 0x0028, 0x0026,
  274. 0x007d, 0x0020, 0x003c, 0x0038, 0x0032, 0x005c, 0x004e, 0x0041,
  275. 0x0037, 0x0057, 0x0047, 0x0033, 0x0049, 0x0033, 0x0046, 0x001e,
  276. 0x006d, 0x0035, 0x0031, 0x005e, 0x0058, 0x004b, 0x0042, 0x007a,
  277. 0x005b, 0x0049, 0x0038, 0x002a, 0x0040, 0x002c, 0x0015, 0x0019,
  278. 0x005a, 0x002b, 0x0029, 0x004d, 0x0049, 0x003f, 0x0038, 0x005c,
  279. 0x004d, 0x0042, 0x002f, 0x0043, 0x0030, 0x0035, 0x0024, 0x0014,
  280. 0x0047, 0x0022, 0x0043, 0x003c, 0x003a, 0x0031, 0x0058, 0x004c,
  281. 0x0043, 0x006a, 0x0047, 0x0036, 0x0026, 0x0027, 0x0017, 0x000f,
  282. 0x006d, 0x0035, 0x0033, 0x002f, 0x005a, 0x0052, 0x003a, 0x0039,
  283. 0x0030, 0x0048, 0x0039, 0x0029, 0x0017, 0x001b, 0x003e, 0x0009,
  284. 0x0056, 0x002a, 0x0028, 0x0025, 0x0046, 0x0040, 0x0034, 0x002b,
  285. 0x0046, 0x0037, 0x002a, 0x0019, 0x001d, 0x0012, 0x000b, 0x000b,
  286. 0x0076, 0x0044, 0x001e, 0x0037, 0x0032, 0x002e, 0x004a, 0x0041,
  287. 0x0031, 0x0027, 0x0018, 0x0010, 0x0016, 0x000d, 0x000e, 0x0007,
  288. 0x005b, 0x002c, 0x0027, 0x0026, 0x0022, 0x003f, 0x0034, 0x002d,
  289. 0x001f, 0x0034, 0x001c, 0x0013, 0x000e, 0x0008, 0x0009, 0x0003,
  290. 0x007b, 0x003c, 0x003a, 0x0035, 0x002f, 0x002b, 0x0020, 0x0016,
  291. 0x0025, 0x0018, 0x0011, 0x000c, 0x000f, 0x000a, 0x0002, 0x0001,
  292. 0x0047, 0x0025, 0x0022, 0x001e, 0x001c, 0x0014, 0x0011, 0x001a,
  293. 0x0015, 0x0010, 0x000a, 0x0006, 0x0008, 0x0006, 0x0002, 0x0000,
  294. };
  295. static const uint8_t mpa_huffbits_15[256] = {
  296. 3, 4, 5, 7, 7, 8, 9, 9,
  297. 9, 10, 10, 11, 11, 11, 12, 13,
  298. 4, 3, 5, 6, 7, 7, 8, 8,
  299. 8, 9, 9, 10, 10, 10, 11, 11,
  300. 5, 5, 5, 6, 7, 7, 8, 8,
  301. 8, 9, 9, 10, 10, 11, 11, 11,
  302. 6, 6, 6, 7, 7, 8, 8, 9,
  303. 9, 9, 10, 10, 10, 11, 11, 11,
  304. 7, 6, 7, 7, 8, 8, 9, 9,
  305. 9, 9, 10, 10, 10, 11, 11, 11,
  306. 8, 7, 7, 8, 8, 8, 9, 9,
  307. 9, 9, 10, 10, 11, 11, 11, 12,
  308. 9, 7, 8, 8, 8, 9, 9, 9,
  309. 9, 10, 10, 10, 11, 11, 12, 12,
  310. 9, 8, 8, 9, 9, 9, 9, 10,
  311. 10, 10, 10, 10, 11, 11, 11, 12,
  312. 9, 8, 8, 9, 9, 9, 9, 10,
  313. 10, 10, 10, 11, 11, 12, 12, 12,
  314. 9, 8, 9, 9, 9, 9, 10, 10,
  315. 10, 11, 11, 11, 11, 12, 12, 12,
  316. 10, 9, 9, 9, 10, 10, 10, 10,
  317. 10, 11, 11, 11, 11, 12, 13, 12,
  318. 10, 9, 9, 9, 10, 10, 10, 10,
  319. 11, 11, 11, 11, 12, 12, 12, 13,
  320. 11, 10, 9, 10, 10, 10, 11, 11,
  321. 11, 11, 11, 11, 12, 12, 13, 13,
  322. 11, 10, 10, 10, 10, 11, 11, 11,
  323. 11, 12, 12, 12, 12, 12, 13, 13,
  324. 12, 11, 11, 11, 11, 11, 11, 11,
  325. 12, 12, 12, 12, 13, 13, 12, 13,
  326. 12, 11, 11, 11, 11, 11, 11, 12,
  327. 12, 12, 12, 12, 13, 13, 13, 13,
  328. };
  329. static const uint16_t mpa_huffcodes_16[256] = {
  330. 0x0001, 0x0005, 0x000e, 0x002c, 0x004a, 0x003f, 0x006e, 0x005d,
  331. 0x00ac, 0x0095, 0x008a, 0x00f2, 0x00e1, 0x00c3, 0x0178, 0x0011,
  332. 0x0003, 0x0004, 0x000c, 0x0014, 0x0023, 0x003e, 0x0035, 0x002f,
  333. 0x0053, 0x004b, 0x0044, 0x0077, 0x00c9, 0x006b, 0x00cf, 0x0009,
  334. 0x000f, 0x000d, 0x0017, 0x0026, 0x0043, 0x003a, 0x0067, 0x005a,
  335. 0x00a1, 0x0048, 0x007f, 0x0075, 0x006e, 0x00d1, 0x00ce, 0x0010,
  336. 0x002d, 0x0015, 0x0027, 0x0045, 0x0040, 0x0072, 0x0063, 0x0057,
  337. 0x009e, 0x008c, 0x00fc, 0x00d4, 0x00c7, 0x0183, 0x016d, 0x001a,
  338. 0x004b, 0x0024, 0x0044, 0x0041, 0x0073, 0x0065, 0x00b3, 0x00a4,
  339. 0x009b, 0x0108, 0x00f6, 0x00e2, 0x018b, 0x017e, 0x016a, 0x0009,
  340. 0x0042, 0x001e, 0x003b, 0x0038, 0x0066, 0x00b9, 0x00ad, 0x0109,
  341. 0x008e, 0x00fd, 0x00e8, 0x0190, 0x0184, 0x017a, 0x01bd, 0x0010,
  342. 0x006f, 0x0036, 0x0034, 0x0064, 0x00b8, 0x00b2, 0x00a0, 0x0085,
  343. 0x0101, 0x00f4, 0x00e4, 0x00d9, 0x0181, 0x016e, 0x02cb, 0x000a,
  344. 0x0062, 0x0030, 0x005b, 0x0058, 0x00a5, 0x009d, 0x0094, 0x0105,
  345. 0x00f8, 0x0197, 0x018d, 0x0174, 0x017c, 0x0379, 0x0374, 0x0008,
  346. 0x0055, 0x0054, 0x0051, 0x009f, 0x009c, 0x008f, 0x0104, 0x00f9,
  347. 0x01ab, 0x0191, 0x0188, 0x017f, 0x02d7, 0x02c9, 0x02c4, 0x0007,
  348. 0x009a, 0x004c, 0x0049, 0x008d, 0x0083, 0x0100, 0x00f5, 0x01aa,
  349. 0x0196, 0x018a, 0x0180, 0x02df, 0x0167, 0x02c6, 0x0160, 0x000b,
  350. 0x008b, 0x0081, 0x0043, 0x007d, 0x00f7, 0x00e9, 0x00e5, 0x00db,
  351. 0x0189, 0x02e7, 0x02e1, 0x02d0, 0x0375, 0x0372, 0x01b7, 0x0004,
  352. 0x00f3, 0x0078, 0x0076, 0x0073, 0x00e3, 0x00df, 0x018c, 0x02ea,
  353. 0x02e6, 0x02e0, 0x02d1, 0x02c8, 0x02c2, 0x00df, 0x01b4, 0x0006,
  354. 0x00ca, 0x00e0, 0x00de, 0x00da, 0x00d8, 0x0185, 0x0182, 0x017d,
  355. 0x016c, 0x0378, 0x01bb, 0x02c3, 0x01b8, 0x01b5, 0x06c0, 0x0004,
  356. 0x02eb, 0x00d3, 0x00d2, 0x00d0, 0x0172, 0x017b, 0x02de, 0x02d3,
  357. 0x02ca, 0x06c7, 0x0373, 0x036d, 0x036c, 0x0d83, 0x0361, 0x0002,
  358. 0x0179, 0x0171, 0x0066, 0x00bb, 0x02d6, 0x02d2, 0x0166, 0x02c7,
  359. 0x02c5, 0x0362, 0x06c6, 0x0367, 0x0d82, 0x0366, 0x01b2, 0x0000,
  360. 0x000c, 0x000a, 0x0007, 0x000b, 0x000a, 0x0011, 0x000b, 0x0009,
  361. 0x000d, 0x000c, 0x000a, 0x0007, 0x0005, 0x0003, 0x0001, 0x0003,
  362. };
  363. static const uint8_t mpa_huffbits_16[256] = {
  364. 1, 4, 6, 8, 9, 9, 10, 10,
  365. 11, 11, 11, 12, 12, 12, 13, 9,
  366. 3, 4, 6, 7, 8, 9, 9, 9,
  367. 10, 10, 10, 11, 12, 11, 12, 8,
  368. 6, 6, 7, 8, 9, 9, 10, 10,
  369. 11, 10, 11, 11, 11, 12, 12, 9,
  370. 8, 7, 8, 9, 9, 10, 10, 10,
  371. 11, 11, 12, 12, 12, 13, 13, 10,
  372. 9, 8, 9, 9, 10, 10, 11, 11,
  373. 11, 12, 12, 12, 13, 13, 13, 9,
  374. 9, 8, 9, 9, 10, 11, 11, 12,
  375. 11, 12, 12, 13, 13, 13, 14, 10,
  376. 10, 9, 9, 10, 11, 11, 11, 11,
  377. 12, 12, 12, 12, 13, 13, 14, 10,
  378. 10, 9, 10, 10, 11, 11, 11, 12,
  379. 12, 13, 13, 13, 13, 15, 15, 10,
  380. 10, 10, 10, 11, 11, 11, 12, 12,
  381. 13, 13, 13, 13, 14, 14, 14, 10,
  382. 11, 10, 10, 11, 11, 12, 12, 13,
  383. 13, 13, 13, 14, 13, 14, 13, 11,
  384. 11, 11, 10, 11, 12, 12, 12, 12,
  385. 13, 14, 14, 14, 15, 15, 14, 10,
  386. 12, 11, 11, 11, 12, 12, 13, 14,
  387. 14, 14, 14, 14, 14, 13, 14, 11,
  388. 12, 12, 12, 12, 12, 13, 13, 13,
  389. 13, 15, 14, 14, 14, 14, 16, 11,
  390. 14, 12, 12, 12, 13, 13, 14, 14,
  391. 14, 16, 15, 15, 15, 17, 15, 11,
  392. 13, 13, 11, 12, 14, 14, 13, 14,
  393. 14, 15, 16, 15, 17, 15, 14, 11,
  394. 9, 8, 8, 9, 9, 10, 10, 10,
  395. 11, 11, 11, 11, 11, 11, 11, 8,
  396. };
  397. static const uint16_t mpa_huffcodes_24[256] = {
  398. 0x000f, 0x000d, 0x002e, 0x0050, 0x0092, 0x0106, 0x00f8, 0x01b2,
  399. 0x01aa, 0x029d, 0x028d, 0x0289, 0x026d, 0x0205, 0x0408, 0x0058,
  400. 0x000e, 0x000c, 0x0015, 0x0026, 0x0047, 0x0082, 0x007a, 0x00d8,
  401. 0x00d1, 0x00c6, 0x0147, 0x0159, 0x013f, 0x0129, 0x0117, 0x002a,
  402. 0x002f, 0x0016, 0x0029, 0x004a, 0x0044, 0x0080, 0x0078, 0x00dd,
  403. 0x00cf, 0x00c2, 0x00b6, 0x0154, 0x013b, 0x0127, 0x021d, 0x0012,
  404. 0x0051, 0x0027, 0x004b, 0x0046, 0x0086, 0x007d, 0x0074, 0x00dc,
  405. 0x00cc, 0x00be, 0x00b2, 0x0145, 0x0137, 0x0125, 0x010f, 0x0010,
  406. 0x0093, 0x0048, 0x0045, 0x0087, 0x007f, 0x0076, 0x0070, 0x00d2,
  407. 0x00c8, 0x00bc, 0x0160, 0x0143, 0x0132, 0x011d, 0x021c, 0x000e,
  408. 0x0107, 0x0042, 0x0081, 0x007e, 0x0077, 0x0072, 0x00d6, 0x00ca,
  409. 0x00c0, 0x00b4, 0x0155, 0x013d, 0x012d, 0x0119, 0x0106, 0x000c,
  410. 0x00f9, 0x007b, 0x0079, 0x0075, 0x0071, 0x00d7, 0x00ce, 0x00c3,
  411. 0x00b9, 0x015b, 0x014a, 0x0134, 0x0123, 0x0110, 0x0208, 0x000a,
  412. 0x01b3, 0x0073, 0x006f, 0x006d, 0x00d3, 0x00cb, 0x00c4, 0x00bb,
  413. 0x0161, 0x014c, 0x0139, 0x012a, 0x011b, 0x0213, 0x017d, 0x0011,
  414. 0x01ab, 0x00d4, 0x00d0, 0x00cd, 0x00c9, 0x00c1, 0x00ba, 0x00b1,
  415. 0x00a9, 0x0140, 0x012f, 0x011e, 0x010c, 0x0202, 0x0179, 0x0010,
  416. 0x014f, 0x00c7, 0x00c5, 0x00bf, 0x00bd, 0x00b5, 0x00ae, 0x014d,
  417. 0x0141, 0x0131, 0x0121, 0x0113, 0x0209, 0x017b, 0x0173, 0x000b,
  418. 0x029c, 0x00b8, 0x00b7, 0x00b3, 0x00af, 0x0158, 0x014b, 0x013a,
  419. 0x0130, 0x0122, 0x0115, 0x0212, 0x017f, 0x0175, 0x016e, 0x000a,
  420. 0x028c, 0x015a, 0x00ab, 0x00a8, 0x00a4, 0x013e, 0x0135, 0x012b,
  421. 0x011f, 0x0114, 0x0107, 0x0201, 0x0177, 0x0170, 0x016a, 0x0006,
  422. 0x0288, 0x0142, 0x013c, 0x0138, 0x0133, 0x012e, 0x0124, 0x011c,
  423. 0x010d, 0x0105, 0x0200, 0x0178, 0x0172, 0x016c, 0x0167, 0x0004,
  424. 0x026c, 0x012c, 0x0128, 0x0126, 0x0120, 0x011a, 0x0111, 0x010a,
  425. 0x0203, 0x017c, 0x0176, 0x0171, 0x016d, 0x0169, 0x0165, 0x0002,
  426. 0x0409, 0x0118, 0x0116, 0x0112, 0x010b, 0x0108, 0x0103, 0x017e,
  427. 0x017a, 0x0174, 0x016f, 0x016b, 0x0168, 0x0166, 0x0164, 0x0000,
  428. 0x002b, 0x0014, 0x0013, 0x0011, 0x000f, 0x000d, 0x000b, 0x0009,
  429. 0x0007, 0x0006, 0x0004, 0x0007, 0x0005, 0x0003, 0x0001, 0x0003,
  430. };
  431. static const uint8_t mpa_huffbits_24[256] = {
  432. 4, 4, 6, 7, 8, 9, 9, 10,
  433. 10, 11, 11, 11, 11, 11, 12, 9,
  434. 4, 4, 5, 6, 7, 8, 8, 9,
  435. 9, 9, 10, 10, 10, 10, 10, 8,
  436. 6, 5, 6, 7, 7, 8, 8, 9,
  437. 9, 9, 9, 10, 10, 10, 11, 7,
  438. 7, 6, 7, 7, 8, 8, 8, 9,
  439. 9, 9, 9, 10, 10, 10, 10, 7,
  440. 8, 7, 7, 8, 8, 8, 8, 9,
  441. 9, 9, 10, 10, 10, 10, 11, 7,
  442. 9, 7, 8, 8, 8, 8, 9, 9,
  443. 9, 9, 10, 10, 10, 10, 10, 7,
  444. 9, 8, 8, 8, 8, 9, 9, 9,
  445. 9, 10, 10, 10, 10, 10, 11, 7,
  446. 10, 8, 8, 8, 9, 9, 9, 9,
  447. 10, 10, 10, 10, 10, 11, 11, 8,
  448. 10, 9, 9, 9, 9, 9, 9, 9,
  449. 9, 10, 10, 10, 10, 11, 11, 8,
  450. 10, 9, 9, 9, 9, 9, 9, 10,
  451. 10, 10, 10, 10, 11, 11, 11, 8,
  452. 11, 9, 9, 9, 9, 10, 10, 10,
  453. 10, 10, 10, 11, 11, 11, 11, 8,
  454. 11, 10, 9, 9, 9, 10, 10, 10,
  455. 10, 10, 10, 11, 11, 11, 11, 8,
  456. 11, 10, 10, 10, 10, 10, 10, 10,
  457. 10, 10, 11, 11, 11, 11, 11, 8,
  458. 11, 10, 10, 10, 10, 10, 10, 10,
  459. 11, 11, 11, 11, 11, 11, 11, 8,
  460. 12, 10, 10, 10, 10, 10, 10, 11,
  461. 11, 11, 11, 11, 11, 11, 11, 8,
  462. 8, 7, 7, 7, 7, 7, 7, 7,
  463. 7, 7, 7, 8, 8, 8, 8, 4,
  464. };
  465. static const HuffTable mpa_huff_tables[16] = {
  466. { 1, NULL, NULL },
  467. { 2, mpa_huffbits_1, mpa_huffcodes_1 },
  468. { 3, mpa_huffbits_2, mpa_huffcodes_2 },
  469. { 3, mpa_huffbits_3, mpa_huffcodes_3 },
  470. { 4, mpa_huffbits_5, mpa_huffcodes_5 },
  471. { 4, mpa_huffbits_6, mpa_huffcodes_6 },
  472. { 6, mpa_huffbits_7, mpa_huffcodes_7 },
  473. { 6, mpa_huffbits_8, mpa_huffcodes_8 },
  474. { 6, mpa_huffbits_9, mpa_huffcodes_9 },
  475. { 8, mpa_huffbits_10, mpa_huffcodes_10 },
  476. { 8, mpa_huffbits_11, mpa_huffcodes_11 },
  477. { 8, mpa_huffbits_12, mpa_huffcodes_12 },
  478. { 16, mpa_huffbits_13, mpa_huffcodes_13 },
  479. { 16, mpa_huffbits_15, mpa_huffcodes_15 },
  480. { 16, mpa_huffbits_16, mpa_huffcodes_16 },
  481. { 16, mpa_huffbits_24, mpa_huffcodes_24 },
  482. };
  483. static const uint8_t mpa_huff_data[32][2] = {
  484. { 0, 0 },
  485. { 1, 0 },
  486. { 2, 0 },
  487. { 3, 0 },
  488. { 0, 0 },
  489. { 4, 0 },
  490. { 5, 0 },
  491. { 6, 0 },
  492. { 7, 0 },
  493. { 8, 0 },
  494. { 9, 0 },
  495. { 10, 0 },
  496. { 11, 0 },
  497. { 12, 0 },
  498. { 0, 0 },
  499. { 13, 0 },
  500. { 14, 1 },
  501. { 14, 2 },
  502. { 14, 3 },
  503. { 14, 4 },
  504. { 14, 6 },
  505. { 14, 8 },
  506. { 14, 10 },
  507. { 14, 13 },
  508. { 15, 4 },
  509. { 15, 5 },
  510. { 15, 6 },
  511. { 15, 7 },
  512. { 15, 8 },
  513. { 15, 9 },
  514. { 15, 11 },
  515. { 15, 13 },
  516. };
  517. /* huffman tables for quadrules */
  518. static const uint8_t mpa_quad_codes[2][16] = {
  519. { 1, 5, 4, 5, 6, 5, 4, 4, 7, 3, 6, 0, 7, 2, 3, 1, },
  520. { 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, },
  521. };
  522. static const uint8_t mpa_quad_bits[2][16] = {
  523. { 1, 4, 4, 5, 4, 6, 5, 6, 4, 5, 5, 6, 5, 6, 6, 6, },
  524. { 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, },
  525. };
  526. /* band size tables */
  527. static const uint8_t band_size_long[9][22] = {
  528. { 4, 4, 4, 4, 4, 4, 6, 6, 8, 8, 10,
  529. 12, 16, 20, 24, 28, 34, 42, 50, 54, 76, 158, }, /* 44100 */
  530. { 4, 4, 4, 4, 4, 4, 6, 6, 6, 8, 10,
  531. 12, 16, 18, 22, 28, 34, 40, 46, 54, 54, 192, }, /* 48000 */
  532. { 4, 4, 4, 4, 4, 4, 6, 6, 8, 10, 12,
  533. 16, 20, 24, 30, 38, 46, 56, 68, 84, 102, 26, }, /* 32000 */
  534. { 6, 6, 6, 6, 6, 6, 8, 10, 12, 14, 16,
  535. 20, 24, 28, 32, 38, 46, 52, 60, 68, 58, 54, }, /* 22050 */
  536. { 6, 6, 6, 6, 6, 6, 8, 10, 12, 14, 16,
  537. 18, 22, 26, 32, 38, 46, 52, 64, 70, 76, 36, }, /* 24000 */
  538. { 6, 6, 6, 6, 6, 6, 8, 10, 12, 14, 16,
  539. 20, 24, 28, 32, 38, 46, 52, 60, 68, 58, 54, }, /* 16000 */
  540. { 6, 6, 6, 6, 6, 6, 8, 10, 12, 14, 16,
  541. 20, 24, 28, 32, 38, 46, 52, 60, 68, 58, 54, }, /* 11025 */
  542. { 6, 6, 6, 6, 6, 6, 8, 10, 12, 14, 16,
  543. 20, 24, 28, 32, 38, 46, 52, 60, 68, 58, 54, }, /* 12000 */
  544. { 12, 12, 12, 12, 12, 12, 16, 20, 24, 28, 32,
  545. 40, 48, 56, 64, 76, 90, 2, 2, 2, 2, 2, }, /* 8000 */
  546. };
  547. static const uint8_t band_size_short[9][13] = {
  548. { 4, 4, 4, 4, 6, 8, 10, 12, 14, 18, 22, 30, 56, }, /* 44100 */
  549. { 4, 4, 4, 4, 6, 6, 10, 12, 14, 16, 20, 26, 66, }, /* 48000 */
  550. { 4, 4, 4, 4, 6, 8, 12, 16, 20, 26, 34, 42, 12, }, /* 32000 */
  551. { 4, 4, 4, 6, 6, 8, 10, 14, 18, 26, 32, 42, 18, }, /* 22050 */
  552. { 4, 4, 4, 6, 8, 10, 12, 14, 18, 24, 32, 44, 12, }, /* 24000 */
  553. { 4, 4, 4, 6, 8, 10, 12, 14, 18, 24, 30, 40, 18, }, /* 16000 */
  554. { 4, 4, 4, 6, 8, 10, 12, 14, 18, 24, 30, 40, 18, }, /* 11025 */
  555. { 4, 4, 4, 6, 8, 10, 12, 14, 18, 24, 30, 40, 18, }, /* 12000 */
  556. { 8, 8, 8, 12, 16, 20, 24, 28, 36, 2, 2, 2, 26, }, /* 8000 */
  557. };
  558. static const uint8_t mpa_pretab[2][22] = {
  559. { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  560. { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 3, 3, 3, 2, 0 },
  561. };
  562. /* table for alias reduction (XXX: store it as integer !) */
  563. static const float ci_table[8] = {
  564. -0.6, -0.535, -0.33, -0.185, -0.095, -0.041, -0.0142, -0.0037,
  565. };
  566. #endif /* AVCODEC_MPEGAUDIODECTAB_H */