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