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FFmpeg/libavcodec/mpegaudiodectab.h

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  1. /**

  2.  * @file mpegaudiodectab.h

  3.  * mpeg audio layer decoder tables. 

  4.  */

  5. 

  6. const uint16_t mpa_bitrate_tab[2][3][15] = {

  7.     { {0, 32, 64, 96, 128, 160, 192, 224, 256, 288, 320, 352, 384, 416, 448 },

  8.       {0, 32, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 384 },

  9.       {0, 32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320 } },

  10.     { {0, 32, 48, 56, 64, 80, 96, 112, 128, 144, 160, 176, 192, 224, 256},

  11.       {0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160},

  12.       {0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160}

  13.     }

  14. };

  15. 

  16. const uint16_t mpa_freq_tab[3] = { 44100, 48000, 32000 };

  17. 

  18. /*******************************************************/

  19. /* half mpeg encoding window (full precision) */

  20. const int32_t mpa_enwindow[257] = {

  21.      0,    -1,    -1,    -1,    -1,    -1,    -1,    -2,

  22.     -2,    -2,    -2,    -3,    -3,    -4,    -4,    -5,

  23.     -5,    -6,    -7,    -7,    -8,    -9,   -10,   -11,

  24.    -13,   -14,   -16,   -17,   -19,   -21,   -24,   -26,

  25.    -29,   -31,   -35,   -38,   -41,   -45,   -49,   -53,

  26.    -58,   -63,   -68,   -73,   -79,   -85,   -91,   -97,

  27.   -104,  -111,  -117,  -125,  -132,  -139,  -147,  -154,

  28.   -161,  -169,  -176,  -183,  -190,  -196,  -202,  -208,

  29.    213,   218,   222,   225,   227,   228,   228,   227,

  30.    224,   221,   215,   208,   200,   189,   177,   163,

  31.    146,   127,   106,    83,    57,    29,    -2,   -36,

  32.    -72,  -111,  -153,  -197,  -244,  -294,  -347,  -401,

  33.   -459,  -519,  -581,  -645,  -711,  -779,  -848,  -919,

  34.   -991, -1064, -1137, -1210, -1283, -1356, -1428, -1498,

  35.  -1567, -1634, -1698, -1759, -1817, -1870, -1919, -1962,

  36.  -2001, -2032, -2057, -2075, -2085, -2087, -2080, -2063,

  37.   2037,  2000,  1952,  1893,  1822,  1739,  1644,  1535,

  38.   1414,  1280,  1131,   970,   794,   605,   402,   185,

  39.    -45,  -288,  -545,  -814, -1095, -1388, -1692, -2006,

  40.  -2330, -2663, -3004, -3351, -3705, -4063, -4425, -4788,

  41.  -5153, -5517, -5879, -6237, -6589, -6935, -7271, -7597,

  42.  -7910, -8209, -8491, -8755, -8998, -9219, -9416, -9585,

  43.  -9727, -9838, -9916, -9959, -9966, -9935, -9863, -9750,

  44.  -9592, -9389, -9139, -8840, -8492, -8092, -7640, -7134,

  45.   6574,  5959,  5288,  4561,  3776,  2935,  2037,  1082,

  46.     70,  -998, -2122, -3300, -4533, -5818, -7154, -8540,

  47.  -9975,-11455,-12980,-14548,-16155,-17799,-19478,-21189,

  48. -22929,-24694,-26482,-28289,-30112,-31947,-33791,-35640,

  49. -37489,-39336,-41176,-43006,-44821,-46617,-48390,-50137,

  50. -51853,-53534,-55178,-56778,-58333,-59838,-61289,-62684,

  51. -64019,-65290,-66494,-67629,-68692,-69679,-70590,-71420,

  52. -72169,-72835,-73415,-73908,-74313,-74630,-74856,-74992,

  53.  75038,

  54. };

  55. 

  56. /*******************************************************/

  57. /* layer 2 tables */

  58. 

  59. const int sblimit_table[5] = { 27 , 30 , 8, 12 , 30 };

  60. 

  61. const int quant_steps[17] = {

  62.     3,     5,    7,    9,    15,

  63.     31,    63,  127,  255,   511,

  64.     1023,  2047, 4095, 8191, 16383,

  65.     32767, 65535

  66. };

  67. 

  68. /* we use a negative value if grouped */

  69. const int quant_bits[17] = {

  70.     -5,  -7,  3, -10, 4, 

  71.      5,  6,  7,  8,  9,

  72.     10, 11, 12, 13, 14,

  73.     15, 16 

  74. };

  75. 

  76. /* encoding tables which give the quantization index. Note how it is

  77.    possible to store them efficiently ! */

  78. static const unsigned char alloc_table_0[] = {

  79.  4,  0,  2,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15, 16, 

  80.  4,  0,  2,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15, 16, 

  81.  4,  0,  2,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15, 16, 

  82.  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 16, 

  83.  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 16, 

  84.  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 16, 

  85.  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 16, 

  86.  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 16, 

  87.  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 16, 

  88.  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 16, 

  89.  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 16, 

  90.  3,  0,  1,  2,  3,  4,  5, 16, 

  91.  3,  0,  1,  2,  3,  4,  5, 16, 

  92.  3,  0,  1,  2,  3,  4,  5, 16, 

  93.  3,  0,  1,  2,  3,  4,  5, 16, 

  94.  3,  0,  1,  2,  3,  4,  5, 16, 

  95.  3,  0,  1,  2,  3,  4,  5, 16, 

  96.  3,  0,  1,  2,  3,  4,  5, 16, 

  97.  3,  0,  1,  2,  3,  4,  5, 16, 

  98.  3,  0,  1,  2,  3,  4,  5, 16, 

  99.  3,  0,  1,  2,  3,  4,  5, 16, 

  100.  3,  0,  1,  2,  3,  4,  5, 16, 

  101.  3,  0,  1,  2,  3,  4,  5, 16, 

  102.  2,  0,  1, 16, 

  103.  2,  0,  1, 16, 

  104.  2,  0,  1, 16, 

  105.  2,  0,  1, 16, 

  106. };

  107. 

  108. static const unsigned char alloc_table_1[] = {

  109.  4,  0,  2,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15, 16, 

  110.  4,  0,  2,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15, 16, 

  111.  4,  0,  2,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15, 16, 

  112.  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 16, 

  113.  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 16, 

  114.  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 16, 

  115.  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 16, 

  116.  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 16, 

  117.  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 16, 

  118.  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 16, 

  119.  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 16, 

  120.  3,  0,  1,  2,  3,  4,  5, 16, 

  121.  3,  0,  1,  2,  3,  4,  5, 16, 

  122.  3,  0,  1,  2,  3,  4,  5, 16, 

  123.  3,  0,  1,  2,  3,  4,  5, 16, 

  124.  3,  0,  1,  2,  3,  4,  5, 16, 

  125.  3,  0,  1,  2,  3,  4,  5, 16, 

  126.  3,  0,  1,  2,  3,  4,  5, 16, 

  127.  3,  0,  1,  2,  3,  4,  5, 16, 

  128.  3,  0,  1,  2,  3,  4,  5, 16, 

  129.  3,  0,  1,  2,  3,  4,  5, 16, 

  130.  3,  0,  1,  2,  3,  4,  5, 16, 

  131.  3,  0,  1,  2,  3,  4,  5, 16, 

  132.  2,  0,  1, 16, 

  133.  2,  0,  1, 16, 

  134.  2,  0,  1, 16, 

  135.  2,  0,  1, 16, 

  136.  2,  0,  1, 16, 

  137.  2,  0,  1, 16, 

  138.  2,  0,  1, 16, 

  139. };

  140. 

  141. static const unsigned char alloc_table_2[] = {

  142.  4,  0,  1,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15, 

  143.  4,  0,  1,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15, 

  144.  3,  0,  1,  3,  4,  5,  6,  7, 

  145.  3,  0,  1,  3,  4,  5,  6,  7, 

  146.  3,  0,  1,  3,  4,  5,  6,  7, 

  147.  3,  0,  1,  3,  4,  5,  6,  7, 

  148.  3,  0,  1,  3,  4,  5,  6,  7, 

  149.  3,  0,  1,  3,  4,  5,  6,  7, 

  150. };

  151. 

  152. static const unsigned char alloc_table_3[] = {

  153.  4,  0,  1,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15, 

  154.  4,  0,  1,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15, 

  155.  3,  0,  1,  3,  4,  5,  6,  7, 

  156.  3,  0,  1,  3,  4,  5,  6,  7, 

  157.  3,  0,  1,  3,  4,  5,  6,  7, 

  158.  3,  0,  1,  3,  4,  5,  6,  7, 

  159.  3,  0,  1,  3,  4,  5,  6,  7, 

  160.  3,  0,  1,  3,  4,  5,  6,  7, 

  161.  3,  0,  1,  3,  4,  5,  6,  7, 

  162.  3,  0,  1,  3,  4,  5,  6,  7, 

  163.  3,  0,  1,  3,  4,  5,  6,  7, 

  164.  3,  0,  1,  3,  4,  5,  6,  7, 

  165. };

  166. 

  167. static const unsigned char alloc_table_4[] = {

  168.  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14,

  169.  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 

  170.  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 

  171.  4,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 

  172.  3,  0,  1,  3,  4,  5,  6,  7, 

  173.  3,  0,  1,  3,  4,  5,  6,  7, 

  174.  3,  0,  1,  3,  4,  5,  6,  7, 

  175.  3,  0,  1,  3,  4,  5,  6,  7, 

  176.  3,  0,  1,  3,  4,  5,  6,  7, 

  177.  3,  0,  1,  3,  4,  5,  6,  7, 

  178.  3,  0,  1,  3,  4,  5,  6,  7, 

  179.  2,  0,  1,  3, 

  180.  2,  0,  1,  3, 

  181.  2,  0,  1,  3, 

  182.  2,  0,  1,  3, 

  183.  2,  0,  1,  3, 

  184.  2,  0,  1,  3, 

  185.  2,  0,  1,  3, 

  186.  2,  0,  1,  3, 

  187.  2,  0,  1,  3, 

  188.  2,  0,  1,  3, 

  189.  2,  0,  1,  3, 

  190.  2,  0,  1,  3, 

  191.  2,  0,  1,  3, 

  192.  2,  0,  1,  3, 

  193.  2,  0,  1,  3, 

  194.  2,  0,  1,  3, 

  195.  2,  0,  1,  3, 

  196.  2,  0,  1,  3, 

  197.  2,  0,  1,  3, 

  198. };

  199. 

  200. const unsigned char *alloc_tables[5] = 

  201. { alloc_table_0, alloc_table_1, alloc_table_2, alloc_table_3, alloc_table_4, };

  202. 

  203. /*******************************************************/

  204. /* layer 3 tables */

  205. 

  206. /* layer3 scale factor size */

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

  208.     { 0, 0, 0, 0, 3, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4 },

  209.     { 0, 1, 2, 3, 0, 1, 2, 3, 1, 2, 3, 1, 2, 3, 2, 3 },

  210. };

  211. 

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

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

  214.     { {  6,  5,  5, 5 }, {  9,  9,  9, 9 }, {  6,  9,  9, 9 } },

  215.     { {  6,  5,  7, 3 }, {  9,  9, 12, 6 }, {  6,  9, 12, 6 } },

  216.     { { 11, 10,  0, 0 }, { 18, 18,  0, 0 }, { 15, 18,  0, 0 } },

  217.     { {  7,  7,  7, 0 }, { 12, 12, 12, 0 }, {  6, 15, 12, 0 } }, 

  218.     { {  6,  6,  6, 3 }, { 12,  9,  9, 6 }, {  6, 12,  9, 6 } },

  219.     { {  8,  8,  5, 0 }, { 15, 12,  9, 0 }, {  6, 18,  9, 0 } },

  220. };

  221. 

  222. /* mpegaudio layer 3 huffman tables */

  223. 

  224. const uint16_t mpa_huffcodes_1[4] = {

  225.  0x0001, 0x0001, 0x0001, 0x0000,

  226. };

  227. 

  228. const uint8_t mpa_huffbits_1[4] = {

  229.   1,  3,  2,  3,

  230. };

  231. 

  232. const uint16_t mpa_huffcodes_2[9] = {

  233.  0x0001, 0x0002, 0x0001, 0x0003, 0x0001, 0x0001, 0x0003, 0x0002,

  234.  0x0000,

  235. };

  236. 

  237. const uint8_t mpa_huffbits_2[9] = {

  238.   1,  3,  6,  3,  3,  5,  5,  5,

  239.   6,

  240. };

  241. 

  242. const uint16_t mpa_huffcodes_3[9] = {

  243.  0x0003, 0x0002, 0x0001, 0x0001, 0x0001, 0x0001, 0x0003, 0x0002,

  244.  0x0000,

  245. };

  246. 

  247. const uint8_t mpa_huffbits_3[9] = {

  248.   2,  2,  6,  3,  2,  5,  5,  5,

  249.   6,

  250. };

  251. 

  252. const uint16_t mpa_huffcodes_5[16] = {

  253.  0x0001, 0x0002, 0x0006, 0x0005, 0x0003, 0x0001, 0x0004, 0x0004,

  254.  0x0007, 0x0005, 0x0007, 0x0001, 0x0006, 0x0001, 0x0001, 0x0000,

  255. };

  256. 

  257. const uint8_t mpa_huffbits_5[16] = {

  258.   1,  3,  6,  7,  3,  3,  6,  7,

  259.   6,  6,  7,  8,  7,  6,  7,  8,

  260. };

  261. 

  262. const uint16_t mpa_huffcodes_6[16] = {

  263.  0x0007, 0x0003, 0x0005, 0x0001, 0x0006, 0x0002, 0x0003, 0x0002,

  264.  0x0005, 0x0004, 0x0004, 0x0001, 0x0003, 0x0003, 0x0002, 0x0000,

  265. };

  266. 

  267. const uint8_t mpa_huffbits_6[16] = {

  268.   3,  3,  5,  7,  3,  2,  4,  5,

  269.   4,  4,  5,  6,  6,  5,  6,  7,

  270. };

  271. 

  272. const uint16_t mpa_huffcodes_7[36] = {

  273.  0x0001, 0x0002, 0x000a, 0x0013, 0x0010, 0x000a, 0x0003, 0x0003,

  274.  0x0007, 0x000a, 0x0005, 0x0003, 0x000b, 0x0004, 0x000d, 0x0011,

  275.  0x0008, 0x0004, 0x000c, 0x000b, 0x0012, 0x000f, 0x000b, 0x0002,

  276.  0x0007, 0x0006, 0x0009, 0x000e, 0x0003, 0x0001, 0x0006, 0x0004,

  277.  0x0005, 0x0003, 0x0002, 0x0000,

  278. };

  279. 

  280. const uint8_t mpa_huffbits_7[36] = {

  281.   1,  3,  6,  8,  8,  9,  3,  4,

  282.   6,  7,  7,  8,  6,  5,  7,  8,

  283.   8,  9,  7,  7,  8,  9,  9,  9,

  284.   7,  7,  8,  9,  9, 10,  8,  8,

  285.   9, 10, 10, 10,

  286. };

  287. 

  288. const uint16_t mpa_huffcodes_8[36] = {

  289.  0x0003, 0x0004, 0x0006, 0x0012, 0x000c, 0x0005, 0x0005, 0x0001,

  290.  0x0002, 0x0010, 0x0009, 0x0003, 0x0007, 0x0003, 0x0005, 0x000e,

  291.  0x0007, 0x0003, 0x0013, 0x0011, 0x000f, 0x000d, 0x000a, 0x0004,

  292.  0x000d, 0x0005, 0x0008, 0x000b, 0x0005, 0x0001, 0x000c, 0x0004,

  293.  0x0004, 0x0001, 0x0001, 0x0000,

  294. };

  295. 

  296. const uint8_t mpa_huffbits_8[36] = {

  297.   2,  3,  6,  8,  8,  9,  3,  2,

  298.   4,  8,  8,  8,  6,  4,  6,  8,

  299.   8,  9,  8,  8,  8,  9,  9, 10,

  300.   8,  7,  8,  9, 10, 10,  9,  8,

  301.   9,  9, 11, 11,

  302. };

  303. 

  304. const uint16_t mpa_huffcodes_9[36] = {

  305.  0x0007, 0x0005, 0x0009, 0x000e, 0x000f, 0x0007, 0x0006, 0x0004,

  306.  0x0005, 0x0005, 0x0006, 0x0007, 0x0007, 0x0006, 0x0008, 0x0008,

  307.  0x0008, 0x0005, 0x000f, 0x0006, 0x0009, 0x000a, 0x0005, 0x0001,

  308.  0x000b, 0x0007, 0x0009, 0x0006, 0x0004, 0x0001, 0x000e, 0x0004,

  309.  0x0006, 0x0002, 0x0006, 0x0000,

  310. };

  311. 

  312. const uint8_t mpa_huffbits_9[36] = {

  313.   3,  3,  5,  6,  8,  9,  3,  3,

  314.   4,  5,  6,  8,  4,  4,  5,  6,

  315.   7,  8,  6,  5,  6,  7,  7,  8,

  316.   7,  6,  7,  7,  8,  9,  8,  7,

  317.   8,  8,  9,  9,

  318. };

  319. 

  320. const uint16_t mpa_huffcodes_10[64] = {

  321.  0x0001, 0x0002, 0x000a, 0x0017, 0x0023, 0x001e, 0x000c, 0x0011,

  322.  0x0003, 0x0003, 0x0008, 0x000c, 0x0012, 0x0015, 0x000c, 0x0007,

  323.  0x000b, 0x0009, 0x000f, 0x0015, 0x0020, 0x0028, 0x0013, 0x0006,

  324.  0x000e, 0x000d, 0x0016, 0x0022, 0x002e, 0x0017, 0x0012, 0x0007,

  325.  0x0014, 0x0013, 0x0021, 0x002f, 0x001b, 0x0016, 0x0009, 0x0003,

  326.  0x001f, 0x0016, 0x0029, 0x001a, 0x0015, 0x0014, 0x0005, 0x0003,

  327.  0x000e, 0x000d, 0x000a, 0x000b, 0x0010, 0x0006, 0x0005, 0x0001,

  328.  0x0009, 0x0008, 0x0007, 0x0008, 0x0004, 0x0004, 0x0002, 0x0000,

  329. };

  330. 

  331. const uint8_t mpa_huffbits_10[64] = {

  332.   1,  3,  6,  8,  9,  9,  9, 10,

  333.   3,  4,  6,  7,  8,  9,  8,  8,

  334.   6,  6,  7,  8,  9, 10,  9,  9,

  335.   7,  7,  8,  9, 10, 10,  9, 10,

  336.   8,  8,  9, 10, 10, 10, 10, 10,

  337.   9,  9, 10, 10, 11, 11, 10, 11,

  338.   8,  8,  9, 10, 10, 10, 11, 11,

  339.   9,  8,  9, 10, 10, 11, 11, 11,

  340. };

  341. 

  342. const uint16_t mpa_huffcodes_11[64] = {

  343.  0x0003, 0x0004, 0x000a, 0x0018, 0x0022, 0x0021, 0x0015, 0x000f,

  344.  0x0005, 0x0003, 0x0004, 0x000a, 0x0020, 0x0011, 0x000b, 0x000a,

  345.  0x000b, 0x0007, 0x000d, 0x0012, 0x001e, 0x001f, 0x0014, 0x0005,

  346.  0x0019, 0x000b, 0x0013, 0x003b, 0x001b, 0x0012, 0x000c, 0x0005,

  347.  0x0023, 0x0021, 0x001f, 0x003a, 0x001e, 0x0010, 0x0007, 0x0005,

  348.  0x001c, 0x001a, 0x0020, 0x0013, 0x0011, 0x000f, 0x0008, 0x000e,

  349.  0x000e, 0x000c, 0x0009, 0x000d, 0x000e, 0x0009, 0x0004, 0x0001,

  350.  0x000b, 0x0004, 0x0006, 0x0006, 0x0006, 0x0003, 0x0002, 0x0000,

  351. };

  352. 

  353. const uint8_t mpa_huffbits_11[64] = {

  354.   2,  3,  5,  7,  8,  9,  8,  9,

  355.   3,  3,  4,  6,  8,  8,  7,  8,

  356.   5,  5,  6,  7,  8,  9,  8,  8,

  357.   7,  6,  7,  9,  8, 10,  8,  9,

  358.   8,  8,  8,  9,  9, 10,  9, 10,

  359.   8,  8,  9, 10, 10, 11, 10, 11,

  360.   8,  7,  7,  8,  9, 10, 10, 10,

  361.   8,  7,  8,  9, 10, 10, 10, 10,

  362. };

  363. 

  364. const uint16_t mpa_huffcodes_12[64] = {

  365.  0x0009, 0x0006, 0x0010, 0x0021, 0x0029, 0x0027, 0x0026, 0x001a,

  366.  0x0007, 0x0005, 0x0006, 0x0009, 0x0017, 0x0010, 0x001a, 0x000b,

  367.  0x0011, 0x0007, 0x000b, 0x000e, 0x0015, 0x001e, 0x000a, 0x0007,

  368.  0x0011, 0x000a, 0x000f, 0x000c, 0x0012, 0x001c, 0x000e, 0x0005,

  369.  0x0020, 0x000d, 0x0016, 0x0013, 0x0012, 0x0010, 0x0009, 0x0005,

  370.  0x0028, 0x0011, 0x001f, 0x001d, 0x0011, 0x000d, 0x0004, 0x0002,

  371.  0x001b, 0x000c, 0x000b, 0x000f, 0x000a, 0x0007, 0x0004, 0x0001,

  372.  0x001b, 0x000c, 0x0008, 0x000c, 0x0006, 0x0003, 0x0001, 0x0000,

  373. };

  374. 

  375. const uint8_t mpa_huffbits_12[64] = {

  376.   4,  3,  5,  7,  8,  9,  9,  9,

  377.   3,  3,  4,  5,  7,  7,  8,  8,

  378.   5,  4,  5,  6,  7,  8,  7,  8,

  379.   6,  5,  6,  6,  7,  8,  8,  8,

  380.   7,  6,  7,  7,  8,  8,  8,  9,

  381.   8,  7,  8,  8,  8,  9,  8,  9,

  382.   8,  7,  7,  8,  8,  9,  9, 10,

  383.   9,  8,  8,  9,  9,  9,  9, 10,

  384. };

  385. 

  386. const uint16_t mpa_huffcodes_13[256] = {

  387.  0x0001, 0x0005, 0x000e, 0x0015, 0x0022, 0x0033, 0x002e, 0x0047,

  388.  0x002a, 0x0034, 0x0044, 0x0034, 0x0043, 0x002c, 0x002b, 0x0013,

  389.  0x0003, 0x0004, 0x000c, 0x0013, 0x001f, 0x001a, 0x002c, 0x0021,

  390.  0x001f, 0x0018, 0x0020, 0x0018, 0x001f, 0x0023, 0x0016, 0x000e,

  391.  0x000f, 0x000d, 0x0017, 0x0024, 0x003b, 0x0031, 0x004d, 0x0041,

  392.  0x001d, 0x0028, 0x001e, 0x0028, 0x001b, 0x0021, 0x002a, 0x0010,

  393.  0x0016, 0x0014, 0x0025, 0x003d, 0x0038, 0x004f, 0x0049, 0x0040,

  394.  0x002b, 0x004c, 0x0038, 0x0025, 0x001a, 0x001f, 0x0019, 0x000e,

  395.  0x0023, 0x0010, 0x003c, 0x0039, 0x0061, 0x004b, 0x0072, 0x005b,

  396.  0x0036, 0x0049, 0x0037, 0x0029, 0x0030, 0x0035, 0x0017, 0x0018,

  397.  0x003a, 0x001b, 0x0032, 0x0060, 0x004c, 0x0046, 0x005d, 0x0054,

  398.  0x004d, 0x003a, 0x004f, 0x001d, 0x004a, 0x0031, 0x0029, 0x0011,

  399.  0x002f, 0x002d, 0x004e, 0x004a, 0x0073, 0x005e, 0x005a, 0x004f,

  400.  0x0045, 0x0053, 0x0047, 0x0032, 0x003b, 0x0026, 0x0024, 0x000f,

  401.  0x0048, 0x0022, 0x0038, 0x005f, 0x005c, 0x0055, 0x005b, 0x005a,

  402.  0x0056, 0x0049, 0x004d, 0x0041, 0x0033, 0x002c, 0x002b, 0x002a,

  403.  0x002b, 0x0014, 0x001e, 0x002c, 0x0037, 0x004e, 0x0048, 0x0057,

  404.  0x004e, 0x003d, 0x002e, 0x0036, 0x0025, 0x001e, 0x0014, 0x0010,

  405.  0x0035, 0x0019, 0x0029, 0x0025, 0x002c, 0x003b, 0x0036, 0x0051,

  406.  0x0042, 0x004c, 0x0039, 0x0036, 0x0025, 0x0012, 0x0027, 0x000b,

  407.  0x0023, 0x0021, 0x001f, 0x0039, 0x002a, 0x0052, 0x0048, 0x0050,

  408.  0x002f, 0x003a, 0x0037, 0x0015, 0x0016, 0x001a, 0x0026, 0x0016,

  409.  0x0035, 0x0019, 0x0017, 0x0026, 0x0046, 0x003c, 0x0033, 0x0024,

  410.  0x0037, 0x001a, 0x0022, 0x0017, 0x001b, 0x000e, 0x0009, 0x0007,

  411.  0x0022, 0x0020, 0x001c, 0x0027, 0x0031, 0x004b, 0x001e, 0x0034,

  412.  0x0030, 0x0028, 0x0034, 0x001c, 0x0012, 0x0011, 0x0009, 0x0005,

  413.  0x002d, 0x0015, 0x0022, 0x0040, 0x0038, 0x0032, 0x0031, 0x002d,

  414.  0x001f, 0x0013, 0x000c, 0x000f, 0x000a, 0x0007, 0x0006, 0x0003,

  415.  0x0030, 0x0017, 0x0014, 0x0027, 0x0024, 0x0023, 0x0035, 0x0015,

  416.  0x0010, 0x0017, 0x000d, 0x000a, 0x0006, 0x0001, 0x0004, 0x0002,

  417.  0x0010, 0x000f, 0x0011, 0x001b, 0x0019, 0x0014, 0x001d, 0x000b,

  418.  0x0011, 0x000c, 0x0010, 0x0008, 0x0001, 0x0001, 0x0000, 0x0001,

  419. };

  420. 

  421. const uint8_t mpa_huffbits_13[256] = {

  422.   1,  4,  6,  7,  8,  9,  9, 10,

  423.   9, 10, 11, 11, 12, 12, 13, 13,

  424.   3,  4,  6,  7,  8,  8,  9,  9,

  425.   9,  9, 10, 10, 11, 12, 12, 12,

  426.   6,  6,  7,  8,  9,  9, 10, 10,

  427.   9, 10, 10, 11, 11, 12, 13, 13,

  428.   7,  7,  8,  9,  9, 10, 10, 10,

  429.  10, 11, 11, 11, 11, 12, 13, 13,

  430.   8,  7,  9,  9, 10, 10, 11, 11,

  431.  10, 11, 11, 12, 12, 13, 13, 14,

  432.   9,  8,  9, 10, 10, 10, 11, 11,

  433.  11, 11, 12, 11, 13, 13, 14, 14,

  434.   9,  9, 10, 10, 11, 11, 11, 11,

  435.  11, 12, 12, 12, 13, 13, 14, 14,

  436.  10,  9, 10, 11, 11, 11, 12, 12,

  437.  12, 12, 13, 13, 13, 14, 16, 16,

  438.   9,  8,  9, 10, 10, 11, 11, 12,

  439.  12, 12, 12, 13, 13, 14, 15, 15,

  440.  10,  9, 10, 10, 11, 11, 11, 13,

  441.  12, 13, 13, 14, 14, 14, 16, 15,

  442.  10, 10, 10, 11, 11, 12, 12, 13,

  443.  12, 13, 14, 13, 14, 15, 16, 17,

  444.  11, 10, 10, 11, 12, 12, 12, 12,

  445.  13, 13, 13, 14, 15, 15, 15, 16,

  446.  11, 11, 11, 12, 12, 13, 12, 13,

  447.  14, 14, 15, 15, 15, 16, 16, 16,

  448.  12, 11, 12, 13, 13, 13, 14, 14,

  449.  14, 14, 14, 15, 16, 15, 16, 16,

  450.  13, 12, 12, 13, 13, 13, 15, 14,

  451.  14, 17, 15, 15, 15, 17, 16, 16,

  452.  12, 12, 13, 14, 14, 14, 15, 14,

  453.  15, 15, 16, 16, 19, 18, 19, 16,

  454. };

  455. 

  456. const uint16_t mpa_huffcodes_15[256] = {

  457.  0x0007, 0x000c, 0x0012, 0x0035, 0x002f, 0x004c, 0x007c, 0x006c,

  458.  0x0059, 0x007b, 0x006c, 0x0077, 0x006b, 0x0051, 0x007a, 0x003f,

  459.  0x000d, 0x0005, 0x0010, 0x001b, 0x002e, 0x0024, 0x003d, 0x0033,

  460.  0x002a, 0x0046, 0x0034, 0x0053, 0x0041, 0x0029, 0x003b, 0x0024,

  461.  0x0013, 0x0011, 0x000f, 0x0018, 0x0029, 0x0022, 0x003b, 0x0030,

  462.  0x0028, 0x0040, 0x0032, 0x004e, 0x003e, 0x0050, 0x0038, 0x0021,

  463.  0x001d, 0x001c, 0x0019, 0x002b, 0x0027, 0x003f, 0x0037, 0x005d,

  464.  0x004c, 0x003b, 0x005d, 0x0048, 0x0036, 0x004b, 0x0032, 0x001d,

  465.  0x0034, 0x0016, 0x002a, 0x0028, 0x0043, 0x0039, 0x005f, 0x004f,

  466.  0x0048, 0x0039, 0x0059, 0x0045, 0x0031, 0x0042, 0x002e, 0x001b,

  467.  0x004d, 0x0025, 0x0023, 0x0042, 0x003a, 0x0034, 0x005b, 0x004a,

  468.  0x003e, 0x0030, 0x004f, 0x003f, 0x005a, 0x003e, 0x0028, 0x0026,

  469.  0x007d, 0x0020, 0x003c, 0x0038, 0x0032, 0x005c, 0x004e, 0x0041,

  470.  0x0037, 0x0057, 0x0047, 0x0033, 0x0049, 0x0033, 0x0046, 0x001e,

  471.  0x006d, 0x0035, 0x0031, 0x005e, 0x0058, 0x004b, 0x0042, 0x007a,

  472.  0x005b, 0x0049, 0x0038, 0x002a, 0x0040, 0x002c, 0x0015, 0x0019,

  473.  0x005a, 0x002b, 0x0029, 0x004d, 0x0049, 0x003f, 0x0038, 0x005c,

  474.  0x004d, 0x0042, 0x002f, 0x0043, 0x0030, 0x0035, 0x0024, 0x0014,

  475.  0x0047, 0x0022, 0x0043, 0x003c, 0x003a, 0x0031, 0x0058, 0x004c,

  476.  0x0043, 0x006a, 0x0047, 0x0036, 0x0026, 0x0027, 0x0017, 0x000f,

  477.  0x006d, 0x0035, 0x0033, 0x002f, 0x005a, 0x0052, 0x003a, 0x0039,

  478.  0x0030, 0x0048, 0x0039, 0x0029, 0x0017, 0x001b, 0x003e, 0x0009,

  479.  0x0056, 0x002a, 0x0028, 0x0025, 0x0046, 0x0040, 0x0034, 0x002b,

  480.  0x0046, 0x0037, 0x002a, 0x0019, 0x001d, 0x0012, 0x000b, 0x000b,

  481.  0x0076, 0x0044, 0x001e, 0x0037, 0x0032, 0x002e, 0x004a, 0x0041,

  482.  0x0031, 0x0027, 0x0018, 0x0010, 0x0016, 0x000d, 0x000e, 0x0007,

  483.  0x005b, 0x002c, 0x0027, 0x0026, 0x0022, 0x003f, 0x0034, 0x002d,

  484.  0x001f, 0x0034, 0x001c, 0x0013, 0x000e, 0x0008, 0x0009, 0x0003,

  485.  0x007b, 0x003c, 0x003a, 0x0035, 0x002f, 0x002b, 0x0020, 0x0016,

  486.  0x0025, 0x0018, 0x0011, 0x000c, 0x000f, 0x000a, 0x0002, 0x0001,

  487.  0x0047, 0x0025, 0x0022, 0x001e, 0x001c, 0x0014, 0x0011, 0x001a,

  488.  0x0015, 0x0010, 0x000a, 0x0006, 0x0008, 0x0006, 0x0002, 0x0000,

  489. };

  490. 

  491. const uint8_t mpa_huffbits_15[256] = {

  492.   3,  4,  5,  7,  7,  8,  9,  9,

  493.   9, 10, 10, 11, 11, 11, 12, 13,

  494.   4,  3,  5,  6,  7,  7,  8,  8,

  495.   8,  9,  9, 10, 10, 10, 11, 11,

  496.   5,  5,  5,  6,  7,  7,  8,  8,

  497.   8,  9,  9, 10, 10, 11, 11, 11,

  498.   6,  6,  6,  7,  7,  8,  8,  9,

  499.   9,  9, 10, 10, 10, 11, 11, 11,

  500.   7,  6,  7,  7,  8,  8,  9,  9,

  501.   9,  9, 10, 10, 10, 11, 11, 11,

  502.   8,  7,  7,  8,  8,  8,  9,  9,

  503.   9,  9, 10, 10, 11, 11, 11, 12,

  504.   9,  7,  8,  8,  8,  9,  9,  9,

  505.   9, 10, 10, 10, 11, 11, 12, 12,

  506.   9,  8,  8,  9,  9,  9,  9, 10,

  507.  10, 10, 10, 10, 11, 11, 11, 12,

  508.   9,  8,  8,  9,  9,  9,  9, 10,

  509.  10, 10, 10, 11, 11, 12, 12, 12,

  510.   9,  8,  9,  9,  9,  9, 10, 10,

  511.  10, 11, 11, 11, 11, 12, 12, 12,

  512.  10,  9,  9,  9, 10, 10, 10, 10,

  513.  10, 11, 11, 11, 11, 12, 13, 12,

  514.  10,  9,  9,  9, 10, 10, 10, 10,

  515.  11, 11, 11, 11, 12, 12, 12, 13,

  516.  11, 10,  9, 10, 10, 10, 11, 11,

  517.  11, 11, 11, 11, 12, 12, 13, 13,

  518.  11, 10, 10, 10, 10, 11, 11, 11,

  519.  11, 12, 12, 12, 12, 12, 13, 13,

  520.  12, 11, 11, 11, 11, 11, 11, 11,

  521.  12, 12, 12, 12, 13, 13, 12, 13,

  522.  12, 11, 11, 11, 11, 11, 11, 12,

  523.  12, 12, 12, 12, 13, 13, 13, 13,

  524. };

  525. 

  526. const uint16_t mpa_huffcodes_16[256] = {

  527.  0x0001, 0x0005, 0x000e, 0x002c, 0x004a, 0x003f, 0x006e, 0x005d,

  528.  0x00ac, 0x0095, 0x008a, 0x00f2, 0x00e1, 0x00c3, 0x0178, 0x0011,

  529.  0x0003, 0x0004, 0x000c, 0x0014, 0x0023, 0x003e, 0x0035, 0x002f,

  530.  0x0053, 0x004b, 0x0044, 0x0077, 0x00c9, 0x006b, 0x00cf, 0x0009,

  531.  0x000f, 0x000d, 0x0017, 0x0026, 0x0043, 0x003a, 0x0067, 0x005a,

  532.  0x00a1, 0x0048, 0x007f, 0x0075, 0x006e, 0x00d1, 0x00ce, 0x0010,

  533.  0x002d, 0x0015, 0x0027, 0x0045, 0x0040, 0x0072, 0x0063, 0x0057,

  534.  0x009e, 0x008c, 0x00fc, 0x00d4, 0x00c7, 0x0183, 0x016d, 0x001a,

  535.  0x004b, 0x0024, 0x0044, 0x0041, 0x0073, 0x0065, 0x00b3, 0x00a4,

  536.  0x009b, 0x0108, 0x00f6, 0x00e2, 0x018b, 0x017e, 0x016a, 0x0009,

  537.  0x0042, 0x001e, 0x003b, 0x0038, 0x0066, 0x00b9, 0x00ad, 0x0109,

  538.  0x008e, 0x00fd, 0x00e8, 0x0190, 0x0184, 0x017a, 0x01bd, 0x0010,

  539.  0x006f, 0x0036, 0x0034, 0x0064, 0x00b8, 0x00b2, 0x00a0, 0x0085,

  540.  0x0101, 0x00f4, 0x00e4, 0x00d9, 0x0181, 0x016e, 0x02cb, 0x000a,

  541.  0x0062, 0x0030, 0x005b, 0x0058, 0x00a5, 0x009d, 0x0094, 0x0105,

  542.  0x00f8, 0x0197, 0x018d, 0x0174, 0x017c, 0x0379, 0x0374, 0x0008,

  543.  0x0055, 0x0054, 0x0051, 0x009f, 0x009c, 0x008f, 0x0104, 0x00f9,

  544.  0x01ab, 0x0191, 0x0188, 0x017f, 0x02d7, 0x02c9, 0x02c4, 0x0007,

  545.  0x009a, 0x004c, 0x0049, 0x008d, 0x0083, 0x0100, 0x00f5, 0x01aa,

  546.  0x0196, 0x018a, 0x0180, 0x02df, 0x0167, 0x02c6, 0x0160, 0x000b,

  547.  0x008b, 0x0081, 0x0043, 0x007d, 0x00f7, 0x00e9, 0x00e5, 0x00db,

  548.  0x0189, 0x02e7, 0x02e1, 0x02d0, 0x0375, 0x0372, 0x01b7, 0x0004,

  549.  0x00f3, 0x0078, 0x0076, 0x0073, 0x00e3, 0x00df, 0x018c, 0x02ea,

  550.  0x02e6, 0x02e0, 0x02d1, 0x02c8, 0x02c2, 0x00df, 0x01b4, 0x0006,

  551.  0x00ca, 0x00e0, 0x00de, 0x00da, 0x00d8, 0x0185, 0x0182, 0x017d,

  552.  0x016c, 0x0378, 0x01bb, 0x02c3, 0x01b8, 0x01b5, 0x06c0, 0x0004,

  553.  0x02eb, 0x00d3, 0x00d2, 0x00d0, 0x0172, 0x017b, 0x02de, 0x02d3,

  554.  0x02ca, 0x06c7, 0x0373, 0x036d, 0x036c, 0x0d83, 0x0361, 0x0002,

  555.  0x0179, 0x0171, 0x0066, 0x00bb, 0x02d6, 0x02d2, 0x0166, 0x02c7,

  556.  0x02c5, 0x0362, 0x06c6, 0x0367, 0x0d82, 0x0366, 0x01b2, 0x0000,

  557.  0x000c, 0x000a, 0x0007, 0x000b, 0x000a, 0x0011, 0x000b, 0x0009,

  558.  0x000d, 0x000c, 0x000a, 0x0007, 0x0005, 0x0003, 0x0001, 0x0003,

  559. };

  560. 

  561. const uint8_t mpa_huffbits_16[256] = {

  562.   1,  4,  6,  8,  9,  9, 10, 10,

  563.  11, 11, 11, 12, 12, 12, 13,  9,

  564.   3,  4,  6,  7,  8,  9,  9,  9,

  565.  10, 10, 10, 11, 12, 11, 12,  8,

  566.   6,  6,  7,  8,  9,  9, 10, 10,

  567.  11, 10, 11, 11, 11, 12, 12,  9,

  568.   8,  7,  8,  9,  9, 10, 10, 10,

  569.  11, 11, 12, 12, 12, 13, 13, 10,

  570.   9,  8,  9,  9, 10, 10, 11, 11,

  571.  11, 12, 12, 12, 13, 13, 13,  9,

  572.   9,  8,  9,  9, 10, 11, 11, 12,

  573.  11, 12, 12, 13, 13, 13, 14, 10,

  574.  10,  9,  9, 10, 11, 11, 11, 11,

  575.  12, 12, 12, 12, 13, 13, 14, 10,

  576.  10,  9, 10, 10, 11, 11, 11, 12,

  577.  12, 13, 13, 13, 13, 15, 15, 10,

  578.  10, 10, 10, 11, 11, 11, 12, 12,

  579.  13, 13, 13, 13, 14, 14, 14, 10,

  580.  11, 10, 10, 11, 11, 12, 12, 13,

  581.  13, 13, 13, 14, 13, 14, 13, 11,

  582.  11, 11, 10, 11, 12, 12, 12, 12,

  583.  13, 14, 14, 14, 15, 15, 14, 10,

  584.  12, 11, 11, 11, 12, 12, 13, 14,

  585.  14, 14, 14, 14, 14, 13, 14, 11,

  586.  12, 12, 12, 12, 12, 13, 13, 13,

  587.  13, 15, 14, 14, 14, 14, 16, 11,

  588.  14, 12, 12, 12, 13, 13, 14, 14,

  589.  14, 16, 15, 15, 15, 17, 15, 11,

  590.  13, 13, 11, 12, 14, 14, 13, 14,

  591.  14, 15, 16, 15, 17, 15, 14, 11,

  592.   9,  8,  8,  9,  9, 10, 10, 10,

  593.  11, 11, 11, 11, 11, 11, 11,  8,

  594. };

  595. 

  596. const uint16_t mpa_huffcodes_24[256] = {

  597.  0x000f, 0x000d, 0x002e, 0x0050, 0x0092, 0x0106, 0x00f8, 0x01b2,

  598.  0x01aa, 0x029d, 0x028d, 0x0289, 0x026d, 0x0205, 0x0408, 0x0058,

  599.  0x000e, 0x000c, 0x0015, 0x0026, 0x0047, 0x0082, 0x007a, 0x00d8,

  600.  0x00d1, 0x00c6, 0x0147, 0x0159, 0x013f, 0x0129, 0x0117, 0x002a,

  601.  0x002f, 0x0016, 0x0029, 0x004a, 0x0044, 0x0080, 0x0078, 0x00dd,

  602.  0x00cf, 0x00c2, 0x00b6, 0x0154, 0x013b, 0x0127, 0x021d, 0x0012,

  603.  0x0051, 0x0027, 0x004b, 0x0046, 0x0086, 0x007d, 0x0074, 0x00dc,

  604.  0x00cc, 0x00be, 0x00b2, 0x0145, 0x0137, 0x0125, 0x010f, 0x0010,

  605.  0x0093, 0x0048, 0x0045, 0x0087, 0x007f, 0x0076, 0x0070, 0x00d2,

  606.  0x00c8, 0x00bc, 0x0160, 0x0143, 0x0132, 0x011d, 0x021c, 0x000e,

  607.  0x0107, 0x0042, 0x0081, 0x007e, 0x0077, 0x0072, 0x00d6, 0x00ca,

  608.  0x00c0, 0x00b4, 0x0155, 0x013d, 0x012d, 0x0119, 0x0106, 0x000c,

  609.  0x00f9, 0x007b, 0x0079, 0x0075, 0x0071, 0x00d7, 0x00ce, 0x00c3,

  610.  0x00b9, 0x015b, 0x014a, 0x0134, 0x0123, 0x0110, 0x0208, 0x000a,

  611.  0x01b3, 0x0073, 0x006f, 0x006d, 0x00d3, 0x00cb, 0x00c4, 0x00bb,

  612.  0x0161, 0x014c, 0x0139, 0x012a, 0x011b, 0x0213, 0x017d, 0x0011,

  613.  0x01ab, 0x00d4, 0x00d0, 0x00cd, 0x00c9, 0x00c1, 0x00ba, 0x00b1,

  614.  0x00a9, 0x0140, 0x012f, 0x011e, 0x010c, 0x0202, 0x0179, 0x0010,

  615.  0x014f, 0x00c7, 0x00c5, 0x00bf, 0x00bd, 0x00b5, 0x00ae, 0x014d,

  616.  0x0141, 0x0131, 0x0121, 0x0113, 0x0209, 0x017b, 0x0173, 0x000b,

  617.  0x029c, 0x00b8, 0x00b7, 0x00b3, 0x00af, 0x0158, 0x014b, 0x013a,

  618.  0x0130, 0x0122, 0x0115, 0x0212, 0x017f, 0x0175, 0x016e, 0x000a,

  619.  0x028c, 0x015a, 0x00ab, 0x00a8, 0x00a4, 0x013e, 0x0135, 0x012b,

  620.  0x011f, 0x0114, 0x0107, 0x0201, 0x0177, 0x0170, 0x016a, 0x0006,

  621.  0x0288, 0x0142, 0x013c, 0x0138, 0x0133, 0x012e, 0x0124, 0x011c,

  622.  0x010d, 0x0105, 0x0200, 0x0178, 0x0172, 0x016c, 0x0167, 0x0004,

  623.  0x026c, 0x012c, 0x0128, 0x0126, 0x0120, 0x011a, 0x0111, 0x010a,

  624.  0x0203, 0x017c, 0x0176, 0x0171, 0x016d, 0x0169, 0x0165, 0x0002,

  625.  0x0409, 0x0118, 0x0116, 0x0112, 0x010b, 0x0108, 0x0103, 0x017e,

  626.  0x017a, 0x0174, 0x016f, 0x016b, 0x0168, 0x0166, 0x0164, 0x0000,

  627.  0x002b, 0x0014, 0x0013, 0x0011, 0x000f, 0x000d, 0x000b, 0x0009,

  628.  0x0007, 0x0006, 0x0004, 0x0007, 0x0005, 0x0003, 0x0001, 0x0003,

  629. };

  630. 

  631. const uint8_t mpa_huffbits_24[256] = {

  632.   4,  4,  6,  7,  8,  9,  9, 10,

  633.  10, 11, 11, 11, 11, 11, 12,  9,

  634.   4,  4,  5,  6,  7,  8,  8,  9,

  635.   9,  9, 10, 10, 10, 10, 10,  8,

  636.   6,  5,  6,  7,  7,  8,  8,  9,

  637.   9,  9,  9, 10, 10, 10, 11,  7,

  638.   7,  6,  7,  7,  8,  8,  8,  9,

  639.   9,  9,  9, 10, 10, 10, 10,  7,

  640.   8,  7,  7,  8,  8,  8,  8,  9,

  641.   9,  9, 10, 10, 10, 10, 11,  7,

  642.   9,  7,  8,  8,  8,  8,  9,  9,

  643.   9,  9, 10, 10, 10, 10, 10,  7,

  644.   9,  8,  8,  8,  8,  9,  9,  9,

  645.   9, 10, 10, 10, 10, 10, 11,  7,

  646.  10,  8,  8,  8,  9,  9,  9,  9,

  647.  10, 10, 10, 10, 10, 11, 11,  8,

  648.  10,  9,  9,  9,  9,  9,  9,  9,

  649.   9, 10, 10, 10, 10, 11, 11,  8,

  650.  10,  9,  9,  9,  9,  9,  9, 10,

  651.  10, 10, 10, 10, 11, 11, 11,  8,

  652.  11,  9,  9,  9,  9, 10, 10, 10,

  653.  10, 10, 10, 11, 11, 11, 11,  8,

  654.  11, 10,  9,  9,  9, 10, 10, 10,

  655.  10, 10, 10, 11, 11, 11, 11,  8,

  656.  11, 10, 10, 10, 10, 10, 10, 10,

  657.  10, 10, 11, 11, 11, 11, 11,  8,

  658.  11, 10, 10, 10, 10, 10, 10, 10,

  659.  11, 11, 11, 11, 11, 11, 11,  8,

  660.  12, 10, 10, 10, 10, 10, 10, 11,

  661.  11, 11, 11, 11, 11, 11, 11,  8,

  662.   8,  7,  7,  7,  7,  7,  7,  7,

  663.   7,  7,  7,  8,  8,  8,  8,  4,

  664. };

  665. 

  666. const HuffTable mpa_huff_tables[16] = {

  667. { 1, NULL, NULL },

  668. { 2, mpa_huffbits_1, mpa_huffcodes_1 },

  669. { 3, mpa_huffbits_2, mpa_huffcodes_2 },

  670. { 3, mpa_huffbits_3, mpa_huffcodes_3 },

  671. { 4, mpa_huffbits_5, mpa_huffcodes_5 },

  672. { 4, mpa_huffbits_6, mpa_huffcodes_6 },

  673. { 6, mpa_huffbits_7, mpa_huffcodes_7 },

  674. { 6, mpa_huffbits_8, mpa_huffcodes_8 },

  675. { 6, mpa_huffbits_9, mpa_huffcodes_9 },

  676. { 8, mpa_huffbits_10, mpa_huffcodes_10 },

  677. { 8, mpa_huffbits_11, mpa_huffcodes_11 },

  678. { 8, mpa_huffbits_12, mpa_huffcodes_12 },

  679. { 16, mpa_huffbits_13, mpa_huffcodes_13 },

  680. { 16, mpa_huffbits_15, mpa_huffcodes_15 },

  681. { 16, mpa_huffbits_16, mpa_huffcodes_16 },

  682. { 16, mpa_huffbits_24, mpa_huffcodes_24 },

  683. };

  684. 

  685. const uint8_t mpa_huff_data[32][2] = {

  686. { 0, 0 },

  687. { 1, 0 },

  688. { 2, 0 },

  689. { 3, 0 },

  690. { 0, 0 },

  691. { 4, 0 },

  692. { 5, 0 },

  693. { 6, 0 },

  694. { 7, 0 },

  695. { 8, 0 },

  696. { 9, 0 },

  697. { 10, 0 },

  698. { 11, 0 },

  699. { 12, 0 },

  700. { 0, 0 },

  701. { 13, 0 },

  702. { 14, 1 },

  703. { 14, 2 },

  704. { 14, 3 },

  705. { 14, 4 },

  706. { 14, 6 },

  707. { 14, 8 },

  708. { 14, 10 },

  709. { 14, 13 },

  710. { 15, 4 },

  711. { 15, 5 },

  712. { 15, 6 },

  713. { 15, 7 },

  714. { 15, 8 },

  715. { 15, 9 },

  716. { 15, 11 },

  717. { 15, 13 },

  718. };

  719. 

  720. 

  721. /* huffman tables for quadrules */

  722. static uint8_t mpa_quad_codes[2][16] = {

  723.     {  1,  5,  4,  5,  6,  5,  4,  4, 7,  3,  6,  0,  7,  2,  3,  1, },

  724.     { 15, 14, 13, 12, 11, 10,  9,  8, 7,  6,  5,  4,  3,  2,  1,  0, },

  725. };

  726. 

  727. static uint8_t mpa_quad_bits[2][16] = {

  728.     { 1, 4, 4, 5, 4, 6, 5, 6, 4, 5, 5, 6, 5, 6, 6, 6, },

  729.     { 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, },

  730. };

  731. 

  732. /* band size tables */

  733. const uint8_t band_size_long[9][22] = {

  734. { 4, 4, 4, 4, 4, 4, 6, 6, 8, 8, 10,

  735.   12, 16, 20, 24, 28, 34, 42, 50, 54, 76, 158, }, /* 44100 */

  736. { 4, 4, 4, 4, 4, 4, 6, 6, 6, 8, 10,

  737.   12, 16, 18, 22, 28, 34, 40, 46, 54, 54, 192, }, /* 48000 */

  738. { 4, 4, 4, 4, 4, 4, 6, 6, 8, 10, 12,

  739.   16, 20, 24, 30, 38, 46, 56, 68, 84, 102, 26, }, /* 32000 */

  740. { 6, 6, 6, 6, 6, 6, 8, 10, 12, 14, 16,

  741.   20, 24, 28, 32, 38, 46, 52, 60, 68, 58, 54, }, /* 22050 */

  742. { 6, 6, 6, 6, 6, 6, 8, 10, 12, 14, 16,

  743.   18, 22, 26, 32, 38, 46, 52, 64, 70, 76, 36, }, /* 24000 */

  744. { 6, 6, 6, 6, 6, 6, 8, 10, 12, 14, 16,

  745.   20, 24, 28, 32, 38, 46, 52, 60, 68, 58, 54, }, /* 16000 */

  746. { 6, 6, 6, 6, 6, 6, 8, 10, 12, 14, 16,

  747.   20, 24, 28, 32, 38, 46, 52, 60, 68, 58, 54, }, /* 11025 */

  748. { 6, 6, 6, 6, 6, 6, 8, 10, 12, 14, 16,

  749.   20, 24, 28, 32, 38, 46, 52, 60, 68, 58, 54, }, /* 12000 */

  750. { 12, 12, 12, 12, 12, 12, 16, 20, 24, 28, 32,

  751.   40, 48, 56, 64, 76, 90, 2, 2, 2, 2, 2, }, /* 8000 */

  752. };

  753. 

  754. const uint8_t band_size_short[9][13] = {

  755. { 4, 4, 4, 4, 6, 8, 10, 12, 14, 18, 22, 30, 56, }, /* 44100 */

  756. { 4, 4, 4, 4, 6, 6, 10, 12, 14, 16, 20, 26, 66, }, /* 48000 */

  757. { 4, 4, 4, 4, 6, 8, 12, 16, 20, 26, 34, 42, 12, }, /* 32000 */

  758. { 4, 4, 4, 6, 6, 8, 10, 14, 18, 26, 32, 42, 18, }, /* 22050 */

  759. { 4, 4, 4, 6, 8, 10, 12, 14, 18, 24, 32, 44, 12, }, /* 24000 */

  760. { 4, 4, 4, 6, 8, 10, 12, 14, 18, 24, 30, 40, 18, }, /* 16000 */

  761. { 4, 4, 4, 6, 8, 10, 12, 14, 18, 24, 30, 40, 18, }, /* 11025 */

  762. { 4, 4, 4, 6, 8, 10, 12, 14, 18, 24, 30, 40, 18, }, /* 12000 */

  763. { 8, 8, 8, 12, 16, 20, 24, 28, 36, 2, 2, 2, 26, }, /* 8000 */

  764. };

  765. 

  766. const uint8_t mpa_pretab[2][22] = {

  767.     { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },

  768.     { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 3, 3, 3, 2, 0 },

  769. };

  770. 

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

  772. const float ci_table[8] = {

  773.     -0.6, -0.535, -0.33, -0.185, -0.095, -0.041, -0.0142, -0.0037,

  774. };