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  1. /*
  2.  * QDM2 compatible decoder
  3.  * Copyright (c) 2003 Ewald Snel
  4.  * Copyright (c) 2005 Benjamin Larsson
  5.  * Copyright (c) 2005 Alex Beregszaszi
  6.  * Copyright (c) 2005 Roberto Togni
  7.  *
  8.  * This file is part of FFmpeg.
  9.  *
  10.  * FFmpeg is free software; you can redistribute it and/or
  11.  * modify it under the terms of the GNU Lesser General Public
  12.  * License as published by the Free Software Foundation; either
  13.  * version 2.1 of the License, or (at your option) any later version.
  14.  *
  15.  * FFmpeg is distributed in the hope that it will be useful,
  16.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18.  * Lesser General Public License for more details.
  19.  *
  20.  * You should have received a copy of the GNU Lesser General Public
  21.  * License along with FFmpeg; if not, write to the Free Software
  22.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  23.  */
  24.  
  25.  /**
  26.  * @file
  27.  * Various QDM2 tables.
  28.  */
  29.  
  30. #ifndef AVCODEC_QDM2DATA_H
  31. #define AVCODEC_QDM2DATA_H
  32.  
  33. #include <stdint.h>
  34.  
  35. /** VLC TABLES **/
  36.  
  37. /* values in this table range from -1..23; adjust retrieved value by -1 */
  38. static const uint16_t vlc_tab_level_huffcodes[24] = {
  39.     0x037c, 0x0004, 0x003c, 0x004c, 0x003a, 0x002c, 0x001c, 0x001a,
  40.     0x0024, 0x0014, 0x0001, 0x0002, 0x0000, 0x0003, 0x0007, 0x0005,
  41.     0x0006, 0x0008, 0x0009, 0x000a, 0x000c, 0x00fc, 0x007c, 0x017c
  42. };
  43.  
  44. static const uint8_t vlc_tab_level_huffbits[24] = {
  45.     10, 6, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 3, 3, 3, 3, 4, 4, 5, 7, 8, 9, 10
  46. };
  47.  
  48. /* values in this table range from -1..36; adjust retrieved value by -1 */
  49. static const uint16_t vlc_tab_diff_huffcodes[37] = {
  50.     0x1c57, 0x0004, 0x0000, 0x0001, 0x0003, 0x0002, 0x000f, 0x000e,
  51.     0x0007, 0x0016, 0x0037, 0x0027, 0x0026, 0x0066, 0x0006, 0x0097,
  52.     0x0046, 0x01c6, 0x0017, 0x0786, 0x0086, 0x0257, 0x00d7, 0x0357,
  53.     0x00c6, 0x0386, 0x0186, 0x0000, 0x0157, 0x0c57, 0x0057, 0x0000,
  54.     0x0b86, 0x0000, 0x1457, 0x0000, 0x0457
  55. };
  56.  
  57. static const uint8_t vlc_tab_diff_huffbits[37] = {
  58.     13, 3, 3, 2, 3, 3, 4, 4, 6, 5, 6, 6, 7, 7, 8, 8,
  59.     8, 9, 8, 11, 9, 10, 8, 10, 9, 12, 10, 0, 10, 13, 11, 0,
  60.     12, 0, 13, 0, 13
  61. };
  62.  
  63. /* values in this table range from -1..5; adjust retrieved value by -1 */
  64. static const uint8_t vlc_tab_run_huffcodes[6] = {
  65.     0x1f, 0x00, 0x01, 0x03, 0x07, 0x0f
  66. };
  67.  
  68. static const uint8_t vlc_tab_run_huffbits[6] = {
  69.     5, 1, 2, 3, 4, 5
  70. };
  71.  
  72. /* values in this table range from -1..19; adjust retrieved value by -1 */
  73. static const uint16_t vlc_tab_tone_level_idx_hi1_huffcodes[20] = {
  74.     0x5714, 0x000c, 0x0002, 0x0001, 0x0000, 0x0004, 0x0034, 0x0054,
  75.     0x0094, 0x0014, 0x0114, 0x0214, 0x0314, 0x0614, 0x0e14, 0x0f14,
  76.     0x2714, 0x0714, 0x1714, 0x3714
  77. };
  78.  
  79. static const uint8_t vlc_tab_tone_level_idx_hi1_huffbits[20] = {
  80.     15, 4, 2, 1, 3, 5, 6, 7, 8, 10, 10, 11, 11, 12, 12, 12, 14, 14, 15, 14
  81. };
  82.  
  83. /* values in this table range from -1..23; adjust retrieved value by -1 */
  84. static const uint16_t vlc_tab_tone_level_idx_mid_huffcodes[24] = {
  85.     0x0fea, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
  86.     0x0000, 0x0000, 0x0000, 0x0000, 0x03ea, 0x00ea, 0x002a, 0x001a,
  87.     0x0006, 0x0001, 0x0000, 0x0002, 0x000a, 0x006a, 0x01ea, 0x07ea
  88. };
  89.  
  90. static const uint8_t vlc_tab_tone_level_idx_mid_huffbits[24] = {
  91.     12, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 11, 9, 7, 5, 3, 1, 2, 4, 6, 8, 10, 12
  92. };
  93.  
  94. /* values in this table range from -1..23; adjust retrieved value by -1 */
  95. static const uint16_t vlc_tab_tone_level_idx_hi2_huffcodes[24] = {
  96.     0x0664, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0064, 0x00e4,
  97.     0x00a4, 0x0068, 0x0004, 0x0008, 0x0014, 0x0018, 0x0000, 0x0001,
  98.     0x0002, 0x0003, 0x000c, 0x0028, 0x0024, 0x0164, 0x0000, 0x0264
  99. };
  100.  
  101. static const uint8_t vlc_tab_tone_level_idx_hi2_huffbits[24] = {
  102.     11, 0, 0, 0, 0, 0, 10, 8, 8, 7, 6, 6, 5, 5, 4, 2, 2, 2, 4, 7, 8, 9, 0, 11
  103. };
  104.  
  105. /* values in this table range from -1..8; adjust retrieved value by -1 */
  106. static const uint8_t vlc_tab_type30_huffcodes[9] = {
  107.     0x3c, 0x06, 0x00, 0x01, 0x03, 0x02, 0x04, 0x0c, 0x1c
  108. };
  109.  
  110. static const uint8_t vlc_tab_type30_huffbits[9] = {
  111.     6, 3, 3, 2, 2, 3, 4, 5, 6
  112. };
  113.  
  114. /* values in this table range from -1..9; adjust retrieved value by -1 */
  115. static const uint8_t vlc_tab_type34_huffcodes[10] = {
  116.     0x18, 0x00, 0x01, 0x04, 0x05, 0x07, 0x03, 0x02, 0x06, 0x08
  117. };
  118.  
  119. static const uint8_t vlc_tab_type34_huffbits[10] = {
  120.     5, 4, 3, 3, 3, 3, 3, 3, 3, 5
  121. };
  122.  
  123. /* values in this table range from -1..22; adjust retrieved value by -1 */
  124. static const uint16_t vlc_tab_fft_tone_offset_0_huffcodes[23] = {
  125.     0x038e, 0x0001, 0x0000, 0x0022, 0x000a, 0x0006, 0x0012, 0x0002,
  126.     0x001e, 0x003e, 0x0056, 0x0016, 0x000e, 0x0032, 0x0072, 0x0042,
  127.     0x008e, 0x004e, 0x00f2, 0x002e, 0x0036, 0x00c2, 0x018e
  128. };
  129.  
  130. static const uint8_t vlc_tab_fft_tone_offset_0_huffbits[23] = {
  131.     10, 1, 2, 6, 4, 5, 6, 7, 6, 6, 7, 7, 8, 7, 8, 8, 9, 7, 8, 6, 6, 8, 10
  132. };
  133.  
  134. /* values in this table range from -1..27; adjust retrieved value by -1 */
  135. static const uint16_t vlc_tab_fft_tone_offset_1_huffcodes[28] = {
  136.     0x07a4, 0x0001, 0x0020, 0x0012, 0x001c, 0x0008, 0x0006, 0x0010,
  137.     0x0000, 0x0014, 0x0004, 0x0032, 0x0070, 0x000c, 0x0002, 0x003a,
  138.     0x001a, 0x002c, 0x002a, 0x0022, 0x0024, 0x000a, 0x0064, 0x0030,
  139.     0x0062, 0x00a4, 0x01a4, 0x03a4
  140. };
  141.  
  142. static const uint8_t vlc_tab_fft_tone_offset_1_huffbits[28] = {
  143.     11, 1, 6, 6, 5, 4, 3, 6, 6, 5, 6, 6, 7, 6, 6, 6,
  144.     6, 6, 6, 7, 8, 6, 7, 7, 7, 9, 10, 11
  145. };
  146.  
  147. /* values in this table range from -1..31; adjust retrieved value by -1 */
  148. static const uint16_t vlc_tab_fft_tone_offset_2_huffcodes[32] = {
  149.     0x1760, 0x0001, 0x0000, 0x0082, 0x000c, 0x0006, 0x0003, 0x0007,
  150.     0x0008, 0x0004, 0x0010, 0x0012, 0x0022, 0x001a, 0x0000, 0x0020,
  151.     0x000a, 0x0040, 0x004a, 0x006a, 0x002a, 0x0042, 0x0002, 0x0060,
  152.     0x00aa, 0x00e0, 0x00c2, 0x01c2, 0x0160, 0x0360, 0x0760, 0x0f60
  153. };
  154.  
  155. static const uint8_t vlc_tab_fft_tone_offset_2_huffbits[32] = {
  156.     13, 2, 0, 8, 4, 3, 3, 3, 4, 4, 5, 5, 6, 5, 7, 7,
  157.     7, 7, 7, 7, 8, 8, 8, 9, 8, 8, 9, 9, 10, 11, 13, 12
  158. };
  159.  
  160. /* values in this table range from -1..34; adjust retrieved value by -1 */
  161. static const uint16_t vlc_tab_fft_tone_offset_3_huffcodes[35] = {
  162.     0x33ea, 0x0005, 0x0000, 0x000c, 0x0000, 0x0006, 0x0003, 0x0008,
  163.     0x0002, 0x0001, 0x0004, 0x0007, 0x001a, 0x000f, 0x001c, 0x002c,
  164.     0x000a, 0x001d, 0x002d, 0x002a, 0x000d, 0x004c, 0x008c, 0x006a,
  165.     0x00cd, 0x004d, 0x00ea, 0x020c, 0x030c, 0x010c, 0x01ea, 0x07ea,
  166.     0x0bea, 0x03ea, 0x13ea
  167. };
  168.  
  169. static const uint8_t vlc_tab_fft_tone_offset_3_huffbits[35] = {
  170.     14, 4, 0, 10, 4, 3, 3, 4, 4, 3, 4, 4, 5, 4, 5, 6,
  171.     6, 5, 6, 7, 7, 7, 8, 8, 8, 8, 9, 10, 10, 10, 10, 11,
  172.     12, 13, 14
  173. };
  174.  
  175. /* values in this table range from -1..37; adjust retrieved value by -1 */
  176. static const uint16_t vlc_tab_fft_tone_offset_4_huffcodes[38] = {
  177.     0x5282, 0x0016, 0x0000, 0x0136, 0x0004, 0x0000, 0x0007, 0x000a,
  178.     0x000e, 0x0003, 0x0001, 0x000d, 0x0006, 0x0009, 0x0012, 0x0005,
  179.     0x0025, 0x0022, 0x0015, 0x0002, 0x0076, 0x0035, 0x0042, 0x00c2,
  180.     0x0182, 0x00b6, 0x0036, 0x03c2, 0x0482, 0x01c2, 0x0682, 0x0882,
  181.     0x0a82, 0x0082, 0x0282, 0x1282, 0x3282, 0x2282
  182. };
  183.  
  184. static const uint8_t vlc_tab_fft_tone_offset_4_huffbits[38] = {
  185.     15, 6, 0, 9, 3, 3, 3, 4, 4, 3, 4, 4, 5, 4, 5, 6,
  186.     6, 6, 6, 8, 7, 6, 8, 9, 9, 8, 9, 10, 11, 10, 11, 12,
  187.     12, 12, 14, 15, 14, 14
  188. };
  189.  
  190. /** FFT TABLES **/
  191.  
  192. /* values in this table range from -1..27; adjust retrieved value by -1 */
  193. static const uint16_t fft_level_exp_alt_huffcodes[28] = {
  194.     0x1ec6, 0x0006, 0x00c2, 0x0142, 0x0242, 0x0246, 0x00c6, 0x0046,
  195.     0x0042, 0x0146, 0x00a2, 0x0062, 0x0026, 0x0016, 0x000e, 0x0005,
  196.     0x0004, 0x0003, 0x0000, 0x0001, 0x000a, 0x0012, 0x0002, 0x0022,
  197.     0x01c6, 0x02c6, 0x06c6, 0x0ec6
  198. };
  199.  
  200. static const uint8_t fft_level_exp_alt_huffbits[28] = {
  201.     13, 7, 8, 9, 10, 10, 10, 10, 10, 9, 8, 7, 6, 5, 4, 3,
  202.     3, 2, 3, 3, 4, 5, 7, 8, 9, 11, 12, 13
  203. };
  204.  
  205. /* values in this table range from -1..19; adjust retrieved value by -1 */
  206. static const uint16_t fft_level_exp_huffcodes[20] = {
  207.     0x0f24, 0x0001, 0x0002, 0x0000, 0x0006, 0x0005, 0x0007, 0x000c,
  208.     0x000b, 0x0014, 0x0013, 0x0004, 0x0003, 0x0023, 0x0064, 0x00a4,
  209.     0x0024, 0x0124, 0x0324, 0x0724
  210. };
  211.  
  212. static const uint8_t fft_level_exp_huffbits[20] = {
  213.     12, 3, 3, 3, 3, 3, 3, 4, 4, 5, 5, 6, 6, 6, 7, 8, 9, 10, 11, 12
  214. };
  215.  
  216. /* values in this table range from -1..6; adjust retrieved value by -1 */
  217. static const uint8_t fft_stereo_exp_huffcodes[7] = {
  218.     0x3e, 0x01, 0x00, 0x02, 0x06, 0x0e, 0x1e
  219. };
  220.  
  221. static const uint8_t fft_stereo_exp_huffbits[7] = {
  222.     6, 1, 2, 3, 4, 5, 6
  223. };
  224.  
  225. /* values in this table range from -1..8; adjust retrieved value by -1 */
  226. static const uint8_t fft_stereo_phase_huffcodes[9] = {
  227.     0x35, 0x02, 0x00, 0x01, 0x0d, 0x15, 0x05, 0x09, 0x03
  228. };
  229.  
  230. static const uint8_t fft_stereo_phase_huffbits[9] = {
  231.     6, 2, 2, 4, 4, 6, 5, 4, 2
  232. };
  233.  
  234. static const int fft_cutoff_index_table[4][2] = {
  235.     { 1, 2 }, {-1, 0 }, {-1,-2 }, { 0, 0 }
  236. };
  237.  
  238. static const int16_t fft_level_index_table[256] = {
  239.     0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1,
  240.     2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
  241.     3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
  242.     3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
  243.     4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
  244.     4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
  245.     4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
  246.     4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
  247.     5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
  248.     5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
  249.     5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
  250.     5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
  251.     5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
  252.     5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
  253.     5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
  254.     5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
  255. };
  256.  
  257. static const uint8_t last_coeff[3] = {
  258.     4, 7, 10
  259. };
  260.  
  261. static const uint8_t coeff_per_sb_for_avg[3][30] = {
  262.     { 0, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3 },
  263.     { 0, 1, 2, 2, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6 },
  264.     { 0, 1, 2, 3, 4, 4, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9 }
  265. };
  266.  
  267. static const uint32_t dequant_table[3][10][30] = {
  268.     { { 256, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  269.       { 0, 256, 256, 205, 154, 102, 51, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  270.       { 0, 0, 0, 51, 102, 154, 205, 256, 238, 219, 201, 183, 165, 146, 128, 110, 91, 73, 55, 37, 18, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  271.       { 0, 0, 0, 0, 0, 0, 0, 0, 18, 37, 55, 73, 91, 110, 128, 146, 165, 183, 201, 219, 238, 256, 228, 199, 171, 142, 114, 85, 57, 28 },
  272.       { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  273.       { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  274.       { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  275.       { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  276.       { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  277.       { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } },
  278.     { { 256, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  279.       { 0, 256, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  280.       { 0, 0, 256, 171, 85, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  281.       { 0, 0, 0, 85, 171, 256, 171, 85, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  282.       { 0, 0, 0, 0, 0, 0, 85, 171, 256, 219, 183, 146, 110, 73, 37, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  283.       { 0, 0, 0, 0, 0, 0, 0, 0, 0, 37, 73, 110, 146, 183, 219, 256, 228, 199, 171, 142, 114, 85, 57, 28, 0, 0, 0, 0, 0, 0 },
  284.       { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 28, 57, 85, 114, 142, 171, 199, 228, 256, 213, 171, 128, 85, 43 },
  285.       { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  286.       { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  287.       { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } },
  288.     { { 256, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  289.       { 0, 256, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  290.       { 0, 0, 256, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  291.       { 0, 0, 0, 256, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  292.       { 0, 0, 0, 0, 256, 256, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  293.       { 0, 0, 0, 0, 0, 0, 256, 171, 85, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  294.       { 0, 0, 0, 0, 0, 0, 0, 85, 171, 256, 192, 128, 64, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  295.       { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 64, 128, 192, 256, 205, 154, 102, 51, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  296.       { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 51, 102, 154, 205, 256, 213, 171, 128, 85, 43, 0, 0, 0, 0, 0, 0 },
  297.       { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 43, 85, 128, 171, 213, 256, 213, 171, 128, 85, 43 } }
  298. };
  299.  
  300. static const uint8_t coeff_per_sb_for_dequant[3][30] = {
  301.     { 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3 },
  302.     { 0, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6 },
  303.     { 0, 1, 2, 3, 4, 4, 5, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9 }
  304. };
  305.  
  306. /* first index is subband, 2nd index is 0, 1 or 3 (2 is unused) */
  307. static const int8_t tone_level_idx_offset_table[30][4] = {
  308.     { -50, -50,  0, -50 },
  309.     { -50, -50,  0, -50 },
  310.     { -50,  -9,  0, -19 },
  311.     { -16,  -6,  0, -12 },
  312.     { -11,  -4,  0,  -8 },
  313.     {  -8,  -3,  0,  -6 },
  314.     {  -7,  -3,  0,  -5 },
  315.     {  -6,  -2,  0,  -4 },
  316.     {  -5,  -2,  0,  -3 },
  317.     {  -4,  -1,  0,  -3 },
  318.     {  -4,  -1,  0,  -2 },
  319.     {  -3,  -1,  0,  -2 },
  320.     {  -3,  -1,  0,  -2 },
  321.     {  -3,  -1,  0,  -2 },
  322.     {  -2,  -1,  0,  -1 },
  323.     {  -2,  -1,  0,  -1 },
  324.     {  -2,  -1,  0,  -1 },
  325.     {  -2,   0,  0,  -1 },
  326.     {  -2,   0,  0,  -1 },
  327.     {  -1,   0,  0,  -1 },
  328.     {  -1,   0,  0,  -1 },
  329.     {  -1,   0,  0,  -1 },
  330.     {  -1,   0,  0,  -1 },
  331.     {  -1,   0,  0,  -1 },
  332.     {  -1,   0,  0,  -1 },
  333.     {  -1,   0,  0,  -1 },
  334.     {  -1,   0,  0,   0 },
  335.     {  -1,   0,  0,   0 },
  336.     {  -1,   0,  0,   0 },
  337.     {  -1,   0,  0,   0 }
  338. };
  339.  
  340. /* all my samples have 1st index 0 or 1 */
  341. /* second index is subband, only indexes 0-29 seem to be used */
  342. static const int8_t coding_method_table[5][30] = {
  343.     { 34, 30, 24, 24, 16, 16, 16, 16, 10, 10, 10, 10, 10, 10, 10,
  344.       10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10
  345.     },
  346.     { 34, 30, 24, 24, 16, 16, 16, 16, 10, 10, 10, 10, 10, 10, 10,
  347.       10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10
  348.     },
  349.     { 34, 30, 30, 30, 24, 24, 16, 16, 16, 16, 16, 16, 10, 10, 10,
  350.       10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10
  351.     },
  352.     { 34, 34, 30, 30, 24, 24, 24, 24, 16, 16, 16, 16, 16, 16, 16,
  353.       16, 16, 16, 16, 16, 16, 16, 10, 10, 10, 10, 10, 10, 10, 10
  354.     },
  355.     { 34, 34, 30, 30, 30, 30, 30, 30, 24, 24, 24, 24, 24, 24, 24,
  356.       24, 24, 24, 24, 24, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16
  357.     },
  358. };
  359.  
  360. static const int vlc_stage3_values[60] = {
  361.         0,     1,     2,     3,     4,     6,     8,    10,    12,    16,    20,    24,
  362.        28,    36,    44,    52,    60,    76,    92,   108,   124,   156,   188,   220,
  363.       252,   316,   380,   444,   508,   636,   764,   892,  1020,  1276,  1532,  1788,
  364.      2044,  2556,  3068,  3580,  4092,  5116,  6140,  7164,  8188, 10236, 12284, 14332,
  365.     16380, 20476, 24572, 28668, 32764, 40956, 49148, 57340, 65532, 81916, 98300,114684
  366. };
  367.  
  368. static const float fft_tone_sample_table[4][16][5] = {
  369.     { { .0100000000f,-.0037037037f,-.0020000000f,-.0069444444f,-.0018416207f },
  370.       { .0416666667f, .0000000000f, .0000000000f,-.0208333333f,-.0123456791f },
  371.       { .1250000000f, .0558035709f, .0330687836f,-.0164473690f,-.0097465888f },
  372.       { .1562500000f, .0625000000f, .0370370370f,-.0062500000f,-.0037037037f },
  373.       { .1996007860f, .0781250000f, .0462962948f, .0022727272f, .0013468013f },
  374.       { .2000000000f, .0625000000f, .0370370373f, .0208333333f, .0074074073f },
  375.       { .2127659619f, .0555555556f, .0329218097f, .0208333333f, .0123456791f },
  376.       { .2173913121f, .0473484844f, .0280583613f, .0347222239f, .0205761325f },
  377.       { .2173913121f, .0347222239f, .0205761325f, .0473484844f, .0280583613f },
  378.       { .2127659619f, .0208333333f, .0123456791f, .0555555556f, .0329218097f },
  379.       { .2000000000f, .0208333333f, .0074074073f, .0625000000f, .0370370370f },
  380.       { .1996007860f, .0022727272f, .0013468013f, .0781250000f, .0462962948f },
  381.       { .1562500000f,-.0062500000f,-.0037037037f, .0625000000f, .0370370370f },
  382.       { .1250000000f,-.0164473690f,-.0097465888f, .0558035709f, .0330687836f },
  383.       { .0416666667f,-.0208333333f,-.0123456791f, .0000000000f, .0000000000f },
  384.       { .0100000000f,-.0069444444f,-.0018416207f,-.0037037037f,-.0020000000f } },
  385.  
  386.     { { .0050000000f,-.0200000000f, .0125000000f,-.3030303030f, .0020000000f },
  387.       { .1041666642f, .0400000000f,-.0250000000f, .0333333333f,-.0200000000f },
  388.       { .1250000000f, .0100000000f, .0142857144f,-.0500000007f,-.0200000000f },
  389.       { .1562500000f,-.0006250000f,-.00049382716f,-.000625000f,-.00049382716f },
  390.       { .1562500000f,-.0006250000f,-.00049382716f,-.000625000f,-.00049382716f },
  391.       { .1250000000f,-.0500000000f,-.0200000000f, .0100000000f, .0142857144f },
  392.       { .1041666667f, .0333333333f,-.0200000000f, .0400000000f,-.0250000000f },
  393.       { .0050000000f,-.3030303030f, .0020000001f,-.0200000000f, .0125000000f },
  394.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
  395.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
  396.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
  397.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
  398.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
  399.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
  400.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
  401.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f } },
  402.  
  403.     { { .1428571492f, .1250000000f,-.0285714287f,-.0357142873f, .0208333333f },
  404.       { .1818181818f, .0588235296f, .0333333333f, .0212765951f, .0100000000f },
  405.       { .1818181818f, .0212765951f, .0100000000f, .0588235296f, .0333333333f },
  406.       { .1428571492f,-.0357142873f, .0208333333f, .1250000000f,-.0285714287f },
  407.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
  408.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
  409.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
  410.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
  411.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
  412.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
  413.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
  414.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
  415.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
  416.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
  417.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
  418.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f } },
  419.  
  420.     { { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
  421.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
  422.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
  423.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
  424.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
  425.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
  426.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
  427.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
  428.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
  429.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
  430.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
  431.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
  432.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
  433.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
  434.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
  435.       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f } }
  436. };
  437.  
  438. static const float fft_tone_level_table[2][64] = { {
  439. /* pow ~ (i > 46) ? 0 : (((((i & 1) ? 431 : 304) << (i >> 1))) / 1024.0); */
  440.     0.17677669f, 0.42677650f, 0.60355347f, 0.85355347f,
  441.     1.20710683f, 1.68359375f, 2.37500000f, 3.36718750f,
  442.     4.75000000f, 6.73437500f, 9.50000000f, 13.4687500f,
  443.     19.0000000f, 26.9375000f, 38.0000000f, 53.8750000f,
  444.     76.0000000f, 107.750000f, 152.000000f, 215.500000f,
  445.     304.000000f, 431.000000f, 608.000000f, 862.000000f,
  446.     1216.00000f, 1724.00000f, 2432.00000f, 3448.00000f,
  447.     4864.00000f, 6896.00000f, 9728.00000f, 13792.0000f,
  448.     19456.0000f, 27584.0000f, 38912.0000f, 55168.0000f,
  449.     77824.0000f, 110336.000f, 155648.000f, 220672.000f,
  450.     311296.000f, 441344.000f, 622592.000f, 882688.000f,
  451.     1245184.00f, 1765376.00f, 2490368.00f, 0.00000000f,
  452.     0.00000000f, 0.00000000f, 0.00000000f, 0.00000000f,
  453.     0.00000000f, 0.00000000f, 0.00000000f, 0.00000000f,
  454.     0.00000000f, 0.00000000f, 0.00000000f, 0.00000000f,
  455.     0.00000000f, 0.00000000f, 0.00000000f, 0.00000000f,
  456.   }, {
  457. /* pow = (i > 45) ? 0 : ((((i & 1) ? 431 : 304) << (i >> 1)) / 512.0); */
  458.     0.59375000f, 0.84179688f, 1.18750000f, 1.68359375f,
  459.     2.37500000f, 3.36718750f, 4.75000000f, 6.73437500f,
  460.     9.50000000f, 13.4687500f, 19.0000000f, 26.9375000f,
  461.     38.0000000f, 53.8750000f, 76.0000000f, 107.750000f,
  462.     152.000000f, 215.500000f, 304.000000f, 431.000000f,
  463.     608.000000f, 862.000000f, 1216.00000f, 1724.00000f,
  464.     2432.00000f, 3448.00000f, 4864.00000f, 6896.00000f,
  465.     9728.00000f, 13792.0000f, 19456.0000f, 27584.0000f,
  466.     38912.0000f, 55168.0000f, 77824.0000f, 110336.000f,
  467.     155648.000f, 220672.000f, 311296.000f, 441344.000f,
  468.     622592.000f, 882688.000f, 1245184.00f, 1765376.00f,
  469.     2490368.00f, 3530752.00f, 0.00000000f, 0.00000000f,
  470.     0.00000000f, 0.00000000f, 0.00000000f, 0.00000000f,
  471.     0.00000000f, 0.00000000f, 0.00000000f, 0.00000000f,
  472.     0.00000000f, 0.00000000f, 0.00000000f, 0.00000000f,
  473.     0.00000000f, 0.00000000f, 0.00000000f, 0.00000000f
  474. } };
  475.  
  476. static const float fft_tone_envelope_table[4][31] = {
  477.     { .009607375f, .038060248f, .084265202f, .146446645f, .222214907f, .308658302f,
  478.       .402454883f, .500000060f, .597545207f, .691341758f, .777785182f, .853553414f,
  479.       .915734828f, .961939812f, .990392685f, 1.00000000f, .990392625f, .961939752f,
  480.       .915734768f, .853553295f, .777785063f, .691341639f, .597545087f, .500000000f,
  481.       .402454853f, .308658272f, .222214878f, .146446615f, .084265172f, .038060218f,
  482.       .009607345f },
  483.     { .038060248f, .146446645f, .308658302f, .500000060f, .691341758f, .853553414f,
  484.       .961939812f, 1.00000000f, .961939752f, .853553295f, .691341639f, .500000000f,
  485.       .308658272f, .146446615f, .038060218f, .000000000f, .000000000f, .000000000f,
  486.       .000000000f, .000000000f, .000000000f, .000000000f, .000000000f, .000000000f,
  487.       .000000000f, .000000000f, .000000000f, .000000000f, .000000000f, .000000000f,
  488.       .000000000f },
  489.     { .146446645f, .500000060f, .853553414f, 1.00000000f, .853553295f, .500000000f,
  490.       .146446615f, .000000000f, .000000000f, .000000000f, .000000000f, .000000000f,
  491.       .000000000f, .000000000f, .000000000f, .000000000f, .000000000f, .000000000f,
  492.       .000000000f, .000000000f, .000000000f, .000000000f, .000000000f, .000000000f,
  493.       .000000000f, .000000000f, .000000000f, .000000000f, .000000000f, .000000000f,
  494.       .000000000f },
  495.     { .500000060f, 1.00000000f, .500000000f, .000000000f, .000000000f, .000000000f,
  496.       .000000000f, .000000000f, .000000000f, .000000000f, .000000000f, .000000000f,
  497.       .000000000f, .000000000f, .000000000f, .000000000f, .000000000f, .000000000f,
  498.       .000000000f, .000000000f, .000000000f, .000000000f, .000000000f, .000000000f,
  499.       .000000000f, .000000000f, .000000000f, .000000000f, .000000000f, .000000000f,
  500.       .000000000f }
  501. };
  502.  
  503. static const float sb_noise_attenuation[32] = {
  504.     0.0f, 0.0f, 0.3f, 0.4f, 0.5f, 0.7f, 1.0f, 1.0f,
  505.     1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f,
  506.     1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f,
  507.     1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f,
  508. };
  509.  
  510. static const uint8_t fft_subpackets[32] = {
  511.     0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0,
  512.     0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0
  513. };
  514.  
  515. /* first index is joined_stereo, second index is 0 or 2 (1 is unused) */
  516. static const float dequant_1bit[2][3] = {
  517.     {-0.920000f, 0.000000f, 0.920000f },
  518.     {-0.890000f, 0.000000f, 0.890000f }
  519. };
  520.  
  521. static const float type30_dequant[8] = {
  522.    -1.0f,-0.625f,-0.291666656732559f,0.0f,
  523.    0.25f,0.5f,0.75f,1.0f,
  524. };
  525.  
  526. static const float type34_delta[10] = { // FIXME: covers 8 entries..
  527.     -1.0f,-0.60947573184967f,-0.333333343267441f,-0.138071194291115f,0.0f,
  528.     0.138071194291115f,0.333333343267441f,0.60947573184967f,1.0f,0.0f,
  529. };
  530.  
  531. #endif /* AVCODEC_QDM2DATA_H */
  532.