libavcodec/qdm2data.h

   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 qdm2data.h
  27  * Various QDM2 tables.
  28  */
  29
  30 #ifndef FFMPEG_QDM2DATA_H
  31 #define FFMPEG_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 uint8_t last_coeff[3] = {
 258     4, 7, 10
 259 };
 260
 261 static 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 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 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 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 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 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 /* FFMPEG_QDM2DATA_H */