FFmpeg: libavcodec/qdm2data.h Source File

00001 /*
00002  * QDM2 compatible decoder
00003  * Copyright (c) 2003 Ewald Snel
00004  * Copyright (c) 2005 Benjamin Larsson
00005  * Copyright (c) 2005 Alex Beregszaszi
00006  * Copyright (c) 2005 Roberto Togni
00007  *
00008  * This file is part of FFmpeg.
00009  *
00010  * FFmpeg is free software; you can redistribute it and/or
00011  * modify it under the terms of the GNU Lesser General Public
00012  * License as published by the Free Software Foundation; either
00013  * version 2.1 of the License, or (at your option) any later version.
00014  *
00015  * FFmpeg is distributed in the hope that it will be useful,
00016  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00017  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00018  * Lesser General Public License for more details.
00019  *
00020  * You should have received a copy of the GNU Lesser General Public
00021  * License along with FFmpeg; if not, write to the Free Software
00022  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
00023  */
00024 
00030 #ifndef AVCODEC_QDM2DATA_H
00031 #define AVCODEC_QDM2DATA_H
00032 
00033 #include <stdint.h>
00034 
00037 /* values in this table range from -1..23; adjust retrieved value by -1 */
00038 static const uint16_t vlc_tab_level_huffcodes[24] = {
00039     0x037c, 0x0004, 0x003c, 0x004c, 0x003a, 0x002c, 0x001c, 0x001a,
00040     0x0024, 0x0014, 0x0001, 0x0002, 0x0000, 0x0003, 0x0007, 0x0005,
00041     0x0006, 0x0008, 0x0009, 0x000a, 0x000c, 0x00fc, 0x007c, 0x017c
00042 };
00043 
00044 static const uint8_t vlc_tab_level_huffbits[24] = {
00045     10, 6, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 3, 3, 3, 3, 4, 4, 5, 7, 8, 9, 10
00046 };
00047 
00048 /* values in this table range from -1..36; adjust retrieved value by -1 */
00049 static const uint16_t vlc_tab_diff_huffcodes[37] = {
00050     0x1c57, 0x0004, 0x0000, 0x0001, 0x0003, 0x0002, 0x000f, 0x000e,
00051     0x0007, 0x0016, 0x0037, 0x0027, 0x0026, 0x0066, 0x0006, 0x0097,
00052     0x0046, 0x01c6, 0x0017, 0x0786, 0x0086, 0x0257, 0x00d7, 0x0357,
00053     0x00c6, 0x0386, 0x0186, 0x0000, 0x0157, 0x0c57, 0x0057, 0x0000,
00054     0x0b86, 0x0000, 0x1457, 0x0000, 0x0457
00055 };
00056 
00057 static const uint8_t vlc_tab_diff_huffbits[37] = {
00058     13, 3, 3, 2, 3, 3, 4, 4, 6, 5, 6, 6, 7, 7, 8, 8,
00059     8, 9, 8, 11, 9, 10, 8, 10, 9, 12, 10, 0, 10, 13, 11, 0,
00060     12, 0, 13, 0, 13
00061 };
00062 
00063 /* values in this table range from -1..5; adjust retrieved value by -1 */
00064 static const uint8_t vlc_tab_run_huffcodes[6] = {
00065     0x1f, 0x00, 0x01, 0x03, 0x07, 0x0f
00066 };
00067 
00068 static const uint8_t vlc_tab_run_huffbits[6] = {
00069     5, 1, 2, 3, 4, 5
00070 };
00071 
00072 /* values in this table range from -1..19; adjust retrieved value by -1 */
00073 static const uint16_t vlc_tab_tone_level_idx_hi1_huffcodes[20] = {
00074     0x5714, 0x000c, 0x0002, 0x0001, 0x0000, 0x0004, 0x0034, 0x0054,
00075     0x0094, 0x0014, 0x0114, 0x0214, 0x0314, 0x0614, 0x0e14, 0x0f14,
00076     0x2714, 0x0714, 0x1714, 0x3714
00077 };
00078 
00079 static const uint8_t vlc_tab_tone_level_idx_hi1_huffbits[20] = {
00080     15, 4, 2, 1, 3, 5, 6, 7, 8, 10, 10, 11, 11, 12, 12, 12, 14, 14, 15, 14
00081 };
00082 
00083 /* values in this table range from -1..23; adjust retrieved value by -1 */
00084 static const uint16_t vlc_tab_tone_level_idx_mid_huffcodes[24] = {
00085     0x0fea, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
00086     0x0000, 0x0000, 0x0000, 0x0000, 0x03ea, 0x00ea, 0x002a, 0x001a,
00087     0x0006, 0x0001, 0x0000, 0x0002, 0x000a, 0x006a, 0x01ea, 0x07ea
00088 };
00089 
00090 static const uint8_t vlc_tab_tone_level_idx_mid_huffbits[24] = {
00091     12, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 11, 9, 7, 5, 3, 1, 2, 4, 6, 8, 10, 12
00092 };
00093 
00094 /* values in this table range from -1..23; adjust retrieved value by -1 */
00095 static const uint16_t vlc_tab_tone_level_idx_hi2_huffcodes[24] = {
00096     0x0664, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0064, 0x00e4,
00097     0x00a4, 0x0068, 0x0004, 0x0008, 0x0014, 0x0018, 0x0000, 0x0001,
00098     0x0002, 0x0003, 0x000c, 0x0028, 0x0024, 0x0164, 0x0000, 0x0264
00099 };
00100 
00101 static const uint8_t vlc_tab_tone_level_idx_hi2_huffbits[24] = {
00102     11, 0, 0, 0, 0, 0, 10, 8, 8, 7, 6, 6, 5, 5, 4, 2, 2, 2, 4, 7, 8, 9, 0, 11
00103 };
00104 
00105 /* values in this table range from -1..8; adjust retrieved value by -1 */
00106 static const uint8_t vlc_tab_type30_huffcodes[9] = {
00107     0x3c, 0x06, 0x00, 0x01, 0x03, 0x02, 0x04, 0x0c, 0x1c
00108 };
00109 
00110 static const uint8_t vlc_tab_type30_huffbits[9] = {
00111     6, 3, 3, 2, 2, 3, 4, 5, 6
00112 };
00113 
00114 /* values in this table range from -1..9; adjust retrieved value by -1 */
00115 static const uint8_t vlc_tab_type34_huffcodes[10] = {
00116     0x18, 0x00, 0x01, 0x04, 0x05, 0x07, 0x03, 0x02, 0x06, 0x08
00117 };
00118 
00119 static const uint8_t vlc_tab_type34_huffbits[10] = {
00120     5, 4, 3, 3, 3, 3, 3, 3, 3, 5
00121 };
00122 
00123 /* values in this table range from -1..22; adjust retrieved value by -1 */
00124 static const uint16_t vlc_tab_fft_tone_offset_0_huffcodes[23] = {
00125     0x038e, 0x0001, 0x0000, 0x0022, 0x000a, 0x0006, 0x0012, 0x0002,
00126     0x001e, 0x003e, 0x0056, 0x0016, 0x000e, 0x0032, 0x0072, 0x0042,
00127     0x008e, 0x004e, 0x00f2, 0x002e, 0x0036, 0x00c2, 0x018e
00128 };
00129 
00130 static const uint8_t vlc_tab_fft_tone_offset_0_huffbits[23] = {
00131     10, 1, 2, 6, 4, 5, 6, 7, 6, 6, 7, 7, 8, 7, 8, 8, 9, 7, 8, 6, 6, 8, 10
00132 };
00133 
00134 /* values in this table range from -1..27; adjust retrieved value by -1 */
00135 static const uint16_t vlc_tab_fft_tone_offset_1_huffcodes[28] = {
00136     0x07a4, 0x0001, 0x0020, 0x0012, 0x001c, 0x0008, 0x0006, 0x0010,
00137     0x0000, 0x0014, 0x0004, 0x0032, 0x0070, 0x000c, 0x0002, 0x003a,
00138     0x001a, 0x002c, 0x002a, 0x0022, 0x0024, 0x000a, 0x0064, 0x0030,
00139     0x0062, 0x00a4, 0x01a4, 0x03a4
00140 };
00141 
00142 static const uint8_t vlc_tab_fft_tone_offset_1_huffbits[28] = {
00143     11, 1, 6, 6, 5, 4, 3, 6, 6, 5, 6, 6, 7, 6, 6, 6,
00144     6, 6, 6, 7, 8, 6, 7, 7, 7, 9, 10, 11
00145 };
00146 
00147 /* values in this table range from -1..31; adjust retrieved value by -1 */
00148 static const uint16_t vlc_tab_fft_tone_offset_2_huffcodes[32] = {
00149     0x1760, 0x0001, 0x0000, 0x0082, 0x000c, 0x0006, 0x0003, 0x0007,
00150     0x0008, 0x0004, 0x0010, 0x0012, 0x0022, 0x001a, 0x0000, 0x0020,
00151     0x000a, 0x0040, 0x004a, 0x006a, 0x002a, 0x0042, 0x0002, 0x0060,
00152     0x00aa, 0x00e0, 0x00c2, 0x01c2, 0x0160, 0x0360, 0x0760, 0x0f60
00153 };
00154 
00155 static const uint8_t vlc_tab_fft_tone_offset_2_huffbits[32] = {
00156     13, 2, 0, 8, 4, 3, 3, 3, 4, 4, 5, 5, 6, 5, 7, 7,
00157     7, 7, 7, 7, 8, 8, 8, 9, 8, 8, 9, 9, 10, 11, 13, 12
00158 };
00159 
00160 /* values in this table range from -1..34; adjust retrieved value by -1 */
00161 static const uint16_t vlc_tab_fft_tone_offset_3_huffcodes[35] = {
00162     0x33ea, 0x0005, 0x0000, 0x000c, 0x0000, 0x0006, 0x0003, 0x0008,
00163     0x0002, 0x0001, 0x0004, 0x0007, 0x001a, 0x000f, 0x001c, 0x002c,
00164     0x000a, 0x001d, 0x002d, 0x002a, 0x000d, 0x004c, 0x008c, 0x006a,
00165     0x00cd, 0x004d, 0x00ea, 0x020c, 0x030c, 0x010c, 0x01ea, 0x07ea,
00166     0x0bea, 0x03ea, 0x13ea
00167 };
00168 
00169 static const uint8_t vlc_tab_fft_tone_offset_3_huffbits[35] = {
00170     14, 4, 0, 10, 4, 3, 3, 4, 4, 3, 4, 4, 5, 4, 5, 6,
00171     6, 5, 6, 7, 7, 7, 8, 8, 8, 8, 9, 10, 10, 10, 10, 11,
00172     12, 13, 14
00173 };
00174 
00175 /* values in this table range from -1..37; adjust retrieved value by -1 */
00176 static const uint16_t vlc_tab_fft_tone_offset_4_huffcodes[38] = {
00177     0x5282, 0x0016, 0x0000, 0x0136, 0x0004, 0x0000, 0x0007, 0x000a,
00178     0x000e, 0x0003, 0x0001, 0x000d, 0x0006, 0x0009, 0x0012, 0x0005,
00179     0x0025, 0x0022, 0x0015, 0x0002, 0x0076, 0x0035, 0x0042, 0x00c2,
00180     0x0182, 0x00b6, 0x0036, 0x03c2, 0x0482, 0x01c2, 0x0682, 0x0882,
00181     0x0a82, 0x0082, 0x0282, 0x1282, 0x3282, 0x2282
00182 };
00183 
00184 static const uint8_t vlc_tab_fft_tone_offset_4_huffbits[38] = {
00185     15, 6, 0, 9, 3, 3, 3, 4, 4, 3, 4, 4, 5, 4, 5, 6,
00186     6, 6, 6, 8, 7, 6, 8, 9, 9, 8, 9, 10, 11, 10, 11, 12,
00187     12, 12, 14, 15, 14, 14
00188 };
00189 
00192 /* values in this table range from -1..27; adjust retrieved value by -1 */
00193 static const uint16_t fft_level_exp_alt_huffcodes[28] = {
00194     0x1ec6, 0x0006, 0x00c2, 0x0142, 0x0242, 0x0246, 0x00c6, 0x0046,
00195     0x0042, 0x0146, 0x00a2, 0x0062, 0x0026, 0x0016, 0x000e, 0x0005,
00196     0x0004, 0x0003, 0x0000, 0x0001, 0x000a, 0x0012, 0x0002, 0x0022,
00197     0x01c6, 0x02c6, 0x06c6, 0x0ec6
00198 };
00199 
00200 static const uint8_t fft_level_exp_alt_huffbits[28] = {
00201     13, 7, 8, 9, 10, 10, 10, 10, 10, 9, 8, 7, 6, 5, 4, 3,
00202     3, 2, 3, 3, 4, 5, 7, 8, 9, 11, 12, 13
00203 };
00204 
00205 /* values in this table range from -1..19; adjust retrieved value by -1 */
00206 static const uint16_t fft_level_exp_huffcodes[20] = {
00207     0x0f24, 0x0001, 0x0002, 0x0000, 0x0006, 0x0005, 0x0007, 0x000c,
00208     0x000b, 0x0014, 0x0013, 0x0004, 0x0003, 0x0023, 0x0064, 0x00a4,
00209     0x0024, 0x0124, 0x0324, 0x0724
00210 };
00211 
00212 static const uint8_t fft_level_exp_huffbits[20] = {
00213     12, 3, 3, 3, 3, 3, 3, 4, 4, 5, 5, 6, 6, 6, 7, 8, 9, 10, 11, 12
00214 };
00215 
00216 /* values in this table range from -1..6; adjust retrieved value by -1 */
00217 static const uint8_t fft_stereo_exp_huffcodes[7] = {
00218     0x3e, 0x01, 0x00, 0x02, 0x06, 0x0e, 0x1e
00219 };
00220 
00221 static const uint8_t fft_stereo_exp_huffbits[7] = {
00222     6, 1, 2, 3, 4, 5, 6
00223 };
00224 
00225 /* values in this table range from -1..8; adjust retrieved value by -1 */
00226 static const uint8_t fft_stereo_phase_huffcodes[9] = {
00227     0x35, 0x02, 0x00, 0x01, 0x0d, 0x15, 0x05, 0x09, 0x03
00228 };
00229 
00230 static const uint8_t fft_stereo_phase_huffbits[9] = {
00231     6, 2, 2, 4, 4, 6, 5, 4, 2
00232 };
00233 
00234 static const int fft_cutoff_index_table[4][2] = {
00235     { 1, 2 }, {-1, 0 }, {-1,-2 }, { 0, 0 }
00236 };
00237 
00238 static const int16_t fft_level_index_table[256] = {
00239     0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1,
00240     2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
00241     3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
00242     3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
00243     4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
00244     4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
00245     4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
00246     4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
00247     5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
00248     5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
00249     5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
00250     5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
00251     5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
00252     5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
00253     5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
00254     5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
00255 };
00256 
00257 static const uint8_t last_coeff[3] = {
00258     4, 7, 10
00259 };
00260 
00261 static const uint8_t coeff_per_sb_for_avg[3][30] = {
00262     { 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 },
00263     { 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 },
00264     { 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 }
00265 };
00266 
00267 static const uint32_t dequant_table[3][10][30] = {
00268     { { 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 },
00269       { 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 },
00270       { 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 },
00271       { 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 },
00272       { 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 },
00273       { 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 },
00274       { 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 },
00275       { 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 },
00276       { 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 },
00277       { 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 } },
00278     { { 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 },
00279       { 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 },
00280       { 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 },
00281       { 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 },
00282       { 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 },
00283       { 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 },
00284       { 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 },
00285       { 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 },
00286       { 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 },
00287       { 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 } },
00288     { { 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 },
00289       { 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 },
00290       { 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 },
00291       { 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 },
00292       { 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 },
00293       { 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 },
00294       { 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 },
00295       { 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 },
00296       { 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 },
00297       { 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 } }
00298 };
00299 
00300 static const uint8_t coeff_per_sb_for_dequant[3][30] = {
00301     { 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 },
00302     { 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 },
00303     { 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 }
00304 };
00305 
00306 /* first index is subband, 2nd index is 0, 1 or 3 (2 is unused) */
00307 static const int8_t tone_level_idx_offset_table[30][4] = {
00308     { -50, -50,  0, -50 },
00309     { -50, -50,  0, -50 },
00310     { -50,  -9,  0, -19 },
00311     { -16,  -6,  0, -12 },
00312     { -11,  -4,  0,  -8 },
00313     {  -8,  -3,  0,  -6 },
00314     {  -7,  -3,  0,  -5 },
00315     {  -6,  -2,  0,  -4 },
00316     {  -5,  -2,  0,  -3 },
00317     {  -4,  -1,  0,  -3 },
00318     {  -4,  -1,  0,  -2 },
00319     {  -3,  -1,  0,  -2 },
00320     {  -3,  -1,  0,  -2 },
00321     {  -3,  -1,  0,  -2 },
00322     {  -2,  -1,  0,  -1 },
00323     {  -2,  -1,  0,  -1 },
00324     {  -2,  -1,  0,  -1 },
00325     {  -2,   0,  0,  -1 },
00326     {  -2,   0,  0,  -1 },
00327     {  -1,   0,  0,  -1 },
00328     {  -1,   0,  0,  -1 },
00329     {  -1,   0,  0,  -1 },
00330     {  -1,   0,  0,  -1 },
00331     {  -1,   0,  0,  -1 },
00332     {  -1,   0,  0,  -1 },
00333     {  -1,   0,  0,  -1 },
00334     {  -1,   0,  0,   0 },
00335     {  -1,   0,  0,   0 },
00336     {  -1,   0,  0,   0 },
00337     {  -1,   0,  0,   0 }
00338 };
00339 
00340 /* all my samples have 1st index 0 or 1 */
00341 /* second index is subband, only indexes 0-29 seem to be used */
00342 static const int8_t coding_method_table[5][30] = {
00343     { 34, 30, 24, 24, 16, 16, 16, 16, 10, 10, 10, 10, 10, 10, 10,
00344       10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10
00345     },
00346     { 34, 30, 24, 24, 16, 16, 16, 16, 10, 10, 10, 10, 10, 10, 10,
00347       10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10
00348     },
00349     { 34, 30, 30, 30, 24, 24, 16, 16, 16, 16, 16, 16, 10, 10, 10,
00350       10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10
00351     },
00352     { 34, 34, 30, 30, 24, 24, 24, 24, 16, 16, 16, 16, 16, 16, 16,
00353       16, 16, 16, 16, 16, 16, 16, 10, 10, 10, 10, 10, 10, 10, 10
00354     },
00355     { 34, 34, 30, 30, 30, 30, 30, 30, 24, 24, 24, 24, 24, 24, 24,
00356       24, 24, 24, 24, 24, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16
00357     },
00358 };
00359 
00360 static const int vlc_stage3_values[60] = {
00361         0,     1,     2,     3,     4,     6,     8,    10,    12,    16,    20,    24,
00362        28,    36,    44,    52,    60,    76,    92,   108,   124,   156,   188,   220,
00363       252,   316,   380,   444,   508,   636,   764,   892,  1020,  1276,  1532,  1788,
00364      2044,  2556,  3068,  3580,  4092,  5116,  6140,  7164,  8188, 10236, 12284, 14332,
00365     16380, 20476, 24572, 28668, 32764, 40956, 49148, 57340, 65532, 81916, 98300,114684
00366 };
00367 
00368 static const float fft_tone_sample_table[4][16][5] = {
00369     { { .0100000000f,-.0037037037f,-.0020000000f,-.0069444444f,-.0018416207f },
00370       { .0416666667f, .0000000000f, .0000000000f,-.0208333333f,-.0123456791f },
00371       { .1250000000f, .0558035709f, .0330687836f,-.0164473690f,-.0097465888f },
00372       { .1562500000f, .0625000000f, .0370370370f,-.0062500000f,-.0037037037f },
00373       { .1996007860f, .0781250000f, .0462962948f, .0022727272f, .0013468013f },
00374       { .2000000000f, .0625000000f, .0370370373f, .0208333333f, .0074074073f },
00375       { .2127659619f, .0555555556f, .0329218097f, .0208333333f, .0123456791f },
00376       { .2173913121f, .0473484844f, .0280583613f, .0347222239f, .0205761325f },
00377       { .2173913121f, .0347222239f, .0205761325f, .0473484844f, .0280583613f },
00378       { .2127659619f, .0208333333f, .0123456791f, .0555555556f, .0329218097f },
00379       { .2000000000f, .0208333333f, .0074074073f, .0625000000f, .0370370370f },
00380       { .1996007860f, .0022727272f, .0013468013f, .0781250000f, .0462962948f },
00381       { .1562500000f,-.0062500000f,-.0037037037f, .0625000000f, .0370370370f },
00382       { .1250000000f,-.0164473690f,-.0097465888f, .0558035709f, .0330687836f },
00383       { .0416666667f,-.0208333333f,-.0123456791f, .0000000000f, .0000000000f },
00384       { .0100000000f,-.0069444444f,-.0018416207f,-.0037037037f,-.0020000000f } },
00385 
00386     { { .0050000000f,-.0200000000f, .0125000000f,-.3030303030f, .0020000000f },
00387       { .1041666642f, .0400000000f,-.0250000000f, .0333333333f,-.0200000000f },
00388       { .1250000000f, .0100000000f, .0142857144f,-.0500000007f,-.0200000000f },
00389       { .1562500000f,-.0006250000f,-.00049382716f,-.000625000f,-.00049382716f },
00390       { .1562500000f,-.0006250000f,-.00049382716f,-.000625000f,-.00049382716f },
00391       { .1250000000f,-.0500000000f,-.0200000000f, .0100000000f, .0142857144f },
00392       { .1041666667f, .0333333333f,-.0200000000f, .0400000000f,-.0250000000f },
00393       { .0050000000f,-.3030303030f, .0020000001f,-.0200000000f, .0125000000f },
00394       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
00395       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
00396       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
00397       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
00398       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
00399       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
00400       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
00401       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f } },
00402 
00403     { { .1428571492f, .1250000000f,-.0285714287f,-.0357142873f, .0208333333f },
00404       { .1818181818f, .0588235296f, .0333333333f, .0212765951f, .0100000000f },
00405       { .1818181818f, .0212765951f, .0100000000f, .0588235296f, .0333333333f },
00406       { .1428571492f,-.0357142873f, .0208333333f, .1250000000f,-.0285714287f },
00407       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
00408       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
00409       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
00410       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
00411       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
00412       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
00413       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
00414       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
00415       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
00416       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
00417       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
00418       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f } },
00419 
00420     { { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
00421       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
00422       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
00423       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
00424       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
00425       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
00426       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
00427       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
00428       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
00429       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
00430       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
00431       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
00432       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
00433       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
00434       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
00435       { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f } }
00436 };
00437 
00438 static const float fft_tone_level_table[2][64] = { {
00439 /* pow ~ (i > 46) ? 0 : (((((i & 1) ? 431 : 304) << (i >> 1))) / 1024.0); */
00440     0.17677669f, 0.42677650f, 0.60355347f, 0.85355347f,
00441     1.20710683f, 1.68359375f, 2.37500000f, 3.36718750f,
00442     4.75000000f, 6.73437500f, 9.50000000f, 13.4687500f,
00443     19.0000000f, 26.9375000f, 38.0000000f, 53.8750000f,
00444     76.0000000f, 107.750000f, 152.000000f, 215.500000f,
00445     304.000000f, 431.000000f, 608.000000f, 862.000000f,
00446     1216.00000f, 1724.00000f, 2432.00000f, 3448.00000f,
00447     4864.00000f, 6896.00000f, 9728.00000f, 13792.0000f,
00448     19456.0000f, 27584.0000f, 38912.0000f, 55168.0000f,
00449     77824.0000f, 110336.000f, 155648.000f, 220672.000f,
00450     311296.000f, 441344.000f, 622592.000f, 882688.000f,
00451     1245184.00f, 1765376.00f, 2490368.00f, 0.00000000f,
00452     0.00000000f, 0.00000000f, 0.00000000f, 0.00000000f,
00453     0.00000000f, 0.00000000f, 0.00000000f, 0.00000000f,
00454     0.00000000f, 0.00000000f, 0.00000000f, 0.00000000f,
00455     0.00000000f, 0.00000000f, 0.00000000f, 0.00000000f,
00456   }, {
00457 /* pow = (i > 45) ? 0 : ((((i & 1) ? 431 : 304) << (i >> 1)) / 512.0); */
00458     0.59375000f, 0.84179688f, 1.18750000f, 1.68359375f,
00459     2.37500000f, 3.36718750f, 4.75000000f, 6.73437500f,
00460     9.50000000f, 13.4687500f, 19.0000000f, 26.9375000f,
00461     38.0000000f, 53.8750000f, 76.0000000f, 107.750000f,
00462     152.000000f, 215.500000f, 304.000000f, 431.000000f,
00463     608.000000f, 862.000000f, 1216.00000f, 1724.00000f,
00464     2432.00000f, 3448.00000f, 4864.00000f, 6896.00000f,
00465     9728.00000f, 13792.0000f, 19456.0000f, 27584.0000f,
00466     38912.0000f, 55168.0000f, 77824.0000f, 110336.000f,
00467     155648.000f, 220672.000f, 311296.000f, 441344.000f,
00468     622592.000f, 882688.000f, 1245184.00f, 1765376.00f,
00469     2490368.00f, 3530752.00f, 0.00000000f, 0.00000000f,
00470     0.00000000f, 0.00000000f, 0.00000000f, 0.00000000f,
00471     0.00000000f, 0.00000000f, 0.00000000f, 0.00000000f,
00472     0.00000000f, 0.00000000f, 0.00000000f, 0.00000000f,
00473     0.00000000f, 0.00000000f, 0.00000000f, 0.00000000f
00474 } };
00475 
00476 static const float fft_tone_envelope_table[4][31] = {
00477     { .009607375f, .038060248f, .084265202f, .146446645f, .222214907f, .308658302f,
00478       .402454883f, .500000060f, .597545207f, .691341758f, .777785182f, .853553414f,
00479       .915734828f, .961939812f, .990392685f, 1.00000000f, .990392625f, .961939752f,
00480       .915734768f, .853553295f, .777785063f, .691341639f, .597545087f, .500000000f,
00481       .402454853f, .308658272f, .222214878f, .146446615f, .084265172f, .038060218f,
00482       .009607345f },
00483     { .038060248f, .146446645f, .308658302f, .500000060f, .691341758f, .853553414f,
00484       .961939812f, 1.00000000f, .961939752f, .853553295f, .691341639f, .500000000f,
00485       .308658272f, .146446615f, .038060218f, .000000000f, .000000000f, .000000000f,
00486       .000000000f, .000000000f, .000000000f, .000000000f, .000000000f, .000000000f,
00487       .000000000f, .000000000f, .000000000f, .000000000f, .000000000f, .000000000f,
00488       .000000000f },
00489     { .146446645f, .500000060f, .853553414f, 1.00000000f, .853553295f, .500000000f,
00490       .146446615f, .000000000f, .000000000f, .000000000f, .000000000f, .000000000f,
00491       .000000000f, .000000000f, .000000000f, .000000000f, .000000000f, .000000000f,
00492       .000000000f, .000000000f, .000000000f, .000000000f, .000000000f, .000000000f,
00493       .000000000f, .000000000f, .000000000f, .000000000f, .000000000f, .000000000f,
00494       .000000000f },
00495     { .500000060f, 1.00000000f, .500000000f, .000000000f, .000000000f, .000000000f,
00496       .000000000f, .000000000f, .000000000f, .000000000f, .000000000f, .000000000f,
00497       .000000000f, .000000000f, .000000000f, .000000000f, .000000000f, .000000000f,
00498       .000000000f, .000000000f, .000000000f, .000000000f, .000000000f, .000000000f,
00499       .000000000f, .000000000f, .000000000f, .000000000f, .000000000f, .000000000f,
00500       .000000000f }
00501 };
00502 
00503 static const float sb_noise_attenuation[32] = {
00504     0.0f, 0.0f, 0.3f, 0.4f, 0.5f, 0.7f, 1.0f, 1.0f,
00505     1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f,
00506     1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f,
00507     1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f,
00508 };
00509 
00510 static const uint8_t fft_subpackets[32] = {
00511     0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0,
00512     0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0
00513 };
00514 
00515 /* first index is joined_stereo, second index is 0 or 2 (1 is unused) */
00516 static const float dequant_1bit[2][3] = {
00517     {-0.920000f, 0.000000f, 0.920000f },
00518     {-0.890000f, 0.000000f, 0.890000f }
00519 };
00520 
00521 static const float type30_dequant[8] = {
00522    -1.0f,-0.625f,-0.291666656732559f,0.0f,
00523    0.25f,0.5f,0.75f,1.0f,
00524 };
00525 
00526 static const float type34_delta[10] = { // FIXME: covers 8 entries..
00527     -1.0f,-0.60947573184967f,-0.333333343267441f,-0.138071194291115f,0.0f,
00528     0.138071194291115f,0.333333343267441f,0.60947573184967f,1.0f,0.0f,
00529 };
00530 
00531 #endif /* AVCODEC_QDM2DATA_H */