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qdm2data.h
1 /* ScummVM - Graphic Adventure Engine
2  *
3  * ScummVM is the legal property of its developers, whose names
4  * are too numerous to list here. Please refer to the COPYRIGHT
5  * file distributed with this source distribution.
6  *
7  * This program is free software: you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation, either version 3 of the License, or
10  * (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program. If not, see <http://www.gnu.org/licenses/>.
19  *
20  */
21 
22 #ifndef AUDIO_QDM2DATA_H
23 #define AUDIO_QDM2DATA_H
24 
25 #include "common/scummsys.h"
26 
27 namespace Audio {
28 
30 
31 // values in this table range from -1..23; adjust retrieved value by -1
32 static const uint16 vlc_tab_level_huffcodes[24] = {
33  0x037c, 0x0004, 0x003c, 0x004c, 0x003a, 0x002c, 0x001c, 0x001a,
34  0x0024, 0x0014, 0x0001, 0x0002, 0x0000, 0x0003, 0x0007, 0x0005,
35  0x0006, 0x0008, 0x0009, 0x000a, 0x000c, 0x00fc, 0x007c, 0x017c
36 };
37 
38 static const byte vlc_tab_level_huffbits[24] = {
39  10, 6, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 3, 3, 3, 3, 4, 4, 5, 7, 8, 9, 10
40 };
41 
42 // values in this table range from -1..36; adjust retrieved value by -1
43 static const uint16 vlc_tab_diff_huffcodes[37] = {
44  0x1c57, 0x0004, 0x0000, 0x0001, 0x0003, 0x0002, 0x000f, 0x000e,
45  0x0007, 0x0016, 0x0037, 0x0027, 0x0026, 0x0066, 0x0006, 0x0097,
46  0x0046, 0x01c6, 0x0017, 0x0786, 0x0086, 0x0257, 0x00d7, 0x0357,
47  0x00c6, 0x0386, 0x0186, 0x0000, 0x0157, 0x0c57, 0x0057, 0x0000,
48  0x0b86, 0x0000, 0x1457, 0x0000, 0x0457
49 };
50 
51 static const byte vlc_tab_diff_huffbits[37] = {
52  13, 3, 3, 2, 3, 3, 4, 4, 6, 5, 6, 6, 7, 7, 8, 8,
53  8, 9, 8, 11, 9, 10, 8, 10, 9, 12, 10, 0, 10, 13, 11, 0,
54  12, 0, 13, 0, 13
55 };
56 
57 // values in this table range from -1..5; adjust retrieved value by -1
58 static const byte vlc_tab_run_huffcodes[6] = {
59  0x1f, 0x00, 0x01, 0x03, 0x07, 0x0f
60 };
61 
62 static const byte vlc_tab_run_huffbits[6] = {
63  5, 1, 2, 3, 4, 5
64 };
65 
66 // values in this table range from -1..19; adjust retrieved value by -1
67 static const uint16 vlc_tab_tone_level_idx_hi1_huffcodes[20] = {
68  0x5714, 0x000c, 0x0002, 0x0001, 0x0000, 0x0004, 0x0034, 0x0054,
69  0x0094, 0x0014, 0x0114, 0x0214, 0x0314, 0x0614, 0x0e14, 0x0f14,
70  0x2714, 0x0714, 0x1714, 0x3714
71 };
72 
73 static const byte vlc_tab_tone_level_idx_hi1_huffbits[20] = {
74  15, 4, 2, 1, 3, 5, 6, 7, 8, 10, 10, 11, 11, 12, 12, 12, 14, 14, 15, 14
75 };
76 
77 // values in this table range from -1..23; adjust retrieved value by -1
78 static const uint16 vlc_tab_tone_level_idx_mid_huffcodes[24] = {
79  0x0fea, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
80  0x0000, 0x0000, 0x0000, 0x0000, 0x03ea, 0x00ea, 0x002a, 0x001a,
81  0x0006, 0x0001, 0x0000, 0x0002, 0x000a, 0x006a, 0x01ea, 0x07ea
82 };
83 
84 static const byte vlc_tab_tone_level_idx_mid_huffbits[24] = {
85  12, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 11, 9, 7, 5, 3, 1, 2, 4, 6, 8, 10, 12
86 };
87 
88 // values in this table range from -1..23; adjust retrieved value by -1
89 static const uint16 vlc_tab_tone_level_idx_hi2_huffcodes[24] = {
90  0x0664, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0064, 0x00e4,
91  0x00a4, 0x0068, 0x0004, 0x0008, 0x0014, 0x0018, 0x0000, 0x0001,
92  0x0002, 0x0003, 0x000c, 0x0028, 0x0024, 0x0164, 0x0000, 0x0264
93 };
94 
95 static const byte vlc_tab_tone_level_idx_hi2_huffbits[24] = {
96  11, 0, 0, 0, 0, 0, 10, 8, 8, 7, 6, 6, 5, 5, 4, 2, 2, 2, 4, 7, 8, 9, 0, 11
97 };
98 
99 // values in this table range from -1..8; adjust retrieved value by -1
100 static const byte vlc_tab_type30_huffcodes[9] = {
101  0x3c, 0x06, 0x00, 0x01, 0x03, 0x02, 0x04, 0x0c, 0x1c
102 };
103 
104 static const byte vlc_tab_type30_huffbits[9] = {
105  6, 3, 3, 2, 2, 3, 4, 5, 6
106 };
107 
108 // values in this table range from -1..9; adjust retrieved value by -1
109 static const byte vlc_tab_type34_huffcodes[10] = {
110  0x18, 0x00, 0x01, 0x04, 0x05, 0x07, 0x03, 0x02, 0x06, 0x08
111 };
112 
113 static const byte vlc_tab_type34_huffbits[10] = {
114  5, 4, 3, 3, 3, 3, 3, 3, 3, 5
115 };
116 
117 // values in this table range from -1..22; adjust retrieved value by -1
118 static const uint16 vlc_tab_fft_tone_offset_0_huffcodes[23] = {
119  0x038e, 0x0001, 0x0000, 0x0022, 0x000a, 0x0006, 0x0012, 0x0002,
120  0x001e, 0x003e, 0x0056, 0x0016, 0x000e, 0x0032, 0x0072, 0x0042,
121  0x008e, 0x004e, 0x00f2, 0x002e, 0x0036, 0x00c2, 0x018e
122 };
123 
124 static const byte vlc_tab_fft_tone_offset_0_huffbits[23] = {
125  10, 1, 2, 6, 4, 5, 6, 7, 6, 6, 7, 7, 8, 7, 8, 8, 9, 7, 8, 6, 6, 8, 10
126 };
127 
128 // values in this table range from -1..27; adjust retrieved value by -1
129 static const uint16 vlc_tab_fft_tone_offset_1_huffcodes[28] = {
130  0x07a4, 0x0001, 0x0020, 0x0012, 0x001c, 0x0008, 0x0006, 0x0010,
131  0x0000, 0x0014, 0x0004, 0x0032, 0x0070, 0x000c, 0x0002, 0x003a,
132  0x001a, 0x002c, 0x002a, 0x0022, 0x0024, 0x000a, 0x0064, 0x0030,
133  0x0062, 0x00a4, 0x01a4, 0x03a4
134 };
135 
136 static const byte vlc_tab_fft_tone_offset_1_huffbits[28] = {
137  11, 1, 6, 6, 5, 4, 3, 6, 6, 5, 6, 6, 7, 6, 6, 6,
138  6, 6, 6, 7, 8, 6, 7, 7, 7, 9, 10, 11
139 };
140 
141 // values in this table range from -1..31; adjust retrieved value by -1
142 static const uint16 vlc_tab_fft_tone_offset_2_huffcodes[32] = {
143  0x1760, 0x0001, 0x0000, 0x0082, 0x000c, 0x0006, 0x0003, 0x0007,
144  0x0008, 0x0004, 0x0010, 0x0012, 0x0022, 0x001a, 0x0000, 0x0020,
145  0x000a, 0x0040, 0x004a, 0x006a, 0x002a, 0x0042, 0x0002, 0x0060,
146  0x00aa, 0x00e0, 0x00c2, 0x01c2, 0x0160, 0x0360, 0x0760, 0x0f60
147 };
148 
149 static const byte vlc_tab_fft_tone_offset_2_huffbits[32] = {
150  13, 2, 0, 8, 4, 3, 3, 3, 4, 4, 5, 5, 6, 5, 7, 7,
151  7, 7, 7, 7, 8, 8, 8, 9, 8, 8, 9, 9, 10, 11, 13, 12
152 };
153 
154 // values in this table range from -1..34; adjust retrieved value by -1
155 static const uint16 vlc_tab_fft_tone_offset_3_huffcodes[35] = {
156  0x33ea, 0x0005, 0x0000, 0x000c, 0x0000, 0x0006, 0x0003, 0x0008,
157  0x0002, 0x0001, 0x0004, 0x0007, 0x001a, 0x000f, 0x001c, 0x002c,
158  0x000a, 0x001d, 0x002d, 0x002a, 0x000d, 0x004c, 0x008c, 0x006a,
159  0x00cd, 0x004d, 0x00ea, 0x020c, 0x030c, 0x010c, 0x01ea, 0x07ea,
160  0x0bea, 0x03ea, 0x13ea
161 };
162 
163 static const byte vlc_tab_fft_tone_offset_3_huffbits[35] = {
164  14, 4, 0, 10, 4, 3, 3, 4, 4, 3, 4, 4, 5, 4, 5, 6,
165  6, 5, 6, 7, 7, 7, 8, 8, 8, 8, 9, 10, 10, 10, 10, 11,
166  12, 13, 14
167 };
168 
169 // values in this table range from -1..37; adjust retrieved value by -1
170 static const uint16 vlc_tab_fft_tone_offset_4_huffcodes[38] = {
171  0x5282, 0x0016, 0x0000, 0x0136, 0x0004, 0x0000, 0x0007, 0x000a,
172  0x000e, 0x0003, 0x0001, 0x000d, 0x0006, 0x0009, 0x0012, 0x0005,
173  0x0025, 0x0022, 0x0015, 0x0002, 0x0076, 0x0035, 0x0042, 0x00c2,
174  0x0182, 0x00b6, 0x0036, 0x03c2, 0x0482, 0x01c2, 0x0682, 0x0882,
175  0x0a82, 0x0082, 0x0282, 0x1282, 0x3282, 0x2282
176 };
177 
178 static const byte vlc_tab_fft_tone_offset_4_huffbits[38] = {
179  15, 6, 0, 9, 3, 3, 3, 4, 4, 3, 4, 4, 5, 4, 5, 6,
180  6, 6, 6, 8, 7, 6, 8, 9, 9, 8, 9, 10, 11, 10, 11, 12,
181  12, 12, 14, 15, 14, 14
182 };
183 
185 
186 // values in this table range from -1..27; adjust retrieved value by -1
187 static const uint16 fft_level_exp_alt_huffcodes[28] = {
188  0x1ec6, 0x0006, 0x00c2, 0x0142, 0x0242, 0x0246, 0x00c6, 0x0046,
189  0x0042, 0x0146, 0x00a2, 0x0062, 0x0026, 0x0016, 0x000e, 0x0005,
190  0x0004, 0x0003, 0x0000, 0x0001, 0x000a, 0x0012, 0x0002, 0x0022,
191  0x01c6, 0x02c6, 0x06c6, 0x0ec6
192 };
193 
194 static const byte fft_level_exp_alt_huffbits[28] = {
195  13, 7, 8, 9, 10, 10, 10, 10, 10, 9, 8, 7, 6, 5, 4, 3,
196  3, 2, 3, 3, 4, 5, 7, 8, 9, 11, 12, 13
197 };
198 
199 // values in this table range from -1..19; adjust retrieved value by -1
200 static const uint16 fft_level_exp_huffcodes[20] = {
201  0x0f24, 0x0001, 0x0002, 0x0000, 0x0006, 0x0005, 0x0007, 0x000c,
202  0x000b, 0x0014, 0x0013, 0x0004, 0x0003, 0x0023, 0x0064, 0x00a4,
203  0x0024, 0x0124, 0x0324, 0x0724
204 };
205 
206 static const byte fft_level_exp_huffbits[20] = {
207  12, 3, 3, 3, 3, 3, 3, 4, 4, 5, 5, 6, 6, 6, 7, 8, 9, 10, 11, 12
208 };
209 
210 // values in this table range from -1..6; adjust retrieved value by -1
211 static const byte fft_stereo_exp_huffcodes[7] = {
212  0x3e, 0x01, 0x00, 0x02, 0x06, 0x0e, 0x1e
213 };
214 
215 static const byte fft_stereo_exp_huffbits[7] = {
216  6, 1, 2, 3, 4, 5, 6
217 };
218 
219 // values in this table range from -1..8; adjust retrieved value by -1
220 static const byte fft_stereo_phase_huffcodes[9] = {
221  0x35, 0x02, 0x00, 0x01, 0x0d, 0x15, 0x05, 0x09, 0x03
222 };
223 
224 static const byte fft_stereo_phase_huffbits[9] = {
225  6, 2, 2, 4, 4, 6, 5, 4, 2
226 };
227 
228 static const int fft_cutoff_index_table[4][2] = {
229  { 1, 2 }, {-1, 0 }, {-1,-2 }, { 0, 0 }
230 };
231 
232 static const int16 fft_level_index_table[256] = {
233  0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1,
234  2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
235  3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
236  3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
237  4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
238  4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
239  4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
240  4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
241  5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
242  5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
243  5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
244  5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
245  5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
246  5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
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 };
250 
251 static const byte last_coeff[3] = {
252  4, 7, 10
253 };
254 
255 static const byte coeff_per_sb_for_avg[3][30] = {
256  { 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 },
257  { 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 },
258  { 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 }
259 };
260 
261 static const uint32 dequant_table[3][10][30] = {
262  { { 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 },
263  { 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 },
264  { 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 },
265  { 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 },
266  { 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 },
267  { 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 },
268  { 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 },
269  { 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 },
270  { 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 },
271  { 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 } },
272  { { 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 },
273  { 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 },
274  { 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 },
275  { 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 },
276  { 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 },
277  { 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 },
278  { 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 },
279  { 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 },
280  { 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 },
281  { 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 } },
282  { { 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 },
283  { 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 },
284  { 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 },
285  { 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 },
286  { 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 },
287  { 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 },
288  { 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 },
289  { 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 },
290  { 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 },
291  { 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 } }
292 };
293 
294 static const byte coeff_per_sb_for_dequant[3][30] = {
295  { 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 },
296  { 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 },
297  { 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 }
298 };
299 
300 // first index is subband, 2nd index is 0, 1 or 3 (2 is unused)
301 static const int8 tone_level_idx_offset_table[30][4] = {
302  { -50, -50, 0, -50 },
303  { -50, -50, 0, -50 },
304  { -50, -9, 0, -19 },
305  { -16, -6, 0, -12 },
306  { -11, -4, 0, -8 },
307  { -8, -3, 0, -6 },
308  { -7, -3, 0, -5 },
309  { -6, -2, 0, -4 },
310  { -5, -2, 0, -3 },
311  { -4, -1, 0, -3 },
312  { -4, -1, 0, -2 },
313  { -3, -1, 0, -2 },
314  { -3, -1, 0, -2 },
315  { -3, -1, 0, -2 },
316  { -2, -1, 0, -1 },
317  { -2, -1, 0, -1 },
318  { -2, -1, 0, -1 },
319  { -2, 0, 0, -1 },
320  { -2, 0, 0, -1 },
321  { -1, 0, 0, -1 },
322  { -1, 0, 0, -1 },
323  { -1, 0, 0, -1 },
324  { -1, 0, 0, -1 },
325  { -1, 0, 0, -1 },
326  { -1, 0, 0, -1 },
327  { -1, 0, 0, -1 },
328  { -1, 0, 0, 0 },
329  { -1, 0, 0, 0 },
330  { -1, 0, 0, 0 },
331  { -1, 0, 0, 0 }
332 };
333 
334 /* all my samples have 1st index 0 or 1 */
335 /* second index is subband, only indexes 0-29 seem to be used */
336 static const int8 coding_method_table[5][30] = {
337  { 34, 30, 24, 24, 16, 16, 16, 16, 10, 10, 10, 10, 10, 10, 10,
338  10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10
339  },
340  { 34, 30, 24, 24, 16, 16, 16, 16, 10, 10, 10, 10, 10, 10, 10,
341  10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10
342  },
343  { 34, 30, 30, 30, 24, 24, 16, 16, 16, 16, 16, 16, 10, 10, 10,
344  10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10
345  },
346  { 34, 34, 30, 30, 24, 24, 24, 24, 16, 16, 16, 16, 16, 16, 16,
347  16, 16, 16, 16, 16, 16, 16, 10, 10, 10, 10, 10, 10, 10, 10
348  },
349  { 34, 34, 30, 30, 30, 30, 30, 30, 24, 24, 24, 24, 24, 24, 24,
350  24, 24, 24, 24, 24, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16
351  },
352 };
353 
354 static const int vlc_stage3_values[60] = {
355  0, 1, 2, 3, 4, 6, 8, 10, 12, 16, 20, 24,
356  28, 36, 44, 52, 60, 76, 92, 108, 124, 156, 188, 220,
357  252, 316, 380, 444, 508, 636, 764, 892, 1020, 1276, 1532, 1788,
358  2044, 2556, 3068, 3580, 4092, 5116, 6140, 7164, 8188, 10236, 12284, 14332,
359  16380, 20476, 24572, 28668, 32764, 40956, 49148, 57340, 65532, 81916, 98300,114684
360 };
361 
362 static const float fft_tone_sample_table[4][16][5] = {
363  { { .0100000000f,-.0037037037f,-.0020000000f,-.0069444444f,-.0018416207f },
364  { .0416666667f, .0000000000f, .0000000000f,-.0208333333f,-.0123456791f },
365  { .1250000000f, .0558035709f, .0330687836f,-.0164473690f,-.0097465888f },
366  { .1562500000f, .0625000000f, .0370370370f,-.0062500000f,-.0037037037f },
367  { .1996007860f, .0781250000f, .0462962948f, .0022727272f, .0013468013f },
368  { .2000000000f, .0625000000f, .0370370373f, .0208333333f, .0074074073f },
369  { .2127659619f, .0555555556f, .0329218097f, .0208333333f, .0123456791f },
370  { .2173913121f, .0473484844f, .0280583613f, .0347222239f, .0205761325f },
371  { .2173913121f, .0347222239f, .0205761325f, .0473484844f, .0280583613f },
372  { .2127659619f, .0208333333f, .0123456791f, .0555555556f, .0329218097f },
373  { .2000000000f, .0208333333f, .0074074073f, .0625000000f, .0370370370f },
374  { .1996007860f, .0022727272f, .0013468013f, .0781250000f, .0462962948f },
375  { .1562500000f,-.0062500000f,-.0037037037f, .0625000000f, .0370370370f },
376  { .1250000000f,-.0164473690f,-.0097465888f, .0558035709f, .0330687836f },
377  { .0416666667f,-.0208333333f,-.0123456791f, .0000000000f, .0000000000f },
378  { .0100000000f,-.0069444444f,-.0018416207f,-.0037037037f,-.0020000000f } },
379 
380  { { .0050000000f,-.0200000000f, .0125000000f,-.3030303030f, .0020000000f },
381  { .1041666642f, .0400000000f,-.0250000000f, .0333333333f,-.0200000000f },
382  { .1250000000f, .0100000000f, .0142857144f,-.0500000007f,-.0200000000f },
383  { .1562500000f,-.0006250000f,-.00049382716f,-.000625000f,-.00049382716f },
384  { .1562500000f,-.0006250000f,-.00049382716f,-.000625000f,-.00049382716f },
385  { .1250000000f,-.0500000000f,-.0200000000f, .0100000000f, .0142857144f },
386  { .1041666667f, .0333333333f,-.0200000000f, .0400000000f,-.0250000000f },
387  { .0050000000f,-.3030303030f, .0020000001f,-.0200000000f, .0125000000f },
388  { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
389  { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
390  { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
391  { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
392  { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
393  { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
394  { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
395  { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f } },
396 
397  { { .1428571492f, .1250000000f,-.0285714287f,-.0357142873f, .0208333333f },
398  { .1818181818f, .0588235296f, .0333333333f, .0212765951f, .0100000000f },
399  { .1818181818f, .0212765951f, .0100000000f, .0588235296f, .0333333333f },
400  { .1428571492f,-.0357142873f, .0208333333f, .1250000000f,-.0285714287f },
401  { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
402  { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
403  { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
404  { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
405  { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
406  { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
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 
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  { .0000000000f, .0000000000f, .0000000000f, .0000000000f, .0000000000f },
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 };
431 
432 static const float fft_tone_level_table[2][64] = { {
433 // pow ~ (i > 46) ? 0 : (((((i & 1) ? 431 : 304) << (i >> 1))) / 1024.0);
434  0.17677669f, 0.42677650f, 0.60355347f, 0.85355347f,
435  1.20710683f, 1.68359375f, 2.37500000f, 3.36718750f,
436  4.75000000f, 6.73437500f, 9.50000000f, 13.4687500f,
437  19.0000000f, 26.9375000f, 38.0000000f, 53.8750000f,
438  76.0000000f, 107.750000f, 152.000000f, 215.500000f,
439  304.000000f, 431.000000f, 608.000000f, 862.000000f,
440  1216.00000f, 1724.00000f, 2432.00000f, 3448.00000f,
441  4864.00000f, 6896.00000f, 9728.00000f, 13792.0000f,
442  19456.0000f, 27584.0000f, 38912.0000f, 55168.0000f,
443  77824.0000f, 110336.000f, 155648.000f, 220672.000f,
444  311296.000f, 441344.000f, 622592.000f, 882688.000f,
445  1245184.00f, 1765376.00f, 2490368.00f, 0.00000000f,
446  0.00000000f, 0.00000000f, 0.00000000f, 0.00000000f,
447  0.00000000f, 0.00000000f, 0.00000000f, 0.00000000f,
448  0.00000000f, 0.00000000f, 0.00000000f, 0.00000000f,
449  0.00000000f, 0.00000000f, 0.00000000f, 0.00000000f,
450  }, {
451 // pow = (i > 45) ? 0 : ((((i & 1) ? 431 : 304) << (i >> 1)) / 512.0);
452  0.59375000f, 0.84179688f, 1.18750000f, 1.68359375f,
453  2.37500000f, 3.36718750f, 4.75000000f, 6.73437500f,
454  9.50000000f, 13.4687500f, 19.0000000f, 26.9375000f,
455  38.0000000f, 53.8750000f, 76.0000000f, 107.750000f,
456  152.000000f, 215.500000f, 304.000000f, 431.000000f,
457  608.000000f, 862.000000f, 1216.00000f, 1724.00000f,
458  2432.00000f, 3448.00000f, 4864.00000f, 6896.00000f,
459  9728.00000f, 13792.0000f, 19456.0000f, 27584.0000f,
460  38912.0000f, 55168.0000f, 77824.0000f, 110336.000f,
461  155648.000f, 220672.000f, 311296.000f, 441344.000f,
462  622592.000f, 882688.000f, 1245184.00f, 1765376.00f,
463  2490368.00f, 3530752.00f, 0.00000000f, 0.00000000f,
464  0.00000000f, 0.00000000f, 0.00000000f, 0.00000000f,
465  0.00000000f, 0.00000000f, 0.00000000f, 0.00000000f,
466  0.00000000f, 0.00000000f, 0.00000000f, 0.00000000f,
467  0.00000000f, 0.00000000f, 0.00000000f, 0.00000000f
468 } };
469 
470 static const float fft_tone_envelope_table[4][31] = {
471  { .009607375f, .038060248f, .084265202f, .146446645f, .222214907f, .308658302f,
472  .402454883f, .500000060f, .597545207f, .691341758f, .777785182f, .853553414f,
473  .915734828f, .961939812f, .990392685f, 1.00000000f, .990392625f, .961939752f,
474  .915734768f, .853553295f, .777785063f, .691341639f, .597545087f, .500000000f,
475  .402454853f, .308658272f, .222214878f, .146446615f, .084265172f, .038060218f,
476  .009607345f },
477  { .038060248f, .146446645f, .308658302f, .500000060f, .691341758f, .853553414f,
478  .961939812f, 1.00000000f, .961939752f, .853553295f, .691341639f, .500000000f,
479  .308658272f, .146446615f, .038060218f, .000000000f, .000000000f, .000000000f,
480  .000000000f, .000000000f, .000000000f, .000000000f, .000000000f, .000000000f,
481  .000000000f, .000000000f, .000000000f, .000000000f, .000000000f, .000000000f,
482  .000000000f },
483  { .146446645f, .500000060f, .853553414f, 1.00000000f, .853553295f, .500000000f,
484  .146446615f, .000000000f, .000000000f, .000000000f, .000000000f, .000000000f,
485  .000000000f, .000000000f, .000000000f, .000000000f, .000000000f, .000000000f,
486  .000000000f, .000000000f, .000000000f, .000000000f, .000000000f, .000000000f,
487  .000000000f, .000000000f, .000000000f, .000000000f, .000000000f, .000000000f,
488  .000000000f },
489  { .500000060f, 1.00000000f, .500000000f, .000000000f, .000000000f, .000000000f,
490  .000000000f, .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 };
496 
497 static const float sb_noise_attenuation[32] = {
498  0.0f, 0.0f, 0.3f, 0.4f, 0.5f, 0.7f, 1.0f, 1.0f,
499  1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f,
500  1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f,
501  1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f,
502 };
503 
504 static const byte fft_subpackets[32] = {
505  0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0,
506  0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0
507 };
508 
509 // first index is joined_stereo, second index is 0 or 2 (1 is unused)
510 static const float dequant_1bit[2][3] = {
511  {-0.920000f, 0.000000f, 0.920000f },
512  {-0.890000f, 0.000000f, 0.890000f }
513 };
514 
515 static const float type30_dequant[8] = {
516  -1.0f,-0.625f,-0.291666656732559f,0.0f,
517  0.25f,0.5f,0.75f,1.0f,
518 };
519 
520 static const float type34_delta[10] = { // FIXME: covers 8 entries..
521  -1.0f,-0.60947573184967f,-0.333333343267441f,-0.138071194291115f,0.0f,
522  0.138071194291115f,0.333333343267441f,0.60947573184967f,1.0f,0.0f,
523 };
524 
525 } // End of namespace Audio
526 
527 #endif
Audio
Definition: system.h:38