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1 | /* |
2 | * MPEG Audio decoder | |
3 | * copyright (c) 2002 Fabrice Bellard | |
4 | * | |
5 | * This file is part of FFmpeg. | |
6 | * | |
7 | * FFmpeg is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU Lesser General Public | |
9 | * License as published by the Free Software Foundation; either | |
10 | * version 2.1 of the License, or (at your option) any later version. | |
11 | * | |
12 | * FFmpeg 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 GNU | |
15 | * Lesser General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU Lesser General Public | |
18 | * License along with FFmpeg; if not, write to the Free Software | |
19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
20 | */ | |
21 | ||
22 | /** | |
23 | * @file | |
24 | * mpeg audio layer decoder tables. | |
25 | */ | |
26 | ||
27 | #ifndef AVCODEC_MPEGAUDIODECTAB_H | |
28 | #define AVCODEC_MPEGAUDIODECTAB_H | |
29 | ||
30 | #include <stddef.h> | |
31 | #include <stdint.h> | |
32 | ||
33 | #include "mpegaudio.h" | |
34 | ||
35 | /*******************************************************/ | |
36 | /* layer 3 tables */ | |
37 | ||
38 | /* layer 3 huffman tables */ | |
39 | typedef struct HuffTable { | |
40 | int xsize; | |
41 | const uint8_t *bits; | |
42 | const uint16_t *codes; | |
43 | } HuffTable; | |
44 | ||
45 | /* layer3 scale factor size */ | |
46 | static const uint8_t slen_table[2][16] = { | |
47 | { 0, 0, 0, 0, 3, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4 }, | |
48 | { 0, 1, 2, 3, 0, 1, 2, 3, 1, 2, 3, 1, 2, 3, 2, 3 }, | |
49 | }; | |
50 | ||
51 | /* number of lsf scale factors for a given size */ | |
52 | static const uint8_t lsf_nsf_table[6][3][4] = { | |
53 | { { 6, 5, 5, 5 }, { 9, 9, 9, 9 }, { 6, 9, 9, 9 } }, | |
54 | { { 6, 5, 7, 3 }, { 9, 9, 12, 6 }, { 6, 9, 12, 6 } }, | |
55 | { { 11, 10, 0, 0 }, { 18, 18, 0, 0 }, { 15, 18, 0, 0 } }, | |
56 | { { 7, 7, 7, 0 }, { 12, 12, 12, 0 }, { 6, 15, 12, 0 } }, | |
57 | { { 6, 6, 6, 3 }, { 12, 9, 9, 6 }, { 6, 12, 9, 6 } }, | |
58 | { { 8, 8, 5, 0 }, { 15, 12, 9, 0 }, { 6, 18, 9, 0 } }, | |
59 | }; | |
60 | ||
61 | /* mpegaudio layer 3 huffman tables */ | |
62 | ||
63 | static const uint16_t mpa_huffcodes_1[4] = { | |
64 | 0x0001, 0x0001, 0x0001, 0x0000, | |
65 | }; | |
66 | ||
67 | static const uint8_t mpa_huffbits_1[4] = { | |
68 | 1, 3, 2, 3, | |
69 | }; | |
70 | ||
71 | static const uint16_t mpa_huffcodes_2[9] = { | |
72 | 0x0001, 0x0002, 0x0001, 0x0003, 0x0001, 0x0001, 0x0003, 0x0002, | |
73 | 0x0000, | |
74 | }; | |
75 | ||
76 | static const uint8_t mpa_huffbits_2[9] = { | |
77 | 1, 3, 6, 3, 3, 5, 5, 5, | |
78 | 6, | |
79 | }; | |
80 | ||
81 | static const uint16_t mpa_huffcodes_3[9] = { | |
82 | 0x0003, 0x0002, 0x0001, 0x0001, 0x0001, 0x0001, 0x0003, 0x0002, | |
83 | 0x0000, | |
84 | }; | |
85 | ||
86 | static const uint8_t mpa_huffbits_3[9] = { | |
87 | 2, 2, 6, 3, 2, 5, 5, 5, | |
88 | 6, | |
89 | }; | |
90 | ||
91 | static const uint16_t mpa_huffcodes_5[16] = { | |
92 | 0x0001, 0x0002, 0x0006, 0x0005, 0x0003, 0x0001, 0x0004, 0x0004, | |
93 | 0x0007, 0x0005, 0x0007, 0x0001, 0x0006, 0x0001, 0x0001, 0x0000, | |
94 | }; | |
95 | ||
96 | static const uint8_t mpa_huffbits_5[16] = { | |
97 | 1, 3, 6, 7, 3, 3, 6, 7, | |
98 | 6, 6, 7, 8, 7, 6, 7, 8, | |
99 | }; | |
100 | ||
101 | static const uint16_t mpa_huffcodes_6[16] = { | |
102 | 0x0007, 0x0003, 0x0005, 0x0001, 0x0006, 0x0002, 0x0003, 0x0002, | |
103 | 0x0005, 0x0004, 0x0004, 0x0001, 0x0003, 0x0003, 0x0002, 0x0000, | |
104 | }; | |
105 | ||
106 | static const uint8_t mpa_huffbits_6[16] = { | |
107 | 3, 3, 5, 7, 3, 2, 4, 5, | |
108 | 4, 4, 5, 6, 6, 5, 6, 7, | |
109 | }; | |
110 | ||
111 | static const uint16_t mpa_huffcodes_7[36] = { | |
112 | 0x0001, 0x0002, 0x000a, 0x0013, 0x0010, 0x000a, 0x0003, 0x0003, | |
113 | 0x0007, 0x000a, 0x0005, 0x0003, 0x000b, 0x0004, 0x000d, 0x0011, | |
114 | 0x0008, 0x0004, 0x000c, 0x000b, 0x0012, 0x000f, 0x000b, 0x0002, | |
115 | 0x0007, 0x0006, 0x0009, 0x000e, 0x0003, 0x0001, 0x0006, 0x0004, | |
116 | 0x0005, 0x0003, 0x0002, 0x0000, | |
117 | }; | |
118 | ||
119 | static const uint8_t mpa_huffbits_7[36] = { | |
120 | 1, 3, 6, 8, 8, 9, 3, 4, | |
121 | 6, 7, 7, 8, 6, 5, 7, 8, | |
122 | 8, 9, 7, 7, 8, 9, 9, 9, | |
123 | 7, 7, 8, 9, 9, 10, 8, 8, | |
124 | 9, 10, 10, 10, | |
125 | }; | |
126 | ||
127 | static const uint16_t mpa_huffcodes_8[36] = { | |
128 | 0x0003, 0x0004, 0x0006, 0x0012, 0x000c, 0x0005, 0x0005, 0x0001, | |
129 | 0x0002, 0x0010, 0x0009, 0x0003, 0x0007, 0x0003, 0x0005, 0x000e, | |
130 | 0x0007, 0x0003, 0x0013, 0x0011, 0x000f, 0x000d, 0x000a, 0x0004, | |
131 | 0x000d, 0x0005, 0x0008, 0x000b, 0x0005, 0x0001, 0x000c, 0x0004, | |
132 | 0x0004, 0x0001, 0x0001, 0x0000, | |
133 | }; | |
134 | ||
135 | static const uint8_t mpa_huffbits_8[36] = { | |
136 | 2, 3, 6, 8, 8, 9, 3, 2, | |
137 | 4, 8, 8, 8, 6, 4, 6, 8, | |
138 | 8, 9, 8, 8, 8, 9, 9, 10, | |
139 | 8, 7, 8, 9, 10, 10, 9, 8, | |
140 | 9, 9, 11, 11, | |
141 | }; | |
142 | ||
143 | static const uint16_t mpa_huffcodes_9[36] = { | |
144 | 0x0007, 0x0005, 0x0009, 0x000e, 0x000f, 0x0007, 0x0006, 0x0004, | |
145 | 0x0005, 0x0005, 0x0006, 0x0007, 0x0007, 0x0006, 0x0008, 0x0008, | |
146 | 0x0008, 0x0005, 0x000f, 0x0006, 0x0009, 0x000a, 0x0005, 0x0001, | |
147 | 0x000b, 0x0007, 0x0009, 0x0006, 0x0004, 0x0001, 0x000e, 0x0004, | |
148 | 0x0006, 0x0002, 0x0006, 0x0000, | |
149 | }; | |
150 | ||
151 | static const uint8_t mpa_huffbits_9[36] = { | |
152 | 3, 3, 5, 6, 8, 9, 3, 3, | |
153 | 4, 5, 6, 8, 4, 4, 5, 6, | |
154 | 7, 8, 6, 5, 6, 7, 7, 8, | |
155 | 7, 6, 7, 7, 8, 9, 8, 7, | |
156 | 8, 8, 9, 9, | |
157 | }; | |
158 | ||
159 | static const uint16_t mpa_huffcodes_10[64] = { | |
160 | 0x0001, 0x0002, 0x000a, 0x0017, 0x0023, 0x001e, 0x000c, 0x0011, | |
161 | 0x0003, 0x0003, 0x0008, 0x000c, 0x0012, 0x0015, 0x000c, 0x0007, | |
162 | 0x000b, 0x0009, 0x000f, 0x0015, 0x0020, 0x0028, 0x0013, 0x0006, | |
163 | 0x000e, 0x000d, 0x0016, 0x0022, 0x002e, 0x0017, 0x0012, 0x0007, | |
164 | 0x0014, 0x0013, 0x0021, 0x002f, 0x001b, 0x0016, 0x0009, 0x0003, | |
165 | 0x001f, 0x0016, 0x0029, 0x001a, 0x0015, 0x0014, 0x0005, 0x0003, | |
166 | 0x000e, 0x000d, 0x000a, 0x000b, 0x0010, 0x0006, 0x0005, 0x0001, | |
167 | 0x0009, 0x0008, 0x0007, 0x0008, 0x0004, 0x0004, 0x0002, 0x0000, | |
168 | }; | |
169 | ||
170 | static const uint8_t mpa_huffbits_10[64] = { | |
171 | 1, 3, 6, 8, 9, 9, 9, 10, | |
172 | 3, 4, 6, 7, 8, 9, 8, 8, | |
173 | 6, 6, 7, 8, 9, 10, 9, 9, | |
174 | 7, 7, 8, 9, 10, 10, 9, 10, | |
175 | 8, 8, 9, 10, 10, 10, 10, 10, | |
176 | 9, 9, 10, 10, 11, 11, 10, 11, | |
177 | 8, 8, 9, 10, 10, 10, 11, 11, | |
178 | 9, 8, 9, 10, 10, 11, 11, 11, | |
179 | }; | |
180 | ||
181 | static const uint16_t mpa_huffcodes_11[64] = { | |
182 | 0x0003, 0x0004, 0x000a, 0x0018, 0x0022, 0x0021, 0x0015, 0x000f, | |
183 | 0x0005, 0x0003, 0x0004, 0x000a, 0x0020, 0x0011, 0x000b, 0x000a, | |
184 | 0x000b, 0x0007, 0x000d, 0x0012, 0x001e, 0x001f, 0x0014, 0x0005, | |
185 | 0x0019, 0x000b, 0x0013, 0x003b, 0x001b, 0x0012, 0x000c, 0x0005, | |
186 | 0x0023, 0x0021, 0x001f, 0x003a, 0x001e, 0x0010, 0x0007, 0x0005, | |
187 | 0x001c, 0x001a, 0x0020, 0x0013, 0x0011, 0x000f, 0x0008, 0x000e, | |
188 | 0x000e, 0x000c, 0x0009, 0x000d, 0x000e, 0x0009, 0x0004, 0x0001, | |
189 | 0x000b, 0x0004, 0x0006, 0x0006, 0x0006, 0x0003, 0x0002, 0x0000, | |
190 | }; | |
191 | ||
192 | static const uint8_t mpa_huffbits_11[64] = { | |
193 | 2, 3, 5, 7, 8, 9, 8, 9, | |
194 | 3, 3, 4, 6, 8, 8, 7, 8, | |
195 | 5, 5, 6, 7, 8, 9, 8, 8, | |
196 | 7, 6, 7, 9, 8, 10, 8, 9, | |
197 | 8, 8, 8, 9, 9, 10, 9, 10, | |
198 | 8, 8, 9, 10, 10, 11, 10, 11, | |
199 | 8, 7, 7, 8, 9, 10, 10, 10, | |
200 | 8, 7, 8, 9, 10, 10, 10, 10, | |
201 | }; | |
202 | ||
203 | static const uint16_t mpa_huffcodes_12[64] = { | |
204 | 0x0009, 0x0006, 0x0010, 0x0021, 0x0029, 0x0027, 0x0026, 0x001a, | |
205 | 0x0007, 0x0005, 0x0006, 0x0009, 0x0017, 0x0010, 0x001a, 0x000b, | |
206 | 0x0011, 0x0007, 0x000b, 0x000e, 0x0015, 0x001e, 0x000a, 0x0007, | |
207 | 0x0011, 0x000a, 0x000f, 0x000c, 0x0012, 0x001c, 0x000e, 0x0005, | |
208 | 0x0020, 0x000d, 0x0016, 0x0013, 0x0012, 0x0010, 0x0009, 0x0005, | |
209 | 0x0028, 0x0011, 0x001f, 0x001d, 0x0011, 0x000d, 0x0004, 0x0002, | |
210 | 0x001b, 0x000c, 0x000b, 0x000f, 0x000a, 0x0007, 0x0004, 0x0001, | |
211 | 0x001b, 0x000c, 0x0008, 0x000c, 0x0006, 0x0003, 0x0001, 0x0000, | |
212 | }; | |
213 | ||
214 | static const uint8_t mpa_huffbits_12[64] = { | |
215 | 4, 3, 5, 7, 8, 9, 9, 9, | |
216 | 3, 3, 4, 5, 7, 7, 8, 8, | |
217 | 5, 4, 5, 6, 7, 8, 7, 8, | |
218 | 6, 5, 6, 6, 7, 8, 8, 8, | |
219 | 7, 6, 7, 7, 8, 8, 8, 9, | |
220 | 8, 7, 8, 8, 8, 9, 8, 9, | |
221 | 8, 7, 7, 8, 8, 9, 9, 10, | |
222 | 9, 8, 8, 9, 9, 9, 9, 10, | |
223 | }; | |
224 | ||
225 | static const uint16_t mpa_huffcodes_13[256] = { | |
226 | 0x0001, 0x0005, 0x000e, 0x0015, 0x0022, 0x0033, 0x002e, 0x0047, | |
227 | 0x002a, 0x0034, 0x0044, 0x0034, 0x0043, 0x002c, 0x002b, 0x0013, | |
228 | 0x0003, 0x0004, 0x000c, 0x0013, 0x001f, 0x001a, 0x002c, 0x0021, | |
229 | 0x001f, 0x0018, 0x0020, 0x0018, 0x001f, 0x0023, 0x0016, 0x000e, | |
230 | 0x000f, 0x000d, 0x0017, 0x0024, 0x003b, 0x0031, 0x004d, 0x0041, | |
231 | 0x001d, 0x0028, 0x001e, 0x0028, 0x001b, 0x0021, 0x002a, 0x0010, | |
232 | 0x0016, 0x0014, 0x0025, 0x003d, 0x0038, 0x004f, 0x0049, 0x0040, | |
233 | 0x002b, 0x004c, 0x0038, 0x0025, 0x001a, 0x001f, 0x0019, 0x000e, | |
234 | 0x0023, 0x0010, 0x003c, 0x0039, 0x0061, 0x004b, 0x0072, 0x005b, | |
235 | 0x0036, 0x0049, 0x0037, 0x0029, 0x0030, 0x0035, 0x0017, 0x0018, | |
236 | 0x003a, 0x001b, 0x0032, 0x0060, 0x004c, 0x0046, 0x005d, 0x0054, | |
237 | 0x004d, 0x003a, 0x004f, 0x001d, 0x004a, 0x0031, 0x0029, 0x0011, | |
238 | 0x002f, 0x002d, 0x004e, 0x004a, 0x0073, 0x005e, 0x005a, 0x004f, | |
239 | 0x0045, 0x0053, 0x0047, 0x0032, 0x003b, 0x0026, 0x0024, 0x000f, | |
240 | 0x0048, 0x0022, 0x0038, 0x005f, 0x005c, 0x0055, 0x005b, 0x005a, | |
241 | 0x0056, 0x0049, 0x004d, 0x0041, 0x0033, 0x002c, 0x002b, 0x002a, | |
242 | 0x002b, 0x0014, 0x001e, 0x002c, 0x0037, 0x004e, 0x0048, 0x0057, | |
243 | 0x004e, 0x003d, 0x002e, 0x0036, 0x0025, 0x001e, 0x0014, 0x0010, | |
244 | 0x0035, 0x0019, 0x0029, 0x0025, 0x002c, 0x003b, 0x0036, 0x0051, | |
245 | 0x0042, 0x004c, 0x0039, 0x0036, 0x0025, 0x0012, 0x0027, 0x000b, | |
246 | 0x0023, 0x0021, 0x001f, 0x0039, 0x002a, 0x0052, 0x0048, 0x0050, | |
247 | 0x002f, 0x003a, 0x0037, 0x0015, 0x0016, 0x001a, 0x0026, 0x0016, | |
248 | 0x0035, 0x0019, 0x0017, 0x0026, 0x0046, 0x003c, 0x0033, 0x0024, | |
249 | 0x0037, 0x001a, 0x0022, 0x0017, 0x001b, 0x000e, 0x0009, 0x0007, | |
250 | 0x0022, 0x0020, 0x001c, 0x0027, 0x0031, 0x004b, 0x001e, 0x0034, | |
251 | 0x0030, 0x0028, 0x0034, 0x001c, 0x0012, 0x0011, 0x0009, 0x0005, | |
252 | 0x002d, 0x0015, 0x0022, 0x0040, 0x0038, 0x0032, 0x0031, 0x002d, | |
253 | 0x001f, 0x0013, 0x000c, 0x000f, 0x000a, 0x0007, 0x0006, 0x0003, | |
254 | 0x0030, 0x0017, 0x0014, 0x0027, 0x0024, 0x0023, 0x0035, 0x0015, | |
255 | 0x0010, 0x0017, 0x000d, 0x000a, 0x0006, 0x0001, 0x0004, 0x0002, | |
256 | 0x0010, 0x000f, 0x0011, 0x001b, 0x0019, 0x0014, 0x001d, 0x000b, | |
257 | 0x0011, 0x000c, 0x0010, 0x0008, 0x0001, 0x0001, 0x0000, 0x0001, | |
258 | }; | |
259 | ||
260 | static const uint8_t mpa_huffbits_13[256] = { | |
261 | 1, 4, 6, 7, 8, 9, 9, 10, | |
262 | 9, 10, 11, 11, 12, 12, 13, 13, | |
263 | 3, 4, 6, 7, 8, 8, 9, 9, | |
264 | 9, 9, 10, 10, 11, 12, 12, 12, | |
265 | 6, 6, 7, 8, 9, 9, 10, 10, | |
266 | 9, 10, 10, 11, 11, 12, 13, 13, | |
267 | 7, 7, 8, 9, 9, 10, 10, 10, | |
268 | 10, 11, 11, 11, 11, 12, 13, 13, | |
269 | 8, 7, 9, 9, 10, 10, 11, 11, | |
270 | 10, 11, 11, 12, 12, 13, 13, 14, | |
271 | 9, 8, 9, 10, 10, 10, 11, 11, | |
272 | 11, 11, 12, 11, 13, 13, 14, 14, | |
273 | 9, 9, 10, 10, 11, 11, 11, 11, | |
274 | 11, 12, 12, 12, 13, 13, 14, 14, | |
275 | 10, 9, 10, 11, 11, 11, 12, 12, | |
276 | 12, 12, 13, 13, 13, 14, 16, 16, | |
277 | 9, 8, 9, 10, 10, 11, 11, 12, | |
278 | 12, 12, 12, 13, 13, 14, 15, 15, | |
279 | 10, 9, 10, 10, 11, 11, 11, 13, | |
280 | 12, 13, 13, 14, 14, 14, 16, 15, | |
281 | 10, 10, 10, 11, 11, 12, 12, 13, | |
282 | 12, 13, 14, 13, 14, 15, 16, 17, | |
283 | 11, 10, 10, 11, 12, 12, 12, 12, | |
284 | 13, 13, 13, 14, 15, 15, 15, 16, | |
285 | 11, 11, 11, 12, 12, 13, 12, 13, | |
286 | 14, 14, 15, 15, 15, 16, 16, 16, | |
287 | 12, 11, 12, 13, 13, 13, 14, 14, | |
288 | 14, 14, 14, 15, 16, 15, 16, 16, | |
289 | 13, 12, 12, 13, 13, 13, 15, 14, | |
290 | 14, 17, 15, 15, 15, 17, 16, 16, | |
291 | 12, 12, 13, 14, 14, 14, 15, 14, | |
292 | 15, 15, 16, 16, 19, 18, 19, 16, | |
293 | }; | |
294 | ||
295 | static const uint16_t mpa_huffcodes_15[256] = { | |
296 | 0x0007, 0x000c, 0x0012, 0x0035, 0x002f, 0x004c, 0x007c, 0x006c, | |
297 | 0x0059, 0x007b, 0x006c, 0x0077, 0x006b, 0x0051, 0x007a, 0x003f, | |
298 | 0x000d, 0x0005, 0x0010, 0x001b, 0x002e, 0x0024, 0x003d, 0x0033, | |
299 | 0x002a, 0x0046, 0x0034, 0x0053, 0x0041, 0x0029, 0x003b, 0x0024, | |
300 | 0x0013, 0x0011, 0x000f, 0x0018, 0x0029, 0x0022, 0x003b, 0x0030, | |
301 | 0x0028, 0x0040, 0x0032, 0x004e, 0x003e, 0x0050, 0x0038, 0x0021, | |
302 | 0x001d, 0x001c, 0x0019, 0x002b, 0x0027, 0x003f, 0x0037, 0x005d, | |
303 | 0x004c, 0x003b, 0x005d, 0x0048, 0x0036, 0x004b, 0x0032, 0x001d, | |
304 | 0x0034, 0x0016, 0x002a, 0x0028, 0x0043, 0x0039, 0x005f, 0x004f, | |
305 | 0x0048, 0x0039, 0x0059, 0x0045, 0x0031, 0x0042, 0x002e, 0x001b, | |
306 | 0x004d, 0x0025, 0x0023, 0x0042, 0x003a, 0x0034, 0x005b, 0x004a, | |
307 | 0x003e, 0x0030, 0x004f, 0x003f, 0x005a, 0x003e, 0x0028, 0x0026, | |
308 | 0x007d, 0x0020, 0x003c, 0x0038, 0x0032, 0x005c, 0x004e, 0x0041, | |
309 | 0x0037, 0x0057, 0x0047, 0x0033, 0x0049, 0x0033, 0x0046, 0x001e, | |
310 | 0x006d, 0x0035, 0x0031, 0x005e, 0x0058, 0x004b, 0x0042, 0x007a, | |
311 | 0x005b, 0x0049, 0x0038, 0x002a, 0x0040, 0x002c, 0x0015, 0x0019, | |
312 | 0x005a, 0x002b, 0x0029, 0x004d, 0x0049, 0x003f, 0x0038, 0x005c, | |
313 | 0x004d, 0x0042, 0x002f, 0x0043, 0x0030, 0x0035, 0x0024, 0x0014, | |
314 | 0x0047, 0x0022, 0x0043, 0x003c, 0x003a, 0x0031, 0x0058, 0x004c, | |
315 | 0x0043, 0x006a, 0x0047, 0x0036, 0x0026, 0x0027, 0x0017, 0x000f, | |
316 | 0x006d, 0x0035, 0x0033, 0x002f, 0x005a, 0x0052, 0x003a, 0x0039, | |
317 | 0x0030, 0x0048, 0x0039, 0x0029, 0x0017, 0x001b, 0x003e, 0x0009, | |
318 | 0x0056, 0x002a, 0x0028, 0x0025, 0x0046, 0x0040, 0x0034, 0x002b, | |
319 | 0x0046, 0x0037, 0x002a, 0x0019, 0x001d, 0x0012, 0x000b, 0x000b, | |
320 | 0x0076, 0x0044, 0x001e, 0x0037, 0x0032, 0x002e, 0x004a, 0x0041, | |
321 | 0x0031, 0x0027, 0x0018, 0x0010, 0x0016, 0x000d, 0x000e, 0x0007, | |
322 | 0x005b, 0x002c, 0x0027, 0x0026, 0x0022, 0x003f, 0x0034, 0x002d, | |
323 | 0x001f, 0x0034, 0x001c, 0x0013, 0x000e, 0x0008, 0x0009, 0x0003, | |
324 | 0x007b, 0x003c, 0x003a, 0x0035, 0x002f, 0x002b, 0x0020, 0x0016, | |
325 | 0x0025, 0x0018, 0x0011, 0x000c, 0x000f, 0x000a, 0x0002, 0x0001, | |
326 | 0x0047, 0x0025, 0x0022, 0x001e, 0x001c, 0x0014, 0x0011, 0x001a, | |
327 | 0x0015, 0x0010, 0x000a, 0x0006, 0x0008, 0x0006, 0x0002, 0x0000, | |
328 | }; | |
329 | ||
330 | static const uint8_t mpa_huffbits_15[256] = { | |
331 | 3, 4, 5, 7, 7, 8, 9, 9, | |
332 | 9, 10, 10, 11, 11, 11, 12, 13, | |
333 | 4, 3, 5, 6, 7, 7, 8, 8, | |
334 | 8, 9, 9, 10, 10, 10, 11, 11, | |
335 | 5, 5, 5, 6, 7, 7, 8, 8, | |
336 | 8, 9, 9, 10, 10, 11, 11, 11, | |
337 | 6, 6, 6, 7, 7, 8, 8, 9, | |
338 | 9, 9, 10, 10, 10, 11, 11, 11, | |
339 | 7, 6, 7, 7, 8, 8, 9, 9, | |
340 | 9, 9, 10, 10, 10, 11, 11, 11, | |
341 | 8, 7, 7, 8, 8, 8, 9, 9, | |
342 | 9, 9, 10, 10, 11, 11, 11, 12, | |
343 | 9, 7, 8, 8, 8, 9, 9, 9, | |
344 | 9, 10, 10, 10, 11, 11, 12, 12, | |
345 | 9, 8, 8, 9, 9, 9, 9, 10, | |
346 | 10, 10, 10, 10, 11, 11, 11, 12, | |
347 | 9, 8, 8, 9, 9, 9, 9, 10, | |
348 | 10, 10, 10, 11, 11, 12, 12, 12, | |
349 | 9, 8, 9, 9, 9, 9, 10, 10, | |
350 | 10, 11, 11, 11, 11, 12, 12, 12, | |
351 | 10, 9, 9, 9, 10, 10, 10, 10, | |
352 | 10, 11, 11, 11, 11, 12, 13, 12, | |
353 | 10, 9, 9, 9, 10, 10, 10, 10, | |
354 | 11, 11, 11, 11, 12, 12, 12, 13, | |
355 | 11, 10, 9, 10, 10, 10, 11, 11, | |
356 | 11, 11, 11, 11, 12, 12, 13, 13, | |
357 | 11, 10, 10, 10, 10, 11, 11, 11, | |
358 | 11, 12, 12, 12, 12, 12, 13, 13, | |
359 | 12, 11, 11, 11, 11, 11, 11, 11, | |
360 | 12, 12, 12, 12, 13, 13, 12, 13, | |
361 | 12, 11, 11, 11, 11, 11, 11, 12, | |
362 | 12, 12, 12, 12, 13, 13, 13, 13, | |
363 | }; | |
364 | ||
365 | static const uint16_t mpa_huffcodes_16[256] = { | |
366 | 0x0001, 0x0005, 0x000e, 0x002c, 0x004a, 0x003f, 0x006e, 0x005d, | |
367 | 0x00ac, 0x0095, 0x008a, 0x00f2, 0x00e1, 0x00c3, 0x0178, 0x0011, | |
368 | 0x0003, 0x0004, 0x000c, 0x0014, 0x0023, 0x003e, 0x0035, 0x002f, | |
369 | 0x0053, 0x004b, 0x0044, 0x0077, 0x00c9, 0x006b, 0x00cf, 0x0009, | |
370 | 0x000f, 0x000d, 0x0017, 0x0026, 0x0043, 0x003a, 0x0067, 0x005a, | |
371 | 0x00a1, 0x0048, 0x007f, 0x0075, 0x006e, 0x00d1, 0x00ce, 0x0010, | |
372 | 0x002d, 0x0015, 0x0027, 0x0045, 0x0040, 0x0072, 0x0063, 0x0057, | |
373 | 0x009e, 0x008c, 0x00fc, 0x00d4, 0x00c7, 0x0183, 0x016d, 0x001a, | |
374 | 0x004b, 0x0024, 0x0044, 0x0041, 0x0073, 0x0065, 0x00b3, 0x00a4, | |
375 | 0x009b, 0x0108, 0x00f6, 0x00e2, 0x018b, 0x017e, 0x016a, 0x0009, | |
376 | 0x0042, 0x001e, 0x003b, 0x0038, 0x0066, 0x00b9, 0x00ad, 0x0109, | |
377 | 0x008e, 0x00fd, 0x00e8, 0x0190, 0x0184, 0x017a, 0x01bd, 0x0010, | |
378 | 0x006f, 0x0036, 0x0034, 0x0064, 0x00b8, 0x00b2, 0x00a0, 0x0085, | |
379 | 0x0101, 0x00f4, 0x00e4, 0x00d9, 0x0181, 0x016e, 0x02cb, 0x000a, | |
380 | 0x0062, 0x0030, 0x005b, 0x0058, 0x00a5, 0x009d, 0x0094, 0x0105, | |
381 | 0x00f8, 0x0197, 0x018d, 0x0174, 0x017c, 0x0379, 0x0374, 0x0008, | |
382 | 0x0055, 0x0054, 0x0051, 0x009f, 0x009c, 0x008f, 0x0104, 0x00f9, | |
383 | 0x01ab, 0x0191, 0x0188, 0x017f, 0x02d7, 0x02c9, 0x02c4, 0x0007, | |
384 | 0x009a, 0x004c, 0x0049, 0x008d, 0x0083, 0x0100, 0x00f5, 0x01aa, | |
385 | 0x0196, 0x018a, 0x0180, 0x02df, 0x0167, 0x02c6, 0x0160, 0x000b, | |
386 | 0x008b, 0x0081, 0x0043, 0x007d, 0x00f7, 0x00e9, 0x00e5, 0x00db, | |
387 | 0x0189, 0x02e7, 0x02e1, 0x02d0, 0x0375, 0x0372, 0x01b7, 0x0004, | |
388 | 0x00f3, 0x0078, 0x0076, 0x0073, 0x00e3, 0x00df, 0x018c, 0x02ea, | |
389 | 0x02e6, 0x02e0, 0x02d1, 0x02c8, 0x02c2, 0x00df, 0x01b4, 0x0006, | |
390 | 0x00ca, 0x00e0, 0x00de, 0x00da, 0x00d8, 0x0185, 0x0182, 0x017d, | |
391 | 0x016c, 0x0378, 0x01bb, 0x02c3, 0x01b8, 0x01b5, 0x06c0, 0x0004, | |
392 | 0x02eb, 0x00d3, 0x00d2, 0x00d0, 0x0172, 0x017b, 0x02de, 0x02d3, | |
393 | 0x02ca, 0x06c7, 0x0373, 0x036d, 0x036c, 0x0d83, 0x0361, 0x0002, | |
394 | 0x0179, 0x0171, 0x0066, 0x00bb, 0x02d6, 0x02d2, 0x0166, 0x02c7, | |
395 | 0x02c5, 0x0362, 0x06c6, 0x0367, 0x0d82, 0x0366, 0x01b2, 0x0000, | |
396 | 0x000c, 0x000a, 0x0007, 0x000b, 0x000a, 0x0011, 0x000b, 0x0009, | |
397 | 0x000d, 0x000c, 0x000a, 0x0007, 0x0005, 0x0003, 0x0001, 0x0003, | |
398 | }; | |
399 | ||
400 | static const uint8_t mpa_huffbits_16[256] = { | |
401 | 1, 4, 6, 8, 9, 9, 10, 10, | |
402 | 11, 11, 11, 12, 12, 12, 13, 9, | |
403 | 3, 4, 6, 7, 8, 9, 9, 9, | |
404 | 10, 10, 10, 11, 12, 11, 12, 8, | |
405 | 6, 6, 7, 8, 9, 9, 10, 10, | |
406 | 11, 10, 11, 11, 11, 12, 12, 9, | |
407 | 8, 7, 8, 9, 9, 10, 10, 10, | |
408 | 11, 11, 12, 12, 12, 13, 13, 10, | |
409 | 9, 8, 9, 9, 10, 10, 11, 11, | |
410 | 11, 12, 12, 12, 13, 13, 13, 9, | |
411 | 9, 8, 9, 9, 10, 11, 11, 12, | |
412 | 11, 12, 12, 13, 13, 13, 14, 10, | |
413 | 10, 9, 9, 10, 11, 11, 11, 11, | |
414 | 12, 12, 12, 12, 13, 13, 14, 10, | |
415 | 10, 9, 10, 10, 11, 11, 11, 12, | |
416 | 12, 13, 13, 13, 13, 15, 15, 10, | |
417 | 10, 10, 10, 11, 11, 11, 12, 12, | |
418 | 13, 13, 13, 13, 14, 14, 14, 10, | |
419 | 11, 10, 10, 11, 11, 12, 12, 13, | |
420 | 13, 13, 13, 14, 13, 14, 13, 11, | |
421 | 11, 11, 10, 11, 12, 12, 12, 12, | |
422 | 13, 14, 14, 14, 15, 15, 14, 10, | |
423 | 12, 11, 11, 11, 12, 12, 13, 14, | |
424 | 14, 14, 14, 14, 14, 13, 14, 11, | |
425 | 12, 12, 12, 12, 12, 13, 13, 13, | |
426 | 13, 15, 14, 14, 14, 14, 16, 11, | |
427 | 14, 12, 12, 12, 13, 13, 14, 14, | |
428 | 14, 16, 15, 15, 15, 17, 15, 11, | |
429 | 13, 13, 11, 12, 14, 14, 13, 14, | |
430 | 14, 15, 16, 15, 17, 15, 14, 11, | |
431 | 9, 8, 8, 9, 9, 10, 10, 10, | |
432 | 11, 11, 11, 11, 11, 11, 11, 8, | |
433 | }; | |
434 | ||
435 | static const uint16_t mpa_huffcodes_24[256] = { | |
436 | 0x000f, 0x000d, 0x002e, 0x0050, 0x0092, 0x0106, 0x00f8, 0x01b2, | |
437 | 0x01aa, 0x029d, 0x028d, 0x0289, 0x026d, 0x0205, 0x0408, 0x0058, | |
438 | 0x000e, 0x000c, 0x0015, 0x0026, 0x0047, 0x0082, 0x007a, 0x00d8, | |
439 | 0x00d1, 0x00c6, 0x0147, 0x0159, 0x013f, 0x0129, 0x0117, 0x002a, | |
440 | 0x002f, 0x0016, 0x0029, 0x004a, 0x0044, 0x0080, 0x0078, 0x00dd, | |
441 | 0x00cf, 0x00c2, 0x00b6, 0x0154, 0x013b, 0x0127, 0x021d, 0x0012, | |
442 | 0x0051, 0x0027, 0x004b, 0x0046, 0x0086, 0x007d, 0x0074, 0x00dc, | |
443 | 0x00cc, 0x00be, 0x00b2, 0x0145, 0x0137, 0x0125, 0x010f, 0x0010, | |
444 | 0x0093, 0x0048, 0x0045, 0x0087, 0x007f, 0x0076, 0x0070, 0x00d2, | |
445 | 0x00c8, 0x00bc, 0x0160, 0x0143, 0x0132, 0x011d, 0x021c, 0x000e, | |
446 | 0x0107, 0x0042, 0x0081, 0x007e, 0x0077, 0x0072, 0x00d6, 0x00ca, | |
447 | 0x00c0, 0x00b4, 0x0155, 0x013d, 0x012d, 0x0119, 0x0106, 0x000c, | |
448 | 0x00f9, 0x007b, 0x0079, 0x0075, 0x0071, 0x00d7, 0x00ce, 0x00c3, | |
449 | 0x00b9, 0x015b, 0x014a, 0x0134, 0x0123, 0x0110, 0x0208, 0x000a, | |
450 | 0x01b3, 0x0073, 0x006f, 0x006d, 0x00d3, 0x00cb, 0x00c4, 0x00bb, | |
451 | 0x0161, 0x014c, 0x0139, 0x012a, 0x011b, 0x0213, 0x017d, 0x0011, | |
452 | 0x01ab, 0x00d4, 0x00d0, 0x00cd, 0x00c9, 0x00c1, 0x00ba, 0x00b1, | |
453 | 0x00a9, 0x0140, 0x012f, 0x011e, 0x010c, 0x0202, 0x0179, 0x0010, | |
454 | 0x014f, 0x00c7, 0x00c5, 0x00bf, 0x00bd, 0x00b5, 0x00ae, 0x014d, | |
455 | 0x0141, 0x0131, 0x0121, 0x0113, 0x0209, 0x017b, 0x0173, 0x000b, | |
456 | 0x029c, 0x00b8, 0x00b7, 0x00b3, 0x00af, 0x0158, 0x014b, 0x013a, | |
457 | 0x0130, 0x0122, 0x0115, 0x0212, 0x017f, 0x0175, 0x016e, 0x000a, | |
458 | 0x028c, 0x015a, 0x00ab, 0x00a8, 0x00a4, 0x013e, 0x0135, 0x012b, | |
459 | 0x011f, 0x0114, 0x0107, 0x0201, 0x0177, 0x0170, 0x016a, 0x0006, | |
460 | 0x0288, 0x0142, 0x013c, 0x0138, 0x0133, 0x012e, 0x0124, 0x011c, | |
461 | 0x010d, 0x0105, 0x0200, 0x0178, 0x0172, 0x016c, 0x0167, 0x0004, | |
462 | 0x026c, 0x012c, 0x0128, 0x0126, 0x0120, 0x011a, 0x0111, 0x010a, | |
463 | 0x0203, 0x017c, 0x0176, 0x0171, 0x016d, 0x0169, 0x0165, 0x0002, | |
464 | 0x0409, 0x0118, 0x0116, 0x0112, 0x010b, 0x0108, 0x0103, 0x017e, | |
465 | 0x017a, 0x0174, 0x016f, 0x016b, 0x0168, 0x0166, 0x0164, 0x0000, | |
466 | 0x002b, 0x0014, 0x0013, 0x0011, 0x000f, 0x000d, 0x000b, 0x0009, | |
467 | 0x0007, 0x0006, 0x0004, 0x0007, 0x0005, 0x0003, 0x0001, 0x0003, | |
468 | }; | |
469 | ||
470 | static const uint8_t mpa_huffbits_24[256] = { | |
471 | 4, 4, 6, 7, 8, 9, 9, 10, | |
472 | 10, 11, 11, 11, 11, 11, 12, 9, | |
473 | 4, 4, 5, 6, 7, 8, 8, 9, | |
474 | 9, 9, 10, 10, 10, 10, 10, 8, | |
475 | 6, 5, 6, 7, 7, 8, 8, 9, | |
476 | 9, 9, 9, 10, 10, 10, 11, 7, | |
477 | 7, 6, 7, 7, 8, 8, 8, 9, | |
478 | 9, 9, 9, 10, 10, 10, 10, 7, | |
479 | 8, 7, 7, 8, 8, 8, 8, 9, | |
480 | 9, 9, 10, 10, 10, 10, 11, 7, | |
481 | 9, 7, 8, 8, 8, 8, 9, 9, | |
482 | 9, 9, 10, 10, 10, 10, 10, 7, | |
483 | 9, 8, 8, 8, 8, 9, 9, 9, | |
484 | 9, 10, 10, 10, 10, 10, 11, 7, | |
485 | 10, 8, 8, 8, 9, 9, 9, 9, | |
486 | 10, 10, 10, 10, 10, 11, 11, 8, | |
487 | 10, 9, 9, 9, 9, 9, 9, 9, | |
488 | 9, 10, 10, 10, 10, 11, 11, 8, | |
489 | 10, 9, 9, 9, 9, 9, 9, 10, | |
490 | 10, 10, 10, 10, 11, 11, 11, 8, | |
491 | 11, 9, 9, 9, 9, 10, 10, 10, | |
492 | 10, 10, 10, 11, 11, 11, 11, 8, | |
493 | 11, 10, 9, 9, 9, 10, 10, 10, | |
494 | 10, 10, 10, 11, 11, 11, 11, 8, | |
495 | 11, 10, 10, 10, 10, 10, 10, 10, | |
496 | 10, 10, 11, 11, 11, 11, 11, 8, | |
497 | 11, 10, 10, 10, 10, 10, 10, 10, | |
498 | 11, 11, 11, 11, 11, 11, 11, 8, | |
499 | 12, 10, 10, 10, 10, 10, 10, 11, | |
500 | 11, 11, 11, 11, 11, 11, 11, 8, | |
501 | 8, 7, 7, 7, 7, 7, 7, 7, | |
502 | 7, 7, 7, 8, 8, 8, 8, 4, | |
503 | }; | |
504 | ||
505 | static const HuffTable mpa_huff_tables[16] = { | |
506 | { 1, NULL, NULL }, | |
507 | { 2, mpa_huffbits_1, mpa_huffcodes_1 }, | |
508 | { 3, mpa_huffbits_2, mpa_huffcodes_2 }, | |
509 | { 3, mpa_huffbits_3, mpa_huffcodes_3 }, | |
510 | { 4, mpa_huffbits_5, mpa_huffcodes_5 }, | |
511 | { 4, mpa_huffbits_6, mpa_huffcodes_6 }, | |
512 | { 6, mpa_huffbits_7, mpa_huffcodes_7 }, | |
513 | { 6, mpa_huffbits_8, mpa_huffcodes_8 }, | |
514 | { 6, mpa_huffbits_9, mpa_huffcodes_9 }, | |
515 | { 8, mpa_huffbits_10, mpa_huffcodes_10 }, | |
516 | { 8, mpa_huffbits_11, mpa_huffcodes_11 }, | |
517 | { 8, mpa_huffbits_12, mpa_huffcodes_12 }, | |
518 | { 16, mpa_huffbits_13, mpa_huffcodes_13 }, | |
519 | { 16, mpa_huffbits_15, mpa_huffcodes_15 }, | |
520 | { 16, mpa_huffbits_16, mpa_huffcodes_16 }, | |
521 | { 16, mpa_huffbits_24, mpa_huffcodes_24 }, | |
522 | }; | |
523 | ||
524 | static const uint8_t mpa_huff_data[32][2] = { | |
525 | { 0, 0 }, | |
526 | { 1, 0 }, | |
527 | { 2, 0 }, | |
528 | { 3, 0 }, | |
529 | { 0, 0 }, | |
530 | { 4, 0 }, | |
531 | { 5, 0 }, | |
532 | { 6, 0 }, | |
533 | { 7, 0 }, | |
534 | { 8, 0 }, | |
535 | { 9, 0 }, | |
536 | { 10, 0 }, | |
537 | { 11, 0 }, | |
538 | { 12, 0 }, | |
539 | { 0, 0 }, | |
540 | { 13, 0 }, | |
541 | { 14, 1 }, | |
542 | { 14, 2 }, | |
543 | { 14, 3 }, | |
544 | { 14, 4 }, | |
545 | { 14, 6 }, | |
546 | { 14, 8 }, | |
547 | { 14, 10 }, | |
548 | { 14, 13 }, | |
549 | { 15, 4 }, | |
550 | { 15, 5 }, | |
551 | { 15, 6 }, | |
552 | { 15, 7 }, | |
553 | { 15, 8 }, | |
554 | { 15, 9 }, | |
555 | { 15, 11 }, | |
556 | { 15, 13 }, | |
557 | }; | |
558 | ||
559 | ||
560 | /* huffman tables for quadrules */ | |
561 | static const uint8_t mpa_quad_codes[2][16] = { | |
562 | { 1, 5, 4, 5, 6, 5, 4, 4, 7, 3, 6, 0, 7, 2, 3, 1, }, | |
563 | { 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, }, | |
564 | }; | |
565 | ||
566 | static const uint8_t mpa_quad_bits[2][16] = { | |
567 | { 1, 4, 4, 5, 4, 6, 5, 6, 4, 5, 5, 6, 5, 6, 6, 6, }, | |
568 | { 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, }, | |
569 | }; | |
570 | ||
571 | /* band size tables */ | |
572 | static const uint8_t band_size_long[9][22] = { | |
573 | { 4, 4, 4, 4, 4, 4, 6, 6, 8, 8, 10, | |
574 | 12, 16, 20, 24, 28, 34, 42, 50, 54, 76, 158, }, /* 44100 */ | |
575 | { 4, 4, 4, 4, 4, 4, 6, 6, 6, 8, 10, | |
576 | 12, 16, 18, 22, 28, 34, 40, 46, 54, 54, 192, }, /* 48000 */ | |
577 | { 4, 4, 4, 4, 4, 4, 6, 6, 8, 10, 12, | |
578 | 16, 20, 24, 30, 38, 46, 56, 68, 84, 102, 26, }, /* 32000 */ | |
579 | { 6, 6, 6, 6, 6, 6, 8, 10, 12, 14, 16, | |
580 | 20, 24, 28, 32, 38, 46, 52, 60, 68, 58, 54, }, /* 22050 */ | |
581 | { 6, 6, 6, 6, 6, 6, 8, 10, 12, 14, 16, | |
582 | 18, 22, 26, 32, 38, 46, 52, 64, 70, 76, 36, }, /* 24000 */ | |
583 | { 6, 6, 6, 6, 6, 6, 8, 10, 12, 14, 16, | |
584 | 20, 24, 28, 32, 38, 46, 52, 60, 68, 58, 54, }, /* 16000 */ | |
585 | { 6, 6, 6, 6, 6, 6, 8, 10, 12, 14, 16, | |
586 | 20, 24, 28, 32, 38, 46, 52, 60, 68, 58, 54, }, /* 11025 */ | |
587 | { 6, 6, 6, 6, 6, 6, 8, 10, 12, 14, 16, | |
588 | 20, 24, 28, 32, 38, 46, 52, 60, 68, 58, 54, }, /* 12000 */ | |
589 | { 12, 12, 12, 12, 12, 12, 16, 20, 24, 28, 32, | |
590 | 40, 48, 56, 64, 76, 90, 2, 2, 2, 2, 2, }, /* 8000 */ | |
591 | }; | |
592 | ||
593 | static const uint8_t band_size_short[9][13] = { | |
594 | { 4, 4, 4, 4, 6, 8, 10, 12, 14, 18, 22, 30, 56, }, /* 44100 */ | |
595 | { 4, 4, 4, 4, 6, 6, 10, 12, 14, 16, 20, 26, 66, }, /* 48000 */ | |
596 | { 4, 4, 4, 4, 6, 8, 12, 16, 20, 26, 34, 42, 12, }, /* 32000 */ | |
597 | { 4, 4, 4, 6, 6, 8, 10, 14, 18, 26, 32, 42, 18, }, /* 22050 */ | |
598 | { 4, 4, 4, 6, 8, 10, 12, 14, 18, 24, 32, 44, 12, }, /* 24000 */ | |
599 | { 4, 4, 4, 6, 8, 10, 12, 14, 18, 24, 30, 40, 18, }, /* 16000 */ | |
600 | { 4, 4, 4, 6, 8, 10, 12, 14, 18, 24, 30, 40, 18, }, /* 11025 */ | |
601 | { 4, 4, 4, 6, 8, 10, 12, 14, 18, 24, 30, 40, 18, }, /* 12000 */ | |
602 | { 8, 8, 8, 12, 16, 20, 24, 28, 36, 2, 2, 2, 26, }, /* 8000 */ | |
603 | }; | |
604 | ||
605 | static const uint8_t mpa_pretab[2][22] = { | |
606 | { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, | |
607 | { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 3, 3, 3, 2, 0 }, | |
608 | }; | |
609 | ||
610 | /* table for alias reduction (XXX: store it as integer !) */ | |
611 | static const float ci_table[8] = { | |
612 | -0.6, -0.535, -0.33, -0.185, -0.095, -0.041, -0.0142, -0.0037, | |
613 | }; | |
614 | ||
615 | #endif /* AVCODEC_MPEGAUDIODECTAB_H */ |