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author | Sean Bartell <wingedtachikoma@gmail.com> | 2011-06-25 21:32:25 -0400 |
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committer | Nils Wallménius <nils@rockbox.org> | 2012-04-25 22:13:20 +0200 |
commit | f40bfc9267b13b54e6379dfe7539447662879d24 (patch) | |
tree | 9b20069d5e62809ff434061ad730096836f916f2 /lib/rbcodec/codecs/liba52/tables.h | |
parent | a0009907de7a0107d49040d8a180f140e2eff299 (diff) | |
download | rockbox-f40bfc9267b13b54e6379dfe7539447662879d24.tar.gz rockbox-f40bfc9267b13b54e6379dfe7539447662879d24.zip |
Add codecs to librbcodec.
Change-Id: Id7f4717d51ed02d67cb9f9cb3c0ada4a81843f97
Reviewed-on: http://gerrit.rockbox.org/137
Reviewed-by: Nils Wallménius <nils@rockbox.org>
Tested-by: Nils Wallménius <nils@rockbox.org>
Diffstat (limited to 'lib/rbcodec/codecs/liba52/tables.h')
-rw-r--r-- | lib/rbcodec/codecs/liba52/tables.h | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/lib/rbcodec/codecs/liba52/tables.h b/lib/rbcodec/codecs/liba52/tables.h new file mode 100644 index 0000000000..b067c63f69 --- /dev/null +++ b/lib/rbcodec/codecs/liba52/tables.h | |||
@@ -0,0 +1,246 @@ | |||
1 | /* | ||
2 | * tables.h | ||
3 | * Copyright (C) 2000-2003 Michel Lespinasse <walken@zoy.org> | ||
4 | * Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca> | ||
5 | * | ||
6 | * This file is part of a52dec, a free ATSC A-52 stream decoder. | ||
7 | * See http://liba52.sourceforge.net/ for updates. | ||
8 | * | ||
9 | * a52dec is free software; you can redistribute it and/or modify | ||
10 | * it under the terms of the GNU General Public License as published by | ||
11 | * the Free Software Foundation; either version 2 of the License, or | ||
12 | * (at your option) any later version. | ||
13 | * | ||
14 | * a52dec is distributed in the hope that it will be useful, | ||
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
17 | * GNU General Public License for more details. | ||
18 | * | ||
19 | * You should have received a copy of the GNU General Public License | ||
20 | * along with this program; if not, write to the Free Software | ||
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
22 | */ | ||
23 | |||
24 | static const int8_t exp_1[128] = { | ||
25 | -2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, | ||
26 | -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, | ||
27 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||
28 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, | ||
29 | 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, | ||
30 | 25,25,25 | ||
31 | }; | ||
32 | static const int8_t exp_2[128] = { | ||
33 | -2,-2,-2,-2,-2,-1,-1,-1,-1,-1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, | ||
34 | -2,-2,-2,-2,-2,-1,-1,-1,-1,-1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, | ||
35 | -2,-2,-2,-2,-2,-1,-1,-1,-1,-1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, | ||
36 | -2,-2,-2,-2,-2,-1,-1,-1,-1,-1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, | ||
37 | -2,-2,-2,-2,-2,-1,-1,-1,-1,-1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, | ||
38 | 25,25,25 | ||
39 | }; | ||
40 | static const int8_t exp_3[128] = { | ||
41 | -2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2, | ||
42 | -2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2, | ||
43 | -2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2, | ||
44 | -2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2, | ||
45 | -2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2, | ||
46 | 25,25,25 | ||
47 | }; | ||
48 | |||
49 | #define Q(x) ROUND (32768.0 * x) | ||
50 | |||
51 | #define Q0 Q (-2/3) | ||
52 | #define Q1 Q (0) | ||
53 | #define Q2 Q (2/3) | ||
54 | |||
55 | static const quantizer_t q_1_0[32] = { | ||
56 | Q0, Q0, Q0, Q0, Q0, Q0, Q0, Q0, Q0, | ||
57 | Q1, Q1, Q1, Q1, Q1, Q1, Q1, Q1, Q1, | ||
58 | Q2, Q2, Q2, Q2, Q2, Q2, Q2, Q2, Q2, | ||
59 | 0, 0, 0, 0, 0 | ||
60 | }; | ||
61 | |||
62 | static const quantizer_t q_1_1[32] = { | ||
63 | Q0, Q0, Q0, Q1, Q1, Q1, Q2, Q2, Q2, | ||
64 | Q0, Q0, Q0, Q1, Q1, Q1, Q2, Q2, Q2, | ||
65 | Q0, Q0, Q0, Q1, Q1, Q1, Q2, Q2, Q2, | ||
66 | 0, 0, 0, 0, 0 | ||
67 | }; | ||
68 | |||
69 | static const quantizer_t q_1_2[32] = { | ||
70 | Q0, Q1, Q2, Q0, Q1, Q2, Q0, Q1, Q2, | ||
71 | Q0, Q1, Q2, Q0, Q1, Q2, Q0, Q1, Q2, | ||
72 | Q0, Q1, Q2, Q0, Q1, Q2, Q0, Q1, Q2, | ||
73 | 0, 0, 0, 0, 0 | ||
74 | }; | ||
75 | |||
76 | #undef Q0 | ||
77 | #undef Q1 | ||
78 | #undef Q2 | ||
79 | |||
80 | #define Q0 Q (-4/5) | ||
81 | #define Q1 Q (-2/5) | ||
82 | #define Q2 Q (0) | ||
83 | #define Q3 Q (2/5) | ||
84 | #define Q4 Q (4/5) | ||
85 | |||
86 | static const quantizer_t q_2_0[128] = { | ||
87 | Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0, | ||
88 | Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1, | ||
89 | Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2, | ||
90 | Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3, | ||
91 | Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4, | ||
92 | 0,0,0 | ||
93 | }; | ||
94 | |||
95 | static const quantizer_t q_2_1[128] = { | ||
96 | Q0,Q0,Q0,Q0,Q0,Q1,Q1,Q1,Q1,Q1,Q2,Q2,Q2,Q2,Q2,Q3,Q3,Q3,Q3,Q3,Q4,Q4,Q4,Q4,Q4, | ||
97 | Q0,Q0,Q0,Q0,Q0,Q1,Q1,Q1,Q1,Q1,Q2,Q2,Q2,Q2,Q2,Q3,Q3,Q3,Q3,Q3,Q4,Q4,Q4,Q4,Q4, | ||
98 | Q0,Q0,Q0,Q0,Q0,Q1,Q1,Q1,Q1,Q1,Q2,Q2,Q2,Q2,Q2,Q3,Q3,Q3,Q3,Q3,Q4,Q4,Q4,Q4,Q4, | ||
99 | Q0,Q0,Q0,Q0,Q0,Q1,Q1,Q1,Q1,Q1,Q2,Q2,Q2,Q2,Q2,Q3,Q3,Q3,Q3,Q3,Q4,Q4,Q4,Q4,Q4, | ||
100 | Q0,Q0,Q0,Q0,Q0,Q1,Q1,Q1,Q1,Q1,Q2,Q2,Q2,Q2,Q2,Q3,Q3,Q3,Q3,Q3,Q4,Q4,Q4,Q4,Q4, | ||
101 | 0,0,0 | ||
102 | }; | ||
103 | |||
104 | static const quantizer_t q_2_2[128] = { | ||
105 | Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4, | ||
106 | Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4, | ||
107 | Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4, | ||
108 | Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4, | ||
109 | Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4, | ||
110 | 0,0,0 | ||
111 | }; | ||
112 | |||
113 | #undef Q0 | ||
114 | #undef Q1 | ||
115 | #undef Q2 | ||
116 | #undef Q3 | ||
117 | #undef Q4 | ||
118 | |||
119 | static const quantizer_t q_3[8] = { | ||
120 | Q (-6/7), Q (-4/7), Q (-2/7), Q (0), Q (2/7), Q (4/7), Q (6/7), 0 | ||
121 | }; | ||
122 | |||
123 | #define Q0 Q (-10/11) | ||
124 | #define Q1 Q (-8/11) | ||
125 | #define Q2 Q (-6/11) | ||
126 | #define Q3 Q (-4/11) | ||
127 | #define Q4 Q (-2/11) | ||
128 | #define Q5 Q (0) | ||
129 | #define Q6 Q (2/11) | ||
130 | #define Q7 Q (4/11) | ||
131 | #define Q8 Q (6/11) | ||
132 | #define Q9 Q (8/11) | ||
133 | #define QA Q (10/11) | ||
134 | |||
135 | static const quantizer_t q_4_0[128] = { | ||
136 | Q0, Q0, Q0, Q0, Q0, Q0, Q0, Q0, Q0, Q0, Q0, | ||
137 | Q1, Q1, Q1, Q1, Q1, Q1, Q1, Q1, Q1, Q1, Q1, | ||
138 | Q2, Q2, Q2, Q2, Q2, Q2, Q2, Q2, Q2, Q2, Q2, | ||
139 | Q3, Q3, Q3, Q3, Q3, Q3, Q3, Q3, Q3, Q3, Q3, | ||
140 | Q4, Q4, Q4, Q4, Q4, Q4, Q4, Q4, Q4, Q4, Q4, | ||
141 | Q5, Q5, Q5, Q5, Q5, Q5, Q5, Q5, Q5, Q5, Q5, | ||
142 | Q6, Q6, Q6, Q6, Q6, Q6, Q6, Q6, Q6, Q6, Q6, | ||
143 | Q7, Q7, Q7, Q7, Q7, Q7, Q7, Q7, Q7, Q7, Q7, | ||
144 | Q8, Q8, Q8, Q8, Q8, Q8, Q8, Q8, Q8, Q8, Q8, | ||
145 | Q9, Q9, Q9, Q9, Q9, Q9, Q9, Q9, Q9, Q9, Q9, | ||
146 | QA, QA, QA, QA, QA, QA, QA, QA, QA, QA, QA, | ||
147 | 0, 0, 0, 0, 0, 0, 0 | ||
148 | }; | ||
149 | |||
150 | static const quantizer_t q_4_1[128] = { | ||
151 | Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, QA, | ||
152 | Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, QA, | ||
153 | Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, QA, | ||
154 | Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, QA, | ||
155 | Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, QA, | ||
156 | Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, QA, | ||
157 | Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, QA, | ||
158 | Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, QA, | ||
159 | Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, QA, | ||
160 | Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, QA, | ||
161 | Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, QA, | ||
162 | 0, 0, 0, 0, 0, 0, 0 | ||
163 | }; | ||
164 | |||
165 | #undef Q0 | ||
166 | #undef Q1 | ||
167 | #undef Q2 | ||
168 | #undef Q3 | ||
169 | #undef Q4 | ||
170 | #undef Q5 | ||
171 | #undef Q6 | ||
172 | #undef Q7 | ||
173 | #undef Q8 | ||
174 | #undef Q9 | ||
175 | #undef QA | ||
176 | |||
177 | static const quantizer_t q_5[16] = { | ||
178 | Q (-14/15), Q (-12/15), Q (-10/15), Q (-8/15), Q (-6/15), | ||
179 | Q (-4/15), Q (-2/15), Q (0), Q (2/15), Q (4/15), | ||
180 | Q (6/15), Q (8/15), Q (10/15), Q (12/15), Q (14/15), 0 | ||
181 | }; | ||
182 | |||
183 | #ifndef LIBA52_FIXED | ||
184 | static const sample_t scale_factor[25] = { | ||
185 | 0.000030517578125, | ||
186 | 0.0000152587890625, | ||
187 | 0.00000762939453125, | ||
188 | 0.000003814697265625, | ||
189 | 0.0000019073486328125, | ||
190 | 0.00000095367431640625, | ||
191 | 0.000000476837158203125, | ||
192 | 0.0000002384185791015625, | ||
193 | 0.00000011920928955078125, | ||
194 | 0.000000059604644775390625, | ||
195 | 0.0000000298023223876953125, | ||
196 | 0.00000001490116119384765625, | ||
197 | 0.000000007450580596923828125, | ||
198 | 0.0000000037252902984619140625, | ||
199 | 0.00000000186264514923095703125, | ||
200 | 0.000000000931322574615478515625, | ||
201 | 0.0000000004656612873077392578125, | ||
202 | 0.00000000023283064365386962890625, | ||
203 | 0.000000000116415321826934814453125, | ||
204 | 0.0000000000582076609134674072265625, | ||
205 | 0.00000000002910383045673370361328125, | ||
206 | 0.000000000014551915228366851806640625, | ||
207 | 0.0000000000072759576141834259033203125, | ||
208 | 0.00000000000363797880709171295166015625, | ||
209 | 0.000000000001818989403545856475830078125 | ||
210 | }; | ||
211 | #endif | ||
212 | |||
213 | static const uint16_t dither_lut[256] = { | ||
214 | 0x0000, 0xa011, 0xe033, 0x4022, 0x6077, 0xc066, 0x8044, 0x2055, | ||
215 | 0xc0ee, 0x60ff, 0x20dd, 0x80cc, 0xa099, 0x0088, 0x40aa, 0xe0bb, | ||
216 | 0x21cd, 0x81dc, 0xc1fe, 0x61ef, 0x41ba, 0xe1ab, 0xa189, 0x0198, | ||
217 | 0xe123, 0x4132, 0x0110, 0xa101, 0x8154, 0x2145, 0x6167, 0xc176, | ||
218 | 0x439a, 0xe38b, 0xa3a9, 0x03b8, 0x23ed, 0x83fc, 0xc3de, 0x63cf, | ||
219 | 0x8374, 0x2365, 0x6347, 0xc356, 0xe303, 0x4312, 0x0330, 0xa321, | ||
220 | 0x6257, 0xc246, 0x8264, 0x2275, 0x0220, 0xa231, 0xe213, 0x4202, | ||
221 | 0xa2b9, 0x02a8, 0x428a, 0xe29b, 0xc2ce, 0x62df, 0x22fd, 0x82ec, | ||
222 | 0x8734, 0x2725, 0x6707, 0xc716, 0xe743, 0x4752, 0x0770, 0xa761, | ||
223 | 0x47da, 0xe7cb, 0xa7e9, 0x07f8, 0x27ad, 0x87bc, 0xc79e, 0x678f, | ||
224 | 0xa6f9, 0x06e8, 0x46ca, 0xe6db, 0xc68e, 0x669f, 0x26bd, 0x86ac, | ||
225 | 0x6617, 0xc606, 0x8624, 0x2635, 0x0660, 0xa671, 0xe653, 0x4642, | ||
226 | 0xc4ae, 0x64bf, 0x249d, 0x848c, 0xa4d9, 0x04c8, 0x44ea, 0xe4fb, | ||
227 | 0x0440, 0xa451, 0xe473, 0x4462, 0x6437, 0xc426, 0x8404, 0x2415, | ||
228 | 0xe563, 0x4572, 0x0550, 0xa541, 0x8514, 0x2505, 0x6527, 0xc536, | ||
229 | 0x258d, 0x859c, 0xc5be, 0x65af, 0x45fa, 0xe5eb, 0xa5c9, 0x05d8, | ||
230 | 0xae79, 0x0e68, 0x4e4a, 0xee5b, 0xce0e, 0x6e1f, 0x2e3d, 0x8e2c, | ||
231 | 0x6e97, 0xce86, 0x8ea4, 0x2eb5, 0x0ee0, 0xaef1, 0xeed3, 0x4ec2, | ||
232 | 0x8fb4, 0x2fa5, 0x6f87, 0xcf96, 0xefc3, 0x4fd2, 0x0ff0, 0xafe1, | ||
233 | 0x4f5a, 0xef4b, 0xaf69, 0x0f78, 0x2f2d, 0x8f3c, 0xcf1e, 0x6f0f, | ||
234 | 0xede3, 0x4df2, 0x0dd0, 0xadc1, 0x8d94, 0x2d85, 0x6da7, 0xcdb6, | ||
235 | 0x2d0d, 0x8d1c, 0xcd3e, 0x6d2f, 0x4d7a, 0xed6b, 0xad49, 0x0d58, | ||
236 | 0xcc2e, 0x6c3f, 0x2c1d, 0x8c0c, 0xac59, 0x0c48, 0x4c6a, 0xec7b, | ||
237 | 0x0cc0, 0xacd1, 0xecf3, 0x4ce2, 0x6cb7, 0xcca6, 0x8c84, 0x2c95, | ||
238 | 0x294d, 0x895c, 0xc97e, 0x696f, 0x493a, 0xe92b, 0xa909, 0x0918, | ||
239 | 0xe9a3, 0x49b2, 0x0990, 0xa981, 0x89d4, 0x29c5, 0x69e7, 0xc9f6, | ||
240 | 0x0880, 0xa891, 0xe8b3, 0x48a2, 0x68f7, 0xc8e6, 0x88c4, 0x28d5, | ||
241 | 0xc86e, 0x687f, 0x285d, 0x884c, 0xa819, 0x0808, 0x482a, 0xe83b, | ||
242 | 0x6ad7, 0xcac6, 0x8ae4, 0x2af5, 0x0aa0, 0xaab1, 0xea93, 0x4a82, | ||
243 | 0xaa39, 0x0a28, 0x4a0a, 0xea1b, 0xca4e, 0x6a5f, 0x2a7d, 0x8a6c, | ||
244 | 0x4b1a, 0xeb0b, 0xab29, 0x0b38, 0x2b6d, 0x8b7c, 0xcb5e, 0x6b4f, | ||
245 | 0x8bf4, 0x2be5, 0x6bc7, 0xcbd6, 0xeb83, 0x4b92, 0x0bb0, 0xaba1 | ||
246 | }; | ||