VirtualBox

source: vbox/trunk/src/libs/ffmpeg-20060710/libavcodec/liba52/tables.h@ 5776

Last change on this file since 5776 was 5776, checked in by vboxsync, 17 years ago

ffmpeg: exported to OSE
File size: 9.3 KB
Line 
1/*
2 * tables.h
3 * Copyright (C) 2000-2003 Michel Lespinasse <[email protected]>
4 * Copyright (C) 1999-2000 Aaron Holtzman <[email protected]>
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 */
23
24static 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};
32static 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};
40static 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
55static 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
62static 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
69static 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
86static 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
95static 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
104static 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
119static 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
135static 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
150static 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
177static 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
184static 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
213static 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};
Note: See TracBrowser for help on using the repository browser.

© 2024 Oracle Support Privacy / Do Not Sell My Info Terms of Use Trademark Policy Automated Access Etiquette