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2ba45a60 DM |
1 | /* |
2 | * Constants for DV codec | |
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 | * Constants for DV codec. | |
25 | */ | |
26 | ||
27 | #include <stdint.h> | |
28 | ||
29 | #include "dvdata.h" | |
30 | ||
31 | /* Specific zigzag scan for 248 idct. NOTE that unlike the | |
32 | * specification, we interleave the fields */ | |
33 | const uint8_t ff_dv_zigzag248_direct[64] = { | |
34 | 0, 8, 1, 9, 16, 24, 2, 10, | |
35 | 17, 25, 32, 40, 48, 56, 33, 41, | |
36 | 18, 26, 3, 11, 4, 12, 19, 27, | |
37 | 34, 42, 49, 57, 50, 58, 35, 43, | |
38 | 20, 28, 5, 13, 6, 14, 21, 29, | |
39 | 36, 44, 51, 59, 52, 60, 37, 45, | |
40 | 22, 30, 7, 15, 23, 31, 38, 46, | |
41 | 53, 61, 54, 62, 39, 47, 55, 63, | |
42 | }; | |
43 | ||
44 | /* unquant tables (not used directly) */ | |
45 | const uint8_t ff_dv_quant_shifts[22][4] = { | |
46 | { 3, 3, 4, 4 }, | |
47 | { 3, 3, 4, 4 }, | |
48 | { 2, 3, 3, 4 }, | |
49 | { 2, 3, 3, 4 }, | |
50 | { 2, 2, 3, 3 }, | |
51 | { 2, 2, 3, 3 }, | |
52 | { 1, 2, 2, 3 }, | |
53 | { 1, 2, 2, 3 }, | |
54 | { 1, 1, 2, 2 }, | |
55 | { 1, 1, 2, 2 }, | |
56 | { 0, 1, 1, 2 }, | |
57 | { 0, 1, 1, 2 }, | |
58 | { 0, 0, 1, 1 }, | |
59 | { 0, 0, 1, 1 }, | |
60 | { 0, 0, 0, 1 }, | |
61 | { 0, 0, 0, 0 }, | |
62 | { 0, 0, 0, 0 }, | |
63 | { 0, 0, 0, 0 }, | |
64 | { 0, 0, 0, 0 }, | |
65 | { 0, 0, 0, 0 }, | |
66 | { 0, 0, 0, 0 }, | |
67 | { 0, 0, 0, 0 }, | |
68 | }; | |
69 | ||
70 | const uint8_t ff_dv_quant_offset[4] = { 6, 3, 0, 1 }; | |
71 | ||
2ba45a60 DM |
72 | /* |
73 | * There's a catch about the following three tables: the mapping they establish | |
74 | * between (run, level) and vlc is not 1-1. So you have to watch out for that | |
75 | * when building misc. tables. E.g. (1, 0) can be either 0x7cf or 0x1f82. | |
76 | */ | |
77 | const uint16_t ff_dv_vlc_bits[NB_DV_VLC] = { | |
78 | 0x0000, 0x0002, 0x0007, 0x0008, 0x0009, 0x0014, 0x0015, 0x0016, | |
79 | 0x0017, 0x0030, 0x0031, 0x0032, 0x0033, 0x0068, 0x0069, 0x006a, | |
80 | 0x006b, 0x006c, 0x006d, 0x006e, 0x006f, 0x00e0, 0x00e1, 0x00e2, | |
81 | 0x00e3, 0x00e4, 0x00e5, 0x00e6, 0x00e7, 0x00e8, 0x00e9, 0x00ea, | |
82 | 0x00eb, 0x00ec, 0x00ed, 0x00ee, 0x00ef, 0x01e0, 0x01e1, 0x01e2, | |
83 | 0x01e3, 0x01e4, 0x01e5, 0x01e6, 0x01e7, 0x01e8, 0x01e9, 0x01ea, | |
84 | 0x01eb, 0x01ec, 0x01ed, 0x01ee, 0x01ef, 0x03e0, 0x03e1, 0x03e2, | |
85 | 0x03e3, 0x03e4, 0x03e5, 0x03e6, 0x07ce, 0x07cf, 0x07d0, 0x07d1, | |
86 | 0x07d2, 0x07d3, 0x07d4, 0x07d5, 0x0fac, 0x0fad, 0x0fae, 0x0faf, | |
87 | 0x0fb0, 0x0fb1, 0x0fb2, 0x0fb3, 0x0fb4, 0x0fb5, 0x0fb6, 0x0fb7, | |
88 | 0x0fb8, 0x0fb9, 0x0fba, 0x0fbb, 0x0fbc, 0x0fbd, 0x0fbe, 0x0fbf, | |
89 | 0x1f80, 0x1f81, 0x1f82, 0x1f83, 0x1f84, 0x1f85, 0x1f86, 0x1f87, | |
90 | 0x1f88, 0x1f89, 0x1f8a, 0x1f8b, 0x1f8c, 0x1f8d, 0x1f8e, 0x1f8f, | |
91 | 0x1f90, 0x1f91, 0x1f92, 0x1f93, 0x1f94, 0x1f95, 0x1f96, 0x1f97, | |
92 | 0x1f98, 0x1f99, 0x1f9a, 0x1f9b, 0x1f9c, 0x1f9d, 0x1f9e, 0x1f9f, | |
93 | 0x1fa0, 0x1fa1, 0x1fa2, 0x1fa3, 0x1fa4, 0x1fa5, 0x1fa6, 0x1fa7, | |
94 | 0x1fa8, 0x1fa9, 0x1faa, 0x1fab, 0x1fac, 0x1fad, 0x1fae, 0x1faf, | |
95 | 0x1fb0, 0x1fb1, 0x1fb2, 0x1fb3, 0x1fb4, 0x1fb5, 0x1fb6, 0x1fb7, | |
96 | 0x1fb8, 0x1fb9, 0x1fba, 0x1fbb, 0x1fbc, 0x1fbd, 0x1fbe, 0x1fbf, | |
97 | 0x7f00, 0x7f01, 0x7f02, 0x7f03, 0x7f04, 0x7f05, 0x7f06, 0x7f07, | |
98 | 0x7f08, 0x7f09, 0x7f0a, 0x7f0b, 0x7f0c, 0x7f0d, 0x7f0e, 0x7f0f, | |
99 | 0x7f10, 0x7f11, 0x7f12, 0x7f13, 0x7f14, 0x7f15, 0x7f16, 0x7f17, | |
100 | 0x7f18, 0x7f19, 0x7f1a, 0x7f1b, 0x7f1c, 0x7f1d, 0x7f1e, 0x7f1f, | |
101 | 0x7f20, 0x7f21, 0x7f22, 0x7f23, 0x7f24, 0x7f25, 0x7f26, 0x7f27, | |
102 | 0x7f28, 0x7f29, 0x7f2a, 0x7f2b, 0x7f2c, 0x7f2d, 0x7f2e, 0x7f2f, | |
103 | 0x7f30, 0x7f31, 0x7f32, 0x7f33, 0x7f34, 0x7f35, 0x7f36, 0x7f37, | |
104 | 0x7f38, 0x7f39, 0x7f3a, 0x7f3b, 0x7f3c, 0x7f3d, 0x7f3e, 0x7f3f, | |
105 | 0x7f40, 0x7f41, 0x7f42, 0x7f43, 0x7f44, 0x7f45, 0x7f46, 0x7f47, | |
106 | 0x7f48, 0x7f49, 0x7f4a, 0x7f4b, 0x7f4c, 0x7f4d, 0x7f4e, 0x7f4f, | |
107 | 0x7f50, 0x7f51, 0x7f52, 0x7f53, 0x7f54, 0x7f55, 0x7f56, 0x7f57, | |
108 | 0x7f58, 0x7f59, 0x7f5a, 0x7f5b, 0x7f5c, 0x7f5d, 0x7f5e, 0x7f5f, | |
109 | 0x7f60, 0x7f61, 0x7f62, 0x7f63, 0x7f64, 0x7f65, 0x7f66, 0x7f67, | |
110 | 0x7f68, 0x7f69, 0x7f6a, 0x7f6b, 0x7f6c, 0x7f6d, 0x7f6e, 0x7f6f, | |
111 | 0x7f70, 0x7f71, 0x7f72, 0x7f73, 0x7f74, 0x7f75, 0x7f76, 0x7f77, | |
112 | 0x7f78, 0x7f79, 0x7f7a, 0x7f7b, 0x7f7c, 0x7f7d, 0x7f7e, 0x7f7f, | |
113 | 0x7f80, 0x7f81, 0x7f82, 0x7f83, 0x7f84, 0x7f85, 0x7f86, 0x7f87, | |
114 | 0x7f88, 0x7f89, 0x7f8a, 0x7f8b, 0x7f8c, 0x7f8d, 0x7f8e, 0x7f8f, | |
115 | 0x7f90, 0x7f91, 0x7f92, 0x7f93, 0x7f94, 0x7f95, 0x7f96, 0x7f97, | |
116 | 0x7f98, 0x7f99, 0x7f9a, 0x7f9b, 0x7f9c, 0x7f9d, 0x7f9e, 0x7f9f, | |
117 | 0x7fa0, 0x7fa1, 0x7fa2, 0x7fa3, 0x7fa4, 0x7fa5, 0x7fa6, 0x7fa7, | |
118 | 0x7fa8, 0x7fa9, 0x7faa, 0x7fab, 0x7fac, 0x7fad, 0x7fae, 0x7faf, | |
119 | 0x7fb0, 0x7fb1, 0x7fb2, 0x7fb3, 0x7fb4, 0x7fb5, 0x7fb6, 0x7fb7, | |
120 | 0x7fb8, 0x7fb9, 0x7fba, 0x7fbb, 0x7fbc, 0x7fbd, 0x7fbe, 0x7fbf, | |
121 | 0x7fc0, 0x7fc1, 0x7fc2, 0x7fc3, 0x7fc4, 0x7fc5, 0x7fc6, 0x7fc7, | |
122 | 0x7fc8, 0x7fc9, 0x7fca, 0x7fcb, 0x7fcc, 0x7fcd, 0x7fce, 0x7fcf, | |
123 | 0x7fd0, 0x7fd1, 0x7fd2, 0x7fd3, 0x7fd4, 0x7fd5, 0x7fd6, 0x7fd7, | |
124 | 0x7fd8, 0x7fd9, 0x7fda, 0x7fdb, 0x7fdc, 0x7fdd, 0x7fde, 0x7fdf, | |
125 | 0x7fe0, 0x7fe1, 0x7fe2, 0x7fe3, 0x7fe4, 0x7fe5, 0x7fe6, 0x7fe7, | |
126 | 0x7fe8, 0x7fe9, 0x7fea, 0x7feb, 0x7fec, 0x7fed, 0x7fee, 0x7fef, | |
127 | 0x7ff0, 0x7ff1, 0x7ff2, 0x7ff3, 0x7ff4, 0x7ff5, 0x7ff6, 0x7ff7, | |
128 | 0x7ff8, 0x7ff9, 0x7ffa, 0x7ffb, 0x7ffc, 0x7ffd, 0x7ffe, 0x7fff, | |
129 | 0x0006, | |
130 | }; | |
131 | ||
132 | const uint8_t ff_dv_vlc_len[NB_DV_VLC] = { | |
133 | 2, 3, 4, 4, 4, 5, 5, 5, | |
134 | 5, 6, 6, 6, 6, 7, 7, 7, | |
135 | 7, 7, 7, 7, 7, 8, 8, 8, | |
136 | 8, 8, 8, 8, 8, 8, 8, 8, | |
137 | 8, 8, 8, 8, 8, 9, 9, 9, | |
138 | 9, 9, 9, 9, 9, 9, 9, 9, | |
139 | 9, 9, 9, 9, 9, 10, 10, 10, | |
140 | 10, 10, 10, 10, 11, 11, 11, 11, | |
141 | 11, 11, 11, 11, 12, 12, 12, 12, | |
142 | 12, 12, 12, 12, 12, 12, 12, 12, | |
143 | 12, 12, 12, 12, 12, 12, 12, 12, | |
144 | 13, 13, 13, 13, 13, 13, 13, 13, | |
145 | 13, 13, 13, 13, 13, 13, 13, 13, | |
146 | 13, 13, 13, 13, 13, 13, 13, 13, | |
147 | 13, 13, 13, 13, 13, 13, 13, 13, | |
148 | 13, 13, 13, 13, 13, 13, 13, 13, | |
149 | 13, 13, 13, 13, 13, 13, 13, 13, | |
150 | 13, 13, 13, 13, 13, 13, 13, 13, | |
151 | 13, 13, 13, 13, 13, 13, 13, 13, | |
152 | 15, 15, 15, 15, 15, 15, 15, 15, | |
153 | 15, 15, 15, 15, 15, 15, 15, 15, | |
154 | 15, 15, 15, 15, 15, 15, 15, 15, | |
155 | 15, 15, 15, 15, 15, 15, 15, 15, | |
156 | 15, 15, 15, 15, 15, 15, 15, 15, | |
157 | 15, 15, 15, 15, 15, 15, 15, 15, | |
158 | 15, 15, 15, 15, 15, 15, 15, 15, | |
159 | 15, 15, 15, 15, 15, 15, 15, 15, | |
160 | 15, 15, 15, 15, 15, 15, 15, 15, | |
161 | 15, 15, 15, 15, 15, 15, 15, 15, | |
162 | 15, 15, 15, 15, 15, 15, 15, 15, | |
163 | 15, 15, 15, 15, 15, 15, 15, 15, | |
164 | 15, 15, 15, 15, 15, 15, 15, 15, | |
165 | 15, 15, 15, 15, 15, 15, 15, 15, | |
166 | 15, 15, 15, 15, 15, 15, 15, 15, | |
167 | 15, 15, 15, 15, 15, 15, 15, 15, | |
168 | 15, 15, 15, 15, 15, 15, 15, 15, | |
169 | 15, 15, 15, 15, 15, 15, 15, 15, | |
170 | 15, 15, 15, 15, 15, 15, 15, 15, | |
171 | 15, 15, 15, 15, 15, 15, 15, 15, | |
172 | 15, 15, 15, 15, 15, 15, 15, 15, | |
173 | 15, 15, 15, 15, 15, 15, 15, 15, | |
174 | 15, 15, 15, 15, 15, 15, 15, 15, | |
175 | 15, 15, 15, 15, 15, 15, 15, 15, | |
176 | 15, 15, 15, 15, 15, 15, 15, 15, | |
177 | 15, 15, 15, 15, 15, 15, 15, 15, | |
178 | 15, 15, 15, 15, 15, 15, 15, 15, | |
179 | 15, 15, 15, 15, 15, 15, 15, 15, | |
180 | 15, 15, 15, 15, 15, 15, 15, 15, | |
181 | 15, 15, 15, 15, 15, 15, 15, 15, | |
182 | 15, 15, 15, 15, 15, 15, 15, 15, | |
183 | 15, 15, 15, 15, 15, 15, 15, 15, | |
184 | 4, | |
185 | }; | |
186 | ||
187 | const uint8_t ff_dv_vlc_run[NB_DV_VLC] = { | |
188 | 0, 0, 1, 0, 0, 2, 1, 0, | |
189 | 0, 3, 4, 0, 0, 5, 6, 2, | |
190 | 1, 1, 0, 0, 0, 7, 8, 9, | |
191 | 10, 3, 4, 2, 1, 1, 1, 0, | |
192 | 0, 0, 0, 0, 0, 11, 12, 13, | |
193 | 14, 5, 6, 3, 4, 2, 2, 1, | |
194 | 0, 0, 0, 0, 0, 5, 3, 3, | |
195 | 2, 1, 1, 1, 0, 1, 6, 4, | |
196 | 3, 1, 1, 1, 2, 3, 4, 5, | |
197 | 7, 8, 9, 10, 7, 8, 4, 3, | |
198 | 2, 2, 2, 2, 2, 1, 1, 1, | |
199 | 0, 1, 2, 3, 4, 5, 6, 7, | |
200 | 8, 9, 10, 11, 12, 13, 14, 15, | |
201 | 16, 17, 18, 19, 20, 21, 22, 23, | |
202 | 24, 25, 26, 27, 28, 29, 30, 31, | |
203 | 32, 33, 34, 35, 36, 37, 38, 39, | |
204 | 40, 41, 42, 43, 44, 45, 46, 47, | |
205 | 48, 49, 50, 51, 52, 53, 54, 55, | |
206 | 56, 57, 58, 59, 60, 61, 62, 63, | |
207 | 0, 0, 0, 0, 0, 0, 0, 0, | |
208 | 0, 0, 0, 0, 0, 0, 0, 0, | |
209 | 0, 0, 0, 0, 0, 0, 0, 0, | |
210 | 0, 0, 0, 0, 0, 0, 0, 0, | |
211 | 0, 0, 0, 0, 0, 0, 0, 0, | |
212 | 0, 0, 0, 0, 0, 0, 0, 0, | |
213 | 0, 0, 0, 0, 0, 0, 0, 0, | |
214 | 0, 0, 0, 0, 0, 0, 0, 0, | |
215 | 0, 0, 0, 0, 0, 0, 0, 0, | |
216 | 0, 0, 0, 0, 0, 0, 0, 0, | |
217 | 0, 0, 0, 0, 0, 0, 0, 0, | |
218 | 0, 0, 0, 0, 0, 0, 0, 0, | |
219 | 0, 0, 0, 0, 0, 0, 0, 0, | |
220 | 0, 0, 0, 0, 0, 0, 0, 0, | |
221 | 0, 0, 0, 0, 0, 0, 0, 0, | |
222 | 0, 0, 0, 0, 0, 0, 0, 0, | |
223 | 0, 0, 0, 0, 0, 0, 0, 0, | |
224 | 0, 0, 0, 0, 0, 0, 0, 0, | |
225 | 0, 0, 0, 0, 0, 0, 0, 0, | |
226 | 0, 0, 0, 0, 0, 0, 0, 0, | |
227 | 0, 0, 0, 0, 0, 0, 0, 0, | |
228 | 0, 0, 0, 0, 0, 0, 0, 0, | |
229 | 0, 0, 0, 0, 0, 0, 0, 0, | |
230 | 0, 0, 0, 0, 0, 0, 0, 0, | |
231 | 0, 0, 0, 0, 0, 0, 0, 0, | |
232 | 0, 0, 0, 0, 0, 0, 0, 0, | |
233 | 0, 0, 0, 0, 0, 0, 0, 0, | |
234 | 0, 0, 0, 0, 0, 0, 0, 0, | |
235 | 0, 0, 0, 0, 0, 0, 0, 0, | |
236 | 0, 0, 0, 0, 0, 0, 0, 0, | |
237 | 0, 0, 0, 0, 0, 0, 0, 0, | |
238 | 0, 0, 0, 0, 0, 0, 0, 0, | |
239 | 127, | |
240 | }; | |
241 | ||
242 | const uint8_t ff_dv_vlc_level[NB_DV_VLC] = { | |
243 | 1, 2, 1, 3, 4, 1, 2, 5, | |
244 | 6, 1, 1, 7, 8, 1, 1, 2, | |
245 | 3, 4, 9, 10, 11, 1, 1, 1, | |
246 | 1, 2, 2, 3, 5, 6, 7, 12, | |
247 | 13, 14, 15, 16, 17, 1, 1, 1, | |
248 | 1, 2, 2, 3, 3, 4, 5, 8, | |
249 | 18, 19, 20, 21, 22, 3, 4, 5, | |
250 | 6, 9, 10, 11, 0, 0, 3, 4, | |
251 | 6, 12, 13, 14, 0, 0, 0, 0, | |
252 | 2, 2, 2, 2, 3, 3, 5, 7, | |
253 | 7, 8, 9, 10, 11, 15, 16, 17, | |
254 | 0, 0, 0, 0, 0, 0, 0, 0, | |
255 | 0, 0, 0, 0, 0, 0, 0, 0, | |
256 | 0, 0, 0, 0, 0, 0, 0, 0, | |
257 | 0, 0, 0, 0, 0, 0, 0, 0, | |
258 | 0, 0, 0, 0, 0, 0, 0, 0, | |
259 | 0, 0, 0, 0, 0, 0, 0, 0, | |
260 | 0, 0, 0, 0, 0, 0, 0, 0, | |
261 | 0, 0, 0, 0, 0, 0, 0, 0, | |
262 | 0, 1, 2, 3, 4, 5, 6, 7, | |
263 | 8, 9, 10, 11, 12, 13, 14, 15, | |
264 | 16, 17, 18, 19, 20, 21, 22, 23, | |
265 | 24, 25, 26, 27, 28, 29, 30, 31, | |
266 | 32, 33, 34, 35, 36, 37, 38, 39, | |
267 | 40, 41, 42, 43, 44, 45, 46, 47, | |
268 | 48, 49, 50, 51, 52, 53, 54, 55, | |
269 | 56, 57, 58, 59, 60, 61, 62, 63, | |
270 | 64, 65, 66, 67, 68, 69, 70, 71, | |
271 | 72, 73, 74, 75, 76, 77, 78, 79, | |
272 | 80, 81, 82, 83, 84, 85, 86, 87, | |
273 | 88, 89, 90, 91, 92, 93, 94, 95, | |
274 | 96, 97, 98, 99, 100, 101, 102, 103, | |
275 | 104, 105, 106, 107, 108, 109, 110, 111, | |
276 | 112, 113, 114, 115, 116, 117, 118, 119, | |
277 | 120, 121, 122, 123, 124, 125, 126, 127, | |
278 | 128, 129, 130, 131, 132, 133, 134, 135, | |
279 | 136, 137, 138, 139, 140, 141, 142, 143, | |
280 | 144, 145, 146, 147, 148, 149, 150, 151, | |
281 | 152, 153, 154, 155, 156, 157, 158, 159, | |
282 | 160, 161, 162, 163, 164, 165, 166, 167, | |
283 | 168, 169, 170, 171, 172, 173, 174, 175, | |
284 | 176, 177, 178, 179, 180, 181, 182, 183, | |
285 | 184, 185, 186, 187, 188, 189, 190, 191, | |
286 | 192, 193, 194, 195, 196, 197, 198, 199, | |
287 | 200, 201, 202, 203, 204, 205, 206, 207, | |
288 | 208, 209, 210, 211, 212, 213, 214, 215, | |
289 | 216, 217, 218, 219, 220, 221, 222, 223, | |
290 | 224, 225, 226, 227, 228, 229, 230, 231, | |
291 | 232, 233, 234, 235, 236, 237, 238, 239, | |
292 | 240, 241, 242, 243, 244, 245, 246, 247, | |
293 | 248, 249, 250, 251, 252, 253, 254, 255, | |
294 | 0, | |
295 | }; |