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Imported Debian version 2.5.3~trusty1
[deb_ffmpeg.git] / ffmpeg / libavcodec / dvdata.c
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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 */
33const 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) */
45const 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
70const uint8_t ff_dv_quant_offset[4] = { 6, 3, 0, 1 };
71
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 */
77const 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
132const 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
187const 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
242const 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};
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