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path: root/libavcodec/h263data.c (plain)
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1/*
2 * H.263+ tables
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21/**
22 * @file
23 * H.263 tables.
24 */
25
26#include <stdint.h>
27
28#include "h263data.h"
29#include "mpegvideo.h"
30
31uint8_t ff_h263_static_rl_table_store[2][2][2 * MAX_RUN + MAX_LEVEL + 3];
32
33/* intra MCBPC, mb_type = (intra), then (intraq) */
34const uint8_t ff_h263_intra_MCBPC_code[9] = { 1, 1, 2, 3, 1, 1, 2, 3, 1 };
35const uint8_t ff_h263_intra_MCBPC_bits[9] = { 1, 3, 3, 3, 4, 6, 6, 6, 9 };
36
37/* inter MCBPC, mb_type = (inter), (intra), (interq), (intraq), (inter4v) */
38/* Changed the tables for interq and inter4v+q, following the standard
39 * ** Juanjo ** */
40const uint8_t ff_h263_inter_MCBPC_code[28] = {
41 1, 3, 2, 5,
42 3, 4, 3, 3,
43 3, 7, 6, 5,
44 4, 4, 3, 2,
45 2, 5, 4, 5,
46 1, 0, 0, 0, /* Stuffing */
47 2, 12, 14, 15,
48};
49const uint8_t ff_h263_inter_MCBPC_bits[28] = {
50 1, 4, 4, 6, /* inter */
51 5, 8, 8, 7, /* intra */
52 3, 7, 7, 9, /* interQ */
53 6, 9, 9, 9, /* intraQ */
54 3, 7, 7, 8, /* inter4 */
55 9, 0, 0, 0, /* Stuffing */
56 11, 13, 13, 13, /* inter4Q */
57};
58
59const uint8_t ff_h263_mbtype_b_tab[15][2] = {
60 { 1, 1 },
61 { 3, 3 },
62 { 1, 5 },
63 { 4, 4 },
64 { 5, 4 },
65 { 6, 6 },
66 { 2, 4 },
67 { 3, 4 },
68 { 7, 6 },
69 { 4, 6 },
70 { 5, 6 },
71 { 1, 6 },
72 { 1, 10 },
73 { 1, 7 },
74 { 1, 8 },
75};
76
77const uint8_t ff_cbpc_b_tab[4][2] = {
78 { 0, 1 },
79 { 2, 2 },
80 { 7, 3 },
81 { 6, 3 },
82};
83
84const uint8_t ff_h263_cbpy_tab[16][2] = {
85 { 3, 4 }, { 5, 5 }, { 4, 5 }, { 9, 4 }, { 3, 5 }, { 7, 4 }, { 2, 6 },
86 { 11, 4 }, { 2, 5 }, { 3, 6 }, { 5, 4 }, { 10, 4 }, { 4, 4 }, { 8, 4 },
87 { 6, 4 }, { 3, 2 }
88};
89
90const uint8_t ff_mvtab[33][2] = {
91 { 1, 1 }, { 1, 2 }, { 1, 3 }, { 1, 4 }, { 3, 6 }, { 5, 7 },
92 { 4, 7 }, { 3, 7 }, { 11, 9 }, { 10, 9 }, { 9, 9 }, { 17, 10 },
93 { 16, 10 }, { 15, 10 }, { 14, 10 }, { 13, 10 }, { 12, 10 }, { 11, 10 },
94 { 10, 10 }, { 9, 10 }, { 8, 10 }, { 7, 10 }, { 6, 10 }, { 5, 10 },
95 { 4, 10 }, { 7, 11 }, { 6, 11 }, { 5, 11 }, { 4, 11 }, { 3, 11 },
96 { 2, 11 }, { 3, 12 }, { 2, 12 }
97};
98
99/* third non intra table */
100const uint16_t ff_inter_vlc[103][2] = {
101 { 0x2, 2 }, { 0xf, 4 }, { 0x15, 6 }, { 0x17, 7 },
102 { 0x1f, 8 }, { 0x25, 9 }, { 0x24, 9 }, { 0x21, 10 },
103 { 0x20, 10 }, { 0x7, 11 }, { 0x6, 11 }, { 0x20, 11 },
104 { 0x6, 3 }, { 0x14, 6 }, { 0x1e, 8 }, { 0xf, 10 },
105 { 0x21, 11 }, { 0x50, 12 }, { 0xe, 4 }, { 0x1d, 8 },
106 { 0xe, 10 }, { 0x51, 12 }, { 0xd, 5 }, { 0x23, 9 },
107 { 0xd, 10 }, { 0xc, 5 }, { 0x22, 9 }, { 0x52, 12 },
108 { 0xb, 5 }, { 0xc, 10 }, { 0x53, 12 }, { 0x13, 6 },
109 { 0xb, 10 }, { 0x54, 12 }, { 0x12, 6 }, { 0xa, 10 },
110 { 0x11, 6 }, { 0x9, 10 }, { 0x10, 6 }, { 0x8, 10 },
111 { 0x16, 7 }, { 0x55, 12 }, { 0x15, 7 }, { 0x14, 7 },
112 { 0x1c, 8 }, { 0x1b, 8 }, { 0x21, 9 }, { 0x20, 9 },
113 { 0x1f, 9 }, { 0x1e, 9 }, { 0x1d, 9 }, { 0x1c, 9 },
114 { 0x1b, 9 }, { 0x1a, 9 }, { 0x22, 11 }, { 0x23, 11 },
115 { 0x56, 12 }, { 0x57, 12 }, { 0x7, 4 }, { 0x19, 9 },
116 { 0x5, 11 }, { 0xf, 6 }, { 0x4, 11 }, { 0xe, 6 },
117 { 0xd, 6 }, { 0xc, 6 }, { 0x13, 7 }, { 0x12, 7 },
118 { 0x11, 7 }, { 0x10, 7 }, { 0x1a, 8 }, { 0x19, 8 },
119 { 0x18, 8 }, { 0x17, 8 }, { 0x16, 8 }, { 0x15, 8 },
120 { 0x14, 8 }, { 0x13, 8 }, { 0x18, 9 }, { 0x17, 9 },
121 { 0x16, 9 }, { 0x15, 9 }, { 0x14, 9 }, { 0x13, 9 },
122 { 0x12, 9 }, { 0x11, 9 }, { 0x7, 10 }, { 0x6, 10 },
123 { 0x5, 10 }, { 0x4, 10 }, { 0x24, 11 }, { 0x25, 11 },
124 { 0x26, 11 }, { 0x27, 11 }, { 0x58, 12 }, { 0x59, 12 },
125 { 0x5a, 12 }, { 0x5b, 12 }, { 0x5c, 12 }, { 0x5d, 12 },
126 { 0x5e, 12 }, { 0x5f, 12 }, { 0x3, 7 },
127};
128
129const int8_t ff_inter_level[102] = {
130 1, 2, 3, 4, 5, 6, 7, 8,
131 9, 10, 11, 12, 1, 2, 3, 4,
132 5, 6, 1, 2, 3, 4, 1, 2,
133 3, 1, 2, 3, 1, 2, 3, 1,
134 2, 3, 1, 2, 1, 2, 1, 2,
135 1, 2, 1, 1, 1, 1, 1, 1,
136 1, 1, 1, 1, 1, 1, 1, 1,
137 1, 1, 1, 2, 3, 1, 2, 1,
138 1, 1, 1, 1, 1, 1, 1, 1,
139 1, 1, 1, 1, 1, 1, 1, 1,
140 1, 1, 1, 1, 1, 1, 1, 1,
141 1, 1, 1, 1, 1, 1, 1, 1,
142 1, 1, 1, 1, 1, 1,
143};
144
145const int8_t ff_inter_run[102] = {
146 0, 0, 0, 0, 0, 0, 0, 0,
147 0, 0, 0, 0, 1, 1, 1, 1,
148 1, 1, 2, 2, 2, 2, 3, 3,
149 3, 4, 4, 4, 5, 5, 5, 6,
150 6, 6, 7, 7, 8, 8, 9, 9,
151 10, 10, 11, 12, 13, 14, 15, 16,
152 17, 18, 19, 20, 21, 22, 23, 24,
153 25, 26, 0, 0, 0, 1, 1, 2,
154 3, 4, 5, 6, 7, 8, 9, 10,
155 11, 12, 13, 14, 15, 16, 17, 18,
156 19, 20, 21, 22, 23, 24, 25, 26,
157 27, 28, 29, 30, 31, 32, 33, 34,
158 35, 36, 37, 38, 39, 40,
159};
160
161RLTable ff_h263_rl_inter = {
162 102,
163 58,
164 ff_inter_vlc,
165 ff_inter_run,
166 ff_inter_level,
167};
168
169static const uint16_t intra_vlc_aic[103][2] = {
170 { 0x2, 2 }, { 0x6, 3 }, { 0xe, 4 }, { 0xc, 5 },
171 { 0xd, 5 }, { 0x10, 6 }, { 0x11, 6 }, { 0x12, 6 },
172 { 0x16, 7 }, { 0x1b, 8 }, { 0x20, 9 }, { 0x21, 9 },
173 { 0x1a, 9 }, { 0x1b, 9 }, { 0x1c, 9 }, { 0x1d, 9 },
174 { 0x1e, 9 }, { 0x1f, 9 }, { 0x23, 11 }, { 0x22, 11 },
175 { 0x57, 12 }, { 0x56, 12 }, { 0x55, 12 }, { 0x54, 12 },
176 { 0x53, 12 }, { 0xf, 4 }, { 0x14, 6 }, { 0x14, 7 },
177 { 0x1e, 8 }, { 0xf, 10 }, { 0x21, 11 }, { 0x50, 12 },
178 { 0xb, 5 }, { 0x15, 7 }, { 0xe, 10 }, { 0x9, 10 },
179 { 0x15, 6 }, { 0x1d, 8 }, { 0xd, 10 }, { 0x51, 12 },
180 { 0x13, 6 }, { 0x23, 9 }, { 0x7, 11 }, { 0x17, 7 },
181 { 0x22, 9 }, { 0x52, 12 }, { 0x1c, 8 }, { 0xc, 10 },
182 { 0x1f, 8 }, { 0xb, 10 }, { 0x25, 9 }, { 0xa, 10 },
183 { 0x24, 9 }, { 0x6, 11 }, { 0x21, 10 }, { 0x20, 10 },
184 { 0x8, 10 }, { 0x20, 11 }, { 0x7, 4 }, { 0xc, 6 },
185 { 0x10, 7 }, { 0x13, 8 }, { 0x11, 9 }, { 0x12, 9 },
186 { 0x4, 10 }, { 0x27, 11 }, { 0x26, 11 }, { 0x5f, 12 },
187 { 0xf, 6 }, { 0x13, 9 }, { 0x5, 10 }, { 0x25, 11 },
188 { 0xe, 6 }, { 0x14, 9 }, { 0x24, 11 }, { 0xd, 6 },
189 { 0x6, 10 }, { 0x5e, 12 }, { 0x11, 7 }, { 0x7, 10 },
190 { 0x13, 7 }, { 0x5d, 12 }, { 0x12, 7 }, { 0x5c, 12 },
191 { 0x14, 8 }, { 0x5b, 12 }, { 0x15, 8 }, { 0x1a, 8 },
192 { 0x19, 8 }, { 0x18, 8 }, { 0x17, 8 }, { 0x16, 8 },
193 { 0x19, 9 }, { 0x15, 9 }, { 0x16, 9 }, { 0x18, 9 },
194 { 0x17, 9 }, { 0x4, 11 }, { 0x5, 11 }, { 0x58, 12 },
195 { 0x59, 12 }, { 0x5a, 12 }, { 0x3, 7 },
196};
197
198static const int8_t intra_run_aic[102] = {
199 0, 0, 0, 0, 0, 0, 0, 0,
200 0, 0, 0, 0, 0, 0, 0, 0,
201 0, 0, 0, 0, 0, 0, 0, 0,
202 0, 1, 1, 1, 1, 1, 1, 1,
203 2, 2, 2, 2, 3, 3, 3, 3,
204 4, 4, 4, 5, 5, 5, 6, 6,
205 7, 7, 8, 8, 9, 9, 10, 11,
206 12, 13, 0, 0, 0, 0, 0, 0,
207 0, 0, 0, 0, 1, 1, 1, 1,
208 2, 2, 2, 3, 3, 3, 4, 4,
209 5, 5, 6, 6, 7, 7, 8, 9,
210 10, 11, 12, 13, 14, 15, 16, 17,
211 18, 19, 20, 21, 22, 23,
212};
213
214static const int8_t intra_level_aic[102] = {
215 1, 2, 3, 4, 5, 6, 7, 8,
216 9, 10, 11, 12, 13, 14, 15, 16,
217 17, 18, 19, 20, 21, 22, 23, 24,
218 25, 1, 2, 3, 4, 5, 6, 7,
219 1, 2, 3, 4, 1, 2, 3, 4,
220 1, 2, 3, 1, 2, 3, 1, 2,
221 1, 2, 1, 2, 1, 2, 1, 1,
222 1, 1, 1, 2, 3, 4, 5, 6,
223 7, 8, 9, 10, 1, 2, 3, 4,
224 1, 2, 3, 1, 2, 3, 1, 2,
225 1, 2, 1, 2, 1, 2, 1, 1,
226 1, 1, 1, 1, 1, 1, 1, 1,
227 1, 1, 1, 1, 1, 1,
228};
229
230RLTable ff_rl_intra_aic = {
231 102,
232 58,
233 intra_vlc_aic,
234 intra_run_aic,
235 intra_level_aic,
236};
237
238const uint16_t ff_h263_format[8][2] = {
239 { 0, 0 },
240 { 128, 96 },
241 { 176, 144 },
242 { 352, 288 },
243 { 704, 576 },
244 { 1408, 1152 },
245};
246
247const uint8_t ff_aic_dc_scale_table[32] = {
248// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
249 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62
250};
251
252const uint8_t ff_modified_quant_tab[2][32] = {
253// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
254 {
255 0, 3, 1, 2, 3, 4, 5, 6, 7, 8, 9, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28
256 },
257 {
258 0, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 24, 25, 26, 27, 28, 29, 30, 31, 31, 31, 26
259 }
260};
261
262const uint8_t ff_h263_chroma_qscale_table[32] = {
263// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
264 0, 1, 2, 3, 4, 5, 6, 6, 7, 8, 9, 9, 10, 10, 11, 11, 12, 12, 12, 13, 13, 13, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15
265};
266
267const uint16_t ff_mba_max[6] = {
268 47, 98, 395, 1583, 6335, 9215
269};
270
271const uint8_t ff_mba_length[7] = {
272 6, 7, 9, 11, 13, 14, 14
273};
274
275const AVRational ff_h263_pixel_aspect[16] = {
276 { 0, 1 },
277 { 1, 1 },
278 { 12, 11 },
279 { 10, 11 },
280 { 16, 11 },
281 { 40, 33 },
282 { 0, 1 },
283 { 0, 1 },
284 { 0, 1 },
285 { 0, 1 },
286 { 0, 1 },
287 { 0, 1 },
288 { 0, 1 },
289 { 0, 1 },
290 { 0, 1 },
291 { 0, 1 },
292};
293
generated by cgit at 2024-05-17 03:40:32 (GMT)