e0366aaf98a8944e656304c6457222b766ba7849
[libav.git] / libavcodec / h263data.h
1 /*
2 * copyright (c) 2000,2001 Fabrice Bellard
3 * H263+ support
4 * copyright (c) 2001 Juan J. Sierralta P.
5 * copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
6 *
7 * This file is part of FFmpeg.
8 *
9 * FFmpeg is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * FFmpeg 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 GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with FFmpeg; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 */
23
24 /**
25 * @file h263data.h
26 * H.263 tables.
27 */
28
29 #include <stdint.h>
30 #include "mpegvideo.h"
31
32 /* intra MCBPC, mb_type = (intra), then (intraq) */
33 const uint8_t intra_MCBPC_code[9] = { 1, 1, 2, 3, 1, 1, 2, 3, 1 };
34 const uint8_t intra_MCBPC_bits[9] = { 1, 3, 3, 3, 4, 6, 6, 6, 9 };
35
36 /* inter MCBPC, mb_type = (inter), (intra), (interq), (intraq), (inter4v) */
37 /* Changed the tables for interq and inter4v+q, following the standard ** Juanjo ** */
38 const uint8_t inter_MCBPC_code[28] = {
39 1, 3, 2, 5,
40 3, 4, 3, 3,
41 3, 7, 6, 5,
42 4, 4, 3, 2,
43 2, 5, 4, 5,
44 1, 0, 0, 0, /* Stuffing */
45 2, 12, 14, 15,
46 };
47 const uint8_t inter_MCBPC_bits[28] = {
48 1, 4, 4, 6, /* inter */
49 5, 8, 8, 7, /* intra */
50 3, 7, 7, 9, /* interQ */
51 6, 9, 9, 9, /* intraQ */
52 3, 7, 7, 8, /* inter4 */
53 9, 0, 0, 0, /* Stuffing */
54 11, 13, 13, 13,/* inter4Q*/
55 };
56
57 static const uint8_t h263_mbtype_b_tab[15][2] = {
58 {1, 1},
59 {3, 3},
60 {1, 5},
61 {4, 4},
62 {5, 4},
63 {6, 6},
64 {2, 4},
65 {3, 4},
66 {7, 6},
67 {4, 6},
68 {5, 6},
69 {1, 6},
70 {1,10},
71 {1, 7},
72 {1, 8},
73 };
74
75 static const int h263_mb_type_b_map[15]= {
76 MB_TYPE_DIRECT2 | MB_TYPE_L0L1,
77 MB_TYPE_DIRECT2 | MB_TYPE_L0L1 | MB_TYPE_CBP,
78 MB_TYPE_DIRECT2 | MB_TYPE_L0L1 | MB_TYPE_CBP | MB_TYPE_QUANT,
79 MB_TYPE_L0 | MB_TYPE_16x16,
80 MB_TYPE_L0 | MB_TYPE_CBP | MB_TYPE_16x16,
81 MB_TYPE_L0 | MB_TYPE_CBP | MB_TYPE_QUANT | MB_TYPE_16x16,
82 MB_TYPE_L1 | MB_TYPE_16x16,
83 MB_TYPE_L1 | MB_TYPE_CBP | MB_TYPE_16x16,
84 MB_TYPE_L1 | MB_TYPE_CBP | MB_TYPE_QUANT | MB_TYPE_16x16,
85 MB_TYPE_L0L1 | MB_TYPE_16x16,
86 MB_TYPE_L0L1 | MB_TYPE_CBP | MB_TYPE_16x16,
87 MB_TYPE_L0L1 | MB_TYPE_CBP | MB_TYPE_QUANT | MB_TYPE_16x16,
88 0, //stuffing
89 MB_TYPE_INTRA4x4 | MB_TYPE_CBP,
90 MB_TYPE_INTRA4x4 | MB_TYPE_CBP | MB_TYPE_QUANT,
91 };
92
93 static const uint8_t cbpc_b_tab[4][2] = {
94 {0, 1},
95 {2, 2},
96 {7, 3},
97 {6, 3},
98 };
99
100 const uint8_t cbpy_tab[16][2] =
101 {
102 {3,4}, {5,5}, {4,5}, {9,4}, {3,5}, {7,4}, {2,6}, {11,4},
103 {2,5}, {3,6}, {5,4}, {10,4}, {4,4}, {8,4}, {6,4}, {3,2}
104 };
105
106 const uint8_t mvtab[33][2] =
107 {
108 {1,1}, {1,2}, {1,3}, {1,4}, {3,6}, {5,7}, {4,7}, {3,7},
109 {11,9}, {10,9}, {9,9}, {17,10}, {16,10}, {15,10}, {14,10}, {13,10},
110 {12,10}, {11,10}, {10,10}, {9,10}, {8,10}, {7,10}, {6,10}, {5,10},
111 {4,10}, {7,11}, {6,11}, {5,11}, {4,11}, {3,11}, {2,11}, {3,12},
112 {2,12}
113 };
114
115 /* third non intra table */
116 const uint16_t inter_vlc[103][2] = {
117 { 0x2, 2 },{ 0xf, 4 },{ 0x15, 6 },{ 0x17, 7 },
118 { 0x1f, 8 },{ 0x25, 9 },{ 0x24, 9 },{ 0x21, 10 },
119 { 0x20, 10 },{ 0x7, 11 },{ 0x6, 11 },{ 0x20, 11 },
120 { 0x6, 3 },{ 0x14, 6 },{ 0x1e, 8 },{ 0xf, 10 },
121 { 0x21, 11 },{ 0x50, 12 },{ 0xe, 4 },{ 0x1d, 8 },
122 { 0xe, 10 },{ 0x51, 12 },{ 0xd, 5 },{ 0x23, 9 },
123 { 0xd, 10 },{ 0xc, 5 },{ 0x22, 9 },{ 0x52, 12 },
124 { 0xb, 5 },{ 0xc, 10 },{ 0x53, 12 },{ 0x13, 6 },
125 { 0xb, 10 },{ 0x54, 12 },{ 0x12, 6 },{ 0xa, 10 },
126 { 0x11, 6 },{ 0x9, 10 },{ 0x10, 6 },{ 0x8, 10 },
127 { 0x16, 7 },{ 0x55, 12 },{ 0x15, 7 },{ 0x14, 7 },
128 { 0x1c, 8 },{ 0x1b, 8 },{ 0x21, 9 },{ 0x20, 9 },
129 { 0x1f, 9 },{ 0x1e, 9 },{ 0x1d, 9 },{ 0x1c, 9 },
130 { 0x1b, 9 },{ 0x1a, 9 },{ 0x22, 11 },{ 0x23, 11 },
131 { 0x56, 12 },{ 0x57, 12 },{ 0x7, 4 },{ 0x19, 9 },
132 { 0x5, 11 },{ 0xf, 6 },{ 0x4, 11 },{ 0xe, 6 },
133 { 0xd, 6 },{ 0xc, 6 },{ 0x13, 7 },{ 0x12, 7 },
134 { 0x11, 7 },{ 0x10, 7 },{ 0x1a, 8 },{ 0x19, 8 },
135 { 0x18, 8 },{ 0x17, 8 },{ 0x16, 8 },{ 0x15, 8 },
136 { 0x14, 8 },{ 0x13, 8 },{ 0x18, 9 },{ 0x17, 9 },
137 { 0x16, 9 },{ 0x15, 9 },{ 0x14, 9 },{ 0x13, 9 },
138 { 0x12, 9 },{ 0x11, 9 },{ 0x7, 10 },{ 0x6, 10 },
139 { 0x5, 10 },{ 0x4, 10 },{ 0x24, 11 },{ 0x25, 11 },
140 { 0x26, 11 },{ 0x27, 11 },{ 0x58, 12 },{ 0x59, 12 },
141 { 0x5a, 12 },{ 0x5b, 12 },{ 0x5c, 12 },{ 0x5d, 12 },
142 { 0x5e, 12 },{ 0x5f, 12 },{ 0x3, 7 },
143 };
144
145 const int8_t inter_level[102] = {
146 1, 2, 3, 4, 5, 6, 7, 8,
147 9, 10, 11, 12, 1, 2, 3, 4,
148 5, 6, 1, 2, 3, 4, 1, 2,
149 3, 1, 2, 3, 1, 2, 3, 1,
150 2, 3, 1, 2, 1, 2, 1, 2,
151 1, 2, 1, 1, 1, 1, 1, 1,
152 1, 1, 1, 1, 1, 1, 1, 1,
153 1, 1, 1, 2, 3, 1, 2, 1,
154 1, 1, 1, 1, 1, 1, 1, 1,
155 1, 1, 1, 1, 1, 1, 1, 1,
156 1, 1, 1, 1, 1, 1, 1, 1,
157 1, 1, 1, 1, 1, 1, 1, 1,
158 1, 1, 1, 1, 1, 1,
159 };
160
161 const int8_t inter_run[102] = {
162 0, 0, 0, 0, 0, 0, 0, 0,
163 0, 0, 0, 0, 1, 1, 1, 1,
164 1, 1, 2, 2, 2, 2, 3, 3,
165 3, 4, 4, 4, 5, 5, 5, 6,
166 6, 6, 7, 7, 8, 8, 9, 9,
167 10, 10, 11, 12, 13, 14, 15, 16,
168 17, 18, 19, 20, 21, 22, 23, 24,
169 25, 26, 0, 0, 0, 1, 1, 2,
170 3, 4, 5, 6, 7, 8, 9, 10,
171 11, 12, 13, 14, 15, 16, 17, 18,
172 19, 20, 21, 22, 23, 24, 25, 26,
173 27, 28, 29, 30, 31, 32, 33, 34,
174 35, 36, 37, 38, 39, 40,
175 };
176
177 static RLTable rl_inter = {
178 102,
179 58,
180 inter_vlc,
181 inter_run,
182 inter_level,
183 };
184
185 static const uint16_t intra_vlc_aic[103][2] = {
186 { 0x2, 2 }, { 0x6, 3 }, { 0xe, 4 }, { 0xc, 5 },
187 { 0xd, 5 }, { 0x10, 6 }, { 0x11, 6 }, { 0x12, 6 },
188 { 0x16, 7 }, { 0x1b, 8 }, { 0x20, 9 }, { 0x21, 9 },
189 { 0x1a, 9 }, { 0x1b, 9 }, { 0x1c, 9 }, { 0x1d, 9 },
190 { 0x1e, 9 }, { 0x1f, 9 }, { 0x23, 11 }, { 0x22, 11 },
191 { 0x57, 12 }, { 0x56, 12 }, { 0x55, 12 }, { 0x54, 12 },
192 { 0x53, 12 }, { 0xf, 4 }, { 0x14, 6 }, { 0x14, 7 },
193 { 0x1e, 8 }, { 0xf, 10 }, { 0x21, 11 }, { 0x50, 12 },
194 { 0xb, 5 }, { 0x15, 7 }, { 0xe, 10 }, { 0x9, 10 },
195 { 0x15, 6 }, { 0x1d, 8 }, { 0xd, 10 }, { 0x51, 12 },
196 { 0x13, 6 }, { 0x23, 9 }, { 0x7, 11 }, { 0x17, 7 },
197 { 0x22, 9 }, { 0x52, 12 }, { 0x1c, 8 }, { 0xc, 10 },
198 { 0x1f, 8 }, { 0xb, 10 }, { 0x25, 9 }, { 0xa, 10 },
199 { 0x24, 9 }, { 0x6, 11 }, { 0x21, 10 }, { 0x20, 10 },
200 { 0x8, 10 }, { 0x20, 11 }, { 0x7, 4 }, { 0xc, 6 },
201 { 0x10, 7 }, { 0x13, 8 }, { 0x11, 9 }, { 0x12, 9 },
202 { 0x4, 10 }, { 0x27, 11 }, { 0x26, 11 }, { 0x5f, 12 },
203 { 0xf, 6 }, { 0x13, 9 }, { 0x5, 10 }, { 0x25, 11 },
204 { 0xe, 6 }, { 0x14, 9 }, { 0x24, 11 }, { 0xd, 6 },
205 { 0x6, 10 }, { 0x5e, 12 }, { 0x11, 7 }, { 0x7, 10 },
206 { 0x13, 7 }, { 0x5d, 12 }, { 0x12, 7 }, { 0x5c, 12 },
207 { 0x14, 8 }, { 0x5b, 12 }, { 0x15, 8 }, { 0x1a, 8 },
208 { 0x19, 8 }, { 0x18, 8 }, { 0x17, 8 }, { 0x16, 8 },
209 { 0x19, 9 }, { 0x15, 9 }, { 0x16, 9 }, { 0x18, 9 },
210 { 0x17, 9 }, { 0x4, 11 }, { 0x5, 11 }, { 0x58, 12 },
211 { 0x59, 12 }, { 0x5a, 12 }, { 0x3, 7 },
212 };
213
214 static const int8_t intra_run_aic[102] = {
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, 1, 1, 1, 1, 1, 1, 1,
219 2, 2, 2, 2, 3, 3, 3, 3,
220 4, 4, 4, 5, 5, 5, 6, 6,
221 7, 7, 8, 8, 9, 9, 10, 11,
222 12, 13, 0, 0, 0, 0, 0, 0,
223 0, 0, 0, 0, 1, 1, 1, 1,
224 2, 2, 2, 3, 3, 3, 4, 4,
225 5, 5, 6, 6, 7, 7, 8, 9,
226 10, 11, 12, 13, 14, 15, 16, 17,
227 18, 19, 20, 21, 22, 23,
228 };
229
230 static const int8_t intra_level_aic[102] = {
231 1, 2, 3, 4, 5, 6, 7, 8,
232 9, 10, 11, 12, 13, 14, 15, 16,
233 17, 18, 19, 20, 21, 22, 23, 24,
234 25, 1, 2, 3, 4, 5, 6, 7,
235 1, 2, 3, 4, 1, 2, 3, 4,
236 1, 2, 3, 1, 2, 3, 1, 2,
237 1, 2, 1, 2, 1, 2, 1, 1,
238 1, 1, 1, 2, 3, 4, 5, 6,
239 7, 8, 9, 10, 1, 2, 3, 4,
240 1, 2, 3, 1, 2, 3, 1, 2,
241 1, 2, 1, 2, 1, 2, 1, 1,
242 1, 1, 1, 1, 1, 1, 1, 1,
243 1, 1, 1, 1, 1, 1,
244 };
245
246 static RLTable rl_intra_aic = {
247 102,
248 58,
249 intra_vlc_aic,
250 intra_run_aic,
251 intra_level_aic,
252 };
253
254 static const uint8_t wrong_run[102] = {
255 1, 2, 3, 5, 4, 10, 9, 8,
256 11, 15, 17, 16, 23, 22, 21, 20,
257 19, 18, 25, 24, 27, 26, 11, 7,
258 6, 1, 2, 13, 2, 2, 2, 2,
259 6, 12, 3, 9, 1, 3, 4, 3,
260 7, 4, 1, 1, 5, 5, 14, 6,
261 1, 7, 1, 8, 1, 1, 1, 1,
262 10, 1, 1, 5, 9, 17, 25, 24,
263 29, 33, 32, 41, 2, 23, 28, 31,
264 3, 22, 30, 4, 27, 40, 8, 26,
265 6, 39, 7, 38, 16, 37, 15, 10,
266 11, 12, 13, 14, 1, 21, 20, 18,
267 19, 2, 1, 34, 35, 36
268 };
269
270 static const uint16_t h263_format[8][2] = {
271 { 0, 0 },
272 { 128, 96 },
273 { 176, 144 },
274 { 352, 288 },
275 { 704, 576 },
276 { 1408, 1152 },
277 };
278
279 const uint8_t ff_aic_dc_scale_table[32]={
280 // 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
281 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
282 };
283
284 static const uint8_t modified_quant_tab[2][32]={
285 // 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
286 {
287 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
288 },{
289 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
290 }
291 };
292
293 const uint8_t ff_h263_chroma_qscale_table[32]={
294 // 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
295 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
296 };
297
298 const uint16_t ff_mba_max[6]={
299 47, 98, 395,1583,6335,9215
300 };
301
302 const uint8_t ff_mba_length[7]={
303 6, 7, 9, 11, 13, 14, 14
304 };
305
306 const uint8_t ff_h263_loop_filter_strength[32]={
307 // 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
308 0, 1, 1, 2, 2, 3, 3, 4, 4, 4, 5, 5, 6, 6, 7, 7, 7, 8, 8, 8, 9, 9, 9,10,10,10,11,11,11,12,12,12
309 };
310