FFmpeg
h263data.c
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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 
31 uint8_t ff_h263_static_rl_table_store[2][2][2 * MAX_RUN + MAX_LEVEL + 3];
32 
33 /* intra MCBPC, mb_type = (intra), then (intraq) */
34 const uint8_t ff_h263_intra_MCBPC_code[9] = { 1, 1, 2, 3, 1, 1, 2, 3, 1 };
35 const 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 ** */
40 const 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 };
49 const 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 
59 const 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 
77 const uint8_t ff_cbpc_b_tab[4][2] = {
78  { 0, 1 },
79  { 2, 2 },
80  { 7, 3 },
81  { 6, 3 },
82 };
83 
84 const 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 
90 const 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 */
100 const 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 
129 const 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 
145 const 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 
161 RLTable ff_h263_rl_inter = {
162  102,
163  58,
164  ff_inter_vlc,
165  ff_inter_run,
166  ff_inter_level,
167 };
168 
169 static 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 
198 static 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 
214 static 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 
230 RLTable ff_rl_intra_aic = {
231  102,
232  58,
233  intra_vlc_aic,
234  intra_run_aic,
235  intra_level_aic,
236 };
237 
238 const 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 
247 const 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 
252 const 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 
262 const 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 
267 const uint16_t ff_mba_max[6] = {
268  47, 98, 395, 1583, 6335, 9215
269 };
270 
271 const uint8_t ff_mba_length[7] = {
272  6, 7, 9, 11, 13, 14, 14
273 };
274 
275 const 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 };
h263data.h
MAX_RUN
#define MAX_RUN
Definition: rl.h:35
mpegvideo.h
ff_inter_run
const int8_t ff_inter_run[102]
Definition: h263data.c:145
ff_h263_pixel_aspect
const AVRational ff_h263_pixel_aspect[16]
Definition: h263data.c:275
RLTable
RLTable.
Definition: rl.h:39
intra_level_aic
static const int8_t intra_level_aic[102]
Definition: h263data.c:214
ff_cbpc_b_tab
const uint8_t ff_cbpc_b_tab[4][2]
Definition: h263data.c:77
ff_h263_chroma_qscale_table
const uint8_t ff_h263_chroma_qscale_table[32]
Definition: h263data.c:262
ff_inter_vlc
const uint16_t ff_inter_vlc[103][2]
Definition: h263data.c:100
ff_inter_level
const int8_t ff_inter_level[102]
Definition: h263data.c:129
AVRational
Rational number (pair of numerator and denominator).
Definition: rational.h:58
ff_mba_max
const uint16_t ff_mba_max[6]
Definition: h263data.c:267
MAX_LEVEL
#define MAX_LEVEL
Definition: rl.h:36
intra_run_aic
static const int8_t intra_run_aic[102]
Definition: h263data.c:198
ff_h263_rl_inter
RLTable ff_h263_rl_inter
Definition: h263data.c:161
ff_h263_cbpy_tab
const uint8_t ff_h263_cbpy_tab[16][2]
Definition: h263data.c:84
ff_rl_intra_aic
RLTable ff_rl_intra_aic
Definition: h263data.c:230
ff_h263_inter_MCBPC_bits
const uint8_t ff_h263_inter_MCBPC_bits[28]
Definition: h263data.c:49
ff_h263_format
const uint16_t ff_h263_format[8][2]
Definition: h263data.c:238
uint8_t
uint8_t
Definition: audio_convert.c:194
ff_aic_dc_scale_table
const uint8_t ff_aic_dc_scale_table[32]
Definition: h263data.c:247
ff_mvtab
const uint8_t ff_mvtab[33][2]
Definition: h263data.c:90
ff_h263_intra_MCBPC_bits
const uint8_t ff_h263_intra_MCBPC_bits[9]
Definition: h263data.c:35
ff_h263_static_rl_table_store
uint8_t ff_h263_static_rl_table_store[2][2][2 *MAX_RUN+MAX_LEVEL+3]
Definition: h263data.c:31
ff_h263_intra_MCBPC_code
const uint8_t ff_h263_intra_MCBPC_code[9]
Definition: h263data.c:34
ff_mba_length
const uint8_t ff_mba_length[7]
Definition: h263data.c:271
ff_h263_inter_MCBPC_code
const uint8_t ff_h263_inter_MCBPC_code[28]
Definition: h263data.c:40
ff_modified_quant_tab
const uint8_t ff_modified_quant_tab[2][32]
Definition: h263data.c:252
intra_vlc_aic
static const uint16_t intra_vlc_aic[103][2]
Definition: h263data.c:169
ff_h263_mbtype_b_tab
const uint8_t ff_h263_mbtype_b_tab[15][2]
Definition: h263data.c:59
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