2 * copyright (c) 2000,2001 Fabrice Bellard
4 * copyright (c) 2001 Juan J. Sierralta P.
5 * copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
7 * This library 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 of the License, or (at your option) any later version.
12 * This library 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.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
28 /* intra MCBPC, mb_type = (intra), then (intraq) */
29 const uint8_t intra_MCBPC_code[9] = { 1, 1, 2, 3, 1, 1, 2, 3, 1 };
30 const uint8_t intra_MCBPC_bits[9] = { 1, 3, 3, 3, 4, 6, 6, 6, 9 };
32 /* inter MCBPC, mb_type = (inter), (intra), (interq), (intraq), (inter4v) */
33 /* Changed the tables for interq and inter4v+q, following the standard ** Juanjo ** */
34 const uint8_t inter_MCBPC_code[28] = {
40 1, 0, 0, 0, /* Stuffing */
43 const uint8_t inter_MCBPC_bits[28] = {
44 1, 4, 4, 6, /* inter */
45 5, 8, 8, 7, /* intra */
46 3, 7, 7, 9, /* interQ */
47 6, 9, 9, 9, /* intraQ */
48 3, 7, 7, 8, /* inter4 */
49 9, 0, 0, 0, /* Stuffing */
50 11, 13, 13, 13,/* inter4Q*/
53 static const uint8_t h263_mbtype_b_tab[15][2] = {
71 static const int h263_mb_type_b_map[15]= {
72 MB_TYPE_DIRECT2 | MB_TYPE_L0L1,
73 MB_TYPE_DIRECT2 | MB_TYPE_L0L1 | MB_TYPE_CBP,
74 MB_TYPE_DIRECT2 | MB_TYPE_L0L1 | MB_TYPE_CBP | MB_TYPE_QUANT,
75 MB_TYPE_L0 | MB_TYPE_16x16,
76 MB_TYPE_L0 | MB_TYPE_CBP | MB_TYPE_16x16,
77 MB_TYPE_L0 | MB_TYPE_CBP | MB_TYPE_QUANT | MB_TYPE_16x16,
78 MB_TYPE_L1 | MB_TYPE_16x16,
79 MB_TYPE_L1 | MB_TYPE_CBP | MB_TYPE_16x16,
80 MB_TYPE_L1 | MB_TYPE_CBP | MB_TYPE_QUANT | MB_TYPE_16x16,
81 MB_TYPE_L0L1 | MB_TYPE_16x16,
82 MB_TYPE_L0L1 | MB_TYPE_CBP | MB_TYPE_16x16,
83 MB_TYPE_L0L1 | MB_TYPE_CBP | MB_TYPE_QUANT | MB_TYPE_16x16,
85 MB_TYPE_INTRA4x4 | MB_TYPE_CBP,
86 MB_TYPE_INTRA4x4 | MB_TYPE_CBP | MB_TYPE_QUANT,
89 const uint8_t cbpc_b_tab[4][2] = {
96 const uint8_t cbpy_tab[16][2] =
98 {3,4}, {5,5}, {4,5}, {9,4}, {3,5}, {7,4}, {2,6}, {11,4},
99 {2,5}, {3,6}, {5,4}, {10,4}, {4,4}, {8,4}, {6,4}, {3,2}
102 const uint8_t mvtab[33][2] =
104 {1,1}, {1,2}, {1,3}, {1,4}, {3,6}, {5,7}, {4,7}, {3,7},
105 {11,9}, {10,9}, {9,9}, {17,10}, {16,10}, {15,10}, {14,10}, {13,10},
106 {12,10}, {11,10}, {10,10}, {9,10}, {8,10}, {7,10}, {6,10}, {5,10},
107 {4,10}, {7,11}, {6,11}, {5,11}, {4,11}, {3,11}, {2,11}, {3,12},
111 /* third non intra table */
112 const uint16_t inter_vlc[103][2] = {
113 { 0x2, 2 },{ 0xf, 4 },{ 0x15, 6 },{ 0x17, 7 },
114 { 0x1f, 8 },{ 0x25, 9 },{ 0x24, 9 },{ 0x21, 10 },
115 { 0x20, 10 },{ 0x7, 11 },{ 0x6, 11 },{ 0x20, 11 },
116 { 0x6, 3 },{ 0x14, 6 },{ 0x1e, 8 },{ 0xf, 10 },
117 { 0x21, 11 },{ 0x50, 12 },{ 0xe, 4 },{ 0x1d, 8 },
118 { 0xe, 10 },{ 0x51, 12 },{ 0xd, 5 },{ 0x23, 9 },
119 { 0xd, 10 },{ 0xc, 5 },{ 0x22, 9 },{ 0x52, 12 },
120 { 0xb, 5 },{ 0xc, 10 },{ 0x53, 12 },{ 0x13, 6 },
121 { 0xb, 10 },{ 0x54, 12 },{ 0x12, 6 },{ 0xa, 10 },
122 { 0x11, 6 },{ 0x9, 10 },{ 0x10, 6 },{ 0x8, 10 },
123 { 0x16, 7 },{ 0x55, 12 },{ 0x15, 7 },{ 0x14, 7 },
124 { 0x1c, 8 },{ 0x1b, 8 },{ 0x21, 9 },{ 0x20, 9 },
125 { 0x1f, 9 },{ 0x1e, 9 },{ 0x1d, 9 },{ 0x1c, 9 },
126 { 0x1b, 9 },{ 0x1a, 9 },{ 0x22, 11 },{ 0x23, 11 },
127 { 0x56, 12 },{ 0x57, 12 },{ 0x7, 4 },{ 0x19, 9 },
128 { 0x5, 11 },{ 0xf, 6 },{ 0x4, 11 },{ 0xe, 6 },
129 { 0xd, 6 },{ 0xc, 6 },{ 0x13, 7 },{ 0x12, 7 },
130 { 0x11, 7 },{ 0x10, 7 },{ 0x1a, 8 },{ 0x19, 8 },
131 { 0x18, 8 },{ 0x17, 8 },{ 0x16, 8 },{ 0x15, 8 },
132 { 0x14, 8 },{ 0x13, 8 },{ 0x18, 9 },{ 0x17, 9 },
133 { 0x16, 9 },{ 0x15, 9 },{ 0x14, 9 },{ 0x13, 9 },
134 { 0x12, 9 },{ 0x11, 9 },{ 0x7, 10 },{ 0x6, 10 },
135 { 0x5, 10 },{ 0x4, 10 },{ 0x24, 11 },{ 0x25, 11 },
136 { 0x26, 11 },{ 0x27, 11 },{ 0x58, 12 },{ 0x59, 12 },
137 { 0x5a, 12 },{ 0x5b, 12 },{ 0x5c, 12 },{ 0x5d, 12 },
138 { 0x5e, 12 },{ 0x5f, 12 },{ 0x3, 7 },
141 const int8_t inter_level[102] = {
142 1, 2, 3, 4, 5, 6, 7, 8,
143 9, 10, 11, 12, 1, 2, 3, 4,
144 5, 6, 1, 2, 3, 4, 1, 2,
145 3, 1, 2, 3, 1, 2, 3, 1,
146 2, 3, 1, 2, 1, 2, 1, 2,
147 1, 2, 1, 1, 1, 1, 1, 1,
148 1, 1, 1, 1, 1, 1, 1, 1,
149 1, 1, 1, 2, 3, 1, 2, 1,
150 1, 1, 1, 1, 1, 1, 1, 1,
151 1, 1, 1, 1, 1, 1, 1, 1,
152 1, 1, 1, 1, 1, 1, 1, 1,
153 1, 1, 1, 1, 1, 1, 1, 1,
157 const int8_t inter_run[102] = {
158 0, 0, 0, 0, 0, 0, 0, 0,
159 0, 0, 0, 0, 1, 1, 1, 1,
160 1, 1, 2, 2, 2, 2, 3, 3,
161 3, 4, 4, 4, 5, 5, 5, 6,
162 6, 6, 7, 7, 8, 8, 9, 9,
163 10, 10, 11, 12, 13, 14, 15, 16,
164 17, 18, 19, 20, 21, 22, 23, 24,
165 25, 26, 0, 0, 0, 1, 1, 2,
166 3, 4, 5, 6, 7, 8, 9, 10,
167 11, 12, 13, 14, 15, 16, 17, 18,
168 19, 20, 21, 22, 23, 24, 25, 26,
169 27, 28, 29, 30, 31, 32, 33, 34,
170 35, 36, 37, 38, 39, 40,
173 static RLTable rl_inter = {
181 const uint16_t intra_vlc_aic[103][2] = {
182 { 0x2, 2 }, { 0x6, 3 }, { 0xe, 4 }, { 0xc, 5 },
183 { 0xd, 5 }, { 0x10, 6 }, { 0x11, 6 }, { 0x12, 6 },
184 { 0x16, 7 }, { 0x1b, 8 }, { 0x20, 9 }, { 0x21, 9 },
185 { 0x1a, 9 }, { 0x1b, 9 }, { 0x1c, 9 }, { 0x1d, 9 },
186 { 0x1e, 9 }, { 0x1f, 9 }, { 0x23, 11 }, { 0x22, 11 },
187 { 0x57, 12 }, { 0x56, 12 }, { 0x55, 12 }, { 0x54, 12 },
188 { 0x53, 12 }, { 0xf, 4 }, { 0x14, 6 }, { 0x14, 7 },
189 { 0x1e, 8 }, { 0xf, 10 }, { 0x21, 11 }, { 0x50, 12 },
190 { 0xb, 5 }, { 0x15, 7 }, { 0xe, 10 }, { 0x9, 10 },
191 { 0x15, 6 }, { 0x1d, 8 }, { 0xd, 10 }, { 0x51, 12 },
192 { 0x13, 6 }, { 0x23, 9 }, { 0x7, 11 }, { 0x17, 7 },
193 { 0x22, 9 }, { 0x52, 12 }, { 0x1c, 8 }, { 0xc, 10 },
194 { 0x1f, 8 }, { 0xb, 10 }, { 0x25, 9 }, { 0xa, 10 },
195 { 0x24, 9 }, { 0x6, 11 }, { 0x21, 10 }, { 0x20, 10 },
196 { 0x8, 10 }, { 0x20, 11 }, { 0x7, 4 }, { 0xc, 6 },
197 { 0x10, 7 }, { 0x13, 8 }, { 0x11, 9 }, { 0x12, 9 },
198 { 0x4, 10 }, { 0x27, 11 }, { 0x26, 11 }, { 0x5f, 12 },
199 { 0xf, 6 }, { 0x13, 9 }, { 0x5, 10 }, { 0x25, 11 },
200 { 0xe, 6 }, { 0x14, 9 }, { 0x24, 11 }, { 0xd, 6 },
201 { 0x6, 10 }, { 0x5e, 12 }, { 0x11, 7 }, { 0x7, 10 },
202 { 0x13, 7 }, { 0x5d, 12 }, { 0x12, 7 }, { 0x5c, 12 },
203 { 0x14, 8 }, { 0x5b, 12 }, { 0x15, 8 }, { 0x1a, 8 },
204 { 0x19, 8 }, { 0x18, 8 }, { 0x17, 8 }, { 0x16, 8 },
205 { 0x19, 9 }, { 0x15, 9 }, { 0x16, 9 }, { 0x18, 9 },
206 { 0x17, 9 }, { 0x4, 11 }, { 0x5, 11 }, { 0x58, 12 },
207 { 0x59, 12 }, { 0x5a, 12 }, { 0x3, 7 },
210 const int8_t intra_run_aic[102] = {
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, 1, 1, 1, 1, 1, 1, 1,
215 2, 2, 2, 2, 3, 3, 3, 3,
216 4, 4, 4, 5, 5, 5, 6, 6,
217 7, 7, 8, 8, 9, 9, 10, 11,
218 12, 13, 0, 0, 0, 0, 0, 0,
219 0, 0, 0, 0, 1, 1, 1, 1,
220 2, 2, 2, 3, 3, 3, 4, 4,
221 5, 5, 6, 6, 7, 7, 8, 9,
222 10, 11, 12, 13, 14, 15, 16, 17,
223 18, 19, 20, 21, 22, 23,
226 const int8_t intra_level_aic[102] = {
227 1, 2, 3, 4, 5, 6, 7, 8,
228 9, 10, 11, 12, 13, 14, 15, 16,
229 17, 18, 19, 20, 21, 22, 23, 24,
230 25, 1, 2, 3, 4, 5, 6, 7,
231 1, 2, 3, 4, 1, 2, 3, 4,
232 1, 2, 3, 1, 2, 3, 1, 2,
233 1, 2, 1, 2, 1, 2, 1, 1,
234 1, 1, 1, 2, 3, 4, 5, 6,
235 7, 8, 9, 10, 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, 1, 1, 1, 1, 1,
242 static RLTable rl_intra_aic = {
250 static const uint8_t wrong_run[102] = {
251 1, 2, 3, 5, 4, 10, 9, 8,
252 11, 15, 17, 16, 23, 22, 21, 20,
253 19, 18, 25, 24, 27, 26, 11, 7,
254 6, 1, 2, 13, 2, 2, 2, 2,
255 6, 12, 3, 9, 1, 3, 4, 3,
256 7, 4, 1, 1, 5, 5, 14, 6,
257 1, 7, 1, 8, 1, 1, 1, 1,
258 10, 1, 1, 5, 9, 17, 25, 24,
259 29, 33, 32, 41, 2, 23, 28, 31,
260 3, 22, 30, 4, 27, 40, 8, 26,
261 6, 39, 7, 38, 16, 37, 15, 10,
262 11, 12, 13, 14, 1, 21, 20, 18,
266 static const uint16_t h263_format[8][2] = {
275 const uint8_t ff_aic_dc_scale_table[32]={
276 // 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
277 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
280 static const uint8_t modified_quant_tab[2][32]={
281 // 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
283 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
285 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
289 const uint8_t ff_h263_chroma_qscale_table[32]={
290 // 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
291 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
294 const uint16_t ff_mba_max[6]={
295 47, 98, 395,1583,6335,9215
298 const uint8_t ff_mba_length[7]={
299 6, 7, 9, 11, 13, 14, 14
302 const uint8_t ff_h263_loop_filter_strength[32]={
303 // 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
304 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