4 * This file is part of FFmpeg.
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.
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.
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
29 #include "mpegvideo.h"
31 uint8_t ff_h263_static_rl_table_store[2][2][2 * MAX_RUN + MAX_LEVEL + 3];
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 };
37 /* inter MCBPC, mb_type = (inter), (intra), (interq), (intraq), (inter4v) */
38 /* Changed the tables for interq and inter4v+q, following the standard
40 const uint8_t ff_h263_inter_MCBPC_code[28] = {
46 1, 0, 0, 0, /* Stuffing */
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 */
59 const uint8_t ff_h263_mbtype_b_tab[15][2] = {
77 const uint8_t ff_cbpc_b_tab[4][2] = {
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 },
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 }
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 },
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,
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,
161 RLTable ff_h263_rl_inter = {
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 },
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,
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,
230 RLTable ff_rl_intra_aic = {
238 const uint16_t ff_h263_format[8][2] = {
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
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
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
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
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
267 const uint16_t ff_mba_max[6] = {
268 47, 98, 395, 1583, 6335, 9215
271 const uint8_t ff_mba_length[7] = {
272 6, 7, 9, 11, 13, 14, 14
275 const AVRational ff_h263_pixel_aspect[16] = {