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 }; 293