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 /* intra MCBPC, mb_type = (intra), then (intraq) */ 32 const uint8_t ff_h263_intra_MCBPC_code[9] = { 1, 1, 2, 3, 1, 1, 2, 3, 1 }; 33 const uint8_t ff_h263_intra_MCBPC_bits[9] = { 1, 3, 3, 3, 4, 6, 6, 6, 9 }; 34 35 /* inter MCBPC, mb_type = (inter), (intra), (interq), (intraq), (inter4v) */ 36 /* Changed the tables for interq and inter4v+q, following the standard 37 * ** Juanjo ** */ 38 const uint8_t ff_h263_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 ff_h263_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 const uint8_t ff_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 const uint8_t ff_cbpc_b_tab[4][2] = { 76 { 0, 1 }, 77 { 2, 2 }, 78 { 7, 3 }, 79 { 6, 3 }, 80 }; 81 82 const uint8_t ff_h263_cbpy_tab[16][2] = { 83 { 3, 4 }, { 5, 5 }, { 4, 5 }, { 9, 4 }, { 3, 5 }, { 7, 4 }, { 2, 6 }, 84 { 11, 4 }, { 2, 5 }, { 3, 6 }, { 5, 4 }, { 10, 4 }, { 4, 4 }, { 8, 4 }, 85 { 6, 4 }, { 3, 2 } 86 }; 87 88 const uint8_t ff_mvtab[33][2] = { 89 { 1, 1 }, { 1, 2 }, { 1, 3 }, { 1, 4 }, { 3, 6 }, { 5, 7 }, 90 { 4, 7 }, { 3, 7 }, { 11, 9 }, { 10, 9 }, { 9, 9 }, { 17, 10 }, 91 { 16, 10 }, { 15, 10 }, { 14, 10 }, { 13, 10 }, { 12, 10 }, { 11, 10 }, 92 { 10, 10 }, { 9, 10 }, { 8, 10 }, { 7, 10 }, { 6, 10 }, { 5, 10 }, 93 { 4, 10 }, { 7, 11 }, { 6, 11 }, { 5, 11 }, { 4, 11 }, { 3, 11 }, 94 { 2, 11 }, { 3, 12 }, { 2, 12 } 95 }; 96 97 /* third non intra table */ 98 const uint16_t ff_inter_vlc[103][2] = { 99 { 0x2, 2 }, { 0xf, 4 }, { 0x15, 6 }, { 0x17, 7 }, 100 { 0x1f, 8 }, { 0x25, 9 }, { 0x24, 9 }, { 0x21, 10 }, 101 { 0x20, 10 }, { 0x7, 11 }, { 0x6, 11 }, { 0x20, 11 }, 102 { 0x6, 3 }, { 0x14, 6 }, { 0x1e, 8 }, { 0xf, 10 }, 103 { 0x21, 11 }, { 0x50, 12 }, { 0xe, 4 }, { 0x1d, 8 }, 104 { 0xe, 10 }, { 0x51, 12 }, { 0xd, 5 }, { 0x23, 9 }, 105 { 0xd, 10 }, { 0xc, 5 }, { 0x22, 9 }, { 0x52, 12 }, 106 { 0xb, 5 }, { 0xc, 10 }, { 0x53, 12 }, { 0x13, 6 }, 107 { 0xb, 10 }, { 0x54, 12 }, { 0x12, 6 }, { 0xa, 10 }, 108 { 0x11, 6 }, { 0x9, 10 }, { 0x10, 6 }, { 0x8, 10 }, 109 { 0x16, 7 }, { 0x55, 12 }, { 0x15, 7 }, { 0x14, 7 }, 110 { 0x1c, 8 }, { 0x1b, 8 }, { 0x21, 9 }, { 0x20, 9 }, 111 { 0x1f, 9 }, { 0x1e, 9 }, { 0x1d, 9 }, { 0x1c, 9 }, 112 { 0x1b, 9 }, { 0x1a, 9 }, { 0x22, 11 }, { 0x23, 11 }, 113 { 0x56, 12 }, { 0x57, 12 }, { 0x7, 4 }, { 0x19, 9 }, 114 { 0x5, 11 }, { 0xf, 6 }, { 0x4, 11 }, { 0xe, 6 }, 115 { 0xd, 6 }, { 0xc, 6 }, { 0x13, 7 }, { 0x12, 7 }, 116 { 0x11, 7 }, { 0x10, 7 }, { 0x1a, 8 }, { 0x19, 8 }, 117 { 0x18, 8 }, { 0x17, 8 }, { 0x16, 8 }, { 0x15, 8 }, 118 { 0x14, 8 }, { 0x13, 8 }, { 0x18, 9 }, { 0x17, 9 }, 119 { 0x16, 9 }, { 0x15, 9 }, { 0x14, 9 }, { 0x13, 9 }, 120 { 0x12, 9 }, { 0x11, 9 }, { 0x7, 10 }, { 0x6, 10 }, 121 { 0x5, 10 }, { 0x4, 10 }, { 0x24, 11 }, { 0x25, 11 }, 122 { 0x26, 11 }, { 0x27, 11 }, { 0x58, 12 }, { 0x59, 12 }, 123 { 0x5a, 12 }, { 0x5b, 12 }, { 0x5c, 12 }, { 0x5d, 12 }, 124 { 0x5e, 12 }, { 0x5f, 12 }, { 0x3, 7 }, 125 }; 126 127 const int8_t ff_inter_level[102] = { 128 1, 2, 3, 4, 5, 6, 7, 8, 129 9, 10, 11, 12, 1, 2, 3, 4, 130 5, 6, 1, 2, 3, 4, 1, 2, 131 3, 1, 2, 3, 1, 2, 3, 1, 132 2, 3, 1, 2, 1, 2, 1, 2, 133 1, 2, 1, 1, 1, 1, 1, 1, 134 1, 1, 1, 1, 1, 1, 1, 1, 135 1, 1, 1, 2, 3, 1, 2, 1, 136 1, 1, 1, 1, 1, 1, 1, 1, 137 1, 1, 1, 1, 1, 1, 1, 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, 141 }; 142 143 const int8_t ff_inter_run[102] = { 144 0, 0, 0, 0, 0, 0, 0, 0, 145 0, 0, 0, 0, 1, 1, 1, 1, 146 1, 1, 2, 2, 2, 2, 3, 3, 147 3, 4, 4, 4, 5, 5, 5, 6, 148 6, 6, 7, 7, 8, 8, 9, 9, 149 10, 10, 11, 12, 13, 14, 15, 16, 150 17, 18, 19, 20, 21, 22, 23, 24, 151 25, 26, 0, 0, 0, 1, 1, 2, 152 3, 4, 5, 6, 7, 8, 9, 10, 153 11, 12, 13, 14, 15, 16, 17, 18, 154 19, 20, 21, 22, 23, 24, 25, 26, 155 27, 28, 29, 30, 31, 32, 33, 34, 156 35, 36, 37, 38, 39, 40, 157 }; 158 159 RLTable ff_h263_rl_inter = { 160 102, 161 58, 162 ff_inter_vlc, 163 ff_inter_run, 164 ff_inter_level, 165 }; 166 167 static const uint16_t intra_vlc_aic[103][2] = { 168 { 0x2, 2 }, { 0x6, 3 }, { 0xe, 4 }, { 0xc, 5 }, 169 { 0xd, 5 }, { 0x10, 6 }, { 0x11, 6 }, { 0x12, 6 }, 170 { 0x16, 7 }, { 0x1b, 8 }, { 0x20, 9 }, { 0x21, 9 }, 171 { 0x1a, 9 }, { 0x1b, 9 }, { 0x1c, 9 }, { 0x1d, 9 }, 172 { 0x1e, 9 }, { 0x1f, 9 }, { 0x23, 11 }, { 0x22, 11 }, 173 { 0x57, 12 }, { 0x56, 12 }, { 0x55, 12 }, { 0x54, 12 }, 174 { 0x53, 12 }, { 0xf, 4 }, { 0x14, 6 }, { 0x14, 7 }, 175 { 0x1e, 8 }, { 0xf, 10 }, { 0x21, 11 }, { 0x50, 12 }, 176 { 0xb, 5 }, { 0x15, 7 }, { 0xe, 10 }, { 0x9, 10 }, 177 { 0x15, 6 }, { 0x1d, 8 }, { 0xd, 10 }, { 0x51, 12 }, 178 { 0x13, 6 }, { 0x23, 9 }, { 0x7, 11 }, { 0x17, 7 }, 179 { 0x22, 9 }, { 0x52, 12 }, { 0x1c, 8 }, { 0xc, 10 }, 180 { 0x1f, 8 }, { 0xb, 10 }, { 0x25, 9 }, { 0xa, 10 }, 181 { 0x24, 9 }, { 0x6, 11 }, { 0x21, 10 }, { 0x20, 10 }, 182 { 0x8, 10 }, { 0x20, 11 }, { 0x7, 4 }, { 0xc, 6 }, 183 { 0x10, 7 }, { 0x13, 8 }, { 0x11, 9 }, { 0x12, 9 }, 184 { 0x4, 10 }, { 0x27, 11 }, { 0x26, 11 }, { 0x5f, 12 }, 185 { 0xf, 6 }, { 0x13, 9 }, { 0x5, 10 }, { 0x25, 11 }, 186 { 0xe, 6 }, { 0x14, 9 }, { 0x24, 11 }, { 0xd, 6 }, 187 { 0x6, 10 }, { 0x5e, 12 }, { 0x11, 7 }, { 0x7, 10 }, 188 { 0x13, 7 }, { 0x5d, 12 }, { 0x12, 7 }, { 0x5c, 12 }, 189 { 0x14, 8 }, { 0x5b, 12 }, { 0x15, 8 }, { 0x1a, 8 }, 190 { 0x19, 8 }, { 0x18, 8 }, { 0x17, 8 }, { 0x16, 8 }, 191 { 0x19, 9 }, { 0x15, 9 }, { 0x16, 9 }, { 0x18, 9 }, 192 { 0x17, 9 }, { 0x4, 11 }, { 0x5, 11 }, { 0x58, 12 }, 193 { 0x59, 12 }, { 0x5a, 12 }, { 0x3, 7 }, 194 }; 195 196 static const int8_t intra_run_aic[102] = { 197 0, 0, 0, 0, 0, 0, 0, 0, 198 0, 0, 0, 0, 0, 0, 0, 0, 199 0, 0, 0, 0, 0, 0, 0, 0, 200 0, 1, 1, 1, 1, 1, 1, 1, 201 2, 2, 2, 2, 3, 3, 3, 3, 202 4, 4, 4, 5, 5, 5, 6, 6, 203 7, 7, 8, 8, 9, 9, 10, 11, 204 12, 13, 0, 0, 0, 0, 0, 0, 205 0, 0, 0, 0, 1, 1, 1, 1, 206 2, 2, 2, 3, 3, 3, 4, 4, 207 5, 5, 6, 6, 7, 7, 8, 9, 208 10, 11, 12, 13, 14, 15, 16, 17, 209 18, 19, 20, 21, 22, 23, 210 }; 211 212 static const int8_t intra_level_aic[102] = { 213 1, 2, 3, 4, 5, 6, 7, 8, 214 9, 10, 11, 12, 13, 14, 15, 16, 215 17, 18, 19, 20, 21, 22, 23, 24, 216 25, 1, 2, 3, 4, 5, 6, 7, 217 1, 2, 3, 4, 1, 2, 3, 4, 218 1, 2, 3, 1, 2, 3, 1, 2, 219 1, 2, 1, 2, 1, 2, 1, 1, 220 1, 1, 1, 2, 3, 4, 5, 6, 221 7, 8, 9, 10, 1, 2, 3, 4, 222 1, 2, 3, 1, 2, 3, 1, 2, 223 1, 2, 1, 2, 1, 2, 1, 1, 224 1, 1, 1, 1, 1, 1, 1, 1, 225 1, 1, 1, 1, 1, 1, 226 }; 227 228 RLTable ff_rl_intra_aic = { 229 102, 230 58, 231 intra_vlc_aic, 232 intra_run_aic, 233 intra_level_aic, 234 }; 235 236 const uint16_t ff_h263_format[8][2] = { 237 { 0, 0 }, 238 { 128, 96 }, 239 { 176, 144 }, 240 { 352, 288 }, 241 { 704, 576 }, 242 { 1408, 1152 }, 243 }; 244 245 const uint8_t ff_aic_dc_scale_table[32] = { 246 // 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 31 247 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, 62 248 }; 249 250 const uint8_t ff_modified_quant_tab[2][32] = { 251 // 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 31 252 { 253 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, 28 254 }, 255 { 256 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, 26 257 } 258 }; 259 260 const uint8_t ff_h263_chroma_qscale_table[32] = { 261 // 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 31 262 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, 15 263 }; 264 265 const uint16_t ff_mba_max[6] = { 266 47, 98, 395, 1583, 6335, 9215 267 }; 268 269 const uint8_t ff_mba_length[7] = { 270 6, 7, 9, 11, 13, 14, 14 271 }; 272 273 const AVRational ff_h263_pixel_aspect[16] = { 274 { 0, 1 }, 275 { 1, 1 }, 276 { 12, 11 }, 277 { 10, 11 }, 278 { 16, 11 }, 279 { 40, 33 }, 280 { 0, 1 }, 281 { 0, 1 }, 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 }; 291