1 /* 2 * RealVideo 3 decoder 3 * copyright (c) 2007 Konstantin Shishkov 4 * 5 * This file is part of FFmpeg. 6 * 7 * FFmpeg 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 2.1 of the License, or (at your option) any later version. 11 * 12 * FFmpeg 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. 16 * 17 * You should have received a copy of the GNU Lesser General Public 18 * License along with FFmpeg; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 20 */ 21 22 /** 23 * @file 24 * miscellaneous RV30 tables 25 */ 26 27 #ifndef AVCODEC_RV30DATA_H 28 #define AVCODEC_RV30DATA_H 29 30 #include <stdint.h> 31 32 /** DC quantizer mapping for RV30 */ 33 static const uint8_t rv30_luma_dc_quant[32] = { 34 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 35 16, 17, 18, 19, 20, 21, 22, 22, 22, 23, 23, 23, 24, 24, 25, 25 36 }; 37 38 /** 39 * This table is used for storing the differences 40 * between the predicted and the real intra type. 41 */ 42 static const uint8_t rv30_itype_code[9*9*2] = { 43 0, 0, 0, 1, 1, 0, 1, 1, 0, 2, 2, 0, 0, 3, 3, 0, 1, 2, 44 2, 1, 0, 4, 4, 0, 3, 1, 1, 3, 0, 5, 5, 0, 2, 2, 1, 4, 45 4, 1, 0, 6, 3, 2, 1, 5, 2, 3, 5, 1, 6, 0, 0, 7, 4, 2, 46 2, 4, 3, 3, 6, 1, 1, 6, 7, 0, 0, 8, 5, 2, 4, 3, 2, 5, 47 3, 4, 1, 7, 4, 4, 7, 1, 8, 0, 6, 2, 3, 5, 5, 3, 2, 6, 48 1, 8, 2, 7, 7, 2, 8, 1, 5, 4, 4, 5, 3, 6, 6, 3, 8, 2, 49 4, 6, 5, 5, 6, 4, 2, 8, 7, 3, 3, 7, 6, 5, 5, 6, 7, 4, 50 4, 7, 8, 3, 3, 8, 7, 5, 8, 4, 5, 7, 4, 8, 6, 6, 7, 6, 51 5, 8, 8, 5, 6, 7, 8, 6, 7, 7, 6, 8, 8, 7, 7, 8, 8, 8, 52 }; 53 54 /** 55 * This table is used for retrieving the current intra type 56 * based on its neighbors and adjustment provided by 57 * code read and decoded before. 58 * 59 * This is really a three-dimensional matrix with dimensions 60 * [-1..9][-1..9][0..9]. The first and second coordinates are 61 * determined by the top and left neighbors (-1 if unavailable). 62 */ 63 static const uint8_t rv30_itype_from_context[900] = { 64 0, 9, 9, 9, 9, 9, 9, 9, 9, 65 0, 2, 9, 9, 9, 9, 9, 9, 9, 66 9, 9, 9, 9, 9, 9, 9, 9, 9, 67 2, 0, 9, 9, 9, 9, 9, 9, 9, 68 9, 9, 9, 9, 9, 9, 9, 9, 9, 69 9, 9, 9, 9, 9, 9, 9, 9, 9, 70 9, 9, 9, 9, 9, 9, 9, 9, 9, 71 9, 9, 9, 9, 9, 9, 9, 9, 9, 72 9, 9, 9, 9, 9, 9, 9, 9, 9, 73 9, 9, 9, 9, 9, 9, 9, 9, 9, 74 75 0, 1, 9, 9, 9, 9, 9, 9, 9, 76 0, 2, 1, 6, 4, 8, 5, 7, 3, 77 1, 0, 2, 6, 5, 4, 3, 8, 7, 78 2, 8, 0, 1, 7, 4, 3, 6, 5, 79 2, 0, 1, 3, 8, 5, 4, 7, 6, 80 2, 0, 1, 4, 6, 7, 8, 3, 5, 81 0, 1, 5, 2, 6, 3, 8, 4, 7, 82 0, 1, 6, 2, 4, 7, 5, 8, 3, 83 2, 7, 0, 1, 4, 8, 6, 3, 5, 84 2, 8, 0, 1, 7, 3, 4, 5, 6, 85 86 1, 0, 9, 9, 9, 9, 9, 9, 9, 87 1, 2, 5, 6, 3, 0, 4, 8, 7, 88 1, 6, 2, 5, 3, 0, 4, 8, 7, 89 2, 1, 7, 6, 8, 3, 5, 0, 4, 90 1, 2, 5, 3, 6, 8, 4, 7, 0, 91 1, 6, 2, 0, 4, 5, 8, 7, 3, 92 1, 5, 2, 6, 3, 8, 4, 0, 7, 93 1, 6, 0, 2, 4, 5, 7, 3, 8, 94 2, 1, 7, 6, 0, 8, 5, 4, 3, 95 1, 2, 7, 8, 3, 4, 5, 6, 0, 96 97 9, 9, 9, 9, 9, 9, 9, 9, 9, 98 0, 2, 1, 8, 7, 6, 5, 4, 3, 99 1, 2, 0, 6, 5, 7, 4, 8, 3, 100 2, 8, 7, 1, 0, 6, 4, 3, 5, 101 2, 0, 8, 1, 3, 7, 5, 4, 6, 102 2, 0, 4, 1, 7, 8, 6, 3, 5, 103 2, 0, 1, 5, 8, 4, 6, 7, 3, 104 2, 0, 6, 1, 4, 7, 8, 5, 3, 105 2, 7, 8, 1, 0, 5, 4, 6, 3, 106 2, 8, 7, 1, 0, 4, 3, 6, 5, 107 108 9, 9, 9, 9, 9, 9, 9, 9, 9, 109 0, 2, 1, 3, 5, 8, 6, 4, 7, 110 1, 0, 2, 5, 3, 6, 4, 8, 7, 111 2, 8, 1, 0, 3, 5, 7, 6, 4, 112 3, 2, 5, 8, 1, 4, 6, 7, 0, 113 4, 2, 0, 6, 1, 5, 8, 3, 7, 114 5, 3, 1, 2, 8, 6, 4, 0, 7, 115 1, 6, 0, 2, 4, 5, 8, 3, 7, 116 2, 7, 0, 1, 5, 4, 8, 6, 3, 117 2, 8, 3, 5, 1, 0, 7, 6, 4, 118 119 9, 9, 9, 9, 9, 9, 9, 9, 9, 120 2, 0, 6, 1, 4, 7, 5, 8, 3, 121 1, 6, 2, 0, 4, 5, 3, 7, 8, 122 2, 8, 7, 6, 4, 0, 1, 5, 3, 123 4, 2, 1, 0, 6, 8, 3, 5, 7, 124 4, 2, 6, 0, 1, 5, 7, 8, 3, 125 1, 2, 5, 0, 6, 3, 4, 7, 8, 126 6, 4, 0, 1, 2, 7, 5, 3, 8, 127 2, 7, 4, 6, 0, 1, 8, 5, 3, 128 2, 8, 7, 4, 6, 1, 3, 5, 0, 129 130 9, 9, 9, 9, 9, 9, 9, 9, 9, 131 5, 1, 2, 3, 6, 8, 0, 4, 7, 132 1, 5, 6, 3, 2, 0, 4, 8, 7, 133 2, 1, 5, 3, 6, 8, 7, 4, 0, 134 5, 3, 1, 2, 6, 8, 4, 7, 0, 135 1, 6, 2, 4, 5, 8, 0, 3, 7, 136 5, 1, 3, 6, 2, 0, 8, 4, 7, 137 1, 6, 5, 2, 0, 4, 3, 7, 8, 138 2, 7, 1, 6, 5, 0, 8, 3, 4, 139 2, 5, 1, 3, 6, 8, 4, 0, 7, 140 141 9, 9, 9, 9, 9, 9, 9, 9, 9, 142 1, 6, 2, 0, 5, 4, 3, 7, 8, 143 1, 6, 5, 4, 2, 3, 0, 7, 8, 144 2, 1, 6, 7, 4, 8, 5, 3, 0, 145 2, 1, 6, 5, 8, 4, 3, 0, 7, 146 6, 4, 1, 2, 0, 5, 7, 8, 3, 147 1, 6, 5, 2, 3, 0, 4, 8, 7, 148 6, 1, 4, 0, 2, 7, 5, 3, 8, 149 2, 7, 4, 6, 1, 5, 0, 8, 3, 150 2, 1, 6, 8, 4, 7, 3, 5, 0, 151 152 9, 9, 9, 9, 9, 9, 9, 9, 9, 153 2, 0, 4, 7, 6, 1, 8, 5, 3, 154 6, 1, 2, 0, 4, 7, 5, 8, 3, 155 2, 7, 8, 0, 1, 6, 4, 3, 5, 156 2, 4, 0, 8, 3, 1, 7, 6, 5, 157 4, 2, 7, 0, 6, 1, 8, 5, 3, 158 2, 1, 0, 8, 5, 6, 7, 4, 3, 159 2, 6, 4, 1, 7, 0, 5, 8, 3, 160 2, 7, 4, 0, 8, 6, 1, 5, 3, 161 2, 8, 7, 4, 1, 0, 3, 6, 5, 162 163 9, 9, 9, 9, 9, 9, 9, 9, 9, 164 2, 0, 8, 1, 3, 4, 6, 5, 7, 165 1, 2, 0, 6, 8, 5, 7, 3, 4, 166 2, 8, 7, 1, 0, 3, 6, 5, 4, 167 8, 3, 2, 5, 1, 0, 4, 7, 6, 168 2, 0, 4, 8, 5, 1, 7, 6, 3, 169 2, 1, 0, 8, 5, 3, 6, 4, 7, 170 2, 1, 6, 0, 8, 4, 5, 7, 3, 171 2, 7, 8, 4, 0, 6, 1, 5, 3, 172 2, 8, 3, 0, 7, 4, 1, 6, 5, 173 }; 174 175 /** 176 * Loop filter limits are taken from this table. 177 */ 178 static const uint8_t rv30_loop_filt_lim[32] = { 179 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5 180 }; 181 #endif /* AVCODEC_RV30DATA_H */ 182