1 2 /* 3 * xa_mpg.h 4 * 5 * Copyright (C) 1995-1998,1999 by Mark Podlipec. 6 * All rights reserved. 7 * 8 * This software may be freely used, copied and redistributed without 9 * fee for non-commerical purposes provided that this copyright 10 * notice is preserved intact on all copies. 11 * 12 * There is no warranty or other guarantee of fitness of this software. 13 * It is provided solely "as is". The author disclaims all 14 * responsibility and liability with respect to this software's usage 15 * or its effect upon hardware or computer systems. 16 * 17 */ 18 19 20 #include "xanim.h" 21 22 /* 23 * Copyright (c) 1992 The Regents of the University of California. 24 * All rights reserved. 25 * 26 * Permission to use, copy, modify, and distribute this software and its 27 * documentation for any purpose, without fee, and without written agreement is 28 * hereby granted, provided that the above copyright notice and the following 29 * two paragraphs appear in all copies of this software. 30 * 31 * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR 32 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT 33 * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF 34 * CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 35 * 36 * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES, 37 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 38 * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS 39 * ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO 40 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. 41 */ 42 43 44 typedef struct 45 { 46 unsigned int value; /* value for macroblock_address_increment */ 47 int num_bits; /* length of the Huffman code */ 48 } mb_addr_inc_entry; 49 50 /* Structure for an entry in the decoding table of macroblock_type */ 51 typedef struct 52 { 53 unsigned int mb_quant; /* macroblock_quant */ 54 unsigned int mb_motion_forward; /* macroblock_motion_forward */ 55 unsigned int mb_motion_backward; /* macroblock_motion_backward */ 56 unsigned int mb_pattern; /* macroblock_pattern */ 57 unsigned int mb_intra; /* macroblock_intra */ 58 int num_bits; /* length of the Huffman code */ 59 } mb_type_entry; 60 61 /* Structures for an entry in the decoding table of coded_block_pattern */ 62 typedef struct 63 { 64 unsigned int cbp; /* coded_block_pattern */ 65 int num_bits; /* length of the Huffman code */ 66 } coded_block_pattern_entry; 67 68 /* Structure for an entry in the decoding table of motion vectors */ 69 typedef struct 70 { 71 int code; /* value for motion_horizontal_forward_code, 72 * motion_vertical_forward_code, 73 * motion_horizontal_backward_code, or 74 * motion_vertical_backward_code. 75 */ 76 int num_bits; /* length of the Huffman code */ 77 } motion_vectors_entry; 78 79 typedef struct 80 { 81 unsigned int value; /* value of dct_dc_size (luminance or chrominance) */ 82 int num_bits; /* length of the Huffman code */ 83 } dct_dc_size_entry; 84 85 86 #define ERROR -1 87 88 coded_block_pattern_entry coded_block_pattern[512] = 89 { {(unsigned int)ERROR, 0}, {(unsigned int)ERROR, 0}, {39, 9}, {27, 9}, {59, 9}, {55, 9}, {47, 9}, {31, 9}, 90 {58, 8}, {58, 8}, {54, 8}, {54, 8}, {46, 8}, {46, 8}, {30, 8}, {30, 8}, 91 {57, 8}, {57, 8}, {53, 8}, {53, 8}, {45, 8}, {45, 8}, {29, 8}, {29, 8}, 92 {38, 8}, {38, 8}, {26, 8}, {26, 8}, {37, 8}, {37, 8}, {25, 8}, {25, 8}, 93 {43, 8}, {43, 8}, {23, 8}, {23, 8}, {51, 8}, {51, 8}, {15, 8}, {15, 8}, 94 {42, 8}, {42, 8}, {22, 8}, {22, 8}, {50, 8}, {50, 8}, {14, 8}, {14, 8}, 95 {41, 8}, {41, 8}, {21, 8}, {21, 8}, {49, 8}, {49, 8}, {13, 8}, {13, 8}, 96 {35, 8}, {35, 8}, {19, 8}, {19, 8}, {11, 8}, {11, 8}, {7, 8}, {7, 8}, 97 {34, 7}, {34, 7}, {34, 7}, {34, 7}, {18, 7}, {18, 7}, {18, 7}, {18, 7}, 98 {10, 7}, {10, 7}, {10, 7}, {10, 7}, {6, 7}, {6, 7}, {6, 7}, {6, 7}, 99 {33, 7}, {33, 7}, {33, 7}, {33, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, 100 {9, 7}, {9, 7}, {9, 7}, {9, 7}, {5, 7}, {5, 7}, {5, 7}, {5, 7}, 101 {63, 6}, {63, 6}, {63, 6}, {63, 6}, {63, 6}, {63, 6}, {63, 6}, {63, 6}, 102 {3, 6}, {3, 6}, {3, 6}, {3, 6}, {3, 6}, {3, 6}, {3, 6}, {3, 6}, 103 {36, 6}, {36, 6}, {36, 6}, {36, 6}, {36, 6}, {36, 6}, {36, 6}, {36, 6}, 104 {24, 6}, {24, 6}, {24, 6}, {24, 6}, {24, 6}, {24, 6}, {24, 6}, {24, 6}, 105 {62, 5}, {62, 5}, {62, 5}, {62, 5}, {62, 5}, {62, 5}, {62, 5}, {62, 5}, 106 {62, 5}, {62, 5}, {62, 5}, {62, 5}, {62, 5}, {62, 5}, {62, 5}, {62, 5}, 107 {2, 5}, {2, 5}, {2, 5}, {2, 5}, {2, 5}, {2, 5}, {2, 5}, {2, 5}, 108 {2, 5}, {2, 5}, {2, 5}, {2, 5}, {2, 5}, {2, 5}, {2, 5}, {2, 5}, 109 {61, 5}, {61, 5}, {61, 5}, {61, 5}, {61, 5}, {61, 5}, {61, 5}, {61, 5}, 110 {61, 5}, {61, 5}, {61, 5}, {61, 5}, {61, 5}, {61, 5}, {61, 5}, {61, 5}, 111 {1, 5}, {1, 5}, {1, 5}, {1, 5}, {1, 5}, {1, 5}, {1, 5}, {1, 5}, 112 {1, 5}, {1, 5}, {1, 5}, {1, 5}, {1, 5}, {1, 5}, {1, 5}, {1, 5}, 113 {56, 5}, {56, 5}, {56, 5}, {56, 5}, {56, 5}, {56, 5}, {56, 5}, {56, 5}, 114 {56, 5}, {56, 5}, {56, 5}, {56, 5}, {56, 5}, {56, 5}, {56, 5}, {56, 5}, 115 {52, 5}, {52, 5}, {52, 5}, {52, 5}, {52, 5}, {52, 5}, {52, 5}, {52, 5}, 116 {52, 5}, {52, 5}, {52, 5}, {52, 5}, {52, 5}, {52, 5}, {52, 5}, {52, 5}, 117 {44, 5}, {44, 5}, {44, 5}, {44, 5}, {44, 5}, {44, 5}, {44, 5}, {44, 5}, 118 {44, 5}, {44, 5}, {44, 5}, {44, 5}, {44, 5}, {44, 5}, {44, 5}, {44, 5}, 119 {28, 5}, {28, 5}, {28, 5}, {28, 5}, {28, 5}, {28, 5}, {28, 5}, {28, 5}, 120 {28, 5}, {28, 5}, {28, 5}, {28, 5}, {28, 5}, {28, 5}, {28, 5}, {28, 5}, 121 {40, 5}, {40, 5}, {40, 5}, {40, 5}, {40, 5}, {40, 5}, {40, 5}, {40, 5}, 122 {40, 5}, {40, 5}, {40, 5}, {40, 5}, {40, 5}, {40, 5}, {40, 5}, {40, 5}, 123 {20, 5}, {20, 5}, {20, 5}, {20, 5}, {20, 5}, {20, 5}, {20, 5}, {20, 5}, 124 {20, 5}, {20, 5}, {20, 5}, {20, 5}, {20, 5}, {20, 5}, {20, 5}, {20, 5}, 125 {48, 5}, {48, 5}, {48, 5}, {48, 5}, {48, 5}, {48, 5}, {48, 5}, {48, 5}, 126 {48, 5}, {48, 5}, {48, 5}, {48, 5}, {48, 5}, {48, 5}, {48, 5}, {48, 5}, 127 {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, 128 {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, 129 {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, 130 {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, 131 {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, 132 {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, 133 {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, 134 {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, 135 {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, 136 {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, 137 {8, 4}, {8, 4}, {8, 4}, {8, 4}, {8, 4}, {8, 4}, {8, 4}, {8, 4}, 138 {8, 4}, {8, 4}, {8, 4}, {8, 4}, {8, 4}, {8, 4}, {8, 4}, {8, 4}, 139 {8, 4}, {8, 4}, {8, 4}, {8, 4}, {8, 4}, {8, 4}, {8, 4}, {8, 4}, 140 {8, 4}, {8, 4}, {8, 4}, {8, 4}, {8, 4}, {8, 4}, {8, 4}, {8, 4}, 141 {4, 4}, {4, 4}, {4, 4}, {4, 4}, {4, 4}, {4, 4}, {4, 4}, {4, 4}, 142 {4, 4}, {4, 4}, {4, 4}, {4, 4}, {4, 4}, {4, 4}, {4, 4}, {4, 4}, 143 {4, 4}, {4, 4}, {4, 4}, {4, 4}, {4, 4}, {4, 4}, {4, 4}, {4, 4}, 144 {4, 4}, {4, 4}, {4, 4}, {4, 4}, {4, 4}, {4, 4}, {4, 4}, {4, 4}, 145 {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, 146 {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, 147 {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, 148 {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, 149 {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, 150 {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, 151 {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, 152 {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3}, {60, 3} 153 }; 154 155 /* Decoding table for dct_dc_size_luminance */ 156 dct_dc_size_entry dct_dc_size_luminance[128] = 157 { {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, 158 {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, 159 {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, 160 {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, 161 {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, 162 {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, 163 {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, 164 {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, 165 {0, 3}, {0, 3}, {0, 3}, {0, 3}, {0, 3}, {0, 3}, {0, 3}, {0, 3}, 166 {0, 3}, {0, 3}, {0, 3}, {0, 3}, {0, 3}, {0, 3}, {0, 3}, {0, 3}, 167 {3, 3}, {3, 3}, {3, 3}, {3, 3}, {3, 3}, {3, 3}, {3, 3}, {3, 3}, 168 {3, 3}, {3, 3}, {3, 3}, {3, 3}, {3, 3}, {3, 3}, {3, 3}, {3, 3}, 169 {4, 3}, {4, 3}, {4, 3}, {4, 3}, {4, 3}, {4, 3}, {4, 3}, {4, 3}, 170 {4, 3}, {4, 3}, {4, 3}, {4, 3}, {4, 3}, {4, 3}, {4, 3}, {4, 3}, 171 {5, 4}, {5, 4}, {5, 4}, {5, 4}, {5, 4}, {5, 4}, {5, 4}, {5, 4}, 172 {6, 5}, {6, 5}, {6, 5}, {6, 5}, {7, 6}, {7, 6}, {8, 7}, {(unsigned int)ERROR, 0} 173 }; 174 175 /* Decoding table for dct_dc_size_chrominance */ 176 dct_dc_size_entry dct_dc_size_chrominance[256] = 177 { {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, 178 {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, 179 {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, 180 {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, 181 {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, 182 {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, 183 {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, 184 {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, 185 {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, 186 {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, 187 {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, 188 {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, 189 {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, 190 {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, 191 {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, 192 {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, 193 {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, 194 {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, 195 {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, 196 {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, 197 {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, 198 {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, 199 {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, 200 {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, 201 {3, 3}, {3, 3}, {3, 3}, {3, 3}, {3, 3}, {3, 3}, {3, 3}, {3, 3}, 202 {3, 3}, {3, 3}, {3, 3}, {3, 3}, {3, 3}, {3, 3}, {3, 3}, {3, 3}, 203 {3, 3}, {3, 3}, {3, 3}, {3, 3}, {3, 3}, {3, 3}, {3, 3}, {3, 3}, 204 {3, 3}, {3, 3}, {3, 3}, {3, 3}, {3, 3}, {3, 3}, {3, 3}, {3, 3}, 205 {4, 4}, {4, 4}, {4, 4}, {4, 4}, {4, 4}, {4, 4}, {4, 4}, {4, 4}, 206 {4, 4}, {4, 4}, {4, 4}, {4, 4}, {4, 4}, {4, 4}, {4, 4}, {4, 4}, 207 {5, 5}, {5, 5}, {5, 5}, {5, 5}, {5, 5}, {5, 5}, {5, 5}, {5, 5}, 208 {6, 6}, {6, 6}, {6, 6}, {6, 6}, {7, 7}, {7, 7}, {8, 8}, {(unsigned int)ERROR, 0} 209 }; 210 211 /* DCT coeff tables. */ 212 213 unsigned short int dct_coeff_tbl_0[256] = 214 { 215 0xffff, 0xffff, 0xffff, 0xffff, 216 0xffff, 0xffff, 0xffff, 0xffff, 217 0xffff, 0xffff, 0xffff, 0xffff, 218 0xffff, 0xffff, 0xffff, 0xffff, 219 0x052f, 0x051f, 0x050f, 0x04ff, 220 0x183f, 0x402f, 0x3c2f, 0x382f, 221 0x342f, 0x302f, 0x2c2f, 0x7c1f, 222 0x781f, 0x741f, 0x701f, 0x6c1f, 223 0x028e, 0x028e, 0x027e, 0x027e, 224 0x026e, 0x026e, 0x025e, 0x025e, 225 0x024e, 0x024e, 0x023e, 0x023e, 226 0x022e, 0x022e, 0x021e, 0x021e, 227 0x020e, 0x020e, 0x04ee, 0x04ee, 228 0x04de, 0x04de, 0x04ce, 0x04ce, 229 0x04be, 0x04be, 0x04ae, 0x04ae, 230 0x049e, 0x049e, 0x048e, 0x048e, 231 0x01fd, 0x01fd, 0x01fd, 0x01fd, 232 0x01ed, 0x01ed, 0x01ed, 0x01ed, 233 0x01dd, 0x01dd, 0x01dd, 0x01dd, 234 0x01cd, 0x01cd, 0x01cd, 0x01cd, 235 0x01bd, 0x01bd, 0x01bd, 0x01bd, 236 0x01ad, 0x01ad, 0x01ad, 0x01ad, 237 0x019d, 0x019d, 0x019d, 0x019d, 238 0x018d, 0x018d, 0x018d, 0x018d, 239 0x017d, 0x017d, 0x017d, 0x017d, 240 0x016d, 0x016d, 0x016d, 0x016d, 241 0x015d, 0x015d, 0x015d, 0x015d, 242 0x014d, 0x014d, 0x014d, 0x014d, 243 0x013d, 0x013d, 0x013d, 0x013d, 244 0x012d, 0x012d, 0x012d, 0x012d, 245 0x011d, 0x011d, 0x011d, 0x011d, 246 0x010d, 0x010d, 0x010d, 0x010d, 247 0x282c, 0x282c, 0x282c, 0x282c, 248 0x282c, 0x282c, 0x282c, 0x282c, 249 0x242c, 0x242c, 0x242c, 0x242c, 250 0x242c, 0x242c, 0x242c, 0x242c, 251 0x143c, 0x143c, 0x143c, 0x143c, 252 0x143c, 0x143c, 0x143c, 0x143c, 253 0x0c4c, 0x0c4c, 0x0c4c, 0x0c4c, 254 0x0c4c, 0x0c4c, 0x0c4c, 0x0c4c, 255 0x085c, 0x085c, 0x085c, 0x085c, 256 0x085c, 0x085c, 0x085c, 0x085c, 257 0x047c, 0x047c, 0x047c, 0x047c, 258 0x047c, 0x047c, 0x047c, 0x047c, 259 0x046c, 0x046c, 0x046c, 0x046c, 260 0x046c, 0x046c, 0x046c, 0x046c, 261 0x00fc, 0x00fc, 0x00fc, 0x00fc, 262 0x00fc, 0x00fc, 0x00fc, 0x00fc, 263 0x00ec, 0x00ec, 0x00ec, 0x00ec, 264 0x00ec, 0x00ec, 0x00ec, 0x00ec, 265 0x00dc, 0x00dc, 0x00dc, 0x00dc, 266 0x00dc, 0x00dc, 0x00dc, 0x00dc, 267 0x00cc, 0x00cc, 0x00cc, 0x00cc, 268 0x00cc, 0x00cc, 0x00cc, 0x00cc, 269 0x681c, 0x681c, 0x681c, 0x681c, 270 0x681c, 0x681c, 0x681c, 0x681c, 271 0x641c, 0x641c, 0x641c, 0x641c, 272 0x641c, 0x641c, 0x641c, 0x641c, 273 0x601c, 0x601c, 0x601c, 0x601c, 274 0x601c, 0x601c, 0x601c, 0x601c, 275 0x5c1c, 0x5c1c, 0x5c1c, 0x5c1c, 276 0x5c1c, 0x5c1c, 0x5c1c, 0x5c1c, 277 0x581c, 0x581c, 0x581c, 0x581c, 278 0x581c, 0x581c, 0x581c, 0x581c, 279 }; 280 281 unsigned short int dct_coeff_tbl_1[16] = 282 { 283 0x00bb, 0x202b, 0x103b, 0x00ab, 284 0x084b, 0x1c2b, 0x541b, 0x501b, 285 0x009b, 0x4c1b, 0x481b, 0x045b, 286 0x0c3b, 0x008b, 0x182b, 0x441b, 287 }; 288 289 unsigned short int dct_coeff_tbl_2[4] = 290 { 291 0x4019, 0x1429, 0x0079, 0x0839, 292 }; 293 294 unsigned short int dct_coeff_tbl_3[4] = 295 { 296 0x0449, 0x3c19, 0x3819, 0x1029, 297 }; 298 299 unsigned short int dct_coeff_next[256] = 300 { 301 0xffff, 0xffff, 0xffff, 0xffff, 302 0xf7d5, 0xf7d5, 0xf7d5, 0xf7d5, 303 0x0826, 0x0826, 0x2416, 0x2416, 304 0x0046, 0x0046, 0x2016, 0x2016, 305 0x1c15, 0x1c15, 0x1c15, 0x1c15, 306 0x1815, 0x1815, 0x1815, 0x1815, 307 0x0425, 0x0425, 0x0425, 0x0425, 308 0x1415, 0x1415, 0x1415, 0x1415, 309 0x3417, 0x0067, 0x3017, 0x2c17, 310 0x0c27, 0x0437, 0x0057, 0x2817, 311 0x0034, 0x0034, 0x0034, 0x0034, 312 0x0034, 0x0034, 0x0034, 0x0034, 313 0x1014, 0x1014, 0x1014, 0x1014, 314 0x1014, 0x1014, 0x1014, 0x1014, 315 0x0c14, 0x0c14, 0x0c14, 0x0c14, 316 0x0c14, 0x0c14, 0x0c14, 0x0c14, 317 0x0023, 0x0023, 0x0023, 0x0023, 318 0x0023, 0x0023, 0x0023, 0x0023, 319 0x0023, 0x0023, 0x0023, 0x0023, 320 0x0023, 0x0023, 0x0023, 0x0023, 321 0x0813, 0x0813, 0x0813, 0x0813, 322 0x0813, 0x0813, 0x0813, 0x0813, 323 0x0813, 0x0813, 0x0813, 0x0813, 324 0x0813, 0x0813, 0x0813, 0x0813, 325 0x0412, 0x0412, 0x0412, 0x0412, 326 0x0412, 0x0412, 0x0412, 0x0412, 327 0x0412, 0x0412, 0x0412, 0x0412, 328 0x0412, 0x0412, 0x0412, 0x0412, 329 0x0412, 0x0412, 0x0412, 0x0412, 330 0x0412, 0x0412, 0x0412, 0x0412, 331 0x0412, 0x0412, 0x0412, 0x0412, 332 0x0412, 0x0412, 0x0412, 0x0412, 333 0xfbe1, 0xfbe1, 0xfbe1, 0xfbe1, 334 0xfbe1, 0xfbe1, 0xfbe1, 0xfbe1, 335 0xfbe1, 0xfbe1, 0xfbe1, 0xfbe1, 336 0xfbe1, 0xfbe1, 0xfbe1, 0xfbe1, 337 0xfbe1, 0xfbe1, 0xfbe1, 0xfbe1, 338 0xfbe1, 0xfbe1, 0xfbe1, 0xfbe1, 339 0xfbe1, 0xfbe1, 0xfbe1, 0xfbe1, 340 0xfbe1, 0xfbe1, 0xfbe1, 0xfbe1, 341 0xfbe1, 0xfbe1, 0xfbe1, 0xfbe1, 342 0xfbe1, 0xfbe1, 0xfbe1, 0xfbe1, 343 0xfbe1, 0xfbe1, 0xfbe1, 0xfbe1, 344 0xfbe1, 0xfbe1, 0xfbe1, 0xfbe1, 345 0xfbe1, 0xfbe1, 0xfbe1, 0xfbe1, 346 0xfbe1, 0xfbe1, 0xfbe1, 0xfbe1, 347 0xfbe1, 0xfbe1, 0xfbe1, 0xfbe1, 348 0xfbe1, 0xfbe1, 0xfbe1, 0xfbe1, 349 0x0011, 0x0011, 0x0011, 0x0011, 350 0x0011, 0x0011, 0x0011, 0x0011, 351 0x0011, 0x0011, 0x0011, 0x0011, 352 0x0011, 0x0011, 0x0011, 0x0011, 353 0x0011, 0x0011, 0x0011, 0x0011, 354 0x0011, 0x0011, 0x0011, 0x0011, 355 0x0011, 0x0011, 0x0011, 0x0011, 356 0x0011, 0x0011, 0x0011, 0x0011, 357 0x0011, 0x0011, 0x0011, 0x0011, 358 0x0011, 0x0011, 0x0011, 0x0011, 359 0x0011, 0x0011, 0x0011, 0x0011, 360 0x0011, 0x0011, 0x0011, 0x0011, 361 0x0011, 0x0011, 0x0011, 0x0011, 362 0x0011, 0x0011, 0x0011, 0x0011, 363 0x0011, 0x0011, 0x0011, 0x0011, 364 0x0011, 0x0011, 0x0011, 0x0011, 365 }; 366 367 unsigned short int dct_coeff_first[256] = 368 { 369 0xffff, 0xffff, 0xffff, 0xffff, 370 0xf7d5, 0xf7d5, 0xf7d5, 0xf7d5, 371 0x0826, 0x0826, 0x2416, 0x2416, 372 0x0046, 0x0046, 0x2016, 0x2016, 373 0x1c15, 0x1c15, 0x1c15, 0x1c15, 374 0x1815, 0x1815, 0x1815, 0x1815, 375 0x0425, 0x0425, 0x0425, 0x0425, 376 0x1415, 0x1415, 0x1415, 0x1415, 377 0x3417, 0x0067, 0x3017, 0x2c17, 378 0x0c27, 0x0437, 0x0057, 0x2817, 379 0x0034, 0x0034, 0x0034, 0x0034, 380 0x0034, 0x0034, 0x0034, 0x0034, 381 0x1014, 0x1014, 0x1014, 0x1014, 382 0x1014, 0x1014, 0x1014, 0x1014, 383 0x0c14, 0x0c14, 0x0c14, 0x0c14, 384 0x0c14, 0x0c14, 0x0c14, 0x0c14, 385 0x0023, 0x0023, 0x0023, 0x0023, 386 0x0023, 0x0023, 0x0023, 0x0023, 387 0x0023, 0x0023, 0x0023, 0x0023, 388 0x0023, 0x0023, 0x0023, 0x0023, 389 0x0813, 0x0813, 0x0813, 0x0813, 390 0x0813, 0x0813, 0x0813, 0x0813, 391 0x0813, 0x0813, 0x0813, 0x0813, 392 0x0813, 0x0813, 0x0813, 0x0813, 393 0x0412, 0x0412, 0x0412, 0x0412, 394 0x0412, 0x0412, 0x0412, 0x0412, 395 0x0412, 0x0412, 0x0412, 0x0412, 396 0x0412, 0x0412, 0x0412, 0x0412, 397 0x0412, 0x0412, 0x0412, 0x0412, 398 0x0412, 0x0412, 0x0412, 0x0412, 399 0x0412, 0x0412, 0x0412, 0x0412, 400 0x0412, 0x0412, 0x0412, 0x0412, 401 0x0010, 0x0010, 0x0010, 0x0010, 402 0x0010, 0x0010, 0x0010, 0x0010, 403 0x0010, 0x0010, 0x0010, 0x0010, 404 0x0010, 0x0010, 0x0010, 0x0010, 405 0x0010, 0x0010, 0x0010, 0x0010, 406 0x0010, 0x0010, 0x0010, 0x0010, 407 0x0010, 0x0010, 0x0010, 0x0010, 408 0x0010, 0x0010, 0x0010, 0x0010, 409 0x0010, 0x0010, 0x0010, 0x0010, 410 0x0010, 0x0010, 0x0010, 0x0010, 411 0x0010, 0x0010, 0x0010, 0x0010, 412 0x0010, 0x0010, 0x0010, 0x0010, 413 0x0010, 0x0010, 0x0010, 0x0010, 414 0x0010, 0x0010, 0x0010, 0x0010, 415 0x0010, 0x0010, 0x0010, 0x0010, 416 0x0010, 0x0010, 0x0010, 0x0010, 417 0x0010, 0x0010, 0x0010, 0x0010, 418 0x0010, 0x0010, 0x0010, 0x0010, 419 0x0010, 0x0010, 0x0010, 0x0010, 420 0x0010, 0x0010, 0x0010, 0x0010, 421 0x0010, 0x0010, 0x0010, 0x0010, 422 0x0010, 0x0010, 0x0010, 0x0010, 423 0x0010, 0x0010, 0x0010, 0x0010, 424 0x0010, 0x0010, 0x0010, 0x0010, 425 0x0010, 0x0010, 0x0010, 0x0010, 426 0x0010, 0x0010, 0x0010, 0x0010, 427 0x0010, 0x0010, 0x0010, 0x0010, 428 0x0010, 0x0010, 0x0010, 0x0010, 429 0x0010, 0x0010, 0x0010, 0x0010, 430 0x0010, 0x0010, 0x0010, 0x0010, 431 0x0010, 0x0010, 0x0010, 0x0010, 432 0x0010, 0x0010, 0x0010, 0x0010, 433 }; 434 435 436