libavcodec/rv30data.h

   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 rv30data.h
  24  * miscellaneous RV30 tables
  25  */
  26
  27 #ifndef FFMPEG_RV30DATA_H
  28 #define FFMPEG_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  * detemined 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 #endif /* FFMPEG_RV30DATA_H */