libavcodec/vp56data.c

   1 /**
   2  * @file vp56data.c
   3  * VP5 and VP6 compatible video decoder (common data)
   4  *
   5  * Copyright (C) 2006  Aurelien Jacobs <aurel@gnuage.org>
   6  *
   7  * This file is part of FFmpeg.
   8  *
   9  * FFmpeg is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * FFmpeg is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with FFmpeg; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  22  */
  23
  24 #include "vp56data.h"
  25
  26 const uint8_t vp56_b2p[]   = { 0, 0, 0, 0, 1, 2, 3, 3, 3, 3 };
  27 const uint8_t vp56_b6to4[] = { 0, 0, 1, 1, 2, 3 };
  28
  29 const uint8_t vp56_coeff_parse_table[6][11] = {
  30     { 159,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0 },
  31     { 145, 165,   0,   0,   0,   0,   0,   0,   0,   0,   0 },
  32     { 140, 148, 173,   0,   0,   0,   0,   0,   0,   0,   0 },
  33     { 135, 140, 155, 176,   0,   0,   0,   0,   0,   0,   0 },
  34     { 130, 134, 141, 157, 180,   0,   0,   0,   0,   0,   0 },
  35     { 129, 130, 133, 140, 153, 177, 196, 230, 243, 254, 254 },
  36 };
  37
  38 const uint8_t vp56_def_mb_types_stats[3][10][2] = {
  39     { {  69, 42 }, {   1,  2 }, {  1,   7 }, {  44, 42 }, {  6, 22 },
  40       {   1,  3 }, {   0,  2 }, {  1,   5 }, {   0,  1 }, {  0,  0 }, },
  41     { { 229,  8 }, {   1,  1 }, {  0,   8 }, {   0,  0 }, {  0,  0 },
  42       {   1,  2 }, {   0,  1 }, {  0,   0 }, {   1,  1 }, {  0,  0 }, },
  43     { { 122, 35 }, {   1,  1 }, {  1,   6 }, {  46, 34 }, {  0,  0 },
  44       {   1,  2 }, {   0,  1 }, {  0,   1 }, {   1,  1 }, {  0,  0 }, },
  45 };
  46
  47 const vp56_tree_t vp56_pva_tree[] = {
  48     { 8, 0},
  49     { 4, 1},
  50     { 2, 2}, {-0}, {-1},
  51     { 2, 3}, {-2}, {-3},
  52     { 4, 4},
  53     { 2, 5}, {-4}, {-5},
  54     { 2, 6}, {-6}, {-7},
  55 };
  56
  57 const vp56_tree_t vp56_pc_tree[] = {
  58     { 4, 6},
  59     { 2, 7}, {-0}, {-1},
  60     { 4, 8},
  61     { 2, 9}, {-2}, {-3},
  62     { 2,10}, {-4}, {-5},
  63 };
  64
  65 const uint8_t vp56_coeff_bias[] = { 0, 1, 2, 3, 4, 5, 7, 11, 19, 35, 67 };
  66 const uint8_t vp56_coeff_bit_length[] = { 0, 1, 2, 3, 4, 10 };