libavcodec/vp56data.h

   1 /**
   2  * @file libavcodec/vp56data.h
   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 #ifndef AVCODEC_VP56DATA_H
  25 #define AVCODEC_VP56DATA_H
  26
  27 #include "libavutil/common.h"
  28
  29 typedef enum {
  30     VP56_FRAME_NONE     =-1,
  31     VP56_FRAME_CURRENT  = 0,
  32     VP56_FRAME_PREVIOUS = 1,
  33     VP56_FRAME_GOLDEN   = 2,
  34     VP56_FRAME_GOLDEN2  = 3,
  35     VP56_FRAME_UNUSED   = 4,
  36     VP56_FRAME_UNUSED2  = 5,
  37 } VP56Frame;
  38
  39 typedef enum {
  40     VP56_MB_INTER_NOVEC_PF = 0,  /**< Inter MB, no vector, from previous frame */
  41     VP56_MB_INTRA          = 1,  /**< Intra MB */
  42     VP56_MB_INTER_DELTA_PF = 2,  /**< Inter MB, above/left vector + delta, from previous frame */
  43     VP56_MB_INTER_V1_PF    = 3,  /**< Inter MB, first vector, from previous frame */
  44     VP56_MB_INTER_V2_PF    = 4,  /**< Inter MB, second vector, from previous frame */
  45     VP56_MB_INTER_NOVEC_GF = 5,  /**< Inter MB, no vector, from golden frame */
  46     VP56_MB_INTER_DELTA_GF = 6,  /**< Inter MB, above/left vector + delta, from golden frame */
  47     VP56_MB_INTER_4V       = 7,  /**< Inter MB, 4 vectors, from previous frame */
  48     VP56_MB_INTER_V1_GF    = 8,  /**< Inter MB, first vector, from golden frame */
  49     VP56_MB_INTER_V2_GF    = 9,  /**< Inter MB, second vector, from golden frame */
  50 } VP56mb;
  51
  52 typedef struct {
  53   int8_t val;
  54   int8_t prob_idx;
  55 } VP56Tree;
  56
  57 extern const uint8_t vp56_b2p[];
  58 extern const uint8_t vp56_b6to4[];
  59 extern const uint8_t vp56_coeff_parse_table[6][11];
  60 extern const uint8_t vp56_def_mb_types_stats[3][10][2];
  61 extern const VP56Tree vp56_pva_tree[];
  62 extern const VP56Tree vp56_pc_tree[];
  63 extern const uint8_t vp56_coeff_bias[];
  64 extern const uint8_t vp56_coeff_bit_length[];
  65
  66 static const VP56Frame vp56_reference_frame[] = {
  67     VP56_FRAME_PREVIOUS,  /* VP56_MB_INTER_NOVEC_PF */
  68     VP56_FRAME_CURRENT,   /* VP56_MB_INTRA */
  69     VP56_FRAME_PREVIOUS,  /* VP56_MB_INTER_DELTA_PF */
  70     VP56_FRAME_PREVIOUS,  /* VP56_MB_INTER_V1_PF */
  71     VP56_FRAME_PREVIOUS,  /* VP56_MB_INTER_V2_PF */
  72     VP56_FRAME_GOLDEN,    /* VP56_MB_INTER_NOVEC_GF */
  73     VP56_FRAME_GOLDEN,    /* VP56_MB_INTER_DELTA_GF */
  74     VP56_FRAME_PREVIOUS,  /* VP56_MB_INTER_4V */
  75     VP56_FRAME_GOLDEN,    /* VP56_MB_INTER_V1_GF */
  76     VP56_FRAME_GOLDEN,    /* VP56_MB_INTER_V2_GF */
  77 };
  78
  79 static const uint8_t vp56_ac_dequant[64] = {
  80     94, 92, 90, 88, 86, 82, 78, 74,
  81     70, 66, 62, 58, 54, 53, 52, 51,
  82     50, 49, 48, 47, 46, 45, 44, 43,
  83     42, 40, 39, 37, 36, 35, 34, 33,
  84     32, 31, 30, 29, 28, 27, 26, 25,
  85     24, 23, 22, 21, 20, 19, 18, 17,
  86     16, 15, 14, 13, 12, 11, 10,  9,
  87      8,  7,  6,  5,  4,  3,  2,  1,
  88 };
  89
  90 static const uint8_t vp56_dc_dequant[64] = {
  91     47, 47, 47, 47, 45, 43, 43, 43,
  92     43, 43, 42, 41, 41, 40, 40, 40,
  93     40, 35, 35, 35, 35, 33, 33, 33,
  94     33, 32, 32, 32, 27, 27, 26, 26,
  95     25, 25, 24, 24, 23, 23, 19, 19,
  96     19, 19, 18, 18, 17, 16, 16, 16,
  97     16, 16, 15, 11, 11, 11, 10, 10,
  98      9,  8,  7,  5,  3,  3,  2,  2,
  99 };
 100
 101 static const uint8_t vp56_pre_def_mb_type_stats[16][3][10][2] = {
 102   { { {   9, 15 }, {  32, 25 }, {  7,  19 }, {   9, 21 }, {  1, 12 },
 103       {  14, 12 }, {   3, 18 }, { 14,  23 }, {   3, 10 }, {  0,  4 }, },
 104     { {  41, 22 }, {   1,  0 }, {  1,  31 }, {   0,  0 }, {  0,  0 },
 105       {   0,  1 }, {   1,  7 }, {  0,   1 }, {  98, 25 }, {  4, 10 }, },
 106     { {   2,  3 }, {   2,  3 }, {  0,   2 }, {   0,  2 }, {  0,  0 },
 107       {  11,  4 }, {   1,  4 }, {  0,   2 }, {   3,  2 }, {  0,  4 }, }, },
 108   { { {  48, 39 }, {   1,  2 }, { 11,  27 }, {  29, 44 }, {  7, 27 },
 109       {   1,  4 }, {   0,  3 }, {  1,   6 }, {   1,  2 }, {  0,  0 }, },
 110     { { 123, 37 }, {   6,  4 }, {  1,  27 }, {   0,  0 }, {  0,  0 },
 111       {   5,  8 }, {   1,  7 }, {  0,   1 }, {  12, 10 }, {  0,  2 }, },
 112     { {  49, 46 }, {   3,  4 }, {  7,  31 }, {  42, 41 }, {  0,  0 },
 113       {   2,  6 }, {   1,  7 }, {  1,   4 }, {   2,  4 }, {  0,  1 }, }, },
 114   { { {  21, 32 }, {   1,  2 }, {  4,  10 }, {  32, 43 }, {  6, 23 },
 115       {   2,  3 }, {   1, 19 }, {  1,   6 }, {  12, 21 }, {  0,  7 }, },
 116     { {  26, 14 }, {  14, 12 }, {  0,  24 }, {   0,  0 }, {  0,  0 },
 117       {  55, 17 }, {   1,  9 }, {  0,  36 }, {   5,  7 }, {  1,  3 }, },
 118     { {  26, 25 }, {   1,  1 }, {  2,  10 }, {  67, 39 }, {  0,  0 },
 119       {   1,  1 }, {   0, 14 }, {  0,   2 }, {  31, 26 }, {  1,  6 }, }, },
 120   { { {  69, 83 }, {   0,  0 }, {  0,   2 }, {  10, 29 }, {  3, 12 },
 121       {   0,  1 }, {   0,  3 }, {  0,   3 }, {   2,  2 }, {  0,  0 }, },
 122     { { 209,  5 }, {   0,  0 }, {  0,  27 }, {   0,  0 }, {  0,  0 },
 123       {   0,  1 }, {   0,  1 }, {  0,   1 }, {   0,  0 }, {  0,  0 }, },
 124     { { 103, 46 }, {   1,  2 }, {  2,  10 }, {  33, 42 }, {  0,  0 },
 125       {   1,  4 }, {   0,  3 }, {  0,   1 }, {   1,  3 }, {  0,  0 }, }, },
 126   { { {  11, 20 }, {   1,  4 }, { 18,  36 }, {  43, 48 }, { 13, 35 },
 127       {   0,  2 }, {   0,  5 }, {  3,  12 }, {   1,  2 }, {  0,  0 }, },
 128     { {   2,  5 }, {   4,  5 }, {  0, 121 }, {   0,  0 }, {  0,  0 },
 129       {   0,  3 }, {   2,  4 }, {  1,   4 }, {   2,  2 }, {  0,  1 }, },
 130     { {  14, 31 }, {   9, 13 }, { 14,  54 }, {  22, 29 }, {  0,  0 },
 131       {   2,  6 }, {   4, 18 }, {  6,  13 }, {   1,  5 }, {  0,  1 }, }, },
 132   { { {  70, 44 }, {   0,  1 }, {  2,  10 }, {  37, 46 }, {  8, 26 },
 133       {   0,  2 }, {   0,  2 }, {  0,   2 }, {   0,  1 }, {  0,  0 }, },
 134     { { 175,  5 }, {   0,  1 }, {  0,  48 }, {   0,  0 }, {  0,  0 },
 135       {   0,  2 }, {   0,  1 }, {  0,   2 }, {   0,  1 }, {  0,  0 }, },
 136     { {  85, 39 }, {   0,  0 }, {  1,   9 }, {  69, 40 }, {  0,  0 },
 137       {   0,  1 }, {   0,  3 }, {  0,   1 }, {   2,  3 }, {  0,  0 }, }, },
 138   { { {   8, 15 }, {   0,  1 }, {  8,  21 }, {  74, 53 }, { 22, 42 },
 139       {   0,  1 }, {   0,  2 }, {  0,   3 }, {   1,  2 }, {  0,  0 }, },
 140     { {  83,  5 }, {   2,  3 }, {  0, 102 }, {   0,  0 }, {  0,  0 },
 141       {   1,  3 }, {   0,  2 }, {  0,   1 }, {   0,  0 }, {  0,  0 }, },
 142     { {  31, 28 }, {   0,  0 }, {  3,  14 }, { 130, 34 }, {  0,  0 },
 143       {   0,  1 }, {   0,  3 }, {  0,   1 }, {   3,  3 }, {  0,  1 }, }, },
 144   { { { 141, 42 }, {   0,  0 }, {  1,   4 }, {  11, 24 }, {  1, 11 },
 145       {   0,  1 }, {   0,  1 }, {  0,   2 }, {   0,  0 }, {  0,  0 }, },
 146     { { 233,  6 }, {   0,  0 }, {  0,   8 }, {   0,  0 }, {  0,  0 },
 147       {   0,  1 }, {   0,  1 }, {  0,   0 }, {   0,  1 }, {  0,  0 }, },
 148     { { 171, 25 }, {   0,  0 }, {  1,   5 }, {  25, 21 }, {  0,  0 },
 149       {   0,  1 }, {   0,  1 }, {  0,   0 }, {   0,  0 }, {  0,  0 }, }, },
 150   { { {   8, 19 }, {   4, 10 }, { 24,  45 }, {  21, 37 }, {  9, 29 },
 151       {   0,  3 }, {   1,  7 }, { 11,  25 }, {   0,  2 }, {  0,  1 }, },
 152     { {  34, 16 }, { 112, 21 }, {  1,  28 }, {   0,  0 }, {  0,  0 },
 153       {   6,  8 }, {   1,  7 }, {  0,   3 }, {   2,  5 }, {  0,  2 }, },
 154     { {  17, 21 }, {  68, 29 }, {  6,  15 }, {  13, 22 }, {  0,  0 },
 155       {   6, 12 }, {   3, 14 }, {  4,  10 }, {   1,  7 }, {  0,  3 }, }, },
 156   { { {  46, 42 }, {   0,  1 }, {  2,  10 }, {  54, 51 }, { 10, 30 },
 157       {   0,  2 }, {   0,  2 }, {  0,   1 }, {   0,  1 }, {  0,  0 }, },
 158     { { 159, 35 }, {   2,  2 }, {  0,  25 }, {   0,  0 }, {  0,  0 },
 159       {   3,  6 }, {   0,  5 }, {  0,   1 }, {   4,  4 }, {  0,  1 }, },
 160     { {  51, 39 }, {   0,  1 }, {  2,  12 }, {  91, 44 }, {  0,  0 },
 161       {   0,  2 }, {   0,  3 }, {  0,   1 }, {   2,  3 }, {  0,  1 }, }, },
 162   { { {  28, 32 }, {   0,  0 }, {  3,  10 }, {  75, 51 }, { 14, 33 },
 163       {   0,  1 }, {   0,  2 }, {  0,   1 }, {   1,  2 }, {  0,  0 }, },
 164     { {  75, 39 }, {   5,  7 }, {  2,  48 }, {   0,  0 }, {  0,  0 },
 165       {   3, 11 }, {   2, 16 }, {  1,   4 }, {   7, 10 }, {  0,  2 }, },
 166     { {  81, 25 }, {   0,  0 }, {  2,   9 }, { 106, 26 }, {  0,  0 },
 167       {   0,  1 }, {   0,  1 }, {  0,   1 }, {   1,  1 }, {  0,  0 }, }, },
 168   { { { 100, 46 }, {   0,  1 }, {  3,   9 }, {  21, 37 }, {  5, 20 },
 169       {   0,  1 }, {   0,  2 }, {  1,   2 }, {   0,  1 }, {  0,  0 }, },
 170     { { 212, 21 }, {   0,  1 }, {  0,   9 }, {   0,  0 }, {  0,  0 },
 171       {   1,  2 }, {   0,  2 }, {  0,   0 }, {   2,  2 }, {  0,  0 }, },
 172     { { 140, 37 }, {   0,  1 }, {  1,   8 }, {  24, 33 }, {  0,  0 },
 173       {   1,  2 }, {   0,  2 }, {  0,   1 }, {   1,  2 }, {  0,  0 }, }, },
 174   { { {  27, 29 }, {   0,  1 }, {  9,  25 }, {  53, 51 }, { 12, 34 },
 175       {   0,  1 }, {   0,  3 }, {  1,   5 }, {   0,  2 }, {  0,  0 }, },
 176     { {   4,  2 }, {   0,  0 }, {  0, 172 }, {   0,  0 }, {  0,  0 },
 177       {   0,  1 }, {   0,  2 }, {  0,   0 }, {   2,  0 }, {  0,  0 }, },
 178     { {  14, 23 }, {   1,  3 }, { 11,  53 }, {  90, 31 }, {  0,  0 },
 179       {   0,  3 }, {   1,  5 }, {  2,   6 }, {   1,  2 }, {  0,  0 }, }, },
 180   { { {  80, 38 }, {   0,  0 }, {  1,   4 }, {  69, 33 }, {  5, 16 },
 181       {   0,  1 }, {   0,  1 }, {  0,   0 }, {   0,  1 }, {  0,  0 }, },
 182     { { 187, 22 }, {   1,  1 }, {  0,  17 }, {   0,  0 }, {  0,  0 },
 183       {   3,  6 }, {   0,  4 }, {  0,   1 }, {   4,  4 }, {  0,  1 }, },
 184     { { 123, 29 }, {   0,  0 }, {  1,   7 }, {  57, 30 }, {  0,  0 },
 185       {   0,  1 }, {   0,  1 }, {  0,   1 }, {   0,  1 }, {  0,  0 }, }, },
 186   { { {  16, 20 }, {   0,  0 }, {  2,   8 }, { 104, 49 }, { 15, 33 },
 187       {   0,  1 }, {   0,  1 }, {  0,   1 }, {   1,  1 }, {  0,  0 }, },
 188     { { 133,  6 }, {   1,  2 }, {  1,  70 }, {   0,  0 }, {  0,  0 },
 189       {   0,  2 }, {   0,  4 }, {  0,   3 }, {   1,  1 }, {  0,  0 }, },
 190     { {  13, 14 }, {   0,  0 }, {  4,  20 }, { 175, 20 }, {  0,  0 },
 191       {   0,  1 }, {   0,  1 }, {  0,   1 }, {   1,  1 }, {  0,  0 }, }, },
 192   { { { 194, 16 }, {   0,  0 }, {  1,   1 }, {   1,  9 }, {  1,  3 },
 193       {   0,  0 }, {   0,  1 }, {  0,   1 }, {   0,  0 }, {  0,  0 }, },
 194     { { 251,  1 }, {   0,  0 }, {  0,   2 }, {   0,  0 }, {  0,  0 },
 195       {   0,  0 }, {   0,  0 }, {  0,   0 }, {   0,  0 }, {  0,  0 }, },
 196     { { 202, 23 }, {   0,  0 }, {  1,   3 }, {   2,  9 }, {  0,  0 },
 197       {   0,  1 }, {   0,  1 }, {  0,   1 }, {   0,  0 }, {  0,  0 }, }, },
 198 };
 199
 200 static const uint8_t vp56_filter_threshold[] = {
 201     14, 14, 13, 13, 12, 12, 10, 10,
 202     10, 10,  8,  8,  8,  8,  8,  8,
 203      8,  8,  8,  8,  8,  8,  8,  8,
 204      8,  8,  8,  8,  8,  8,  8,  8,
 205      8,  8,  8,  8,  7,  7,  7,  7,
 206      7,  7,  6,  6,  6,  6,  6,  6,
 207      5,  5,  5,  5,  4,  4,  4,  4,
 208      4,  4,  4,  3,  3,  3,  3,  2,
 209 };
 210
 211 static const uint8_t vp56_mb_type_model_model[] = {
 212     171, 83, 199, 140, 125, 104,
 213 };
 214
 215 static const VP56Tree vp56_pmbtm_tree[] = {
 216     { 4, 0},
 217     { 2, 1}, {-8}, {-4},
 218     { 8, 2},
 219     { 6, 3},
 220     { 4, 4},
 221     { 2, 5}, {-24}, {-20}, {-16}, {-12}, {-0},
 222 };
 223
 224 static const VP56Tree vp56_pmbt_tree[] = {
 225     { 8, 1},
 226     { 4, 2},
 227     { 2, 4}, {-VP56_MB_INTER_NOVEC_PF}, {-VP56_MB_INTER_DELTA_PF},
 228     { 2, 5}, {-VP56_MB_INTER_V1_PF},    {-VP56_MB_INTER_V2_PF},
 229     { 4, 3},
 230     { 2, 6}, {-VP56_MB_INTRA},          {-VP56_MB_INTER_4V},
 231     { 4, 7},
 232     { 2, 8}, {-VP56_MB_INTER_NOVEC_GF}, {-VP56_MB_INTER_DELTA_GF},
 233     { 2, 9}, {-VP56_MB_INTER_V1_GF},    {-VP56_MB_INTER_V2_GF},
 234 };
 235
 236 /* relative pos of surrounding blocks, from closest to farthest */
 237 static const int8_t vp56_candidate_predictor_pos[12][2] = {
 238     {  0, -1 },
 239     { -1,  0 },
 240     { -1, -1 },
 241     {  1, -1 },
 242     {  0, -2 },
 243     { -2,  0 },
 244     { -2, -1 },
 245     { -1, -2 },
 246     {  1, -2 },
 247     {  2, -1 },
 248     { -2, -2 },
 249     {  2, -2 },
 250 };
 251
 252 #endif /* AVCODEC_VP56DATA_H */