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FFmpeg/libavcodec/vp56data.h

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  1. /*

  2.  * Copyright (C) 2006  Aurelien Jacobs <aurel@gnuage.org>

  3.  *

  4.  * This file is part of FFmpeg.

  5.  *

  6.  * FFmpeg is free software; you can redistribute it and/or

  7.  * modify it under the terms of the GNU Lesser General Public

  8.  * License as published by the Free Software Foundation; either

  9.  * version 2.1 of the License, or (at your option) any later version.

  10.  *

  11.  * FFmpeg is distributed in the hope that it will be useful,

  12.  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  13.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

  14.  * Lesser General Public License for more details.

  15.  *

  16.  * You should have received a copy of the GNU Lesser General Public

  17.  * License along with FFmpeg; if not, write to the Free Software

  18.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

  19.  */

  20. 

  21. /**

  22.  * @file

  23.  * VP5 and VP6 compatible video decoder (common data)

  24.  */

  25. 

  26. #ifndef AVCODEC_VP56DATA_H

  27. #define AVCODEC_VP56DATA_H

  28. 

  29. #include "libavutil/common.h"

  30. 

  31. typedef enum {

  32.     VP56_FRAME_NONE     =-1,

  33.     VP56_FRAME_CURRENT  = 0,

  34.     VP56_FRAME_PREVIOUS = 1,

  35.     VP56_FRAME_GOLDEN   = 2,

  36.     VP56_FRAME_GOLDEN2  = 3,

  37.     VP56_FRAME_UNUSED   = 4,

  38.     VP56_FRAME_UNUSED2  = 5,

  39. } VP56Frame;

  40. 

  41. typedef enum {

  42.     VP56_MB_INTER_NOVEC_PF = 0,  /**< Inter MB, no vector, from previous frame */

  43.     VP56_MB_INTRA          = 1,  /**< Intra MB */

  44.     VP56_MB_INTER_DELTA_PF = 2,  /**< Inter MB, above/left vector + delta, from previous frame */

  45.     VP56_MB_INTER_V1_PF    = 3,  /**< Inter MB, first vector, from previous frame */

  46.     VP56_MB_INTER_V2_PF    = 4,  /**< Inter MB, second vector, from previous frame */

  47.     VP56_MB_INTER_NOVEC_GF = 5,  /**< Inter MB, no vector, from golden frame */

  48.     VP56_MB_INTER_DELTA_GF = 6,  /**< Inter MB, above/left vector + delta, from golden frame */

  49.     VP56_MB_INTER_4V       = 7,  /**< Inter MB, 4 vectors, from previous frame */

  50.     VP56_MB_INTER_V1_GF    = 8,  /**< Inter MB, first vector, from golden frame */

  51.     VP56_MB_INTER_V2_GF    = 9,  /**< Inter MB, second vector, from golden frame */

  52. } VP56mb;

  53. 

  54. typedef struct {

  55.   int8_t val;

  56.   int8_t prob_idx;

  57. } VP56Tree;

  58. 

  59. extern const uint8_t ff_vp56_b2p[];

  60. extern const uint8_t ff_vp56_b6to4[];

  61. extern const uint8_t ff_vp56_coeff_parse_table[6][11];

  62. extern const uint8_t ff_vp56_def_mb_types_stats[3][10][2];

  63. extern const VP56Tree ff_vp56_pva_tree[];

  64. extern const VP56Tree ff_vp56_pc_tree[];

  65. extern const uint8_t ff_vp56_coeff_bias[];

  66. extern const uint8_t ff_vp56_coeff_bit_length[];

  67. 

  68. static const VP56Frame vp56_reference_frame[] = {

  69.     VP56_FRAME_PREVIOUS,  /* VP56_MB_INTER_NOVEC_PF */

  70.     VP56_FRAME_CURRENT,   /* VP56_MB_INTRA */

  71.     VP56_FRAME_PREVIOUS,  /* VP56_MB_INTER_DELTA_PF */

  72.     VP56_FRAME_PREVIOUS,  /* VP56_MB_INTER_V1_PF */

  73.     VP56_FRAME_PREVIOUS,  /* VP56_MB_INTER_V2_PF */

  74.     VP56_FRAME_GOLDEN,    /* VP56_MB_INTER_NOVEC_GF */

  75.     VP56_FRAME_GOLDEN,    /* VP56_MB_INTER_DELTA_GF */

  76.     VP56_FRAME_PREVIOUS,  /* VP56_MB_INTER_4V */

  77.     VP56_FRAME_GOLDEN,    /* VP56_MB_INTER_V1_GF */

  78.     VP56_FRAME_GOLDEN,    /* VP56_MB_INTER_V2_GF */

  79. };

  80. 

  81. static const uint8_t vp56_ac_dequant[64] = {

  82.     94, 92, 90, 88, 86, 82, 78, 74,

  83.     70, 66, 62, 58, 54, 53, 52, 51,

  84.     50, 49, 48, 47, 46, 45, 44, 43,

  85.     42, 40, 39, 37, 36, 35, 34, 33,

  86.     32, 31, 30, 29, 28, 27, 26, 25,

  87.     24, 23, 22, 21, 20, 19, 18, 17,

  88.     16, 15, 14, 13, 12, 11, 10,  9,

  89.      8,  7,  6,  5,  4,  3,  2,  1,

  90. };

  91. 

  92. static const uint8_t vp56_dc_dequant[64] = {

  93.     47, 47, 47, 47, 45, 43, 43, 43,

  94.     43, 43, 42, 41, 41, 40, 40, 40,

  95.     40, 35, 35, 35, 35, 33, 33, 33,

  96.     33, 32, 32, 32, 27, 27, 26, 26,

  97.     25, 25, 24, 24, 23, 23, 19, 19,

  98.     19, 19, 18, 18, 17, 16, 16, 16,

  99.     16, 16, 15, 11, 11, 11, 10, 10,

  100.      9,  8,  7,  5,  3,  3,  2,  2,

  101. };

  102. 

  103. static const uint8_t vp56_pre_def_mb_type_stats[16][3][10][2] = {

  104.   { { {   9, 15 }, {  32, 25 }, {  7,  19 }, {   9, 21 }, {  1, 12 },

  105.       {  14, 12 }, {   3, 18 }, { 14,  23 }, {   3, 10 }, {  0,  4 }, },

  106.     { {  41, 22 }, {   1,  0 }, {  1,  31 }, {   0,  0 }, {  0,  0 },

  107.       {   0,  1 }, {   1,  7 }, {  0,   1 }, {  98, 25 }, {  4, 10 }, },

  108.     { {   2,  3 }, {   2,  3 }, {  0,   2 }, {   0,  2 }, {  0,  0 },

  109.       {  11,  4 }, {   1,  4 }, {  0,   2 }, {   3,  2 }, {  0,  4 }, }, },

  110.   { { {  48, 39 }, {   1,  2 }, { 11,  27 }, {  29, 44 }, {  7, 27 },

  111.       {   1,  4 }, {   0,  3 }, {  1,   6 }, {   1,  2 }, {  0,  0 }, },

  112.     { { 123, 37 }, {   6,  4 }, {  1,  27 }, {   0,  0 }, {  0,  0 },

  113.       {   5,  8 }, {   1,  7 }, {  0,   1 }, {  12, 10 }, {  0,  2 }, },

  114.     { {  49, 46 }, {   3,  4 }, {  7,  31 }, {  42, 41 }, {  0,  0 },

  115.       {   2,  6 }, {   1,  7 }, {  1,   4 }, {   2,  4 }, {  0,  1 }, }, },

  116.   { { {  21, 32 }, {   1,  2 }, {  4,  10 }, {  32, 43 }, {  6, 23 },

  117.       {   2,  3 }, {   1, 19 }, {  1,   6 }, {  12, 21 }, {  0,  7 }, },

  118.     { {  26, 14 }, {  14, 12 }, {  0,  24 }, {   0,  0 }, {  0,  0 },

  119.       {  55, 17 }, {   1,  9 }, {  0,  36 }, {   5,  7 }, {  1,  3 }, },

  120.     { {  26, 25 }, {   1,  1 }, {  2,  10 }, {  67, 39 }, {  0,  0 },

  121.       {   1,  1 }, {   0, 14 }, {  0,   2 }, {  31, 26 }, {  1,  6 }, }, },

  122.   { { {  69, 83 }, {   0,  0 }, {  0,   2 }, {  10, 29 }, {  3, 12 },

  123.       {   0,  1 }, {   0,  3 }, {  0,   3 }, {   2,  2 }, {  0,  0 }, },

  124.     { { 209,  5 }, {   0,  0 }, {  0,  27 }, {   0,  0 }, {  0,  0 },

  125.       {   0,  1 }, {   0,  1 }, {  0,   1 }, {   0,  0 }, {  0,  0 }, },

  126.     { { 103, 46 }, {   1,  2 }, {  2,  10 }, {  33, 42 }, {  0,  0 },

  127.       {   1,  4 }, {   0,  3 }, {  0,   1 }, {   1,  3 }, {  0,  0 }, }, },

  128.   { { {  11, 20 }, {   1,  4 }, { 18,  36 }, {  43, 48 }, { 13, 35 },

  129.       {   0,  2 }, {   0,  5 }, {  3,  12 }, {   1,  2 }, {  0,  0 }, },

  130.     { {   2,  5 }, {   4,  5 }, {  0, 121 }, {   0,  0 }, {  0,  0 },

  131.       {   0,  3 }, {   2,  4 }, {  1,   4 }, {   2,  2 }, {  0,  1 }, },

  132.     { {  14, 31 }, {   9, 13 }, { 14,  54 }, {  22, 29 }, {  0,  0 },

  133.       {   2,  6 }, {   4, 18 }, {  6,  13 }, {   1,  5 }, {  0,  1 }, }, },

  134.   { { {  70, 44 }, {   0,  1 }, {  2,  10 }, {  37, 46 }, {  8, 26 },

  135.       {   0,  2 }, {   0,  2 }, {  0,   2 }, {   0,  1 }, {  0,  0 }, },

  136.     { { 175,  5 }, {   0,  1 }, {  0,  48 }, {   0,  0 }, {  0,  0 },

  137.       {   0,  2 }, {   0,  1 }, {  0,   2 }, {   0,  1 }, {  0,  0 }, },

  138.     { {  85, 39 }, {   0,  0 }, {  1,   9 }, {  69, 40 }, {  0,  0 },

  139.       {   0,  1 }, {   0,  3 }, {  0,   1 }, {   2,  3 }, {  0,  0 }, }, },

  140.   { { {   8, 15 }, {   0,  1 }, {  8,  21 }, {  74, 53 }, { 22, 42 },

  141.       {   0,  1 }, {   0,  2 }, {  0,   3 }, {   1,  2 }, {  0,  0 }, },

  142.     { {  83,  5 }, {   2,  3 }, {  0, 102 }, {   0,  0 }, {  0,  0 },

  143.       {   1,  3 }, {   0,  2 }, {  0,   1 }, {   0,  0 }, {  0,  0 }, },

  144.     { {  31, 28 }, {   0,  0 }, {  3,  14 }, { 130, 34 }, {  0,  0 },

  145.       {   0,  1 }, {   0,  3 }, {  0,   1 }, {   3,  3 }, {  0,  1 }, }, },

  146.   { { { 141, 42 }, {   0,  0 }, {  1,   4 }, {  11, 24 }, {  1, 11 },

  147.       {   0,  1 }, {   0,  1 }, {  0,   2 }, {   0,  0 }, {  0,  0 }, },

  148.     { { 233,  6 }, {   0,  0 }, {  0,   8 }, {   0,  0 }, {  0,  0 },

  149.       {   0,  1 }, {   0,  1 }, {  0,   0 }, {   0,  1 }, {  0,  0 }, },

  150.     { { 171, 25 }, {   0,  0 }, {  1,   5 }, {  25, 21 }, {  0,  0 },

  151.       {   0,  1 }, {   0,  1 }, {  0,   0 }, {   0,  0 }, {  0,  0 }, }, },

  152.   { { {   8, 19 }, {   4, 10 }, { 24,  45 }, {  21, 37 }, {  9, 29 },

  153.       {   0,  3 }, {   1,  7 }, { 11,  25 }, {   0,  2 }, {  0,  1 }, },

  154.     { {  34, 16 }, { 112, 21 }, {  1,  28 }, {   0,  0 }, {  0,  0 },

  155.       {   6,  8 }, {   1,  7 }, {  0,   3 }, {   2,  5 }, {  0,  2 }, },

  156.     { {  17, 21 }, {  68, 29 }, {  6,  15 }, {  13, 22 }, {  0,  0 },

  157.       {   6, 12 }, {   3, 14 }, {  4,  10 }, {   1,  7 }, {  0,  3 }, }, },

  158.   { { {  46, 42 }, {   0,  1 }, {  2,  10 }, {  54, 51 }, { 10, 30 },

  159.       {   0,  2 }, {   0,  2 }, {  0,   1 }, {   0,  1 }, {  0,  0 }, },

  160.     { { 159, 35 }, {   2,  2 }, {  0,  25 }, {   0,  0 }, {  0,  0 },

  161.       {   3,  6 }, {   0,  5 }, {  0,   1 }, {   4,  4 }, {  0,  1 }, },

  162.     { {  51, 39 }, {   0,  1 }, {  2,  12 }, {  91, 44 }, {  0,  0 },

  163.       {   0,  2 }, {   0,  3 }, {  0,   1 }, {   2,  3 }, {  0,  1 }, }, },

  164.   { { {  28, 32 }, {   0,  0 }, {  3,  10 }, {  75, 51 }, { 14, 33 },

  165.       {   0,  1 }, {   0,  2 }, {  0,   1 }, {   1,  2 }, {  0,  0 }, },

  166.     { {  75, 39 }, {   5,  7 }, {  2,  48 }, {   0,  0 }, {  0,  0 },

  167.       {   3, 11 }, {   2, 16 }, {  1,   4 }, {   7, 10 }, {  0,  2 }, },

  168.     { {  81, 25 }, {   0,  0 }, {  2,   9 }, { 106, 26 }, {  0,  0 },

  169.       {   0,  1 }, {   0,  1 }, {  0,   1 }, {   1,  1 }, {  0,  0 }, }, },

  170.   { { { 100, 46 }, {   0,  1 }, {  3,   9 }, {  21, 37 }, {  5, 20 },

  171.       {   0,  1 }, {   0,  2 }, {  1,   2 }, {   0,  1 }, {  0,  0 }, },

  172.     { { 212, 21 }, {   0,  1 }, {  0,   9 }, {   0,  0 }, {  0,  0 },

  173.       {   1,  2 }, {   0,  2 }, {  0,   0 }, {   2,  2 }, {  0,  0 }, },

  174.     { { 140, 37 }, {   0,  1 }, {  1,   8 }, {  24, 33 }, {  0,  0 },

  175.       {   1,  2 }, {   0,  2 }, {  0,   1 }, {   1,  2 }, {  0,  0 }, }, },

  176.   { { {  27, 29 }, {   0,  1 }, {  9,  25 }, {  53, 51 }, { 12, 34 },

  177.       {   0,  1 }, {   0,  3 }, {  1,   5 }, {   0,  2 }, {  0,  0 }, },

  178.     { {   4,  2 }, {   0,  0 }, {  0, 172 }, {   0,  0 }, {  0,  0 },

  179.       {   0,  1 }, {   0,  2 }, {  0,   0 }, {   2,  0 }, {  0,  0 }, },

  180.     { {  14, 23 }, {   1,  3 }, { 11,  53 }, {  90, 31 }, {  0,  0 },

  181.       {   0,  3 }, {   1,  5 }, {  2,   6 }, {   1,  2 }, {  0,  0 }, }, },

  182.   { { {  80, 38 }, {   0,  0 }, {  1,   4 }, {  69, 33 }, {  5, 16 },

  183.       {   0,  1 }, {   0,  1 }, {  0,   0 }, {   0,  1 }, {  0,  0 }, },

  184.     { { 187, 22 }, {   1,  1 }, {  0,  17 }, {   0,  0 }, {  0,  0 },

  185.       {   3,  6 }, {   0,  4 }, {  0,   1 }, {   4,  4 }, {  0,  1 }, },

  186.     { { 123, 29 }, {   0,  0 }, {  1,   7 }, {  57, 30 }, {  0,  0 },

  187.       {   0,  1 }, {   0,  1 }, {  0,   1 }, {   0,  1 }, {  0,  0 }, }, },

  188.   { { {  16, 20 }, {   0,  0 }, {  2,   8 }, { 104, 49 }, { 15, 33 },

  189.       {   0,  1 }, {   0,  1 }, {  0,   1 }, {   1,  1 }, {  0,  0 }, },

  190.     { { 133,  6 }, {   1,  2 }, {  1,  70 }, {   0,  0 }, {  0,  0 },

  191.       {   0,  2 }, {   0,  4 }, {  0,   3 }, {   1,  1 }, {  0,  0 }, },

  192.     { {  13, 14 }, {   0,  0 }, {  4,  20 }, { 175, 20 }, {  0,  0 },

  193.       {   0,  1 }, {   0,  1 }, {  0,   1 }, {   1,  1 }, {  0,  0 }, }, },

  194.   { { { 194, 16 }, {   0,  0 }, {  1,   1 }, {   1,  9 }, {  1,  3 },

  195.       {   0,  0 }, {   0,  1 }, {  0,   1 }, {   0,  0 }, {  0,  0 }, },

  196.     { { 251,  1 }, {   0,  0 }, {  0,   2 }, {   0,  0 }, {  0,  0 },

  197.       {   0,  0 }, {   0,  0 }, {  0,   0 }, {   0,  0 }, {  0,  0 }, },

  198.     { { 202, 23 }, {   0,  0 }, {  1,   3 }, {   2,  9 }, {  0,  0 },

  199.       {   0,  1 }, {   0,  1 }, {  0,   1 }, {   0,  0 }, {  0,  0 }, }, },

  200. };

  201. 

  202. static const uint8_t vp56_filter_threshold[] = {

  203.     14, 14, 13, 13, 12, 12, 10, 10,

  204.     10, 10,  8,  8,  8,  8,  8,  8,

  205.      8,  8,  8,  8,  8,  8,  8,  8,

  206.      8,  8,  8,  8,  8,  8,  8,  8,

  207.      8,  8,  8,  8,  7,  7,  7,  7,

  208.      7,  7,  6,  6,  6,  6,  6,  6,

  209.      5,  5,  5,  5,  4,  4,  4,  4,

  210.      4,  4,  4,  3,  3,  3,  3,  2,

  211. };

  212. 

  213. static const uint8_t vp56_mb_type_model_model[] = {

  214.     171, 83, 199, 140, 125, 104,

  215. };

  216. 

  217. static const VP56Tree vp56_pmbtm_tree[] = {

  218.     { 4, 0},

  219.     { 2, 1}, {-8}, {-4},

  220.     { 8, 2},

  221.     { 6, 3},

  222.     { 4, 4},

  223.     { 2, 5}, {-24}, {-20}, {-16}, {-12}, {-0},

  224. };

  225. 

  226. static const VP56Tree vp56_pmbt_tree[] = {

  227.     { 8, 1},

  228.     { 4, 2},

  229.     { 2, 4}, {-VP56_MB_INTER_NOVEC_PF}, {-VP56_MB_INTER_DELTA_PF},

  230.     { 2, 5}, {-VP56_MB_INTER_V1_PF},    {-VP56_MB_INTER_V2_PF},

  231.     { 4, 3},

  232.     { 2, 6}, {-VP56_MB_INTRA},          {-VP56_MB_INTER_4V},

  233.     { 4, 7},

  234.     { 2, 8}, {-VP56_MB_INTER_NOVEC_GF}, {-VP56_MB_INTER_DELTA_GF},

  235.     { 2, 9}, {-VP56_MB_INTER_V1_GF},    {-VP56_MB_INTER_V2_GF},

  236. };

  237. 

  238. /* relative pos of surrounding blocks, from closest to farthest */

  239. static const int8_t vp56_candidate_predictor_pos[12][2] = {

  240.     {  0, -1 },

  241.     { -1,  0 },

  242.     { -1, -1 },

  243.     {  1, -1 },

  244.     {  0, -2 },

  245.     { -2,  0 },

  246.     { -2, -1 },

  247.     { -1, -2 },

  248.     {  1, -2 },

  249.     {  2, -1 },

  250.     { -2, -2 },

  251.     {  2, -2 },

  252. };

  253. 

  254. #endif /* AVCODEC_VP56DATA_H */