| GCC Code Coverage Report | |||||||||||||||||||||
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| Line | Branch | Exec | Source |
1 |
/* |
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2 |
* Chinese AVS video (AVS1-P2, JiZhun profile) decoder. |
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3 |
* Copyright (c) 2006 Stefan Gehrer <stefan.gehrer@gmx.de> |
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4 |
* |
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5 |
* This file is part of FFmpeg. |
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6 |
* |
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7 |
* FFmpeg is free software; you can redistribute it and/or |
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8 |
* modify it under the terms of the GNU Lesser General Public |
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9 |
* License as published by the Free Software Foundation; either |
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10 |
* version 2.1 of the License, or (at your option) any later version. |
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11 |
* |
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12 |
* FFmpeg is distributed in the hope that it will be useful, |
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13 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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15 |
* Lesser General Public License for more details. |
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16 |
* |
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17 |
* You should have received a copy of the GNU Lesser General Public |
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18 |
* License along with FFmpeg; if not, write to the Free Software |
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19 |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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20 |
*/ |
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21 |
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22 |
/** |
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23 |
* @file |
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24 |
* Chinese AVS video (AVS1-P2, JiZhun profile) decoder |
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25 |
* @author Stefan Gehrer <stefan.gehrer@gmx.de> |
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26 |
*/ |
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27 |
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28 |
#include "libavutil/avassert.h" |
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29 |
#include "avcodec.h" |
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30 |
#include "get_bits.h" |
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31 |
#include "golomb.h" |
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32 |
#include "cavs.h" |
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33 |
#include "internal.h" |
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34 |
#include "mpeg12data.h" |
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35 |
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36 |
static const uint8_t mv_scan[4] = { |
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37 |
MV_FWD_X0, MV_FWD_X1, |
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38 |
MV_FWD_X2, MV_FWD_X3 |
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39 |
}; |
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40 |
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41 |
static const uint8_t cbp_tab[64][2] = { |
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42 |
{ 63, 0 }, { 15, 15 }, { 31, 63 }, { 47, 31 }, { 0, 16 }, { 14, 32 }, { 13, 47 }, { 11, 13 }, |
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43 |
{ 7, 14 }, { 5, 11 }, { 10, 12 }, { 8, 5 }, { 12, 10 }, { 61, 7 }, { 4, 48 }, { 55, 3 }, |
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44 |
{ 1, 2 }, { 2, 8 }, { 59, 4 }, { 3, 1 }, { 62, 61 }, { 9, 55 }, { 6, 59 }, { 29, 62 }, |
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45 |
{ 45, 29 }, { 51, 27 }, { 23, 23 }, { 39, 19 }, { 27, 30 }, { 46, 28 }, { 53, 9 }, { 30, 6 }, |
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46 |
{ 43, 60 }, { 37, 21 }, { 60, 44 }, { 16, 26 }, { 21, 51 }, { 28, 35 }, { 19, 18 }, { 35, 20 }, |
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47 |
{ 42, 24 }, { 26, 53 }, { 44, 17 }, { 32, 37 }, { 58, 39 }, { 24, 45 }, { 20, 58 }, { 17, 43 }, |
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48 |
{ 18, 42 }, { 48, 46 }, { 22, 36 }, { 33, 33 }, { 25, 34 }, { 49, 40 }, { 40, 52 }, { 36, 49 }, |
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49 |
{ 34, 50 }, { 50, 56 }, { 52, 25 }, { 54, 22 }, { 41, 54 }, { 56, 57 }, { 38, 41 }, { 57, 38 } |
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50 |
}; |
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51 |
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52 |
static const uint8_t scan3x3[4] = { 4, 5, 7, 8 }; |
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53 |
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54 |
static const uint8_t dequant_shift[64] = { |
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55 |
14, 14, 14, 14, 14, 14, 14, 14, |
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56 |
13, 13, 13, 13, 13, 13, 13, 13, |
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57 |
13, 12, 12, 12, 12, 12, 12, 12, |
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58 |
11, 11, 11, 11, 11, 11, 11, 11, |
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59 |
11, 10, 10, 10, 10, 10, 10, 10, |
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60 |
10, 9, 9, 9, 9, 9, 9, 9, |
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61 |
9, 8, 8, 8, 8, 8, 8, 8, |
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62 |
7, 7, 7, 7, 7, 7, 7, 7 |
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63 |
}; |
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64 |
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65 |
static const uint16_t dequant_mul[64] = { |
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66 |
32768, 36061, 38968, 42495, 46341, 50535, 55437, 60424, |
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67 |
32932, 35734, 38968, 42495, 46177, 50535, 55109, 59933, |
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68 |
65535, 35734, 38968, 42577, 46341, 50617, 55027, 60097, |
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69 |
32809, 35734, 38968, 42454, 46382, 50576, 55109, 60056, |
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70 |
65535, 35734, 38968, 42495, 46320, 50515, 55109, 60076, |
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71 |
65535, 35744, 38968, 42495, 46341, 50535, 55099, 60087, |
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72 |
65535, 35734, 38973, 42500, 46341, 50535, 55109, 60097, |
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73 |
32771, 35734, 38965, 42497, 46341, 50535, 55109, 60099 |
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74 |
}; |
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75 |
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76 |
#define EOB 0, 0, 0 |
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77 |
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78 |
static const struct dec_2dvlc intra_dec[7] = { |
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79 |
{ |
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80 |
{ //level / run / table_inc |
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81 |
{ 1, 1, 1 }, { -1, 1, 1 }, { 1, 2, 1 }, { -1, 2, 1 }, { 1, 3, 1 }, { -1, 3, 1 }, |
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82 |
{ 1, 4, 1 }, { -1, 4, 1 }, { 1, 5, 1 }, { -1, 5, 1 }, { 1, 6, 1 }, { -1, 6, 1 }, |
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83 |
{ 1, 7, 1 }, { -1, 7, 1 }, { 1, 8, 1 }, { -1, 8, 1 }, { 1, 9, 1 }, { -1, 9, 1 }, |
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84 |
{ 1, 10, 1 }, { -1, 10, 1 }, { 1, 11, 1 }, { -1, 11, 1 }, { 2, 1, 2 }, { -2, 1, 2 }, |
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85 |
{ 1, 12, 1 }, { -1, 12, 1 }, { 1, 13, 1 }, { -1, 13, 1 }, { 1, 14, 1 }, { -1, 14, 1 }, |
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86 |
{ 1, 15, 1 }, { -1, 15, 1 }, { 2, 2, 2 }, { -2, 2, 2 }, { 1, 16, 1 }, { -1, 16, 1 }, |
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87 |
{ 1, 17, 1 }, { -1, 17, 1 }, { 3, 1, 3 }, { -3, 1, 3 }, { 1, 18, 1 }, { -1, 18, 1 }, |
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88 |
{ 1, 19, 1 }, { -1, 19, 1 }, { 2, 3, 2 }, { -2, 3, 2 }, { 1, 20, 1 }, { -1, 20, 1 }, |
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89 |
{ 1, 21, 1 }, { -1, 21, 1 }, { 2, 4, 2 }, { -2, 4, 2 }, { 1, 22, 1 }, { -1, 22, 1 }, |
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90 |
{ 2, 5, 2 }, { -2, 5, 2 }, { 1, 23, 1 }, { -1, 23, 1 }, { EOB } |
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91 |
}, |
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92 |
//level_add |
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93 |
{ 0, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, -1, -1, -1 }, |
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94 |
2, //golomb_order |
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95 |
0, //inc_limit |
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96 |
23, //max_run |
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97 |
}, |
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98 |
{ |
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99 |
{ //level / run |
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100 |
{ 1, 1, 0 }, { -1, 1, 0 }, { 1, 2, 0 }, { -1, 2, 0 }, { 2, 1, 1 }, { -2, 1, 1 }, |
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101 |
{ 1, 3, 0 }, { -1, 3, 0 }, { EOB }, { 1, 4, 0 }, { -1, 4, 0 }, { 1, 5, 0 }, |
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102 |
{ -1, 5, 0 }, { 1, 6, 0 }, { -1, 6, 0 }, { 3, 1, 2 }, { -3, 1, 2 }, { 2, 2, 1 }, |
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103 |
{ -2, 2, 1 }, { 1, 7, 0 }, { -1, 7, 0 }, { 1, 8, 0 }, { -1, 8, 0 }, { 1, 9, 0 }, |
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104 |
{ -1, 9, 0 }, { 2, 3, 1 }, { -2, 3, 1 }, { 4, 1, 2 }, { -4, 1, 2 }, { 1, 10, 0 }, |
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105 |
{ -1, 10, 0 }, { 1, 11, 0 }, { -1, 11, 0 }, { 2, 4, 1 }, { -2, 4, 1 }, { 3, 2, 2 }, |
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106 |
{ -3, 2, 2 }, { 1, 12, 0 }, { -1, 12, 0 }, { 2, 5, 1 }, { -2, 5, 1 }, { 5, 1, 3 }, |
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107 |
{ -5, 1, 3 }, { 1, 13, 0 }, { -1, 13, 0 }, { 2, 6, 1 }, { -2, 6, 1 }, { 1, 14, 0 }, |
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108 |
{ -1, 14, 0 }, { 2, 7, 1 }, { -2, 7, 1 }, { 2, 8, 1 }, { -2, 8, 1 }, { 3, 3, 2 }, |
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109 |
{ -3, 3, 2 }, { 6, 1, 3 }, { -6, 1, 3 }, { 1, 15, 0 }, { -1, 15, 0 } |
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110 |
}, |
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111 |
//level_add |
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112 |
{ 0, 7, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, |
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113 |
2, //golomb_order |
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114 |
1, //inc_limit |
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115 |
15, //max_run |
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116 |
}, |
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117 |
{ |
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118 |
{ //level / run |
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119 |
{ 1, 1, 0 }, { -1, 1, 0 }, { 2, 1, 0 }, { -2, 1, 0 }, { 1, 2, 0 }, { -1, 2, 0 }, |
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120 |
{ 3, 1, 1 }, { -3, 1, 1 }, { EOB }, { 1, 3, 0 }, { -1, 3, 0 }, { 2, 2, 0 }, |
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121 |
{ -2, 2, 0 }, { 4, 1, 1 }, { -4, 1, 1 }, { 1, 4, 0 }, { -1, 4, 0 }, { 5, 1, 2 }, |
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122 |
{ -5, 1, 2 }, { 1, 5, 0 }, { -1, 5, 0 }, { 3, 2, 1 }, { -3, 2, 1 }, { 2, 3, 0 }, |
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123 |
{ -2, 3, 0 }, { 1, 6, 0 }, { -1, 6, 0 }, { 6, 1, 2 }, { -6, 1, 2 }, { 2, 4, 0 }, |
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124 |
{ -2, 4, 0 }, { 1, 7, 0 }, { -1, 7, 0 }, { 4, 2, 1 }, { -4, 2, 1 }, { 7, 1, 2 }, |
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125 |
{ -7, 1, 2 }, { 3, 3, 1 }, { -3, 3, 1 }, { 2, 5, 0 }, { -2, 5, 0 }, { 1, 8, 0 }, |
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126 |
{ -1, 8, 0 }, { 2, 6, 0 }, { -2, 6, 0 }, { 8, 1, 3 }, { -8, 1, 3 }, { 1, 9, 0 }, |
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127 |
{ -1, 9, 0 }, { 5, 2, 2 }, { -5, 2, 2 }, { 3, 4, 1 }, { -3, 4, 1 }, { 2, 7, 0 }, |
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128 |
{ -2, 7, 0 }, { 9, 1, 3 }, { -9, 1, 3 }, { 1, 10, 0 }, { -1, 10, 0 } |
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129 |
}, |
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130 |
//level_add |
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131 |
{ 0, 10, 6, 4, 4, 3, 3, 3, 2, 2, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, |
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132 |
2, //golomb_order |
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133 |
2, //inc_limit |
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134 |
10, //max_run |
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135 |
}, |
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136 |
{ |
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137 |
{ //level / run |
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138 |
{ 1, 1, 0 }, { -1, 1, 0 }, { 2, 1, 0 }, { -2, 1, 0 }, { 3, 1, 0 }, { -3, 1, 0 }, |
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139 |
{ 1, 2, 0 }, { -1, 2, 0 }, { EOB }, { 4, 1, 0 }, { -4, 1, 0 }, { 5, 1, 1 }, |
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140 |
{ -5, 1, 1 }, { 2, 2, 0 }, { -2, 2, 0 }, { 1, 3, 0 }, { -1, 3, 0 }, { 6, 1, 1 }, |
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141 |
{ -6, 1, 1 }, { 3, 2, 0 }, { -3, 2, 0 }, { 7, 1, 1 }, { -7, 1, 1 }, { 1, 4, 0 }, |
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142 |
{ -1, 4, 0 }, { 8, 1, 2 }, { -8, 1, 2 }, { 2, 3, 0 }, { -2, 3, 0 }, { 4, 2, 0 }, |
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143 |
{ -4, 2, 0 }, { 1, 5, 0 }, { -1, 5, 0 }, { 9, 1, 2 }, { -9, 1, 2 }, { 5, 2, 1 }, |
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144 |
{ -5, 2, 1 }, { 2, 4, 0 }, { -2, 4, 0 }, { 10, 1, 2 }, {-10, 1, 2 }, { 3, 3, 0 }, |
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145 |
{ -3, 3, 0 }, { 1, 6, 0 }, { -1, 6, 0 }, { 11, 1, 3 }, {-11, 1, 3 }, { 6, 2, 1 }, |
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146 |
{ -6, 2, 1 }, { 1, 7, 0 }, { -1, 7, 0 }, { 2, 5, 0 }, { -2, 5, 0 }, { 3, 4, 0 }, |
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147 |
{ -3, 4, 0 }, { 12, 1, 3 }, {-12, 1, 3 }, { 4, 3, 0 }, { -4, 3, 0 } |
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148 |
}, |
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149 |
//level_add |
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150 |
{ 0, 13, 7, 5, 4, 3, 2, 2, -1, -1, -1 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, |
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151 |
2, //golomb_order |
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152 |
4, //inc_limit |
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153 |
7, //max_run |
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154 |
}, |
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155 |
{ |
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156 |
{ //level / run |
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157 |
{ 1, 1, 0 }, { -1, 1, 0 }, { 2, 1, 0 }, { -2, 1, 0 }, { 3, 1, 0 }, { -3, 1, 0 }, |
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158 |
{ EOB }, { 4, 1, 0 }, { -4, 1, 0 }, { 5, 1, 0 }, { -5, 1, 0 }, { 6, 1, 0 }, |
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159 |
{ -6, 1, 0 }, { 1, 2, 0 }, { -1, 2, 0 }, { 7, 1, 0 }, { -7, 1, 0 }, { 8, 1, 1 }, |
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160 |
{ -8, 1, 1 }, { 2, 2, 0 }, { -2, 2, 0 }, { 9, 1, 1 }, { -9, 1, 1 }, { 10, 1, 1 }, |
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161 |
{-10, 1, 1 }, { 1, 3, 0 }, { -1, 3, 0 }, { 3, 2, 0 }, { -3, 2, 0 }, { 11, 1, 2 }, |
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162 |
{-11, 1, 2 }, { 4, 2, 0 }, { -4, 2, 0 }, { 12, 1, 2 }, {-12, 1, 2 }, { 13, 1, 2 }, |
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163 |
{-13, 1, 2 }, { 5, 2, 0 }, { -5, 2, 0 }, { 1, 4, 0 }, { -1, 4, 0 }, { 2, 3, 0 }, |
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164 |
{ -2, 3, 0 }, { 14, 1, 2 }, {-14, 1, 2 }, { 6, 2, 0 }, { -6, 2, 0 }, { 15, 1, 2 }, |
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165 |
{-15, 1, 2 }, { 16, 1, 2 }, {-16, 1, 2 }, { 3, 3, 0 }, { -3, 3, 0 }, { 1, 5, 0 }, |
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166 |
{ -1, 5, 0 }, { 7, 2, 0 }, { -7, 2, 0 }, { 17, 1, 2 }, {-17, 1, 2 } |
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167 |
}, |
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168 |
//level_add |
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169 |
{ 0,18, 8, 4, 2, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, |
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170 |
2, //golomb_order |
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171 |
7, //inc_limit |
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172 |
5, //max_run |
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173 |
}, |
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174 |
{ |
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175 |
{ //level / run |
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176 |
{ EOB }, { 1, 1, 0 }, { -1, 1, 0 }, { 2, 1, 0 }, { -2, 1, 0 }, { 3, 1, 0 }, |
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177 |
{ -3, 1, 0 }, { 4, 1, 0 }, { -4, 1, 0 }, { 5, 1, 0 }, { -5, 1, 0 }, { 6, 1, 0 }, |
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178 |
{ -6, 1, 0 }, { 7, 1, 0 }, { -7, 1, 0 }, { 8, 1, 0 }, { -8, 1, 0 }, { 9, 1, 0 }, |
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179 |
{ -9, 1, 0 }, { 10, 1, 0 }, {-10, 1, 0 }, { 1, 2, 0 }, { -1, 2, 0 }, { 11, 1, 1 }, |
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180 |
{-11, 1, 1 }, { 12, 1, 1 }, {-12, 1, 1 }, { 13, 1, 1 }, {-13, 1, 1 }, { 2, 2, 0 }, |
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181 |
{ -2, 2, 0 }, { 14, 1, 1 }, {-14, 1, 1 }, { 15, 1, 1 }, {-15, 1, 1 }, { 3, 2, 0 }, |
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182 |
{ -3, 2, 0 }, { 16, 1, 1 }, {-16, 1, 1 }, { 1, 3, 0 }, { -1, 3, 0 }, { 17, 1, 1 }, |
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183 |
{-17, 1, 1 }, { 4, 2, 0 }, { -4, 2, 0 }, { 18, 1, 1 }, {-18, 1, 1 }, { 5, 2, 0 }, |
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184 |
{ -5, 2, 0 }, { 19, 1, 1 }, {-19, 1, 1 }, { 20, 1, 1 }, {-20, 1, 1 }, { 6, 2, 0 }, |
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185 |
{ -6, 2, 0 }, { 21, 1, 1 }, {-21, 1, 1 }, { 2, 3, 0 }, { -2, 3, 0 } |
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186 |
}, |
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187 |
//level_add |
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188 |
{ 0, 22, 7, 3, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, |
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189 |
2, //golomb_order |
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190 |
10, //inc_limit |
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191 |
3, //max_run |
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192 |
}, |
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193 |
{ |
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194 |
{ //level / run |
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195 |
{ EOB }, { 1, 1, 0 }, { -1, 1, 0 }, { 2, 1, 0 }, { -2, 1, 0 }, { 3, 1, 0 }, |
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196 |
{ -3, 1, 0 }, { 4, 1, 0 }, { -4, 1, 0 }, { 5, 1, 0 }, { -5, 1, 0 }, { 6, 1, 0 }, |
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197 |
{ -6, 1, 0 }, { 7, 1, 0 }, { -7, 1, 0 }, { 8, 1, 0 }, { -8, 1, 0 }, { 9, 1, 0 }, |
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198 |
{ -9, 1, 0 }, { 10, 1, 0 }, {-10, 1, 0 }, { 11, 1, 0 }, {-11, 1, 0 }, { 12, 1, 0 }, |
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199 |
{-12, 1, 0 }, { 13, 1, 0 }, {-13, 1, 0 }, { 14, 1, 0 }, {-14, 1, 0 }, { 15, 1, 0 }, |
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200 |
{-15, 1, 0 }, { 16, 1, 0 }, {-16, 1, 0 }, { 1, 2, 0 }, { -1, 2, 0 }, { 17, 1, 0 }, |
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201 |
{-17, 1, 0 }, { 18, 1, 0 }, {-18, 1, 0 }, { 19, 1, 0 }, {-19, 1, 0 }, { 20, 1, 0 }, |
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202 |
{-20, 1, 0 }, { 21, 1, 0 }, {-21, 1, 0 }, { 2, 2, 0 }, { -2, 2, 0 }, { 22, 1, 0 }, |
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203 |
{-22, 1, 0 }, { 23, 1, 0 }, {-23, 1, 0 }, { 24, 1, 0 }, {-24, 1, 0 }, { 25, 1, 0 }, |
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204 |
{-25, 1, 0 }, { 3, 2, 0 }, { -3, 2, 0 }, { 26, 1, 0 }, {-26, 1, 0 } |
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205 |
}, |
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206 |
//level_add |
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207 |
{ 0, 27, 4, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, |
||
208 |
2, //golomb_order |
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209 |
INT_MAX, //inc_limit |
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210 |
2, //max_run |
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211 |
} |
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212 |
}; |
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213 |
|||
214 |
static const struct dec_2dvlc inter_dec[7] = { |
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215 |
{ |
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216 |
{ //level / run |
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217 |
{ 1, 1, 1 }, { -1, 1, 1 }, { 1, 2, 1 }, { -1, 2, 1 }, { 1, 3, 1 }, { -1, 3, 1 }, |
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218 |
{ 1, 4, 1 }, { -1, 4, 1 }, { 1, 5, 1 }, { -1, 5, 1 }, { 1, 6, 1 }, { -1, 6, 1 }, |
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219 |
{ 1, 7, 1 }, { -1, 7, 1 }, { 1, 8, 1 }, { -1, 8, 1 }, { 1, 9, 1 }, { -1, 9, 1 }, |
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220 |
{ 1, 10, 1 }, { -1, 10, 1 }, { 1, 11, 1 }, { -1, 11, 1 }, { 1, 12, 1 }, { -1, 12, 1 }, |
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221 |
{ 1, 13, 1 }, { -1, 13, 1 }, { 2, 1, 2 }, { -2, 1, 2 }, { 1, 14, 1 }, { -1, 14, 1 }, |
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222 |
{ 1, 15, 1 }, { -1, 15, 1 }, { 1, 16, 1 }, { -1, 16, 1 }, { 1, 17, 1 }, { -1, 17, 1 }, |
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223 |
{ 1, 18, 1 }, { -1, 18, 1 }, { 1, 19, 1 }, { -1, 19, 1 }, { 3, 1, 3 }, { -3, 1, 3 }, |
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224 |
{ 1, 20, 1 }, { -1, 20, 1 }, { 1, 21, 1 }, { -1, 21, 1 }, { 2, 2, 2 }, { -2, 2, 2 }, |
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225 |
{ 1, 22, 1 }, { -1, 22, 1 }, { 1, 23, 1 }, { -1, 23, 1 }, { 1, 24, 1 }, { -1, 24, 1 }, |
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226 |
{ 1, 25, 1 }, { -1, 25, 1 }, { 1, 26, 1 }, { -1, 26, 1 }, { EOB } |
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227 |
}, |
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228 |
//level_add |
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229 |
{ 0, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2 }, |
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230 |
3, //golomb_order |
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231 |
0, //inc_limit |
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232 |
26 //max_run |
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233 |
}, |
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234 |
{ |
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235 |
{ //level / run |
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236 |
{ 1, 1, 0 }, { -1, 1, 0 }, { EOB }, { 1, 2, 0 }, { -1, 2, 0 }, { 1, 3, 0 }, |
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237 |
{ -1, 3, 0 }, { 1, 4, 0 }, { -1, 4, 0 }, { 1, 5, 0 }, { -1, 5, 0 }, { 1, 6, 0 }, |
||
238 |
{ -1, 6, 0 }, { 2, 1, 1 }, { -2, 1, 1 }, { 1, 7, 0 }, { -1, 7, 0 }, { 1, 8, 0 }, |
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239 |
{ -1, 8, 0 }, { 1, 9, 0 }, { -1, 9, 0 }, { 1, 10, 0 }, { -1, 10, 0 }, { 2, 2, 1 }, |
||
240 |
{ -2, 2, 1 }, { 1, 11, 0 }, { -1, 11, 0 }, { 1, 12, 0 }, { -1, 12, 0 }, { 3, 1, 2 }, |
||
241 |
{ -3, 1, 2 }, { 1, 13, 0 }, { -1, 13, 0 }, { 1, 14, 0 }, { -1, 14, 0 }, { 2, 3, 1 }, |
||
242 |
{ -2, 3, 1 }, { 1, 15, 0 }, { -1, 15, 0 }, { 2, 4, 1 }, { -2, 4, 1 }, { 1, 16, 0 }, |
||
243 |
{ -1, 16, 0 }, { 2, 5, 1 }, { -2, 5, 1 }, { 1, 17, 0 }, { -1, 17, 0 }, { 4, 1, 3 }, |
||
244 |
{ -4, 1, 3 }, { 2, 6, 1 }, { -2, 6, 1 }, { 1, 18, 0 }, { -1, 18, 0 }, { 1, 19, 0 }, |
||
245 |
{ -1, 19, 0 }, { 2, 7, 1 }, { -2, 7, 1 }, { 3, 2, 2 }, { -3, 2, 2 } |
||
246 |
}, |
||
247 |
//level_add |
||
248 |
{ 0, 5, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, -1, -1, -1, -1, -1, -1, -1 }, |
||
249 |
2, //golomb_order |
||
250 |
1, //inc_limit |
||
251 |
19 //max_run |
||
252 |
}, |
||
253 |
{ |
||
254 |
{ //level / run |
||
255 |
{ 1, 1, 0 }, { -1, 1, 0 }, { EOB }, { 1, 2, 0 }, { -1, 2, 0 }, { 2, 1, 0 }, |
||
256 |
{ -2, 1, 0 }, { 1, 3, 0 }, { -1, 3, 0 }, { 1, 4, 0 }, { -1, 4, 0 }, { 3, 1, 1 }, |
||
257 |
{ -3, 1, 1 }, { 2, 2, 0 }, { -2, 2, 0 }, { 1, 5, 0 }, { -1, 5, 0 }, { 1, 6, 0 }, |
||
258 |
{ -1, 6, 0 }, { 1, 7, 0 }, { -1, 7, 0 }, { 2, 3, 0 }, { -2, 3, 0 }, { 4, 1, 2 }, |
||
259 |
{ -4, 1, 2 }, { 1, 8, 0 }, { -1, 8, 0 }, { 3, 2, 1 }, { -3, 2, 1 }, { 2, 4, 0 }, |
||
260 |
{ -2, 4, 0 }, { 1, 9, 0 }, { -1, 9, 0 }, { 1, 10, 0 }, { -1, 10, 0 }, { 5, 1, 2 }, |
||
261 |
{ -5, 1, 2 }, { 2, 5, 0 }, { -2, 5, 0 }, { 1, 11, 0 }, { -1, 11, 0 }, { 2, 6, 0 }, |
||
262 |
{ -2, 6, 0 }, { 1, 12, 0 }, { -1, 12, 0 }, { 3, 3, 1 }, { -3, 3, 1 }, { 6, 1, 2 }, |
||
263 |
{ -6, 1, 2 }, { 4, 2, 2 }, { -4, 2, 2 }, { 1, 13, 0 }, { -1, 13, 0 }, { 2, 7, 0 }, |
||
264 |
{ -2, 7, 0 }, { 3, 4, 1 }, { -3, 4, 1 }, { 1, 14, 0 }, { -1, 14, 0 } |
||
265 |
}, |
||
266 |
//level_add |
||
267 |
{ 0, 7, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, |
||
268 |
2, //golomb_order |
||
269 |
2, //inc_limit |
||
270 |
14 //max_run |
||
271 |
}, |
||
272 |
{ |
||
273 |
{ //level / run |
||
274 |
{ 1, 1, 0 }, { -1, 1, 0 }, { EOB }, { 2, 1, 0 }, { -2, 1, 0 }, { 1, 2, 0 }, |
||
275 |
{ -1, 2, 0 }, { 3, 1, 0 }, { -3, 1, 0 }, { 1, 3, 0 }, { -1, 3, 0 }, { 2, 2, 0 }, |
||
276 |
{ -2, 2, 0 }, { 4, 1, 1 }, { -4, 1, 1 }, { 1, 4, 0 }, { -1, 4, 0 }, { 5, 1, 1 }, |
||
277 |
{ -5, 1, 1 }, { 1, 5, 0 }, { -1, 5, 0 }, { 3, 2, 0 }, { -3, 2, 0 }, { 2, 3, 0 }, |
||
278 |
{ -2, 3, 0 }, { 1, 6, 0 }, { -1, 6, 0 }, { 6, 1, 1 }, { -6, 1, 1 }, { 2, 4, 0 }, |
||
279 |
{ -2, 4, 0 }, { 1, 7, 0 }, { -1, 7, 0 }, { 4, 2, 1 }, { -4, 2, 1 }, { 7, 1, 2 }, |
||
280 |
{ -7, 1, 2 }, { 3, 3, 0 }, { -3, 3, 0 }, { 1, 8, 0 }, { -1, 8, 0 }, { 2, 5, 0 }, |
||
281 |
{ -2, 5, 0 }, { 8, 1, 2 }, { -8, 1, 2 }, { 1, 9, 0 }, { -1, 9, 0 }, { 3, 4, 0 }, |
||
282 |
{ -3, 4, 0 }, { 2, 6, 0 }, { -2, 6, 0 }, { 5, 2, 1 }, { -5, 2, 1 }, { 1, 10, 0 }, |
||
283 |
{ -1, 10, 0 }, { 9, 1, 2 }, { -9, 1, 2 }, { 4, 3, 1 }, { -4, 3, 1 } |
||
284 |
}, |
||
285 |
//level_add |
||
286 |
{ 0,10, 6, 5, 4, 3, 3, 2, 2, 2, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, |
||
287 |
2, //golomb_order |
||
288 |
3, //inc_limit |
||
289 |
10 //max_run |
||
290 |
}, |
||
291 |
{ |
||
292 |
{ //level / run |
||
293 |
{ 1, 1, 0 }, { -1, 1, 0 }, { EOB }, { 2, 1, 0 }, { -2, 1, 0 }, { 3, 1, 0 }, |
||
294 |
{ -3, 1, 0 }, { 1, 2, 0 }, { -1, 2, 0 }, { 4, 1, 0 }, { -4, 1, 0 }, { 5, 1, 0 }, |
||
295 |
{ -5, 1, 0 }, { 2, 2, 0 }, { -2, 2, 0 }, { 1, 3, 0 }, { -1, 3, 0 }, { 6, 1, 0 }, |
||
296 |
{ -6, 1, 0 }, { 3, 2, 0 }, { -3, 2, 0 }, { 7, 1, 1 }, { -7, 1, 1 }, { 1, 4, 0 }, |
||
297 |
{ -1, 4, 0 }, { 8, 1, 1 }, { -8, 1, 1 }, { 2, 3, 0 }, { -2, 3, 0 }, { 4, 2, 0 }, |
||
298 |
{ -4, 2, 0 }, { 1, 5, 0 }, { -1, 5, 0 }, { 9, 1, 1 }, { -9, 1, 1 }, { 5, 2, 0 }, |
||
299 |
{ -5, 2, 0 }, { 2, 4, 0 }, { -2, 4, 0 }, { 1, 6, 0 }, { -1, 6, 0 }, { 10, 1, 2 }, |
||
300 |
{-10, 1, 2 }, { 3, 3, 0 }, { -3, 3, 0 }, { 11, 1, 2 }, {-11, 1, 2 }, { 1, 7, 0 }, |
||
301 |
{ -1, 7, 0 }, { 6, 2, 0 }, { -6, 2, 0 }, { 3, 4, 0 }, { -3, 4, 0 }, { 2, 5, 0 }, |
||
302 |
{ -2, 5, 0 }, { 12, 1, 2 }, {-12, 1, 2 }, { 4, 3, 0 }, { -4, 3, 0 } |
||
303 |
}, |
||
304 |
//level_add |
||
305 |
{ 0, 13, 7, 5, 4, 3, 2, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, |
||
306 |
2, //golomb_order |
||
307 |
6, //inc_limit |
||
308 |
7 //max_run |
||
309 |
}, |
||
310 |
{ |
||
311 |
{ //level / run |
||
312 |
{ EOB }, { 1, 1, 0 }, { -1, 1, 0 }, { 2, 1, 0 }, { -2, 1, 0 }, { 3, 1, 0 }, |
||
313 |
{ -3, 1, 0 }, { 4, 1, 0 }, { -4, 1, 0 }, { 5, 1, 0 }, { -5, 1, 0 }, { 1, 2, 0 }, |
||
314 |
{ -1, 2, 0 }, { 6, 1, 0 }, { -6, 1, 0 }, { 7, 1, 0 }, { -7, 1, 0 }, { 8, 1, 0 }, |
||
315 |
{ -8, 1, 0 }, { 2, 2, 0 }, { -2, 2, 0 }, { 9, 1, 0 }, { -9, 1, 0 }, { 1, 3, 0 }, |
||
316 |
{ -1, 3, 0 }, { 10, 1, 1 }, { -10, 1, 1 }, { 3, 2, 0 }, { -3, 2, 0 }, { 11, 1, 1 }, |
||
317 |
{ -11, 1, 1 }, { 4, 2, 0 }, { -4, 2, 0 }, { 12, 1, 1 }, { -12, 1, 1 }, { 1, 4, 0 }, |
||
318 |
{ -1, 4, 0 }, { 2, 3, 0 }, { -2, 3, 0 }, { 13, 1, 1 }, { -13, 1, 1 }, { 5, 2, 0 }, |
||
319 |
{ -5, 2, 0 }, { 14, 1, 1 }, { -14, 1, 1 }, { 6, 2, 0 }, { -6, 2, 0 }, { 1, 5, 0 }, |
||
320 |
{ -1, 5, 0 }, { 15, 1, 1 }, { -15, 1, 1 }, { 3, 3, 0 }, { -3, 3, 0 }, { 16, 1, 1 }, |
||
321 |
{ -16, 1, 1 }, { 2, 4, 0 }, { -2, 4, 0 }, { 7, 2, 0 }, { -7, 2, 0 } |
||
322 |
}, |
||
323 |
//level_add |
||
324 |
{ 0, 17, 8, 4, 3, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, |
||
325 |
2, //golomb_order |
||
326 |
9, //inc_limit |
||
327 |
5 //max_run |
||
328 |
}, |
||
329 |
{ |
||
330 |
{ //level / run |
||
331 |
{ EOB }, { 1, 1, 0 }, { -1, 1, 0 }, { 2, 1, 0 }, { -2, 1, 0 }, { 3, 1, 0 }, |
||
332 |
{ -3, 1, 0 }, { 4, 1, 0 }, { -4, 1, 0 }, { 5, 1, 0 }, { -5, 1, 0 }, { 6, 1, 0 }, |
||
333 |
{ -6, 1, 0 }, { 7, 1, 0 }, { -7, 1, 0 }, { 1, 2, 0 }, { -1, 2, 0 }, { 8, 1, 0 }, |
||
334 |
{ -8, 1, 0 }, { 9, 1, 0 }, { -9, 1, 0 }, { 10, 1, 0 }, { -10, 1, 0 }, { 11, 1, 0 }, |
||
335 |
{ -11, 1, 0 }, { 12, 1, 0 }, { -12, 1, 0 }, { 2, 2, 0 }, { -2, 2, 0 }, { 13, 1, 0 }, |
||
336 |
{ -13, 1, 0 }, { 1, 3, 0 }, { -1, 3, 0 }, { 14, 1, 0 }, { -14, 1, 0 }, { 15, 1, 0 }, |
||
337 |
{ -15, 1, 0 }, { 3, 2, 0 }, { -3, 2, 0 }, { 16, 1, 0 }, { -16, 1, 0 }, { 17, 1, 0 }, |
||
338 |
{ -17, 1, 0 }, { 18, 1, 0 }, { -18, 1, 0 }, { 4, 2, 0 }, { -4, 2, 0 }, { 19, 1, 0 }, |
||
339 |
{ -19, 1, 0 }, { 20, 1, 0 }, { -20, 1, 0 }, { 2, 3, 0 }, { -2, 3, 0 }, { 1, 4, 0 }, |
||
340 |
{ -1, 4, 0 }, { 5, 2, 0 }, { -5, 2, 0 }, { 21, 1, 0 }, { -21, 1, 0 } |
||
341 |
}, |
||
342 |
//level_add |
||
343 |
{ 0, 22, 6, 3, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, |
||
344 |
2, //golomb_order |
||
345 |
INT_MAX, //inc_limit |
||
346 |
4 //max_run |
||
347 |
} |
||
348 |
}; |
||
349 |
|||
350 |
static const struct dec_2dvlc chroma_dec[5] = { |
||
351 |
{ |
||
352 |
{ //level / run |
||
353 |
{ 1, 1, 1 }, { -1, 1, 1 }, { 1, 2, 1 }, { -1, 2, 1 }, { 1, 3, 1 }, { -1, 3, 1 }, |
||
354 |
{ 1, 4, 1 }, { -1, 4, 1 }, { 1, 5, 1 }, { -1, 5, 1 }, { 1, 6, 1 }, { -1, 6, 1 }, |
||
355 |
{ 1, 7, 1 }, { -1, 7, 1 }, { 2, 1, 2 }, { -2, 1, 2 }, { 1, 8, 1 }, { -1, 8, 1 }, |
||
356 |
{ 1, 9, 1 }, { -1, 9, 1 }, { 1, 10, 1 }, { -1, 10, 1 }, { 1, 11, 1 }, { -1, 11, 1 }, |
||
357 |
{ 1, 12, 1 }, { -1, 12, 1 }, { 1, 13, 1 }, { -1, 13, 1 }, { 1, 14, 1 }, { -1, 14, 1 }, |
||
358 |
{ 1, 15, 1 }, { -1, 15, 1 }, { 3, 1, 3 }, { -3, 1, 3 }, { 1, 16, 1 }, { -1, 16, 1 }, |
||
359 |
{ 1, 17, 1 }, { -1, 17, 1 }, { 1, 18, 1 }, { -1, 18, 1 }, { 1, 19, 1 }, { -1, 19, 1 }, |
||
360 |
{ 1, 20, 1 }, { -1, 20, 1 }, { 1, 21, 1 }, { -1, 21, 1 }, { 1, 22, 1 }, { -1, 22, 1 }, |
||
361 |
{ 2, 2, 2 }, { -2, 2, 2 }, { 1, 23, 1 }, { -1, 23, 1 }, { 1, 24, 1 }, { -1, 24, 1 }, |
||
362 |
{ 1, 25, 1 }, { -1, 25, 1 }, { 4, 1, 3 }, { -4, 1, 3 }, { EOB } |
||
363 |
}, |
||
364 |
//level_add |
||
365 |
{ 0, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, -1 }, |
||
366 |
2, //golomb_order |
||
367 |
0, //inc_limit |
||
368 |
25 //max_run |
||
369 |
}, |
||
370 |
{ |
||
371 |
{ //level / run |
||
372 |
{ EOB }, { 1, 1, 0 }, { -1, 1, 0 }, { 1, 2, 0 }, { -1, 2, 0 }, { 2, 1, 1 }, |
||
373 |
{ -2, 1, 1 }, { 1, 3, 0 }, { -1, 3, 0 }, { 1, 4, 0 }, { -1, 4, 0 }, { 1, 5, 0 }, |
||
374 |
{ -1, 5, 0 }, { 1, 6, 0 }, { -1, 6, 0 }, { 3, 1, 2 }, { -3, 1, 2 }, { 1, 7, 0 }, |
||
375 |
{ -1, 7, 0 }, { 1, 8, 0 }, { -1, 8, 0 }, { 2, 2, 1 }, { -2, 2, 1 }, { 1, 9, 0 }, |
||
376 |
{ -1, 9, 0 }, { 1, 10, 0 }, { -1, 10, 0 }, { 1, 11, 0 }, { -1, 11, 0 }, { 4, 1, 2 }, |
||
377 |
{ -4, 1, 2 }, { 1, 12, 0 }, { -1, 12, 0 }, { 1, 13, 0 }, { -1, 13, 0 }, { 1, 14, 0 }, |
||
378 |
{ -1, 14, 0 }, { 2, 3, 1 }, { -2, 3, 1 }, { 1, 15, 0 }, { -1, 15, 0 }, { 2, 4, 1 }, |
||
379 |
{ -2, 4, 1 }, { 5, 1, 3 }, { -5, 1, 3 }, { 3, 2, 2 }, { -3, 2, 2 }, { 1, 16, 0 }, |
||
380 |
{ -1, 16, 0 }, { 1, 17, 0 }, { -1, 17, 0 }, { 1, 18, 0 }, { -1, 18, 0 }, { 2, 5, 1 }, |
||
381 |
{ -2, 5, 1 }, { 1, 19, 0 }, { -1, 19, 0 }, { 1, 20, 0 }, { -1, 20, 0 } |
||
382 |
}, |
||
383 |
//level_add |
||
384 |
{ 0, 6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, -1, -1, -1, -1, -1, -1 }, |
||
385 |
0, //golomb_order |
||
386 |
1, //inc_limit |
||
387 |
20 //max_run |
||
388 |
}, |
||
389 |
{ |
||
390 |
{ //level / run |
||
391 |
{ 1, 1, 0 }, { -1, 1, 0 }, { EOB }, { 2, 1, 0 }, { -2, 1, 0 }, { 1, 2, 0 }, |
||
392 |
{ -1, 2, 0 }, { 3, 1, 1 }, { -3, 1, 1 }, { 1, 3, 0 }, { -1, 3, 0 }, { 4, 1, 1 }, |
||
393 |
{ -4, 1, 1 }, { 2, 2, 0 }, { -2, 2, 0 }, { 1, 4, 0 }, { -1, 4, 0 }, { 5, 1, 2 }, |
||
394 |
{ -5, 1, 2 }, { 1, 5, 0 }, { -1, 5, 0 }, { 3, 2, 1 }, { -3, 2, 1 }, { 2, 3, 0 }, |
||
395 |
{ -2, 3, 0 }, { 1, 6, 0 }, { -1, 6, 0 }, { 6, 1, 2 }, { -6, 1, 2 }, { 1, 7, 0 }, |
||
396 |
{ -1, 7, 0 }, { 2, 4, 0 }, { -2, 4, 0 }, { 7, 1, 2 }, { -7, 1, 2 }, { 1, 8, 0 }, |
||
397 |
{ -1, 8, 0 }, { 4, 2, 1 }, { -4, 2, 1 }, { 1, 9, 0 }, { -1, 9, 0 }, { 3, 3, 1 }, |
||
398 |
{ -3, 3, 1 }, { 2, 5, 0 }, { -2, 5, 0 }, { 2, 6, 0 }, { -2, 6, 0 }, { 8, 1, 2 }, |
||
399 |
{ -8, 1, 2 }, { 1, 10, 0 }, { -1, 10, 0 }, { 1, 11, 0 }, { -1, 11, 0 }, { 9, 1, 2 }, |
||
400 |
{ -9, 1, 2 }, { 5, 2, 2 }, { -5, 2, 2 }, { 3, 4, 1 }, { -3, 4, 1 }, |
||
401 |
}, |
||
402 |
//level_add |
||
403 |
{ 0,10, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, |
||
404 |
1, //golomb_order |
||
405 |
2, //inc_limit |
||
406 |
11 //max_run |
||
407 |
}, |
||
408 |
{ |
||
409 |
{ //level / run |
||
410 |
{ EOB }, { 1, 1, 0 }, { -1, 1, 0 }, { 2, 1, 0 }, { -2, 1, 0 }, { 3, 1, 0 }, |
||
411 |
{ -3, 1, 0 }, { 4, 1, 0 }, { -4, 1, 0 }, { 1, 2, 0 }, { -1, 2, 0 }, { 5, 1, 1 }, |
||
412 |
{ -5, 1, 1 }, { 2, 2, 0 }, { -2, 2, 0 }, { 6, 1, 1 }, { -6, 1, 1 }, { 1, 3, 0 }, |
||
413 |
{ -1, 3, 0 }, { 7, 1, 1 }, { -7, 1, 1 }, { 3, 2, 0 }, { -3, 2, 0 }, { 8, 1, 1 }, |
||
414 |
{ -8, 1, 1 }, { 1, 4, 0 }, { -1, 4, 0 }, { 2, 3, 0 }, { -2, 3, 0 }, { 9, 1, 1 }, |
||
415 |
{ -9, 1, 1 }, { 4, 2, 0 }, { -4, 2, 0 }, { 1, 5, 0 }, { -1, 5, 0 }, { 10, 1, 1 }, |
||
416 |
{-10, 1, 1 }, { 3, 3, 0 }, { -3, 3, 0 }, { 5, 2, 1 }, { -5, 2, 1 }, { 2, 4, 0 }, |
||
417 |
{ -2, 4, 0 }, { 11, 1, 1 }, {-11, 1, 1 }, { 1, 6, 0 }, { -1, 6, 0 }, { 12, 1, 1 }, |
||
418 |
{-12, 1, 1 }, { 1, 7, 0 }, { -1, 7, 0 }, { 6, 2, 1 }, { -6, 2, 1 }, { 13, 1, 1 }, |
||
419 |
{-13, 1, 1 }, { 2, 5, 0 }, { -2, 5, 0 }, { 1, 8, 0 }, { -1, 8, 0 }, |
||
420 |
}, |
||
421 |
//level_add |
||
422 |
{ 0, 14, 7, 4, 3, 3, 2, 2, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, |
||
423 |
1, //golomb_order |
||
424 |
4, //inc_limit |
||
425 |
8 //max_run |
||
426 |
}, |
||
427 |
{ |
||
428 |
{ //level / run |
||
429 |
{ EOB }, { 1, 1, 0 }, { -1, 1, 0 }, { 2, 1, 0 }, { -2, 1, 0 }, { 3, 1, 0 }, |
||
430 |
{ -3, 1, 0 }, { 4, 1, 0 }, { -4, 1, 0 }, { 5, 1, 0 }, { -5, 1, 0 }, { 6, 1, 0 }, |
||
431 |
{ -6, 1, 0 }, { 7, 1, 0 }, { -7, 1, 0 }, { 8, 1, 0 }, { -8, 1, 0 }, { 1, 2, 0 }, |
||
432 |
{ -1, 2, 0 }, { 9, 1, 0 }, { -9, 1, 0 }, { 10, 1, 0 }, { -10, 1, 0 }, { 11, 1, 0 }, |
||
433 |
{ -11, 1, 0 }, { 2, 2, 0 }, { -2, 2, 0 }, { 12, 1, 0 }, { -12, 1, 0 }, { 13, 1, 0 }, |
||
434 |
{ -13, 1, 0 }, { 3, 2, 0 }, { -3, 2, 0 }, { 14, 1, 0 }, { -14, 1, 0 }, { 1, 3, 0 }, |
||
435 |
{ -1, 3, 0 }, { 15, 1, 0 }, { -15, 1, 0 }, { 4, 2, 0 }, { -4, 2, 0 }, { 16, 1, 0 }, |
||
436 |
{ -16, 1, 0 }, { 17, 1, 0 }, { -17, 1, 0 }, { 5, 2, 0 }, { -5, 2, 0 }, { 1, 4, 0 }, |
||
437 |
{ -1, 4, 0 }, { 2, 3, 0 }, { -2, 3, 0 }, { 18, 1, 0 }, { -18, 1, 0 }, { 6, 2, 0 }, |
||
438 |
{ -6, 2, 0 }, { 19, 1, 0 }, { -19, 1, 0 }, { 1, 5, 0 }, { -1, 5, 0 }, |
||
439 |
}, |
||
440 |
//level_add |
||
441 |
{ 0, 20, 7, 3, 2, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }, |
||
442 |
0, //golomb_order |
||
443 |
INT_MAX, //inc_limit |
||
444 |
5, //max_run |
||
445 |
} |
||
446 |
}; |
||
447 |
|||
448 |
#undef EOB |
||
449 |
|||
450 |
/***************************************************************************** |
||
451 |
* |
||
452 |
* motion vector prediction |
||
453 |
* |
||
454 |
****************************************************************************/ |
||
455 |
|||
456 |
83018 |
static inline void store_mvs(AVSContext *h) |
|
457 |
{ |
||
458 |
83018 |
h->col_mv[h->mbidx * 4 + 0] = h->mv[MV_FWD_X0]; |
|
459 |
83018 |
h->col_mv[h->mbidx * 4 + 1] = h->mv[MV_FWD_X1]; |
|
460 |
83018 |
h->col_mv[h->mbidx * 4 + 2] = h->mv[MV_FWD_X2]; |
|
461 |
83018 |
h->col_mv[h->mbidx * 4 + 3] = h->mv[MV_FWD_X3]; |
|
462 |
83018 |
} |
|
463 |
|||
464 |
522204 |
static inline void mv_pred_direct(AVSContext *h, cavs_vector *pmv_fw, |
|
465 |
cavs_vector *col_mv) |
||
466 |
{ |
||
467 |
522204 |
cavs_vector *pmv_bw = pmv_fw + MV_BWD_OFFS; |
|
468 |
522204 |
unsigned den = h->direct_den[col_mv->ref]; |
|
469 |
522204 |
int m = FF_SIGNBIT(col_mv->x); |
|
470 |
|||
471 |
522204 |
pmv_fw->dist = h->dist[1]; |
|
472 |
522204 |
pmv_bw->dist = h->dist[0]; |
|
473 |
522204 |
pmv_fw->ref = 1; |
|
474 |
522204 |
pmv_bw->ref = 0; |
|
475 |
/* scale the co-located motion vector according to its temporal span */ |
||
476 |
522204 |
pmv_fw->x = (((den + (den * col_mv->x * pmv_fw->dist ^ m) - m - 1) >> 14) ^ m) - m; |
|
477 |
522204 |
pmv_bw->x = m - (((den + (den * col_mv->x * pmv_bw->dist ^ m) - m - 1) >> 14) ^ m); |
|
478 |
522204 |
m = FF_SIGNBIT(col_mv->y); |
|
479 |
522204 |
pmv_fw->y = (((den + (den * col_mv->y * pmv_fw->dist ^ m) - m - 1) >> 14) ^ m) - m; |
|
480 |
522204 |
pmv_bw->y = m - (((den + (den * col_mv->y * pmv_bw->dist ^ m) - m - 1) >> 14) ^ m); |
|
481 |
522204 |
} |
|
482 |
|||
483 |
28257 |
static inline void mv_pred_sym(AVSContext *h, cavs_vector *src, |
|
484 |
enum cavs_block size) |
||
485 |
{ |
||
486 |
28257 |
cavs_vector *dst = src + MV_BWD_OFFS; |
|
487 |
|||
488 |
/* backward mv is the scaled and negated forward mv */ |
||
489 |
28257 |
dst->x = -((src->x * h->sym_factor + 256) >> 9); |
|
490 |
28257 |
dst->y = -((src->y * h->sym_factor + 256) >> 9); |
|
491 |
28257 |
dst->ref = 0; |
|
492 |
28257 |
dst->dist = h->dist[0]; |
|
493 |
28257 |
set_mvs(dst, size); |
|
494 |
28257 |
} |
|
495 |
|||
496 |
/***************************************************************************** |
||
497 |
* |
||
498 |
* residual data decoding |
||
499 |
* |
||
500 |
****************************************************************************/ |
||
501 |
|||
502 |
/** kth-order exponential golomb code */ |
||
503 |
2762076 |
static inline int get_ue_code(GetBitContext *gb, int order) |
|
504 |
{ |
||
505 |
2762076 |
unsigned ret = get_ue_golomb(gb); |
|
506 |
✓✓ | 2762076 |
if (ret >= ((1U<<31)>>order)) { |
507 |
3 |
av_log(NULL, AV_LOG_ERROR, "get_ue_code: value too larger\n"); |
|
508 |
3 |
return AVERROR_INVALIDDATA; |
|
509 |
} |
||
510 |
✓✓ | 2762073 |
if (order) { |
511 |
2377209 |
return (ret<<order) + get_bits(gb, order); |
|
512 |
} |
||
513 |
384864 |
return ret; |
|
514 |
} |
||
515 |
|||
516 |
351600 |
static inline int dequant(AVSContext *h, int16_t *level_buf, uint8_t *run_buf, |
|
517 |
int16_t *dst, int mul, int shift, int coeff_num) |
||
518 |
{ |
||
519 |
351600 |
int round = 1 << (shift - 1); |
|
520 |
351600 |
int pos = -1; |
|
521 |
351600 |
const uint8_t *scantab = h->scantable.permutated; |
|
522 |
|||
523 |
/* inverse scan and dequantization */ |
||
524 |
✓✓ | 2689692 |
while (--coeff_num >= 0) { |
525 |
2338092 |
pos += run_buf[coeff_num]; |
|
526 |
✗✓ | 2338092 |
if (pos > 63) { |
527 |
av_log(h->avctx, AV_LOG_ERROR, |
||
528 |
"position out of block bounds at pic %d MB(%d,%d)\n", |
||
529 |
h->cur.poc, h->mbx, h->mby); |
||
530 |
return AVERROR_INVALIDDATA; |
||
531 |
} |
||
532 |
2338092 |
dst[scantab[pos]] = (level_buf[coeff_num] * mul + round) >> shift; |
|
533 |
} |
||
534 |
351600 |
return 0; |
|
535 |
} |
||
536 |
|||
537 |
/** |
||
538 |
* decode coefficients from one 8x8 block, dequantize, inverse transform |
||
539 |
* and add them to sample block |
||
540 |
* @param r pointer to 2D VLC table |
||
541 |
* @param esc_golomb_order escape codes are k-golomb with this order k |
||
542 |
* @param qp quantizer |
||
543 |
* @param dst location of sample block |
||
544 |
* @param stride line stride in frame buffer |
||
545 |
*/ |
||
546 |
351603 |
static int decode_residual_block(AVSContext *h, GetBitContext *gb, |
|
547 |
const struct dec_2dvlc *r, int esc_golomb_order, |
||
548 |
int qp, uint8_t *dst, ptrdiff_t stride) |
||
549 |
{ |
||
550 |
int i, esc_code, level, mask, ret; |
||
551 |
unsigned int level_code, run; |
||
552 |
int16_t level_buf[65]; |
||
553 |
uint8_t run_buf[65]; |
||
554 |
351603 |
int16_t *block = h->block; |
|
555 |
|||
556 |
✓✗ | 2689698 |
for (i = 0; i < 65; i++) { |
557 |
2689698 |
level_code = get_ue_code(gb, r->golomb_order); |
|
558 |
✓✓ | 2689698 |
if (level_code >= ESCAPE_CODE) { |
559 |
72381 |
run = ((level_code - ESCAPE_CODE) >> 1) + 1; |
|
560 |
✓✓ | 72381 |
if(run > 64) { |
561 |
3 |
av_log(h->avctx, AV_LOG_ERROR, "run %d is too large\n", run); |
|
562 |
3 |
return AVERROR_INVALIDDATA; |
|
563 |
} |
||
564 |
72378 |
esc_code = get_ue_code(gb, esc_golomb_order); |
|
565 |
✓✗✗✓ |
72378 |
if (esc_code < 0 || esc_code > 32767) { |
566 |
av_log(h->avctx, AV_LOG_ERROR, "esc_code invalid\n"); |
||
567 |
return AVERROR_INVALIDDATA; |
||
568 |
} |
||
569 |
|||
570 |
✓✓ | 72378 |
level = esc_code + (run > r->max_run ? 1 : r->level_add[run]); |
571 |
✓✓ | 140649 |
while (level > r->inc_limit) |
572 |
68271 |
r++; |
|
573 |
72378 |
mask = -(level_code & 1); |
|
574 |
72378 |
level = (level ^ mask) - mask; |
|
575 |
} else { |
||
576 |
2617317 |
level = r->rltab[level_code][0]; |
|
577 |
✓✓ | 2617317 |
if (!level) //end of block signal |
578 |
351600 |
break; |
|
579 |
2265717 |
run = r->rltab[level_code][1]; |
|
580 |
2265717 |
r += r->rltab[level_code][2]; |
|
581 |
} |
||
582 |
2338095 |
level_buf[i] = level; |
|
583 |
2338095 |
run_buf[i] = run; |
|
584 |
} |
||
585 |
✗✓ | 351600 |
if ((ret = dequant(h, level_buf, run_buf, block, dequant_mul[qp], |
586 |
351600 |
dequant_shift[qp], i)) < 0) |
|
587 |
return ret; |
||
588 |
351600 |
h->cdsp.cavs_idct8_add(dst, block, stride); |
|
589 |
351600 |
h->bdsp.clear_block(block); |
|
590 |
351600 |
return 0; |
|
591 |
} |
||
592 |
|||
593 |
|||
594 |
169615 |
static inline int decode_residual_chroma(AVSContext *h) |
|
595 |
{ |
||
596 |
✓✓ | 169615 |
if (h->cbp & (1 << 4)) { |
597 |
62361 |
int ret = decode_residual_block(h, &h->gb, chroma_dec, 0, |
|
598 |
62361 |
ff_cavs_chroma_qp[h->qp], h->cu, h->c_stride); |
|
599 |
✓✓ | 62361 |
if (ret < 0) |
600 |
1 |
return ret; |
|
601 |
} |
||
602 |
✓✓ | 169614 |
if (h->cbp & (1 << 5)) { |
603 |
69792 |
int ret = decode_residual_block(h, &h->gb, chroma_dec, 0, |
|
604 |
69792 |
ff_cavs_chroma_qp[h->qp], h->cv, h->c_stride); |
|
605 |
✗✓ | 69792 |
if (ret < 0) |
606 |
return ret; |
||
607 |
} |
||
608 |
169614 |
return 0; |
|
609 |
} |
||
610 |
|||
611 |
144271 |
static inline int decode_residual_inter(AVSContext *h) |
|
612 |
{ |
||
613 |
int block; |
||
614 |
|||
615 |
/* get coded block pattern */ |
||
616 |
144271 |
int cbp = get_ue_golomb(&h->gb); |
|
617 |
✗✓ | 144271 |
if (cbp > 63U) { |
618 |
av_log(h->avctx, AV_LOG_ERROR, "illegal inter cbp %d\n", cbp); |
||
619 |
return AVERROR_INVALIDDATA; |
||
620 |
} |
||
621 |
144271 |
h->cbp = cbp_tab[cbp][1]; |
|
622 |
|||
623 |
/* get quantizer */ |
||
624 |
✓✓✗✓ |
144271 |
if (h->cbp && !h->qp_fixed) |
625 |
h->qp = (h->qp + (unsigned)get_se_golomb(&h->gb)) & 63; |
||
626 |
✓✓ | 721355 |
for (block = 0; block < 4; block++) |
627 |
✓✓ | 577084 |
if (h->cbp & (1 << block)) |
628 |
180859 |
decode_residual_block(h, &h->gb, inter_dec, 0, h->qp, |
|
629 |
180859 |
h->cy + h->luma_scan[block], h->l_stride); |
|
630 |
144271 |
decode_residual_chroma(h); |
|
631 |
|||
632 |
144271 |
return 0; |
|
633 |
} |
||
634 |
|||
635 |
/***************************************************************************** |
||
636 |
* |
||
637 |
* macroblock level |
||
638 |
* |
||
639 |
****************************************************************************/ |
||
640 |
|||
641 |
25344 |
static inline void set_mv_intra(AVSContext *h) |
|
642 |
{ |
||
643 |
25344 |
h->mv[MV_FWD_X0] = ff_cavs_intra_mv; |
|
644 |
25344 |
set_mvs(&h->mv[MV_FWD_X0], BLK_16X16); |
|
645 |
25344 |
h->mv[MV_BWD_X0] = ff_cavs_intra_mv; |
|
646 |
25344 |
set_mvs(&h->mv[MV_BWD_X0], BLK_16X16); |
|
647 |
✓✓ | 25344 |
if (h->cur.f->pict_type != AV_PICTURE_TYPE_B) |
648 |
22282 |
h->col_type_base[h->mbidx] = I_8X8; |
|
649 |
25344 |
} |
|
650 |
|||
651 |
25344 |
static int decode_mb_i(AVSContext *h, int cbp_code) |
|
652 |
{ |
||
653 |
25344 |
GetBitContext *gb = &h->gb; |
|
654 |
unsigned pred_mode_uv; |
||
655 |
int block; |
||
656 |
uint8_t top[18]; |
||
657 |
25344 |
uint8_t *left = NULL; |
|
658 |
uint8_t *d; |
||
659 |
int ret; |
||
660 |
|||
661 |
25344 |
ff_cavs_init_mb(h); |
|
662 |
|||
663 |
/* get intra prediction modes from stream */ |
||
664 |
✓✓ | 126720 |
for (block = 0; block < 4; block++) { |
665 |
int nA, nB, predpred; |
||
666 |
101376 |
int pos = scan3x3[block]; |
|
667 |
|||
668 |
101376 |
nA = h->pred_mode_Y[pos - 1]; |
|
669 |
101376 |
nB = h->pred_mode_Y[pos - 3]; |
|
670 |
101376 |
predpred = FFMIN(nA, nB); |
|
671 |
✓✓ | 101376 |
if (predpred == NOT_AVAIL) // if either is not available |
672 |
1877 |
predpred = INTRA_L_LP; |
|
673 |
✓✓ | 101376 |
if (!get_bits1(gb)) { |
674 |
17093 |
int rem_mode = get_bits(gb, 2); |
|
675 |
17093 |
predpred = rem_mode + (rem_mode >= predpred); |
|
676 |
} |
||
677 |
101376 |
h->pred_mode_Y[pos] = predpred; |
|
678 |
} |
||
679 |
25344 |
pred_mode_uv = get_ue_golomb(gb); |
|
680 |
✗✓ | 25344 |
if (pred_mode_uv > 6) { |
681 |
av_log(h->avctx, AV_LOG_ERROR, "illegal intra chroma pred mode\n"); |
||
682 |
return AVERROR_INVALIDDATA; |
||
683 |
} |
||
684 |
25344 |
ff_cavs_modify_mb_i(h, &pred_mode_uv); |
|
685 |
|||
686 |
/* get coded block pattern */ |
||
687 |
✓✓ | 25344 |
if (h->cur.f->pict_type == AV_PICTURE_TYPE_I) |
688 |
14580 |
cbp_code = get_ue_golomb(gb); |
|
689 |
✗✓ | 25344 |
if (cbp_code > 63U) { |
690 |
av_log(h->avctx, AV_LOG_ERROR, "illegal intra cbp\n"); |
||
691 |
return AVERROR_INVALIDDATA; |
||
692 |
} |
||
693 |
25344 |
h->cbp = cbp_tab[cbp_code][0]; |
|
694 |
✓✓✗✓ |
25344 |
if (h->cbp && !h->qp_fixed) |
695 |
h->qp = (h->qp + (unsigned)get_se_golomb(gb)) & 63; //qp_delta |
||
696 |
|||
697 |
/* luma intra prediction interleaved with residual decode/transform/add */ |
||
698 |
✓✓ | 126720 |
for (block = 0; block < 4; block++) { |
699 |
101376 |
d = h->cy + h->luma_scan[block]; |
|
700 |
101376 |
ff_cavs_load_intra_pred_luma(h, top, &left, block); |
|
701 |
101376 |
h->intra_pred_l[h->pred_mode_Y[scan3x3[block]]] |
|
702 |
(d, top, left, h->l_stride); |
||
703 |
✓✓ | 101376 |
if (h->cbp & (1<<block)) { |
704 |
38591 |
ret = decode_residual_block(h, gb, intra_dec, 1, h->qp, d, h->l_stride); |
|
705 |
✗✓ | 38591 |
if (ret < 0) |
706 |
return ret; |
||
707 |
} |
||
708 |
} |
||
709 |
|||
710 |
/* chroma intra prediction */ |
||
711 |
25344 |
ff_cavs_load_intra_pred_chroma(h); |
|
712 |
25344 |
h->intra_pred_c[pred_mode_uv](h->cu, &h->top_border_u[h->mbx * 10], |
|
713 |
25344 |
h->left_border_u, h->c_stride); |
|
714 |
25344 |
h->intra_pred_c[pred_mode_uv](h->cv, &h->top_border_v[h->mbx * 10], |
|
715 |
25344 |
h->left_border_v, h->c_stride); |
|
716 |
|||
717 |
25344 |
ret = decode_residual_chroma(h); |
|
718 |
✗✓ | 25344 |
if (ret < 0) |
719 |
return ret; |
||
720 |
25344 |
ff_cavs_filter(h, I_8X8); |
|
721 |
25344 |
set_mv_intra(h); |
|
722 |
25344 |
return 0; |
|
723 |
} |
||
724 |
|||
725 |
272401 |
static inline void set_intra_mode_default(AVSContext *h) |
|
726 |
{ |
||
727 |
✗✓ | 272401 |
if (h->stream_revision > 0) { |
728 |
h->pred_mode_Y[3] = h->pred_mode_Y[6] = NOT_AVAIL; |
||
729 |
h->top_pred_Y[h->mbx * 2 + 0] = h->top_pred_Y[h->mbx * 2 + 1] = NOT_AVAIL; |
||
730 |
} else { |
||
731 |
272401 |
h->pred_mode_Y[3] = h->pred_mode_Y[6] = INTRA_L_LP; |
|
732 |
272401 |
h->top_pred_Y[h->mbx * 2 + 0] = h->top_pred_Y[h->mbx * 2 + 1] = INTRA_L_LP; |
|
733 |
} |
||
734 |
272401 |
} |
|
735 |
|||
736 |
83018 |
static void decode_mb_p(AVSContext *h, enum cavs_mb mb_type) |
|
737 |
{ |
||
738 |
83018 |
GetBitContext *gb = &h->gb; |
|
739 |
int ref[4]; |
||
740 |
|||
741 |
83018 |
ff_cavs_init_mb(h); |
|
742 |
✓✓✓✓ ✓✗ |
83018 |
switch (mb_type) { |
743 |
20801 |
case P_SKIP: |
|
744 |
20801 |
ff_cavs_mv(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_PSKIP, BLK_16X16, 0); |
|
745 |
20801 |
break; |
|
746 |
48877 |
case P_16X16: |
|
747 |
✓✓ | 48877 |
ref[0] = h->ref_flag ? 0 : get_bits1(gb); |
748 |
48877 |
ff_cavs_mv(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_MEDIAN, BLK_16X16, ref[0]); |
|
749 |
48877 |
break; |
|
750 |
3399 |
case P_16X8: |
|
751 |
✓✓ | 3399 |
ref[0] = h->ref_flag ? 0 : get_bits1(gb); |
752 |
✓✓ | 3399 |
ref[2] = h->ref_flag ? 0 : get_bits1(gb); |
753 |
3399 |
ff_cavs_mv(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_TOP, BLK_16X8, ref[0]); |
|
754 |
3399 |
ff_cavs_mv(h, MV_FWD_X2, MV_FWD_A1, MV_PRED_LEFT, BLK_16X8, ref[2]); |
|
755 |
3399 |
break; |
|
756 |
3154 |
case P_8X16: |
|
757 |
✓✓ | 3154 |
ref[0] = h->ref_flag ? 0 : get_bits1(gb); |
758 |
✓✓ | 3154 |
ref[1] = h->ref_flag ? 0 : get_bits1(gb); |
759 |
3154 |
ff_cavs_mv(h, MV_FWD_X0, MV_FWD_B3, MV_PRED_LEFT, BLK_8X16, ref[0]); |
|
760 |
3154 |
ff_cavs_mv(h, MV_FWD_X1, MV_FWD_C2, MV_PRED_TOPRIGHT, BLK_8X16, ref[1]); |
|
761 |
3154 |
break; |
|
762 |
6787 |
case P_8X8: |
|
763 |
✓✓ | 6787 |
ref[0] = h->ref_flag ? 0 : get_bits1(gb); |
764 |
✓✓ | 6787 |
ref[1] = h->ref_flag ? 0 : get_bits1(gb); |
765 |
✓✓ | 6787 |
ref[2] = h->ref_flag ? 0 : get_bits1(gb); |
766 |
✓✓ | 6787 |
ref[3] = h->ref_flag ? 0 : get_bits1(gb); |
767 |
6787 |
ff_cavs_mv(h, MV_FWD_X0, MV_FWD_B3, MV_PRED_MEDIAN, BLK_8X8, ref[0]); |
|
768 |
6787 |
ff_cavs_mv(h, MV_FWD_X1, MV_FWD_C2, MV_PRED_MEDIAN, BLK_8X8, ref[1]); |
|
769 |
6787 |
ff_cavs_mv(h, MV_FWD_X2, MV_FWD_X1, MV_PRED_MEDIAN, BLK_8X8, ref[2]); |
|
770 |
6787 |
ff_cavs_mv(h, MV_FWD_X3, MV_FWD_X0, MV_PRED_MEDIAN, BLK_8X8, ref[3]); |
|
771 |
} |
||
772 |
83018 |
ff_cavs_inter(h, mb_type); |
|
773 |
83018 |
set_intra_mode_default(h); |
|
774 |
83018 |
store_mvs(h); |
|
775 |
✓✓ | 83018 |
if (mb_type != P_SKIP) |
776 |
62217 |
decode_residual_inter(h); |
|
777 |
83018 |
ff_cavs_filter(h, mb_type); |
|
778 |
83018 |
h->col_type_base[h->mbidx] = mb_type; |
|
779 |
83018 |
} |
|
780 |
|||
781 |
189383 |
static int decode_mb_b(AVSContext *h, enum cavs_mb mb_type) |
|
782 |
{ |
||
783 |
int block; |
||
784 |
enum cavs_sub_mb sub_type[4]; |
||
785 |
int flags; |
||
786 |
|||
787 |
189383 |
ff_cavs_init_mb(h); |
|
788 |
|||
789 |
/* reset all MVs */ |
||
790 |
189383 |
h->mv[MV_FWD_X0] = ff_cavs_dir_mv; |
|
791 |
189383 |
set_mvs(&h->mv[MV_FWD_X0], BLK_16X16); |
|
792 |
189383 |
h->mv[MV_BWD_X0] = ff_cavs_dir_mv; |
|
793 |
189383 |
set_mvs(&h->mv[MV_BWD_X0], BLK_16X16); |
|
794 |
✓✓✓✓ ✓✓ |
189383 |
switch (mb_type) { |
795 |
144973 |
case B_SKIP: |
|
796 |
case B_DIRECT: |
||
797 |
✓✓ | 144973 |
if (!h->col_type_base[h->mbidx]) { |
798 |
/* intra MB at co-location, do in-plane prediction */ |
||
799 |
14422 |
ff_cavs_mv(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_BSKIP, BLK_16X16, 1); |
|
800 |
14422 |
ff_cavs_mv(h, MV_BWD_X0, MV_BWD_C2, MV_PRED_BSKIP, BLK_16X16, 0); |
|
801 |
} else |
||
802 |
/* direct prediction from co-located P MB, block-wise */ |
||
803 |
✓✓ | 652755 |
for (block = 0; block < 4; block++) |
804 |
522204 |
mv_pred_direct(h, &h->mv[mv_scan[block]], |
|
805 |
522204 |
&h->col_mv[h->mbidx * 4 + block]); |
|
806 |
144973 |
break; |
|
807 |
7233 |
case B_FWD_16X16: |
|
808 |
7233 |
ff_cavs_mv(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_MEDIAN, BLK_16X16, 1); |
|
809 |
7233 |
break; |
|
810 |
3127 |
case B_SYM_16X16: |
|
811 |
3127 |
ff_cavs_mv(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_MEDIAN, BLK_16X16, 1); |
|
812 |
3127 |
mv_pred_sym(h, &h->mv[MV_FWD_X0], BLK_16X16); |
|
813 |
3127 |
break; |
|
814 |
5750 |
case B_BWD_16X16: |
|
815 |
5750 |
ff_cavs_mv(h, MV_BWD_X0, MV_BWD_C2, MV_PRED_MEDIAN, BLK_16X16, 0); |
|
816 |
5750 |
break; |
|
817 |
13716 |
case B_8X8: |
|
818 |
#define TMP_UNUSED_INX 7 |
||
819 |
13716 |
flags = 0; |
|
820 |
✓✓ | 68580 |
for (block = 0; block < 4; block++) |
821 |
54864 |
sub_type[block] = get_bits(&h->gb, 2); |
|
822 |
✓✓ | 68580 |
for (block = 0; block < 4; block++) { |
823 |
✗✓✓✓ |
54864 |
switch (sub_type[block]) { |
824 |
case B_SUB_DIRECT: |
||
825 |
if (!h->col_type_base[h->mbidx]) { |
||
826 |
/* intra MB at co-location, do in-plane prediction */ |
||
827 |
if(flags==0) { |
||
828 |
// if col-MB is a Intra MB, current Block size is 16x16. |
||
829 |
// AVS standard section 9.9.1 |
||
830 |
if(block>0){ |
||
831 |
h->mv[TMP_UNUSED_INX ] = h->mv[MV_FWD_X0 ]; |
||
832 |
h->mv[TMP_UNUSED_INX + MV_BWD_OFFS] = h->mv[MV_FWD_X0 + MV_BWD_OFFS]; |
||
833 |
} |
||
834 |
ff_cavs_mv(h, MV_FWD_X0, MV_FWD_C2, |
||
835 |
MV_PRED_BSKIP, BLK_8X8, 1); |
||
836 |
ff_cavs_mv(h, MV_FWD_X0+MV_BWD_OFFS, |
||
837 |
MV_FWD_C2+MV_BWD_OFFS, |
||
838 |
MV_PRED_BSKIP, BLK_8X8, 0); |
||
839 |
if(block>0) { |
||
840 |
flags = mv_scan[block]; |
||
841 |
h->mv[flags ] = h->mv[MV_FWD_X0 ]; |
||
842 |
h->mv[flags + MV_BWD_OFFS] = h->mv[MV_FWD_X0 + MV_BWD_OFFS]; |
||
843 |
h->mv[MV_FWD_X0 ] = h->mv[TMP_UNUSED_INX ]; |
||
844 |
h->mv[MV_FWD_X0 + MV_BWD_OFFS] = h->mv[TMP_UNUSED_INX + MV_BWD_OFFS]; |
||
845 |
} else |
||
846 |
flags = MV_FWD_X0; |
||
847 |
} else { |
||
848 |
h->mv[mv_scan[block] ] = h->mv[flags ]; |
||
849 |
h->mv[mv_scan[block] + MV_BWD_OFFS] = h->mv[flags + MV_BWD_OFFS]; |
||
850 |
} |
||
851 |
} else |
||
852 |
mv_pred_direct(h, &h->mv[mv_scan[block]], |
||
853 |
&h->col_mv[h->mbidx * 4 + block]); |
||
854 |
break; |
||
855 |
20044 |
case B_SUB_FWD: |
|
856 |
20044 |
ff_cavs_mv(h, mv_scan[block], mv_scan[block] - 3, |
|
857 |
MV_PRED_MEDIAN, BLK_8X8, 1); |
||
858 |
20044 |
break; |
|
859 |
16522 |
case B_SUB_SYM: |
|
860 |
16522 |
ff_cavs_mv(h, mv_scan[block], mv_scan[block] - 3, |
|
861 |
MV_PRED_MEDIAN, BLK_8X8, 1); |
||
862 |
16522 |
mv_pred_sym(h, &h->mv[mv_scan[block]], BLK_8X8); |
|
863 |
16522 |
break; |
|
864 |
} |
||
865 |
54864 |
} |
|
866 |
#undef TMP_UNUSED_INX |
||
867 |
✓✓ | 68580 |
for (block = 0; block < 4; block++) { |
868 |
✓✓ | 54864 |
if (sub_type[block] == B_SUB_BWD) |
869 |
18298 |
ff_cavs_mv(h, mv_scan[block] + MV_BWD_OFFS, |
|
870 |
18298 |
mv_scan[block] + MV_BWD_OFFS - 3, |
|
871 |
MV_PRED_MEDIAN, BLK_8X8, 0); |
||
872 |
} |
||
873 |
13716 |
break; |
|
874 |
14584 |
default: |
|
875 |
✗✓ | 14584 |
if (mb_type <= B_SYM_16X16) { |
876 |
av_log(h->avctx, AV_LOG_ERROR, "Invalid mb_type %d in B frame\n", mb_type); |
||
877 |
return AVERROR_INVALIDDATA; |
||
878 |
} |
||
879 |
av_assert2(mb_type < B_8X8); |
||
880 |
14584 |
flags = ff_cavs_partition_flags[mb_type]; |
|
881 |
✓✓ | 14584 |
if (mb_type & 1) { /* 16x8 macroblock types */ |
882 |
✓✓ | 7810 |
if (flags & FWD0) |
883 |
5218 |
ff_cavs_mv(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_TOP, BLK_16X8, 1); |
|
884 |
✓✓ | 7810 |
if (flags & SYM0) |
885 |
2134 |
mv_pred_sym(h, &h->mv[MV_FWD_X0], BLK_16X8); |
|
886 |
✓✓ | 7810 |
if (flags & FWD1) |
887 |
5320 |
ff_cavs_mv(h, MV_FWD_X2, MV_FWD_A1, MV_PRED_LEFT, BLK_16X8, 1); |
|
888 |
✓✓ | 7810 |
if (flags & SYM1) |
889 |
2490 |
mv_pred_sym(h, &h->mv[MV_FWD_X2], BLK_16X8); |
|
890 |
✓✓ | 7810 |
if (flags & BWD0) |
891 |
2592 |
ff_cavs_mv(h, MV_BWD_X0, MV_BWD_C2, MV_PRED_TOP, BLK_16X8, 0); |
|
892 |
✓✓ | 7810 |
if (flags & BWD1) |
893 |
2490 |
ff_cavs_mv(h, MV_BWD_X2, MV_BWD_A1, MV_PRED_LEFT, BLK_16X8, 0); |
|
894 |
} else { /* 8x16 macroblock types */ |
||
895 |
✓✓ | 6774 |
if (flags & FWD0) |
896 |
4531 |
ff_cavs_mv(h, MV_FWD_X0, MV_FWD_B3, MV_PRED_LEFT, BLK_8X16, 1); |
|
897 |
✓✓ | 6774 |
if (flags & SYM0) |
898 |
1972 |
mv_pred_sym(h, &h->mv[MV_FWD_X0], BLK_8X16); |
|
899 |
✓✓ | 6774 |
if (flags & FWD1) |
900 |
4491 |
ff_cavs_mv(h, MV_FWD_X1, MV_FWD_C2, MV_PRED_TOPRIGHT, BLK_8X16, 1); |
|
901 |
✓✓ | 6774 |
if (flags & SYM1) |
902 |
2012 |
mv_pred_sym(h, &h->mv[MV_FWD_X1], BLK_8X16); |
|
903 |
✓✓ | 6774 |
if (flags & BWD0) |
904 |
2243 |
ff_cavs_mv(h, MV_BWD_X0, MV_BWD_B3, MV_PRED_LEFT, BLK_8X16, 0); |
|
905 |
✓✓ | 6774 |
if (flags & BWD1) |
906 |
2283 |
ff_cavs_mv(h, MV_BWD_X1, MV_BWD_C2, MV_PRED_TOPRIGHT, BLK_8X16, 0); |
|
907 |
} |
||
908 |
} |
||
909 |
189383 |
ff_cavs_inter(h, mb_type); |
|
910 |
189383 |
set_intra_mode_default(h); |
|
911 |
✓✓ | 189383 |
if (mb_type != B_SKIP) |
912 |
82054 |
decode_residual_inter(h); |
|
913 |
189383 |
ff_cavs_filter(h, mb_type); |
|
914 |
|||
915 |
189383 |
return 0; |
|
916 |
} |
||
917 |
|||
918 |
/***************************************************************************** |
||
919 |
* |
||
920 |
* slice level |
||
921 |
* |
||
922 |
****************************************************************************/ |
||
923 |
|||
924 |
static inline int decode_slice_header(AVSContext *h, GetBitContext *gb) |
||
925 |
{ |
||
926 |
if (h->stc > 0xAF) |
||
927 |
av_log(h->avctx, AV_LOG_ERROR, "unexpected start code 0x%02x\n", h->stc); |
||
928 |
|||
929 |
if (h->stc >= h->mb_height) { |
||
930 |
av_log(h->avctx, AV_LOG_ERROR, "stc 0x%02x is too large\n", h->stc); |
||
931 |
return AVERROR_INVALIDDATA; |
||
932 |
} |
||
933 |
|||
934 |
h->mby = h->stc; |
||
935 |
h->mbidx = h->mby * h->mb_width; |
||
936 |
|||
937 |
/* mark top macroblocks as unavailable */ |
||
938 |
h->flags &= ~(B_AVAIL | C_AVAIL); |
||
939 |
if (!h->pic_qp_fixed) { |
||
940 |
h->qp_fixed = get_bits1(gb); |
||
941 |
h->qp = get_bits(gb, 6); |
||
942 |
} |
||
943 |
/* inter frame or second slice can have weighting params */ |
||
944 |
if ((h->cur.f->pict_type != AV_PICTURE_TYPE_I) || |
||
945 |
(!h->pic_structure && h->mby >= h->mb_width / 2)) |
||
946 |
if (get_bits1(gb)) { //slice_weighting_flag |
||
947 |
av_log(h->avctx, AV_LOG_ERROR, |
||
948 |
"weighted prediction not yet supported\n"); |
||
949 |
} |
||
950 |
return 0; |
||
951 |
} |
||
952 |
|||
953 |
297746 |
static inline int check_for_slice(AVSContext *h) |
|
954 |
{ |
||
955 |
297746 |
GetBitContext *gb = &h->gb; |
|
956 |
int align; |
||
957 |
|||
958 |
✓✓ | 297746 |
if (h->mbx) |
959 |
291129 |
return 0; |
|
960 |
6617 |
align = (-get_bits_count(gb)) & 7; |
|
961 |
/* check for stuffing byte */ |
||
962 |
✓✓✓✓ |
6617 |
if (!align && (show_bits(gb, 8) == 0x80)) |
963 |
3 |
align = 8; |
|
964 |
✗✓ | 6617 |
if ((show_bits_long(gb, 24 + align) & 0xFFFFFF) == 0x000001) { |
965 |
skip_bits_long(gb, 24 + align); |
||
966 |
h->stc = get_bits(gb, 8); |
||
967 |
if (h->stc >= h->mb_height) |
||
968 |
return 0; |
||
969 |
decode_slice_header(h, gb); |
||
970 |
return 1; |
||
971 |
} |
||
972 |
6617 |
return 0; |
|
973 |
} |
||
974 |
|||
975 |
/***************************************************************************** |
||
976 |
* |
||
977 |
* frame level |
||
978 |
* |
||
979 |
****************************************************************************/ |
||
980 |
|||
981 |
184 |
static int decode_pic(AVSContext *h) |
|
982 |
{ |
||
983 |
int ret; |
||
984 |
184 |
int skip_count = -1; |
|
985 |
enum cavs_mb mb_type; |
||
986 |
|||
987 |
✗✓ | 184 |
if (!h->top_qp) { |
988 |
av_log(h->avctx, AV_LOG_ERROR, "No sequence header decoded yet\n"); |
||
989 |
return AVERROR_INVALIDDATA; |
||
990 |
} |
||
991 |
|||
992 |
184 |
av_frame_unref(h->cur.f); |
|
993 |
|||
994 |
184 |
skip_bits(&h->gb, 16);//bbv_dwlay |
|
995 |
✓✓ | 184 |
if (h->stc == PIC_PB_START_CODE) { |
996 |
175 |
h->cur.f->pict_type = get_bits(&h->gb, 2) + AV_PICTURE_TYPE_I; |
|
997 |
✗✓ | 175 |
if (h->cur.f->pict_type > AV_PICTURE_TYPE_B) { |
998 |
av_log(h->avctx, AV_LOG_ERROR, "illegal picture type\n"); |
||
999 |
return AVERROR_INVALIDDATA; |
||
1000 |
} |
||
1001 |
/* make sure we have the reference frames we need */ |
||
1002 |
✓✗ | 175 |
if (!h->DPB[0].f->data[0] || |
1003 |
✓✓✗✓ |
175 |
(!h->DPB[1].f->data[0] && h->cur.f->pict_type == AV_PICTURE_TYPE_B)) |
1004 |
return AVERROR_INVALIDDATA; |
||
1005 |
} else { |
||
1006 |
9 |
h->cur.f->pict_type = AV_PICTURE_TYPE_I; |
|
1007 |
✗✓ | 9 |
if (get_bits1(&h->gb)) |
1008 |
skip_bits(&h->gb, 24);//time_code |
||
1009 |
/* old sample clips were all progressive and no low_delay, |
||
1010 |
bump stream revision if detected otherwise */ |
||
1011 |
✓✗✗✓ |
9 |
if (h->low_delay || !(show_bits(&h->gb, 9) & 1)) |
1012 |
h->stream_revision = 1; |
||
1013 |
/* similarly test top_field_first and repeat_first_field */ |
||
1014 |
✗✓ | 9 |
else if (show_bits(&h->gb, 11) & 3) |
1015 |
h->stream_revision = 1; |
||
1016 |
✗✓ | 9 |
if (h->stream_revision > 0) |
1017 |
skip_bits(&h->gb, 1); //marker_bit |
||
1018 |
} |
||
1019 |
|||
1020 |
184 |
ret = ff_get_buffer(h->avctx, h->cur.f, h->cur.f->pict_type == AV_PICTURE_TYPE_B ? |
|
1021 |
0 : AV_GET_BUFFER_FLAG_REF); |
||
1022 |
✗✓ | 184 |
if (ret < 0) |
1023 |
return ret; |
||
1024 |
|||
1025 |
✓✓ | 184 |
if (!h->edge_emu_buffer) { |
1026 |
4 |
int alloc_size = FFALIGN(FFABS(h->cur.f->linesize[0]) + 32, 32); |
|
1027 |
4 |
h->edge_emu_buffer = av_mallocz(alloc_size * 2 * 24); |
|
1028 |
✗✓ | 4 |
if (!h->edge_emu_buffer) |
1029 |
return AVERROR(ENOMEM); |
||
1030 |
} |
||
1031 |
|||
1032 |
✗✓ | 184 |
if ((ret = ff_cavs_init_pic(h)) < 0) |
1033 |
return ret; |
||
1034 |
184 |
h->cur.poc = get_bits(&h->gb, 8) * 2; |
|
1035 |
|||
1036 |
/* get temporal distances and MV scaling factors */ |
||
1037 |
✓✓ | 184 |
if (h->cur.f->pict_type != AV_PICTURE_TYPE_B) { |
1038 |
65 |
h->dist[0] = (h->cur.poc - h->DPB[0].poc) & 511; |
|
1039 |
} else { |
||
1040 |
119 |
h->dist[0] = (h->DPB[0].poc - h->cur.poc) & 511; |
|
1041 |
} |
||
1042 |
184 |
h->dist[1] = (h->cur.poc - h->DPB[1].poc) & 511; |
|
1043 |
✓✓ | 184 |
h->scale_den[0] = h->dist[0] ? 512/h->dist[0] : 0; |
1044 |
✓✓ | 184 |
h->scale_den[1] = h->dist[1] ? 512/h->dist[1] : 0; |
1045 |
✓✓ | 184 |
if (h->cur.f->pict_type == AV_PICTURE_TYPE_B) { |
1046 |
119 |
h->sym_factor = h->dist[0] * h->scale_den[1]; |
|
1047 |
✗✓ | 119 |
if (FFABS(h->sym_factor) > 32768) { |
1048 |
av_log(h->avctx, AV_LOG_ERROR, "sym_factor %d too large\n", h->sym_factor); |
||
1049 |
return AVERROR_INVALIDDATA; |
||
1050 |
} |
||
1051 |
} else { |
||
1052 |
✓✓ | 65 |
h->direct_den[0] = h->dist[0] ? 16384 / h->dist[0] : 0; |
1053 |
✓✓ | 65 |
h->direct_den[1] = h->dist[1] ? 16384 / h->dist[1] : 0; |
1054 |
} |
||
1055 |
|||
1056 |
✗✓ | 184 |
if (h->low_delay) |
1057 |
get_ue_golomb(&h->gb); //bbv_check_times |
||
1058 |
184 |
h->progressive = get_bits1(&h->gb); |
|
1059 |
184 |
h->pic_structure = 1; |
|
1060 |
✗✓ | 184 |
if (!h->progressive) |
1061 |
h->pic_structure = get_bits1(&h->gb); |
||
1062 |
✗✓✗✗ |
184 |
if (!h->pic_structure && h->stc == PIC_PB_START_CODE) |
1063 |
skip_bits1(&h->gb); //advanced_pred_mode_disable |
||
1064 |
184 |
skip_bits1(&h->gb); //top_field_first |
|
1065 |
184 |
skip_bits1(&h->gb); //repeat_first_field |
|
1066 |
184 |
h->pic_qp_fixed = |
|
1067 |
184 |
h->qp_fixed = get_bits1(&h->gb); |
|
1068 |
184 |
h->qp = get_bits(&h->gb, 6); |
|
1069 |
✓✓ | 184 |
if (h->cur.f->pict_type == AV_PICTURE_TYPE_I) { |
1070 |
✗✓✗✗ |
9 |
if (!h->progressive && !h->pic_structure) |
1071 |
skip_bits1(&h->gb);//what is this? |
||
1072 |
9 |
skip_bits(&h->gb, 4); //reserved bits |
|
1073 |
} else { |
||
1074 |
✓✓✗✓ |
175 |
if (!(h->cur.f->pict_type == AV_PICTURE_TYPE_B && h->pic_structure == 1)) |
1075 |
56 |
h->ref_flag = get_bits1(&h->gb); |
|
1076 |
175 |
skip_bits(&h->gb, 4); //reserved bits |
|
1077 |
175 |
h->skip_mode_flag = get_bits1(&h->gb); |
|
1078 |
} |
||
1079 |
184 |
h->loop_filter_disable = get_bits1(&h->gb); |
|
1080 |
✓✗✗✓ |
184 |
if (!h->loop_filter_disable && get_bits1(&h->gb)) { |
1081 |
h->alpha_offset = get_se_golomb(&h->gb); |
||
1082 |
h->beta_offset = get_se_golomb(&h->gb); |
||
1083 |
if ( h->alpha_offset < -64 || h->alpha_offset > 64 |
||
1084 |
|| h-> beta_offset < -64 || h-> beta_offset > 64) { |
||
1085 |
h->alpha_offset = h->beta_offset = 0; |
||
1086 |
return AVERROR_INVALIDDATA; |
||
1087 |
} |
||
1088 |
} else { |
||
1089 |
184 |
h->alpha_offset = h->beta_offset = 0; |
|
1090 |
} |
||
1091 |
|||
1092 |
184 |
ret = 0; |
|
1093 |
✓✓ | 184 |
if (h->cur.f->pict_type == AV_PICTURE_TYPE_I) { |
1094 |
do { |
||
1095 |
14580 |
check_for_slice(h); |
|
1096 |
14580 |
ret = decode_mb_i(h, 0); |
|
1097 |
✗✓ | 14580 |
if (ret < 0) |
1098 |
break; |
||
1099 |
✓✓ | 14580 |
} while (ff_cavs_next_mb(h)); |
1100 |
✓✓ | 175 |
} else if (h->cur.f->pict_type == AV_PICTURE_TYPE_P) { |
1101 |
do { |
||
1102 |
✗✓ | 90720 |
if (check_for_slice(h)) |
1103 |
skip_count = -1; |
||
1104 |
✓✗✓✓ |
90720 |
if (h->skip_mode_flag && (skip_count < 0)) { |
1105 |
✗✓ | 69924 |
if (get_bits_left(&h->gb) < 1) { |
1106 |
ret = AVERROR_INVALIDDATA; |
||
1107 |
break; |
||
1108 |
} |
||
1109 |
69924 |
skip_count = get_ue_golomb(&h->gb); |
|
1110 |
} |
||
1111 |
✓✗✓✓ |
90720 |
if (h->skip_mode_flag && skip_count--) { |
1112 |
20801 |
decode_mb_p(h, P_SKIP); |
|
1113 |
} else { |
||
1114 |
✗✓ | 69919 |
if (get_bits_left(&h->gb) < 1) { |
1115 |
ret = AVERROR_INVALIDDATA; |
||
1116 |
break; |
||
1117 |
} |
||
1118 |
69919 |
mb_type = get_ue_golomb(&h->gb) + P_SKIP + h->skip_mode_flag; |
|
1119 |
✓✓ | 69919 |
if (mb_type > P_8X8) |
1120 |
7702 |
ret = decode_mb_i(h, mb_type - P_8X8 - 1); |
|
1121 |
else |
||
1122 |
62217 |
decode_mb_p(h, mb_type); |
|
1123 |
} |
||
1124 |
✗✓ | 90720 |
if (ret < 0) |
1125 |
break; |
||
1126 |
✓✓ | 90720 |
} while (ff_cavs_next_mb(h)); |
1127 |
} else { /* AV_PICTURE_TYPE_B */ |
||
1128 |
do { |
||
1129 |
✗✓ | 192446 |
if (check_for_slice(h)) |
1130 |
skip_count = -1; |
||
1131 |
✓✗✓✓ |
192446 |
if (h->skip_mode_flag && (skip_count < 0)) { |
1132 |
✓✓ | 85154 |
if (get_bits_left(&h->gb) < 1) { |
1133 |
1 |
ret = AVERROR_INVALIDDATA; |
|
1134 |
1 |
break; |
|
1135 |
} |
||
1136 |
85153 |
skip_count = get_ue_golomb(&h->gb); |
|
1137 |
} |
||
1138 |
✓✗✓✓ |
192445 |
if (h->skip_mode_flag && skip_count--) { |
1139 |
107329 |
ret = decode_mb_b(h, B_SKIP); |
|
1140 |
} else { |
||
1141 |
✗✓ | 85116 |
if (get_bits_left(&h->gb) < 1) { |
1142 |
ret = AVERROR_INVALIDDATA; |
||
1143 |
break; |
||
1144 |
} |
||
1145 |
85116 |
mb_type = get_ue_golomb(&h->gb) + B_SKIP + h->skip_mode_flag; |
|
1146 |
✓✓ | 85116 |
if (mb_type > B_8X8) |
1147 |
3062 |
ret = decode_mb_i(h, mb_type - B_8X8 - 1); |
|
1148 |
else |
||
1149 |
82054 |
ret = decode_mb_b(h, mb_type); |
|
1150 |
} |
||
1151 |
✗✓ | 192445 |
if (ret < 0) |
1152 |
break; |
||
1153 |
✓✓ | 192445 |
} while (ff_cavs_next_mb(h)); |
1154 |
} |
||
1155 |
184 |
emms_c(); |
|
1156 |
✓✓✓✓ |
184 |
if (ret >= 0 && h->cur.f->pict_type != AV_PICTURE_TYPE_B) { |
1157 |
65 |
av_frame_unref(h->DPB[1].f); |
|
1158 |
65 |
FFSWAP(AVSFrame, h->cur, h->DPB[1]); |
|
1159 |
65 |
FFSWAP(AVSFrame, h->DPB[0], h->DPB[1]); |
|
1160 |
} |
||
1161 |
184 |
return ret; |
|
1162 |
} |
||
1163 |
|||
1164 |
/***************************************************************************** |
||
1165 |
* |
||
1166 |
* headers and interface |
||
1167 |
* |
||
1168 |
****************************************************************************/ |
||
1169 |
|||
1170 |
9 |
static int decode_seq_header(AVSContext *h) |
|
1171 |
{ |
||
1172 |
int frame_rate_code; |
||
1173 |
int width, height; |
||
1174 |
int ret; |
||
1175 |
|||
1176 |
9 |
h->profile = get_bits(&h->gb, 8); |
|
1177 |
9 |
h->level = get_bits(&h->gb, 8); |
|
1178 |
9 |
skip_bits1(&h->gb); //progressive sequence |
|
1179 |
|||
1180 |
9 |
width = get_bits(&h->gb, 14); |
|
1181 |
9 |
height = get_bits(&h->gb, 14); |
|
1182 |
✓✓✗✓ ✓✗✗✓ |
9 |
if ((h->width || h->height) && (h->width != width || h->height != height)) { |
1183 |
avpriv_report_missing_feature(h->avctx, |
||
1184 |
"Width/height changing in CAVS"); |
||
1185 |
return AVERROR_PATCHWELCOME; |
||
1186 |
} |
||
1187 |
✓✗✗✓ |
9 |
if (width <= 0 || height <= 0) { |
1188 |
av_log(h->avctx, AV_LOG_ERROR, "Dimensions invalid\n"); |
||
1189 |
return AVERROR_INVALIDDATA; |
||
1190 |
} |
||
1191 |
9 |
skip_bits(&h->gb, 2); //chroma format |
|
1192 |
9 |
skip_bits(&h->gb, 3); //sample_precision |
|
1193 |
9 |
h->aspect_ratio = get_bits(&h->gb, 4); |
|
1194 |
9 |
frame_rate_code = get_bits(&h->gb, 4); |
|
1195 |
✓✗✗✓ |
9 |
if (frame_rate_code == 0 || frame_rate_code > 13) { |
1196 |
av_log(h->avctx, AV_LOG_WARNING, |
||
1197 |
"frame_rate_code %d is invalid\n", frame_rate_code); |
||
1198 |
frame_rate_code = 1; |
||
1199 |
} |
||
1200 |
|||
1201 |
9 |
skip_bits(&h->gb, 18); //bit_rate_lower |
|
1202 |
9 |
skip_bits1(&h->gb); //marker_bit |
|
1203 |
9 |
skip_bits(&h->gb, 12); //bit_rate_upper |
|
1204 |
9 |
h->low_delay = get_bits1(&h->gb); |
|
1205 |
|||
1206 |
9 |
ret = ff_set_dimensions(h->avctx, width, height); |
|
1207 |
✗✓ | 9 |
if (ret < 0) |
1208 |
return ret; |
||
1209 |
|||
1210 |
9 |
h->width = width; |
|
1211 |
9 |
h->height = height; |
|
1212 |
9 |
h->mb_width = (h->width + 15) >> 4; |
|
1213 |
9 |
h->mb_height = (h->height + 15) >> 4; |
|
1214 |
9 |
h->avctx->framerate = ff_mpeg12_frame_rate_tab[frame_rate_code]; |
|
1215 |
✓✓ | 9 |
if (!h->top_qp) |
1216 |
4 |
return ff_cavs_init_top_lines(h); |
|
1217 |
5 |
return 0; |
|
1218 |
} |
||
1219 |
|||
1220 |
static void cavs_flush(AVCodecContext * avctx) |
||
1221 |
{ |
||
1222 |
AVSContext *h = avctx->priv_data; |
||
1223 |
h->got_keyframe = 0; |
||
1224 |
} |
||
1225 |
|||
1226 |
187 |
static int cavs_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, |
|
1227 |
AVPacket *avpkt) |
||
1228 |
{ |
||
1229 |
187 |
AVSContext *h = avctx->priv_data; |
|
1230 |
187 |
const uint8_t *buf = avpkt->data; |
|
1231 |
187 |
int buf_size = avpkt->size; |
|
1232 |
187 |
uint32_t stc = -1; |
|
1233 |
int input_size, ret; |
||
1234 |
const uint8_t *buf_end; |
||
1235 |
const uint8_t *buf_ptr; |
||
1236 |
187 |
int frame_start = 0; |
|
1237 |
|||
1238 |
✓✓ | 187 |
if (buf_size == 0) { |
1239 |
✓✗✓✓ |
3 |
if (!h->low_delay && h->DPB[0].f->data[0]) { |
1240 |
2 |
*got_frame = 1; |
|
1241 |
2 |
av_frame_move_ref(data, h->DPB[0].f); |
|
1242 |
} |
||
1243 |
3 |
return 0; |
|
1244 |
} |
||
1245 |
|||
1246 |
184 |
h->stc = 0; |
|
1247 |
|||
1248 |
184 |
buf_ptr = buf; |
|
1249 |
184 |
buf_end = buf + buf_size; |
|
1250 |
for(;;) { |
||
1251 |
385 |
buf_ptr = avpriv_find_start_code(buf_ptr, buf_end, &stc); |
|
1252 |
✓✓✗✓ |
385 |
if ((stc & 0xFFFFFE00) || buf_ptr == buf_end) { |
1253 |
✗✓ | 184 |
if (!h->stc) |
1254 |
av_log(h->avctx, AV_LOG_WARNING, "no frame decoded\n"); |
||
1255 |
184 |
return FFMAX(0, buf_ptr - buf); |
|
1256 |
} |
||
1257 |
201 |
input_size = (buf_end - buf_ptr) * 8; |
|
1258 |
✓✓✓✓ ✓✗ |
201 |
switch (stc) { |
1259 |
9 |
case CAVS_START_CODE: |
|
1260 |
9 |
init_get_bits(&h->gb, buf_ptr, input_size); |
|
1261 |
9 |
decode_seq_header(h); |
|
1262 |
9 |
break; |
|
1263 |
9 |
case PIC_I_START_CODE: |
|
1264 |
✓✓ | 9 |
if (!h->got_keyframe) { |
1265 |
4 |
av_frame_unref(h->DPB[0].f); |
|
1266 |
4 |
av_frame_unref(h->DPB[1].f); |
|
1267 |
4 |
h->got_keyframe = 1; |
|
1268 |
} |
||
1269 |
case PIC_PB_START_CODE: |
||
1270 |
✗✓ | 184 |
if (frame_start > 1) |
1271 |
return AVERROR_INVALIDDATA; |
||
1272 |
184 |
frame_start ++; |
|
1273 |
✗✓ | 184 |
if (*got_frame) |
1274 |
av_frame_unref(data); |
||
1275 |
184 |
*got_frame = 0; |
|
1276 |
✗✓ | 184 |
if (!h->got_keyframe) |
1277 |
break; |
||
1278 |
184 |
init_get_bits(&h->gb, buf_ptr, input_size); |
|
1279 |
184 |
h->stc = stc; |
|
1280 |
✓✓ | 184 |
if (decode_pic(h)) |
1281 |
1 |
break; |
|
1282 |
183 |
*got_frame = 1; |
|
1283 |
✓✓ | 183 |
if (h->cur.f->pict_type != AV_PICTURE_TYPE_B) { |
1284 |
✓✓ | 65 |
if (h->DPB[!h->low_delay].f->data[0]) { |
1285 |
✗✓ | 61 |
if ((ret = av_frame_ref(data, h->DPB[!h->low_delay].f)) < 0) |
1286 |
return ret; |
||
1287 |
} else { |
||
1288 |
4 |
*got_frame = 0; |
|
1289 |
} |
||
1290 |
} else { |
||
1291 |
118 |
av_frame_move_ref(data, h->cur.f); |
|
1292 |
} |
||
1293 |
183 |
break; |
|
1294 |
4 |
case EXT_START_CODE: |
|
1295 |
//mpeg_decode_extension(avctx, buf_ptr, input_size); |
||
1296 |
4 |
break; |
|
1297 |
4 |
case USER_START_CODE: |
|
1298 |
//mpeg_decode_user_data(avctx, buf_ptr, input_size); |
||
1299 |
4 |
break; |
|
1300 |
default: |
||
1301 |
if (stc <= SLICE_MAX_START_CODE) { |
||
1302 |
init_get_bits(&h->gb, buf_ptr, input_size); |
||
1303 |
decode_slice_header(h, &h->gb); |
||
1304 |
} |
||
1305 |
break; |
||
1306 |
} |
||
1307 |
} |
||
1308 |
} |
||
1309 |
|||
1310 |
AVCodec ff_cavs_decoder = { |
||
1311 |
.name = "cavs", |
||
1312 |
.long_name = NULL_IF_CONFIG_SMALL("Chinese AVS (Audio Video Standard) (AVS1-P2, JiZhun profile)"), |
||
1313 |
.type = AVMEDIA_TYPE_VIDEO, |
||
1314 |
.id = AV_CODEC_ID_CAVS, |
||
1315 |
.priv_data_size = sizeof(AVSContext), |
||
1316 |
.init = ff_cavs_init, |
||
1317 |
.close = ff_cavs_end, |
||
1318 |
.decode = cavs_decode_frame, |
||
1319 |
.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DELAY, |
||
1320 |
.flush = cavs_flush, |
||
1321 |
}; |
| Generated by: GCOVR (Version 4.2) |