/src/ffmpeg/libavcodec/dynamic_hdr_vivid.c
Line | Count | Source (jump to first uncovered line) |
1 | | /* |
2 | | * This file is part of FFmpeg. |
3 | | * |
4 | | * FFmpeg is free software; you can redistribute it and/or |
5 | | * modify it under the terms of the GNU Lesser General Public |
6 | | * License as published by the Free Software Foundation; either |
7 | | * version 2.1 of the License, or (at your option) any later version. |
8 | | * |
9 | | * FFmpeg is distributed in the hope that it will be useful, |
10 | | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | | * Lesser General Public License for more details. |
13 | | * |
14 | | * You should have received a copy of the GNU Lesser General Public |
15 | | * License along with FFmpeg; if not, write to the Free Software |
16 | | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
17 | | */ |
18 | | |
19 | | #include "dynamic_hdr_vivid.h" |
20 | | #include "get_bits.h" |
21 | | |
22 | | static const int32_t maxrgb_den = 4095; |
23 | | static const int32_t color_saturation_gain_den = 128; |
24 | | static const int32_t maximum_luminance_den = 4095; |
25 | | static const int32_t base_param_m_p_den = 16383; |
26 | | static const int32_t base_param_m_m_den = 10; |
27 | | static const int32_t base_param_m_a_den = 1023; |
28 | | static const int32_t base_param_m_b_den = 1023; |
29 | | static const int32_t base_param_m_n_den = 10; |
30 | | static const int32_t base_param_Delta_den = 127; |
31 | | |
32 | | int ff_parse_itu_t_t35_to_dynamic_hdr_vivid(AVDynamicHDRVivid *s, const uint8_t *data, |
33 | | int size) |
34 | 5.52k | { |
35 | 5.52k | GetBitContext gbc, *gb = &gbc; |
36 | 5.52k | int ret; |
37 | | |
38 | 5.52k | if (!s) |
39 | 0 | return AVERROR(ENOMEM); |
40 | | |
41 | 5.52k | ret = init_get_bits8(gb, data, size); |
42 | 5.52k | if (ret < 0) |
43 | 0 | return ret; |
44 | | |
45 | 5.52k | if (get_bits_left(gb) < 8) |
46 | 3 | return AVERROR_INVALIDDATA; |
47 | | |
48 | 5.52k | s->system_start_code = get_bits(gb, 8); |
49 | | // T/UWA 005.1-2022, table 11 |
50 | 5.52k | if (s->system_start_code >= 0x01 && s->system_start_code <= 0x07) { |
51 | 4.84k | s->num_windows = 1; |
52 | | |
53 | 4.84k | if (get_bits_left(gb) < 12 * 4 * s->num_windows) |
54 | 6 | return AVERROR_INVALIDDATA; |
55 | 9.66k | for (int w = 0; w < s->num_windows; w++) { |
56 | 4.83k | AVHDRVividColorTransformParams *params = &s->params[w]; |
57 | | |
58 | 4.83k | params->minimum_maxrgb = (AVRational){get_bits(gb, 12), maxrgb_den}; |
59 | 4.83k | params->average_maxrgb = (AVRational){get_bits(gb, 12), maxrgb_den}; |
60 | 4.83k | params->variance_maxrgb = (AVRational){get_bits(gb, 12), maxrgb_den}; |
61 | 4.83k | params->maximum_maxrgb = (AVRational){get_bits(gb, 12), maxrgb_den}; |
62 | 4.83k | } |
63 | | |
64 | 4.83k | if (get_bits_left(gb) < 2 * s->num_windows) |
65 | 45 | return AVERROR_INVALIDDATA; |
66 | 6.63k | for (int w = 0; w < s->num_windows; w++) { |
67 | 4.78k | AVHDRVividColorTransformParams *params = &s->params[w]; |
68 | | |
69 | 4.78k | params->tone_mapping_mode_flag = get_bits(gb, 1); |
70 | 4.78k | if (params->tone_mapping_mode_flag) { |
71 | 4.08k | if (get_bits_left(gb) < 1 ) |
72 | 0 | return AVERROR_INVALIDDATA; |
73 | 4.08k | params->tone_mapping_param_num = get_bits(gb, 1) + 1; |
74 | 10.1k | for (int i = 0; i < params->tone_mapping_param_num; i++) { |
75 | 7.25k | AVHDRVividColorToneMappingParams *tm_params = ¶ms->tm_params[i]; |
76 | | |
77 | 7.25k | if (get_bits_left(gb) < 13) |
78 | 61 | return AVERROR_INVALIDDATA; |
79 | 7.19k | tm_params->targeted_system_display_maximum_luminance = (AVRational){get_bits(gb, 12), maximum_luminance_den}; |
80 | 7.19k | tm_params->base_enable_flag = get_bits(gb, 1); |
81 | 7.19k | if (tm_params->base_enable_flag) { |
82 | 2.91k | if (get_bits_left(gb) < (14 + 6 + 10 + 10 + 6 + 8 + 10)) |
83 | 698 | return AVERROR_INVALIDDATA; |
84 | 2.21k | tm_params->base_param_m_p = (AVRational){get_bits(gb, 14), base_param_m_p_den}; |
85 | 2.21k | tm_params->base_param_m_m = (AVRational){get_bits(gb, 6), base_param_m_m_den}; |
86 | 2.21k | tm_params->base_param_m_a = (AVRational){get_bits(gb, 10), base_param_m_a_den}; |
87 | 2.21k | tm_params->base_param_m_b = (AVRational){get_bits(gb, 10), base_param_m_b_den}; |
88 | 2.21k | tm_params->base_param_m_n = (AVRational){get_bits(gb, 6), base_param_m_n_den}; |
89 | 2.21k | tm_params->base_param_k1 = get_bits(gb, 2); |
90 | 2.21k | tm_params->base_param_k2 = get_bits(gb, 2); |
91 | 2.21k | tm_params->base_param_k3 = get_bits(gb, 4); |
92 | 2.21k | tm_params->base_param_Delta_enable_mode = get_bits(gb, 3); |
93 | 2.21k | tm_params->base_param_Delta = (AVRational){get_bits(gb, 7), base_param_Delta_den}; |
94 | 2.21k | } |
95 | 6.49k | if (get_bits_left(gb) < 1) |
96 | 310 | return AVERROR_INVALIDDATA; |
97 | 6.18k | tm_params->three_Spline_enable_flag = get_bits(gb, 1); |
98 | 6.18k | if (tm_params->three_Spline_enable_flag) { |
99 | 4.97k | AVHDRVivid3SplineParams *three_spline; |
100 | | |
101 | 4.97k | if (get_bits_left(gb) < 1 + tm_params->three_Spline_num * (2 + 12 + 28 + 1)) |
102 | 7 | return AVERROR_INVALIDDATA; |
103 | 4.97k | tm_params->three_Spline_num = get_bits(gb, 1) + 1; |
104 | 4.97k | if (tm_params->three_Spline_num > FF_ARRAY_ELEMS(tm_params->three_spline)) |
105 | 0 | return AVERROR_INVALIDDATA; |
106 | 13.5k | for (int j = 0; j < tm_params->three_Spline_num; j++) { |
107 | 8.69k | three_spline = &tm_params->three_spline[j]; |
108 | 8.69k | three_spline->th_mode = get_bits(gb, 2); |
109 | 8.69k | if (three_spline->th_mode == 0 || three_spline->th_mode == 2) { |
110 | 2.88k | if (get_bits_left(gb) < 8) |
111 | 79 | return AVERROR_INVALIDDATA; |
112 | 2.80k | three_spline->th_enable_mb = (AVRational){get_bits(gb, 8), 255}; |
113 | 2.80k | } |
114 | 8.61k | three_spline->th_enable = (AVRational){get_bits(gb, 12), 4095}; |
115 | 8.61k | three_spline->th_delta1 = (AVRational){get_bits(gb, 10), 1023}; |
116 | 8.61k | three_spline->th_delta2 = (AVRational){get_bits(gb, 10), 1023}; |
117 | 8.61k | three_spline->enable_strength = (AVRational){get_bits(gb, 8), 255}; |
118 | 8.61k | } |
119 | 4.89k | #if FF_API_HDR_VIVID_THREE_SPLINE |
120 | 4.89k | three_spline = &tm_params->three_spline[0]; |
121 | 4.89k | FF_DISABLE_DEPRECATION_WARNINGS |
122 | 4.89k | tm_params->three_Spline_TH_mode = three_spline->th_mode; |
123 | 4.89k | tm_params->three_Spline_TH_enable_MB = three_spline->th_enable_mb; |
124 | 4.89k | tm_params->three_Spline_TH_enable = three_spline->th_enable; |
125 | 4.89k | tm_params->three_Spline_TH_Delta1 = three_spline->th_delta1; |
126 | 4.89k | tm_params->three_Spline_TH_Delta2 = three_spline->th_delta2; |
127 | 4.89k | tm_params->three_Spline_enable_Strength = three_spline->enable_strength; |
128 | 4.89k | FF_ENABLE_DEPRECATION_WARNINGS |
129 | 4.89k | #endif |
130 | 4.89k | } |
131 | 6.18k | } |
132 | 4.08k | } |
133 | | |
134 | 3.63k | params->color_saturation_mapping_flag = get_bits(gb, 1); |
135 | 3.63k | if (params->color_saturation_mapping_flag) { |
136 | 3.39k | if (get_bits_left(gb) < 3 + params->color_saturation_num * 8) |
137 | 1.79k | return AVERROR_INVALIDDATA; |
138 | | |
139 | 1.59k | params->color_saturation_num = get_bits(gb, 3); |
140 | 8.45k | for (int i = 0; i < params->color_saturation_num; i++) { |
141 | 6.85k | params->color_saturation_gain[i] = (AVRational){get_bits(gb, 8), color_saturation_gain_den}; |
142 | 6.85k | } |
143 | 1.59k | } |
144 | 3.63k | } |
145 | 4.78k | } |
146 | | |
147 | 2.52k | return 0; |
148 | 5.52k | } |