aboutsummaryrefslogtreecommitdiffstats
path: root/libavutil/hdr_dynamic_vivid_metadata.h
blob: a34f83072cb05e8ead50df4073bcde5575c27519 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
/*
 * Copyright (c) 2021 Limin Wang <lance.lmwang at gmail.com>
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#ifndef AVUTIL_HDR_DYNAMIC_VIVID_METADATA_H
#define AVUTIL_HDR_DYNAMIC_VIVID_METADATA_H

#include "frame.h"
#include "rational.h"

/**
 * Color tone mapping parameters at a processing window in a dynamic metadata for
 * CUVA 005.1:2021.
 */
typedef struct AVHDRVividColorToneMappingParams {
    /**
     * The nominal maximum display luminance of the targeted system display,
     * in multiples of 1.0/4095 candelas per square metre. The value shall be in
     * the range of 0.0 to 1.0, inclusive.
     */
    AVRational targeted_system_display_maximum_luminance;

    /**
     * This flag indicates that transfer the base paramter(for value of 1)
     */
    int base_enable_flag;

    /**
     * base_param_m_p in the base parameter,
     * in multiples of 1.0/16383. The value shall be in
     * the range of 0.0 to 1.0, inclusive.
     */
    AVRational base_param_m_p;

    /**
     * base_param_m_m in the base parameter,
     * in multiples of 1.0/10. The value shall be in
     * the range of 0.0 to 6.3, inclusive.
     */
    AVRational base_param_m_m;

    /**
     * base_param_m_a in the base parameter,
     * in multiples of 1.0/1023. The value shall be in
     * the range of 0.0 to 1.0 inclusive.
     */
    AVRational base_param_m_a;

    /**
     * base_param_m_b in the base parameter,
     * in multiples of 1/1023. The value shall be in
     * the range of 0.0 to 1.0, inclusive.
     */
    AVRational base_param_m_b;

    /**
     * base_param_m_n in the base parameter,
     * in multiples of 1.0/10. The value shall be in
     * the range of 0.0 to 6.3, inclusive.
     */
    AVRational base_param_m_n;

    /**
     * indicates k1_0 in the base parameter,
     * base_param_k1 <= 1: k1_0 = base_param_k1
     * base_param_k1 > 1: reserved
     */
    int base_param_k1;

    /**
     * indicates k2_0 in the base parameter,
     * base_param_k2 <= 1: k2_0 = base_param_k2
     * base_param_k2 > 1: reserved
     */
    int base_param_k2;

    /**
     * indicates k3_0 in the base parameter,
     * base_param_k3 == 1: k3_0 = base_param_k3
     * base_param_k3 == 2: k3_0 = maximum_maxrgb
     * base_param_k3 > 2: reserved
     */
    int base_param_k3;

    /**
     * This flag indicates that delta mode of base paramter(for value of 1)
     */
    int base_param_Delta_enable_mode;

    /**
     * base_param_Delta in the base parameter,
     * in multiples of 1.0/127. The value shall be in
     * the range of 0.0 to 1.0, inclusive.
     */
    AVRational base_param_Delta;

    /**
     * indicates 3Spline_enable_flag in the base parameter,
     * This flag indicates that transfer three Spline of base paramter(for value of 1)
     */
    int three_Spline_enable_flag;

    /**
     * The number of three Spline. The value shall be in the range
     * of 1 to 2, inclusive.
     */
    int three_Spline_num;

    /**
     * The mode of three Spline. the value shall be in the range
     * of 0 to 3, inclusive.
     */
    int three_Spline_TH_mode;

    /**
     * three_Spline_TH_enable_MB is in the range of 0.0 to 1.0, inclusive
     * and in multiples of 1.0/255.
     *
     */
    AVRational three_Spline_TH_enable_MB;

    /**
     * 3Spline_TH_enable of three Spline.
     * The value shall be in the range of 0.0 to 1.0, inclusive.
     * and in multiples of 1.0/4095.
     */
    AVRational three_Spline_TH_enable;

    /**
     * 3Spline_TH_Delta1 of three Spline.
     * The value shall be in the range of 0.0 to 0.25, inclusive,
     * and in multiples of 0.25/1023.
     */
    AVRational three_Spline_TH_Delta1;

    /**
     * 3Spline_TH_Delta2 of three Spline.
     * The value shall be in the range of 0.0 to 0.25, inclusive,
     * and in multiples of 0.25/1023.
     */
    AVRational three_Spline_TH_Delta2;

    /**
     * 3Spline_enable_Strength of three Spline.
     * The value shall be in the range of 0.0 to 1.0, inclusive,
     * and in multiples of 1.0/255.
     */
    AVRational three_Spline_enable_Strength;
} AVHDRVividColorToneMappingParams;


/**
 * Color transform parameters at a processing window in a dynamic metadata for
 * CUVA 005.1:2021.
 */
typedef struct AVHDRVividColorTransformParams {
    /**
     * Indicates the minimum brightness of the displayed content.
     * The values should be in the range of 0.0 to 1.0,
     * inclusive and in multiples of 1/4095.
     */
    AVRational minimum_maxrgb;

    /**
     * Indicates the average brightness of the displayed content.
     * The values should be in the range of 0.0 to 1.0,
     * inclusive and in multiples of 1/4095.
     */
    AVRational average_maxrgb;

    /**
     * Indicates the variance brightness of the displayed content.
     * The values should be in the range of 0.0 to 1.0,
     * inclusive and in multiples of 1/4095.
     */
    AVRational variance_maxrgb;

    /**
     * Indicates the maximum brightness of the displayed content.
     * The values should be in the range of 0.0 to 1.0, inclusive
     * and in multiples of 1/4095.
     */
    AVRational maximum_maxrgb;

    /**
     * This flag indicates that the metadata for the tone mapping function in
     * the processing window is present (for value of 1).
     */
    int tone_mapping_mode_flag;

    /**
     * The number of tone mapping param. The value shall be in the range
     * of 1 to 2, inclusive.
     */
    int tone_mapping_param_num;

    /**
     * The color tone mapping parameters.
     */
    AVHDRVividColorToneMappingParams tm_params[2];

    /**
     * This flag indicates that the metadata for the color saturation mapping in
     * the processing window is present (for value of 1).
     */
    int color_saturation_mapping_flag;

    /**
     * The number of color saturation param. The value shall be in the range
     * of 0 to 7, inclusive.
     */
    int color_saturation_num;

    /**
     * Indicates the color correction strength parameter.
     * The values should be in the range of 0.0 to 2.0, inclusive
     * and in multiples of 1/128.
     */
    AVRational color_saturation_gain[8];
} AVHDRVividColorTransformParams;

/**
 * This struct represents dynamic metadata for color volume transform -
 * CUVA 005.1:2021 standard
 *
 * To be used as payload of a AVFrameSideData or AVPacketSideData with the
 * appropriate type.
 *
 * @note The struct should be allocated with
 * av_dynamic_hdr_vivid_alloc() and its size is not a part of
 * the public ABI.
 */
typedef struct AVDynamicHDRVivid {
    /**
     * The system start code. The value shall be set to 0x01.
     */
    uint8_t system_start_code;

    /**
     * The number of processing windows. The value shall be set to 0x01
     * if the system_start_code is 0x01.
     */
    uint8_t num_windows;

    /**
     * The color transform parameters for every processing window.
     */
    AVHDRVividColorTransformParams params[3];
} AVDynamicHDRVivid;

/**
 * Allocate an AVDynamicHDRVivid structure and set its fields to
 * default values. The resulting struct can be freed using av_freep().
 *
 * @return An AVDynamicHDRVivid filled with default values or NULL
 *         on failure.
 */
AVDynamicHDRVivid *av_dynamic_hdr_vivid_alloc(size_t *size);

/**
 * Allocate a complete AVDynamicHDRVivid and add it to the frame.
 * @param frame The frame which side data is added to.
 *
 * @return The AVDynamicHDRVivid structure to be filled by caller or NULL
 *         on failure.
 */
AVDynamicHDRVivid *av_dynamic_hdr_vivid_create_side_data(AVFrame *frame);

#endif /* AVUTIL_HDR_DYNAMIC_VIVID_METADATA_H */