FFmpeg
dynamic_hdr_vivid.c
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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;
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 
33  int size)
34 {
35  GetBitContext gbc, *gb = &gbc;
36  int ret;
37 
38  if (!s)
39  return AVERROR(ENOMEM);
40 
41  ret = init_get_bits8(gb, data, size);
42  if (ret < 0)
43  return ret;
44 
45  if (get_bits_left(gb) < 8)
46  return AVERROR_INVALIDDATA;
47 
48  s->system_start_code = get_bits(gb, 8);
49  if (s->system_start_code == 0x01) {
50  s->num_windows = 1;
51 
52  if (get_bits_left(gb) < 12 * 4 * s->num_windows)
53  return AVERROR_INVALIDDATA;
54  for (int w = 0; w < s->num_windows; w++) {
55  AVHDRVividColorTransformParams *params = &s->params[w];
56 
57  params->minimum_maxrgb = (AVRational){get_bits(gb, 12), maxrgb_den};
58  params->average_maxrgb = (AVRational){get_bits(gb, 12), maxrgb_den};
59  params->variance_maxrgb = (AVRational){get_bits(gb, 12), maxrgb_den};
60  params->maximum_maxrgb = (AVRational){get_bits(gb, 12), maxrgb_den};
61  }
62 
63  if (get_bits_left(gb) < 2 * s->num_windows)
64  return AVERROR_INVALIDDATA;
65  for (int w = 0; w < s->num_windows; w++) {
66  AVHDRVividColorTransformParams *params = &s->params[w];
67 
68  params->tone_mapping_mode_flag = get_bits(gb, 1);
69  if (params->tone_mapping_mode_flag) {
70  if (get_bits_left(gb) < 1 )
71  return AVERROR_INVALIDDATA;
72  params->tone_mapping_param_num = get_bits(gb, 1) + 1;
73  for (int i = 0; i < params->tone_mapping_param_num; i++) {
74  AVHDRVividColorToneMappingParams *tm_params = &params->tm_params[i];
75 
76  if (get_bits_left(gb) < 13)
77  return AVERROR_INVALIDDATA;
79  tm_params->base_enable_flag = get_bits(gb, 1);
80  if (tm_params->base_enable_flag) {
81  if (get_bits_left(gb) < (14 + 6 + 10 + 10 + 6 + 8 + 10))
82  return AVERROR_INVALIDDATA;
83  tm_params->base_param_m_p = (AVRational){get_bits(gb, 14), base_param_m_p_den};
84  tm_params->base_param_m_m = (AVRational){get_bits(gb, 6), base_param_m_m_den};
85  tm_params->base_param_m_a = (AVRational){get_bits(gb, 10), base_param_m_a_den};
86  tm_params->base_param_m_b = (AVRational){get_bits(gb, 10), base_param_m_b_den};
87  tm_params->base_param_m_n = (AVRational){get_bits(gb, 6), base_param_m_n_den};
88  tm_params->base_param_k1 = get_bits(gb, 2);
89  tm_params->base_param_k2 = get_bits(gb, 2);
90  tm_params->base_param_k3 = get_bits(gb, 4);
91  tm_params->base_param_Delta_enable_mode = get_bits(gb, 3);
92  if (tm_params->base_param_Delta_enable_mode == 2 || tm_params->base_param_Delta_enable_mode == 6)
93  tm_params->base_param_Delta = (AVRational){get_bits(gb, 7) * -1, base_param_Delta_den};
94  else
96 
97  if (get_bits_left(gb) < 1)
98  return AVERROR_INVALIDDATA;
99  tm_params->three_Spline_enable_flag = get_bits(gb, 1);
100  if (tm_params->three_Spline_enable_flag) {
101  if (get_bits_left(gb) < 1 + tm_params->three_Spline_num * (2 + 12 + 28 + 1))
102  return AVERROR_INVALIDDATA;
103  tm_params->three_Spline_num = get_bits(gb, 1) + 1;
104  for (int j = 0; j < tm_params->three_Spline_num; j++) {
105  tm_params->three_Spline_TH_mode = get_bits(gb, 2);
106  if (tm_params->three_Spline_TH_mode == 0 || tm_params->three_Spline_TH_mode == 2) {
107  if (get_bits_left(gb) < 8)
108  return AVERROR_INVALIDDATA;
109  tm_params->three_Spline_TH_enable_MB = (AVRational){get_bits(gb, 8), 255};
110  }
111  tm_params->three_Spline_TH_enable = (AVRational){get_bits(gb, 12), 4095};
112  tm_params->three_Spline_TH_Delta1 = (AVRational){get_bits(gb, 10), 1023};
113  tm_params->three_Spline_TH_Delta2 = (AVRational){get_bits(gb, 10), 1023};
114  tm_params->three_Spline_enable_Strength = (AVRational){get_bits(gb, 8), 255};
115  }
116  } else {
117  tm_params->three_Spline_num = 1;
118  tm_params->three_Spline_TH_mode = 0;
119  }
120 
121  }
122  }
123  }
124 
125  params->color_saturation_mapping_flag = get_bits(gb, 1);
126  if (params->color_saturation_mapping_flag) {
127  if (get_bits_left(gb) < 3 + params->color_saturation_num * 8)
128  return AVERROR_INVALIDDATA;
129 
130  params->color_saturation_num = get_bits(gb, 3);
131  for (int i = 0; i < params->color_saturation_num; i++) {
133  }
134  }
135  }
136  }
137 
138  return 0;
139 }
AVHDRVividColorTransformParams::maximum_maxrgb
AVRational maximum_maxrgb
Indicates the maximum brightness of the displayed content.
Definition: hdr_dynamic_vivid_metadata.h:199
AVHDRVividColorToneMappingParams::base_param_k2
int base_param_k2
indicates k2_0 in the base parameter, base_param_k2 <= 1: k2_0 = base_param_k2 base_param_k2 > 1: res...
Definition: hdr_dynamic_vivid_metadata.h:91
get_bits_left
static int get_bits_left(GetBitContext *gb)
Definition: get_bits.h:839
AVERROR
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
AVHDRVividColorToneMappingParams::base_param_Delta
AVRational base_param_Delta
base_param_Delta in the base parameter, in multiples of 1.0/127.
Definition: hdr_dynamic_vivid_metadata.h:111
AVHDRVividColorToneMappingParams::base_enable_flag
int base_enable_flag
This flag indicates that transfer the base paramter(for value of 1)
Definition: hdr_dynamic_vivid_metadata.h:42
AVHDRVividColorToneMappingParams::three_Spline_num
int three_Spline_num
The number of three Spline.
Definition: hdr_dynamic_vivid_metadata.h:123
AVHDRVividColorTransformParams::tone_mapping_param_num
int tone_mapping_param_num
The number of tone mapping param.
Definition: hdr_dynamic_vivid_metadata.h:211
color_saturation_gain_den
static const int32_t color_saturation_gain_den
Definition: dynamic_hdr_vivid.c:23
w
uint8_t w
Definition: llviddspenc.c:38
AVHDRVividColorTransformParams::variance_maxrgb
AVRational variance_maxrgb
Indicates the variance brightness of the displayed content.
Definition: hdr_dynamic_vivid_metadata.h:192
data
const char data[16]
Definition: mxf.c:146
AVHDRVividColorTransformParams::color_saturation_num
int color_saturation_num
The number of color saturation param.
Definition: hdr_dynamic_vivid_metadata.h:228
get_bits
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
Definition: get_bits.h:379
AVHDRVividColorToneMappingParams::three_Spline_enable_flag
int three_Spline_enable_flag
indicates 3Spline_enable_flag in the base parameter, This flag indicates that transfer three Spline o...
Definition: hdr_dynamic_vivid_metadata.h:117
AVHDRVividColorTransformParams::tm_params
AVHDRVividColorToneMappingParams tm_params[2]
The color tone mapping parameters.
Definition: hdr_dynamic_vivid_metadata.h:216
GetBitContext
Definition: get_bits.h:61
base_param_m_a_den
static const int32_t base_param_m_a_den
Definition: dynamic_hdr_vivid.c:27
base_param_m_m_den
static const int32_t base_param_m_m_den
Definition: dynamic_hdr_vivid.c:26
init_get_bits8
static int init_get_bits8(GetBitContext *s, const uint8_t *buffer, int byte_size)
Initialize GetBitContext.
Definition: get_bits.h:667
s
#define s(width, name)
Definition: cbs_vp9.c:256
get_bits.h
AVHDRVividColorTransformParams::color_saturation_gain
AVRational color_saturation_gain[8]
Indicates the color correction strength parameter.
Definition: hdr_dynamic_vivid_metadata.h:235
AVHDRVividColorToneMappingParams::three_Spline_TH_enable_MB
AVRational three_Spline_TH_enable_MB
three_Spline_TH_enable_MB is in the range of 0.0 to 1.0, inclusive and in multiples of 1....
Definition: hdr_dynamic_vivid_metadata.h:136
AVRational
Rational number (pair of numerator and denominator).
Definition: rational.h:58
AVDynamicHDRVivid
This struct represents dynamic metadata for color volume transform - CUVA 005.1:2021 standard.
Definition: hdr_dynamic_vivid_metadata.h:249
AVHDRVividColorTransformParams::color_saturation_mapping_flag
int color_saturation_mapping_flag
This flag indicates that the metadata for the color saturation mapping in the processing window is pr...
Definition: hdr_dynamic_vivid_metadata.h:222
AVHDRVividColorTransformParams::tone_mapping_mode_flag
int tone_mapping_mode_flag
This flag indicates that the metadata for the tone mapping function in the processing window is prese...
Definition: hdr_dynamic_vivid_metadata.h:205
base_param_m_n_den
static const int32_t base_param_m_n_den
Definition: dynamic_hdr_vivid.c:29
AVHDRVividColorToneMappingParams::three_Spline_TH_enable
AVRational three_Spline_TH_enable
3Spline_TH_enable of three Spline.
Definition: hdr_dynamic_vivid_metadata.h:143
AVHDRVividColorToneMappingParams::three_Spline_enable_Strength
AVRational three_Spline_enable_Strength
3Spline_enable_Strength of three Spline.
Definition: hdr_dynamic_vivid_metadata.h:164
size
int size
Definition: twinvq_data.h:10344
AVHDRVividColorTransformParams::average_maxrgb
AVRational average_maxrgb
Indicates the average brightness of the displayed content.
Definition: hdr_dynamic_vivid_metadata.h:185
AVHDRVividColorToneMappingParams::base_param_k1
int base_param_k1
indicates k1_0 in the base parameter, base_param_k1 <= 1: k1_0 = base_param_k1 base_param_k1 > 1: res...
Definition: hdr_dynamic_vivid_metadata.h:84
base_param_m_b_den
static const int32_t base_param_m_b_den
Definition: dynamic_hdr_vivid.c:28
ff_parse_itu_t_t35_to_dynamic_hdr_vivid
int ff_parse_itu_t_t35_to_dynamic_hdr_vivid(AVDynamicHDRVivid *s, const uint8_t *data, int size)
Parse the user data registered ITU-T T.35 to AVbuffer (AVDynamicHDRVivid).
Definition: dynamic_hdr_vivid.c:32
maxrgb_den
static const int32_t maxrgb_den
Definition: dynamic_hdr_vivid.c:22
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
AVHDRVividColorToneMappingParams::targeted_system_display_maximum_luminance
AVRational targeted_system_display_maximum_luminance
The nominal maximum display luminance of the targeted system display, in multiples of 1....
Definition: hdr_dynamic_vivid_metadata.h:37
AVHDRVividColorTransformParams
Color transform parameters at a processing window in a dynamic metadata for CUVA 005....
Definition: hdr_dynamic_vivid_metadata.h:172
AVHDRVividColorToneMappingParams::base_param_Delta_enable_mode
int base_param_Delta_enable_mode
This flag indicates that delta mode of base paramter(for value of 1)
Definition: hdr_dynamic_vivid_metadata.h:104
maximum_luminance_den
static const int32_t maximum_luminance_den
Definition: dynamic_hdr_vivid.c:24
ret
ret
Definition: filter_design.txt:187
AVHDRVividColorToneMappingParams::three_Spline_TH_mode
int three_Spline_TH_mode
The mode of three Spline.
Definition: hdr_dynamic_vivid_metadata.h:129
AVHDRVividColorTransformParams::minimum_maxrgb
AVRational minimum_maxrgb
Indicates the minimum brightness of the displayed content.
Definition: hdr_dynamic_vivid_metadata.h:178
AVHDRVividColorToneMappingParams::base_param_m_n
AVRational base_param_m_n
base_param_m_n in the base parameter, in multiples of 1.0/10.
Definition: hdr_dynamic_vivid_metadata.h:77
AVHDRVividColorToneMappingParams::base_param_m_a
AVRational base_param_m_a
base_param_m_a in the base parameter, in multiples of 1.0/1023.
Definition: hdr_dynamic_vivid_metadata.h:63
AVHDRVividColorToneMappingParams::three_Spline_TH_Delta1
AVRational three_Spline_TH_Delta1
3Spline_TH_Delta1 of three Spline.
Definition: hdr_dynamic_vivid_metadata.h:150
AVHDRVividColorToneMappingParams
Color tone mapping parameters at a processing window in a dynamic metadata for CUVA 005....
Definition: hdr_dynamic_vivid_metadata.h:31
base_param_Delta_den
static const int32_t base_param_Delta_den
Definition: dynamic_hdr_vivid.c:30
dynamic_hdr_vivid.h
base_param_m_p_den
static const int32_t base_param_m_p_den
Definition: dynamic_hdr_vivid.c:25
int32_t
int32_t
Definition: audioconvert.c:56
AVERROR_INVALIDDATA
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:61
AVHDRVividColorToneMappingParams::base_param_k3
int base_param_k3
indicates k3_0 in the base parameter, base_param_k3 == 1: k3_0 = base_param_k3 base_param_k3 == 2: k3...
Definition: hdr_dynamic_vivid_metadata.h:99
AVHDRVividColorToneMappingParams::three_Spline_TH_Delta2
AVRational three_Spline_TH_Delta2
3Spline_TH_Delta2 of three Spline.
Definition: hdr_dynamic_vivid_metadata.h:157
AVHDRVividColorToneMappingParams::base_param_m_p
AVRational base_param_m_p
base_param_m_p in the base parameter, in multiples of 1.0/16383.
Definition: hdr_dynamic_vivid_metadata.h:49
AVHDRVividColorToneMappingParams::base_param_m_b
AVRational base_param_m_b
base_param_m_b in the base parameter, in multiples of 1/1023.
Definition: hdr_dynamic_vivid_metadata.h:70
AVHDRVividColorToneMappingParams::base_param_m_m
AVRational base_param_m_m
base_param_m_m in the base parameter, in multiples of 1.0/10.
Definition: hdr_dynamic_vivid_metadata.h:56