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286 lines
8.2 KiB
C
286 lines
8.2 KiB
C
/*
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* Copyright (c) 2021 Limin Wang <lance.lmwang at gmail.com>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVUTIL_HDR_DYNAMIC_VIVID_METADATA_H
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#define AVUTIL_HDR_DYNAMIC_VIVID_METADATA_H
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#include "frame.h"
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#include "rational.h"
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/**
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* Color tone mapping parameters at a processing window in a dynamic metadata for
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* CUVA 005.1:2021.
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*/
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typedef struct AVHDRVividColorToneMappingParams {
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/**
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* The nominal maximum display luminance of the targeted system display,
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* in multiples of 1.0/4095 candelas per square metre. The value shall be in
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* the range of 0.0 to 1.0, inclusive.
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*/
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AVRational targeted_system_display_maximum_luminance;
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/**
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* This flag indicates that transfer the base paramter(for value of 1)
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*/
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int base_enable_flag;
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/**
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* base_param_m_p in the base parameter,
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* in multiples of 1.0/16383. The value shall be in
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* the range of 0.0 to 1.0, inclusive.
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*/
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AVRational base_param_m_p;
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/**
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* base_param_m_m in the base parameter,
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* in multiples of 1.0/10. The value shall be in
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* the range of 0.0 to 6.3, inclusive.
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*/
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AVRational base_param_m_m;
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/**
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* base_param_m_a in the base parameter,
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* in multiples of 1.0/1023. The value shall be in
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* the range of 0.0 to 1.0 inclusive.
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*/
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AVRational base_param_m_a;
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/**
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* base_param_m_b in the base parameter,
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* in multiples of 1/1023. The value shall be in
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* the range of 0.0 to 1.0, inclusive.
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*/
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AVRational base_param_m_b;
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/**
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* base_param_m_n in the base parameter,
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* in multiples of 1.0/10. The value shall be in
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* the range of 0.0 to 6.3, inclusive.
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*/
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AVRational base_param_m_n;
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/**
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* indicates k1_0 in the base parameter,
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* base_param_k1 <= 1: k1_0 = base_param_k1
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* base_param_k1 > 1: reserved
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*/
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int base_param_k1;
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/**
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* indicates k2_0 in the base parameter,
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* base_param_k2 <= 1: k2_0 = base_param_k2
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* base_param_k2 > 1: reserved
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*/
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int base_param_k2;
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/**
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* indicates k3_0 in the base parameter,
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* base_param_k3 == 1: k3_0 = base_param_k3
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* base_param_k3 == 2: k3_0 = maximum_maxrgb
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* base_param_k3 > 2: reserved
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*/
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int base_param_k3;
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/**
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* This flag indicates that delta mode of base paramter(for value of 1)
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*/
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int base_param_Delta_enable_mode;
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/**
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* base_param_Delta in the base parameter,
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* in multiples of 1.0/127. The value shall be in
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* the range of 0.0 to 1.0, inclusive.
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*/
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AVRational base_param_Delta;
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/**
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* indicates 3Spline_enable_flag in the base parameter,
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* This flag indicates that transfer three Spline of base paramter(for value of 1)
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*/
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int three_Spline_enable_flag;
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/**
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* The number of three Spline. The value shall be in the range
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* of 1 to 2, inclusive.
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*/
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int three_Spline_num;
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/**
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* The mode of three Spline. the value shall be in the range
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* of 0 to 3, inclusive.
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*/
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int three_Spline_TH_mode;
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/**
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* three_Spline_TH_enable_MB is in the range of 0.0 to 1.0, inclusive
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* and in multiples of 1.0/255.
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*
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*/
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AVRational three_Spline_TH_enable_MB;
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/**
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* 3Spline_TH_enable of three Spline.
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* The value shall be in the range of 0.0 to 1.0, inclusive.
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* and in multiples of 1.0/4095.
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*/
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AVRational three_Spline_TH_enable;
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/**
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* 3Spline_TH_Delta1 of three Spline.
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* The value shall be in the range of 0.0 to 0.25, inclusive,
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* and in multiples of 0.25/1023.
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*/
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AVRational three_Spline_TH_Delta1;
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/**
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* 3Spline_TH_Delta2 of three Spline.
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* The value shall be in the range of 0.0 to 0.25, inclusive,
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* and in multiples of 0.25/1023.
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*/
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AVRational three_Spline_TH_Delta2;
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/**
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* 3Spline_enable_Strength of three Spline.
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* The value shall be in the range of 0.0 to 1.0, inclusive,
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* and in multiples of 1.0/255.
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*/
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AVRational three_Spline_enable_Strength;
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} AVHDRVividColorToneMappingParams;
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/**
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* Color transform parameters at a processing window in a dynamic metadata for
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* CUVA 005.1:2021.
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*/
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typedef struct AVHDRVividColorTransformParams {
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/**
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* Indicates the minimum brightness of the displayed content.
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* The values should be in the range of 0.0 to 1.0,
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* inclusive and in multiples of 1/4095.
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*/
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AVRational minimum_maxrgb;
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/**
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* Indicates the average brightness of the displayed content.
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* The values should be in the range of 0.0 to 1.0,
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* inclusive and in multiples of 1/4095.
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*/
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AVRational average_maxrgb;
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/**
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* Indicates the variance brightness of the displayed content.
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* The values should be in the range of 0.0 to 1.0,
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* inclusive and in multiples of 1/4095.
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*/
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AVRational variance_maxrgb;
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/**
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* Indicates the maximum brightness of the displayed content.
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* The values should be in the range of 0.0 to 1.0, inclusive
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* and in multiples of 1/4095.
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*/
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AVRational maximum_maxrgb;
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/**
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* This flag indicates that the metadata for the tone mapping function in
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* the processing window is present (for value of 1).
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*/
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int tone_mapping_mode_flag;
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/**
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* The number of tone mapping param. The value shall be in the range
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* of 1 to 2, inclusive.
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*/
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int tone_mapping_param_num;
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/**
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* The color tone mapping parameters.
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*/
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AVHDRVividColorToneMappingParams tm_params[2];
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/**
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* This flag indicates that the metadata for the color saturation mapping in
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* the processing window is present (for value of 1).
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*/
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int color_saturation_mapping_flag;
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/**
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* The number of color saturation param. The value shall be in the range
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* of 0 to 7, inclusive.
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*/
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int color_saturation_num;
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/**
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* Indicates the color correction strength parameter.
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* The values should be in the range of 0.0 to 2.0, inclusive
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* and in multiples of 1/128.
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*/
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AVRational color_saturation_gain[8];
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} AVHDRVividColorTransformParams;
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/**
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* This struct represents dynamic metadata for color volume transform -
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* CUVA 005.1:2021 standard
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*
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* To be used as payload of a AVFrameSideData or AVPacketSideData with the
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* appropriate type.
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*
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* @note The struct should be allocated with
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* av_dynamic_hdr_vivid_alloc() and its size is not a part of
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* the public ABI.
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*/
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typedef struct AVDynamicHDRVivid {
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/**
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* The system start code. The value shall be set to 0x01.
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*/
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uint8_t system_start_code;
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/**
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* The number of processing windows. The value shall be set to 0x01
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* if the system_start_code is 0x01.
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*/
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uint8_t num_windows;
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/**
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* The color transform parameters for every processing window.
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*/
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AVHDRVividColorTransformParams params[3];
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} AVDynamicHDRVivid;
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/**
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* Allocate an AVDynamicHDRVivid structure and set its fields to
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* default values. The resulting struct can be freed using av_freep().
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*
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* @return An AVDynamicHDRVivid filled with default values or NULL
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* on failure.
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*/
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AVDynamicHDRVivid *av_dynamic_hdr_vivid_alloc(size_t *size);
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/**
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* Allocate a complete AVDynamicHDRVivid and add it to the frame.
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* @param frame The frame which side data is added to.
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*
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* @return The AVDynamicHDRVivid structure to be filled by caller or NULL
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* on failure.
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*/
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AVDynamicHDRVivid *av_dynamic_hdr_vivid_create_side_data(AVFrame *frame);
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#endif /* AVUTIL_HDR_DYNAMIC_VIVID_METADATA_H */
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