/* * 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 */