mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-11-24 15:00:11 +01:00
344 lines
12 KiB
C
344 lines
12 KiB
C
/*
|
|
* Copyright (c) 2018 Mohammad Izadi <moh.izadi 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_METADATA_H
|
|
#define AVUTIL_HDR_DYNAMIC_METADATA_H
|
|
|
|
#include "frame.h"
|
|
#include "rational.h"
|
|
|
|
/**
|
|
* Option for overlapping elliptical pixel selectors in an image.
|
|
*/
|
|
enum AVHDRPlusOverlapProcessOption {
|
|
AV_HDR_PLUS_OVERLAP_PROCESS_WEIGHTED_AVERAGING = 0,
|
|
AV_HDR_PLUS_OVERLAP_PROCESS_LAYERING = 1,
|
|
};
|
|
|
|
/**
|
|
* Represents the percentile at a specific percentage in
|
|
* a distribution.
|
|
*/
|
|
typedef struct AVHDRPlusPercentile {
|
|
/**
|
|
* The percentage value corresponding to a specific percentile linearized
|
|
* RGB value in the processing window in the scene. The value shall be in
|
|
* the range of 0 to100, inclusive.
|
|
*/
|
|
uint8_t percentage;
|
|
|
|
/**
|
|
* The linearized maxRGB value at a specific percentile in the processing
|
|
* window in the scene. The value shall be in the range of 0 to 1, inclusive
|
|
* and in multiples of 0.00001.
|
|
*/
|
|
AVRational percentile;
|
|
} AVHDRPlusPercentile;
|
|
|
|
/**
|
|
* Color transform parameters at a processing window in a dynamic metadata for
|
|
* SMPTE 2094-40.
|
|
*/
|
|
typedef struct AVHDRPlusColorTransformParams {
|
|
/**
|
|
* The relative x coordinate of the top left pixel of the processing
|
|
* window. The value shall be in the range of 0 and 1, inclusive and
|
|
* in multiples of 1/(width of Picture - 1). The value 1 corresponds
|
|
* to the absolute coordinate of width of Picture - 1. The value for
|
|
* first processing window shall be 0.
|
|
*/
|
|
AVRational window_upper_left_corner_x;
|
|
|
|
/**
|
|
* The relative y coordinate of the top left pixel of the processing
|
|
* window. The value shall be in the range of 0 and 1, inclusive and
|
|
* in multiples of 1/(height of Picture - 1). The value 1 corresponds
|
|
* to the absolute coordinate of height of Picture - 1. The value for
|
|
* first processing window shall be 0.
|
|
*/
|
|
AVRational window_upper_left_corner_y;
|
|
|
|
/**
|
|
* The relative x coordinate of the bottom right pixel of the processing
|
|
* window. The value shall be in the range of 0 and 1, inclusive and
|
|
* in multiples of 1/(width of Picture - 1). The value 1 corresponds
|
|
* to the absolute coordinate of width of Picture - 1. The value for
|
|
* first processing window shall be 1.
|
|
*/
|
|
AVRational window_lower_right_corner_x;
|
|
|
|
/**
|
|
* The relative y coordinate of the bottom right pixel of the processing
|
|
* window. The value shall be in the range of 0 and 1, inclusive and
|
|
* in multiples of 1/(height of Picture - 1). The value 1 corresponds
|
|
* to the absolute coordinate of height of Picture - 1. The value for
|
|
* first processing window shall be 1.
|
|
*/
|
|
AVRational window_lower_right_corner_y;
|
|
|
|
/**
|
|
* The x coordinate of the center position of the concentric internal and
|
|
* external ellipses of the elliptical pixel selector in the processing
|
|
* window. The value shall be in the range of 0 to (width of Picture - 1),
|
|
* inclusive and in multiples of 1 pixel.
|
|
*/
|
|
uint16_t center_of_ellipse_x;
|
|
|
|
/**
|
|
* The y coordinate of the center position of the concentric internal and
|
|
* external ellipses of the elliptical pixel selector in the processing
|
|
* window. The value shall be in the range of 0 to (height of Picture - 1),
|
|
* inclusive and in multiples of 1 pixel.
|
|
*/
|
|
uint16_t center_of_ellipse_y;
|
|
|
|
/**
|
|
* The clockwise rotation angle in degree of arc with respect to the
|
|
* positive direction of the x-axis of the concentric internal and external
|
|
* ellipses of the elliptical pixel selector in the processing window. The
|
|
* value shall be in the range of 0 to 180, inclusive and in multiples of 1.
|
|
*/
|
|
uint8_t rotation_angle;
|
|
|
|
/**
|
|
* The semi-major axis value of the internal ellipse of the elliptical pixel
|
|
* selector in amount of pixels in the processing window. The value shall be
|
|
* in the range of 1 to 65535, inclusive and in multiples of 1 pixel.
|
|
*/
|
|
uint16_t semimajor_axis_internal_ellipse;
|
|
|
|
/**
|
|
* The semi-major axis value of the external ellipse of the elliptical pixel
|
|
* selector in amount of pixels in the processing window. The value
|
|
* shall not be less than semimajor_axis_internal_ellipse of the current
|
|
* processing window. The value shall be in the range of 1 to 65535,
|
|
* inclusive and in multiples of 1 pixel.
|
|
*/
|
|
uint16_t semimajor_axis_external_ellipse;
|
|
|
|
/**
|
|
* The semi-minor axis value of the external ellipse of the elliptical pixel
|
|
* selector in amount of pixels in the processing window. The value shall be
|
|
* in the range of 1 to 65535, inclusive and in multiples of 1 pixel.
|
|
*/
|
|
uint16_t semiminor_axis_external_ellipse;
|
|
|
|
/**
|
|
* Overlap process option indicates one of the two methods of combining
|
|
* rendered pixels in the processing window in an image with at least one
|
|
* elliptical pixel selector. For overlapping elliptical pixel selectors
|
|
* in an image, overlap_process_option shall have the same value.
|
|
*/
|
|
enum AVHDRPlusOverlapProcessOption overlap_process_option;
|
|
|
|
/**
|
|
* The maximum of the color components of linearized RGB values in the
|
|
* processing window in the scene. The values should be in the range of 0 to
|
|
* 1, inclusive and in multiples of 0.00001. maxscl[ 0 ], maxscl[ 1 ], and
|
|
* maxscl[ 2 ] are corresponding to R, G, B color components respectively.
|
|
*/
|
|
AVRational maxscl[3];
|
|
|
|
/**
|
|
* The average of linearized maxRGB values in the processing window in the
|
|
* scene. The value should be in the range of 0 to 1, inclusive and in
|
|
* multiples of 0.00001.
|
|
*/
|
|
AVRational average_maxrgb;
|
|
|
|
/**
|
|
* The number of linearized maxRGB values at given percentiles in the
|
|
* processing window in the scene. The maximum value shall be 15.
|
|
*/
|
|
uint8_t num_distribution_maxrgb_percentiles;
|
|
|
|
/**
|
|
* The linearized maxRGB values at given percentiles in the
|
|
* processing window in the scene.
|
|
*/
|
|
AVHDRPlusPercentile distribution_maxrgb[15];
|
|
|
|
/**
|
|
* The fraction of selected pixels in the image that contains the brightest
|
|
* pixel in the scene. The value shall be in the range of 0 to 1, inclusive
|
|
* and in multiples of 0.001.
|
|
*/
|
|
AVRational fraction_bright_pixels;
|
|
|
|
/**
|
|
* This flag indicates that the metadata for the tone mapping function in
|
|
* the processing window is present (for value of 1).
|
|
*/
|
|
uint8_t tone_mapping_flag;
|
|
|
|
/**
|
|
* The x coordinate of the separation point between the linear part and the
|
|
* curved part of the tone mapping function. The value shall be in the range
|
|
* of 0 to 1, excluding 0 and in multiples of 1/4095.
|
|
*/
|
|
AVRational knee_point_x;
|
|
|
|
/**
|
|
* The y coordinate of the separation point between the linear part and the
|
|
* curved part of the tone mapping function. The value shall be in the range
|
|
* of 0 to 1, excluding 0 and in multiples of 1/4095.
|
|
*/
|
|
AVRational knee_point_y;
|
|
|
|
/**
|
|
* The number of the intermediate anchor parameters of the tone mapping
|
|
* function in the processing window. The maximum value shall be 15.
|
|
*/
|
|
uint8_t num_bezier_curve_anchors;
|
|
|
|
/**
|
|
* The intermediate anchor parameters of the tone mapping function in the
|
|
* processing window in the scene. The values should be in the range of 0
|
|
* to 1, inclusive and in multiples of 1/1023.
|
|
*/
|
|
AVRational bezier_curve_anchors[15];
|
|
|
|
/**
|
|
* This flag shall be equal to 0 in bitstreams conforming to this version of
|
|
* this Specification. Other values are reserved for future use.
|
|
*/
|
|
uint8_t color_saturation_mapping_flag;
|
|
|
|
/**
|
|
* The color saturation gain in the processing window in the scene. The
|
|
* value shall be in the range of 0 to 63/8, inclusive and in multiples of
|
|
* 1/8. The default value shall be 1.
|
|
*/
|
|
AVRational color_saturation_weight;
|
|
} AVHDRPlusColorTransformParams;
|
|
|
|
/**
|
|
* This struct represents dynamic metadata for color volume transform -
|
|
* application 4 of SMPTE 2094-40:2016 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_plus_alloc() and its size is not a part of
|
|
* the public ABI.
|
|
*/
|
|
typedef struct AVDynamicHDRPlus {
|
|
/**
|
|
* Country code by Rec. ITU-T T.35 Annex A. The value shall be 0xB5.
|
|
*/
|
|
uint8_t itu_t_t35_country_code;
|
|
|
|
/**
|
|
* Application version in the application defining document in ST-2094
|
|
* suite. The value shall be set to 0.
|
|
*/
|
|
uint8_t application_version;
|
|
|
|
/**
|
|
* The number of processing windows. The value shall be in the range
|
|
* of 1 to 3, inclusive.
|
|
*/
|
|
uint8_t num_windows;
|
|
|
|
/**
|
|
* The color transform parameters for every processing window.
|
|
*/
|
|
AVHDRPlusColorTransformParams params[3];
|
|
|
|
/**
|
|
* The nominal maximum display luminance of the targeted system display,
|
|
* in units of 0.0001 candelas per square metre. The value shall be in
|
|
* the range of 0 to 10000, inclusive.
|
|
*/
|
|
AVRational targeted_system_display_maximum_luminance;
|
|
|
|
/**
|
|
* This flag shall be equal to 0 in bit streams conforming to this version
|
|
* of this Specification. The value 1 is reserved for future use.
|
|
*/
|
|
uint8_t targeted_system_display_actual_peak_luminance_flag;
|
|
|
|
/**
|
|
* The number of rows in the targeted system_display_actual_peak_luminance
|
|
* array. The value shall be in the range of 2 to 25, inclusive.
|
|
*/
|
|
uint8_t num_rows_targeted_system_display_actual_peak_luminance;
|
|
|
|
/**
|
|
* The number of columns in the
|
|
* targeted_system_display_actual_peak_luminance array. The value shall be
|
|
* in the range of 2 to 25, inclusive.
|
|
*/
|
|
uint8_t num_cols_targeted_system_display_actual_peak_luminance;
|
|
|
|
/**
|
|
* The normalized actual peak luminance of the targeted system display. The
|
|
* values should be in the range of 0 to 1, inclusive and in multiples of
|
|
* 1/15.
|
|
*/
|
|
AVRational targeted_system_display_actual_peak_luminance[25][25];
|
|
|
|
/**
|
|
* This flag shall be equal to 0 in bitstreams conforming to this version of
|
|
* this Specification. The value 1 is reserved for future use.
|
|
*/
|
|
uint8_t mastering_display_actual_peak_luminance_flag;
|
|
|
|
/**
|
|
* The number of rows in the mastering_display_actual_peak_luminance array.
|
|
* The value shall be in the range of 2 to 25, inclusive.
|
|
*/
|
|
uint8_t num_rows_mastering_display_actual_peak_luminance;
|
|
|
|
/**
|
|
* The number of columns in the mastering_display_actual_peak_luminance
|
|
* array. The value shall be in the range of 2 to 25, inclusive.
|
|
*/
|
|
uint8_t num_cols_mastering_display_actual_peak_luminance;
|
|
|
|
/**
|
|
* The normalized actual peak luminance of the mastering display used for
|
|
* mastering the image essence. The values should be in the range of 0 to 1,
|
|
* inclusive and in multiples of 1/15.
|
|
*/
|
|
AVRational mastering_display_actual_peak_luminance[25][25];
|
|
} AVDynamicHDRPlus;
|
|
|
|
/**
|
|
* Allocate an AVDynamicHDRPlus structure and set its fields to
|
|
* default values. The resulting struct can be freed using av_freep().
|
|
*
|
|
* @return An AVDynamicHDRPlus filled with default values or NULL
|
|
* on failure.
|
|
*/
|
|
AVDynamicHDRPlus *av_dynamic_hdr_plus_alloc(size_t *size);
|
|
|
|
/**
|
|
* Allocate a complete AVDynamicHDRPlus and add it to the frame.
|
|
* @param frame The frame which side data is added to.
|
|
*
|
|
* @return The AVDynamicHDRPlus structure to be filled by caller or NULL
|
|
* on failure.
|
|
*/
|
|
AVDynamicHDRPlus *av_dynamic_hdr_plus_create_side_data(AVFrame *frame);
|
|
|
|
#endif /* AVUTIL_HDR_DYNAMIC_METADATA_H */
|