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Files | Data Structures | Typedefs | Functions
Colorspace Utility

Files

file  csp.h
 

Data Structures

struct  AVLumaCoefficients
 Struct containing luma coefficients to be used for RGB to YUV/YCoCg, or similar calculations. More...
 
struct  AVCIExy
 Struct containing chromaticity x and y values for the standard CIE 1931 chromaticity definition. More...
 
struct  AVPrimaryCoefficients
 Struct defining the red, green, and blue primary locations in terms of CIE 1931 chromaticity x and y. More...
 
struct  AVColorPrimariesDesc
 Struct that contains both white point location and primaries location, providing the complete description of a color gamut. More...
 

Typedefs

typedef AVCIExy AVWhitepointCoefficients
 Struct defining white point location in terms of CIE 1931 chromaticity x and y. More...
 

Functions

const AVLumaCoefficientsav_csp_luma_coeffs_from_avcsp (enum AVColorSpace csp)
 Retrieves the Luma coefficients necessary to construct a conversion matrix from an enum constant describing the colorspace. More...
 
const AVColorPrimariesDescav_csp_primaries_desc_from_id (enum AVColorPrimaries prm)
 Retrieves a complete gamut description from an enum constant describing the color primaries. More...
 
enum AVColorPrimaries av_csp_primaries_id_from_desc (const AVColorPrimariesDesc *prm)
 Detects which enum AVColorPrimaries constant corresponds to the given complete gamut description. More...
 

Detailed Description

Typedef Documentation

◆ AVWhitepointCoefficients

Struct defining white point location in terms of CIE 1931 chromaticity x and y.

Definition at line 68 of file csp.h.

Function Documentation

◆ av_csp_luma_coeffs_from_avcsp()

const AVLumaCoefficients* av_csp_luma_coeffs_from_avcsp ( enum AVColorSpace  csp)

Retrieves the Luma coefficients necessary to construct a conversion matrix from an enum constant describing the colorspace.

Parameters
cspAn enum constant indicating YUV or similar colorspace.
Returns
The Luma coefficients associated with that colorspace, or NULL if the constant is unknown to libavutil.

Definition at line 53 of file csp.c.

Referenced by create_filtergraph(), ff_draw_init2(), filter_frame(), init_filter(), and tonemap_opencl_init().

◆ av_csp_primaries_desc_from_id()

const AVColorPrimariesDesc* av_csp_primaries_desc_from_id ( enum AVColorPrimaries  prm)

Retrieves a complete gamut description from an enum constant describing the color primaries.

Parameters
prmAn enum constant indicating primaries
Returns
A description of the colorspace gamut associated with that enum constant, or NULL if the constant is unknown to libavutil.

Definition at line 85 of file csp.c.

Referenced by create_filtergraph(), ff_icc_profile_generate(), get_rgb2rgb_matrix(), libjxl_get_primaries(), libjxl_populate_primaries(), and png_get_chrm().

◆ av_csp_primaries_id_from_desc()

enum AVColorPrimaries av_csp_primaries_id_from_desc ( const AVColorPrimariesDesc prm)

Detects which enum AVColorPrimaries constant corresponds to the given complete gamut description.

See also
enum AVColorPrimaries
Parameters
prmA description of the colorspace gamut
Returns
The enum constant associated with this gamut, or AVCOL_PRI_UNSPECIFIED if no clear match can be idenitified.

Definition at line 105 of file csp.c.

Referenced by iccdetect_filter_frame(), libjxl_get_primaries(), and output_frame().