colorspace.c File Reference

#include "libavutil/frame.h"
#include "libavutil/mastering_display_metadata.h"
#include "libavutil/pixdesc.h"
#include "colorspace.h"

Go to the source code of this file.

Macros
#define	WP_D65   { 0.3127, 0.3290 }
#define	WP_C   { 0.3100, 0.3160 }
#define	WP_DCI   { 0.3140, 0.3510 }
#define	WP_E   { 1/3.0f, 1/3.0f }

Functions
void	ff_matrix_invert_3x3 (const double in[3][3], double out[3][3])
void	ff_matrix_mul_3x3 (double dst[3][3], const double src1[3][3], const double src2[3][3])
void	ff_fill_rgb2xyz_table (const struct PrimaryCoefficients *coeffs, const struct WhitepointCoefficients *wp, double rgb2xyz[3][3])
const struct LumaCoefficients *	ff_get_luma_coefficients (enum AVColorSpace csp)
const struct ColorPrimaries *	ff_get_color_primaries (enum AVColorPrimaries prm)
enum AVColorPrimaries	ff_detect_color_primaries (const struct ColorPrimaries *prm)
void	ff_fill_rgb2yuv_table (const struct LumaCoefficients *coeffs, double rgb2yuv[3][3])
double	ff_determine_signal_peak (AVFrame *in)
void	ff_update_hdr_metadata (AVFrame *in, double peak)

Variables
static const double	ycgco_matrix [3][3]
static const double	gbr_matrix [3][3]
static const struct LumaCoefficients	luma_coefficients [AVCOL_SPC_NB]
static const struct ColorPrimaries	color_primaries [AVCOL_PRI_NB]

Macro Definition Documentation

WP_D65

#define WP_D65   { 0.3127, 0.3290 }

Definition at line 141 of file colorspace.c.

WP_C

#define WP_C   { 0.3100, 0.3160 }

Definition at line 142 of file colorspace.c.

WP_DCI

#define WP_DCI   { 0.3140, 0.3510 }

Definition at line 143 of file colorspace.c.

WP_E

#define WP_E   { 1/3.0f, 1/3.0f }

Definition at line 144 of file colorspace.c.

Function Documentation

ff_matrix_invert_3x3()

void ff_matrix_invert_3x3	(	const double	in[3][3],
		double	out[3][3]
	)

Definition at line 27 of file colorspace.c.

Referenced by create_filtergraph(), ff_fill_rgb2xyz_table(), fill_whitepoint_conv_table(), get_rgb2rgb_matrix(), and tonemap_opencl_init().

ff_matrix_mul_3x3()

void ff_matrix_mul_3x3	(	double	dst[3][3],
		const double	src1[3][3],
		const double	src2[3][3]
	)

Definition at line 54 of file colorspace.c.

Referenced by create_filtergraph(), fill_whitepoint_conv_table(), and get_rgb2rgb_matrix().

ff_fill_rgb2xyz_table()

void ff_fill_rgb2xyz_table	(	const struct PrimaryCoefficients *	coeffs,
		const struct WhitepointCoefficients *	wp,
		double	rgb2xyz[3][3]
	)

Definition at line 68 of file colorspace.c.

Referenced by create_filtergraph(), and get_rgb2rgb_matrix().

ff_get_luma_coefficients()

const struct LumaCoefficients* ff_get_luma_coefficients

(

enum AVColorSpace

csp

)

Definition at line 128 of file colorspace.c.

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

ff_get_color_primaries()

const struct ColorPrimaries* ff_get_color_primaries

(

enum AVColorPrimaries

prm

)

Definition at line 160 of file colorspace.c.

Referenced by create_filtergraph(), and ff_icc_profile_generate().

ff_detect_color_primaries()

enum AVColorPrimaries ff_detect_color_primaries

(

const struct ColorPrimaries *

prm

)

Definition at line 173 of file colorspace.c.

Referenced by iccdetect_filter_frame().

ff_fill_rgb2yuv_table()

void ff_fill_rgb2yuv_table	(	const struct LumaCoefficients *	coeffs,
		double	rgb2yuv[3][3]
	)

Definition at line 198 of file colorspace.c.

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

ff_determine_signal_peak()

double ff_determine_signal_peak

(

AVFrame *

in

)

Definition at line 225 of file colorspace.c.

Referenced by filter_frame(), and tonemap_opencl_filter_frame().

ff_update_hdr_metadata()

void ff_update_hdr_metadata	(	AVFrame *	in,
		double	peak
	)

Definition at line 250 of file colorspace.c.

Referenced by filter_frame(), and tonemap_opencl_filter_frame().

Variable Documentation

ycgco_matrix

const double ycgco_matrix[3][3]

static

Initial value:

=
{
    {  0.25, 0.5,  0.25 },
    { -0.25, 0.5, -0.25 },
    {  0.5,  0,   -0.5  },
}

Definition at line 96 of file colorspace.c.

Referenced by ff_fill_rgb2yuv_table().

gbr_matrix

const double gbr_matrix[3][3]

static

Initial value:

=
{
    { 0,    1,   0   },
    { 0,   -0.5, 0.5 },
    { 0.5, -0.5, 0   },
}

Definition at line 103 of file colorspace.c.

Referenced by ff_fill_rgb2yuv_table().

luma_coefficients

const struct LumaCoefficients luma_coefficients[AVCOL_SPC_NB]

static

Initial value:

= {
    [AVCOL_SPC_FCC]        = { 0.30,   0.59,   0.11   },
    [AVCOL_SPC_BT470BG]    = { 0.299,  0.587,  0.114  },
    [AVCOL_SPC_SMPTE170M]  = { 0.299,  0.587,  0.114  },
    [AVCOL_SPC_BT709]      = { 0.2126, 0.7152, 0.0722 },
    [AVCOL_SPC_SMPTE240M]  = { 0.212,  0.701,  0.087  },
    [AVCOL_SPC_YCOCG]      = { 0.25,   0.5,    0.25   },
    [AVCOL_SPC_RGB]        = { 1,      1,      1      },
    [AVCOL_SPC_BT2020_NCL] = { 0.2627, 0.6780, 0.0593 },
    [AVCOL_SPC_BT2020_CL]  = { 0.2627, 0.6780, 0.0593 },
}

Definition at line 116 of file colorspace.c.

Referenced by ff_get_luma_coefficients().

color_primaries

const struct ColorPrimaries color_primaries[AVCOL_PRI_NB]

static

Initial value:

= {
    [AVCOL_PRI_BT709]     = { WP_D65, { 0.640, 0.330, 0.300, 0.600, 0.150, 0.060 } },
    [AVCOL_PRI_BT470M]    = { WP_C,   { 0.670, 0.330, 0.210, 0.710, 0.140, 0.080 } },
    [AVCOL_PRI_BT470BG]   = { WP_D65, { 0.640, 0.330, 0.290, 0.600, 0.150, 0.060 } },
    [AVCOL_PRI_SMPTE170M] = { WP_D65, { 0.630, 0.340, 0.310, 0.595, 0.155, 0.070 } },
    [AVCOL_PRI_SMPTE240M] = { WP_D65, { 0.630, 0.340, 0.310, 0.595, 0.155, 0.070 } },
    [AVCOL_PRI_SMPTE428]  = { WP_E,   { 0.735, 0.265, 0.274, 0.718, 0.167, 0.009 } },
    [AVCOL_PRI_SMPTE431]  = { WP_DCI, { 0.680, 0.320, 0.265, 0.690, 0.150, 0.060 } },
    [AVCOL_PRI_SMPTE432]  = { WP_D65, { 0.680, 0.320, 0.265, 0.690, 0.150, 0.060 } },
    [AVCOL_PRI_FILM]      = { WP_C,   { 0.681, 0.319, 0.243, 0.692, 0.145, 0.049 } },
    [AVCOL_PRI_BT2020]    = { WP_D65, { 0.708, 0.292, 0.170, 0.797, 0.131, 0.046 } },
    [AVCOL_PRI_JEDEC_P22] = { WP_D65, { 0.630, 0.340, 0.295, 0.605, 0.155, 0.077 } },
}

Definition at line 146 of file colorspace.c.

Referenced by color_config(), convert_primaries(), ff_detect_color_primaries(), ff_get_color_primaries(), mov_read_colr(), mov_read_vpcc(), print_primaries(), scale_vaapi_init(), and tonemap_vaapi_init().