#include <stdlib.h>
#include <math.h>
#include "attributes.h"
#include "csp.h"
#include "pixfmt.h"
#include "rational.h"

Macros
#define	AVR(d) { (int)(d * 100000 + 0.5), 100000 }

#define	WP_D65 { AVR(0.3127), AVR(0.3290) }

#define	WP_C { AVR(0.3100), AVR(0.3160) }

#define	WP_DCI { AVR(0.3140), AVR(0.3510) }

#define	WP_E { {1, 3}, {1, 3} }

#define	BT709_alpha 1.099296826809442

#define	BT709_beta 0.018053968510807

#define	PQ_c1 ( 3424.0 / 4096.0) /* c3-c2 + 1 */

#define	PQ_c2 ( 32.0 * 2413.0 / 4096.0)

#define	PQ_c3 ( 32.0 * 2392.0 / 4096.0)

#define	PQ_m (128.0 * 2523.0 / 4096.0)

#define	PQ_n ( 0.25 * 2610.0 / 4096.0)

#define	DCI_L 48.00

#define	DCI_P 52.37

#define	HLG_a 0.17883277

#define	HLG_b 0.28466892

#define	HLG_c 0.55991073

#define	WRAP_SDR_OETF(name)

#define	WRAP_SDR_EOTF(name)

#define	DCI_L 48.00

#define	DCI_P 52.37

#define	DCI_X (42.94 / DCI_L)

#define	DCI_Z (45.82 / DCI_L)

Functions
const struct 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. More...

const AVColorPrimariesDesc *	av_csp_primaries_desc_from_id (enum AVColorPrimaries prm)
	Retrieves a complete gamut description from an enum constant describing the color primaries. More...

static av_always_inline AVRational	abs_sub_q (AVRational r1, AVRational r2)

enum AVColorPrimaries	av_csp_primaries_id_from_desc (const AVColorPrimariesDesc *prm)
	Detects which enum AVColorPrimaries constant corresponds to the given complete gamut description. More...

double	av_csp_approximate_trc_gamma (enum AVColorTransferCharacteristic trc)
	Determine a suitable 'gamma' value to match the supplied AVColorTransferCharacteristic. More...

static double	trc_bt709 (double Lc)

static double	trc_bt709_inv (double E)

static double	trc_gamma22 (double Lc)

static double	trc_gamma22_inv (double E)

static double	trc_gamma28 (double Lc)

static double	trc_gamma28_inv (double E)

static double	trc_smpte240M (double Lc)

static double	trc_smpte240M_inv (double E)

static double	trc_linear (double Lc)

static double	trc_log (double Lc)

static double	trc_log_inv (double E)

static double	trc_log_sqrt (double Lc)

static double	trc_log_sqrt_inv (double E)

static double	trc_iec61966_2_4 (double Lc)

static double	trc_iec61966_2_4_inv (double E)

static double	trc_bt1361 (double Lc)

static double	trc_bt1361_inv (double E)

static double	trc_iec61966_2_1 (double Lc)

static double	trc_iec61966_2_1_inv (double E)

static double	trc_smpte_st2084 (double Lc)

static double	trc_smpte_st2084_inv (double E)

static double	trc_smpte_st428_1 (double Lc)

static double	trc_smpte_st428_1_inv (double E)

static double	trc_arib_std_b67 (double Lc)

static double	trc_arib_std_b67_inv (double E)

av_csp_trc_function	av_csp_trc_func_from_id (enum AVColorTransferCharacteristic trc)
	Determine the function needed to apply the given AVColorTransferCharacteristic to linear input. More...

av_csp_trc_function	av_csp_trc_func_inv_from_id (enum AVColorTransferCharacteristic trc)
	Returns the mathematical inverse of the corresponding TRC function. More...

static void	eotf_linear (const double Lw, const double Lb, double E[3])

static void	eotf_linear_inv (const double Lw, const double Lb, double L[3])

static void	eotf_bt1886 (const double Lw, const double Lb, double E[3])

static void	eotf_bt1886_inv (const double Lw, const double Lb, double L[3])

static void	eotf_smpte_st2084 (const double Lw, const double Lb, double E[3])

static void	eotf_smpte_st2084_inv (const double Lw, const double Lb, double L[3])

static void	eotf_smpte_st428_1 (const double Lw_Y, const double Lb_Y, double E[3])

static void	eotf_smpte_st428_1_inv (const double Lw_Y, const double Lb_Y, double L[3])

static void	eotf_arib_std_b67 (const double Lw, const double Lb, double E[3])

static void	eotf_arib_std_b67_inv (const double Lw, const double Lb, double L[3])

av_csp_eotf_function	av_csp_itu_eotf (enum AVColorTransferCharacteristic trc)
	Returns the ITU EOTF corresponding to a given TRC. More...

av_csp_eotf_function	av_csp_itu_eotf_inv (enum AVColorTransferCharacteristic trc)
	Returns the mathematical inverse of the corresponding EOTF. More...

Variables
static const struct AVLumaCoefficients	luma_coefficients [AVCOL_SPC_NB]

static const AVColorPrimariesDesc	color_primaries [AVCOL_PRI_NB]

static const double	approximate_gamma [AVCOL_TRC_NB]

static const av_csp_trc_function	trc_funcs [AVCOL_TRC_NB]

static const av_csp_trc_function	trc_inv_funcs [AVCOL_TRC_NB]

static const av_csp_eotf_function	eotf_funcs [AVCOL_TRC_NB]

static const av_csp_eotf_function	eotf_inv_funcs [AVCOL_TRC_NB]

Macro Definition Documentation

◆ AVR

#define AVR ( d ) { (int)(d * 100000 + 0.5), 100000 }

Definition at line 38 of file csp.c.

◆ WP_D65

#define WP_D65 { AVR(0.3127), AVR(0.3290) }

Definition at line 71 of file csp.c.

◆ WP_C

#define WP_C { AVR(0.3100), AVR(0.3160) }

Definition at line 72 of file csp.c.

◆ WP_DCI

#define WP_DCI { AVR(0.3140), AVR(0.3510) }

Definition at line 73 of file csp.c.

◆ WP_E

#define WP_E { {1, 3}, {1, 3} }

Definition at line 74 of file csp.c.

◆ BT709_alpha

#define BT709_alpha 1.099296826809442

Definition at line 160 of file csp.c.

◆ BT709_beta

#define BT709_beta 0.018053968510807

Definition at line 161 of file csp.c.

◆ PQ_c1

#define PQ_c1 ( 3424.0 / 4096.0) /* c3-c2 + 1 */

Definition at line 310 of file csp.c.

◆ PQ_c2

#define PQ_c2 ( 32.0 * 2413.0 / 4096.0)

Definition at line 311 of file csp.c.

◆ PQ_c3

#define PQ_c3 ( 32.0 * 2392.0 / 4096.0)

Definition at line 312 of file csp.c.

◆ PQ_m

#define PQ_m (128.0 * 2523.0 / 4096.0)

Definition at line 313 of file csp.c.

◆ PQ_n

#define PQ_n ( 0.25 * 2610.0 / 4096.0)

Definition at line 314 of file csp.c.

◆ DCI_L [1/2]

#define DCI_L 48.00

Definition at line 514 of file csp.c.

◆ DCI_P [1/2]

#define DCI_P 52.37

Definition at line 515 of file csp.c.

◆ HLG_a

#define HLG_a 0.17883277

Definition at line 357 of file csp.c.

◆ HLG_b

#define HLG_b 0.28466892

Definition at line 358 of file csp.c.

◆ HLG_c

#define HLG_c 0.55991073

Definition at line 359 of file csp.c.

◆ WRAP_SDR_OETF

#define WRAP_SDR_OETF ( name )

Value:

static void oetf_##name(double L[3])                                \
{                                                                   \
    for (int i = 0; i < 3; i++)                                     \
        L[i] = trc_##name(L[i]);                                    \
}                                                                   \
                                                                    \
static void oetf_##name##_inv(double E[3])                          \
{                                                                   \
    for (int i = 0; i < 3; i++)                                     \
        E[i] = trc_##name##_inv(E[i]);                              \
}

Definition at line 445 of file csp.c.

◆ WRAP_SDR_EOTF

#define WRAP_SDR_EOTF ( name )

Value:

static void eotf_##name(double Lw, double Lb, double E[3])          \
{                                                                   \
    oetf_##name##_inv(E);                                           \
    eotf_linear(Lw, Lb, E);                                         \
}                                                                   \
                                                                    \
static void eotf_##name##_inv(double Lw, double Lb, double L[3])    \
{                                                                   \
    eotf_linear_inv(Lw, Lb, L);                                     \
    oetf_##name(L);                                                 \
}

Definition at line 462 of file csp.c.

◆ DCI_L [2/2]

#define DCI_L 48.00

Definition at line 514 of file csp.c.

◆ DCI_P [2/2]

#define DCI_P 52.37

Definition at line 515 of file csp.c.

◆ DCI_X

#define DCI_X (42.94 / DCI_L)

Definition at line 516 of file csp.c.

◆ DCI_Z

#define DCI_Z (45.82 / DCI_L)

Definition at line 517 of file csp.c.

Function Documentation

◆ abs_sub_q()

static av_always_inline AVRational abs_sub_q	(	AVRational	r1,
		AVRational	r2
	)

static

Definition at line 103 of file csp.c.

Referenced by av_csp_primaries_id_from_desc().

◆ trc_bt709()

static double trc_bt709 ( double Lc )

static

Definition at line 163 of file csp.c.

◆ trc_bt709_inv()

static double trc_bt709_inv ( double E )

static

Definition at line 173 of file csp.c.

◆ trc_gamma22()

static double trc_gamma22 ( double Lc )

static

Definition at line 183 of file csp.c.

◆ trc_gamma22_inv()

static double trc_gamma22_inv ( double E )

static

Definition at line 188 of file csp.c.

◆ trc_gamma28()

static double trc_gamma28 ( double Lc )

static

Definition at line 193 of file csp.c.

◆ trc_gamma28_inv()

static double trc_gamma28_inv ( double E )

static

Definition at line 198 of file csp.c.

◆ trc_smpte240M()

static double trc_smpte240M ( double Lc )

static

Definition at line 203 of file csp.c.

◆ trc_smpte240M_inv()

static double trc_smpte240M_inv ( double E )

static

Definition at line 213 of file csp.c.

◆ trc_linear()

static double trc_linear ( double Lc )

static

Definition at line 223 of file csp.c.

◆ trc_log()

static double trc_log ( double Lc )

static

Definition at line 228 of file csp.c.

◆ trc_log_inv()

static double trc_log_inv ( double E )

static

Definition at line 233 of file csp.c.

◆ trc_log_sqrt()

static double trc_log_sqrt ( double Lc )

static

Definition at line 238 of file csp.c.

◆ trc_log_sqrt_inv()

static double trc_log_sqrt_inv ( double E )

static

Definition at line 244 of file csp.c.

◆ trc_iec61966_2_4()

static double trc_iec61966_2_4 ( double Lc )

static

Definition at line 249 of file csp.c.

◆ trc_iec61966_2_4_inv()

static double trc_iec61966_2_4_inv ( double E )

static

Definition at line 259 of file csp.c.

◆ trc_bt1361()

static double trc_bt1361 ( double Lc )

static

Definition at line 269 of file csp.c.

◆ trc_bt1361_inv()

static double trc_bt1361_inv ( double E )

static

Definition at line 279 of file csp.c.

◆ trc_iec61966_2_1()

static double trc_iec61966_2_1 ( double Lc )

static

Definition at line 289 of file csp.c.

◆ trc_iec61966_2_1_inv()

static double trc_iec61966_2_1_inv ( double E )

static

Definition at line 299 of file csp.c.

◆ trc_smpte_st2084()

static double trc_smpte_st2084 ( double Lc )

static

Definition at line 316 of file csp.c.

Referenced by eotf_smpte_st2084_inv().

◆ trc_smpte_st2084_inv()

static double trc_smpte_st2084_inv ( double E )

static

Definition at line 331 of file csp.c.

Referenced by eotf_smpte_st2084().

◆ trc_smpte_st428_1()

static double trc_smpte_st428_1 ( double Lc )

static

Definition at line 347 of file csp.c.

◆ trc_smpte_st428_1_inv()

static double trc_smpte_st428_1_inv ( double E )

static

Definition at line 352 of file csp.c.

◆ trc_arib_std_b67()

static double trc_arib_std_b67 ( double Lc )

static

Definition at line 361 of file csp.c.

Referenced by eotf_arib_std_b67_inv().

◆ trc_arib_std_b67_inv()

static double trc_arib_std_b67_inv ( double E )

static

Definition at line 372 of file csp.c.

Referenced by eotf_arib_std_b67().

◆ eotf_linear()

static void eotf_linear	(	const double	Lw,
		const double	Lb,
		double	E[3]
	)

static

Definition at line 433 of file csp.c.

◆ eotf_linear_inv()

static void eotf_linear_inv	(	const double	Lw,
		const double	Lb,
		double	L[3]
	)

static

Definition at line 439 of file csp.c.

◆ eotf_bt1886()

static void eotf_bt1886	(	const double	Lw,
		const double	Lb,
		double	E[3]
	)

static

Definition at line 479 of file csp.c.

◆ eotf_bt1886_inv()

static void eotf_bt1886_inv	(	const double	Lw,
		const double	Lb,
		double	L[3]
	)

static

Definition at line 490 of file csp.c.

◆ eotf_smpte_st2084()

static void eotf_smpte_st2084	(	const double	Lw,
		const double	Lb,
		double	E[3]
	)

static

Definition at line 501 of file csp.c.

◆ eotf_smpte_st2084_inv()

static void eotf_smpte_st2084_inv	(	const double	Lw,
		const double	Lb,
		double	L[3]
	)

static

Definition at line 507 of file csp.c.

◆ eotf_smpte_st428_1()

static void eotf_smpte_st428_1	(	const double	Lw_Y,
		const double	Lb_Y,
		double	E[3]
	)

static

Definition at line 519 of file csp.c.

◆ eotf_smpte_st428_1_inv()

static void eotf_smpte_st428_1_inv	(	const double	Lw_Y,
		const double	Lb_Y,
		double	L[3]
	)

static

Definition at line 530 of file csp.c.

◆ eotf_arib_std_b67()

static void eotf_arib_std_b67	(	const double	Lw,
		const double	Lb,
		double	E[3]
	)

static

Note: This equation is technically only accurate if the contrast ratio Lw:Lb is greater than 12:1; otherwise we would need to use a different, significantly more complicated solution. Ignore this as a highly degenerate case, since any real world reference display will have a static contrast ratio multiple orders of magnitude higher.

Definition at line 541 of file csp.c.

◆ eotf_arib_std_b67_inv()

static void eotf_arib_std_b67_inv	(	const double	Lw,
		const double	Lb,
		double	L[3]
	)

static

Definition at line 564 of file csp.c.

Variable Documentation

◆ luma_coefficients

const struct AVLumaCoefficients luma_coefficients[AVCOL_SPC_NB]

static

Initial value:

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

Definition at line 46 of file csp.c.

Referenced by av_csp_luma_coeffs_from_avcsp().

◆ color_primaries

const AVColorPrimariesDesc color_primaries[AVCOL_PRI_NB]

static

Initial value:

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

Definition at line 76 of file csp.c.

Referenced by av_csp_primaries_desc_from_id(), av_csp_primaries_id_from_desc(), color_config(), convert_primaries(), dovi_configure_ext(), frame_header(), mov_read_colr(), mov_read_vpcc(), print_film_grain_params(), print_primaries(), scale_vaapi_init(), scale_vt_init(), tonemap_vaapi_init(), and vpp_init().

◆ approximate_gamma

const double approximate_gamma[AVCOL_TRC_NB]

static

Initial value:

= {
    [AVCOL_TRC_BT709] = 1.961,
    [AVCOL_TRC_SMPTE170M] = 1.961,
    [AVCOL_TRC_SMPTE240M] = 1.961,
    [AVCOL_TRC_BT1361_ECG] = 1.961,
    [AVCOL_TRC_BT2020_10] = 1.961,
    [AVCOL_TRC_BT2020_12] = 1.961,
    [AVCOL_TRC_GAMMA22] = 2.2,
    [AVCOL_TRC_IEC61966_2_1] = 2.2,
    [AVCOL_TRC_GAMMA28] = 2.8,
    [AVCOL_TRC_LINEAR] = 1.0,
    [AVCOL_TRC_SMPTE428] = 2.6,
}

Definition at line 135 of file csp.c.

Referenced by av_csp_approximate_trc_gamma().

◆ trc_funcs

const av_csp_trc_function trc_funcs[AVCOL_TRC_NB]

static

Initial value:

= {
    [AVCOL_TRC_BT709] = trc_bt709,
    [AVCOL_TRC_GAMMA22] = trc_gamma22,
    [AVCOL_TRC_GAMMA28] = trc_gamma28,
    [AVCOL_TRC_SMPTE170M] = trc_bt709,
    [AVCOL_TRC_SMPTE240M] = trc_smpte240M,
    [AVCOL_TRC_LINEAR] = trc_linear,
    [AVCOL_TRC_LOG] = trc_log,
    [AVCOL_TRC_LOG_SQRT] = trc_log_sqrt,
    [AVCOL_TRC_IEC61966_2_4] = trc_iec61966_2_4,
    [AVCOL_TRC_BT1361_ECG] = trc_bt1361,
    [AVCOL_TRC_IEC61966_2_1] = trc_iec61966_2_1,
    [AVCOL_TRC_BT2020_10] = trc_bt709,
    [AVCOL_TRC_BT2020_12] = trc_bt709,
    [AVCOL_TRC_SMPTE2084] = trc_smpte_st2084,
    [AVCOL_TRC_SMPTE428] = trc_smpte_st428_1,
    [AVCOL_TRC_ARIB_STD_B67] = trc_arib_std_b67,
}

Definition at line 381 of file csp.c.

Referenced by av_csp_trc_func_from_id().

◆ trc_inv_funcs

const av_csp_trc_function trc_inv_funcs[AVCOL_TRC_NB]

static

Initial value:

Definition at line 407 of file csp.c.

Referenced by av_csp_trc_func_inv_from_id().

◆ eotf_funcs

const av_csp_eotf_function eotf_funcs[AVCOL_TRC_NB]

static

Initial value:

= {
    [AVCOL_TRC_BT709] = eotf_bt1886,
    [AVCOL_TRC_GAMMA22] = eotf_gamma22,
    [AVCOL_TRC_GAMMA28] = eotf_gamma28,
    [AVCOL_TRC_SMPTE170M] = eotf_bt1886,
    [AVCOL_TRC_SMPTE240M] = eotf_bt1886,
    [AVCOL_TRC_LINEAR] = eotf_linear,
    
    [AVCOL_TRC_LOG] = NULL,
    [AVCOL_TRC_LOG_SQRT] = NULL,
    
    [AVCOL_TRC_IEC61966_2_4] = eotf_bt1886,
    [AVCOL_TRC_BT1361_ECG] = eotf_bt1886,
    [AVCOL_TRC_IEC61966_2_1] = eotf_iec61966_2_1,
    [AVCOL_TRC_BT2020_10] = eotf_bt1886,
    [AVCOL_TRC_BT2020_12] = eotf_bt1886,
    [AVCOL_TRC_SMPTE2084] = eotf_smpte_st2084,
    [AVCOL_TRC_SMPTE428] = eotf_smpte_st428_1,
    [AVCOL_TRC_ARIB_STD_B67] = eotf_arib_std_b67,
}

Definition at line 582 of file csp.c.

Referenced by av_csp_itu_eotf().

◆ eotf_inv_funcs

const av_csp_eotf_function eotf_inv_funcs[AVCOL_TRC_NB]

static

Initial value:

= {
    [AVCOL_TRC_BT709] = eotf_bt1886_inv,
    [AVCOL_TRC_GAMMA22] = eotf_gamma22_inv,
    [AVCOL_TRC_GAMMA28] = eotf_gamma28_inv,
    [AVCOL_TRC_SMPTE170M] = eotf_bt1886_inv,
    [AVCOL_TRC_SMPTE240M] = eotf_bt1886_inv,
    [AVCOL_TRC_LINEAR] = eotf_linear_inv,
    [AVCOL_TRC_LOG] = NULL,
    [AVCOL_TRC_LOG_SQRT] = NULL,
    [AVCOL_TRC_IEC61966_2_4] = eotf_bt1886_inv,
    [AVCOL_TRC_BT1361_ECG] = eotf_bt1886_inv,
    [AVCOL_TRC_IEC61966_2_1] = eotf_iec61966_2_1_inv,
    [AVCOL_TRC_BT2020_10] = eotf_bt1886_inv,
    [AVCOL_TRC_BT2020_12] = eotf_bt1886_inv,
    [AVCOL_TRC_SMPTE2084] = eotf_smpte_st2084_inv,
    [AVCOL_TRC_SMPTE428] = eotf_smpte_st428_1_inv,
    [AVCOL_TRC_ARIB_STD_B67] = eotf_arib_std_b67_inv,
}

Definition at line 612 of file csp.c.

Referenced by av_csp_itu_eotf_inv().

Macros

Functions

Variables

Macro Definition Documentation

◆ AVR

◆ WP_D65

◆ WP_C

◆ WP_DCI

◆ WP_E

◆ BT709_alpha

◆ BT709_beta

◆ PQ_c1

◆ PQ_c2

◆ PQ_c3

◆ PQ_m

◆ PQ_n

◆ DCI_L [1/2]

◆ DCI_P [1/2]

◆ HLG_a

◆ HLG_b

◆ HLG_c

◆ WRAP_SDR_OETF

◆ WRAP_SDR_EOTF

◆ DCI_L [2/2]

◆ DCI_P [2/2]

◆ DCI_X

◆ DCI_Z

Function Documentation

◆ abs_sub_q()

◆ trc_bt709()

◆ trc_bt709_inv()

◆ trc_gamma22()

◆ trc_gamma22_inv()

◆ trc_gamma28()

◆ trc_gamma28_inv()

◆ trc_smpte240M()

◆ trc_smpte240M_inv()

◆ trc_linear()

◆ trc_log()

◆ trc_log_inv()

◆ trc_log_sqrt()

◆ trc_log_sqrt_inv()

◆ trc_iec61966_2_4()

◆ trc_iec61966_2_4_inv()

◆ trc_bt1361()

◆ trc_bt1361_inv()

◆ trc_iec61966_2_1()

◆ trc_iec61966_2_1_inv()

◆ trc_smpte_st2084()

◆ trc_smpte_st2084_inv()

◆ trc_smpte_st428_1()

◆ trc_smpte_st428_1_inv()

◆ trc_arib_std_b67()

◆ trc_arib_std_b67_inv()

◆ eotf_linear()

◆ eotf_linear_inv()

◆ eotf_bt1886()

◆ eotf_bt1886_inv()

◆ eotf_smpte_st2084()

◆ eotf_smpte_st2084_inv()

◆ eotf_smpte_st428_1()

◆ eotf_smpte_st428_1_inv()

◆ eotf_arib_std_b67()

◆ eotf_arib_std_b67_inv()

Variable Documentation

◆ luma_coefficients

◆ color_primaries

◆ approximate_gamma

◆ trc_funcs

◆ trc_inv_funcs

◆ eotf_funcs

◆ eotf_inv_funcs