csputils.h File Reference

#include <stdint.h>
#include <stdbool.h>
#include <math.h>
#include "libavutil/attributes.h"
#include "libavutil/common.h"
#include "libavutil/csp.h"
#include "libavutil/pixfmt.h"

Go to the source code of this file.

Data Structures
struct	SwsMatrix3x3
struct	v3u8_t
struct	v2u16_t
struct	v3u16_t

Macros
#define	fmixf(a, b, x)   ((b) * (x) + (a) * (1 - (x)))

Enumerations
enum	{ PQ_LUT_SIZE = 1024 }

Functions
static float	smoothstepf (float edge0, float edge1, float x)
void	ff_sws_matrix3x3_mul (SwsMatrix3x3 *a, const SwsMatrix3x3 *b)
void	ff_sws_matrix3x3_invert (SwsMatrix3x3 *mat)
void	ff_sws_matrix3x3_apply (const SwsMatrix3x3 *mat, float vec[3])
SwsMatrix3x3	ff_sws_ipt_rgb2lms (const AVColorPrimariesDesc *prim)
SwsMatrix3x3	ff_sws_ipt_lms2rgb (const AVColorPrimariesDesc *prim)
SwsMatrix3x3	ff_sws_rgb2xyz (const AVColorPrimariesDesc *prim)
SwsMatrix3x3	ff_sws_xyz2rgb (const AVColorPrimariesDesc *prim)
SwsMatrix3x3	ff_sws_get_adaptation (const AVPrimaryCoefficients *prim, AVWhitepointCoefficients from, AVWhitepointCoefficients to)
static float	pq_eotf (float x)
static float	pq_oetf (float x)
bool	ff_prim_superset (const AVPrimaryCoefficients *a, const AVPrimaryCoefficients *b)
	Returns true if 'b' is entirely contained in 'a'. More...

Variables
static const float	PQ_M1 = 2610./4096 * 1./4
static const float	PQ_M2 = 2523./4096 * 128
static const float	PQ_C1 = 3424./4096
static const float	PQ_C2 = 2413./4096 * 32
static const float	PQ_C3 = 2392./4096 * 32
const float	ff_pq_eotf_lut [PQ_LUT_SIZE+1]

Macro Definition Documentation

fmixf

#define fmixf	(		a,
			b,
			x
	)		((b) * (x) + (a) * (1 - (x)))

Definition at line 35 of file csputils.h.

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
PQ_LUT_SIZE

Definition at line 87 of file csputils.h.

Function Documentation

smoothstepf()

static float smoothstepf ( float  edge0, float  edge1, float  x  )

inlinestatic

Definition at line 37 of file csputils.h.

Referenced by perceptual(), and st2094_pick_knee().

ff_sws_matrix3x3_mul()

void ff_sws_matrix3x3_mul	(	SwsMatrix3x3 *	a,
		const SwsMatrix3x3 *	b
	)

Definition at line 26 of file csputils.c.

Referenced by apply_chromatic_adaptation(), ff_sws_get_adaptation(), and ff_sws_ipt_rgb2lms().

ff_sws_matrix3x3_invert()

void ff_sws_matrix3x3_invert

(

SwsMatrix3x3 *

mat

)

Definition at line 39 of file csputils.c.

Referenced by ff_sws_ipt_lms2rgb(), ff_sws_rgb2xyz(), and ff_sws_xyz2rgb().

ff_sws_matrix3x3_apply()

void ff_sws_matrix3x3_apply	(	const SwsMatrix3x3 *	mat,
		float	vec[3]
	)

Definition at line 72 of file csputils.c.

Referenced by absolute().

ff_sws_ipt_rgb2lms()

SwsMatrix3x3 ff_sws_ipt_rgb2lms

(

const AVColorPrimariesDesc *

prim

)

Definition at line 219 of file csputils.c.

Referenced by ff_sws_ipt_lms2rgb(), and gamut_from_colorspace().

ff_sws_ipt_lms2rgb()

SwsMatrix3x3 ff_sws_ipt_lms2rgb

(

const AVColorPrimariesDesc *

prim

)

Definition at line 239 of file csputils.c.

Referenced by gamut_from_colorspace().

ff_sws_rgb2xyz()

SwsMatrix3x3 ff_sws_rgb2xyz

(

const AVColorPrimariesDesc *

prim

)

Definition at line 92 of file csputils.c.

Referenced by ff_sws_get_adaptation(), ff_sws_ipt_rgb2lms(), and ff_sws_xyz2rgb().

ff_sws_xyz2rgb()

SwsMatrix3x3 ff_sws_xyz2rgb

(

const AVColorPrimariesDesc *

prim

)

Definition at line 130 of file csputils.c.

Referenced by ff_sws_get_adaptation().

ff_sws_get_adaptation()

SwsMatrix3x3 ff_sws_get_adaptation	(	const AVPrimaryCoefficients *	prim,
		AVWhitepointCoefficients	from,
		AVWhitepointCoefficients	to
	)

Definition at line 191 of file csputils.c.

Referenced by ff_sws_color_map_generate_dynamic().

pq_eotf()

static float pq_eotf ( float  x )

inlinestatic

Definition at line 90 of file csputils.h.

Referenced by ingamut(), and ipt2rgb().

pq_oetf()

static float pq_oetf ( float  x )

inlinestatic

Definition at line 98 of file csputils.h.

Referenced by gamut_from_colorspace(), and rgb2ipt().

ff_prim_superset()

bool ff_prim_superset	(	const AVPrimaryCoefficients *	a,
		const AVPrimaryCoefficients *	b
	)

Returns true if 'b' is entirely contained in 'a'.

Useful for figuring out if colorimetric clipping will occur or not.

Definition at line 268 of file csputils.c.

Referenced by ff_sws_color_map_noop().

Variable Documentation

PQ_M1

const float PQ_M1 = 2610./4096 * 1./4

static

Definition at line 81 of file csputils.h.

Referenced by pq_oetf().

PQ_M2

const float PQ_M2 = 2523./4096 * 128

static

Definition at line 82 of file csputils.h.

Referenced by pq_oetf().

PQ_C1

const float PQ_C1 = 3424./4096

static

Definition at line 83 of file csputils.h.

Referenced by pq_oetf().

PQ_C2

const float PQ_C2 = 2413./4096 * 32

static

Definition at line 84 of file csputils.h.

Referenced by pq_oetf().

PQ_C3

const float PQ_C3 = 2392./4096 * 32

static

Definition at line 85 of file csputils.h.

Referenced by pq_oetf().

ff_pq_eotf_lut

const float ff_pq_eotf_lut[PQ_LUT_SIZE+1]

Definition at line 275 of file csputils.c.

Referenced by pq_eotf().