#include "libavutil/avassert.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/opt.h"
#include "libavutil/parseutils.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "video.h"

Data Structures
struct	CiescopeContext

struct	ColorSystem

Macros
#define	OFFSET(x) offsetof(CiescopeContext, x)

#define	FLAGS AV_OPT_FLAG_FILTERING_PARAM\|AV_OPT_FLAG_VIDEO_PARAM

#define	C 0.310063, 0.316158

#define	E 1.0/3.0, 1.0/3.0

#define	D50 0.34570, 0.3585

#define	D65 0.312713, 0.329016

#define	GAMMA_REC709 0. /* Rec. 709 */

#define	Sz(x) (((x) * (int)FFMIN(w, h)) / 512)

Enumerations
enum	CieSystem { XYY, UCS, LUV, NB_CIE }

enum	ColorsSystems { NTSCsystem, EBUsystem, SMPTEsystem, SMPTE240Msystem, APPLEsystem, wRGBsystem, CIE1931system, Rec709system, Rec2020system, NB_CS }

Functions
	AVFILTER_DEFINE_CLASS (ciescope)

static int	query_formats (AVFilterContext *ctx)

static int	config_output (AVFilterLink *outlink)

static void	uv_to_xy (double const u, double const v, double const xc, double const yc)

static void	upvp_to_xy (double const up, double const vp, double const xc, double const yc)

static void	xy_to_upvp (double xc, double yc, double const up, double const vp)

static void	xy_to_uv (double xc, double yc, double const u, double const v)

static void	xyz_to_rgb (const double m[3][3], double xc, double yc, double zc, double const r, double const g, double *const b)

static void	invert_matrix3x3 (double in[3][3], double out[3][3])

static void	get_rgb2xyz_matrix (struct ColorSystem system, double m[3][3])

static void	rgb_to_xy (double rc, double gc, double bc, double const x, double const y, double *const z, const double m[3][3])

static int	constrain_rgb (double const r, double const g, double *const b)

static void	gamma_correct (const struct ColorSystem const cs, double const c)

static void	gamma_correct_rgb (const struct ColorSystem const cs, double const r, double const g, double const b)

static void	monochrome_color_location (double waveLength, int w, int h, int cie, int xP, int yP)

static void	find_tongue (uint16_t const pixels, int const w, int const linesize, int const row, int const presentP, int const leftEdgeP, int const rightEdgeP)

static void	draw_line (uint16_t const pixels, int linesize, int x0, int y0, int x1, int y1, int w, int h, const uint16_t const rgbcolor)

static void	draw_rline (uint16_t *const pixels, int linesize, int x0, int y0, int x1, int y1, int w, int h)

static void	tongue_outline (uint16_t *const pixels, int const linesize, int const w, int const h, uint16_t const maxval, int const cie)

static void	fill_in_tongue (uint16_t const pixels, int const linesize, int const w, int const h, uint16_t const maxval, const struct ColorSystem const cs, double const m[3][3], int const cie, int const correct_gamma, float const contrast)

static void	plot_white_point (uint16_t *pixels, int const linesize, int const w, int const h, int const maxval, int const color_system, int const cie)

static int	draw_background (AVFilterContext *ctx)

static void	filter_rgb48 (AVFilterContext ctx, AVFrame in, double cx, double cy, int x, int y)

static void	filter_rgba64 (AVFilterContext ctx, AVFrame in, double cx, double cy, int x, int y)

static void	filter_rgb24 (AVFilterContext ctx, AVFrame in, double cx, double cy, int x, int y)

static void	filter_rgba (AVFilterContext ctx, AVFrame in, double cx, double cy, int x, int y)

static void	filter_xyz (AVFilterContext ctx, AVFrame in, double cx, double cy, int x, int y)

static void	plot_gamuts (uint16_t *pixels, int linesize, int w, int h, int cie, int gamuts)

static int	filter_frame (AVFilterLink inlink, AVFrame in)

static void av_cold	uninit (AVFilterContext *ctx)

static int	config_input (AVFilterLink *inlink)

Variables
static const AVOption	ciescope_options []

static enum AVPixelFormat	in_pix_fmts []

static enum AVPixelFormat	out_pix_fmts []

static float const	spectral_chromaticity [][3]

static const struct ColorSystem	color_systems []

static const AVFilterPad	inputs []

static const AVFilterPad	outputs []

AVFilter	ff_vf_ciescope

Macro Definition Documentation

#define OFFSET ( x ) offsetof(CiescopeContext, x)

Definition at line 72 of file vf_ciescope.c.

#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 73 of file vf_ciescope.c.

#define C 0.310063, 0.316158

Definition at line 647 of file vf_ciescope.c.

#define E 1.0/3.0, 1.0/3.0

Definition at line 648 of file vf_ciescope.c.

#define D50 0.34570, 0.3585

Definition at line 649 of file vf_ciescope.c.

#define D65 0.312713, 0.329016

Definition at line 650 of file vf_ciescope.c.

#define GAMMA_REC709 0. /* Rec. 709 */

Definition at line 658 of file vf_ciescope.c.

#define Sz ( x ) (((x) * (int)FFMIN(w, h)) / 512)

Definition at line 930 of file vf_ciescope.c.

Referenced by plot_white_point().

Enumeration Type Documentation

enum CieSystem

Enumerator
XYY
UCS
LUV
NB_CIE

Definition at line 32 of file vf_ciescope.c.

enum ColorsSystems

Enumerator
NTSCsystem
EBUsystem
SMPTEsystem
SMPTE240Msystem
APPLEsystem
wRGBsystem
CIE1931system
Rec709system
Rec2020system
NB_CS

Definition at line 39 of file vf_ciescope.c.

Function Documentation

AVFILTER_DEFINE_CLASS ( ciescope )

static int query_formats ( AVFilterContext * ctx )

static

Definition at line 135 of file vf_ciescope.c.

static int config_output ( AVFilterLink * outlink )

static

Definition at line 148 of file vf_ciescope.c.

static void uv_to_xy	(	double const	u,
		double const	v,
		double *const	xc,
		double *const	yc
	)

static

Definition at line 708 of file vf_ciescope.c.

Referenced by fill_in_tongue().

static void upvp_to_xy	(	double const	up,
		double const	vp,
		double *const	xc,
		double *const	yc
	)

static

Definition at line 721 of file vf_ciescope.c.

Referenced by fill_in_tongue().

static void xy_to_upvp	(	double	xc,
		double	yc,
		double *const	up,
		double *const	vp
	)

static

Definition at line 734 of file vf_ciescope.c.

Referenced by filter_frame(), monochrome_color_location(), plot_gamuts(), and plot_white_point().

static void xy_to_uv	(	double	xc,
		double	yc,
		double *const	u,
		double *const	v
	)

static

Definition at line 747 of file vf_ciescope.c.

Referenced by filter_frame(), monochrome_color_location(), plot_gamuts(), and plot_white_point().

static void xyz_to_rgb	(	const double	m[3][3],
		double	xc,
		double	yc,
		double	zc,
		double *const	r,
		double *const	g,
		double *const	b
	)

static

Definition at line 760 of file vf_ciescope.c.

Referenced by fill_in_tongue().

static void invert_matrix3x3	(	double	in[3][3],
		double	out[3][3]
	)

static

Definition at line 769 of file vf_ciescope.c.

Referenced by config_input(), and get_rgb2xyz_matrix().

static void get_rgb2xyz_matrix	(	struct ColorSystem	system,
		double	m[3][3]
	)

static

Definition at line 796 of file vf_ciescope.c.

Referenced by config_input().

static void rgb_to_xy	(	double	rc,
		double	gc,
		double	bc,
		double *const	x,
		double *const	y,
		double *const	z,
		const double	m[3][3]
	)

static

Definition at line 830 of file vf_ciescope.c.

Referenced by filter_rgb24(), filter_rgb48(), filter_rgba(), and filter_rgba64().

static int constrain_rgb	(	double *const	r,
		double *const	g,
		double *const	b
	)

static

Definition at line 851 of file vf_ciescope.c.

Referenced by fill_in_tongue().

static void gamma_correct	(	const struct ColorSystem *const	cs,
		double *const	c
	)

static

Definition at line 880 of file vf_ciescope.c.

Referenced by gamma_correct_rgb().

static void gamma_correct_rgb	(	const struct ColorSystem *const	cs,
		double *const	r,
		double *const	g,
		double *const	b
	)

static

Definition at line 916 of file vf_ciescope.c.

Referenced by fill_in_tongue().

static void monochrome_color_location	(	double	waveLength,
		int	w,
		int	h,
		int	cie,
		int *	xP,
		int *	yP
	)

static

Definition at line 933 of file vf_ciescope.c.

Referenced by tongue_outline().

static void find_tongue	(	uint16_t *const	pixels,
		int const	w,
		int const	linesize,
		int const	row,
		int *const	presentP,
		int *const	leftEdgeP,
		int *const	rightEdgeP
	)

static

Definition at line 964 of file vf_ciescope.c.

Referenced by fill_in_tongue().

static void draw_line	(	uint16_t *const	pixels,
		int	linesize,
		int	x0,
		int	y0,
		int	x1,
		int	y1,
		int	w,
		int	h,
		const uint16_t *const	rgbcolor
	)

static

Definition at line 993 of file vf_ciescope.c.

Referenced by tongue_outline().

static void draw_rline	(	uint16_t *const	pixels,
		int	linesize,
		int	x0,
		int	y0,
		int	x1,
		int	y1,
		int	w,
		int	h
	)

static

Definition at line 1025 of file vf_ciescope.c.

Referenced by plot_gamuts(), and plot_white_point().

static void tongue_outline	(	uint16_t *const	pixels,
		int const	linesize,
		int const	w,
		int const	h,
		uint16_t const	maxval,
		int const	cie
	)

static

Definition at line 1057 of file vf_ciescope.c.

Referenced by draw_background().

static void fill_in_tongue	(	uint16_t *const	pixels,
		int const	linesize,
		int const	w,
		int const	h,
		uint16_t const	maxval,
		const struct ColorSystem *const	cs,
		double const	m[3][3],
		int const	cie,
		int const	correct_gamma,
		float const	contrast
	)

static

Definition at line 1088 of file vf_ciescope.c.

Referenced by draw_background().

static void plot_white_point	(	uint16_t *	pixels,
		int const	linesize,
		int const	w,
		int const	h,
		int const	maxval,
		int const	color_system,
		int const	cie
	)

static

Definition at line 1172 of file vf_ciescope.c.

Referenced by filter_frame().

static int draw_background ( AVFilterContext * ctx )

static

Definition at line 1218 of file vf_ciescope.c.

Referenced by filter_frame().

static void filter_rgb48	(	AVFilterContext *	ctx,
		AVFrame *	in,
		double *	cx,
		double *	cy,
		int	x,
		int	y
	)

static

Definition at line 1239 of file vf_ciescope.c.

Referenced by config_input().

static void filter_rgba64	(	AVFilterContext *	ctx,
		AVFrame *	in,
		double *	cx,
		double *	cy,
		int	x,
		int	y
	)

static

Definition at line 1251 of file vf_ciescope.c.

Referenced by config_input().

static void filter_rgb24	(	AVFilterContext *	ctx,
		AVFrame *	in,
		double *	cx,
		double *	cy,
		int	x,
		int	y
	)

static

Definition at line 1263 of file vf_ciescope.c.

Referenced by config_input().

static void filter_rgba	(	AVFilterContext *	ctx,
		AVFrame *	in,
		double *	cx,
		double *	cy,
		int	x,
		int	y
	)

static

Definition at line 1275 of file vf_ciescope.c.

Referenced by config_input().

static void filter_xyz	(	AVFilterContext *	ctx,
		AVFrame *	in,
		double *	cx,
		double *	cy,
		int	x,
		int	y
	)

static

Definition at line 1287 of file vf_ciescope.c.

Referenced by config_input().

static void plot_gamuts	(	uint16_t *	pixels,
		int	linesize,
		int	w,
		int	h,
		int	cie,
		int	gamuts
	)

static

Definition at line 1302 of file vf_ciescope.c.

Referenced by filter_frame().

static int filter_frame	(	AVFilterLink *	inlink,
		AVFrame *	in
	)

static

Definition at line 1352 of file vf_ciescope.c.

static void av_cold uninit ( AVFilterContext * ctx )

static

Definition at line 1444 of file vf_ciescope.c.

static int config_input ( AVFilterLink * inlink )

static

Definition at line 1451 of file vf_ciescope.c.

Variable Documentation

const AVOption ciescope_options[]

static

Definition at line 75 of file vf_ciescope.c.

enum AVPixelFormat in_pix_fmts[]

static

Initial value:

= {
    AV_PIX_FMT_RGB24,
    AV_PIX_FMT_RGBA,
    AV_PIX_FMT_RGB48,
    AV_PIX_FMT_RGBA64,
    AV_PIX_FMT_XYZ12,
    AV_PIX_FMT_NONE
}

Definition at line 121 of file vf_ciescope.c.

Referenced by query_formats().

enum AVPixelFormat out_pix_fmts[]

static

Initial value:

= {
    AV_PIX_FMT_RGBA64,
    AV_PIX_FMT_NONE
}

Definition at line 130 of file vf_ciescope.c.

Referenced by query_formats().

float const spectral_chromaticity[][3]

static

Definition at line 170 of file vf_ciescope.c.

Referenced by monochrome_color_location().

const struct ColorSystem color_systems[]

static

Definition at line 660 of file vf_ciescope.c.

const AVFilterPad inputs[]

static

Initial value:

= {
    {
        .name         = "default",
        .type         = AVMEDIA_TYPE_VIDEO,
        .filter_frame = filter_frame,
        .config_props = config_input,
    },
    { NULL }
}

Definition at line 1484 of file vf_ciescope.c.

const AVFilterPad outputs[]

static

Initial value:

= {
    {
        .name         = "default",
        .type         = AVMEDIA_TYPE_VIDEO,
        .config_props = config_output,
    },
    { NULL }
}

Definition at line 1494 of file vf_ciescope.c.

AVFilter ff_vf_ciescope

Initial value:

= {
    .name          = "ciescope",
    .description   = NULL_IF_CONFIG_SMALL("Video CIE scope."),
    .priv_size     = sizeof(CiescopeContext),
    .priv_class    = &ciescope_class,
    .query_formats = query_formats,
    .uninit        = uninit,
    .inputs        = inputs,
    .outputs       = outputs,
}

Definition at line 1503 of file vf_ciescope.c.

Data Structures

Macros

Enumerations

Functions

Variables

Macro Definition Documentation

Enumeration Type Documentation

Function Documentation

Variable Documentation