vf_ciescope.c File Reference

#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"

Go to the source code of this file.

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, DCIP3, 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 const float	spectral_chromaticity [][3]
static const struct ColorSystem	color_systems []
static const AVFilterPad	inputs []
static const AVFilterPad	outputs []
const AVFilter	ff_vf_ciescope

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

offsetof(CiescopeContext, x)

Definition at line 73 of file vf_ciescope.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 74 of file vf_ciescope.c.

C

#define C   0.310063, 0.316158

Definition at line 650 of file vf_ciescope.c.

E

#define E   1.0/3.0, 1.0/3.0

Definition at line 651 of file vf_ciescope.c.

D50

#define D50   0.34570, 0.3585

Definition at line 652 of file vf_ciescope.c.

D65

#define D65   0.312713, 0.329016

Definition at line 653 of file vf_ciescope.c.

GAMMA_REC709

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

Definition at line 661 of file vf_ciescope.c.

Sz

#define Sz

(

x

)

(((x) * (int)FFMIN(w, h)) / 512)

Definition at line 938 of file vf_ciescope.c.

Enumeration Type Documentation

CieSystem

enum CieSystem

Enumerator
XYY
UCS
LUV
NB_CIE

Definition at line 32 of file vf_ciescope.c.

ColorsSystems

enum ColorsSystems

Enumerator
NTSCsystem
EBUsystem
SMPTEsystem
SMPTE240Msystem
APPLEsystem
wRGBsystem
CIE1931system
Rec709system
Rec2020system
DCIP3
NB_CS

Definition at line 39 of file vf_ciescope.c.

Function Documentation

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

ciescope

)

query_formats()

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 138 of file vf_ciescope.c.

config_output()

static int config_output ( AVFilterLink *  outlink )

static

Definition at line 151 of file vf_ciescope.c.

uv_to_xy()

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

static

Definition at line 715 of file vf_ciescope.c.

Referenced by fill_in_tongue().

upvp_to_xy()

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

static

Definition at line 728 of file vf_ciescope.c.

Referenced by fill_in_tongue().

xy_to_upvp()

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

static

Definition at line 741 of file vf_ciescope.c.

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

xy_to_uv()

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

static

Definition at line 754 of file vf_ciescope.c.

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

xyz_to_rgb()

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 767 of file vf_ciescope.c.

Referenced by fill_in_tongue().

invert_matrix3x3()

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

static

Definition at line 776 of file vf_ciescope.c.

Referenced by config_input(), and get_rgb2xyz_matrix().

get_rgb2xyz_matrix()

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

static

Definition at line 803 of file vf_ciescope.c.

Referenced by config_input().

rgb_to_xy()

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 837 of file vf_ciescope.c.

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

constrain_rgb()

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

static

Definition at line 859 of file vf_ciescope.c.

Referenced by fill_in_tongue().

gamma_correct()

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

static

Definition at line 888 of file vf_ciescope.c.

Referenced by gamma_correct_rgb().

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 924 of file vf_ciescope.c.

Referenced by fill_in_tongue().

monochrome_color_location()

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

static

Definition at line 941 of file vf_ciescope.c.

Referenced by tongue_outline().

find_tongue()

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 972 of file vf_ciescope.c.

Referenced by fill_in_tongue().

draw_line()

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 1001 of file vf_ciescope.c.

Referenced by tongue_outline().

draw_rline()

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 1033 of file vf_ciescope.c.

Referenced by plot_gamuts(), and plot_white_point().

tongue_outline()

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 1065 of file vf_ciescope.c.

Referenced by draw_background().

fill_in_tongue()

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 1096 of file vf_ciescope.c.

Referenced by draw_background().

plot_white_point()

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 1180 of file vf_ciescope.c.

Referenced by filter_frame().

draw_background()

static int draw_background ( AVFilterContext *  ctx )

static

Definition at line 1222 of file vf_ciescope.c.

Referenced by filter_frame().

filter_rgb48()

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

static

Definition at line 1243 of file vf_ciescope.c.

Referenced by config_input().

filter_rgba64()

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

static

Definition at line 1255 of file vf_ciescope.c.

Referenced by config_input().

filter_rgb24()

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

static

Definition at line 1267 of file vf_ciescope.c.

Referenced by config_input().

filter_rgba()

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

static

Definition at line 1279 of file vf_ciescope.c.

Referenced by config_input().

filter_xyz()

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

static

Definition at line 1291 of file vf_ciescope.c.

Referenced by config_input().

plot_gamuts()

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

static

Definition at line 1306 of file vf_ciescope.c.

Referenced by filter_frame().

filter_frame()

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

static

Definition at line 1356 of file vf_ciescope.c.

uninit()

static void av_cold uninit ( AVFilterContext *  ctx )

static

Definition at line 1448 of file vf_ciescope.c.

config_input()

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 1455 of file vf_ciescope.c.

Variable Documentation

ciescope_options

const AVOption ciescope_options[]

static

Definition at line 76 of file vf_ciescope.c.

in_pix_fmts

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 124 of file vf_ciescope.c.

Referenced by query_formats().

out_pix_fmts

enum AVPixelFormat out_pix_fmts[]

static

Initial value:

= {
    AV_PIX_FMT_RGBA64,
    AV_PIX_FMT_NONE
}

Definition at line 133 of file vf_ciescope.c.

Referenced by overlay_qsv_query_formats(), and query_formats().

spectral_chromaticity

const float spectral_chromaticity[][3]

static

Definition at line 173 of file vf_ciescope.c.

Referenced by monochrome_color_location().

color_systems

const struct ColorSystem color_systems[]

static

Definition at line 663 of file vf_ciescope.c.

Referenced by config_input(), draw_background(), plot_gamuts(), and plot_white_point().

inputs

const AVFilterPad inputs[]

static

Initial value:

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

Definition at line 1488 of file vf_ciescope.c.

outputs

const AVFilterPad outputs[]

static

Initial value:

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

Definition at line 1497 of file vf_ciescope.c.

ff_vf_ciescope

const AVFilter ff_vf_ciescope

Initial value:

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

Definition at line 1505 of file vf_ciescope.c.