vf_colorbalance.c File Reference

#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "drawutils.h"
#include "formats.h"
#include "internal.h"
#include "video.h"

Go to the source code of this file.

Data Structures
struct	ThreadData
	Used for passing data between threads. More...
struct	Range
struct	ColorBalanceContext

Macros
#define	R   0
#define	G   1
#define	B   2
#define	A   3
#define	OFFSET(x)   offsetof(ColorBalanceContext, x)
#define	FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM

Functions
	AVFILTER_DEFINE_CLASS (colorbalance)
static int	query_formats (AVFilterContext *ctx)
static float	get_component (float v, float l, float s, float m, float h)
static float	hfun (float n, float h, float s, float l)
static void	preservel (float *r, float *g, float *b, float l)
static int	color_balance8_p (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	color_balance16_p (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	color_balance8 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	color_balance16 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	config_output (AVFilterLink *outlink)
static int	filter_frame (AVFilterLink *inlink, AVFrame *in)

Variables
static const AVOption	colorbalance_options []
static const AVFilterPad	colorbalance_inputs []
static const AVFilterPad	colorbalance_outputs []
AVFilter	ff_vf_colorbalance

Macro Definition Documentation

R

#define R   0

Definition at line 29 of file vf_colorbalance.c.

G

#define G   1

Definition at line 30 of file vf_colorbalance.c.

B

#define B   2

Definition at line 31 of file vf_colorbalance.c.

A

#define A   3

Definition at line 32 of file vf_colorbalance.c.

OFFSET

#define OFFSET

(

x

)

offsetof(ColorBalanceContext, x)

Definition at line 59 of file vf_colorbalance.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM

Definition at line 60 of file vf_colorbalance.c.

Function Documentation

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

colorbalance

)

query_formats()

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 77 of file vf_colorbalance.c.

get_component()

static float get_component ( float  v, float  l, float  s, float  m, float  h  )

static

Definition at line 101 of file vf_colorbalance.c.

Referenced by color_balance16(), color_balance16_p(), color_balance8(), and color_balance8_p().

hfun()

static float hfun ( float  n, float  h, float  s, float  l  )

static

Definition at line 117 of file vf_colorbalance.c.

Referenced by preservel().

preservel()

static void preservel ( float *  r, float *  g, float *  b, float  l  )

static

Definition at line 125 of file vf_colorbalance.c.

Referenced by color_balance16(), color_balance16_p(), color_balance8(), and color_balance8_p().

color_balance8_p()

static int color_balance8_p ( AVFilterContext *  ctx, void *  arg, int  jobnr, int  nb_jobs  )

static

Definition at line 158 of file vf_colorbalance.c.

Referenced by config_output().

color_balance16_p()

static int color_balance16_p ( AVFilterContext *  ctx, void *  arg, int  jobnr, int  nb_jobs  )

static

Definition at line 211 of file vf_colorbalance.c.

Referenced by config_output().

color_balance8()

static int color_balance8 ( AVFilterContext *  ctx, void *  arg, int  jobnr, int  nb_jobs  )

static

Definition at line 265 of file vf_colorbalance.c.

Referenced by config_output().

color_balance16()

static int color_balance16 ( AVFilterContext *  ctx, void *  arg, int  jobnr, int  nb_jobs  )

static

Definition at line 316 of file vf_colorbalance.c.

Referenced by config_output().

config_output()

static int config_output ( AVFilterLink *  outlink )

static

Definition at line 368 of file vf_colorbalance.c.

filter_frame()

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

static

Definition at line 396 of file vf_colorbalance.c.

Variable Documentation

colorbalance_options

const AVOption colorbalance_options[]

static

Initial value:

= {
    { "rs", "set red shadows",      OFFSET(cyan_red.shadows),         AV_OPT_TYPE_FLOAT, {.dbl=0}, -1, 1, FLAGS },
    { "gs", "set green shadows",    OFFSET(magenta_green.shadows),    AV_OPT_TYPE_FLOAT, {.dbl=0}, -1, 1, FLAGS },
    { "bs", "set blue shadows",     OFFSET(yellow_blue.shadows),      AV_OPT_TYPE_FLOAT, {.dbl=0}, -1, 1, FLAGS },
    { "rm", "set red midtones",     OFFSET(cyan_red.midtones),        AV_OPT_TYPE_FLOAT, {.dbl=0}, -1, 1, FLAGS },
    { "gm", "set green midtones",   OFFSET(magenta_green.midtones),   AV_OPT_TYPE_FLOAT, {.dbl=0}, -1, 1, FLAGS },
    { "bm", "set blue midtones",    OFFSET(yellow_blue.midtones),     AV_OPT_TYPE_FLOAT, {.dbl=0}, -1, 1, FLAGS },
    { "rh", "set red highlights",   OFFSET(cyan_red.highlights),      AV_OPT_TYPE_FLOAT, {.dbl=0}, -1, 1, FLAGS },
    { "gh", "set green highlights", OFFSET(magenta_green.highlights), AV_OPT_TYPE_FLOAT, {.dbl=0}, -1, 1, FLAGS },
    { "bh", "set blue highlights",  OFFSET(yellow_blue.highlights),   AV_OPT_TYPE_FLOAT, {.dbl=0}, -1, 1, FLAGS },
    { "pl", "preserve lightness",   OFFSET(preserve_lightness),       AV_OPT_TYPE_BOOL,  {.i64=0},  0, 1, FLAGS },
    { NULL }
}

Definition at line 61 of file vf_colorbalance.c.

colorbalance_inputs

const AVFilterPad colorbalance_inputs[]

static

Initial value:

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

Definition at line 424 of file vf_colorbalance.c.

colorbalance_outputs

const AVFilterPad colorbalance_outputs[]

static

Initial value:

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

Definition at line 433 of file vf_colorbalance.c.

ff_vf_colorbalance

AVFilter ff_vf_colorbalance

Initial value:

= {
    .name          = "colorbalance",
    .description   = NULL_IF_CONFIG_SMALL("Adjust the color balance."),
    .priv_size     = sizeof(ColorBalanceContext),
    .priv_class    = &colorbalance_class,
    .query_formats = query_formats,
    .inputs        = colorbalance_inputs,
    .outputs       = colorbalance_outputs,
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
    .process_command = ff_filter_process_command,
}

Definition at line 442 of file vf_colorbalance.c.