vf_colorbalance.c File Reference

#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "drawutils.h"
#include "filters.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)
#define	FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM

Functions
	AVFILTER_DEFINE_CLASS (colorbalance)
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 enum AVPixelFormat	pix_fmts []
static const AVFilterPad	colorbalance_inputs []
static const AVFilterPad	colorbalance_outputs []
const FFFilter	ff_vf_colorbalance

Macro Definition Documentation

R

#define R   0

Definition at line 28 of file vf_colorbalance.c.

G

#define G   1

Definition at line 29 of file vf_colorbalance.c.

B

#define B   2

Definition at line 30 of file vf_colorbalance.c.

A

#define A   3

Definition at line 31 of file vf_colorbalance.c.

OFFSET

#define OFFSET

(

x

)

Value:

offsetof(ColorBalanceContext, x)

Definition at line 58 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 59 of file vf_colorbalance.c.

Function Documentation

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

colorbalance

)

get_component()

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

static

Definition at line 93 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 109 of file vf_colorbalance.c.

Referenced by preservel().

preservel()

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

static

Definition at line 117 of file vf_colorbalance.c.

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

color_balance8_p()

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

static

Definition at line 150 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 203 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 257 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 308 of file vf_colorbalance.c.

Referenced by config_output().

config_output()

static int config_output ( AVFilterLink * outlink )

static

Definition at line 360 of file vf_colorbalance.c.

filter_frame()

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

static

Definition at line 388 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 60 of file vf_colorbalance.c.

pix_fmts

enum AVPixelFormat pix_fmts[]

static

Initial value:

= {
    AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24,
    AV_PIX_FMT_RGBA,  AV_PIX_FMT_BGRA,
    AV_PIX_FMT_ABGR,  AV_PIX_FMT_ARGB,
    AV_PIX_FMT_0BGR,  AV_PIX_FMT_0RGB,
    AV_PIX_FMT_RGB0,  AV_PIX_FMT_BGR0,
    AV_PIX_FMT_RGB48,  AV_PIX_FMT_BGR48,
    AV_PIX_FMT_RGBA64, AV_PIX_FMT_BGRA64,
    AV_PIX_FMT_GBRP,   AV_PIX_FMT_GBRAP,
    AV_PIX_FMT_GBRP9,
    AV_PIX_FMT_GBRP10, AV_PIX_FMT_GBRAP10,
    AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRAP12,
    AV_PIX_FMT_GBRP14,
    AV_PIX_FMT_GBRP16, AV_PIX_FMT_GBRAP16,
    AV_PIX_FMT_NONE
}

Definition at line 76 of file vf_colorbalance.c.

colorbalance_inputs

const AVFilterPad colorbalance_inputs[]

static

Initial value:

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

Definition at line 417 of file vf_colorbalance.c.

colorbalance_outputs

const AVFilterPad colorbalance_outputs[]

static

Initial value:

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

Definition at line 425 of file vf_colorbalance.c.

ff_vf_colorbalance

const FFFilter ff_vf_colorbalance

Initial value:

= {
    .p.name        = "colorbalance",
    .p.description = NULL_IF_CONFIG_SMALL("Adjust the color balance."),
    .p.priv_class  = &colorbalance_class,
    .p.flags       = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
    .priv_size     = sizeof(ColorBalanceContext),
    FILTER_INPUTS(colorbalance_inputs),
    FILTER_OUTPUTS(colorbalance_outputs),
    FILTER_PIXFMTS_ARRAY(pix_fmts),
    .process_command = ff_filter_process_command,
}

Definition at line 433 of file vf_colorbalance.c.