vf_colorcontrast.c File Reference

#include <float.h>
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "drawutils.h"
#include "internal.h"
#include "video.h"

Go to the source code of this file.

Data Structures
struct	ColorContrastContext

Macros
#define	R   0
#define	G   1
#define	B   2
#define	PROCESS(max)
#define	OFFSET(x)   offsetof(ColorContrastContext, x)
#define	VF   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM

Functions
static float	lerpf (float v0, float v1, float f)
static int	colorcontrast_slice8 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	colorcontrast_slice16 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	colorcontrast_slice8p (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	colorcontrast_slice16p (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	filter_frame (AVFilterLink *link, AVFrame *frame)
static av_cold int	config_input (AVFilterLink *inlink)
	AVFILTER_DEFINE_CLASS (colorcontrast)

Variables
static enum AVPixelFormat	pixel_fmts []
static const AVFilterPad	colorcontrast_inputs []
static const AVOption	colorcontrast_options []
const AVFilter	ff_vf_colorcontrast

Macro Definition Documentation

R

#define R   0

Definition at line 30 of file vf_colorcontrast.c.

G

#define G   1

Definition at line 31 of file vf_colorcontrast.c.

B

#define B   2

Definition at line 32 of file vf_colorcontrast.c.

PROCESS

#define PROCESS

(

max

)

Definition at line 54 of file vf_colorcontrast.c.

OFFSET

#define OFFSET

(

x

)

offsetof(ColorContrastContext, x)

Definition at line 361 of file vf_colorcontrast.c.

VF

#define VF   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM

Definition at line 362 of file vf_colorcontrast.c.

Function Documentation

lerpf()

static float lerpf ( float  v0, float  v1, float  f  )

inlinestatic

Definition at line 49 of file vf_colorcontrast.c.

colorcontrast_slice8()

static int colorcontrast_slice8 ( AVFilterContext *  ctx, void *  arg, int  jobnr, int  nb_jobs  )

static

Definition at line 91 of file vf_colorcontrast.c.

Referenced by config_input().

colorcontrast_slice16()

static int colorcontrast_slice16 ( AVFilterContext *  ctx, void *  arg, int  jobnr, int  nb_jobs  )

static

Definition at line 143 of file vf_colorcontrast.c.

Referenced by config_input().

colorcontrast_slice8p()

static int colorcontrast_slice8p ( AVFilterContext *  ctx, void *  arg, int  jobnr, int  nb_jobs  )

static

Definition at line 197 of file vf_colorcontrast.c.

Referenced by config_input().

colorcontrast_slice16p()

static int colorcontrast_slice16p ( AVFilterContext *  ctx, void *  arg, int  jobnr, int  nb_jobs  )

static

Definition at line 247 of file vf_colorcontrast.c.

Referenced by config_input().

filter_frame()

static int filter_frame ( AVFilterLink *  link, AVFrame *  frame  )

static

Definition at line 299 of file vf_colorcontrast.c.

config_input()

static av_cold int config_input ( AVFilterLink *  inlink )

static

Definition at line 327 of file vf_colorcontrast.c.

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

colorcontrast

)

Variable Documentation

pixel_fmts

enum AVPixelFormat pixel_fmts[]

static

Initial value:

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

Definition at line 312 of file vf_colorcontrast.c.

colorcontrast_inputs

const AVFilterPad colorcontrast_inputs[]

static

Initial value:

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

Definition at line 351 of file vf_colorcontrast.c.

colorcontrast_options

const AVOption colorcontrast_options[]

static

Initial value:

= {
    { "rc",  "set the red-cyan contrast",      OFFSET(rc),  AV_OPT_TYPE_FLOAT, {.dbl=0}, -1, 1, VF },
    { "gm",  "set the green-magenta contrast", OFFSET(gm),  AV_OPT_TYPE_FLOAT, {.dbl=0}, -1, 1, VF },
    { "by",  "set the blue-yellow contrast",   OFFSET(by),  AV_OPT_TYPE_FLOAT, {.dbl=0}, -1, 1, VF },
    { "rcw", "set the red-cyan weight",        OFFSET(rcw), AV_OPT_TYPE_FLOAT, {.dbl=0},  0, 1, VF },
    { "gmw", "set the green-magenta weight",   OFFSET(gmw), AV_OPT_TYPE_FLOAT, {.dbl=0},  0, 1, VF },
    { "byw", "set the blue-yellow weight",     OFFSET(byw), AV_OPT_TYPE_FLOAT, {.dbl=0},  0, 1, VF },
    { "pl",  "set the amount of preserving lightness", OFFSET(preserve), AV_OPT_TYPE_FLOAT, {.dbl=0}, 0, 1, VF },
    { NULL }
}

Definition at line 364 of file vf_colorcontrast.c.

ff_vf_colorcontrast

const AVFilter ff_vf_colorcontrast

Initial value:

= {
    .name          = "colorcontrast",
    .description   = NULL_IF_CONFIG_SMALL("Adjust color contrast between RGB components."),
    .priv_size     = sizeof(ColorContrastContext),
    .priv_class    = &colorcontrast_class,
    FILTER_INPUTS(colorcontrast_inputs),
    FILTER_OUTPUTS(ff_video_default_filterpad),
    FILTER_PIXFMTS_ARRAY(pixel_fmts),
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
    .process_command = ff_filter_process_command,
}

Definition at line 377 of file vf_colorcontrast.c.