vf_colorlevels.c File Reference

#include "libavutil/imgutils.h"
#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	Range
struct	ColorLevelsContext

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

Functions
	AVFILTER_DEFINE_CLASS (colorlevels)
static int	query_formats (AVFilterContext *ctx)
static int	config_input (AVFilterLink *inlink)
static int	filter_frame (AVFilterLink *inlink, AVFrame *in)

Variables
static const AVOption	colorlevels_options []
static const AVFilterPad	colorlevels_inputs []
static const AVFilterPad	colorlevels_outputs []
AVFilter	ff_vf_colorlevels

Macro Definition Documentation

#define R   0

Definition at line 30 of file vf_colorlevels.c.

#define G   1

Definition at line 31 of file vf_colorlevels.c.

#define B   2

Definition at line 32 of file vf_colorlevels.c.

#define A   3

Definition at line 33 of file vf_colorlevels.c.

#define OFFSET

(

x

)

offsetof(ColorLevelsContext, x)

Definition at line 50 of file vf_colorlevels.c.

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 51 of file vf_colorlevels.c.

Function Documentation

AVFILTER_DEFINE_CLASS

(

colorlevels

)

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 74 of file vf_colorlevels.c.

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 91 of file vf_colorlevels.c.

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

static

Definition at line 106 of file vf_colorlevels.c.

Variable Documentation

const AVOption colorlevels_options[]

static

Initial value:

= {
    { "rimin", "set input red black point",    OFFSET(range[R].in_min),  AV_OPT_TYPE_DOUBLE, {.dbl=0}, -1, 1, FLAGS },
    { "gimin", "set input green black point",  OFFSET(range[G].in_min),  AV_OPT_TYPE_DOUBLE, {.dbl=0}, -1, 1, FLAGS },
    { "bimin", "set input blue black point",   OFFSET(range[B].in_min),  AV_OPT_TYPE_DOUBLE, {.dbl=0}, -1, 1, FLAGS },
    { "aimin", "set input alpha black point",  OFFSET(range[A].in_min),  AV_OPT_TYPE_DOUBLE, {.dbl=0}, -1, 1, FLAGS },
    { "rimax", "set input red white point",    OFFSET(range[R].in_max),  AV_OPT_TYPE_DOUBLE, {.dbl=1}, -1, 1, FLAGS },
    { "gimax", "set input green white point",  OFFSET(range[G].in_max),  AV_OPT_TYPE_DOUBLE, {.dbl=1}, -1, 1, FLAGS },
    { "bimax", "set input blue white point",   OFFSET(range[B].in_max),  AV_OPT_TYPE_DOUBLE, {.dbl=1}, -1, 1, FLAGS },
    { "aimax", "set input alpha white point",  OFFSET(range[A].in_max),  AV_OPT_TYPE_DOUBLE, {.dbl=1}, -1, 1, FLAGS },
    { "romin", "set output red black point",   OFFSET(range[R].out_min), AV_OPT_TYPE_DOUBLE, {.dbl=0},  0, 1, FLAGS },
    { "gomin", "set output green black point", OFFSET(range[G].out_min), AV_OPT_TYPE_DOUBLE, {.dbl=0},  0, 1, FLAGS },
    { "bomin", "set output blue black point",  OFFSET(range[B].out_min), AV_OPT_TYPE_DOUBLE, {.dbl=0},  0, 1, FLAGS },
    { "aomin", "set output alpha black point", OFFSET(range[A].out_min), AV_OPT_TYPE_DOUBLE, {.dbl=0},  0, 1, FLAGS },
    { "romax", "set output red white point",   OFFSET(range[R].out_max), AV_OPT_TYPE_DOUBLE, {.dbl=1},  0, 1, FLAGS },
    { "gomax", "set output green white point", OFFSET(range[G].out_max), AV_OPT_TYPE_DOUBLE, {.dbl=1},  0, 1, FLAGS },
    { "bomax", "set output blue white point",  OFFSET(range[B].out_max), AV_OPT_TYPE_DOUBLE, {.dbl=1},  0, 1, FLAGS },
    { "aomax", "set output alpha white point", OFFSET(range[A].out_max), AV_OPT_TYPE_DOUBLE, {.dbl=1},  0, 1, FLAGS },
    { NULL }
}

Definition at line 52 of file vf_colorlevels.c.

const AVFilterPad colorlevels_inputs[]

static

Initial value:

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

Definition at line 227 of file vf_colorlevels.c.

const AVFilterPad colorlevels_outputs[]

static

Initial value:

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

Definition at line 237 of file vf_colorlevels.c.

AVFilter ff_vf_colorlevels

Initial value:

= {
    .name          = "colorlevels",
    .description   = NULL_IF_CONFIG_SMALL("Adjust the color levels."),
    .priv_size     = sizeof(ColorLevelsContext),
    .priv_class    = &colorlevels_class,
    .query_formats = query_formats,
    .inputs        = colorlevels_inputs,
    .outputs       = colorlevels_outputs,
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
}

Definition at line 245 of file vf_colorlevels.c.