vf_colorcorrect.c File Reference

#include <float.h>
#include "libavutil/opt.h"
#include "libavutil/imgutils.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "video.h"

Go to the source code of this file.

Data Structures
struct	ColorCorrectContext

Macros
#define	PROCESS()
#define	OFFSET(x)   offsetof(ColorCorrectContext, x)
#define	VF   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM

Functions
static int	colorcorrect_slice8 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	colorcorrect_slice16 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	filter_frame (AVFilterLink *inlink, AVFrame *frame)
static av_cold int	query_formats (AVFilterContext *ctx)
static av_cold int	config_input (AVFilterLink *inlink)
	AVFILTER_DEFINE_CLASS (colorcorrect)

Variables
static const AVFilterPad	colorcorrect_inputs []
static const AVFilterPad	colorcorrect_outputs []
static const AVOption	colorcorrect_options []
AVFilter	ff_vf_colorcorrect

Macro Definition Documentation

PROCESS

#define PROCESS

(

)

Value:

    float y = yptr[x] * imax;                \
    float u = uptr[x] * imax - .5f;          \
    float v = vptr[x] * imax - .5f;          \
    float ny, nu, nv;                        \
                                             \
    ny = y;                                  \
    nu = saturation * (u + y * bd + bl);     \
    nv = saturation * (v + y * rd + rl);

Definition at line 43 of file vf_colorcorrect.c.

OFFSET

#define OFFSET

(

x

)

offsetof(ColorCorrectContext, x)

Definition at line 193 of file vf_colorcorrect.c.

VF

#define VF   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM

Definition at line 194 of file vf_colorcorrect.c.

Function Documentation

colorcorrect_slice8()

static int colorcorrect_slice8 ( AVFilterContext *  ctx, void *  arg, int  jobnr, int  nb_jobs  )

static

Definition at line 53 of file vf_colorcorrect.c.

Referenced by config_input().

colorcorrect_slice16()

static int colorcorrect_slice16 ( AVFilterContext *  ctx, void *  arg, int  jobnr, int  nb_jobs  )

static

Definition at line 93 of file vf_colorcorrect.c.

Referenced by config_input().

filter_frame()

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

static

Definition at line 133 of file vf_colorcorrect.c.

query_formats()

static av_cold int query_formats ( AVFilterContext *  ctx )

static

Definition at line 144 of file vf_colorcorrect.c.

config_input()

static av_cold int config_input ( AVFilterLink *  inlink )

static

Definition at line 162 of file vf_colorcorrect.c.

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

colorcorrect

)

Variable Documentation

colorcorrect_inputs

const AVFilterPad colorcorrect_inputs[]

static

Initial value:

= {
    {
        .name           = "default",
        .type           = AVMEDIA_TYPE_VIDEO,
        .needs_writable = 1,
        .filter_frame   = filter_frame,
        .config_props   = config_input,
    },
    { NULL }
}

Definition at line 174 of file vf_colorcorrect.c.

colorcorrect_outputs

const AVFilterPad colorcorrect_outputs[]

static

Initial value:

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

Definition at line 185 of file vf_colorcorrect.c.

colorcorrect_options

const AVOption colorcorrect_options[]

static

Initial value:

= {
    { "rl", "set the red shadow spot",              OFFSET(rl), AV_OPT_TYPE_FLOAT, {.dbl=0}, -1, 1, VF },
    { "bl", "set the blue shadow spot",             OFFSET(bl), AV_OPT_TYPE_FLOAT, {.dbl=0}, -1, 1, VF },
    { "rh", "set the red highlight spot",           OFFSET(rh), AV_OPT_TYPE_FLOAT, {.dbl=0}, -1, 1, VF },
    { "bh", "set the blue highlight spot",          OFFSET(bh), AV_OPT_TYPE_FLOAT, {.dbl=0}, -1, 1, VF },
    { "saturation", "set the amount of saturation", OFFSET(saturation), AV_OPT_TYPE_FLOAT, {.dbl=1}, -3, 3, VF },
    { NULL }
}

Definition at line 196 of file vf_colorcorrect.c.

ff_vf_colorcorrect

AVFilter ff_vf_colorcorrect

Initial value:

= {
    .name          = "colorcorrect",
    .description   = NULL_IF_CONFIG_SMALL("Adjust color white balance selectively for blacks and whites."),
    .priv_size     = sizeof(ColorCorrectContext),
    .priv_class    = &colorcorrect_class,
    .query_formats = query_formats,
    .inputs        = colorcorrect_inputs,
    .outputs       = colorcorrect_outputs,
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
    .process_command = ff_filter_process_command,
}

Definition at line 207 of file vf_colorcorrect.c.