vf_exposure.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	ExposureContext

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

Functions
static int	exposure_slice (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	filter_frame (AVFilterLink *inlink, AVFrame *frame)
static av_cold int	config_input (AVFilterLink *inlink)
	AVFILTER_DEFINE_CLASS (exposure)

Variables
static const AVFilterPad	exposure_inputs []
static const AVFilterPad	exposure_outputs []
static const AVOption	exposure_options []
const AVFilter	ff_vf_exposure

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

offsetof(ExposureContext, x)

Definition at line 105 of file vf_exposure.c.

VF

#define VF   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM

Definition at line 106 of file vf_exposure.c.

Function Documentation

exposure_slice()

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

static

Definition at line 41 of file vf_exposure.c.

Referenced by config_input().

filter_frame()

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

static

Definition at line 66 of file vf_exposure.c.

config_input()

static av_cold int config_input ( AVFilterLink *  inlink )

static

Definition at line 78 of file vf_exposure.c.

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

exposure

)

Variable Documentation

exposure_inputs

const AVFilterPad exposure_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 88 of file vf_exposure.c.

exposure_outputs

const AVFilterPad exposure_outputs[]

static

Initial value:

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

Definition at line 98 of file vf_exposure.c.

exposure_options

const AVOption exposure_options[]

static

Initial value:

= {
    { "exposure", "set the exposure correction",    OFFSET(exposure), AV_OPT_TYPE_FLOAT, {.dbl=0}, -3, 3, VF },
    { "black",    "set the black level correction", OFFSET(black),    AV_OPT_TYPE_FLOAT, {.dbl=0}, -1, 1, VF },
    { NULL }
}

Definition at line 108 of file vf_exposure.c.

ff_vf_exposure

const AVFilter ff_vf_exposure

Initial value:

= {
    .name          = "exposure",
    .description   = NULL_IF_CONFIG_SMALL("Adjust exposure of the video stream."),
    .priv_size     = sizeof(ExposureContext),
    .priv_class    = &exposure_class,
    FILTER_INPUTS(exposure_inputs),
    FILTER_OUTPUTS(exposure_outputs),
    FILTER_PIXFMTS(AV_PIX_FMT_GBRPF32, AV_PIX_FMT_GBRAPF32),
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
    .process_command = ff_filter_process_command,
}

Definition at line 116 of file vf_exposure.c.