vf_lumakey.c File Reference

#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	LumakeyContext

Macros
#define	OFFSET(x)   offsetof(LumakeyContext, x)
#define	FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Functions
static int	do_lumakey_slice8 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	do_lumakey_slice16 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	config_input (AVFilterLink *inlink)
static int	filter_frame (AVFilterLink *link, AVFrame *frame)
static av_cold int	query_formats (AVFilterContext *ctx)
	AVFILTER_DEFINE_CLASS (lumakey)

Variables
static const AVFilterPad	lumakey_inputs []
static const AVFilterPad	lumakey_outputs []
static const AVOption	lumakey_options []
AVFilter	ff_vf_lumakey

Macro Definition Documentation

#define OFFSET

(

x

)

offsetof(LumakeyContext, x)

Definition at line 180 of file vf_lumakey.c.

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 181 of file vf_lumakey.c.

Function Documentation

static int do_lumakey_slice8 ( AVFilterContext *  ctx, void *  arg, int  jobnr, int  nb_jobs  )

static

Definition at line 42 of file vf_lumakey.c.

Referenced by config_input().

static int do_lumakey_slice16 ( AVFilterContext *  ctx, void *  arg, int  jobnr, int  nb_jobs  )

static

Definition at line 74 of file vf_lumakey.c.

Referenced by config_input().

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 107 of file vf_lumakey.c.

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

static

Definition at line 129 of file vf_lumakey.c.

static av_cold int query_formats ( AVFilterContext *  ctx )

static

Definition at line 144 of file vf_lumakey.c.

AVFILTER_DEFINE_CLASS

(

lumakey

)

Variable Documentation

const AVFilterPad lumakey_inputs[]

static

Initial value:

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

Definition at line 162 of file vf_lumakey.c.

const AVFilterPad lumakey_outputs[]

static

Initial value:

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

Definition at line 172 of file vf_lumakey.c.

const AVOption lumakey_options[]

static

Initial value:

= {
    { "threshold", "set the threshold value", OFFSET(threshold), AV_OPT_TYPE_INT, {.i64=0}, 0, UINT16_MAX, FLAGS },
    { "tolerance", "set the tolerance value", OFFSET(tolerance), AV_OPT_TYPE_INT, {.i64=1}, 0, UINT16_MAX, FLAGS },
    { "softness",  "set the softness value",  OFFSET(softness),  AV_OPT_TYPE_INT, {.i64=0}, 0, UINT16_MAX, FLAGS },
    { NULL }
}

Definition at line 183 of file vf_lumakey.c.

AVFilter ff_vf_lumakey

Initial value:

= {
    .name          = "lumakey",
    .description   = NULL_IF_CONFIG_SMALL("Turns a certain luma into transparency."),
    .priv_size     = sizeof(LumakeyContext),
    .priv_class    = &lumakey_class,
    .query_formats = query_formats,
    .inputs        = lumakey_inputs,
    .outputs       = lumakey_outputs,
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
}

Definition at line 192 of file vf_lumakey.c.