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|AV_OPT_FLAG_RUNTIME_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 int	process_command (AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
	AVFILTER_DEFINE_CLASS (lumakey)

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

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

offsetof(LumakeyContext, x)

Definition at line 183 of file vf_lumakey.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM

Definition at line 184 of file vf_lumakey.c.

Function Documentation

do_lumakey_slice8()

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

static

Definition at line 43 of file vf_lumakey.c.

Referenced by config_input().

do_lumakey_slice16()

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

static

Definition at line 75 of file vf_lumakey.c.

Referenced by config_input().

config_input()

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 108 of file vf_lumakey.c.

Referenced by process_command().

filter_frame()

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

static

Definition at line 132 of file vf_lumakey.c.

process_command()

static int process_command ( AVFilterContext *  ctx, const char *  cmd, const char *  args, char *  res, int  res_len, int  flags  )

static

Definition at line 154 of file vf_lumakey.c.

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

lumakey

)

Variable Documentation

pixel_fmts

enum AVPixelFormat pixel_fmts[]

static

Initial value:

= {
    AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA420P,
    AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA420P9,
    AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA420P10,
    AV_PIX_FMT_YUVA444P12, AV_PIX_FMT_YUVA422P12,
    AV_PIX_FMT_YUVA444P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA420P16,
    AV_PIX_FMT_NONE
}

Definition at line 145 of file vf_lumakey.c.

lumakey_inputs

const AVFilterPad lumakey_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 166 of file vf_lumakey.c.

lumakey_outputs

const AVFilterPad lumakey_outputs[]

static

Initial value:

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

Definition at line 176 of file vf_lumakey.c.

lumakey_options

const AVOption lumakey_options[]

static

Initial value:

= {
    { "threshold", "set the threshold value", OFFSET(threshold), AV_OPT_TYPE_DOUBLE, {.dbl=0},    0, 1, FLAGS },
    { "tolerance", "set the tolerance value", OFFSET(tolerance), AV_OPT_TYPE_DOUBLE, {.dbl=0.01}, 0, 1, FLAGS },
    { "softness",  "set the softness value",  OFFSET(softness),  AV_OPT_TYPE_DOUBLE, {.dbl=0},    0, 1, FLAGS },
    { NULL }
}

Definition at line 186 of file vf_lumakey.c.

ff_vf_lumakey

const 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,
    FILTER_INPUTS(lumakey_inputs),
    FILTER_OUTPUTS(lumakey_outputs),
    FILTER_PIXFMTS_ARRAY(pixel_fmts),
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
    .process_command = process_command,
}

Definition at line 195 of file vf_lumakey.c.