vf_hysteresis.c File Reference

#include "libavutil/imgutils.h"
#include "libavutil/mem.h"
#include "libavutil/pixdesc.h"
#include "libavutil/opt.h"
#include "avfilter.h"
#include "filters.h"
#include "video.h"
#include "framesync.h"

Go to the source code of this file.

Data Structures
struct	HysteresisContext

Macros
#define	OFFSET(x)
#define	FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Functions
static int	process_frame (FFFrameSync *fs)
static int	passed (HysteresisContext *s, int x, int y, int w)
static void	push (HysteresisContext *s, int x, int y, int w)
static void	pop (HysteresisContext *s, int *x, int *y)
static int	is_empty (HysteresisContext *s)
static void	hysteresis8 (HysteresisContext *s, const uint8_t *bsrc, const uint8_t *asrc, uint8_t *dst, ptrdiff_t blinesize, ptrdiff_t alinesize, ptrdiff_t dlinesize, int w, int h)
static void	hysteresis16 (HysteresisContext *s, const uint8_t *bbsrc, const uint8_t *aasrc, uint8_t *ddst, ptrdiff_t blinesize, ptrdiff_t alinesize, ptrdiff_t dlinesize, int w, int h)
static int	config_input (AVFilterLink *inlink)
static int	config_output (AVFilterLink *outlink)
static int	activate (AVFilterContext *ctx)
static av_cold void	uninit (AVFilterContext *ctx)
	FRAMESYNC_DEFINE_CLASS (hysteresis, HysteresisContext, fs)

Variables
static const AVOption	hysteresis_options []
static enum AVPixelFormat	pix_fmts []
static const AVFilterPad	hysteresis_inputs []
static const AVFilterPad	hysteresis_outputs []
const FFFilter	ff_vf_hysteresis

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

Value:

offsetof(HysteresisContext, x)

Definition at line 31 of file vf_hysteresis.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 32 of file vf_hysteresis.c.

Function Documentation

process_frame()

static int process_frame ( FFFrameSync * fs )

static

Definition at line 82 of file vf_hysteresis.c.

passed()

static int passed ( HysteresisContext * s, int x, int y, int w )

static

Definition at line 135 of file vf_hysteresis.c.

Referenced by hysteresis16(), and hysteresis8().

push()

static void push ( HysteresisContext * s, int x, int y, int w )

static

Definition at line 140 of file vf_hysteresis.c.

Referenced by hysteresis16(), and hysteresis8().

pop()

static void pop ( HysteresisContext * s, int * x, int * y )

static

Definition at line 146 of file vf_hysteresis.c.

Referenced by hysteresis16(), and hysteresis8().

is_empty()

static int is_empty ( HysteresisContext * s )

static

Definition at line 154 of file vf_hysteresis.c.

Referenced by hysteresis16(), and hysteresis8().

hysteresis8()

static void hysteresis8 ( HysteresisContext * s, const uint8_t * bsrc, const uint8_t * asrc, uint8_t * dst, ptrdiff_t blinesize, ptrdiff_t alinesize, ptrdiff_t dlinesize, int w, int h )

static

Definition at line 159 of file vf_hysteresis.c.

Referenced by config_input().

hysteresis16()

static void hysteresis16 ( HysteresisContext * s, const uint8_t * bbsrc, const uint8_t * aasrc, uint8_t * ddst, ptrdiff_t blinesize, ptrdiff_t alinesize, ptrdiff_t dlinesize, int w, int h )

static

Definition at line 201 of file vf_hysteresis.c.

Referenced by config_input().

config_input()

static int config_input ( AVFilterLink * inlink )

static

Definition at line 250 of file vf_hysteresis.c.

config_output()

static int config_output ( AVFilterLink * outlink )

static

Definition at line 284 of file vf_hysteresis.c.

activate()

static int activate ( AVFilterContext * ctx )

static

Definition at line 331 of file vf_hysteresis.c.

uninit()

static av_cold void uninit ( AVFilterContext * ctx )

static

Definition at line 337 of file vf_hysteresis.c.

FRAMESYNC_DEFINE_CLASS()

FRAMESYNC_DEFINE_CLASS	(	hysteresis	,
		HysteresisContext	,
		fs	)

Variable Documentation

hysteresis_options

const AVOption hysteresis_options[]

static

Initial value:

= {
    { "planes",    "set planes",    OFFSET(planes),    AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, FLAGS },
    { "threshold", "set threshold", OFFSET(threshold), AV_OPT_TYPE_INT, {.i64=0},   0, UINT16_MAX, FLAGS },
    { NULL }
}

Definition at line 55 of file vf_hysteresis.c.

pix_fmts

enum AVPixelFormat pix_fmts[]

static

Initial value:

= {
    AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P,
    AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P,
    AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUV420P,
    AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P,
    AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
    AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
    AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
    AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12,
    AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14,
    AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
    AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9,
    AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10,
    AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16,
    AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
    AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
    AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16,
    AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16,
    AV_PIX_FMT_NONE
}

Definition at line 61 of file vf_hysteresis.c.

hysteresis_inputs

const AVFilterPad hysteresis_inputs[]

static

Initial value:

= {
    {
        .name         = "base",
        .type         = AVMEDIA_TYPE_VIDEO,
        .config_props = config_input,
    },
    {
        .name         = "alt",
        .type         = AVMEDIA_TYPE_VIDEO,
    },
}

Definition at line 348 of file vf_hysteresis.c.

hysteresis_outputs

const AVFilterPad hysteresis_outputs[]

static

Initial value:

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

Definition at line 360 of file vf_hysteresis.c.

ff_vf_hysteresis

const FFFilter ff_vf_hysteresis

Initial value:

= {
    .p.name        = "hysteresis",
    .p.description = NULL_IF_CONFIG_SMALL("Grow first stream into second stream by connecting components."),
    .p.priv_class  = &hysteresis_class,
    .p.flags       = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
    .preinit       = hysteresis_framesync_preinit,
    .priv_size     = sizeof(HysteresisContext),
    .uninit        = uninit,
    .activate      = activate,
    FILTER_INPUTS(hysteresis_inputs),
    FILTER_OUTPUTS(hysteresis_outputs),
    FILTER_PIXFMTS_ARRAY(pix_fmts),
}

Definition at line 368 of file vf_hysteresis.c.