vf_threshold.c File Reference

threshold video filter More...

#include "libavutil/imgutils.h"
#include "libavutil/internal.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "framesync.h"
#include "internal.h"
#include "video.h"
#include "threshold.h"

Go to the source code of this file.

Data Structures
struct	ThreadData
	Used for passing data between threads. More...

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

Functions
	AVFILTER_DEFINE_CLASS (threshold)
static int	query_formats (AVFilterContext *ctx)
static int	filter_slice (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	process_frame (FFFrameSync *fs)
static void	threshold8 (const uint8_t *in, const uint8_t *threshold, const uint8_t *min, const uint8_t *max, uint8_t *out, ptrdiff_t ilinesize, ptrdiff_t tlinesize, ptrdiff_t flinesize, ptrdiff_t slinesize, ptrdiff_t olinesize, int w, int h)
static void	threshold16 (const uint8_t *iin, const uint8_t *tthreshold, const uint8_t *ffirst, const uint8_t *ssecond, uint8_t *oout, ptrdiff_t ilinesize, ptrdiff_t tlinesize, ptrdiff_t flinesize, ptrdiff_t slinesize, ptrdiff_t olinesize, int w, int h)
static int	config_input (AVFilterLink *inlink)
void	ff_threshold_init (ThresholdContext *s)
static int	config_output (AVFilterLink *outlink)
static int	activate (AVFilterContext *ctx)
static av_cold void	uninit (AVFilterContext *ctx)

Variables
static const AVOption	threshold_options []
static const AVFilterPad	inputs []
static const AVFilterPad	outputs []
AVFilter	ff_vf_threshold

Detailed Description

threshold video filter

Definition in file vf_threshold.c.

Macro Definition Documentation

#define OFFSET

(

x

)

offsetof(ThresholdContext, x)

Definition at line 36 of file vf_threshold.c.

#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

Definition at line 37 of file vf_threshold.c.

Function Documentation

AVFILTER_DEFINE_CLASS

(

threshold

)

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 46 of file vf_threshold.c.

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

static

Definition at line 79 of file vf_threshold.c.

Referenced by process_frame().

static int process_frame ( FFFrameSync *  fs )

static

Definition at line 117 of file vf_threshold.c.

Referenced by config_output().

static void threshold8 ( const uint8_t *  in, const uint8_t *  threshold, const uint8_t *  min, const uint8_t *  max, uint8_t *  out, ptrdiff_t  ilinesize, ptrdiff_t  tlinesize, ptrdiff_t  flinesize, ptrdiff_t  slinesize, ptrdiff_t  olinesize, int  w, int  h  )

static

Definition at line 156 of file vf_threshold.c.

Referenced by ff_threshold_init().

static void threshold16 ( const uint8_t *  iin, const uint8_t *  tthreshold, const uint8_t *  ffirst, const uint8_t *  ssecond, uint8_t *  oout, ptrdiff_t  ilinesize, ptrdiff_t  tlinesize, ptrdiff_t  flinesize, ptrdiff_t  slinesize, ptrdiff_t  olinesize, int  w, int  h  )

static

Definition at line 179 of file vf_threshold.c.

Referenced by ff_threshold_init().

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 207 of file vf_threshold.c.

void ff_threshold_init

(

ThresholdContext *

s

)

Definition at line 229 of file vf_threshold.c.

Referenced by check_threshold(), and config_input().

static int config_output ( AVFilterLink *  outlink )

static

Definition at line 243 of file vf_threshold.c.

static int activate ( AVFilterContext *  ctx )

static

Definition at line 310 of file vf_threshold.c.

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 316 of file vf_threshold.c.

Variable Documentation

const AVOption threshold_options[]

static

Initial value:

= {
    { "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT,  {.i64=15}, 0, 15, FLAGS},
    { NULL }
}

Definition at line 39 of file vf_threshold.c.

const AVFilterPad inputs[]

static

Initial value:

= {
    {
        .name         = "default",
        .type         = AVMEDIA_TYPE_VIDEO,
        .config_props = config_input,
    },
    {
        .name         = "threshold",
        .type         = AVMEDIA_TYPE_VIDEO,
    },
    {
        .name         = "min",
        .type         = AVMEDIA_TYPE_VIDEO,
    },
    {
        .name         = "max",
        .type         = AVMEDIA_TYPE_VIDEO,
    },
    { NULL }
}

Definition at line 323 of file vf_threshold.c.

const AVFilterPad outputs[]

static

Initial value:

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

Definition at line 344 of file vf_threshold.c.

AVFilter ff_vf_threshold

Initial value:

= {
    .name          = "threshold",
    .description   = NULL_IF_CONFIG_SMALL("Threshold first video stream using other video streams."),
    .priv_size     = sizeof(ThresholdContext),
    .priv_class    = &threshold_class,
    .uninit        = uninit,
    .query_formats = query_formats,
    .activate      = activate,
    .inputs        = inputs,
    .outputs       = outputs,
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS,
}

Definition at line 353 of file vf_threshold.c.