vf_bbox.c File Reference

bounding box detection filter More...

#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "libavutil/timestamp.h"
#include "avfilter.h"
#include "bbox.h"
#include "filters.h"

Go to the source code of this file.

Data Structures
struct	BBoxContext

Macros
#define	OFFSET(x)
#define	FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
#define	SET_META(key, value)

Functions
	AVFILTER_DEFINE_CLASS (bbox)
static int	filter_frame (AVFilterLink *inlink, AVFrame *frame)
static int	config_output (AVFilterLink *outlink)

Variables
static const AVOption	bbox_options []
static enum AVPixelFormat	pix_fmts []
static const AVFilterPad	bbox_inputs []
static const AVFilterPad	bbox_outputs []
const FFFilter	ff_vf_bbox

Detailed Description

bounding box detection filter

Definition in file vf_bbox.c.

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

Value:

offsetof(BBoxContext, x)

Definition at line 39 of file vf_bbox.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM

Definition at line 40 of file vf_bbox.c.

SET_META

#define SET_META	(		key,
			value )

Value:

    av_dict_set_int(metadata, key, value, 0);

Definition at line 73 of file vf_bbox.c.

Referenced by filter_frame().

Function Documentation

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

bbox

)

filter_frame()

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

static

Definition at line 76 of file vf_bbox.c.

config_output()

static int config_output ( AVFilterLink * outlink )

static

Definition at line 117 of file vf_bbox.c.

Variable Documentation

bbox_options

const AVOption bbox_options[]

static

Initial value:

= {
    { "min_val", "set minimum luminance value for bounding box", OFFSET(min_val), AV_OPT_TYPE_INT, { .i64 = 16 }, 0, UINT16_MAX, FLAGS },
    { NULL }
}

Definition at line 42 of file vf_bbox.c.

pix_fmts

enum AVPixelFormat pix_fmts[]

static

Initial value:

= {
    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_YUV410P, AV_PIX_FMT_YUV411P,
    AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P,
    AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV444P,
    AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P,
    AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ444P,
    AV_PIX_FMT_YUVJ411P,
    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_YUV440P10,
    AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV420P12,
    AV_PIX_FMT_YUV440P12,
    AV_PIX_FMT_YUV444P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV420P14,
    AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
    AV_PIX_FMT_YUVA420P,  AV_PIX_FMT_YUVA422P,   AV_PIX_FMT_YUVA444P,
    AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_YUVA444P12, AV_PIX_FMT_YUVA444P16,
    AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA422P16,
    AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA420P16,
    AV_PIX_FMT_NONE,
}

Definition at line 49 of file vf_bbox.c.

bbox_inputs

const AVFilterPad bbox_inputs[]

static

Initial value:

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

Definition at line 131 of file vf_bbox.c.

bbox_outputs

const AVFilterPad bbox_outputs[]

static

Initial value:

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

Definition at line 139 of file vf_bbox.c.

ff_vf_bbox

const FFFilter ff_vf_bbox

Initial value:

= {
    .p.name        = "bbox",
    .p.description = NULL_IF_CONFIG_SMALL("Compute bounding box for each frame."),
    .p.priv_class  = &bbox_class,
    .p.flags       = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_METADATA_ONLY,
    .priv_size     = sizeof(BBoxContext),
    FILTER_INPUTS(bbox_inputs),
    FILTER_OUTPUTS(bbox_outputs),
    FILTER_PIXFMTS_ARRAY(pix_fmts),
    .process_command = ff_filter_process_command,
}

Definition at line 147 of file vf_bbox.c.