vf_quirc.c File Reference

#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "avfilter.h"
#include "formats.h"
#include "video.h"
#include <quirc.h>

Go to the source code of this file.

Data Structures
struct	QuircContext

Macros
#define	SET_CORNER_METADATA(key_, value_)

Functions
static av_cold int	init (AVFilterContext *ctx)
static av_cold void	uninit (AVFilterContext *ctx)
static int	config_input (AVFilterLink *inlink)
static int	query_formats (AVFilterContext *ctx)
static int	filter_frame (AVFilterLink *inlink, AVFrame *frame)

Variables
static const AVClass	quirc_class
static const AVFilterPad	inputs []
const AVFilter	ff_vf_quirc

Macro Definition Documentation

SET_CORNER_METADATA

#define SET_CORNER_METADATA	(		key_,
			value_
	)

Value:

                snprintf(metadata_key, sizeof(metadata_key)-1,          \
                         "lavfi.quirc.%d.corner.%d." #key_, i, j);      \
                av_dict_set_int(metadata, metadata_key, value_, 0)

Function Documentation

init()

static av_cold int init ( AVFilterContext *  ctx )

static

Definition at line 40 of file vf_quirc.c.

uninit()

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 52 of file vf_quirc.c.

config_input()

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 59 of file vf_quirc.c.

query_formats()

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 73 of file vf_quirc.c.

filter_frame()

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

static

Definition at line 90 of file vf_quirc.c.

Variable Documentation

quirc_class

const AVClass quirc_class

static

Initial value:

= {
    .class_name = "quirc",
    .version    = LIBAVUTIL_VERSION_INT,
    .category   = AV_CLASS_CATEGORY_FILTER
}

Definition at line 155 of file vf_quirc.c.

inputs

const AVFilterPad inputs[]

static

Initial value:

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

Definition at line 161 of file vf_quirc.c.

ff_vf_quirc

const AVFilter ff_vf_quirc

Initial value:

= {
    .name        = "quirc",
    .description = NULL_IF_CONFIG_SMALL("Decode and show QR codes content."),
    .priv_size   = sizeof(QuircContext),
    .priv_class  = &quirc_class,
    .init        = init,
    .uninit      = uninit,
    FILTER_INPUTS(inputs),
    FILTER_OUTPUTS(ff_video_default_filterpad),
    FILTER_QUERY_FUNC(query_formats),
    .flags       = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC |
                   AVFILTER_FLAG_METADATA_ONLY,
}

Definition at line 170 of file vf_quirc.c.