vf_drawbox.c File Reference

Box and grid drawing filters. More...

#include "libavutil/colorspace.h"
#include "libavutil/common.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "libavutil/parseutils.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "video.h"

Go to the source code of this file.

Data Structures
struct	DrawBoxContext

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

Enumerations
enum	{ Y, U, V, A }

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

Detailed Description

Box and grid drawing filters.

Also a nice template for a filter that needs to write in the input frame.

Definition in file vf_drawbox.c.

Macro Definition Documentation

#define OFFSET

(

x

)

offsetof(DrawBoxContext, x)

Definition at line 137 of file vf_drawbox.c.

#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

Definition at line 138 of file vf_drawbox.c.

Enumeration Type Documentation

anonymous enum

Enumerator:

Y
U
V
A

Definition at line 38 of file vf_drawbox.c.

Function Documentation

static av_cold int init ( AVFilterContext *  ctx )

static

Definition at line 50 of file vf_drawbox.c.

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 70 of file vf_drawbox.c.

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 84 of file vf_drawbox.c.

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

static

Definition at line 102 of file vf_drawbox.c.