vf_cropdetect.c File Reference

border detection filter Ported from MPlayer libmpcodecs/vf_cropdetect.c. More...

#include "libavutil/imgutils.h"
#include "avfilter.h"

Go to the source code of this file.

Data Structures

struct  CropDetectContext

Functions

static int query_formats (AVFilterContext *ctx)
static int checkline (void *ctx, const unsigned char *src, int stride, int len, int bpp)
static av_cold int init (AVFilterContext *ctx, const char *args, void *opaque)
static int config_input (AVFilterLink *inlink)
static void end_frame (AVFilterLink *inlink)

Variables

AVFilter avfilter_vf_cropdetect

Detailed Description

border detection filter Ported from MPlayer libmpcodecs/vf_cropdetect.c.

Definition in file vf_cropdetect.c.

Function Documentation

static int checkline ( void ctx,
const unsigned char *  src,
int  stride,
int  len,
int  bpp 
)
static

Definition at line 53 of file vf_cropdetect.c.

Referenced by end_frame().

static int config_input ( AVFilterLink inlink)
static

Definition at line 98 of file vf_cropdetect.c.

static void end_frame ( AVFilterLink inlink)
static

Definition at line 114 of file vf_cropdetect.c.

static av_cold int init ( AVFilterContext ctx,
const char *  args,
void opaque 
)
static

Definition at line 80 of file vf_cropdetect.c.

static int query_formats ( AVFilterContext ctx)
static

Definition at line 38 of file vf_cropdetect.c.

Variable Documentation

AVFilter avfilter_vf_cropdetect
Initial value:
{
.name = "cropdetect",
.description = NULL_IF_CONFIG_SMALL("Auto-detect crop size."),
.priv_size = sizeof(CropDetectContext),
.init = init,
.inputs = (AVFilterPad[]) {{ .name = "default",
.config_props = config_input,
.get_video_buffer = avfilter_null_get_video_buffer,
.start_frame = avfilter_null_start_frame,
.end_frame = end_frame, },
{ .name = NULL}},
.outputs = (AVFilterPad[]) {{ .name = "default",
.type = AVMEDIA_TYPE_VIDEO },
{ .name = NULL}},
}

Definition at line 194 of file vf_cropdetect.c.