libavfilter/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.

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,

    .query_formats = query_formats,

    .inputs    = (AVFilterPad[]) {{ .name = "default",
                                    .type             = AVMEDIA_TYPE_VIDEO,
                                    .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.