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,

    .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.