vf_blackframe.c File Reference

Search for black frames to detect scene transitions. More...

#include <stdio.h>
#include <inttypes.h>
#include "libavutil/internal.h"
#include "libavutil/opt.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "video.h"

Classes
struct	BlackFrameContext

Macros
#define	SET_META(key, format, value)
#define	OFFSET(x)   offsetof(BlackFrameContext, x)
#define	FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

Typedefs
typedef struct BlackFrameContext	BlackFrameContext

Functions
	AVFILTER_DEFINE_CLASS (blackframe)

Variables
AVFilter	ff_vf_blackframe

Detailed Description

Search for black frames to detect scene transitions.

Ported from MPlayer libmpcodecs/vf_blackframe.c.

Macro Definition Documentation

SET_META

#define SET_META	(		key,
			format,
			value
	)

Value:

snprintf(buf, sizeof(buf), format, value);  \
    av_dict_set(metadata, key, buf, 0)

Variable Documentation

ff_vf_blackframe

AVFilter ff_vf_blackframe

Initial value:

= {
    .name          = "blackframe",
    .description   = NULL_IF_CONFIG_SMALL("Detect frames that are (almost) black."),
    .priv_size     = sizeof(BlackFrameContext),
    .priv_class    = &blackframe_class,
    .query_formats = query_formats,
    .inputs        = avfilter_vf_blackframe_inputs,
    .outputs       = avfilter_vf_blackframe_outputs,
}