vf_blackframe.c File Reference

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

#include "avfilter.h"

Go to the source code of this file.

Data Structures

struct  BlackFrameContext

Functions

static int query_formats (AVFilterContext *ctx)
static av_cold int init (AVFilterContext *ctx, const char *args, void *opaque)
static void draw_slice (AVFilterLink *inlink, int y, int h, int slice_dir)
static void end_frame (AVFilterLink *inlink)

Variables

AVFilter avfilter_vf_blackframe

Detailed Description

Search for black frames to detect scene transitions.

Ported from MPlayer libmpcodecs/vf_blackframe.c.

Definition in file vf_blackframe.c.

Function Documentation

static void draw_slice ( AVFilterLink inlink,
int  y,
int  h,
int  slice_dir 
)
static

Definition at line 74 of file vf_blackframe.c.

Referenced by avfilter_draw_slice().

static void end_frame ( AVFilterLink inlink)
static

Definition at line 91 of file vf_blackframe.c.

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

Definition at line 51 of file vf_blackframe.c.

static int query_formats ( AVFilterContext ctx)
static

Definition at line 39 of file vf_blackframe.c.

Variable Documentation

AVFilter avfilter_vf_blackframe
Initial value:
{
.name = "blackframe",
.description = NULL_IF_CONFIG_SMALL("Detect frames that are (almost) black."),
.priv_size = sizeof(BlackFrameContext),
.init = init,
.inputs = (AVFilterPad[]) {{ .name = "default",
.draw_slice = draw_slice,
.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 109 of file vf_blackframe.c.