libavfilter/vf_framestep.c File Reference

#include "avfilter.h"
#include "internal.h"
#include "video.h"

Go to the source code of this file.

Data Structures
struct	FrameStepContext
Functions
static av_cold int	init (AVFilterContext *ctx, const char *args)
static int	config_output_props (AVFilterLink *outlink)
static int	start_frame (AVFilterLink *inlink, AVFilterBufferRef *ref)
static int	draw_slice (AVFilterLink *inlink, int y, int h, int slice_dir)
static int	end_frame (AVFilterLink *inlink)
static int	request_frame (AVFilterLink *outlink)
Variables
AVFilter	avfilter_vf_framestep

---

Function Documentation

static int config_output_props

(

AVFilterLink *

outlink

)

[static]

Definition at line 53 of file vf_framestep.c.

static int draw_slice	(	AVFilterLink *	inlink,
		int	y,
		int	h,
		int	slice_dir
	)			[static]

Definition at line 82 of file vf_framestep.c.

static int end_frame

(

AVFilterLink *

inlink

)

[static]

Definition at line 91 of file vf_framestep.c.

static av_cold int init	(	AVFilterContext *	ctx,
		const char *	args
	)			[static]

Definition at line 34 of file vf_framestep.c.

static int request_frame

(

AVFilterLink *

outlink

)

[static]

Definition at line 100 of file vf_framestep.c.

static int start_frame	(	AVFilterLink *	inlink,
		AVFilterBufferRef *	ref
	)			[static]

Definition at line 69 of file vf_framestep.c.

---

Variable Documentation

AVFilter avfilter_vf_framestep

Initial value:

 {
    .name      = "framestep",
    .description = NULL_IF_CONFIG_SMALL("Select one frame every N frames."),
    .init      = init,
    .priv_size = sizeof(FrameStepContext),

    .inputs = (const AVFilterPad[]) {
        {
            .name             = "default",
            .type             = AVMEDIA_TYPE_VIDEO,
            .get_video_buffer = ff_null_get_video_buffer,
            .start_frame      = start_frame,
            .draw_slice       = draw_slice,
            .end_frame        = end_frame,
        },
        { .name = NULL }
    },
    .outputs = (const AVFilterPad[]) {
        {
            .name             = "default",
            .type             = AVMEDIA_TYPE_VIDEO,
            .config_props     = config_output_props,
            .request_frame    = request_frame,
        },
        { .name = NULL }
    },
}

Definition at line 114 of file vf_framestep.c.