libavfilter/vf_tile.c File Reference

tile video filter More...

#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "drawutils.h"
#include "formats.h"
#include "video.h"
#include "internal.h"

Go to the source code of this file.

Data Structures

struct  TileContext

Defines

#define REASONABLE_SIZE   1024

Functions

static av_cold int init (AVFilterContext *ctx, const char *args)
static int query_formats (AVFilterContext *ctx)
static int config_props (AVFilterLink *outlink)
static int start_frame (AVFilterLink *inlink, AVFilterBufferRef *picref)
static int draw_slice (AVFilterLink *inlink, int y, int h, int slice_dir)
static void draw_blank_frame (AVFilterContext *ctx, AVFilterBufferRef *out_buf)
static void end_last_frame (AVFilterContext *ctx)
static int end_frame (AVFilterLink *inlink)
static int request_frame (AVFilterLink *outlink)

Variables

AVFilter avfilter_vf_tile


Detailed Description

tile video filter

Definition in file vf_tile.c.


Define Documentation

#define REASONABLE_SIZE   1024

Definition at line 40 of file vf_tile.c.

Referenced by init().


Function Documentation

static int config_props ( AVFilterLink outlink  )  [static]

Definition at line 67 of file vf_tile.c.

static void draw_blank_frame ( AVFilterContext ctx,
AVFilterBufferRef out_buf 
) [static]

Definition at line 132 of file vf_tile.c.

Referenced by end_last_frame().

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

Definition at line 115 of file vf_tile.c.

static int end_frame ( AVFilterLink inlink  )  [static]

Definition at line 159 of file vf_tile.c.

static void end_last_frame ( AVFilterContext ctx  )  [static]

Definition at line 144 of file vf_tile.c.

Referenced by end_frame(), and request_frame().

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

Definition at line 42 of file vf_tile.c.

static int query_formats ( AVFilterContext ctx  )  [static]

Definition at line 61 of file vf_tile.c.

static int request_frame ( AVFilterLink outlink  )  [static]

Definition at line 170 of file vf_tile.c.

static int start_frame ( AVFilterLink inlink,
AVFilterBufferRef picref 
) [static]

Definition at line 99 of file vf_tile.c.


Variable Documentation

Initial value:

 {
    .name          = "tile",
    .description   = NULL_IF_CONFIG_SMALL("Tile several successive frames together."),
    .init          = init,
    .query_formats = query_formats,
    .priv_size     = sizeof(TileContext),
    .inputs = (const AVFilterPad[]) {
        { .name        = "default",
          .type        = AVMEDIA_TYPE_VIDEO,
          .start_frame = start_frame,
          .draw_slice  = draw_slice,
          .end_frame   = end_frame,
          .min_perms   = AV_PERM_READ, },
        { .name = NULL }
    },
    .outputs = (const AVFilterPad[]) {
        { .name          = "default",
          .type          = AVMEDIA_TYPE_VIDEO,
          .config_props  = config_props,
          .request_frame = request_frame },
        { .name = NULL }
    },
}

Definition at line 193 of file vf_tile.c.


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