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vf_w3fdif.c File Reference
#include "libavutil/common.h"
#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "video.h"

Go to the source code of this file.

Data Structures

struct  W3FDIFContext
 

Macros

#define OFFSET(x)   offsetof(W3FDIFContext, x)
 
#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
 
#define CONST(name, help, val, unit)   { name, help, 0, AV_OPT_TYPE_CONST, {.i64=val}, 0, 0, FLAGS, unit }
 

Functions

 AVFILTER_DEFINE_CLASS (w3fdif)
 
static int query_formats (AVFilterContext *ctx)
 
static int config_input (AVFilterLink *inlink)
 
static int config_output (AVFilterLink *outlink)
 
static void deinterlace_plane (AVFilterContext *ctx, AVFrame *out, const AVFrame *cur, const AVFrame *adj, const int filter, const int plane)
 
static int filter (AVFilterContext *ctx, int is_second)
 
static int filter_frame (AVFilterLink *inlink, AVFrame *frame)
 
static int request_frame (AVFilterLink *outlink)
 
static av_cold void uninit (AVFilterContext *ctx)
 

Variables

static const AVOption w3fdif_options []
 
static const int8_t n_coef_lf [2] = { 2, 4 }
 
static const int32_t coef_lf [2][4]
 
static const int8_t n_coef_hf [2] = { 3, 5 }
 
static const int32_t coef_hf [2][5]
 
static const AVFilterPad w3fdif_inputs []
 
static const AVFilterPad w3fdif_outputs []
 
AVFilter ff_vf_w3fdif
 

Macro Definition Documentation

#define OFFSET (   x)    offsetof(W3FDIFContext, x)

Definition at line 46 of file vf_w3fdif.c.

Definition at line 47 of file vf_w3fdif.c.

#define CONST (   name,
  help,
  val,
  unit 
)    { name, help, 0, AV_OPT_TYPE_CONST, {.i64=val}, 0, 0, FLAGS, unit }

Definition at line 48 of file vf_w3fdif.c.

Function Documentation

AVFILTER_DEFINE_CLASS ( w3fdif  )
static int query_formats ( AVFilterContext ctx)
static

Definition at line 62 of file vf_w3fdif.c.

static int config_input ( AVFilterLink inlink)
static

Definition at line 82 of file vf_w3fdif.c.

static int config_output ( AVFilterLink outlink)
static

Definition at line 102 of file vf_w3fdif.c.

static void deinterlace_plane ( AVFilterContext ctx,
AVFrame out,
const AVFrame cur,
const AVFrame adj,
const int  filter,
const int  plane 
)
static

Definition at line 130 of file vf_w3fdif.c.

Referenced by filter().

static int filter ( AVFilterContext ctx,
int  is_second 
)
static

Definition at line 252 of file vf_w3fdif.c.

Referenced by deinterlace_plane(), and filter_frame().

static int filter_frame ( AVFilterLink inlink,
AVFrame frame 
)
static

Definition at line 288 of file vf_w3fdif.c.

Referenced by request_frame().

static int request_frame ( AVFilterLink outlink)
static

Definition at line 326 of file vf_w3fdif.c.

static av_cold void uninit ( AVFilterContext ctx)
static

Definition at line 354 of file vf_w3fdif.c.

Variable Documentation

const AVOption w3fdif_options[]
static
Initial value:
= {
{ "filter", "specify the filter", OFFSET(filter), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, FLAGS, "filter" },
CONST("simple", NULL, 0, "filter"),
CONST("complex", NULL, 1, "filter"),
{ "deint", "specify which frames to deinterlace", OFFSET(deint), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, FLAGS, "deint" },
CONST("all", "deinterlace all frames", 0, "deint"),
CONST("interlaced", "only deinterlace frames marked as interlaced", 1, "deint"),
{ NULL }
}

Definition at line 50 of file vf_w3fdif.c.

const int8_t n_coef_lf[2] = { 2, 4 }
static

Definition at line 123 of file vf_w3fdif.c.

Referenced by deinterlace_plane().

const int32_t coef_lf[2][4]
static
Initial value:
= {{ 32768, 32768, 0, 0},
{ -1704, 34472, 34472, -1704}}

Definition at line 124 of file vf_w3fdif.c.

Referenced by deinterlace_plane().

const int8_t n_coef_hf[2] = { 3, 5 }
static

Definition at line 126 of file vf_w3fdif.c.

Referenced by deinterlace_plane().

const int32_t coef_hf[2][5]
static
Initial value:
= {{ -4096, 8192, -4096, 0, 0},
{ 2032, -7602, 11140, -7602, 2032}}

Definition at line 127 of file vf_w3fdif.c.

Referenced by deinterlace_plane().

const AVFilterPad w3fdif_inputs[]
static
Initial value:
= {
{
.name = "default",
.filter_frame = filter_frame,
.config_props = config_input,
},
{ NULL }
}

Definition at line 364 of file vf_w3fdif.c.

const AVFilterPad w3fdif_outputs[]
static
Initial value:
= {
{
.name = "default",
.config_props = config_output,
.request_frame = request_frame,
},
{ NULL }
}

Definition at line 374 of file vf_w3fdif.c.

AVFilter ff_vf_w3fdif
Initial value:
= {
.name = "w3fdif",
.description = NULL_IF_CONFIG_SMALL("Apply Martin Weston three field deinterlace."),
.priv_size = sizeof(W3FDIFContext),
.priv_class = &w3fdif_class,
}

Definition at line 384 of file vf_w3fdif.c.