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.

#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

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 83 of file vf_w3fdif.c.

static int config_output ( AVFilterLink *  outlink )

static

Definition at line 103 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 131 of file vf_w3fdif.c.

Referenced by filter().

static int filter ( AVFilterContext *  ctx, int  is_second  )

static

Definition at line 253 of file vf_w3fdif.c.

Referenced by deinterlace_plane(), and filter_frame().

static int filter_frame ( AVFilterLink *  inlink, AVFrame *  frame  )

static

Definition at line 289 of file vf_w3fdif.c.

Referenced by request_frame().

static int request_frame ( AVFilterLink *  outlink )

static

Definition at line 327 of file vf_w3fdif.c.

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 355 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 124 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 125 of file vf_w3fdif.c.

Referenced by deinterlace_plane().

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

static

Definition at line 127 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 128 of file vf_w3fdif.c.

Referenced by deinterlace_plane().

const AVFilterPad w3fdif_inputs[]

static

Initial value:

= {
    {
        .name          = "default",
        .type          = AVMEDIA_TYPE_VIDEO,
        .filter_frame  = filter_frame,
        .config_props  = config_input,
    },
    { NULL }
}

Definition at line 365 of file vf_w3fdif.c.

const AVFilterPad w3fdif_outputs[]

static

Initial value:

= {
    {
        .name          = "default",
        .type          = AVMEDIA_TYPE_VIDEO,
        .config_props  = config_output,
        .request_frame = request_frame,
    },
    { NULL }
}

Definition at line 375 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,
    .uninit        = uninit,
    .query_formats = query_formats,
    .inputs        = w3fdif_inputs,
    .outputs       = w3fdif_outputs,
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
}

Definition at line 385 of file vf_w3fdif.c.