vf_weave.c File Reference

#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "filters.h"
#include "formats.h"
#include "video.h"

Go to the source code of this file.

Data Structures
struct	WeaveContext
struct	ThreadData
	Used for passing data between threads. More...

Macros
#define	OFFSET(x)   offsetof(WeaveContext, x)
#define	FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Functions
	AVFILTER_DEFINE_CLASS_EXT (weave, "(double)weave", weave_options)
static int	query_formats (const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out)
static int	config_props_output (AVFilterLink *outlink)
static int	weave_slice (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	filter_frame (AVFilterLink *inlink, AVFrame *in)
static av_cold void	uninit (AVFilterContext *ctx)
static av_cold int	init (AVFilterContext *ctx)

Variables
static const AVOption	weave_options []
static const AVFilterPad	weave_inputs []
static const AVFilterPad	weave_outputs []
const FFFilter	ff_vf_weave
const FFFilter	ff_vf_doubleweave

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

offsetof(WeaveContext, x)

Definition at line 41 of file vf_weave.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 42 of file vf_weave.c.

Function Documentation

AVFILTER_DEFINE_CLASS_EXT()

AVFILTER_DEFINE_CLASS_EXT	(	weave	,
		"(double)weave"	,
		weave_options
	)

query_formats()

static int query_formats ( const AVFilterContext *  ctx, AVFilterFormatsConfig **  cfg_in, AVFilterFormatsConfig **  cfg_out  )

static

Definition at line 55 of file vf_weave.c.

config_props_output()

static int config_props_output ( AVFilterLink *  outlink )

static

Definition at line 65 of file vf_weave.c.

weave_slice()

static int weave_slice ( AVFilterContext *  ctx, void *  arg, int  jobnr, int  nb_jobs  )

static

Definition at line 102 of file vf_weave.c.

Referenced by filter_frame().

filter_frame()

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

static

Definition at line 138 of file vf_weave.c.

uninit()

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 178 of file vf_weave.c.

init()

static av_cold int init ( AVFilterContext *  ctx )

static

Definition at line 213 of file vf_weave.c.

Variable Documentation

weave_options

const AVOption weave_options[]

static

Initial value:

= {
    { "first_field", "set first field", OFFSET(first_field), AV_OPT_TYPE_INT,   {.i64=0}, 0, 1, FLAGS, .unit = "field"},
        { "top",     "set top field first",               0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, .unit = "field"},
        { "t",       "set top field first",               0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, .unit = "field"},
        { "bottom",  "set bottom field first",            0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, .unit = "field"},
        { "b",       "set bottom field first",            0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, .unit = "field"},
    { NULL }
}

Definition at line 44 of file vf_weave.c.

weave_inputs

const AVFilterPad weave_inputs[]

static

Initial value:

= {
    {
        .name             = "default",
        .type             = AVMEDIA_TYPE_VIDEO,
        .filter_frame     = filter_frame,
    },
}

Definition at line 185 of file vf_weave.c.

weave_outputs

const AVFilterPad weave_outputs[]

static

Initial value:

= {
    {
        .name          = "default",
        .type          = AVMEDIA_TYPE_VIDEO,
        .config_props  = config_props_output,
    },
}

Definition at line 193 of file vf_weave.c.

ff_vf_weave

const FFFilter ff_vf_weave

Initial value:

= {
    .p.name        = "weave",
    .p.description = NULL_IF_CONFIG_SMALL("Weave input video fields into frames."),
    .p.priv_class  = &weave_class,
    .p.flags       = AVFILTER_FLAG_SLICE_THREADS,
    .priv_size     = sizeof(WeaveContext),
    .uninit        = uninit,
    FILTER_INPUTS(weave_inputs),
    FILTER_OUTPUTS(weave_outputs),
    FILTER_QUERY_FUNC2(query_formats),
}

Definition at line 201 of file vf_weave.c.

ff_vf_doubleweave

const FFFilter ff_vf_doubleweave

Initial value:

= {
    .p.name        = "doubleweave",
    .p.description = NULL_IF_CONFIG_SMALL("Weave input video fields into double number of frames."),
    .p.priv_class  = &weave_class,
    .p.flags       = AVFILTER_FLAG_SLICE_THREADS,
    .priv_size     = sizeof(WeaveContext),
    .init          = init,
    .uninit        = uninit,
    FILTER_INPUTS(weave_inputs),
    FILTER_OUTPUTS(weave_outputs),
    FILTER_QUERY_FUNC2(query_formats),
}

Definition at line 223 of file vf_weave.c.