vf_fieldhint.c File Reference

#include "libavutil/avassert.h"
#include "libavutil/file_open.h"
#include "libavutil/imgutils.h"
#include "libavutil/internal.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	FieldHintContext

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

Enumerations
enum	HintModes { ABSOLUTE_HINT, RELATIVE_HINT, PATTERN_HINT, NB_HINTS }

Functions
	AVFILTER_DEFINE_CLASS (fieldhint)
static av_cold int	init (AVFilterContext *ctx)
static int	query_formats (const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out)
static int	config_input (AVFilterLink *inlink)
static int	filter_frame (AVFilterLink *inlink, AVFrame *in)
static int	request_frame (AVFilterLink *outlink)
static av_cold void	uninit (AVFilterContext *ctx)

Variables
static const AVOption	fieldhint_options []
static const AVFilterPad	inputs []
static const AVFilterPad	outputs []
const AVFilter	ff_vf_fieldhint

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

offsetof(FieldHintContext, x)

Definition at line 55 of file vf_fieldhint.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

Definition at line 56 of file vf_fieldhint.c.

Enumeration Type Documentation

HintModes

enum HintModes

Enumerator
ABSOLUTE_HINT
RELATIVE_HINT
PATTERN_HINT
NB_HINTS

Definition at line 32 of file vf_fieldhint.c.

Function Documentation

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

fieldhint

)

init()

static av_cold int init ( AVFilterContext *  ctx )

static

Definition at line 69 of file vf_fieldhint.c.

query_formats()

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

static

Definition at line 88 of file vf_fieldhint.c.

config_input()

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 100 of file vf_fieldhint.c.

filter_frame()

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

static

Definition at line 117 of file vf_fieldhint.c.

Referenced by request_frame().

request_frame()

static int request_frame ( AVFilterLink *  outlink )

static

Definition at line 275 of file vf_fieldhint.c.

uninit()

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 296 of file vf_fieldhint.c.

Variable Documentation

fieldhint_options

const AVOption fieldhint_options[]

static

Initial value:

= {
    { "hint", "set hint file", OFFSET(hint_file_str), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
    { "mode", "set hint mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=0}, 0, NB_HINTS-1, FLAGS, .unit = "mode" },
    {   "absolute", 0, 0, AV_OPT_TYPE_CONST, {.i64=ABSOLUTE_HINT}, 0, 0, FLAGS, .unit = "mode" },
    {   "relative", 0, 0, AV_OPT_TYPE_CONST, {.i64=RELATIVE_HINT}, 0, 0, FLAGS, .unit = "mode" },
    {   "pattern",  0, 0, AV_OPT_TYPE_CONST, {.i64=PATTERN_HINT},  0, 0, FLAGS, .unit = "mode" },
    { NULL }
}

Definition at line 58 of file vf_fieldhint.c.

inputs

const AVFilterPad inputs[]

static

Initial value:

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

Definition at line 309 of file vf_fieldhint.c.

outputs

const AVFilterPad outputs[]

static

Initial value:

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

Definition at line 318 of file vf_fieldhint.c.

ff_vf_fieldhint

const AVFilter ff_vf_fieldhint

Initial value:

= {
    .name          = "fieldhint",
    .description   = NULL_IF_CONFIG_SMALL("Field matching using hints."),
    .priv_size     = sizeof(FieldHintContext),
    .priv_class    = &fieldhint_class,
    .init          = init,
    .uninit        = uninit,
    FILTER_INPUTS(inputs),
    FILTER_OUTPUTS(outputs),
    FILTER_QUERY_FUNC2(query_formats),
}

Definition at line 326 of file vf_fieldhint.c.