vf_phase.c File Reference

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

Go to the source code of this file.

Data Structures
struct	PhaseContext

Macros
#define	OFFSET(x)   offsetof(PhaseContext, x)
#define	FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
#define	CONST(name, help, val, unit)   { name, help, 0, AV_OPT_TYPE_CONST, {.i64=val}, 0, 0, FLAGS, unit }
#define	DIFF(a, as, b, bs)   ((t) = ((*(a) - (b)[bs]) << 2) + (a)[(as) << 1] - (b)[-(bs)], (t) * (t))

Enumerations
enum	PhaseMode {   PROGRESSIVE, TOP_FIRST, BOTTOM_FIRST, TOP_FIRST_ANALYZE,   BOTTOM_FIRST_ANALYZE, ANALYZE, FULL_ANALYZE, AUTO,   AUTO_ANALYZE }

Functions
	AVFILTER_DEFINE_CLASS (phase)
static int	query_formats (AVFilterContext *ctx)
static int	config_input (AVFilterLink *inlink)
static enum PhaseMode	analyze_plane (void *ctx, enum PhaseMode mode, AVFrame *old, AVFrame *new)
static int	filter_frame (AVFilterLink *inlink, AVFrame *in)
static av_cold void	uninit (AVFilterContext *ctx)

Variables
static const AVOption	phase_options []
static const AVFilterPad	phase_inputs []
static const AVFilterPad	phase_outputs []
AVFilter	ff_vf_phase

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

offsetof(PhaseContext, x)

Definition at line 51 of file vf_phase.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 52 of file vf_phase.c.

CONST

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

Definition at line 53 of file vf_phase.c.

DIFF

#define DIFF	(		a,
			as,
			b,
			bs
	)		((t) = ((*(a) - (b)[bs]) << 2) + (a)[(as) << 1] - (b)[-(bs)], (t) * (t))

Definition at line 111 of file vf_phase.c.

Referenced by analyze_plane().

Enumeration Type Documentation

PhaseMode

enum PhaseMode

Enumerator
PROGRESSIVE
TOP_FIRST
BOTTOM_FIRST
TOP_FIRST_ANALYZE
BOTTOM_FIRST_ANALYZE
ANALYZE
FULL_ANALYZE
AUTO
AUTO_ANALYZE

Definition at line 30 of file vf_phase.c.

Function Documentation

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

phase

)

query_formats()

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 71 of file vf_phase.c.

config_input()

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 86 of file vf_phase.c.

analyze_plane()

static enum PhaseMode analyze_plane ( void *  ctx, enum PhaseMode  mode, AVFrame *  old, AVFrame *  new  )

static

Definition at line 117 of file vf_phase.c.

Referenced by filter_frame().

filter_frame()

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

static

Definition at line 246 of file vf_phase.c.

uninit()

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 298 of file vf_phase.c.

Variable Documentation

phase_options

const AVOption phase_options[]

static

Initial value:

= {
    { "mode", "set phase mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=AUTO_ANALYZE}, PROGRESSIVE, AUTO_ANALYZE, FLAGS, "mode" },
    CONST("p", "progressive",          PROGRESSIVE,          "mode"),
    CONST("t", "top first",            TOP_FIRST,            "mode"),
    CONST("b", "bottom first",         BOTTOM_FIRST,         "mode"),
    CONST("T", "top first analyze",    TOP_FIRST_ANALYZE,    "mode"),
    CONST("B", "bottom first analyze", BOTTOM_FIRST_ANALYZE, "mode"),
    CONST("u", "analyze",              ANALYZE,              "mode"),
    CONST("U", "full analyze",         FULL_ANALYZE,         "mode"),
    CONST("a", "auto",                 AUTO,                 "mode"),
    CONST("A", "auto analyze",         AUTO_ANALYZE,         "mode"),
    { NULL }
}

Definition at line 55 of file vf_phase.c.

phase_inputs

const AVFilterPad phase_inputs[]

static

Initial value:

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

Definition at line 305 of file vf_phase.c.

phase_outputs

const AVFilterPad phase_outputs[]

static

Initial value:

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

Definition at line 315 of file vf_phase.c.

ff_vf_phase

AVFilter ff_vf_phase

Initial value:

= {
    .name          = "phase",
    .description   = NULL_IF_CONFIG_SMALL("Phase shift fields."),
    .priv_size     = sizeof(PhaseContext),
    .priv_class    = &phase_class,
    .uninit        = uninit,
    .query_formats = query_formats,
    .inputs        = phase_inputs,
    .outputs       = phase_outputs,
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
}

Definition at line 323 of file vf_phase.c.