af_deesser.c File Reference

#include "libavutil/channel_layout.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "avfilter.h"
#include "audio.h"
#include "filters.h"

Go to the source code of this file.

Data Structures
struct	DeesserChannel
struct	DeesserContext

Macros
#define	OFFSET(x)   offsetof(DeesserContext, x)
#define	A   AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

Enumerations
enum	OutModes {   IN_MODE, DESIRED_MODE, OUT_MODE, NOISE_MODE,   ERROR_MODE, NB_OMODES, IN_MODE, OUT_MODE,   NOISE_MODE, NB_MODES, IN_MODE, OUT_MODE,   NOISE_MODE, NB_MODES, IN_MODE, DESIRED_MODE,   OUT_MODE, NOISE_MODE, ERROR_MODE, NB_OMODES,   IN_MODE, DESIRED_MODE, OUT_MODE, NOISE_MODE,   ERROR_MODE, NB_OMODES, IN_MODE, OUT_MODE,   ESS_MODE, NB_MODES }

Functions
	AVFILTER_DEFINE_CLASS (deesser)
static int	config_input (AVFilterLink *inlink)
static int	filter_frame (AVFilterLink *inlink, AVFrame *in)
static av_cold void	uninit (AVFilterContext *ctx)

Variables
static const AVOption	deesser_options []
static const AVFilterPad	inputs []
const AVFilter	ff_af_deesser

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

offsetof(DeesserContext, x)

Definition at line 56 of file af_deesser.c.

A

#define A   AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

Definition at line 57 of file af_deesser.c.

Enumeration Type Documentation

OutModes

enum OutModes

Enumerator
IN_MODE
DESIRED_MODE
OUT_MODE
NOISE_MODE
ERROR_MODE
NB_OMODES
IN_MODE
OUT_MODE
NOISE_MODE
NB_MODES
IN_MODE
OUT_MODE
NOISE_MODE
NB_MODES
IN_MODE
DESIRED_MODE
OUT_MODE
NOISE_MODE
ERROR_MODE
NB_OMODES
IN_MODE
DESIRED_MODE
OUT_MODE
NOISE_MODE
ERROR_MODE
NB_OMODES
IN_MODE
OUT_MODE
ESS_MODE
NB_MODES

Definition at line 49 of file af_deesser.c.

Function Documentation

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

deesser

)

config_input()

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 72 of file af_deesser.c.

filter_frame()

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

static

Definition at line 90 of file af_deesser.c.

uninit()

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 181 of file af_deesser.c.

Variable Documentation

deesser_options

const AVOption deesser_options[]

static

Initial value:

= {
    { "i", "set intensity",    OFFSET(intensity), AV_OPT_TYPE_DOUBLE, {.dbl=0.0}, 0.0, 1.0, A },
    { "m", "set max deessing", OFFSET(max),       AV_OPT_TYPE_DOUBLE, {.dbl=0.5}, 0.0, 1.0, A },
    { "f", "set frequency",    OFFSET(frequency), AV_OPT_TYPE_DOUBLE, {.dbl=0.5}, 0.0, 1.0, A },
    { "s", "set output mode",  OFFSET(mode),      AV_OPT_TYPE_INT,    {.i64=OUT_MODE}, 0, NB_MODES-1, A, .unit = "mode" },
    {  "i", "input",           0,                 AV_OPT_TYPE_CONST,  {.i64=IN_MODE},  0, 0, A, .unit = "mode" },
    {  "o", "output",          0,                 AV_OPT_TYPE_CONST,  {.i64=OUT_MODE}, 0, 0, A, .unit = "mode" },
    {  "e", "ess",             0,                 AV_OPT_TYPE_CONST,  {.i64=ESS_MODE}, 0, 0, A, .unit = "mode" },
    { NULL }
}

Definition at line 59 of file af_deesser.c.

inputs

const AVFilterPad inputs[]

static

Initial value:

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

Definition at line 188 of file af_deesser.c.

ff_af_deesser

const AVFilter ff_af_deesser

Initial value:

= {
    .name          = "deesser",
    .description   = NULL_IF_CONFIG_SMALL("Apply de-essing to the audio."),
    .priv_size     = sizeof(DeesserContext),
    .priv_class    = &deesser_class,
    .uninit        = uninit,
    FILTER_INPUTS(inputs),
    FILTER_OUTPUTS(ff_audio_default_filterpad),
    FILTER_SINGLE_SAMPLEFMT(AV_SAMPLE_FMT_DBLP),
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
}

Definition at line 197 of file af_deesser.c.