af_vibrato.c File Reference

#include "libavutil/opt.h"
#include "avfilter.h"
#include "internal.h"
#include "audio.h"
#include "generate_wave_table.h"

Go to the source code of this file.

Data Structures
struct	VibratoContext

Macros
#define	OFFSET(x)   offsetof(VibratoContext, x)
#define	FLAGS   AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

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

Variables
static const AVOption	vibrato_options []
static const AVFilterPad	avfilter_af_vibrato_inputs []
const AVFilter	ff_af_vibrato

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

offsetof(VibratoContext, x)

Definition at line 42 of file af_vibrato.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

Definition at line 43 of file af_vibrato.c.

Function Documentation

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

vibrato

)

filter_frame()

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

static

Definition at line 53 of file af_vibrato.c.

uninit()

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 120 of file af_vibrato.c.

config_input()

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 131 of file af_vibrato.c.

Variable Documentation

vibrato_options

const AVOption vibrato_options[]

static

Initial value:

= {
    { "f", "set frequency in hertz",    OFFSET(freq),    AV_OPT_TYPE_DOUBLE,   {.dbl = 5.0},   0.1,   20000.0, FLAGS },
    { "d", "set depth as percentage",   OFFSET(depth),   AV_OPT_TYPE_DOUBLE,   {.dbl = 0.5},   0.00,  1.0,     FLAGS },
    { NULL }
}

Definition at line 45 of file af_vibrato.c.

avfilter_af_vibrato_inputs

const AVFilterPad avfilter_af_vibrato_inputs[]

static

Initial value:

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

Definition at line 159 of file af_vibrato.c.

ff_af_vibrato

const AVFilter ff_af_vibrato

Initial value:

= {
    .name          = "vibrato",
    .description   = NULL_IF_CONFIG_SMALL("Apply vibrato effect."),
    .priv_size     = sizeof(VibratoContext),
    .priv_class    = &vibrato_class,
    .uninit        = uninit,
    FILTER_INPUTS(avfilter_af_vibrato_inputs),
    FILTER_OUTPUTS(ff_audio_default_filterpad),
    FILTER_SINGLE_SAMPLEFMT(AV_SAMPLE_FMT_DBLP),
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
}

Definition at line 168 of file af_vibrato.c.