af_crystalizer.c File Reference

#include "libavutil/channel_layout.h"
#include "libavutil/opt.h"
#include "avfilter.h"
#include "audio.h"
#include "formats.h"

Go to the source code of this file.

Data Structures
struct	CrystalizerContext

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

Functions
	AVFILTER_DEFINE_CLASS (crystalizer)
static int	query_formats (AVFilterContext *ctx)
static void	filter_flt (void **d, void **p, const void **s, int nb_samples, int channels, float mult, int clip)
static void	filter_dbl (void **d, void **p, const void **s, int nb_samples, int channels, float mult, int clip)
static void	filter_fltp (void **d, void **p, const void **s, int nb_samples, int channels, float mult, int clip)
static void	filter_dblp (void **d, void **p, const void **s, int nb_samples, int channels, float mult, int clip)
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	crystalizer_options []
static const AVFilterPad	inputs []
static const AVFilterPad	outputs []
AVFilter	ff_af_crystalizer

Macro Definition Documentation

#define OFFSET

(

x

)

offsetof(CrystalizerContext, x)

Definition at line 36 of file af_crystalizer.c.

#define A   AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

Definition at line 37 of file af_crystalizer.c.

Function Documentation

AVFILTER_DEFINE_CLASS

(

crystalizer

)

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 47 of file af_crystalizer.c.

static void filter_flt ( void **  d, void **  p, const void **  s, int  nb_samples, int  channels, float  mult, int  clip  )

static

Definition at line 77 of file af_crystalizer.c.

Referenced by config_input().

static void filter_dbl ( void **  d, void **  p, const void **  s, int  nb_samples, int  channels, float  mult, int  clip  )

static

Definition at line 102 of file af_crystalizer.c.

Referenced by config_input().

static void filter_fltp ( void **  d, void **  p, const void **  s, int  nb_samples, int  channels, float  mult, int  clip  )

static

Definition at line 127 of file af_crystalizer.c.

Referenced by config_input().

static void filter_dblp ( void **  d, void **  p, const void **  s, int  nb_samples, int  channels, float  mult, int  clip  )

static

Definition at line 150 of file af_crystalizer.c.

Referenced by config_input().

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 173 of file af_crystalizer.c.

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

static

Definition at line 188 of file af_crystalizer.c.

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 223 of file af_crystalizer.c.

Variable Documentation

const AVOption crystalizer_options[]

static

Initial value:

= {
    { "i", "set intensity",    OFFSET(mult), AV_OPT_TYPE_FLOAT, {.dbl=2.0}, 0, 10, A },
    { "c", "enable clipping",  OFFSET(clip), AV_OPT_TYPE_BOOL,  {.i64=1},   0,  1, A },
    { NULL }
}

Definition at line 39 of file af_crystalizer.c.

const AVFilterPad inputs[]

static

Initial value:

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

Definition at line 230 of file af_crystalizer.c.

const AVFilterPad outputs[]

static

Initial value:

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

Definition at line 240 of file af_crystalizer.c.

AVFilter ff_af_crystalizer

Initial value:

= {
    .name           = "crystalizer",
    .description    = NULL_IF_CONFIG_SMALL("Simple expand audio dynamic range filter."),
    .query_formats  = query_formats,
    .priv_size      = sizeof(CrystalizerContext),
    .priv_class     = &crystalizer_class,
    .uninit         = uninit,
    .inputs         = inputs,
    .outputs        = outputs,
}

Definition at line 248 of file af_crystalizer.c.