af_adenorm.c File Reference

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

Go to the source code of this file.

Data Structures
struct	ADenormContext
struct	ThreadData
	Used for passing data between threads. More...

Macros
#define	OFFSET(x)
#define	FLAGS   AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM

Enumerations
enum	FilterType {   DC_TYPE , AC_TYPE , SQ_TYPE , PS_TYPE ,   NB_TYPES }

Functions
static void	dc_denorm_fltp (AVFilterContext *ctx, void *dstp, const void *srcp, int nb_samples)
static void	dc_denorm_dblp (AVFilterContext *ctx, void *dstp, const void *srcp, int nb_samples)
static void	ac_denorm_fltp (AVFilterContext *ctx, void *dstp, const void *srcp, int nb_samples)
static void	ac_denorm_dblp (AVFilterContext *ctx, void *dstp, const void *srcp, int nb_samples)
static void	sq_denorm_fltp (AVFilterContext *ctx, void *dstp, const void *srcp, int nb_samples)
static void	sq_denorm_dblp (AVFilterContext *ctx, void *dstp, const void *srcp, int nb_samples)
static void	ps_denorm_fltp (AVFilterContext *ctx, void *dstp, const void *srcp, int nb_samples)
static void	ps_denorm_dblp (AVFilterContext *ctx, void *dstp, const void *srcp, int nb_samples)
static int	config_output (AVFilterLink *outlink)
static int	filter_channels (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	filter_frame (AVFilterLink *inlink, AVFrame *in)
	AVFILTER_DEFINE_CLASS (adenorm)

Variables
static const AVFilterPad	adenorm_inputs []
static const AVFilterPad	adenorm_outputs []
static const AVOption	adenorm_options []
const FFFilter	ff_af_adenorm

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

Value:

offsetof(ADenormContext, x)

Definition at line 250 of file af_adenorm.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM

Definition at line 251 of file af_adenorm.c.

Enumeration Type Documentation

FilterType

enum FilterType

Enumerator
DC_TYPE
AC_TYPE
SQ_TYPE
PS_TYPE
NB_TYPES

Definition at line 26 of file af_adenorm.c.

Function Documentation

dc_denorm_fltp()

static void dc_denorm_fltp ( AVFilterContext * ctx, void * dstp, const void * srcp, int nb_samples )

static

Definition at line 46 of file af_adenorm.c.

Referenced by config_output().

dc_denorm_dblp()

static void dc_denorm_dblp ( AVFilterContext * ctx, void * dstp, const void * srcp, int nb_samples )

static

Definition at line 59 of file af_adenorm.c.

Referenced by config_output().

ac_denorm_fltp()

static void ac_denorm_fltp ( AVFilterContext * ctx, void * dstp, const void * srcp, int nb_samples )

static

Definition at line 72 of file af_adenorm.c.

Referenced by config_output().

ac_denorm_dblp()

static void ac_denorm_dblp ( AVFilterContext * ctx, void * dstp, const void * srcp, int nb_samples )

static

Definition at line 86 of file af_adenorm.c.

Referenced by config_output().

sq_denorm_fltp()

static void sq_denorm_fltp ( AVFilterContext * ctx, void * dstp, const void * srcp, int nb_samples )

static

Definition at line 100 of file af_adenorm.c.

Referenced by config_output().

sq_denorm_dblp()

static void sq_denorm_dblp ( AVFilterContext * ctx, void * dstp, const void * srcp, int nb_samples )

static

Definition at line 114 of file af_adenorm.c.

Referenced by config_output().

ps_denorm_fltp()

static void ps_denorm_fltp ( AVFilterContext * ctx, void * dstp, const void * srcp, int nb_samples )

static

Definition at line 128 of file af_adenorm.c.

Referenced by config_output().

ps_denorm_dblp()

static void ps_denorm_dblp ( AVFilterContext * ctx, void * dstp, const void * srcp, int nb_samples )

static

Definition at line 142 of file af_adenorm.c.

Referenced by config_output().

config_output()

static int config_output ( AVFilterLink * outlink )

static

Definition at line 156 of file af_adenorm.c.

filter_channels()

static int filter_channels ( AVFilterContext * ctx, void * arg, int jobnr, int nb_jobs )

static

Definition at line 185 of file af_adenorm.c.

filter_frame()

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

static

Definition at line 203 of file af_adenorm.c.

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

adenorm

)

Variable Documentation

adenorm_inputs

const AVFilterPad adenorm_inputs[]

static

Initial value:

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

Definition at line 234 of file af_adenorm.c.

adenorm_outputs

const AVFilterPad adenorm_outputs[]

static

Initial value:

= {
    {
        .name         = "default",
        .type         = AVMEDIA_TYPE_AUDIO,
        .config_props = config_output,
    },
}

Definition at line 242 of file af_adenorm.c.

adenorm_options

const AVOption adenorm_options[]

static

Initial value:

= {
    { "level", "set level", OFFSET(level_db), AV_OPT_TYPE_DOUBLE, {.dbl=-351},   -451,        -90, FLAGS },
    { "type",  "set type",  OFFSET(type),     AV_OPT_TYPE_INT,    {.i64=DC_TYPE},   0, NB_TYPES-1, FLAGS, .unit = "type" },
    { "dc",    NULL,  0, AV_OPT_TYPE_CONST, {.i64=DC_TYPE}, 0, 0, FLAGS, .unit = "type"},
    { "ac",    NULL,  0, AV_OPT_TYPE_CONST, {.i64=AC_TYPE}, 0, 0, FLAGS, .unit = "type"},
    { "square",NULL,  0, AV_OPT_TYPE_CONST, {.i64=SQ_TYPE}, 0, 0, FLAGS, .unit = "type"},
    { "pulse", NULL,  0, AV_OPT_TYPE_CONST, {.i64=PS_TYPE}, 0, 0, FLAGS, .unit = "type"},
    { NULL }
}

Definition at line 253 of file af_adenorm.c.

ff_af_adenorm

const FFFilter ff_af_adenorm

Initial value:

= {
    .p.name          = "adenorm",
    .p.description   = NULL_IF_CONFIG_SMALL("Remedy denormals by adding extremely low-level noise."),
    .p.priv_class    = &adenorm_class,
    .p.flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC |
                       AVFILTER_FLAG_SLICE_THREADS,
    .priv_size       = sizeof(ADenormContext),
    FILTER_INPUTS(adenorm_inputs),
    FILTER_OUTPUTS(adenorm_outputs),
    FILTER_SAMPLEFMTS(AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_DBLP),
    .process_command = ff_filter_process_command,
}

Definition at line 265 of file af_adenorm.c.