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

Data Structures
struct	ADenormContext

struct	ThreadData
	Used for passing data between threads. More...

Macros
#define	OFFSET(x) offsetof(ADenormContext, 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, BUTTERWORTH, CHEBYSHEV1, CHEBYSHEV2, NB_TYPES, biquad, equalizer, bass, treble, bandpass, bandreject, allpass, highpass, lowpass, lowshelf, highshelf, WEAK, STRONG, NB_FILTER, LOWPASS, FLAT, AFLAT, CHROMA, COLOR, ACOLOR, XFLAT, YFLAT, NB_FILTERS }

Functions
static int	query_formats (AVFilterContext *ctx)

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)

static int	process_command (AVFilterContext ctx, const char cmd, const char args, char res, int res_len, int flags)

	AVFILTER_DEFINE_CLASS (adenorm)

Variables
static const AVFilterPad	adenorm_inputs []

static const AVFilterPad	adenorm_outputs []

static const AVOption	adenorm_options []

const AVFilter	ff_af_adenorm

Macro Definition Documentation

◆ OFFSET

#define OFFSET ( x ) offsetof(ADenormContext, x)

Definition at line 306 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 307 of file af_adenorm.c.

Enumeration Type Documentation

◆ FilterType

enum FilterType

Enumerator
DC_TYPE
AC_TYPE
SQ_TYPE
PS_TYPE
NB_TYPES
BUTTERWORTH
CHEBYSHEV1
CHEBYSHEV2
NB_TYPES
biquad
equalizer
bass
treble
bandpass
bandreject
allpass
highpass
lowpass
lowshelf
highshelf
WEAK
STRONG
NB_FILTER
LOWPASS
FLAT
AFLAT
CHROMA
COLOR
ACOLOR
XFLAT
YFLAT
NB_FILTERS

Definition at line 26 of file af_adenorm.c.

Function Documentation

◆ query_formats()

static int query_formats ( AVFilterContext * ctx )

static

Definition at line 46 of file af_adenorm.c.

◆ dc_denorm_fltp()

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

static

Definition at line 75 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 88 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 101 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 115 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 129 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 143 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 157 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 171 of file af_adenorm.c.

Referenced by config_output().

◆ config_output()

static int config_output ( AVFilterLink * outlink )

static

Definition at line 185 of file af_adenorm.c.

Referenced by process_command().

◆ filter_channels()

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

static

Definition at line 226 of file af_adenorm.c.

Referenced by filter_frame().

◆ filter_frame()

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

static

Definition at line 244 of file af_adenorm.c.

◆ process_command()

static int process_command	(	AVFilterContext *	ctx,
		const char *	cmd,
		const char *	args,
		char *	res,
		int	res_len,
		int	flags
	)

static

Definition at line 275 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,
    },
    { NULL }
}

Definition at line 288 of file af_adenorm.c.

◆ adenorm_outputs

const AVFilterPad adenorm_outputs[]

static

Initial value:

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

Definition at line 297 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, "type" },
    { "dc",    NULL,  0, AV_OPT_TYPE_CONST, {.i64=DC_TYPE}, 0, 0, FLAGS, "type"},
    { "ac",    NULL,  0, AV_OPT_TYPE_CONST, {.i64=AC_TYPE}, 0, 0, FLAGS, "type"},
    { "square",NULL,  0, AV_OPT_TYPE_CONST, {.i64=SQ_TYPE}, 0, 0, FLAGS, "type"},
    { "pulse", NULL,  0, AV_OPT_TYPE_CONST, {.i64=PS_TYPE}, 0, 0, FLAGS, "type"},
    { NULL }
}

Definition at line 309 of file af_adenorm.c.

◆ ff_af_adenorm

const AVFilter ff_af_adenorm

Initial value:

= {
    .name            = "adenorm",
    .description     = NULL_IF_CONFIG_SMALL("Remedy denormals by adding extremely low-level noise."),
    .query_formats   = query_formats,
    .priv_size       = sizeof(ADenormContext),
    .inputs          = adenorm_inputs,
    .outputs         = adenorm_outputs,
    .priv_class      = &adenorm_class,
    .process_command = process_command,
    .flags           = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC |
                       AVFILTER_FLAG_SLICE_THREADS,
}

Definition at line 321 of file af_adenorm.c.

Data Structures

Macros

Enumerations

Functions

Variables

Macro Definition Documentation

◆ OFFSET

◆ FLAGS

Enumeration Type Documentation

◆ FilterType

Function Documentation

◆ query_formats()

◆ dc_denorm_fltp()

◆ dc_denorm_dblp()

◆ ac_denorm_fltp()

◆ ac_denorm_dblp()

◆ sq_denorm_fltp()

◆ sq_denorm_dblp()

◆ ps_denorm_fltp()

◆ ps_denorm_dblp()

◆ config_output()

◆ filter_channels()

◆ filter_frame()

◆ process_command()

◆ AVFILTER_DEFINE_CLASS()

Variable Documentation

◆ adenorm_inputs

◆ adenorm_outputs

◆ adenorm_options

◆ ff_af_adenorm