af_arls.c File Reference

#include "libavutil/common.h"
#include "libavutil/float_dsp.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "audio.h"
#include "avfilter.h"
#include "formats.h"
#include "filters.h"
#include "arls_template.c"

Go to the source code of this file.

Data Structures
struct	AudioRLSContext

Macros
#define	OFFSET(x)
#define	A   AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
#define	AT   AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
#define	DEPTH   32
#define	DEPTH   64

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

Functions
	AVFILTER_DEFINE_CLASS (arls)
static int	query_formats (const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out)
static int	activate (AVFilterContext *ctx)
static int	config_output (AVFilterLink *outlink)
static av_cold int	init (AVFilterContext *ctx)
static av_cold void	uninit (AVFilterContext *ctx)

Variables
static const AVOption	arls_options []
static const AVFilterPad	inputs []
static const AVFilterPad	outputs []
const FFFilter	ff_af_arls

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

Value:

offsetof(AudioRLSContext, x)

Definition at line 64 of file af_arls.c.

A

#define A   AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

Definition at line 65 of file af_arls.c.

AT

#define AT   AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM

Definition at line 66 of file af_arls.c.

DEPTH [1/2]

#define DEPTH   32

Definition at line 172 of file af_arls.c.

DEPTH [2/2]

#define DEPTH   64

Definition at line 172 of file af_arls.c.

Enumeration Type Documentation

OutModes

enum OutModes

Enumerator
IN_MODE
DESIRED_MODE
OUT_MODE
NOISE_MODE
ERROR_MODE
NB_OMODES

Definition at line 31 of file af_arls.c.

Function Documentation

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

arls

)

query_formats()

static int query_formats ( const AVFilterContext * ctx, AVFilterFormatsConfig ** cfg_in, AVFilterFormatsConfig ** cfg_out )

static

Definition at line 87 of file af_arls.c.

activate()

static int activate ( AVFilterContext * ctx )

static

Definition at line 106 of file af_arls.c.

config_output()

static int config_output ( AVFilterLink * outlink )

static

Definition at line 179 of file af_arls.c.

init()

static av_cold int init ( AVFilterContext * ctx )

static

Definition at line 239 of file af_arls.c.

uninit()

static av_cold void uninit ( AVFilterContext * ctx )

static

Definition at line 250 of file af_arls.c.

Variable Documentation

arls_options

const AVOption arls_options[]

static

Initial value:

= {
    { "order",    "set the filter order",  OFFSET(order),  AV_OPT_TYPE_INT,   {.i64=16}, 1, INT16_MAX, A },
    { "lambda",   "set the filter lambda", OFFSET(lambda), AV_OPT_TYPE_FLOAT, {.dbl=1.f}, 0, 1, AT },
    { "delta",    "set the filter delta",  OFFSET(delta),  AV_OPT_TYPE_FLOAT, {.dbl=2.f}, 0, INT16_MAX, A },
    { "out_mode", "set output mode",       OFFSET(output_mode), AV_OPT_TYPE_INT, {.i64=OUT_MODE}, 0, NB_OMODES-1, AT, .unit = "mode" },
    {  "i", "input",   0, AV_OPT_TYPE_CONST, {.i64=IN_MODE},      0, 0, AT, .unit = "mode" },
    {  "d", "desired", 0, AV_OPT_TYPE_CONST, {.i64=DESIRED_MODE}, 0, 0, AT, .unit = "mode" },
    {  "o", "output",  0, AV_OPT_TYPE_CONST, {.i64=OUT_MODE},     0, 0, AT, .unit = "mode" },
    {  "n", "noise",   0, AV_OPT_TYPE_CONST, {.i64=NOISE_MODE},   0, 0, AT, .unit = "mode" },
    {  "e", "error",   0, AV_OPT_TYPE_CONST, {.i64=ERROR_MODE},   0, 0, AT, .unit = "mode" },
    { "precision", "set processing precision", OFFSET(precision),  AV_OPT_TYPE_INT,    {.i64=0},   0, 2, A, .unit = "precision" },
    {   "auto",  "set auto processing precision",                  0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, A, .unit = "precision" },
    {   "float", "set single-floating point processing precision", 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, A, .unit = "precision" },
    {   "double","set double-floating point processing precision", 0, AV_OPT_TYPE_CONST, {.i64=2}, 0, 0, A, .unit = "precision" },
    { NULL }
}

Definition at line 68 of file af_arls.c.

inputs

const AVFilterPad inputs[]

static

Initial value:

= {
    {
        .name = "input",
        .type = AVMEDIA_TYPE_AUDIO,
    },
    {
        .name = "desired",
        .type = AVMEDIA_TYPE_AUDIO,
    },
}

Definition at line 265 of file af_arls.c.

outputs

const AVFilterPad outputs[]

static

Initial value:

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

Definition at line 276 of file af_arls.c.

ff_af_arls

const FFFilter ff_af_arls

Initial value:

= {
    .p.name         = "arls",
    .p.description  = NULL_IF_CONFIG_SMALL("Apply Recursive Least Squares algorithm to first audio stream."),
    .p.priv_class   = &arls_class,
    .p.flags        = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL |
                      AVFILTER_FLAG_SLICE_THREADS,
    .priv_size      = sizeof(AudioRLSContext),
    .init           = init,
    .uninit         = uninit,
    .activate       = activate,
    FILTER_INPUTS(inputs),
    FILTER_OUTPUTS(outputs),
    FILTER_QUERY_FUNC2(query_formats),
    .process_command = ff_filter_process_command,
}

Definition at line 284 of file af_arls.c.