af_adynamicequalizer.c File Reference

#include <float.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	AudioDynamicEqualizerContext
struct	ThreadData
	Used for passing data between threads. More...

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

Functions
static int	config_input (AVFilterLink *inlink)
static double	get_svf (double in, double *m, double *a, double *b)
static int	filter_channels (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static double	get_coef (double x, double sr)
static int	filter_frame (AVFilterLink *inlink, AVFrame *in)
static av_cold void	uninit (AVFilterContext *ctx)
	AVFILTER_DEFINE_CLASS (adynamicequalizer)

Variables
static const AVOption	adynamicequalizer_options []
static const AVFilterPad	inputs []
static const AVFilterPad	outputs []
const AVFilter	ff_af_adynamicequalizer

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

offsetof(AudioDynamicEqualizerContext, x)

Definition at line 264 of file af_adynamicequalizer.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM

Definition at line 265 of file af_adynamicequalizer.c.

Function Documentation

config_input()

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 49 of file af_adynamicequalizer.c.

get_svf()

static double get_svf ( double  in, double *  m, double *  a, double *  b  )

static

Definition at line 67 of file af_adynamicequalizer.c.

Referenced by filter_channels().

filter_channels()

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

static

Definition at line 84 of file af_adynamicequalizer.c.

Referenced by filter_frame().

get_coef()

static double get_coef ( double  x, double  sr  )

static

Definition at line 220 of file af_adynamicequalizer.c.

Referenced by filter_frame().

filter_frame()

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

static

Definition at line 225 of file af_adynamicequalizer.c.

uninit()

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 257 of file af_adynamicequalizer.c.

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

adynamicequalizer

)

Variable Documentation

adynamicequalizer_options

const AVOption adynamicequalizer_options[]

static

Initial value:

= {
    { "threshold",  "set detection threshold", OFFSET(threshold),  AV_OPT_TYPE_DOUBLE, {.dbl=0},        0, 100,     FLAGS },
    { "dfrequency", "set detection frequency", OFFSET(dfrequency), AV_OPT_TYPE_DOUBLE, {.dbl=1000},     2, 1000000, FLAGS },
    { "dqfactor",   "set detection Q factor",  OFFSET(dqfactor),   AV_OPT_TYPE_DOUBLE, {.dbl=1},    0.001, 1000,    FLAGS },
    { "tfrequency", "set target frequency",    OFFSET(tfrequency), AV_OPT_TYPE_DOUBLE, {.dbl=1000},     2, 1000000, FLAGS },
    { "tqfactor",   "set target Q factor",     OFFSET(tqfactor),   AV_OPT_TYPE_DOUBLE, {.dbl=1},    0.001, 1000,    FLAGS },
    { "attack",     "set attack duration",     OFFSET(attack),     AV_OPT_TYPE_DOUBLE, {.dbl=20},       1, 2000,    FLAGS },
    { "release",    "set release duration",    OFFSET(release),    AV_OPT_TYPE_DOUBLE, {.dbl=200},      1, 2000,    FLAGS },
    { "ratio",      "set ratio factor",        OFFSET(ratio),      AV_OPT_TYPE_DOUBLE, {.dbl=1},        0, 30,      FLAGS },
    { "makeup",     "set makeup gain",         OFFSET(makeup),     AV_OPT_TYPE_DOUBLE, {.dbl=0},        0, 100,     FLAGS },
    { "range",      "set max gain",            OFFSET(range),      AV_OPT_TYPE_DOUBLE, {.dbl=50},       1, 200,     FLAGS },
    { "mode",       "set mode",                OFFSET(mode),       AV_OPT_TYPE_INT,    {.i64=0},       -1, 1,       FLAGS, "mode" },
    {   "listen",   0,                         0,                  AV_OPT_TYPE_CONST,  {.i64=-1},       0, 0,       FLAGS, "mode" },
    {   "cut",      0,                         0,                  AV_OPT_TYPE_CONST,  {.i64=0},        0, 0,       FLAGS, "mode" },
    {   "boost",    0,                         0,                  AV_OPT_TYPE_CONST,  {.i64=1},        0, 0,       FLAGS, "mode" },
    { "tftype",     "set target filter type",  OFFSET(type),       AV_OPT_TYPE_INT,    {.i64=0},        0, 2,       FLAGS, "type" },
    {   "bell",     0,                         0,                  AV_OPT_TYPE_CONST,  {.i64=0},        0, 0,       FLAGS, "type" },
    {   "lowshelf", 0,                         0,                  AV_OPT_TYPE_CONST,  {.i64=1},        0, 0,       FLAGS, "type" },
    {   "highshelf",0,                         0,                  AV_OPT_TYPE_CONST,  {.i64=2},        0, 0,       FLAGS, "type" },
    { "direction",  "set direction",           OFFSET(direction),  AV_OPT_TYPE_INT,    {.i64=0},        0, 1,       FLAGS, "direction" },
    {   "downward", 0,                         0,                  AV_OPT_TYPE_CONST,  {.i64=0},        0, 0,       FLAGS, "direction" },
    {   "upward",   0,                         0,                  AV_OPT_TYPE_CONST,  {.i64=1},        0, 0,       FLAGS, "direction" },
    { "auto",       "set auto threshold",      OFFSET(detection),  AV_OPT_TYPE_INT,    {.i64=-1},      -1, 1,       FLAGS, "auto" },
    {   "disabled", 0,                         0,                  AV_OPT_TYPE_CONST,  {.i64=-1},       0, 0,       FLAGS, "auto" },
    {   "off",      0,                         0,                  AV_OPT_TYPE_CONST,  {.i64=0},        0, 0,       FLAGS, "auto" },
    {   "on",       0,                         0,                  AV_OPT_TYPE_CONST,  {.i64=1},        0, 0,       FLAGS, "auto" },
    { NULL }
}

Definition at line 267 of file af_adynamicequalizer.c.

inputs

const AVFilterPad inputs[]

static

Initial value:

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

Definition at line 298 of file af_adynamicequalizer.c.

outputs

const AVFilterPad outputs[]

static

Initial value:

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

Definition at line 307 of file af_adynamicequalizer.c.

ff_af_adynamicequalizer

const AVFilter ff_af_adynamicequalizer

Initial value:

= {
    .name            = "adynamicequalizer",
    .description     = NULL_IF_CONFIG_SMALL("Apply Dynamic Equalization of input audio."),
    .priv_size       = sizeof(AudioDynamicEqualizerContext),
    .priv_class      = &adynamicequalizer_class,
    .uninit          = uninit,
    FILTER_INPUTS(inputs),
    FILTER_OUTPUTS(outputs),
    FILTER_SINGLE_SAMPLEFMT(AV_SAMPLE_FMT_DBLP),
    .flags           = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL |
                       AVFILTER_FLAG_SLICE_THREADS,
    .process_command = ff_filter_process_command,
}

Definition at line 314 of file af_adynamicequalizer.c.