af_bs2b.c File Reference

Bauer stereo-to-binaural filter. More...

#include <bs2b.h>
#include "libavutil/channel_layout.h"
#include "libavutil/common.h"
#include "libavutil/opt.h"
#include "audio.h"
#include "avfilter.h"
#include "filters.h"
#include "formats.h"

Go to the source code of this file.

Data Structures
struct	Bs2bContext

Macros
#define	OFFSET(x)
#define	A   AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_FILTERING_PARAM

Typedefs
typedef void(*	filter_func) (t_bs2bdp bs2bdp, uint8_t *sample, int n)

Functions
	AVFILTER_DEFINE_CLASS (bs2b)
static av_cold int	init (AVFilterContext *ctx)
static av_cold void	uninit (AVFilterContext *ctx)
static int	query_formats (const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out)
static int	filter_frame (AVFilterLink *inlink, AVFrame *frame)
static int	config_output (AVFilterLink *outlink)

Variables
static const AVOption	bs2b_options []
static const AVFilterPad	bs2b_inputs []
static const AVFilterPad	bs2b_outputs []
const FFFilter	ff_af_bs2b

Detailed Description

Bauer stereo-to-binaural filter.

Definition in file af_bs2b.c.

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

Value:

offsetof(Bs2bContext, x)

Definition at line 49 of file af_bs2b.c.

A

#define A   AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_FILTERING_PARAM

Definition at line 50 of file af_bs2b.c.

Typedef Documentation

filter_func

typedef void(* filter_func) (t_bs2bdp bs2bdp, uint8_t *sample, int n)

Definition at line 35 of file af_bs2b.c.

Function Documentation

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

bs2b

)

init()

static av_cold int init ( AVFilterContext * ctx )

static

Definition at line 67 of file af_bs2b.c.

uninit()

static av_cold void uninit ( AVFilterContext * ctx )

static

Definition at line 85 of file af_bs2b.c.

query_formats()

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

static

Definition at line 93 of file af_bs2b.c.

filter_frame()

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

static

Definition at line 123 of file af_bs2b.c.

config_output()

static int config_output ( AVFilterLink * outlink )

static

Definition at line 156 of file af_bs2b.c.

Variable Documentation

bs2b_options

const AVOption bs2b_options[]

static

Initial value:

= {
    { "profile", "Apply a pre-defined crossfeed level",
            OFFSET(profile), AV_OPT_TYPE_INT, { .i64 = BS2B_DEFAULT_CLEVEL }, 0, INT_MAX, A, .unit = "profile" },
        { "default", "default profile", 0, AV_OPT_TYPE_CONST, { .i64 = BS2B_DEFAULT_CLEVEL }, 0, 0, A, .unit = "profile" },
        { "cmoy",    "Chu Moy circuit", 0, AV_OPT_TYPE_CONST, { .i64 = BS2B_CMOY_CLEVEL    }, 0, 0, A, .unit = "profile" },
        { "jmeier",  "Jan Meier circuit", 0, AV_OPT_TYPE_CONST, { .i64 = BS2B_JMEIER_CLEVEL  }, 0, 0, A, .unit = "profile" },
    { "fcut", "Set cut frequency (in Hz)",
            OFFSET(fcut), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, BS2B_MAXFCUT, A },
    { "feed", "Set feed level (in Hz)",
            OFFSET(feed), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, BS2B_MAXFEED, A },
    { NULL },
}

Definition at line 52 of file af_bs2b.c.

bs2b_inputs

const AVFilterPad bs2b_inputs[]

static

Initial value:

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

Definition at line 192 of file af_bs2b.c.

bs2b_outputs

const AVFilterPad bs2b_outputs[]

static

Initial value:

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

Definition at line 200 of file af_bs2b.c.

ff_af_bs2b

const FFFilter ff_af_bs2b

Initial value:

= {
    .p.name         = "bs2b",
    .p.description  = NULL_IF_CONFIG_SMALL("Bauer stereo-to-binaural filter."),
    .p.priv_class   = &bs2b_class,
    .priv_size      = sizeof(Bs2bContext),
    .init           = init,
    .uninit         = uninit,
    FILTER_INPUTS(bs2b_inputs),
    FILTER_OUTPUTS(bs2b_outputs),
    FILTER_QUERY_FUNC2(query_formats),
}

Definition at line 208 of file af_bs2b.c.