af_sofalizer.c File Reference

#include <math.h>
#include <mysofa.h>
#include "libavcodec/avfft.h"
#include "libavutil/avstring.h"
#include "libavutil/channel_layout.h"
#include "libavutil/float_dsp.h"
#include "libavutil/intmath.h"
#include "libavutil/opt.h"
#include "avfilter.h"
#include "filters.h"
#include "internal.h"
#include "audio.h"

Go to the source code of this file.

Data Structures
struct	MySofa
struct	VirtualSpeaker
struct	SOFAlizerContext
struct	ThreadData
	Used for passing data between threads. More...

Macros
#define	TIME_DOMAIN   0
#define	FREQUENCY_DOMAIN   1
#define	OFFSET(x)   offsetof(SOFAlizerContext, x)
#define	FLAGS   AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

Functions
static int	close_sofa (struct MySofa *sofa)
static int	preload_sofa (AVFilterContext *ctx, char *filename, int *samplingrate)
static int	parse_channel_name (AVFilterContext *ctx, char **arg, int *rchannel)
static void	parse_speaker_pos (AVFilterContext *ctx, int64_t in_channel_layout)
static int	get_speaker_pos (AVFilterContext *ctx, float *speaker_azim, float *speaker_elev)
static int	sofalizer_convolute (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	sofalizer_fast_convolute (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	filter_frame (AVFilterLink *inlink, AVFrame *in)
static int	activate (AVFilterContext *ctx)
static int	query_formats (AVFilterContext *ctx)
static int	getfilter_float (AVFilterContext *ctx, float x, float y, float z, float *left, float *right, float *delay_left, float *delay_right)
static int	load_data (AVFilterContext *ctx, int azim, int elev, float radius, int sample_rate)
static av_cold int	init (AVFilterContext *ctx)
static int	config_input (AVFilterLink *inlink)
static av_cold void	uninit (AVFilterContext *ctx)
	AVFILTER_DEFINE_CLASS (sofalizer)

Variables
static const AVOption	sofalizer_options []
static const AVFilterPad	inputs []
static const AVFilterPad	outputs []
AVFilter	ff_af_sofalizer

Macro Definition Documentation

TIME_DOMAIN

#define TIME_DOMAIN   0

Definition at line 42 of file af_sofalizer.c.

FREQUENCY_DOMAIN

#define FREQUENCY_DOMAIN   1

Definition at line 43 of file af_sofalizer.c.

OFFSET

#define OFFSET

(

x

)

offsetof(SOFAlizerContext, x)

Definition at line 1053 of file af_sofalizer.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

Definition at line 1054 of file af_sofalizer.c.

Function Documentation

close_sofa()

static int close_sofa ( struct MySofa *  sofa )

static

Definition at line 117 of file af_sofalizer.c.

Referenced by uninit().

preload_sofa()

static int preload_sofa ( AVFilterContext *  ctx, char *  filename, int *  samplingrate  )

static

Definition at line 133 of file af_sofalizer.c.

Referenced by init().

parse_channel_name()

static int parse_channel_name ( AVFilterContext *  ctx, char **  arg, int *  rchannel  )

static

Definition at line 186 of file af_sofalizer.c.

Referenced by parse_speaker_pos().

parse_speaker_pos()

static void parse_speaker_pos ( AVFilterContext *  ctx, int64_t  in_channel_layout  )

static

Definition at line 222 of file af_sofalizer.c.

Referenced by get_speaker_pos().

get_speaker_pos()

static int get_speaker_pos ( AVFilterContext *  ctx, float *  speaker_azim, float *  speaker_elev  )

static

Definition at line 253 of file af_sofalizer.c.

Referenced by load_data().

sofalizer_convolute()

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

static

Definition at line 340 of file af_sofalizer.c.

Referenced by filter_frame().

sofalizer_fast_convolute()

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

static

Definition at line 440 of file af_sofalizer.c.

Referenced by filter_frame().

filter_frame()

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

static

Definition at line 578 of file af_sofalizer.c.

Referenced by activate().

activate()

static int activate ( AVFilterContext *  ctx )

static

Definition at line 617 of file af_sofalizer.c.

query_formats()

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 642 of file af_sofalizer.c.

getfilter_float()

static int getfilter_float ( AVFilterContext *  ctx, float  x, float  y, float  z, float *  left, float *  right, float *  delay_left, float *  delay_right  )

static

Definition at line 684 of file af_sofalizer.c.

Referenced by load_data().

load_data()

static int load_data ( AVFilterContext *  ctx, int  azim, int  elev, float  radius, int  sample_rate  )

static

Definition at line 728 of file af_sofalizer.c.

Referenced by config_input().

init()

static av_cold int init ( AVFilterContext *  ctx )

static

Definition at line 966 of file af_sofalizer.c.

config_input()

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 997 of file af_sofalizer.c.

uninit()

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 1021 of file af_sofalizer.c.

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

sofalizer

)

Variable Documentation

sofalizer_options

const AVOption sofalizer_options[]

static

Initial value:

= {
    { "sofa",      "sofa filename",  OFFSET(filename),  AV_OPT_TYPE_STRING, {.str=NULL},            .flags = FLAGS },
    { "gain",      "set gain in dB", OFFSET(gain),      AV_OPT_TYPE_FLOAT,  {.dbl=0},     -20,  40, .flags = FLAGS },
    { "rotation",  "set rotation"  , OFFSET(rotation),  AV_OPT_TYPE_FLOAT,  {.dbl=0},    -360, 360, .flags = FLAGS },
    { "elevation", "set elevation",  OFFSET(elevation), AV_OPT_TYPE_FLOAT,  {.dbl=0},     -90,  90, .flags = FLAGS },
    { "radius",    "set radius",     OFFSET(radius),    AV_OPT_TYPE_FLOAT,  {.dbl=1},       0,   5, .flags = FLAGS },
    { "type",      "set processing", OFFSET(type),      AV_OPT_TYPE_INT,    {.i64=1},       0,   1, .flags = FLAGS, "type" },
    { "time",      "time domain",      0,               AV_OPT_TYPE_CONST,  {.i64=0},       0,   0, .flags = FLAGS, "type" },
    { "freq",      "frequency domain", 0,               AV_OPT_TYPE_CONST,  {.i64=1},       0,   0, .flags = FLAGS, "type" },
    { "speakers",  "set speaker custom positions", OFFSET(speakers_pos), AV_OPT_TYPE_STRING,  {.str=0},    0, 0, .flags = FLAGS },
    { "lfegain",   "set lfe gain",                 OFFSET(lfe_gain),     AV_OPT_TYPE_FLOAT,   {.dbl=0},  -20,40, .flags = FLAGS },
    { "framesize", "set frame size", OFFSET(framesize), AV_OPT_TYPE_INT,    {.i64=1024},1024,96000, .flags = FLAGS },
    { "normalize", "normalize IRs",  OFFSET(normalize), AV_OPT_TYPE_BOOL,   {.i64=1},       0,   1, .flags = FLAGS },
    { "interpolate","interpolate IRs from neighbors",   OFFSET(interpolate),AV_OPT_TYPE_BOOL,    {.i64=0},       0,   1, .flags = FLAGS },
    { "minphase",  "minphase IRs",   OFFSET(minphase),  AV_OPT_TYPE_BOOL,   {.i64=0},       0,   1, .flags = FLAGS },
    { "anglestep", "set neighbor search angle step",    OFFSET(anglestep),  AV_OPT_TYPE_FLOAT,   {.dbl=.5},      0.01, 10, .flags = FLAGS },
    { "radstep",   "set neighbor search radius step",   OFFSET(radstep),    AV_OPT_TYPE_FLOAT,   {.dbl=.01},     0.01,  1, .flags = FLAGS },
    { NULL }
}

Definition at line 1056 of file af_sofalizer.c.

inputs

const AVFilterPad inputs[]

static

Initial value:

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

Definition at line 1078 of file af_sofalizer.c.

outputs

const AVFilterPad outputs[]

static

Initial value:

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

Definition at line 1087 of file af_sofalizer.c.

ff_af_sofalizer

AVFilter ff_af_sofalizer

Initial value:

= {
    .name          = "sofalizer",
    .description   = NULL_IF_CONFIG_SMALL("SOFAlizer (Spatially Oriented Format for Acoustics)."),
    .priv_size     = sizeof(SOFAlizerContext),
    .priv_class    = &sofalizer_class,
    .init          = init,
    .activate      = activate,
    .uninit        = uninit,
    .query_formats = query_formats,
    .inputs        = inputs,
    .outputs       = outputs,
    .flags         = AVFILTER_FLAG_SLICE_THREADS,
}

Definition at line 1095 of file af_sofalizer.c.