af_sofalizer.c File Reference

#include <math.h>
#include <netcdf.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 "internal.h"
#include "audio.h"

Go to the source code of this file.

Data Structures
struct	NCSofa
struct	VirtualSpeaker
struct	SOFAlizerContext
struct	ThreadData

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 NCSofa *sofa)
static int	load_sofa (AVFilterContext *ctx, char *filename, int *samplingrate)
static int	parse_channel_name (char **arg, int *rchannel, char *buf)
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	max_delay (struct NCSofa *sofa)
static int	find_m (SOFAlizerContext *s, int azim, int elev, float radius)
static int	compensate_volume (AVFilterContext *ctx)
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	query_formats (AVFilterContext *ctx)
static int	load_data (AVFilterContext *ctx, int azim, int elev, float radius)
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

#define TIME_DOMAIN   0

Definition at line 41 of file af_sofalizer.c.

Referenced by config_input(), filter_frame(), and load_data().

#define FREQUENCY_DOMAIN   1

Definition at line 42 of file af_sofalizer.c.

Referenced by config_input().

#define OFFSET

(

x

)

offsetof(SOFAlizerContext, x)

Definition at line 1187 of file af_sofalizer.c.

#define FLAGS   AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

Definition at line 1188 of file af_sofalizer.c.

Function Documentation

static int close_sofa ( struct NCSofa *  sofa )

static

Definition at line 109 of file af_sofalizer.c.

Referenced by load_sofa().

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

static

Definition at line 122 of file af_sofalizer.c.

Referenced by init().

static int parse_channel_name ( char **  arg, int *  rchannel, char *  buf  )

static

Definition at line 376 of file af_sofalizer.c.

Referenced by parse_speaker_pos().

static void parse_speaker_pos ( AVFilterContext *  ctx, int64_t  in_channel_layout  )

static

Definition at line 401 of file af_sofalizer.c.

Referenced by get_speaker_pos().

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

static

Definition at line 434 of file af_sofalizer.c.

Referenced by config_input().

static int max_delay ( struct NCSofa *  sofa )

static

Definition at line 509 of file af_sofalizer.c.

Referenced by config_input(), and output_packet().

static int find_m ( SOFAlizerContext *  s, int  azim, int  elev, float  radius  )

static

Definition at line 521 of file af_sofalizer.c.

Referenced by compensate_volume(), and load_data().

static int compensate_volume ( AVFilterContext *  ctx )

static

Definition at line 549 of file af_sofalizer.c.

Referenced by config_input().

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

static

Definition at line 597 of file af_sofalizer.c.

Referenced by filter_frame().

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

static

Definition at line 683 of file af_sofalizer.c.

Referenced by filter_frame().

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

static

Definition at line 801 of file af_sofalizer.c.

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 839 of file af_sofalizer.c.

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

static

Definition at line 877 of file af_sofalizer.c.

Referenced by config_input().

static av_cold int init ( AVFilterContext *  ctx )

static

Definition at line 1018 of file af_sofalizer.c.

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 1053 of file af_sofalizer.c.

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 1155 of file af_sofalizer.c.

AVFILTER_DEFINE_CLASS

(

sofalizer

)

Variable Documentation

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,   3, .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 },
    { NULL }
}

Definition at line 1190 of file af_sofalizer.c.

const AVFilterPad inputs[]

static

Initial value:

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

Definition at line 1205 of file af_sofalizer.c.

const AVFilterPad outputs[]

static

Initial value:

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

Definition at line 1215 of file af_sofalizer.c.

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,
    .uninit        = uninit,
    .query_formats = query_formats,
    .inputs        = inputs,
    .outputs       = outputs,
    .flags         = AVFILTER_FLAG_SLICE_THREADS,
}

Definition at line 1223 of file af_sofalizer.c.