asrc_afirsrc.c File Reference

#include "libavutil/eval.h"
#include "libavutil/opt.h"
#include "libavutil/tx.h"
#include "audio.h"
#include "avfilter.h"
#include "internal.h"
#include "window_func.h"

Go to the source code of this file.

Data Structures
struct	AudioFIRSourceContext

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

Functions
	AVFILTER_DEFINE_CLASS (afirsrc)
static av_cold int	init (AVFilterContext *ctx)
static av_cold void	uninit (AVFilterContext *ctx)
static av_cold int	query_formats (AVFilterContext *ctx)
static int	parse_string (char *str, float **items, int *nb_items, int *items_size)
static void	lininterp (AVComplexFloat *complexf, const float *freq, const float *magnitude, const float *phase, int m, int minterp)
static av_cold int	config_output (AVFilterLink *outlink)
static int	request_frame (AVFilterLink *outlink)

Variables
static const AVOption	afirsrc_options []
static const AVFilterPad	afirsrc_outputs []
AVFilter	ff_asrc_afirsrc

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

offsetof(AudioFIRSourceContext, x)

Definition at line 59 of file asrc_afirsrc.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

Definition at line 60 of file asrc_afirsrc.c.

Function Documentation

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

afirsrc

)

init()

static av_cold int init ( AVFilterContext *  ctx )

static

Definition at line 102 of file asrc_afirsrc.c.

uninit()

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 114 of file asrc_afirsrc.c.

query_formats()

static av_cold int query_formats ( AVFilterContext *  ctx )

static

Definition at line 127 of file asrc_afirsrc.c.

parse_string()

static int parse_string ( char *  str, float **  items, int *  nb_items, int *  items_size  )

static

Definition at line 161 of file asrc_afirsrc.c.

Referenced by config_output().

lininterp()

static void lininterp ( AVComplexFloat *  complexf, const float *  freq, const float *  magnitude, const float *  phase, int  m, int  minterp  )

static

Definition at line 188 of file asrc_afirsrc.c.

Referenced by config_output().

config_output()

static av_cold int config_output ( AVFilterLink *  outlink )

static

Definition at line 210 of file asrc_afirsrc.c.

request_frame()

static int request_frame ( AVFilterLink *  outlink )

static

Definition at line 289 of file asrc_afirsrc.c.

Variable Documentation

afirsrc_options

const AVOption afirsrc_options[]

static

Definition at line 62 of file asrc_afirsrc.c.

afirsrc_outputs

const AVFilterPad afirsrc_outputs[]

static

Initial value:

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

Definition at line 310 of file asrc_afirsrc.c.

ff_asrc_afirsrc

AVFilter ff_asrc_afirsrc

Initial value:

= {
    .name          = "afirsrc",
    .description   = NULL_IF_CONFIG_SMALL("Generate a FIR coefficients audio stream."),
    .query_formats = query_formats,
    .init          = init,
    .uninit        = uninit,
    .priv_size     = sizeof(AudioFIRSourceContext),
    .inputs        = NULL,
    .outputs       = afirsrc_outputs,
    .priv_class    = &afirsrc_class,
}

Definition at line 320 of file asrc_afirsrc.c.