af_asetrate.c File Reference

#include "libavutil/opt.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"

Go to the source code of this file.

Data Structures
struct	ASetRateContext

Macros
#define	CONTEXT   ASetRateContext
#define	FLAGS   AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
#define	OPT_GENERIC(name, field, def, min, max, descr, type, deffield, ...)
#define	OPT_INT(name, field, def, min, max, descr, ...)   OPT_GENERIC(name, field, def, min, max, descr, INT, i64, __VA_ARGS__)

Functions
	AVFILTER_DEFINE_CLASS (asetrate)
static av_cold int	query_formats (AVFilterContext *ctx)
static av_cold int	config_props (AVFilterLink *outlink)
static int	filter_frame (AVFilterLink *inlink, AVFrame *frame)

Variables
static const AVOption	asetrate_options []
static const AVFilterPad	asetrate_inputs []
static const AVFilterPad	asetrate_outputs []
const AVFilter	ff_af_asetrate

Macro Definition Documentation

CONTEXT

#define CONTEXT   ASetRateContext

Definition at line 32 of file af_asetrate.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

Definition at line 33 of file af_asetrate.c.

OPT_GENERIC

#define OPT_GENERIC	(		name,
			field,
			def,
			min,
			max,
			descr,
			type,
			deffield,
			...
	)

Value:

    { name, descr, offsetof(CONTEXT, field), AV_OPT_TYPE_ ## type,          \
      { .deffield = def }, min, max, FLAGS, __VA_ARGS__ }

Definition at line 35 of file af_asetrate.c.

OPT_INT

#define OPT_INT	(		name,
			field,
			def,
			min,
			max,
			descr,
			...
	)		OPT_GENERIC(name, field, def, min, max, descr, INT, i64, __VA_ARGS__)

Definition at line 39 of file af_asetrate.c.

Function Documentation

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

asetrate

)

query_formats()

static av_cold int query_formats ( AVFilterContext *  ctx )

static

Definition at line 50 of file af_asetrate.c.

config_props()

static av_cold int config_props ( AVFilterLink *  outlink )

static

Definition at line 69 of file af_asetrate.c.

filter_frame()

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

static

Definition at line 89 of file af_asetrate.c.

Variable Documentation

asetrate_options

const AVOption asetrate_options[]

static

Initial value:

= {
    OPT_INT("sample_rate", sample_rate, 44100, 1, INT_MAX, "set the sample rate",),
    OPT_INT("r",           sample_rate, 44100, 1, INT_MAX, "set the sample rate",),
    {NULL},
}

Definition at line 42 of file af_asetrate.c.

asetrate_inputs

const AVFilterPad asetrate_inputs[]

static

Initial value:

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

Definition at line 102 of file af_asetrate.c.

asetrate_outputs

const AVFilterPad asetrate_outputs[]

static

Initial value:

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

Definition at line 110 of file af_asetrate.c.

ff_af_asetrate

const AVFilter ff_af_asetrate

Initial value:

= {
    .name          = "asetrate",
    .description   = NULL_IF_CONFIG_SMALL("Change the sample rate without "
                                          "altering the data."),
    .priv_size     = sizeof(ASetRateContext),
    FILTER_INPUTS(asetrate_inputs),
    FILTER_OUTPUTS(asetrate_outputs),
    FILTER_QUERY_FUNC(query_formats),
    .priv_class    = &asetrate_class,
    .flags         = AVFILTER_FLAG_METADATA_ONLY,
}

Definition at line 118 of file af_asetrate.c.