af_asetnsamples.c File Reference

#include "libavutil/channel_layout.h"
#include "libavutil/opt.h"
#include "avfilter.h"
#include "audio.h"
#include "filters.h"
#include "internal.h"
#include "formats.h"

Go to the source code of this file.

Data Structures
struct	ASNSContext

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

Functions
	AVFILTER_DEFINE_CLASS (asetnsamples)
static int	activate (AVFilterContext *ctx)

Variables
static const AVOption	asetnsamples_options []
static const AVFilterPad	asetnsamples_inputs []
static const AVFilterPad	asetnsamples_outputs []
const AVFilter	ff_af_asetnsamples

Detailed Description

Filter that changes number of samples on single output operation

Definition in file af_asetnsamples.c.

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

offsetof(ASNSContext, x)

Definition at line 41 of file af_asetnsamples.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

Definition at line 42 of file af_asetnsamples.c.

Function Documentation

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

asetnsamples

)

activate()

static int activate ( AVFilterContext *  ctx )

static

Definition at line 54 of file af_asetnsamples.c.

Variable Documentation

asetnsamples_options

const AVOption asetnsamples_options[]

static

Initial value:

= {
    { "nb_out_samples", "set the number of per-frame output samples", OFFSET(nb_out_samples), AV_OPT_TYPE_INT, {.i64=1024}, 1, INT_MAX, FLAGS },
    { "n",              "set the number of per-frame output samples", OFFSET(nb_out_samples), AV_OPT_TYPE_INT, {.i64=1024}, 1, INT_MAX, FLAGS },
    { "pad", "pad last frame with zeros", OFFSET(pad), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, FLAGS },
    { "p",   "pad last frame with zeros", OFFSET(pad), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, FLAGS },
    { NULL }
}

Definition at line 44 of file af_asetnsamples.c.

asetnsamples_inputs

const AVFilterPad asetnsamples_inputs[]

static

Initial value:

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

Definition at line 104 of file af_asetnsamples.c.

asetnsamples_outputs

const AVFilterPad asetnsamples_outputs[]

static

Initial value:

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

Definition at line 111 of file af_asetnsamples.c.

ff_af_asetnsamples

const AVFilter ff_af_asetnsamples

Initial value:

= {
    .name        = "asetnsamples",
    .description = NULL_IF_CONFIG_SMALL("Set the number of samples for each output audio frames."),
    .priv_size   = sizeof(ASNSContext),
    .priv_class  = &asetnsamples_class,
    FILTER_INPUTS(asetnsamples_inputs),
    FILTER_OUTPUTS(asetnsamples_outputs),
    .activate    = activate,
}

Definition at line 118 of file af_asetnsamples.c.