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af_apad.c File Reference

audio pad filter. More...

#include "libavutil/avstring.h"
#include "libavutil/channel_layout.h"
#include "libavutil/opt.h"
#include "libavutil/samplefmt.h"
#include "libavutil/avassert.h"
#include "avfilter.h"
#include "audio.h"
#include "internal.h"

Go to the source code of this file.

Data Structures

struct  APadContext


#define OFFSET(x)   offsetof(APadContext, x)


static av_cold int init (AVFilterContext *ctx)
static int filter_frame (AVFilterLink *inlink, AVFrame *frame)
static int request_frame (AVFilterLink *outlink)


static const AVOption apad_options []
static const AVFilterPad apad_inputs []
static const AVFilterPad apad_outputs []
AVFilter ff_af_apad

Detailed Description

audio pad filter.

Based on af_aresample.c

Definition in file af_apad.c.

Macro Definition Documentation

#define OFFSET (   x)    offsetof(APadContext, x)

Definition at line 46 of file af_apad.c.

Definition at line 47 of file af_apad.c.

Function Documentation

static av_cold int init ( AVFilterContext ctx)

Definition at line 58 of file af_apad.c.

static int filter_frame ( AVFilterLink inlink,
AVFrame frame 

Definition at line 73 of file af_apad.c.

static int request_frame ( AVFilterLink outlink)

Definition at line 88 of file af_apad.c.

Variable Documentation

const AVOption apad_options[]
Initial value:
= {
{ "packet_size", "set silence packet size", OFFSET(packet_size), AV_OPT_TYPE_INT, { .i64 = 4096 }, 0, INT_MAX, A },
{ "pad_len", "set number of samples of silence to add", OFFSET(pad_len), AV_OPT_TYPE_INT64, { .i64 = -1 }, -1, INT64_MAX, A },
{ "whole_len", "set minimum target number of samples in the audio stream", OFFSET(whole_len), AV_OPT_TYPE_INT64, { .i64 = -1 }, -1, INT64_MAX, A },
{ NULL }
#define NULL
Definition: coverity.c:32
#define OFFSET(x)
Definition: af_apad.c:46
#define A
Definition: af_apad.c:47

Definition at line 49 of file af_apad.c.

const AVFilterPad apad_inputs[]
Initial value:
= {
.name = "default",
.filter_frame = filter_frame,
{ NULL }
#define NULL
Definition: coverity.c:32
static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
Definition: af_apad.c:73

Definition at line 134 of file af_apad.c.

const AVFilterPad apad_outputs[]
Initial value:
= {
.name = "default",
.request_frame = request_frame,
{ NULL }
#define NULL
Definition: coverity.c:32
static int request_frame(AVFilterLink *outlink)
Definition: af_apad.c:88

Definition at line 143 of file af_apad.c.

AVFilter ff_af_apad
Initial value:
= {
.name = "apad",
.description = NULL_IF_CONFIG_SMALL("Pad audio with silence."),
.init = init,
.priv_size = sizeof(APadContext),
.priv_class = &apad_class,
static const AVFilterPad apad_inputs[]
Definition: af_apad.c:134
static const AVFilterPad apad_outputs[]
Definition: af_apad.c:143
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:176
static const AVFilterPad outputs[]
Definition: af_afftfilt.c:386
static const AVFilterPad inputs[]
Definition: af_afftfilt.c:376
static av_cold int init(AVFilterContext *ctx)
Definition: af_apad.c:58
Same as AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, except that the filter will have its filter_frame() c...
Definition: avfilter.h:131
static int flags
Definition: cpu.c:47

Definition at line 152 of file af_apad.c.