Libav
Data Structures | Macros | Functions | Variables
af_asyncts.c File Reference
#include <stdint.h>
#include "libavresample/avresample.h"
#include "libavutil/attributes.h"
#include "libavutil/audio_fifo.h"
#include "libavutil/common.h"
#include "libavutil/mathematics.h"
#include "libavutil/opt.h"
#include "libavutil/samplefmt.h"
#include "audio.h"
#include "avfilter.h"
#include "internal.h"

Go to the source code of this file.

Data Structures

struct  ASyncContext

Macros

#define OFFSET(x)   offsetof(ASyncContext, x)
#define A   AV_OPT_FLAG_AUDIO_PARAM

Functions

static av_cold int init (AVFilterContext *ctx)
static av_cold void uninit (AVFilterContext *ctx)
static int config_props (AVFilterLink *link)
static int64_t get_delay (ASyncContext *s)
static void handle_trimming (AVFilterContext *ctx)
static int request_frame (AVFilterLink *link)
static int write_to_fifo (ASyncContext *s, AVFrame *buf)
static int filter_frame (AVFilterLink *inlink, AVFrame *buf)

Variables

static const AVOption options []
static const AVClass async_class
static const AVFilterPad avfilter_af_asyncts_inputs []
static const AVFilterPad avfilter_af_asyncts_outputs []
AVFilter ff_af_asyncts

Macro Definition Documentation

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

Definition at line 52 of file af_asyncts.c.

#define A   AV_OPT_FLAG_AUDIO_PARAM

Definition at line 53 of file af_asyncts.c.

Function Documentation

static av_cold int init ( AVFilterContext ctx)
static

Definition at line 70 of file af_asyncts.c.

static av_cold void uninit ( AVFilterContext ctx)
static

Definition at line 80 of file af_asyncts.c.

static int config_props ( AVFilterLink link)
static

Definition at line 90 of file af_asyncts.c.

static int64_t get_delay ( ASyncContext s)
static

Definition at line 119 of file af_asyncts.c.

Referenced by filter_frame(), and request_frame().

static void handle_trimming ( AVFilterContext ctx)
static

Definition at line 124 of file af_asyncts.c.

Referenced by filter_frame(), and request_frame().

static int request_frame ( AVFilterLink link)
static

Definition at line 138 of file af_asyncts.c.

static int write_to_fifo ( ASyncContext s,
AVFrame buf 
)
static

Definition at line 173 of file af_asyncts.c.

Referenced by filter_frame().

static int filter_frame ( AVFilterLink inlink,
AVFrame buf 
)
static

Definition at line 181 of file af_asyncts.c.

Variable Documentation

const AVOption options[]
static
Initial value:
{
{ "compensate", "Stretch/squeeze the data to make it match the timestamps", OFFSET(resample), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, A },
{ "min_delta", "Minimum difference between timestamps and audio data "
"(in seconds) to trigger padding/trimmin the data.", OFFSET(min_delta_sec), AV_OPT_TYPE_FLOAT, { .dbl = 0.1 }, 0, INT_MAX, A },
{ "max_comp", "Maximum compensation in samples per second.", OFFSET(max_comp), AV_OPT_TYPE_INT, { .i64 = 500 }, 0, INT_MAX, A },
{ "first_pts", "Assume the first pts should be this value.", OFFSET(first_pts), AV_OPT_TYPE_INT64, { .i64 = AV_NOPTS_VALUE }, INT64_MIN, INT64_MAX, A },
{ NULL },
}

Definition at line 54 of file af_asyncts.c.

const AVClass async_class
static
Initial value:
{
.class_name = "asyncts filter",
.item_name = av_default_item_name,
.option = options,
}

Definition at line 63 of file af_asyncts.c.

const AVFilterPad avfilter_af_asyncts_inputs[]
static
Initial value:
{
{
.name = "default",
.filter_frame = filter_frame,
},
{ NULL }
}

Definition at line 299 of file af_asyncts.c.

const AVFilterPad avfilter_af_asyncts_outputs[]
static
Initial value:
{
{
.name = "default",
.config_props = config_props,
.request_frame = request_frame
},
{ NULL }
}

Definition at line 308 of file af_asyncts.c.

AVFilter ff_af_asyncts
Initial value:
{
.name = "asyncts",
.description = NULL_IF_CONFIG_SMALL("Sync audio data to timestamps"),
.init = init,
.uninit = uninit,
.priv_size = sizeof(ASyncContext),
.priv_class = &async_class,
}

Definition at line 318 of file af_asyncts.c.