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,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 63 of file af_asyncts.c.

const AVFilterPad avfilter_af_asyncts_inputs[]

static

Initial value:

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

    .inputs      = avfilter_af_asyncts_inputs,
    .outputs     = avfilter_af_asyncts_outputs,
}

Definition at line 318 of file af_asyncts.c.