libavfilter/af_asyncts.c File Reference

#include "libavresample/avresample.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

Defines

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

Functions

 AVFILTER_DEFINE_CLASS (asyncts)
static int init (AVFilterContext *ctx, const char *args)
static void uninit (AVFilterContext *ctx)
static int config_props (AVFilterLink *link)
static int request_frame (AVFilterLink *link)
static int write_to_fifo (ASyncContext *s, AVFilterBufferRef *buf)
static int64_t get_delay (ASyncContext *s)
static int filter_samples (AVFilterLink *inlink, AVFilterBufferRef *buf)

Variables

static const AVOption asyncts_options []
AVFilter avfilter_af_asyncts


Define Documentation

#define A   AV_OPT_FLAG_AUDIO_PARAM

Definition at line 47 of file af_asyncts.c.

#define F   AV_OPT_FLAG_FILTERING_PARAM

Definition at line 48 of file af_asyncts.c.

#define OFFSET (  )     offsetof(ASyncContext, x)

Definition at line 46 of file af_asyncts.c.


Function Documentation

AVFILTER_DEFINE_CLASS ( asyncts   ) 

static int config_props ( AVFilterLink link  )  [static]

Definition at line 85 of file af_asyncts.c.

Referenced by start_frame().

static int filter_samples ( AVFilterLink inlink,
AVFilterBufferRef buf 
) [static]

Definition at line 158 of file af_asyncts.c.

static int64_t get_delay ( ASyncContext s  )  [static]

Definition at line 153 of file af_asyncts.c.

Referenced by filter_samples().

static int init ( AVFilterContext ctx,
const char *  args 
) [static]

Definition at line 60 of file af_asyncts.c.

static int request_frame ( AVFilterLink link  )  [static]

Definition at line 113 of file af_asyncts.c.

static void uninit ( AVFilterContext ctx  )  [static]

Definition at line 75 of file af_asyncts.c.

static int write_to_fifo ( ASyncContext s,
AVFilterBufferRef buf 
) [static]

Definition at line 144 of file af_asyncts.c.

Referenced by end_frame(), and filter_samples().


Variable Documentation

const AVOption asyncts_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|F },
    { "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|F },
    { "max_comp",   "Maximum compensation in samples per second.",              OFFSET(max_comp),      AV_OPT_TYPE_INT,   { .i64 = 500 }, 0, INT_MAX, A|F },
    { "first_pts",  "Assume the first pts should be this value.",               OFFSET(pts),           AV_OPT_TYPE_INT64, { .i64 = AV_NOPTS_VALUE }, INT64_MIN, INT64_MAX, A|F },
    { NULL },
}

Definition at line 49 of file af_asyncts.c.

Initial value:

 {
    .name        = "asyncts",
    .description = NULL_IF_CONFIG_SMALL("Sync audio data to timestamps"),

    .init        = init,
    .uninit      = uninit,

    .priv_size   = sizeof(ASyncContext),

    .inputs      = (const AVFilterPad[]) {{ .name           = "default",
                                            .type           = AVMEDIA_TYPE_AUDIO,
                                            .filter_samples = filter_samples },
                                          { NULL }},
    .outputs     = (const AVFilterPad[]) {{ .name           = "default",
                                            .type           = AVMEDIA_TYPE_AUDIO,
                                            .config_props   = config_props,
                                            .request_frame  = request_frame },
                                          { NULL }},
    .priv_class = &asyncts_class,
}

Definition at line 236 of file af_asyncts.c.


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