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

(

x

)

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.

AVFilter avfilter_af_asyncts

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.