libavfilter/af_asyncts.c File Reference

#include "libavresample/avresample.h"
#include "libavutil/audio_fifo.h"
#include "libavutil/mathematics.h"
#include "libavutil/opt.h"
#include "libavutil/samplefmt.h"
#include "audio.h"
#include "avfilter.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
Functions
static int	init (AVFilterContext *ctx, const char *args, void *opaque)
static void	uninit (AVFilterContext *ctx)
static int	config_props (AVFilterLink *link)
static int	request_frame (AVFilterLink *link)
static void	write_to_fifo (ASyncContext *s, AVFilterBufferRef *buf)
static int64_t	get_delay (ASyncContext *s)
static void	filter_samples (AVFilterLink *inlink, AVFilterBufferRef *buf)
Variables
static const AVOption	options []
static const AVClass	async_class
AVFilter	avfilter_af_asyncts

---

Define Documentation

#define A   AV_OPT_FLAG_AUDIO_PARAM

Definition at line 42 of file af_asyncts.c.

#define OFFSET

(

x

)

offsetof(ASyncContext, x)

Definition at line 41 of file af_asyncts.c.

---

Function Documentation

static int config_props

(

AVFilterLink *

link

)

[static]

Definition at line 87 of file af_asyncts.c.

Referenced by start_frame().

static void filter_samples	(	AVFilterLink *	inlink,
		AVFilterBufferRef *	buf
	)			[static]

Definition at line 151 of file af_asyncts.c.

static int64_t get_delay

(

ASyncContext *

s

)

[static]

Definition at line 146 of file af_asyncts.c.

Referenced by filter_samples().

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

Definition at line 58 of file af_asyncts.c.

static int request_frame

(

AVFilterLink *

link

)

[static]

Definition at line 115 of file af_asyncts.c.

static void uninit

(

AVFilterContext *

ctx

)

[static]

Definition at line 77 of file af_asyncts.c.

static void write_to_fifo	(	ASyncContext *	s,
		AVFilterBufferRef *	buf
	)			[static]

Definition at line 138 of file af_asyncts.c.

Referenced by end_frame(), and filter_samples().

---

Variable Documentation

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 51 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 }},
}

Definition at line 222 of file af_asyncts.c.

const AVOption options[] [static]

Initial value:

 {
    { "compensate", "Stretch/squeeze the data to make it match the timestamps", OFFSET(resample),      AV_OPT_TYPE_INT,   { 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, { 0.1 }, 0, INT_MAX, A },
    { "max_comp",   "Maximum compensation in samples per second.",              OFFSET(max_comp),      AV_OPT_TYPE_INT,   { 500 }, 0, INT_MAX, A },
    { NULL },
}

Definition at line 43 of file af_asyncts.c.