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
 

Macros

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

Typedefs

typedef struct ASyncContext ASyncContext
 

Functions

static int init (AVFilterContext *ctx, const char *args)
 
static 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, AVFilterBufferRef *buf)
 
static int filter_frame (AVFilterLink *inlink, AVFilterBufferRef *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 avfilter_af_asyncts
 

Macro Definition Documentation

#define A   AV_OPT_FLAG_AUDIO_PARAM

Definition at line 49 of file af_asyncts.c.

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

Definition at line 48 of file af_asyncts.c.

Typedef Documentation

typedef struct ASyncContext ASyncContext

Function Documentation

static int config_props ( AVFilterLink link)
static

Definition at line 96 of file af_asyncts.c.

static int filter_frame ( AVFilterLink inlink,
AVFilterBufferRef buf 
)
static

Definition at line 188 of file af_asyncts.c.

static int64_t get_delay ( ASyncContext s)
static

Definition at line 125 of file af_asyncts.c.

Referenced by filter_frame(), and request_frame().

static void handle_trimming ( AVFilterContext ctx)
static

Definition at line 130 of file af_asyncts.c.

Referenced by filter_frame(), and request_frame().

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

Definition at line 66 of file af_asyncts.c.

static int request_frame ( AVFilterLink link)
static

Definition at line 144 of file af_asyncts.c.

static void uninit ( AVFilterContext ctx)
static

Definition at line 86 of file af_asyncts.c.

static int write_to_fifo ( ASyncContext s,
AVFilterBufferRef buf 
)
static

Definition at line 180 of file af_asyncts.c.

Referenced by filter_frame().

Variable Documentation

const AVClass async_class
static
Initial value:
= {
.class_name = "asyncts filter",
.item_name = av_default_item_name,
.option = options,
}
LIBAVUTIL_VERSION_INT
Definition: eval.c:52
av_default_item_name
Definition: dnxhdenc.c:43
static const AVOption options[]
Definition: af_asyncts.c:50

Definition at line 59 of file af_asyncts.c.

Referenced by init().

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),
}
static const AVFilterPad avfilter_af_asyncts_inputs[]
Definition: af_asyncts.c:289
static const AVFilterPad outputs[]
Definition: af_ashowinfo.c:122
struct ASyncContext ASyncContext
static int init(AVFilterContext *ctx, const char *args)
Definition: af_asyncts.c:66
static void uninit(AVFilterContext *ctx)
Definition: af_asyncts.c:86
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:88
static const AVFilterPad inputs[]
Definition: af_ashowinfo.c:110
static const AVFilterPad avfilter_af_asyncts_outputs[]
Definition: af_asyncts.c:298

Definition at line 308 of file af_asyncts.c.

const AVFilterPad avfilter_af_asyncts_inputs[]
static
Initial value:
= {
{
.name = "default",
.filter_frame = filter_frame,
},
{ NULL }
}
static int filter_frame(AVFilterLink *inlink, AVFilterBufferRef *buf)
Definition: af_asyncts.c:188
NULL
Definition: eval.c:52

Definition at line 289 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 }
}
static int request_frame(AVFilterLink *link)
Definition: af_asyncts.c:144
static int config_props(AVFilterLink *link)
Definition: af_asyncts.c:96
NULL
Definition: eval.c:52

Definition at line 298 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, { .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 },
}
#define OFFSET(x)
Definition: af_asyncts.c:48
static int resample(ResampleContext *c, void *dst, const void *src, int *consumed, int src_size, int dst_size, int update_ctx)
Definition: resample.c:333
NULL
Definition: eval.c:52
#define A
Definition: af_asyncts.c:49

Definition at line 50 of file af_asyncts.c.