fifo.c File Reference

#include "libavutil/common.h"
#include "libavutil/mathematics.h"
#include "audio.h"
#include "avfilter.h"
#include "internal.h"

Go to the source code of this file.

Data Structures
struct	Buf
struct	FifoContext

Functions
static av_cold int	init (AVFilterContext *ctx)
static av_cold void	uninit (AVFilterContext *ctx)
static int	add_to_queue (AVFilterLink *inlink, AVFrame *frame)
static void	queue_pop (FifoContext *s)
static int	request_frame (AVFilterLink *outlink)

Variables
static const AVFilterPad	avfilter_vf_fifo_inputs []
static const AVFilterPad	avfilter_vf_fifo_outputs []
const AVFilter	ff_vf_fifo
static const AVFilterPad	avfilter_af_afifo_inputs []
static const AVFilterPad	avfilter_af_afifo_outputs []
const AVFilter	ff_af_afifo

Detailed Description

FIFO buffering filter

Definition in file fifo.c.

Function Documentation

init()

static av_cold int init ( AVFilterContext *  ctx )

static

Definition at line 50 of file fifo.c.

uninit()

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 58 of file fifo.c.

add_to_queue()

static int add_to_queue ( AVFilterLink *  inlink, AVFrame *  frame  )

static

Definition at line 72 of file fifo.c.

queue_pop()

static void queue_pop ( FifoContext *  s )

static

Definition at line 88 of file fifo.c.

Referenced by request_frame().

request_frame()

static int request_frame ( AVFilterLink *  outlink )

static

Definition at line 97 of file fifo.c.

Variable Documentation

avfilter_vf_fifo_inputs

const AVFilterPad avfilter_vf_fifo_inputs[]

static

Initial value:

= {
    {
        .name         = "default",
        .type         = AVMEDIA_TYPE_VIDEO,
        .filter_frame = add_to_queue,
    },
}

Definition at line 113 of file fifo.c.

avfilter_vf_fifo_outputs

const AVFilterPad avfilter_vf_fifo_outputs[]

static

Initial value:

= {
    {
        .name          = "default",
        .type          = AVMEDIA_TYPE_VIDEO,
        .request_frame = request_frame,
    },
}

Definition at line 121 of file fifo.c.

ff_vf_fifo

const AVFilter ff_vf_fifo

Initial value:

= {
    .name        = "fifo",
    .description = NULL_IF_CONFIG_SMALL("Buffer input images and send them when they are requested."),
    .init        = init,
    .uninit      = uninit,
    .priv_size   = sizeof(FifoContext),
    .flags       = AVFILTER_FLAG_METADATA_ONLY,
    FILTER_INPUTS(avfilter_vf_fifo_inputs),
    FILTER_OUTPUTS(avfilter_vf_fifo_outputs),
}

Definition at line 129 of file fifo.c.

avfilter_af_afifo_inputs

const AVFilterPad avfilter_af_afifo_inputs[]

static

Initial value:

= {
    {
        .name         = "default",
        .type         = AVMEDIA_TYPE_AUDIO,
        .filter_frame = add_to_queue,
    },
}

Definition at line 140 of file fifo.c.

avfilter_af_afifo_outputs

const AVFilterPad avfilter_af_afifo_outputs[]

static

Initial value:

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

Definition at line 148 of file fifo.c.

ff_af_afifo

const AVFilter ff_af_afifo

Initial value:

= {
    .name        = "afifo",
    .description = NULL_IF_CONFIG_SMALL("Buffer input frames and send them when they are requested."),
    .init        = init,
    .uninit      = uninit,
    .priv_size   = sizeof(FifoContext),
    .flags       = AVFILTER_FLAG_METADATA_ONLY,
    FILTER_INPUTS(avfilter_af_afifo_inputs),
    FILTER_OUTPUTS(avfilter_af_afifo_outputs),
}

Definition at line 156 of file fifo.c.