libavdevice/lavfi.c File Reference

libavfilter virtual input device More...

#include "float.h"
#include "libavutil/log.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "libavutil/parseutils.h"
#include "libavutil/pixdesc.h"
#include "libavfilter/avfilter.h"
#include "libavfilter/avfiltergraph.h"
#include "libavfilter/buffersink.h"
#include "libavformat/internal.h"
#include "avdevice.h"

Go to the source code of this file.

Data Structures

struct  LavfiContext


#define FAIL(ERR)   { ret = ERR; goto end; }
#define OFFSET(x)   offsetof(LavfiContext, x)


static int * create_all_formats (int n)
static av_cold int lavfi_read_close (AVFormatContext *avctx)
static av_cold int lavfi_read_header (AVFormatContext *avctx, AVFormatParameters *ap)
static int lavfi_read_packet (AVFormatContext *avctx, AVPacket *pkt)


static const AVOption options []
static const AVClass lavfi_class
AVInputFormat ff_lavfi_demuxer

Detailed Description

libavfilter virtual input device

Definition in file lavfi.c.

Define Documentation


Definition at line 326 of file lavfi.c.

#define FAIL ( ERR   )     { ret = ERR; goto end; }

Referenced by lavfi_read_header().

#define OFFSET (  )     offsetof(LavfiContext, x)

Definition at line 324 of file lavfi.c.

Function Documentation

static int* create_all_formats ( int  n  )  [static]

Definition at line 50 of file lavfi.c.

Referenced by lavfi_read_header().

static av_cold int lavfi_read_close ( AVFormatContext avctx  )  [static]

Definition at line 68 of file lavfi.c.

Referenced by lavfi_read_header().

static av_cold int lavfi_read_header ( AVFormatContext avctx,
AVFormatParameters ap 
) [static]

Definition at line 79 of file lavfi.c.

static int lavfi_read_packet ( AVFormatContext avctx,
AVPacket pkt 
) [static]

Definition at line 265 of file lavfi.c.

Variable Documentation

Initial value:

    .name           = "lavfi",
    .long_name      = NULL_IF_CONFIG_SMALL("Libavfilter virtual input device"),
    .priv_data_size = sizeof(LavfiContext),
    .read_header    = lavfi_read_header,
    .read_packet    = lavfi_read_packet,
    .read_close     = lavfi_read_close,
    .flags          = AVFMT_NOFILE,
    .priv_class     = &lavfi_class,

Definition at line 340 of file lavfi.c.

const AVClass lavfi_class [static]

Initial value:

    .class_name = "lavfi indev",
    .item_name  = av_default_item_name,
    .option     = options,
    .version    = LIBAVUTIL_VERSION_INT,

Definition at line 333 of file lavfi.c.

const AVOption options[] [static]

Initial value:

    { "graph", "Libavfilter graph", OFFSET(graph_str),  AV_OPT_TYPE_STRING, {.str = NULL }, 0,  0, DEC },
    { NULL },

Definition at line 328 of file lavfi.c.

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