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 "libavutil/audioconvert.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
Defines
#define	FAIL(ERR)   { ret = ERR; goto end; }
#define	OFFSET(x)   offsetof(LavfiContext, x)
#define	DEC   AV_OPT_FLAG_DECODING_PARAM
Functions
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)
static int	lavfi_read_packet (AVFormatContext *avctx, AVPacket *pkt)
Variables
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

#define DEC   AV_OPT_FLAG_DECODING_PARAM

Definition at line 349 of file lavfi.c.

#define FAIL

(

ERR

)

{ ret = ERR; goto end; }

Referenced by has_codec_parameters(), lavfi_read_header(), and parse_times().

#define OFFSET

(

x

)

offsetof(LavfiContext, x)

Definition at line 347 of file lavfi.c.

---

Function Documentation

static int* create_all_formats

(

int

n

)

[static]

Definition at line 53 of file lavfi.c.

Referenced by lavfi_read_header().

static av_cold int lavfi_read_close

(

AVFormatContext *

avctx

)

[static]

Definition at line 71 of file lavfi.c.

Referenced by lavfi_read_header().

static av_cold int lavfi_read_header

(

AVFormatContext *

avctx

)

[static]

Definition at line 84 of file lavfi.c.

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

Definition at line 276 of file lavfi.c.

---

Variable Documentation

AVInputFormat ff_lavfi_demuxer

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 364 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 357 of file lavfi.c.

const AVOption options[] [static]

Initial value:

 {
    { "graph",     "set libavfilter graph", OFFSET(graph_str),  AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC },
    { "dumpgraph", "dump graph to stderr",  OFFSET(dump_graph), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC },
    { NULL },
}

Definition at line 351 of file lavfi.c.