tty.c File Reference

Tele-typewriter demuxer. More...

#include "libavutil/intreadwrite.h"
#include "libavutil/avstring.h"
#include "libavutil/log.h"
#include "libavutil/dict.h"
#include "libavutil/opt.h"
#include "libavutil/parseutils.h"
#include "avformat.h"
#include "demux.h"
#include "internal.h"
#include "sauce.h"

Go to the source code of this file.

Data Structures
struct	TtyDemuxContext

Macros
#define	GET_EFI_META(name, size)
#define	OFFSET(x)
#define	DEC   AV_OPT_FLAG_DECODING_PARAM

Functions
static int	isansicode (int x)
static int	read_probe (const AVProbeData *p)
static int	efi_read (AVFormatContext *avctx, uint64_t start_pos)
	Parse EFI header.
static int	read_header (AVFormatContext *avctx)
static int	read_packet (AVFormatContext *avctx, AVPacket *pkt)

Variables
static const char	tty_extensions [31] = "ans,art,asc,diz,ice,nfo,txt,vt"
static const AVOption	options []
static const AVClass	tty_demuxer_class
const FFInputFormat	ff_tty_demuxer

Detailed Description

Tele-typewriter demuxer.

Definition in file tty.c.

Macro Definition Documentation

GET_EFI_META

#define GET_EFI_META	(		name,
			size )

Value:

    len = avio_r8(pb); \
    if (len < 1 || len > size) \
        return -1; \
    if (avio_read(pb, buf, size) == size) { \
        buf[len] = 0; \
        av_dict_set(&avctx->metadata, name, buf, 0); \
    }

Referenced by efi_read().

OFFSET

#define OFFSET

(

x

)

Value:

offsetof(TtyDemuxContext, x)

Definition at line 169 of file tty.c.

DEC

#define DEC   AV_OPT_FLAG_DECODING_PARAM

Definition at line 170 of file tty.c.

Function Documentation

isansicode()

static int isansicode ( int x )

static

Definition at line 38 of file tty.c.

Referenced by read_probe().

read_probe()

static int read_probe ( const AVProbeData * p )

static

Definition at line 53 of file tty.c.

efi_read()

static int efi_read ( AVFormatContext * avctx, uint64_t start_pos )

static

Parse EFI header.

Definition at line 76 of file tty.c.

Referenced by read_header().

read_header()

static int read_header ( AVFormatContext * avctx )

static

Definition at line 103 of file tty.c.

read_packet()

static int read_packet ( AVFormatContext * avctx, AVPacket * pkt )

static

Definition at line 142 of file tty.c.

Variable Documentation

tty_extensions

const char tty_extensions[31] = "ans,art,asc,diz,ice,nfo,txt,vt"

static

Definition at line 43 of file tty.c.

Referenced by read_probe().

options

const AVOption options[]

static

Initial value:

= {
    { "chars_per_frame", "",  0x42 , AV_OPT_TYPE_INT, {.i64 = 6000}, 1, INT_MAX, AV_OPT_FLAG_DECODING_PARAM},
    { "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(width), AV_OPT_TYPE_IMAGE_SIZE, {.str = NULL}, 0, 0, DEC },
    { "framerate", "", OFFSET(framerate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, INT_MAX, DEC },
    { NULL },
}

Definition at line 171 of file tty.c.

tty_demuxer_class

const AVClass tty_demuxer_class

static

Initial value:

= {
    .class_name     = "TTY demuxer",
    .item_name      = av_default_item_name,
    .option         = options,
    .version        = LIBAVUTIL_VERSION_INT,
}

Definition at line 178 of file tty.c.

ff_tty_demuxer

const FFInputFormat ff_tty_demuxer

Initial value:

= {
    .p.name         = "tty",
    .p.long_name    = NULL_IF_CONFIG_SMALL("Tele-typewriter"),
    .p.extensions   = tty_extensions,
    .p.priv_class   = &tty_demuxer_class,
    .p.flags        = AVFMT_GENERIC_INDEX,
    .priv_data_size = sizeof(TtyDemuxContext),
    .read_probe     = read_probe,
    .read_header    = read_header,
    .read_packet    = read_packet,
}

Definition at line 185 of file tty.c.