webvttdec.c File Reference

WebVTT subtitle demuxer. More...

#include "avformat.h"
#include "internal.h"
#include "subtitles.h"
#include "libavutil/bprint.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/opt.h"

Go to the source code of this file.

Data Structures
struct	WebVTTContext

Macros
#define	SET_SIDE_DATA(name, type)
#define	OFFSET(x)   offsetof(WebVTTContext, x)
#define	KIND_FLAGS   AV_OPT_FLAG_SUBTITLE_PARAM

Functions
static int	webvtt_probe (AVProbeData *p)
static int64_t	read_ts (const char *s)
static int	webvtt_read_header (AVFormatContext *s)
static int	webvtt_read_packet (AVFormatContext *s, AVPacket *pkt)
static int	webvtt_read_seek (AVFormatContext *s, int stream_index, int64_t min_ts, int64_t ts, int64_t max_ts, int flags)
static int	webvtt_read_close (AVFormatContext *s)

Variables
static const AVOption	options []
static const AVClass	webvtt_demuxer_class
AVInputFormat	ff_webvtt_demuxer

Detailed Description

WebVTT subtitle demuxer.

See also

http://dev.w3.org/html5/webvtt/

Definition in file webvttdec.c.

Macro Definition Documentation

SET_SIDE_DATA

#define SET_SIDE_DATA	(		name,
			type
	)

Value:

do {                                  \
    if (name##_len) {                                                   \
        uint8_t *buf = av_packet_new_side_data(sub, type, name##_len);  \
        if (!buf) {                                                     \
            res = AVERROR(ENOMEM);                                      \
            goto end;                                                   \
        }                                                               \
        memcpy(buf, name, name##_len);                                  \
    }                                                                   \
} while (0)

Referenced by webvtt_read_header().

OFFSET

#define OFFSET

(

x

)

offsetof(WebVTTContext, x)

Definition at line 194 of file webvttdec.c.

KIND_FLAGS

#define KIND_FLAGS   AV_OPT_FLAG_SUBTITLE_PARAM

Definition at line 195 of file webvttdec.c.

Function Documentation

webvtt_probe()

static int webvtt_probe ( AVProbeData *  p )

static

Definition at line 40 of file webvttdec.c.

read_ts()

static int64_t read_ts ( const char *  s )

static

Definition at line 52 of file webvttdec.c.

Referenced by webvtt_read_header().

webvtt_read_header()

static int webvtt_read_header ( AVFormatContext *  s )

static

Definition at line 60 of file webvttdec.c.

webvtt_read_packet()

static int webvtt_read_packet ( AVFormatContext *  s, AVPacket *  pkt  )

static

Definition at line 173 of file webvttdec.c.

webvtt_read_seek()

static int webvtt_read_seek ( AVFormatContext *  s, int  stream_index, int64_t  min_ts, int64_t  ts, int64_t  max_ts, int  flags  )

static

Definition at line 179 of file webvttdec.c.

webvtt_read_close()

static int webvtt_read_close ( AVFormatContext *  s )

static

Definition at line 187 of file webvttdec.c.

Variable Documentation

options

const AVOption options[]

static

Initial value:

= {
    { "kind", "Set kind of WebVTT track", OFFSET(kind), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, KIND_FLAGS, "webvtt_kind" },
        { "subtitles",    "WebVTT subtitles kind",    0, AV_OPT_TYPE_CONST, { .i64 = 0 },                           INT_MIN, INT_MAX, 0, "webvtt_kind" },
        { "captions",     "WebVTT captions kind",     0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_CAPTIONS },     INT_MIN, INT_MAX, 0, "webvtt_kind" },
        { "descriptions", "WebVTT descriptions kind", 0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_DESCRIPTIONS }, INT_MIN, INT_MAX, 0, "webvtt_kind" },
        { "metadata",     "WebVTT metadata kind",     0, AV_OPT_TYPE_CONST, { .i64 = AV_DISPOSITION_METADATA },     INT_MIN, INT_MAX, 0, "webvtt_kind" },
    { NULL }
}

Definition at line 197 of file webvttdec.c.

webvtt_demuxer_class

const AVClass webvtt_demuxer_class

static

Initial value:

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

Definition at line 206 of file webvttdec.c.

ff_webvtt_demuxer

AVInputFormat ff_webvtt_demuxer

Initial value:

= {
    .name           = "webvtt",
    .long_name      = NULL_IF_CONFIG_SMALL("WebVTT subtitle"),
    .priv_data_size = sizeof(WebVTTContext),
    .read_probe     = webvtt_probe,
    .read_header    = webvtt_read_header,
    .read_packet    = webvtt_read_packet,
    .read_seek2     = webvtt_read_seek,
    .read_close     = webvtt_read_close,
    .extensions     = "vtt",
    .priv_class     = &webvtt_demuxer_class,
}

Definition at line 213 of file webvttdec.c.