tedcaptionsdec.c File Reference

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

Go to the source code of this file.

Data Structures
struct	TEDCaptionsDemuxer

Macros
#define	BETWEEN(a, amin, amax)   ((unsigned)((a) - (amin)) <= (amax) - (amin))
#define	HEX_DIGIT_TEST(c)   (BETWEEN(c, '0', '9') || BETWEEN((c) | 32, 'a', 'z'))
#define	HEX_DIGIT_VAL(c)   ((c) <= '9' ? (c) - '0' : ((c) | 32) - 'a' + 10)
#define	ERR_CODE(c)   ((c) < 0 ? (c) : AVERROR_INVALIDDATA)

Functions
static void	av_bprint_utf8 (AVBPrint *bp, unsigned c)
static void	next_byte (AVIOContext *pb, int *cur_byte)
static void	skip_spaces (AVIOContext *pb, int *cur_byte)
static int	expect_byte (AVIOContext *pb, int *cur_byte, uint8_t c)
static int	parse_string (AVIOContext *pb, int *cur_byte, AVBPrint *bp, int full)
static int	parse_label (AVIOContext *pb, int *cur_byte, AVBPrint *bp)
static int	parse_boolean (AVIOContext *pb, int *cur_byte, int *result)
static int	parse_int (AVIOContext *pb, int *cur_byte, int64_t *result)
static int	parse_file (AVIOContext *pb, FFDemuxSubtitlesQueue *subs)
static av_cold int	tedcaptions_read_header (AVFormatContext *avf)
static int	tedcaptions_read_packet (AVFormatContext *avf, AVPacket *packet)
static int	tedcaptions_read_close (AVFormatContext *avf)
static av_cold int	tedcaptions_read_probe (AVProbeData *p)
static int	tedcaptions_read_seek (AVFormatContext *avf, int stream_index, int64_t min_ts, int64_t ts, int64_t max_ts, int flags)

Variables
static const AVOption	tedcaptions_options []
static const AVClass	tedcaptions_demuxer_class
AVInputFormat	ff_tedcaptions_demuxer

Macro Definition Documentation

#define BETWEEN	(		a,
			amin,
			amax
	)		((unsigned)((a) - (amin)) <= (amax) - (amin))

Definition at line 50 of file tedcaptionsdec.c.

Referenced by parse_boolean(), and parse_int().

#define HEX_DIGIT_TEST

(

c

)

(BETWEEN(c, '0', '9') || BETWEEN((c) | 32, 'a', 'z'))

Definition at line 52 of file tedcaptionsdec.c.

Referenced by parse_string().

#define HEX_DIGIT_VAL

(

c

)

((c) <= '9' ? (c) - '0' : ((c) | 32) - 'a' + 10)

Definition at line 53 of file tedcaptionsdec.c.

Referenced by parse_string().

#define ERR_CODE

(

c

)

((c) < 0 ? (c) : AVERROR_INVALIDDATA)

Definition at line 54 of file tedcaptionsdec.c.

Referenced by expect_byte(), parse_file(), and parse_string().

Function Documentation

static void av_bprint_utf8 ( AVBPrint *  bp, unsigned  c  )

static

Definition at line 56 of file tedcaptionsdec.c.

Referenced by parse_string().

static void next_byte ( AVIOContext *  pb, int *  cur_byte  )

static

Definition at line 70 of file tedcaptionsdec.c.

Referenced by expect_byte(), parse_boolean(), parse_file(), parse_int(), parse_string(), and skip_spaces().

static void skip_spaces ( AVIOContext *  pb, int *  cur_byte  )

static

Definition at line 77 of file tedcaptionsdec.c.

Referenced by expect_byte(), parse_boolean(), parse_file(), and parse_int().

static int expect_byte ( AVIOContext *  pb, int *  cur_byte, uint8_t  c  )

static

Definition at line 84 of file tedcaptionsdec.c.

Referenced by parse_file(), parse_label(), and parse_string().

static int parse_string ( AVIOContext *  pb, int *  cur_byte, AVBPrint *  bp, int  full  )

static

Definition at line 93 of file tedcaptionsdec.c.

Referenced by parse_file(), and parse_label().

static int parse_label ( AVIOContext *  pb, int *  cur_byte, AVBPrint *  bp  )

static

Definition at line 141 of file tedcaptionsdec.c.

Referenced by parse_file().

static int parse_boolean ( AVIOContext *  pb, int *  cur_byte, int *  result  )

static

Definition at line 154 of file tedcaptionsdec.c.

Referenced by parse_file().

static int parse_int ( AVIOContext *  pb, int *  cur_byte, int64_t *  result  )

static

Definition at line 176 of file tedcaptionsdec.c.

Referenced by parse_file().

static int parse_file ( AVIOContext *  pb, FFDemuxSubtitlesQueue *  subs  )

static

Definition at line 191 of file tedcaptionsdec.c.

Referenced by tedcaptions_read_header().

static av_cold int tedcaptions_read_header ( AVFormatContext *  avf )

static

Definition at line 275 of file tedcaptionsdec.c.

static int tedcaptions_read_packet ( AVFormatContext *  avf, AVPacket *  packet  )

static

Definition at line 309 of file tedcaptionsdec.c.

static int tedcaptions_read_close ( AVFormatContext *  avf )

static

Definition at line 316 of file tedcaptionsdec.c.

static av_cold int tedcaptions_read_probe ( AVProbeData *  p )

static

Definition at line 324 of file tedcaptionsdec.c.

static int tedcaptions_read_seek ( AVFormatContext *  avf, int  stream_index, int64_t  min_ts, int64_t  ts, int64_t  max_ts, int  flags  )

static

Definition at line 347 of file tedcaptionsdec.c.

Variable Documentation

const AVOption tedcaptions_options[]

static

Initial value:

= {
    { "start_time", "set the start time (offset) of the subtitles, in ms",
      0x42, AV_OPT_TYPE_INT64,
      { .i64 = 15000 }, INT64_MIN, INT64_MAX,
      AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_DECODING_PARAM },
    { NULL },
}

Definition at line 35 of file tedcaptionsdec.c.

const AVClass tedcaptions_demuxer_class

static

Initial value:

= {
    .class_name = "tedcaptions_demuxer",
    .item_name  = av_default_item_name,
    .option     = tedcaptions_options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 43 of file tedcaptionsdec.c.

AVInputFormat ff_tedcaptions_demuxer

Initial value:

= {
    .name           = "tedcaptions",
    .long_name      = NULL_IF_CONFIG_SMALL("TED Talks captions"),
    .priv_data_size = sizeof(TEDCaptionsDemuxer),
    .priv_class     = &tedcaptions_demuxer_class,
    .read_header    = tedcaptions_read_header,
    .read_packet    = tedcaptions_read_packet,
    .read_close     = tedcaptions_read_close,
    .read_probe     = tedcaptions_read_probe,
    .read_seek2     = tedcaptions_read_seek,
}

Definition at line 356 of file tedcaptionsdec.c.