#include "avformat.h"
#include "subtitles.h"
#include "libavutil/avassert.h"
#include "libavutil/avstring.h"

Functions
AVPacket *	ff_subtitles_queue_insert (FFDemuxSubtitlesQueue q, const uint8_t event, int len, int merge)
	Insert a new subtitle event.

static int	cmp_pkt_sub_ts_pos (const void a, const void b)

static int	cmp_pkt_sub_pos_ts (const void a, const void b)

void	ff_subtitles_queue_finalize (FFDemuxSubtitlesQueue *q)
	Set missing durations and sort subtitles by PTS, and then byte position.

int	ff_subtitles_queue_read_packet (FFDemuxSubtitlesQueue q, AVPacket pkt)
	Generic read_packet() callback for subtitles demuxers using this queue system.

static int	search_sub_ts (const FFDemuxSubtitlesQueue *q, int64_t ts)

int	ff_subtitles_queue_seek (FFDemuxSubtitlesQueue q, AVFormatContext s, int stream_index, int64_t min_ts, int64_t ts, int64_t max_ts, int flags)
	Update current_sub_idx to emulate a seek.

void	ff_subtitles_queue_clean (FFDemuxSubtitlesQueue *q)
	Remove and destroy all the subtitles packets.

int	ff_smil_extract_next_chunk (AVIOContext pb, AVBPrint buf, char *c)
	SMIL helper to load next chunk ("<...>" or untagged content) in buf.

const char *	ff_smil_get_attr_ptr (const char s, const char attr)
	SMIL helper to point on the value of an attribute in the given tag.

static int	is_eol (char c)

void	ff_subtitles_read_chunk (AVIOContext pb, AVBPrint buf)
	Read a subtitles chunk.

Function Documentation

AVPacket* ff_subtitles_queue_insert	(	FFDemuxSubtitlesQueue *	q,
		const uint8_t *	event,
		int	len,
		int	merge
	)

Insert a new subtitle event.

Parameters

event	the subtitle line, may not be zero terminated
len	the length of the event (in strlen() sense, so without '\0')
merge	set to 1 if the current event should be concatenated with the previous one instead of adding a new entry, 0 otherwise

Definition at line 26 of file subtitles.c.

Referenced by aqt_read_header(), ass_read_header(), jacosub_read_header(), microdvd_read_header(), mpl2_read_header(), mpsub_read_header(), parse_file(), pjs_read_header(), realtext_read_header(), sami_read_header(), srt_read_header(), subviewer1_read_header(), subviewer_read_header(), vplayer_read_header(), and webvtt_read_header().

static int cmp_pkt_sub_ts_pos	(	const void *	a,
		const void *	b
	)

static

Definition at line 60 of file subtitles.c.

Referenced by ff_subtitles_queue_finalize().

static int cmp_pkt_sub_pos_ts	(	const void *	a,
		const void *	b
	)

static

Definition at line 72 of file subtitles.c.

Referenced by ff_subtitles_queue_finalize().

void ff_subtitles_queue_finalize ( FFDemuxSubtitlesQueue * q )

Set missing durations and sort subtitles by PTS, and then byte position.

Definition at line 84 of file subtitles.c.

Referenced by aqt_read_header(), ass_read_header(), jacosub_read_header(), microdvd_read_header(), mpl2_read_header(), mpsub_read_header(), pjs_read_header(), realtext_read_header(), sami_read_header(), srt_read_header(), subviewer1_read_header(), subviewer_read_header(), tedcaptions_read_header(), vplayer_read_header(), and webvtt_read_header().

int ff_subtitles_queue_read_packet	(	FFDemuxSubtitlesQueue *	q,
		AVPacket *	pkt
	)

Generic read_packet() callback for subtitles demuxers using this queue system.

Definition at line 96 of file subtitles.c.

Referenced by aqt_read_packet(), ass_read_packet(), jacosub_read_packet(), microdvd_read_packet(), mpl2_read_packet(), mpsub_read_packet(), pjs_read_packet(), realtext_read_packet(), sami_read_packet(), srt_read_packet(), subviewer1_read_packet(), subviewer_read_packet(), tedcaptions_read_packet(), vplayer_read_packet(), and webvtt_read_packet().

static int search_sub_ts	(	const FFDemuxSubtitlesQueue *	q,
		int64_t	ts
	)

static

Definition at line 111 of file subtitles.c.

Referenced by ff_subtitles_queue_seek().

int ff_subtitles_queue_seek	(	FFDemuxSubtitlesQueue *	q,
		AVFormatContext *	s,
		int	stream_index,
		int64_t	min_ts,
		int64_t	ts,
		int64_t	max_ts,
		int	flags
	)

Update current_sub_idx to emulate a seek.

Except the first parameter, it matches AVInputFormat->read_seek2 prototypes.

Definition at line 133 of file subtitles.c.

Referenced by aqt_read_seek(), ass_read_seek(), jacosub_read_seek(), microdvd_read_seek(), mpl2_read_seek(), mpsub_read_seek(), pjs_read_seek(), realtext_read_seek(), sami_read_seek(), srt_read_seek(), subviewer1_read_seek(), subviewer_read_seek(), tedcaptions_read_seek(), vplayer_read_seek(), and webvtt_read_seek().

void ff_subtitles_queue_clean ( FFDemuxSubtitlesQueue * q )

Remove and destroy all the subtitles packets.

Definition at line 185 of file subtitles.c.

Referenced by aqt_read_close(), ass_read_close(), jacosub_read_close(), microdvd_read_close(), mpl2_read_close(), mpsub_read_close(), pjs_read_close(), realtext_read_close(), sami_read_close(), srt_read_close(), subviewer1_read_close(), subviewer_read_close(), tedcaptions_read_close(), tedcaptions_read_header(), vplayer_read_close(), and webvtt_read_close().

int ff_smil_extract_next_chunk	(	AVIOContext *	pb,
		AVBPrint *	buf,
		char *	c
	)

SMIL helper to load next chunk ("<...>" or untagged content) in buf.

Parameters

c	cached character, to avoid a backward seek

Definition at line 195 of file subtitles.c.

Referenced by realtext_read_header(), and sami_read_header().

const char* ff_smil_get_attr_ptr	(	const char *	s,
		const char *	attr
	)

SMIL helper to point on the value of an attribute in the given tag.

Parameters

s	SMIL tag ("<...>")
attr	the attribute to look for

Definition at line 218 of file subtitles.c.

Referenced by realtext_read_header(), and sami_read_header().

static int is_eol ( char c )

inlinestatic

Definition at line 238 of file subtitles.c.

Referenced by ff_subtitles_read_chunk().

void ff_subtitles_read_chunk	(	AVIOContext *	pb,
		AVBPrint *	buf
	)

Read a subtitles chunk.

A chunk is defined by a multiline "event", ending with a second line break. The trailing line breaks are trimmed. CRLF are supported. Example: "foo\r\nbar\r\n\r\nnext" will print "foo\r\nbar" into buf, and pb will focus on the 'n' of the "next" string.

Parameters

pb	I/O context
buf	an initialized buf where the chunk is written

Note: buf is cleared before writing into it.

Definition at line 243 of file subtitles.c.

Referenced by mpsub_read_header(), srt_read_header(), and webvtt_read_header().

Functions

Function Documentation