libavformat/subtitles.c File Reference

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

Go to the source code of this file.

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 (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.
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.

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Function Documentation

static int cmp_pkt_sub	(	const void *	a,
		const void *	b
	)			[static]

Definition at line 60 of file subtitles.c.

Referenced by ff_subtitles_queue_finalize().

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 104 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 127 of file subtitles.c.

Referenced by realtext_read_header(), and sami_read_header().

void ff_subtitles_queue_clean

(

FFDemuxSubtitlesQueue *

q

)

Remove and destroy all the subtitles packets.

Definition at line 94 of file subtitles.c.

Referenced by jacosub_read_close(), microdvd_read_close(), realtext_read_close(), sami_read_close(), subviewer_read_close(), and webvtt_read_close().

void ff_subtitles_queue_finalize

(

FFDemuxSubtitlesQueue *

q

)

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

Definition at line 72 of file subtitles.c.

Referenced by jacosub_read_header(), microdvd_read_header(), realtext_read_header(), sami_read_header(), subviewer_read_header(), and webvtt_read_header().

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 '')
	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 25 of file subtitles.c.

Referenced by jacosub_read_header(), microdvd_read_header(), realtext_read_header(), sami_read_header(), subviewer_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 82 of file subtitles.c.

Referenced by jacosub_read_packet(), microdvd_read_packet(), realtext_read_packet(), sami_read_packet(), subviewer_read_packet(), and webvtt_read_packet().