ass.c File Reference

#include "avcodec.h"
#include "ass.h"
#include "libavutil/avassert.h"
#include "libavutil/avstring.h"
#include "libavutil/common.h"

Go to the source code of this file.

Functions
int	ff_ass_subtitle_header (AVCodecContext *avctx, const char *font, int font_size, int color, int back_color, int bold, int italic, int underline, int alignment)
	Generate a suitable AVCodecContext.subtitle_header for SUBTITLE_ASS.
int	ff_ass_subtitle_header_default (AVCodecContext *avctx)
	Generate a suitable AVCodecContext.subtitle_header for SUBTITLE_ASS with default style.
static int	ts_to_string (char *str, int strlen, int ts)
int	ff_ass_add_rect (AVSubtitle *sub, const char *dialog, int ts_start, int duration, int raw)
	Add an ASS dialog line to an AVSubtitle as a new AVSubtitleRect.

Function Documentation

int ff_ass_subtitle_header	(	AVCodecContext *	avctx,
		const char *	font,
		int	font_size,
		int	color,
		int	back_color,
		int	bold,
		int	italic,
		int	underline,
		int	alignment
	)

Generate a suitable AVCodecContext.subtitle_header for SUBTITLE_ASS.

Parameters

avctx	pointer to the AVCodecContext
font	name of the default font face to use
font_size	default font size to use
color	default text color to use (ABGR)
back_color	default background color to use (ABGR)
bold	1 for bold text, 0 for normal text
italic	1 for italic text, 0 for normal text
underline	1 for underline text, 0 for normal text
alignment	position of the text (left, center, top...), defined after the layout of the numpad (1-3 sub, 4-6 mid, 7-9 top)

Returns

>= 0 on success otherwise an error code <0

Definition at line 28 of file ass.c.

Referenced by ff_ass_subtitle_header_default(), and microdvd_init().

int ff_ass_subtitle_header_default

(

AVCodecContext *

avctx

)

Generate a suitable AVCodecContext.subtitle_header for SUBTITLE_ASS with default style.

Parameters

avctx

pointer to the AVCodecContext

Returns

>= 0 on success otherwise an error code <0

Definition at line 53 of file ass.c.

Referenced by mov_text_init(), and sami_init().

static int ts_to_string ( char *  str, int  strlen, int  ts  )

static

Definition at line 65 of file ass.c.

Referenced by ff_ass_add_rect().

int ff_ass_add_rect	(	AVSubtitle *	sub,
		const char *	dialog,
		int	ts_start,
		int	duration,
		int	raw
	)

Add an ASS dialog line to an AVSubtitle as a new AVSubtitleRect.

Parameters

sub	pointer to the AVSubtitle
dialog	ASS dialog to add to sub
ts_start	start timestamp for this dialog (in 1/100 second unit)
duration	duration for this dialog (in 1/100 second unit), can be -1 to last until the end of the presentation
raw	when set to 1, it indicates that dialog contains a whole ASS dialog line which should be copied as is. when set to 0, it indicates that dialog contains only the Text part of the ASS dialog line, the rest of the line will be generated.

Returns

number of characters read from dialog. It can be less than the whole length of dialog, if dialog contains several lines of text. A negative value indicates an error.

Definition at line 74 of file ass.c.

Referenced by ass_decode_frame(), jacosub_decode_frame(), microdvd_decode_frame(), realtext_decode_frame(), and subviewer_decode_frame().