ass.c File Reference
#include "avcodec.h"
#include "ass.h"
#include "libavutil/avstring.h"

Go to the source code of this file.

Functions

static 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.
void ff_ass_init (AVSubtitle *sub)
 Initialize an AVSubtitle structure for use with ff_ass_add_rect().
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 ts_end, int raw)
 Add an ASS dialog line to an AVSubtitle as a new AVSubtitleRect.

Function Documentation

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

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

Parameters
subpointer to the AVSubtitle
dialogASS dialog to add to sub
ts_startstart timestamp for this dialog (in 1/100 second unit)
ts_endend timestamp for this dialog (in 1/100 second unit)
rawwhen 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 95 of file ass.c.

Referenced by ass_decode_frame(), and srt_decode_frame().

void ff_ass_init ( AVSubtitle sub)

Initialize an AVSubtitle structure for use with ff_ass_add_rect().

Parameters
subpointer to the AVSubtitle

Definition at line 81 of file ass.c.

Referenced by ass_decode_frame(), and srt_decode_frame().

static 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 
)
static

Generate a suitable AVCodecContext.subtitle_header for SUBTITLE_ASS.

Parameters
avctxpointer to the AVCodecContext
fontname of the default font face to use
font_sizedefault font size to use
colordefault text color to use (ABGR)
back_colordefault background color to use (ABGR)
bold1 for bold text, 0 for normal text
italic1 for italic text, 0 for normal text
underline1 for underline text, 0 for normal text
alignmentposition 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 41 of file ass.c.

Referenced by ff_ass_subtitle_header_default().

int ff_ass_subtitle_header_default ( AVCodecContext avctx)

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

Parameters
avctxpointer to the AVCodecContext
Returns
>= 0 on success otherwise an error code <0

Definition at line 69 of file ass.c.

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

Definition at line 86 of file ass.c.

Referenced by ff_ass_add_rect().