mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
91 lines
3.4 KiB
91 lines
3.4 KiB
/* |
|
* SSA/ASS common funtions |
|
* Copyright (c) 2010 Aurelien Jacobs <aurel@gnuage.org> |
|
* |
|
* This file is part of FFmpeg. |
|
* |
|
* FFmpeg is free software; you can redistribute it and/or |
|
* modify it under the terms of the GNU Lesser General Public |
|
* License as published by the Free Software Foundation; either |
|
* version 2.1 of the License, or (at your option) any later version. |
|
* |
|
* FFmpeg is distributed in the hope that it will be useful, |
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
|
* Lesser General Public License for more details. |
|
* |
|
* You should have received a copy of the GNU Lesser General Public |
|
* License along with FFmpeg; if not, write to the Free Software |
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
|
*/ |
|
|
|
#ifndef AVCODEC_ASS_H |
|
#define AVCODEC_ASS_H |
|
|
|
#include "avcodec.h" |
|
|
|
/** |
|
* Default values for ASS style. |
|
* @defgroup ass_default |
|
* @{ |
|
*/ |
|
#define ASS_DEFAULT_FONT "Arial" |
|
#define ASS_DEFAULT_FONT_SIZE 16 |
|
#define ASS_DEFAULT_COLOR 0xffffff |
|
#define ASS_DEFAULT_BACK_COLOR 0 |
|
#define ASS_DEFAULT_BOLD 0 |
|
#define ASS_DEFAULT_ITALIC 0 |
|
#define ASS_DEFAULT_UNDERLINE 0 |
|
#define ASS_DEFAULT_ALIGNMENT 2 |
|
/** @} */ |
|
|
|
/** |
|
* Generate a suitable AVCodecContext.subtitle_header for SUBTITLE_ASS. |
|
* |
|
* @param avctx pointer to the AVCodecContext |
|
* @param font name of the default font face to use |
|
* @param font_size default font size to use |
|
* @param color default text color to use (ABGR) |
|
* @param back_color default background color to use (ABGR) |
|
* @param bold 1 for bold text, 0 for normal text |
|
* @param italic 1 for italic text, 0 for normal text |
|
* @param underline 1 for underline text, 0 for normal text |
|
* @param alignment position of the text (left, center, top...), defined after |
|
* the layout of the numpad (1-3 sub, 4-6 mid, 7-9 top) |
|
* @return >= 0 on success otherwise an error code <0 |
|
*/ |
|
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 |
|
* with default style. |
|
* |
|
* @param avctx pointer to the AVCodecContext |
|
* @return >= 0 on success otherwise an error code <0 |
|
*/ |
|
int ff_ass_subtitle_header_default(AVCodecContext *avctx); |
|
|
|
/** |
|
* Add an ASS dialog line to an AVSubtitle as a new AVSubtitleRect. |
|
* |
|
* @param sub pointer to the AVSubtitle |
|
* @param dialog ASS dialog to add to sub |
|
* @param ts_start start timestamp for this dialog (in 1/100 second unit) |
|
* @param ts_end end timestamp for this dialog (in 1/100 second unit) |
|
* @param 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. |
|
* @return 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. |
|
*/ |
|
int ff_ass_add_rect(AVSubtitle *sub, const char *dialog, |
|
int ts_start, int ts_end, int raw); |
|
|
|
#endif /* AVCODEC_ASS_H */
|
|
|