0,0 → 1,93 |
/* |
* SSA/ASS common functions |
* 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" |
|
/** |
* @name Default values for ASS style |
* @{ |
*/ |
#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 duration duration for this dialog (in 1/100 second unit), can be -1 |
* to last until the end of the presentation |
* @param raw when set to 2, it indicates that dialog contains an ASS |
* dialog line as muxed in Matroska |
* when set to 1, it indicates that dialog contains a whole SSA |
* 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 duration, int raw); |
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#endif /* AVCODEC_ASS_H */ |