making act segmenter

1 files changed, 91 insertions, 0 deletions

diff --git a/ffmpeg/libavcodec/ass.h b/ffmpeg/libavcodec/ass.h
new file mode 100644
index 0000000..e9339e4
--- /dev/null
+++ b/ffmpeg/libavcodec/ass.h
@@ -0,0 +1,91 @@
+/*
+ * 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 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 duration, int raw);
+
+#endif /* AVCODEC_ASS_H */