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68 lines
2.3 KiB
68 lines
2.3 KiB
/* |
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* SSA/ASS common funtions |
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* Copyright (c) 2010 Aurelien Jacobs <aurel@gnuage.org> |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "avcodec.h" |
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#include "ass.h" |
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void ff_ass_init(AVSubtitle *sub) |
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{ |
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memset(sub, 0, sizeof(*sub)); |
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} |
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static int ts_to_string(char *str, int strlen, int ts) |
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{ |
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int h, m, s; |
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h = ts/360000; ts -= 360000*h; |
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m = ts/ 6000; ts -= 6000*m; |
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s = ts/ 100; ts -= 100*s; |
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return snprintf(str, strlen, "%d:%02d:%02d.%02d", h, m, s, ts); |
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} |
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int ff_ass_add_rect(AVSubtitle *sub, const char *dialog, |
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int ts_start, int ts_end, int raw) |
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{ |
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int len = 0, dlen, duration = ts_end - ts_start; |
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char s_start[16], s_end[16], header[48] = {0}; |
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AVSubtitleRect **rects; |
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if (!raw) { |
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ts_to_string(s_start, sizeof(s_start), ts_start); |
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ts_to_string(s_end, sizeof(s_end), ts_end ); |
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len = snprintf(header, sizeof(header), "Dialogue: 0,%s,%s,", |
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s_start, s_end); |
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} |
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dlen = strcspn(dialog, "\n"); |
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dlen += dialog[dlen] == '\n'; |
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rects = av_realloc(sub->rects, (sub->num_rects+1) * sizeof(*sub->rects)); |
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if (!rects) |
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return AVERROR(ENOMEM); |
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sub->rects = rects; |
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sub->end_display_time = FFMAX(sub->end_display_time, 10 * duration); |
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rects[sub->num_rects] = av_mallocz(sizeof(*rects[0])); |
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rects[sub->num_rects]->type = SUBTITLE_ASS; |
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rects[sub->num_rects]->ass = av_malloc(len + dlen + 1); |
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strcpy (rects[sub->num_rects]->ass , header); |
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strncpy(rects[sub->num_rects]->ass + len, dialog, dlen); |
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sub->num_rects++; |
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return dlen; |
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}
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