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0e7782c08e
The "Default" style written in the header is ignored unless you explicit it in the Dialogue events (it was valid, just ignored). This requires an update of the SubRip test since the ASS output obviously changes.
105 lines
4.0 KiB
C
105 lines
4.0 KiB
C
/*
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* SSA/ASS common functions
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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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#include "libavutil/avstring.h"
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int ff_ass_subtitle_header(AVCodecContext *avctx,
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const char *font, int font_size,
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int color, int back_color,
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int bold, int italic, int underline,
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int alignment)
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{
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avctx->subtitle_header = av_asprintf(
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"[Script Info]\r\n"
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"ScriptType: v4.00+\r\n"
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"\r\n"
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"[V4+ Styles]\r\n"
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"Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, AlphaLevel, Encoding\r\n"
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"Style: Default,%s,%d,&H%x,&H%x,&H%x,&H%x,%d,%d,%d,1,1,0,%d,10,10,10,0,0\r\n"
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"\r\n"
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"[Events]\r\n"
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"Format: Layer, Start, End, Style, Text\r\n",
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font, font_size, color, color, back_color, back_color,
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-bold, -italic, -underline, alignment);
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if (!avctx->subtitle_header)
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return AVERROR(ENOMEM);
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avctx->subtitle_header_size = strlen(avctx->subtitle_header);
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return 0;
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}
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int ff_ass_subtitle_header_default(AVCodecContext *avctx)
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{
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return ff_ass_subtitle_header(avctx, ASS_DEFAULT_FONT,
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ASS_DEFAULT_FONT_SIZE,
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ASS_DEFAULT_COLOR,
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ASS_DEFAULT_BACK_COLOR,
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ASS_DEFAULT_BOLD,
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ASS_DEFAULT_ITALIC,
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ASS_DEFAULT_UNDERLINE,
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ASS_DEFAULT_ALIGNMENT);
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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 duration, int raw)
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{
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int len = 0, dlen;
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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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if (duration == -1)
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snprintf(s_end, sizeof(s_end), "9:59:59.99");
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else
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ts_to_string(s_end, sizeof(s_end), ts_start + duration);
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len = snprintf(header, sizeof(header), "Dialogue: 0,%s,%s,Default,",
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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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av_strlcpy(rects[sub->num_rects]->ass + len, dialog, dlen + 1);
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sub->num_rects++;
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return dlen;
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}
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