2 Copyright (C) 2013-2014 Carl Hetherington <cth@carlh.net>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #include "ffmpeg_subtitle_stream.h"
21 #include "raw_convert.h"
22 #include <libxml++/libxml++.h>
23 #include <boost/foreach.hpp>
29 /** Construct a SubtitleStream from a value returned from to_string().
30 * @param t String returned from to_string().
31 * @param v State file version.
33 FFmpegSubtitleStream::FFmpegSubtitleStream (cxml::ConstNodePtr node)
36 BOOST_FOREACH (cxml::NodePtr i, node->node_children ("Period")) {
39 ContentTime (i->number_child<ContentTime::Type> ("From")),
40 ContentTime (i->number_child<ContentTime::Type> ("To"))
47 FFmpegSubtitleStream::as_xml (xmlpp::Node* root) const
49 FFmpegStream::as_xml (root);
51 for (map<ContentTime, ContentTime>::const_iterator i = _subtitles.begin(); i != _subtitles.end(); ++i) {
52 xmlpp::Node* node = root->add_child ("Period");
53 node->add_child("From")->add_child_text (raw_convert<string> (i->first.get ()));
54 node->add_child("To")->add_child_text (raw_convert<string> (i->second.get ()));
59 FFmpegSubtitleStream::add_subtitle (ContentTimePeriod period)
61 DCPOMATIC_ASSERT (_subtitles.find (period.from) == _subtitles.end ());
62 _subtitles[period.from] = period.to;
65 list<ContentTimePeriod>
66 FFmpegSubtitleStream::subtitles_during (ContentTimePeriod period, bool starting) const
68 list<ContentTimePeriod> d;
70 /* XXX: inefficient */
71 for (map<ContentTime, ContentTime>::const_iterator i = _subtitles.begin(); i != _subtitles.end(); ++i) {
72 if ((starting && period.contains (i->first)) || (!starting && period.overlaps (ContentTimePeriod (i->first, i->second)))) {
73 d.push_back (ContentTimePeriod (i->first, i->second));
81 FFmpegSubtitleStream::find_subtitle_to (ContentTime from) const
83 map<ContentTime, ContentTime>::const_iterator i = _subtitles.find (from);
84 DCPOMATIC_ASSERT (i != _subtitles.end ());