2 Copyright (C) 2014-2018 Carl Hetherington <cth@carlh.net>
4 This file is part of DCP-o-matic.
6 DCP-o-matic is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 DCP-o-matic is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
21 #include "string_text_file_decoder.h"
22 #include "string_text_file_content.h"
23 #include "text_content.h"
24 #include "text_decoder.h"
25 #include <dcp/subtitle_string.h>
26 #include <boost/foreach.hpp>
34 using boost::shared_ptr;
35 using boost::optional;
36 using boost::dynamic_pointer_cast;
37 using namespace dcpomatic;
39 StringTextFileDecoder::StringTextFileDecoder (shared_ptr<const Film> film, shared_ptr<const StringTextFileContent> content)
41 , StringTextFile (content)
45 if (!_subtitles.empty()) {
46 first = content_time_period(_subtitles[0]).from;
48 text.push_back (shared_ptr<TextDecoder> (new TextDecoder (this, content->only_text(), first)));
52 StringTextFileDecoder::seek (ContentTime time, bool accurate)
54 /* It's worth back-tracking a little here as decoding is cheap and it's nice if we don't miss
55 too many subtitles when seeking.
57 time -= ContentTime::from_seconds (5);
58 if (time < ContentTime()) {
62 Decoder::seek (time, accurate);
65 while (_next < _subtitles.size() && ContentTime::from_seconds (_subtitles[_next].from.all_as_seconds ()) < time) {
71 StringTextFileDecoder::pass ()
73 if (_next >= _subtitles.size ()) {
77 ContentTimePeriod const p = content_time_period (_subtitles[_next]);
78 only_text()->emit_plain (p, _subtitles[_next]);
85 StringTextFileDecoder::content_time_period (sub::Subtitle s) const
87 return ContentTimePeriod (
88 ContentTime::from_seconds (s.from.all_as_seconds()),
89 ContentTime::from_seconds (s.to.all_as_seconds())