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/*
Copyright (C) 2014-2016 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
DCP-o-matic is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
DCP-o-matic 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
#include "text_subtitle_decoder.h"
#include "text_subtitle_content.h"
#include "subtitle_content.h"
#include <dcp/subtitle_string.h>
#include <boost/foreach.hpp>
#include <iostream>
using std::list;
using std::vector;
using std::string;
using std::cout;
using std::max;
using boost::shared_ptr;
using boost::optional;
using boost::dynamic_pointer_cast;
TextSubtitleDecoder::TextSubtitleDecoder (shared_ptr<const TextSubtitleContent> content, shared_ptr<Log> log)
: TextSubtitle (content)
, _next (0)
{
subtitle.reset (new SubtitleDecoder (this, content->subtitle, log));
}
void
TextSubtitleDecoder::seek (ContentTime time, bool accurate)
{
Decoder::seek (time, accurate);
_next = 0;
while (_next < _subtitles.size() && ContentTime::from_seconds (_subtitles[_next].from.all_as_seconds ()) < time) {
++_next;
}
}
bool
TextSubtitleDecoder::pass ()
{
if (_next >= _subtitles.size ()) {
return true;
}
ContentTimePeriod const p = content_time_period (_subtitles[_next]);
subtitle->emit_text (p, _subtitles[_next]);
++_next;
return false;
}
ContentTimePeriod
TextSubtitleDecoder::content_time_period (sub::Subtitle s) const
{
return ContentTimePeriod (
ContentTime::from_seconds (s.from.all_as_seconds()),
ContentTime::from_seconds (s.to.all_as_seconds())
);
}
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