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/*
Copyright (C) 2013-2017 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/>.
*/
#ifndef DCPOMATIC_SUBTITLE_DECODER_H
#define DCPOMATIC_SUBTITLE_DECODER_H
#include "decoder.h"
#include "rect.h"
#include "types.h"
#include "content_subtitle.h"
#include "decoder_part.h"
#include <dcp/subtitle_string.h>
#include <boost/signals2.hpp>
namespace sub {
class Subtitle;
}
class Image;
class SubtitleDecoder : public DecoderPart
{
public:
/** Second parameter to the _during functions is true if we
* want only subtitles that start during the period,
* otherwise we want subtitles that overlap the period.
*/
SubtitleDecoder (
Decoder* parent,
boost::shared_ptr<const SubtitleContent>,
boost::shared_ptr<Log> log
);
ContentTime position () const {
return _position;
}
void emit_image_start (ContentTime from, boost::shared_ptr<Image> image, dcpomatic::Rect<double> rect);
void emit_text_start (ContentTime from, std::list<dcp::SubtitleString> s);
void emit_text_start (ContentTime from, sub::Subtitle const & subtitle);
void emit_text (ContentTimePeriod period, std::list<dcp::SubtitleString> s);
void emit_text (ContentTimePeriod period, sub::Subtitle const & subtitle);
void emit_stop (ContentTime to);
void seek ();
boost::shared_ptr<const SubtitleContent> content () const {
return _content;
}
boost::signals2::signal<void (ContentImageSubtitle)> ImageStart;
boost::signals2::signal<void (ContentTextSubtitle)> TextStart;
boost::signals2::signal<void (ContentTime)> Stop;
private:
boost::shared_ptr<const SubtitleContent> _content;
ContentTime _position;
};
#endif
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