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/*
Copyright (C) 2013-2021 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_CAPTION_DECODER_H
#define DCPOMATIC_CAPTION_DECODER_H
#include "decoder.h"
#include "rect.h"
#include "types.h"
#include "content_text.h"
#include "decoder_part.h"
#include <dcp/subtitle_string.h>
#include <boost/signals2.hpp>
namespace sub {
class Subtitle;
}
class Image;
class TextDecoder : public DecoderPart
{
public:
TextDecoder (Decoder* parent, std::shared_ptr<const TextContent>);
boost::optional<dcpomatic::ContentTime> position (std::shared_ptr<const Film>) const override {
return _position;
}
void emit_bitmap_start (ContentBitmapText const& bitmap);
void emit_bitmap (dcpomatic::ContentTimePeriod period, std::shared_ptr<const Image> image, dcpomatic::Rect<double> rect);
void emit_plain_start (dcpomatic::ContentTime from, std::vector<dcp::SubtitleString> s);
void emit_plain_start (dcpomatic::ContentTime from, sub::Subtitle const & subtitle);
void emit_plain (dcpomatic::ContentTimePeriod period, std::vector<dcp::SubtitleString> s);
void emit_plain (dcpomatic::ContentTimePeriod period, sub::Subtitle const & subtitle);
void emit_stop (dcpomatic::ContentTime to);
void maybe_set_position (dcpomatic::ContentTime position);
void seek () override;
std::shared_ptr<const TextContent> content () const {
return _content;
}
boost::signals2::signal<void (ContentBitmapText)> BitmapStart;
boost::signals2::signal<void (ContentStringText)> PlainStart;
boost::signals2::signal<void (dcpomatic::ContentTime)> Stop;
private:
std::shared_ptr<const TextContent> _content;
boost::optional<dcpomatic::ContentTime> _position;
};
#endif
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