2 Copyright (C) 2013-2021 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/>.
22 #ifndef DCPOMATIC_CAPTION_DECODER_H
23 #define DCPOMATIC_CAPTION_DECODER_H
29 #include "content_text.h"
30 #include "decoder_part.h"
31 #include <dcp/subtitle_string.h>
32 #include <boost/signals2.hpp>
42 class TextDecoder : public DecoderPart
45 TextDecoder (Decoder* parent, std::shared_ptr<const TextContent>);
47 boost::optional<dcpomatic::ContentTime> position (std::shared_ptr<const Film>) const override {
51 void emit_bitmap_start (ContentBitmapText const& bitmap);
52 void emit_bitmap (dcpomatic::ContentTimePeriod period, std::shared_ptr<const Image> image, dcpomatic::Rect<double> rect);
53 void emit_plain_start (dcpomatic::ContentTime from, std::vector<dcp::SubtitleString> s, dcp::Standard valign_standard);
54 void emit_plain_start (dcpomatic::ContentTime from, sub::Subtitle const & subtitle);
55 void emit_plain (dcpomatic::ContentTimePeriod period, std::vector<dcp::SubtitleString> s, dcp::Standard valign_standard);
56 void emit_plain (dcpomatic::ContentTimePeriod period, sub::Subtitle const & subtitle);
57 void emit_stop (dcpomatic::ContentTime to);
59 void maybe_set_position (dcpomatic::ContentTime position);
61 void seek () override;
63 std::shared_ptr<const TextContent> content () const {
67 boost::signals2::signal<void (ContentBitmapText)> BitmapStart;
68 boost::signals2::signal<void (ContentStringText)> PlainStart;
69 boost::signals2::signal<void (dcpomatic::ContentTime)> Stop;
72 std::shared_ptr<const TextContent> _content;
73 boost::optional<dcpomatic::ContentTime> _position;