2 Copyright (C) 2014-2016 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 /** @file src/dcp_decoder.h
22 * @brief A decoder of existing DCPs.
27 #include <dcp/mono_picture_asset_reader.h>
28 #include <dcp/stereo_picture_asset_reader.h>
29 #include <dcp/sound_asset_reader.h>
30 #include <dcp/subtitle_asset.h>
38 struct dcp_subtitle_within_dcp_test;
40 class DCPDecoder : public DCP, public Decoder
44 boost::shared_ptr<const Film> film,
45 boost::shared_ptr<const DCPContent>,
48 boost::shared_ptr<DCPDecoder> old
51 std::list<boost::shared_ptr<dcp::Reel> > reels () const {
55 void set_decode_referenced (bool r);
56 void set_forced_reduction (boost::optional<int> reduction);
59 void seek (dcpomatic::ContentTime t, bool accurate);
61 std::string lazy_digest () const {
65 dcpomatic::ContentTime position () const;
68 friend struct dcp_subtitle_within_dcp_test;
72 void pass_texts (dcpomatic::ContentTime next, dcp::Size size);
74 dcpomatic::ContentTime next,
75 boost::shared_ptr<dcp::SubtitleAsset> asset,
78 boost::shared_ptr<TextDecoder> decoder,
81 std::string calculate_lazy_digest (boost::shared_ptr<const DCPContent>) const;
83 /** Time of next thing to return from pass relative to the start of _reel */
84 dcpomatic::ContentTime _next;
85 std::list<boost::shared_ptr<dcp::Reel> > _reels;
87 std::list<boost::shared_ptr<dcp::Reel> >::iterator _reel;
88 /** Offset of _reel from the start of the content in frames */
90 /** Reader for current mono picture asset, if applicable */
91 boost::shared_ptr<dcp::MonoPictureAssetReader> _mono_reader;
92 /** Reader for current stereo picture asset, if applicable */
93 boost::shared_ptr<dcp::StereoPictureAssetReader> _stereo_reader;
94 /** Reader for current sound asset, if applicable */
95 boost::shared_ptr<dcp::SoundAssetReader> _sound_reader;
97 bool _decode_referenced;
98 boost::optional<int> _forced_reduction;
100 std::string _lazy_digest;