2 Copyright (C) 2014-2020 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.
25 #include "atmos_metadata.h"
28 #include <dcp/mono_picture_asset_reader.h>
29 #include <dcp/stereo_picture_asset_reader.h>
30 #include <dcp/sound_asset_reader.h>
31 #include <dcp/subtitle_asset.h>
39 struct dcp_subtitle_within_dcp_test;
41 class DCPDecoder : public DCP, public Decoder
45 boost::shared_ptr<const Film> film,
46 boost::shared_ptr<const DCPContent>,
49 boost::shared_ptr<DCPDecoder> old
52 std::list<boost::shared_ptr<dcp::Reel> > reels () const {
56 void set_decode_referenced (bool r);
57 void set_forced_reduction (boost::optional<int> reduction);
60 void seek (dcpomatic::ContentTime t, bool accurate);
62 std::string lazy_digest () const {
66 dcpomatic::ContentTime position () const;
69 friend struct dcp_subtitle_within_dcp_test;
73 void pass_texts (dcpomatic::ContentTime next, dcp::Size size);
75 dcpomatic::ContentTime next,
76 boost::shared_ptr<dcp::SubtitleAsset> asset,
79 boost::shared_ptr<TextDecoder> decoder,
82 std::string calculate_lazy_digest (boost::shared_ptr<const DCPContent>) const;
84 /** Time of next thing to return from pass relative to the start of _reel */
85 dcpomatic::ContentTime _next;
86 std::list<boost::shared_ptr<dcp::Reel> > _reels;
88 std::list<boost::shared_ptr<dcp::Reel> >::iterator _reel;
89 /** Offset of _reel from the start of the content in frames */
91 /** Reader for current mono picture asset, if applicable */
92 boost::shared_ptr<dcp::MonoPictureAssetReader> _mono_reader;
93 /** Reader for current stereo picture asset, if applicable */
94 boost::shared_ptr<dcp::StereoPictureAssetReader> _stereo_reader;
95 /** Reader for current sound asset, if applicable */
96 boost::shared_ptr<dcp::SoundAssetReader> _sound_reader;
97 boost::shared_ptr<dcp::AtmosAssetReader> _atmos_reader;
98 boost::optional<AtmosMetadata> _atmos_metadata;
100 bool _decode_referenced;
101 boost::optional<int> _forced_reduction;
103 std::string _lazy_digest;