2 Copyright (C) 2013-2020 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 #ifndef DCPOMATIC_PLAYLIST_H
22 #define DCPOMATIC_PLAYLIST_H
25 #include "frame_rate_change.h"
26 #include <libcxml/cxml.h>
27 #include <boost/signals2.hpp>
28 #include <boost/thread.hpp>
35 bool operator() (std::shared_ptr<Content> a, std::shared_ptr<Content> b);
39 * @brief A set of Content objects with knowledge of how they should be arranged into
42 class Playlist : public boost::noncopyable
48 void as_xml (xmlpp::Node *, bool with_content_paths);
49 void set_from_xml (std::shared_ptr<const Film> film, cxml::ConstNodePtr node, int version, std::list<std::string>& notes);
51 void add (std::shared_ptr<const Film> film, std::shared_ptr<Content>);
52 void remove (std::shared_ptr<Content>);
53 void remove (ContentList);
54 void move_earlier (std::shared_ptr<const Film> film, std::shared_ptr<Content>);
55 void move_later (std::shared_ptr<const Film> film, std::shared_ptr<Content>);
57 ContentList content () const;
59 std::string video_identifier () const;
61 dcpomatic::DCPTime length (std::shared_ptr<const Film> film) const;
62 boost::optional<dcpomatic::DCPTime> start () const;
63 int64_t required_disk_space (std::shared_ptr<const Film> film, int j2k_bandwidth, int audio_channels, int audio_frame_rate) const;
65 int best_video_frame_rate () const;
66 dcpomatic::DCPTime video_end (std::shared_ptr<const Film> film) const;
67 dcpomatic::DCPTime text_end (std::shared_ptr<const Film> film) const;
68 FrameRateChange active_frame_rate_change (dcpomatic::DCPTime, int dcp_frame_rate) const;
69 std::string content_summary (std::shared_ptr<const Film> film, dcpomatic::DCPTimePeriod period) const;
70 std::pair<double, double> speed_up_range (int dcp_video_frame_rate) const;
72 void set_sequence (bool);
73 void maybe_sequence (std::shared_ptr<const Film> film);
75 void repeat (std::shared_ptr<const Film> film, ContentList, int);
77 /** Emitted when content has been added to or removed from the playlist; implies OrderChanged */
78 mutable boost::signals2::signal<void (ChangeType)> Change;
79 mutable boost::signals2::signal<void ()> OrderChange;
80 /** Emitted when the length might have changed; may sometimes be emitted when it has not */
81 mutable boost::signals2::signal<void ()> LengthChange;
83 mutable boost::signals2::signal<void (ChangeType, std::weak_ptr<Content>, int, bool)> ContentChange;
86 void content_change (std::weak_ptr<const Film>, ChangeType, std::weak_ptr<Content>, int, bool);
88 void reconnect (std::shared_ptr<const Film> film);
90 mutable boost::mutex _mutex;
91 /** List of content. Kept sorted in position order. */
95 std::list<boost::signals2::connection> _content_connections;