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/*
Copyright (C) 2013-2020 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_PLAYLIST_H
#define DCPOMATIC_PLAYLIST_H
#include "util.h"
#include "frame_rate_change.h"
#include <libcxml/cxml.h>
#include <boost/shared_ptr.hpp>
#include <boost/signals2.hpp>
#include <boost/thread.hpp>
#include <list>
class Film;
struct ContentSorter
{
bool operator() (boost::shared_ptr<Content> a, boost::shared_ptr<Content> b);
};
/** @class Playlist
* @brief A set of Content objects with knowledge of how they should be arranged into
* a DCP.
*/
class Playlist : public boost::noncopyable
{
public:
Playlist ();
~Playlist ();
void as_xml (xmlpp::Node *, bool with_content_paths);
void set_from_xml (boost::shared_ptr<const Film> film, cxml::ConstNodePtr node, int version, std::list<std::string>& notes);
void add (boost::shared_ptr<const Film> film, boost::shared_ptr<Content>);
void remove (boost::shared_ptr<Content>);
void remove (ContentList);
void move_earlier (boost::shared_ptr<const Film> film, boost::shared_ptr<Content>);
void move_later (boost::shared_ptr<const Film> film, boost::shared_ptr<Content>);
ContentList content () const;
std::string video_identifier () const;
dcpomatic::DCPTime length (boost::shared_ptr<const Film> film) const;
boost::optional<dcpomatic::DCPTime> start () const;
size_t required_disk_space (boost::shared_ptr<const Film> film, int j2k_bandwidth, int audio_channels, int audio_frame_rate) const;
int best_video_frame_rate () const;
dcpomatic::DCPTime video_end (boost::shared_ptr<const Film> film) const;
dcpomatic::DCPTime text_end (boost::shared_ptr<const Film> film) const;
FrameRateChange active_frame_rate_change (dcpomatic::DCPTime, int dcp_frame_rate) const;
std::string content_summary (boost::shared_ptr<const Film> film, dcpomatic::DCPTimePeriod period) const;
std::pair<double, double> speed_up_range (int dcp_video_frame_rate) const;
void set_sequence (bool);
void maybe_sequence (boost::shared_ptr<const Film> film);
void repeat (boost::shared_ptr<const Film> film, ContentList, int);
/** Emitted when content has been added to or removed from the playlist; implies OrderChanged */
mutable boost::signals2::signal<void (ChangeType)> Change;
mutable boost::signals2::signal<void ()> OrderChange;
/** Emitted when the length might have changed; may sometimes be emitted when it has not */
mutable boost::signals2::signal<void ()> LengthChange;
mutable boost::signals2::signal<void (ChangeType, boost::weak_ptr<Content>, int, bool)> ContentChange;
private:
void content_change (boost::weak_ptr<const Film>, ChangeType, boost::weak_ptr<Content>, int, bool);
void disconnect ();
void reconnect (boost::shared_ptr<const Film> film);
mutable boost::mutex _mutex;
/** List of content. Kept sorted in position order. */
ContentList _content;
bool _sequence;
bool _sequencing;
std::list<boost::signals2::connection> _content_connections;
};
#endif
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