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/*
Copyright (C) 2013 Carl Hetherington <cth@carlh.net>
This program 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.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef DCPOMATIC_PLAYLIST_H
#define DCPOMATIC_PLAYLIST_H
#include <list>
#include <boost/shared_ptr.hpp>
#include <boost/enable_shared_from_this.hpp>
#include "ffmpeg_content.h"
#include "audio_mapping.h"
class Content;
class FFmpegContent;
class FFmpegDecoder;
class ImageMagickContent;
class ImageMagickDecoder;
class SndfileContent;
class SndfileDecoder;
class Job;
class Film;
class Region;
/** @class Playlist
* @brief A set of content files (video and audio), with knowledge of how they should be arranged into
* a DCP.
*
* This class holds Content objects, and it knows how they should be arranged. At the moment
* the ordering is implicit; video content is placed sequentially, and audio content is taken
* from the video unless any sound-only files are present. If sound-only files exist, they
* are played simultaneously (i.e. they can be split up into multiple files for different channels)
*/
struct ContentSorter
{
bool operator() (boost::shared_ptr<Content> a, boost::shared_ptr<Content> b);
};
class Playlist
{
public:
Playlist ();
Playlist (boost::shared_ptr<const Playlist>);
~Playlist ();
void as_xml (xmlpp::Node *);
void set_from_xml (boost::shared_ptr<const Film>, boost::shared_ptr<const cxml::Node>);
void add (boost::shared_ptr<Content>);
void remove (boost::shared_ptr<Content>);
bool has_subtitles () const;
typedef std::vector<boost::shared_ptr<Content> > ContentList;
ContentList content () const {
return _content;
}
std::string video_digest () const;
int loop () const {
return _loop;
}
void set_loop (int l);
Time length () const;
int best_dcp_frame_rate () const;
Time video_end () const;
void set_sequence_video (bool);
mutable boost::signals2::signal<void ()> Changed;
mutable boost::signals2::signal<void (boost::weak_ptr<Content>, int)> ContentChanged;
private:
void content_changed (boost::weak_ptr<Content>, int);
void reconnect ();
ContentList _content;
int _loop;
bool _sequence_video;
bool _sequencing_video;
std::list<boost::signals2::connection> _content_connections;
};
#endif
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