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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 "video_source.h"
#include "audio_source.h"
#include "video_sink.h"
#include "audio_sink.h"
#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 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)
*/
class Playlist
{
public:
Playlist ();
Playlist (boost::shared_ptr<const Playlist>);
void as_xml (xmlpp::Node *);
void set_from_xml (boost::shared_ptr<const cxml::Node>);
void add (boost::shared_ptr<Content>);
void remove (boost::shared_ptr<Content>);
bool has_subtitles () const;
struct Region
{
Region ()
: time (0)
{}
Region (boost::shared_ptr<Content> c, Time t, Playlist* p);
Region (boost::shared_ptr<const cxml::Node>, Playlist* p);
void as_xml (xmlpp::Node *) const;
boost::shared_ptr<Content> content;
Time time;
boost::signals2::connection connection;
};
typedef std::vector<Region> RegionList;
RegionList regions () const {
return _regions;
}
std::string audio_digest () const;
std::string video_digest () const;
int loop () const {
return _loop;
}
void set_loop (int l);
Time length (boost::shared_ptr<const Film>) const;
int best_dcp_frame_rate () const;
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);
RegionList _regions;
int _loop;
};
#endif
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