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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.
*/
#include <string>
#include <boost/shared_ptr.hpp>
#include "video_content.h"
#include "audio_content.h"
class NullContent : public VideoContent, public AudioContent
{
public:
NullContent (boost::shared_ptr<const Film>, Time, Time);
std::string summary () const {
return "";
}
std::string information () const {
return "";
}
void as_xml (xmlpp::Node *) const {}
boost::shared_ptr<Content> clone () const {
return boost::shared_ptr<Content> ();
}
int audio_channels () const;
ContentAudioFrame audio_length () const {
return _audio_length;
}
int content_audio_frame_rate () const;
int output_audio_frame_rate () const;
AudioMapping audio_mapping () const {
return AudioMapping ();
}
void set_audio_mapping (AudioMapping) {}
Time length () const {
return _length;
}
private:
ContentAudioFrame _audio_length;
Time _length;
};
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