2 Copyright (C) 2013 Carl Hetherington <cth@carlh.net>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 #include <boost/shared_ptr.hpp>
24 class NullContent : public VideoContent, public AudioContent
27 NullContent (Time, Time, boost::shared_ptr<const Film>);
29 std::string summary () const {
33 std::string information () const {
37 void as_xml (xmlpp::Node *) const {}
39 boost::shared_ptr<Content> clone () const {
40 return boost::shared_ptr<Content> ();
43 int audio_channels () const {
44 return MAX_AUDIO_CHANNELS;
47 ContentAudioFrame audio_length () const {
51 int content_audio_frame_rate () const {
52 return _content_audio_frame_rate;
55 int output_audio_frame_rate (boost::shared_ptr<const Film> f) const {
56 return f->dcp_audio_frame_rate ();
59 AudioMapping audio_mapping () const {
60 return AudioMapping ();
63 Time length (boost::shared_ptr<const Film>) const {
68 ContentAudioFrame _audio_length;
69 ContentAudioFrame _content_audio_frame_rate;