2 Copyright (C) 2012-2014 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.
20 /** @file src/content.h
21 * @brief Content class.
24 #ifndef LIBDCP_CONTENT_H
25 #define LIBDCP_CONTENT_H
29 #include <libxml++/libxml++.h>
30 #include <boost/filesystem.hpp>
31 #include <boost/function.hpp>
47 * @brief An asset that represents a piece of content, i.e. picture, sound or subtitle.
49 * Such a piece of content will be contained in a file (either MXF or XML) within a DCP.
51 class Content : public Asset
54 /** Construct a Content object by reading a file.
55 * @param file File to read.
57 Content (boost::filesystem::path file);
59 /** Construct a new piece of content with a specified edit rate.
60 * @param edit_rate Edit rate for the content.
62 Content (Fraction edit_rate);
64 virtual ~Content () {}
67 boost::shared_ptr<const Content> other,
69 boost::function<void (NoteType, std::string)>
72 Fraction edit_rate () const {
76 /** @return The total length of this content in video frames.
77 * The amount of content presented may be less than this.
79 int64_t intrinsic_duration () const {
80 return _intrinsic_duration;
84 friend class MXFWriter;
86 virtual std::string asdcp_kind () const = 0;
89 /** The total length of this content in video frames. The amount of
90 * content presented may be less than this.
92 int64_t _intrinsic_duration;