2 Copyright (C) 2012 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 * @brief A class to create a DCP.
29 #include <boost/shared_ptr.hpp>
30 #include <sigc++/sigc++.h>
37 /** @brief Namespace for everything in libdcp */
46 /** @class DCP dcp.h libdcp/dcp.h
47 * @brief A class to create or read a DCP.
55 * This is for making a new DCP that you are going to add assets to.
57 * @param directory Directory to write files to.
59 * @param content_kind Content kind.
60 * @param fps Frames per second.
61 * @param length Length in frames.
63 DCP (std::string directory, std::string name, ContentKind content_kind, int fps, int length);
65 /** Construct a DCP object for an existing DCP.
67 * The DCP's XML metadata will be examined, and you can then look at the contents
70 * @param directory Existing DCP's directory.
72 DCP (std::string directory);
74 /** Add a sound asset.
75 * @param files Pathnames of WAV files to use in the order Left, Right,
76 * Centre, Lfe (sub), Left surround, Right surround; not all files need
79 void add_sound_asset (std::vector<std::string> const & files);
81 /** Add a sound asset.
82 * @param get_path Functor to get the path to the WAV for a given channel.
83 * @param channels Number of channels.
85 void add_sound_asset (sigc::slot<std::string, Channel> get_path, int channels);
87 /** Add a picture asset.
88 * @param files Pathnames of JPEG2000 files, in frame order.
89 * @param width Width of images in pixels.
90 * @param height Height of images in pixels.
92 void add_picture_asset (std::vector<std::string> const & files, int width, int height);
94 /** Add a picture asset.
95 * @param get_path Functor to get path to the JPEG2000 for a given frame.
96 * @param width Width of images in pixels.
97 * @param height Height of images in pixels.
99 void add_picture_asset (sigc::slot<std::string, int> get_path, int width, int height);
101 /** Write the required XML files to the directory that was
102 * passed into the constructor.
104 void write_xml () const;
106 /** @return the DCP's name, as will be presented on projector
107 * media servers and theatre management systems.
109 std::string name () const {
113 /** @return the type of the content, used by media servers
114 * to categorise things (e.g. feature, trailer, etc.)
116 ContentKind content_kind () const {
117 return _content_kind;
120 /** @return the number of frames per second */
121 int frames_per_second () const {
125 /** @return the length in frames */
126 int length () const {
130 /** @return the main picture asset, if one exists, otherwise 0 */
131 boost::shared_ptr<const PictureAsset> picture_asset () const;
132 /** @return the main sound asset, if one exists, otherwise 0 */
133 boost::shared_ptr<const SoundAsset> sound_asset () const;
134 /** @return the main subtitle asset, if one exists, otherwise 0 */
135 boost::shared_ptr<const SubtitleAsset> subtitle_asset () const;
137 /** Compare this DCP with another, according to various options.
138 * @param other DCP to compare this one to.
139 * @param options Options to define just what "equality" means.
140 * @return An empty list if the DCPs are equal; otherwise a list of messages
141 * which explain the ways in which they differ.
143 std::list<std::string> equals (DCP const & other, EqualityOptions options) const;
145 /** Emitted with a parameter between 0 and 1 to indicate progress
148 sigc::signal1<void, float> Progress;
152 /** Write the CPL file.
153 * @param cpl_uuid UUID to use.
154 * @return CPL pathname.
156 std::string write_cpl (std::string cpl_uuid) const;
158 /** Write the PKL file.
159 * @param pkl_uuid UUID to use.
160 * @param cpl_uuid UUID of the CPL file.
161 * @param cpl_digest SHA digest of the CPL file.
162 * @param cpl_length Length of the CPL file in bytes.
164 std::string write_pkl (std::string pkl_uuid, std::string cpl_uuid, std::string cpl_digest, int cpl_length) const;
166 /** Write the VOLINDEX file */
167 void write_volindex () const;
169 /** Write the ASSETMAP file.
170 * @param cpl_uuid UUID of our CPL.
171 * @param cpl_length Length of our CPL in bytes.
172 * @param pkl_uuid UUID of our PKL.
173 * @param pkl_length Length of our PKL in bytes.
175 void write_assetmap (std::string cpl_uuid, int cpl_length, std::string pkl_uuid, int pkl_length) const;
180 std::string asset_map;
181 std::list<std::string> subtitles;
184 void scan (Files& files, std::string directory) const;
186 /** the directory that we are writing to */
187 std::string _directory;
188 /** the name of the DCP */
190 /** the content kind of the DCP */
191 ContentKind _content_kind;
192 /** frames per second */
194 /** length in frames */
197 std::list<boost::shared_ptr<Asset> > _assets;