2 Copyright (C) 2013-2014 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/lib/content_factory.cc
21 * @brief Methods to create content objects.
24 #include "ffmpeg_content.h"
25 #include "image_content.h"
26 #include "sndfile_content.h"
27 #include "subrip_content.h"
28 #include "dcp_content.h"
29 #include "dcp_subtitle_content.h"
31 #include <libcxml/cxml.h>
32 #include <dcp/smpte_subtitle_asset.h>
36 using boost::shared_ptr;
38 /** Create a Content object from an XML node.
39 * @param film Film that the content will be in.
40 * @param node XML description.
41 * @param version XML state version.
42 * @param notes A list to which is added descriptions of any non-critial warnings / messages.
43 * @return Content object, or 0 if no content was recognised in the XML.
46 content_factory (shared_ptr<const Film> film, cxml::NodePtr node, int version, list<string>& notes)
48 string const type = node->string_child ("Type");
50 boost::shared_ptr<Content> content;
52 if (type == "FFmpeg") {
53 content.reset (new FFmpegContent (film, node, version, notes));
54 } else if (type == "Image") {
55 content.reset (new ImageContent (film, node, version));
56 } else if (type == "Sndfile") {
57 content.reset (new SndfileContent (film, node, version));
58 } else if (type == "SubRip") {
59 content.reset (new SubRipContent (film, node, version));
60 } else if (type == "DCP") {
61 content.reset (new DCPContent (film, node, version));
62 } else if (type == "DCPSubtitle") {
63 content.reset (new DCPSubtitleContent (film, node, version));
69 /** Create a Content object from a file or directory.
70 * @param film Film that the content will be in.
71 * @param path File or directory.
72 * @return Content object.
75 content_factory (shared_ptr<const Film> film, boost::filesystem::path path)
77 shared_ptr<Content> content;
79 if (boost::filesystem::is_directory (path)) {
81 if (boost::filesystem::is_empty (path)) {
82 return shared_ptr<Content> ();
85 /* Guess if this is a DCP or a set of images: read the first ten filenames and if they
86 are all valid image files we assume it is a set of images.
91 for (boost::filesystem::directory_iterator i(path); i != boost::filesystem::directory_iterator() && read < 10; ++i, ++read) {
92 if (!boost::filesystem::is_regular_file (i->path()) || !valid_image_file (i->path())) {
98 content.reset (new DCPContent (film, path));
100 content.reset (new ImageContent (film, path));
105 string ext = path.extension().string ();
106 transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
108 if (valid_image_file (path)) {
109 content.reset (new ImageContent (film, path));
110 } else if (SndfileContent::valid_file (path)) {
111 content.reset (new SndfileContent (film, path));
112 } else if (ext == ".srt") {
113 content.reset (new SubRipContent (film, path));
114 } else if (ext == ".xml") {
115 content.reset (new DCPSubtitleContent (film, path));
116 } else if (ext == ".mxf" && dcp::SMPTESubtitleAsset::valid_mxf (path)) {
117 content.reset (new DCPSubtitleContent (film, path));
121 content.reset (new FFmpegContent (film, path));