2 Copyright (C) 2013-2016 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 "audio_content.h"
26 #include "image_content.h"
27 #include "text_subtitle_content.h"
28 #include "dcp_content.h"
29 #include "dcp_subtitle_content.h"
31 #include "ffmpeg_audio_stream.h"
32 #include "video_mxf_content.h"
34 #include "log_entry.h"
36 #include "compose.hpp"
37 #include <libcxml/cxml.h>
38 #include <dcp/smpte_subtitle_asset.h>
39 #include <boost/algorithm/string.hpp>
43 using boost::shared_ptr;
45 #define LOG_GENERAL(...) film->log()->log (String::compose (__VA_ARGS__), LogEntry::TYPE_GENERAL);
47 /** Create a Content object from an XML node.
48 * @param film Film that the content will be in.
49 * @param node XML description.
50 * @param version XML state version.
51 * @param notes A list to which is added descriptions of any non-critial warnings / messages.
52 * @return Content object, or 0 if no content was recognised in the XML.
55 content_factory (shared_ptr<const Film> film, cxml::NodePtr node, int version, list<string>& notes)
57 string const type = node->string_child ("Type");
59 boost::shared_ptr<Content> content;
61 if (type == "FFmpeg") {
62 /* SndfileContent is now handled by the FFmpeg code rather than by
63 separate libsndfile-based code.
65 content.reset (new FFmpegContent (film, node, version, notes));
66 } else if (type == "Image") {
67 content.reset (new ImageContent (film, node, version));
68 } else if (type == "Sndfile") {
69 /* SndfileContent is now handled by the FFmpeg code rather than by
70 separate libsndfile-based code.
72 content.reset (new FFmpegContent (film, node, version, notes));
74 content->audio->set_stream (
76 new FFmpegAudioStream (
78 node->number_child<int> ("AudioFrameRate"),
79 node->number_child<Frame> ("AudioLength"),
80 AudioMapping (node->node_child ("AudioMapping"), version)
85 } else if (type == "SubRip" || type == "TextSubtitle") {
86 content.reset (new TextSubtitleContent (film, node, version));
87 } else if (type == "DCP") {
88 content.reset (new DCPContent (film, node, version));
89 } else if (type == "DCPSubtitle") {
90 content.reset (new DCPSubtitleContent (film, node, version));
91 } else if (type == "VideoMXF") {
92 content.reset (new VideoMXFContent (film, node, version));
98 /** Create a Content object from a file or directory.
99 * @param film Film that the content will be in.
100 * @param path File or directory.
101 * @return Content object.
104 content_factory (shared_ptr<const Film> film, boost::filesystem::path path)
106 shared_ptr<Content> content;
108 if (boost::filesystem::is_directory (path)) {
110 LOG_GENERAL ("Look in directory %1", path);
112 if (boost::filesystem::is_empty (path)) {
113 return shared_ptr<Content> ();
116 /* Guess if this is a DCP or a set of images: read the first ten filenames and if they
117 are all valid image files we assume it is a set of images.
122 for (boost::filesystem::directory_iterator i(path); i != boost::filesystem::directory_iterator() && read < 10; ++i) {
124 LOG_GENERAL ("Checking file %1", i->path());
126 if (boost::starts_with (i->path().leaf().string(), "._") || i->path().leaf().string() == ".DS_Store") {
127 /* We ignore these files */
128 LOG_GENERAL ("Ignored %1 (starts with {._}, or .DS_Store)", i->path());
132 if (!boost::filesystem::is_regular_file(i->path())) {
133 /* Ignore things which aren't files (probably directories) */
134 LOG_GENERAL ("Ignored %1 (not a regular file)", i->path());
138 if (!valid_image_file (i->path())) {
139 /* We have a normal file which isn't an image; assume we are looking
142 LOG_GENERAL ("It's a DCP because of %1", i->path());
150 content.reset (new DCPContent (film, path));
152 content.reset (new ImageContent (film, path));
157 string ext = path.extension().string ();
158 transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
160 if (valid_image_file (path)) {
161 content.reset (new ImageContent (film, path));
162 } else if (ext == ".srt" || ext == ".ssa") {
163 content.reset (new TextSubtitleContent (film, path));
164 } else if (ext == ".xml") {
165 content.reset (new DCPSubtitleContent (film, path));
166 } else if (ext == ".mxf" && dcp::SMPTESubtitleAsset::valid_mxf (path)) {
167 content.reset (new DCPSubtitleContent (film, path));
168 } else if (ext == ".mxf" && VideoMXFContent::valid_mxf (path)) {
169 content.reset (new VideoMXFContent (film, path));
173 content.reset (new FFmpegContent (film, path));