2 Copyright (C) 2013-2016 Carl Hetherington <cth@carlh.net>
4 This file is part of DCP-o-matic.
6 DCP-o-matic is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 DCP-o-matic is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
21 /** @file src/lib/content_factory.cc
22 * @brief Methods to create content objects.
25 #include "ffmpeg_content.h"
26 #include "audio_content.h"
27 #include "image_content.h"
28 #include "atmos_mxf_content.h"
29 #include "text_subtitle_content.h"
30 #include "dcp_content.h"
31 #include "dcp_subtitle_content.h"
33 #include "ffmpeg_audio_stream.h"
34 #include "video_mxf_content.h"
36 #include "log_entry.h"
38 #include "compose.hpp"
39 #include <libcxml/cxml.h>
40 #include <dcp/smpte_subtitle_asset.h>
41 #include <boost/algorithm/string.hpp>
47 using boost::shared_ptr;
48 using boost::optional;
50 #define LOG_GENERAL(...) film->log()->log (String::compose (__VA_ARGS__), LogEntry::TYPE_GENERAL);
52 /** Create a Content object from an XML node.
53 * @param film Film that the content will be in.
54 * @param node XML description.
55 * @param version XML state version.
56 * @param notes A list to which is added descriptions of any non-critial warnings / messages.
57 * @return Content object, or 0 if no content was recognised in the XML.
60 content_factory (shared_ptr<const Film> film, cxml::NodePtr node, int version, list<string>& notes)
62 string const type = node->string_child ("Type");
64 boost::shared_ptr<Content> content;
66 if (type == "FFmpeg") {
67 /* SndfileContent is now handled by the FFmpeg code rather than by
68 separate libsndfile-based code.
70 content.reset (new FFmpegContent (film, node, version, notes));
71 } else if (type == "Image") {
72 content.reset (new ImageContent (film, node, version));
73 } else if (type == "Sndfile") {
74 /* SndfileContent is now handled by the FFmpeg code rather than by
75 separate libsndfile-based code.
77 content.reset (new FFmpegContent (film, node, version, notes));
79 content->audio->set_stream (
81 new FFmpegAudioStream (
83 node->number_child<int> ("AudioFrameRate"),
84 node->number_child<Frame> ("AudioLength"),
85 AudioMapping (node->node_child ("AudioMapping"), version)
90 } else if (type == "SubRip" || type == "TextSubtitle") {
91 content.reset (new TextSubtitleContent (film, node, version));
92 } else if (type == "DCP") {
93 content.reset (new DCPContent (film, node, version));
94 } else if (type == "DCPSubtitle") {
95 content.reset (new DCPSubtitleContent (film, node, version));
96 } else if (type == "VideoMXF") {
97 content.reset (new VideoMXFContent (film, node, version));
98 } else if (type == "AtmosMXF") {
99 content.reset (new AtmosMXFContent (film, node, version));
102 /* See if this content should be nudged to start on a video frame */
103 DCPTime const old_pos = content->position();
104 content->set_position(old_pos);
105 if (old_pos != content->position()) {
106 string note = _("Your project contains video content that was not aligned to a frame boundary.");
108 if (old_pos < content->position()) {
109 note += String::compose(
110 _("The file %1 has been moved %2 milliseconds later."),
111 content->path_summary(), DCPTime(content->position() - old_pos).seconds() * 1000
114 note += String::compose(
115 _("The file %1 has been moved %2 milliseconds earlier."),
116 content->path_summary(), DCPTime(content->position() - old_pos).seconds() * 1000
119 notes.push_back (note);
122 /* ...or have a start trim which is an integer number of frames */
123 ContentTime const old_trim = content->trim_start();
124 content->set_trim_start(old_trim);
125 if (old_trim != content->trim_start()) {
126 string note = _("Your project contains video content whose trim was not aligned to a frame boundary.");
128 if (old_trim < content->trim_start()) {
129 note += String::compose(
130 _("The file %1 has been trimmed by %2 milliseconds more."),
131 content->path_summary(), ContentTime(content->trim_start() - old_trim).seconds() * 1000
134 note += String::compose(
135 _("The file %1 has been trimmed by %2 milliseconds less."),
136 content->path_summary(), ContentTime(old_trim - content->trim_start()).seconds() * 1000
139 notes.push_back (note);
145 /** Create some Content objects from a file or directory.
146 * @param film Film that the content will be in.
147 * @param path File or directory.
148 * @return Content objects.
150 list<shared_ptr<Content> >
151 content_factory (shared_ptr<const Film> film, boost::filesystem::path path)
153 list<shared_ptr<Content> > content;
155 if (boost::filesystem::is_directory (path)) {
157 LOG_GENERAL ("Look in directory %1", path);
159 if (boost::filesystem::is_empty (path)) {
163 /* See if this is a set of images or a set of sound files */
168 for (boost::filesystem::directory_iterator i(path); i != boost::filesystem::directory_iterator() && read < 10; ++i) {
170 LOG_GENERAL ("Checking file %1", i->path());
172 if (boost::starts_with (i->path().leaf().string(), ".")) {
173 /* We ignore hidden files */
174 LOG_GENERAL ("Ignored %1 (starts with .)", i->path());
178 if (!boost::filesystem::is_regular_file(i->path())) {
179 /* Ignore things which aren't files (probably directories) */
180 LOG_GENERAL ("Ignored %1 (not a regular file)", i->path());
184 if (valid_image_file (i->path ())) {
188 if (valid_sound_file (i->path ())) {
195 if (image_files > 0 && sound_files == 0) {
196 content.push_back (shared_ptr<Content> (new ImageContent (film, path)));
197 } else if (image_files == 0 && sound_files > 0) {
198 for (boost::filesystem::directory_iterator i(path); i != boost::filesystem::directory_iterator(); ++i) {
199 content.push_back (shared_ptr<FFmpegContent> (new FFmpegContent (film, i->path())));
205 shared_ptr<Content> single;
207 string ext = path.extension().string ();
208 transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
210 if (valid_image_file (path)) {
211 single.reset (new ImageContent (film, path));
212 } else if (ext == ".srt" || ext == ".ssa" || ext == ".ass") {
213 single.reset (new TextSubtitleContent (film, path));
214 } else if (ext == ".xml") {
216 doc.read_file (path);
217 if (doc.root_name() == "DCinemaSecurityMessage") {
218 throw KDMAsContentError ();
220 single.reset (new DCPSubtitleContent (film, path));
221 } else if (ext == ".mxf" && dcp::SMPTESubtitleAsset::valid_mxf (path)) {
222 single.reset (new DCPSubtitleContent (film, path));
223 } else if (ext == ".mxf" && VideoMXFContent::valid_mxf (path)) {
224 single.reset (new VideoMXFContent (film, path));
225 } else if (ext == ".mxf" && AtmosMXFContent::valid_mxf (path)) {
226 single.reset (new AtmosMXFContent (film, path));
230 single.reset (new FFmpegContent (film, path));
233 content.push_back (single);