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/*
Copyright (C) 2013-2016 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
DCP-o-matic is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
DCP-o-matic is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file src/lib/content_factory.cc
* @brief Methods to create content objects.
*/
#include "ffmpeg_content.h"
#include "audio_content.h"
#include "image_content.h"
#include "atmos_mxf_content.h"
#include "string_text_file_content.h"
#include "dcp_content.h"
#include "dcp_subtitle_content.h"
#include "util.h"
#include "ffmpeg_audio_stream.h"
#include "video_mxf_content.h"
#include "film.h"
#include "log_entry.h"
#include "log.h"
#include "compose.hpp"
#include <libcxml/cxml.h>
#include <dcp/smpte_subtitle_asset.h>
#include <boost/algorithm/string.hpp>
#include "i18n.h"
using std::string;
using std::list;
using boost::shared_ptr;
using boost::optional;
#define LOG_GENERAL(...) film->log()->log (String::compose (__VA_ARGS__), LogEntry::TYPE_GENERAL);
/** Create a Content object from an XML node.
* @param film Film that the content will be in.
* @param node XML description.
* @param version XML state version.
* @param notes A list to which is added descriptions of any non-critial warnings / messages.
* @return Content object, or 0 if no content was recognised in the XML.
*/
shared_ptr<Content>
content_factory (shared_ptr<const Film> film, cxml::ConstNodePtr node, int version, list<string>& notes)
{
string const type = node->string_child ("Type");
boost::shared_ptr<Content> content;
if (type == "FFmpeg") {
/* SndfileContent is now handled by the FFmpeg code rather than by
separate libsndfile-based code.
*/
content.reset (new FFmpegContent (film, node, version, notes));
} else if (type == "Image") {
content.reset (new ImageContent (film, node, version));
} else if (type == "Sndfile") {
/* SndfileContent is now handled by the FFmpeg code rather than by
separate libsndfile-based code.
*/
content.reset (new FFmpegContent (film, node, version, notes));
content->audio->set_stream (
AudioStreamPtr (
new FFmpegAudioStream (
"Stream", 0,
node->number_child<int> ("AudioFrameRate"),
node->number_child<Frame> ("AudioLength"),
AudioMapping (node->node_child ("AudioMapping"), version)
)
)
);
} else if (type == "SubRip" || type == "TextSubtitle") {
content.reset (new StringTextFileContent (film, node, version));
} else if (type == "DCP") {
content.reset (new DCPContent (film, node, version));
} else if (type == "DCPSubtitle") {
content.reset (new DCPSubtitleContent (film, node, version));
} else if (type == "VideoMXF") {
content.reset (new VideoMXFContent (film, node, version));
} else if (type == "AtmosMXF") {
content.reset (new AtmosMXFContent (film, node, version));
}
/* See if this content should be nudged to start on a video frame */
DCPTime const old_pos = content->position();
content->set_position(old_pos);
if (old_pos != content->position()) {
string note = _("Your project contains video content that was not aligned to a frame boundary.");
note += " ";
if (old_pos < content->position()) {
note += String::compose(
_("The file %1 has been moved %2 milliseconds later."),
content->path_summary(), DCPTime(content->position() - old_pos).seconds() * 1000
);
} else {
note += String::compose(
_("The file %1 has been moved %2 milliseconds earlier."),
content->path_summary(), DCPTime(content->position() - old_pos).seconds() * 1000
);
}
notes.push_back (note);
}
/* ...or have a start trim which is an integer number of frames */
ContentTime const old_trim = content->trim_start();
content->set_trim_start(old_trim);
if (old_trim != content->trim_start()) {
string note = _("Your project contains video content whose trim was not aligned to a frame boundary.");
note += " ";
if (old_trim < content->trim_start()) {
note += String::compose(
_("The file %1 has been trimmed by %2 milliseconds more."),
content->path_summary(), ContentTime(content->trim_start() - old_trim).seconds() * 1000
);
} else {
note += String::compose(
_("The file %1 has been trimmed by %2 milliseconds less."),
content->path_summary(), ContentTime(old_trim - content->trim_start()).seconds() * 1000
);
}
notes.push_back (note);
}
return content;
}
/** Create some Content objects from a file or directory.
* @param film Film that the content will be in.
* @param path File or directory.
* @return Content objects.
*/
list<shared_ptr<Content> >
content_factory (shared_ptr<const Film> film, boost::filesystem::path path)
{
list<shared_ptr<Content> > content;
if (boost::filesystem::is_directory (path)) {
LOG_GENERAL ("Look in directory %1", path);
if (boost::filesystem::is_empty (path)) {
return content;
}
/* See if this is a set of images or a set of sound files */
int image_files = 0;
int sound_files = 0;
int read = 0;
for (boost::filesystem::directory_iterator i(path); i != boost::filesystem::directory_iterator() && read < 10; ++i) {
LOG_GENERAL ("Checking file %1", i->path());
if (boost::starts_with (i->path().leaf().string(), ".")) {
/* We ignore hidden files */
LOG_GENERAL ("Ignored %1 (starts with .)", i->path());
continue;
}
if (!boost::filesystem::is_regular_file(i->path())) {
/* Ignore things which aren't files (probably directories) */
LOG_GENERAL ("Ignored %1 (not a regular file)", i->path());
continue;
}
if (valid_image_file (i->path ())) {
++image_files;
}
if (valid_sound_file (i->path ())) {
++sound_files;
}
++read;
}
if (image_files > 0 && sound_files == 0) {
content.push_back (shared_ptr<Content> (new ImageContent (film, path)));
} else if (image_files == 0 && sound_files > 0) {
for (boost::filesystem::directory_iterator i(path); i != boost::filesystem::directory_iterator(); ++i) {
content.push_back (shared_ptr<FFmpegContent> (new FFmpegContent (film, i->path())));
}
}
} else {
shared_ptr<Content> single;
string ext = path.extension().string ();
transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
if (valid_image_file (path)) {
single.reset (new ImageContent (film, path));
} else if (ext == ".srt" || ext == ".ssa" || ext == ".ass") {
single.reset (new StringTextFileContent (film, path));
} else if (ext == ".xml") {
cxml::Document doc;
doc.read_file (path);
if (doc.root_name() == "DCinemaSecurityMessage") {
throw KDMAsContentError ();
}
single.reset (new DCPSubtitleContent (film, path));
} else if (ext == ".mxf" && dcp::SMPTESubtitleAsset::valid_mxf (path)) {
single.reset (new DCPSubtitleContent (film, path));
} else if (ext == ".mxf" && VideoMXFContent::valid_mxf (path)) {
single.reset (new VideoMXFContent (film, path));
} else if (ext == ".mxf" && AtmosMXFContent::valid_mxf (path)) {
single.reset (new AtmosMXFContent (film, path));
}
if (!single) {
single.reset (new FFmpegContent (film, path));
}
content.push_back (single);
}
return content;
}
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