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/*
Copyright (C) 2013-2014 Carl Hetherington <cth@carlh.net>
This program 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.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/** @file src/lib/content_factory.cc
* @brief Methods to create content objects.
*/
#include "ffmpeg_content.h"
#include "image_content.h"
#include "sndfile_content.h"
#include "text_subtitle_content.h"
#include "dcp_content.h"
#include "dcp_subtitle_content.h"
#include "util.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>
using std::string;
using std::list;
using boost::shared_ptr;
#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::NodePtr node, int version, list<string>& notes)
{
string const type = node->string_child ("Type");
boost::shared_ptr<Content> content;
if (type == "FFmpeg") {
content.reset (new FFmpegContent (film, node, version, notes));
} else if (type == "Image") {
content.reset (new ImageContent (film, node, version));
} else if (type == "Sndfile") {
content.reset (new SndfileContent (film, node, version));
} else if (type == "SubRip" || type == "TextSubtitle") {
content.reset (new TextSubtitleContent (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));
}
return content;
}
/** Create a Content object from a file or directory.
* @param film Film that the content will be in.
* @param path File or directory.
* @return Content object.
*/
shared_ptr<Content>
content_factory (shared_ptr<const Film> film, boost::filesystem::path path)
{
shared_ptr<Content> content;
if (boost::filesystem::is_directory (path)) {
LOG_GENERAL ("Look in directory %1", path);
if (boost::filesystem::is_empty (path)) {
return shared_ptr<Content> ();
}
/* Guess if this is a DCP or a set of images: read the first ten filenames and if they
are all valid image files we assume it is a set of images.
*/
bool is_dcp = false;
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(), "._") || i->path().leaf().string() == ".DS_Store") {
/* We ignore these files */
LOG_GENERAL ("Ignored %1 (starts with {._}, or .DS_Store)", 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())) {
/* We have a normal file which isn't an image; assume we are looking
at a DCP.
*/
LOG_GENERAL ("It's a DCP because of %1", i->path());
is_dcp = true;
}
++read;
}
if (is_dcp) {
content.reset (new DCPContent (film, path));
} else {
content.reset (new ImageContent (film, path));
}
} else {
string ext = path.extension().string ();
transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
if (valid_image_file (path)) {
content.reset (new ImageContent (film, path));
} else if (SndfileContent::valid_file (path)) {
content.reset (new SndfileContent (film, path));
} else if (ext == ".srt" || ext == ".ssa") {
content.reset (new TextSubtitleContent (film, path));
} else if (ext == ".xml") {
content.reset (new DCPSubtitleContent (film, path));
} else if (ext == ".mxf" && dcp::SMPTESubtitleAsset::valid_mxf (path)) {
content.reset (new DCPSubtitleContent (film, path));
}
if (!content) {
content.reset (new FFmpegContent (film, path));
}
}
return content;
}
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