2 Copyright (C) 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 #include "reader_factory.h"
21 #include "interop_dcp_reader.h"
22 #include "smpte_dcp_reader.h"
23 #include "stl_binary_reader.h"
24 #include "stl_text_reader.h"
25 #include <libxml++/libxml++.h>
26 #include <boost/algorithm/string.hpp>
31 using boost::algorithm::ends_with;
32 using boost::shared_ptr;
36 sub::reader_factory (boost::filesystem::path file_name)
38 string ext = file_name.extension().string();
39 transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
42 /* XXX: unfortunate API weakness in libcxml; we can't find out what a
43 file's root node name is.
45 xmlpp::DomParser parser (file_name.string ());
46 string const root = parser.get_document()->get_root_node()->get_name();
47 if (root == "DCSubtitle") {
48 return shared_ptr<Reader> (new InteropDCPReader (file_name));
49 } else if (root == "SubtitleReel") {
50 return shared_ptr<Reader> (new SMPTEDCPReader (file_name, false));
55 /* Assume this is some MXF-wrapped SMPTE subtitles */
56 return shared_ptr<Reader> (new SMPTEDCPReader (file_name, true));
60 /* Check the start of the DFC */
61 ifstream f (file_name.string().c_str ());
65 if (f.gcount() == 11 && buffer[3] == 'S' && buffer[4] == 'T' && buffer[5] == 'L') {
66 return shared_ptr<Reader> (new STLBinaryReader (f));
68 return shared_ptr<Reader> (new STLTextReader (f));
72 return shared_ptr<Reader> ();