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/*
Copyright (C) 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.
*/
#include "reader_factory.h"
#include "stl_binary_reader.h"
#include "stl_text_reader.h"
#include "subrip_reader.h"
#include "sub_assert.h"
#include <boost/algorithm/string.hpp>
#include <fstream>
using std::string;
using std::ifstream;
using boost::algorithm::ends_with;
using std::shared_ptr;
using namespace sub;
shared_ptr<Reader>
sub::reader_factory (boost::filesystem::path file_name)
{
string ext = file_name.extension().string();
transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
if (ext == ".stl") {
/* Check the start of the DFC */
ifstream f (file_name.string().c_str ());
char buffer[11];
f.read (buffer, 11);
f.seekg (0);
if (f.gcount() == 11 && buffer[3] == 'S' && buffer[4] == 'T' && buffer[5] == 'L') {
return shared_ptr<Reader> (new STLBinaryReader (f));
} else {
return shared_ptr<Reader> (new STLTextReader (f));
}
}
if (ext == ".srt") {
FILE* f = fopen (file_name.string().c_str(), "r");
SUB_ASSERT (f);
shared_ptr<Reader> r (new SubripReader(f));
fclose (f);
return r;
}
return shared_ptr<Reader> ();
}
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