2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>
4 * This file is part of CasparCG (www.casparcg.com).
6 * CasparCG 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 3 of the License, or
9 * (at your option) any later version.
11 * CasparCG 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 CasparCG. If not, see <http://www.gnu.org/licenses/>.
19 * Author: Helge Norberg, helge.norberg@svt.se
24 #include <boost/chrono/system_clocks.hpp>
28 // Replacement of boost::timer because it uses std::clock which has very low resolution in linux.
31 boost::int_least64_t _start_time;
43 double elapsed() const
45 return static_cast<double>(now() - _start_time) / 1000.0;
48 static boost::int_least64_t now()
50 using namespace boost::chrono;
52 return duration_cast<milliseconds>(high_resolution_clock::now().time_since_epoch()).count();