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/**
* @file
* @brief Header file for OpenMPUtilities (set some common macros)
* @author Jonathan Thomas <jonathan@openshot.org>
*
* @section LICENSE
*
* Copyright (c) 2008-2014 OpenShot Studios, LLC
* <http://www.openshotstudios.com/>. This file is part of
* OpenShot Library (libopenshot), an open-source project dedicated to
* delivering high quality video editing and animation solutions to the
* world. For more information visit <http://www.openshot.org/>.
*
* OpenShot Library (libopenshot) is free software: you can redistribute it
* and/or modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* OpenShot Library (libopenshot) 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with OpenShot Library. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef OPENSHOT_OPENMP_UTILITIES_H
#define OPENSHOT_OPENMP_UTILITIES_H
#include <omp.h>
#include <stdlib.h>
#include <string.h>
// Calculate the # of OpenMP and FFmpeg Threads to allow. We are limiting both
// of these based on our own performance tests (more is not always better).
#define OPEN_MP_NUM_PROCESSORS (min(omp_get_num_procs(), 6))
#define FF_NUM_PROCESSORS (min(omp_get_num_procs(), 12))
using namespace std;
namespace openshot {
// Check if OS2_OMP_THREADS environment variable is present, and return
// if multiple threads should be used with OMP
static bool IsOMPEnabled() {
char* OS2_OMP_THREADS = getenv("OS2_OMP_THREADS");
if (OS2_OMP_THREADS != NULL && strcmp(OS2_OMP_THREADS, "0") == 0)
return false;
else
return true;
}
}
#endif
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