mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
55 lines
1.5 KiB
55 lines
1.5 KiB
/* |
|
* This file is part of FFmpeg. |
|
* |
|
* FFmpeg 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 2.1 of the License, or (at your option) any later version. |
|
* |
|
* FFmpeg 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 FFmpeg; if not, write to the Free Software |
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
|
*/ |
|
|
|
/** |
|
* @file |
|
* Compatibility libm for table generation files |
|
*/ |
|
|
|
#ifndef AVUTIL_TABLEGEN_H |
|
#define AVUTIL_TABLEGEN_H |
|
|
|
#include <math.h> |
|
|
|
// we lack some functions on all host platforms, and we don't care about |
|
// performance and/or strict ISO C semantics as it's performed at build time |
|
static inline double ff_cbrt(double x) |
|
{ |
|
return x < 0 ? -pow(-x, 1.0 / 3.0) : pow(x, 1.0 / 3.0); |
|
} |
|
#define cbrt ff_cbrt |
|
|
|
static inline double ff_rint(double x) |
|
{ |
|
return x >= 0 ? floor(x + 0.5) : ceil(x - 0.5); |
|
} |
|
#define rint ff_rint |
|
|
|
static inline long long ff_llrint(double x) |
|
{ |
|
return rint(x); |
|
} |
|
#define llrint ff_llrint |
|
|
|
static inline long ff_lrint(double x) |
|
{ |
|
return rint(x); |
|
} |
|
#define lrint ff_lrint |
|
|
|
#endif /* AVUTIL_TABLEGEN_H */
|
|
|