diff options
| -rw-r--r-- | ffmpeg.c | 1 | ||||
| -rw-r--r-- | libavutil/internal.h | 60 | ||||
| -rw-r--r-- | libavutil/libm.h | 90 |
3 files changed, 92 insertions, 59 deletions
@@ -40,6 +40,7 @@ #include "libavutil/fifo.h" #include "libavutil/pixdesc.h" #include "libavutil/avstring.h" +#include "libavutil/libm.h" #include "libavformat/os_support.h" #if HAVE_SYS_RESOURCE_H diff --git a/libavutil/internal.h b/libavutil/internal.h index a9c2ff5e7e..eac7bd3012 100644 --- a/libavutil/internal.h +++ b/libavutil/internal.h @@ -192,65 +192,7 @@ }\ } -#if !HAVE_EXP2 -#undef exp2 -#define exp2(x) exp((x) * 0.693147180559945) -#endif /* HAVE_EXP2 */ - -#if !HAVE_EXP2F -#undef exp2f -#define exp2f(x) ((float)exp2(x)) -#endif /* HAVE_EXP2F */ - -#if !HAVE_LLRINT -#undef llrint -#define llrint(x) ((long long)rint(x)) -#endif /* HAVE_LLRINT */ - -#if !HAVE_LOG2 -#undef log2 -#define log2(x) (log(x) * 1.44269504088896340736) -#endif /* HAVE_LOG2 */ - -#if !HAVE_LOG2F -#undef log2f -#define log2f(x) ((float)log2(x)) -#endif /* HAVE_LOG2F */ - -#if !HAVE_LRINT -static av_always_inline av_const long int lrint(double x) -{ - return rint(x); -} -#endif /* HAVE_LRINT */ - -#if !HAVE_LRINTF -static av_always_inline av_const long int lrintf(float x) -{ - return (int)(rint(x)); -} -#endif /* HAVE_LRINTF */ - -#if !HAVE_ROUND -static av_always_inline av_const double round(double x) -{ - return (x > 0) ? floor(x + 0.5) : ceil(x - 0.5); -} -#endif /* HAVE_ROUND */ - -#if !HAVE_ROUNDF -static av_always_inline av_const float roundf(float x) -{ - return (x > 0) ? floor(x + 0.5) : ceil(x - 0.5); -} -#endif /* HAVE_ROUNDF */ - -#if !HAVE_TRUNCF -static av_always_inline av_const float truncf(float x) -{ - return (x > 0) ? floor(x) : ceil(x); -} -#endif /* HAVE_TRUNCF */ +#include "libm.h" /** * Returns NULL if CONFIG_SMALL is true, otherwise the argument diff --git a/libavutil/libm.h b/libavutil/libm.h new file mode 100644 index 0000000000..c9d188b4d9 --- /dev/null +++ b/libavutil/libm.h @@ -0,0 +1,90 @@ +/* + * 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 libavutil/libm.h + * Replacements for frequently missing libm functions + */ + +#ifndef AVUTIL_LIBM_H +#define AVUTIL_LIBM_H + +#include <math.h> +#include "config.h" + +#if !HAVE_EXP2 +#undef exp2 +#define exp2(x) exp((x) * 0.693147180559945) +#endif /* HAVE_EXP2 */ + +#if !HAVE_EXP2F +#undef exp2f +#define exp2f(x) ((float)exp2(x)) +#endif /* HAVE_EXP2F */ + +#if !HAVE_LLRINT +#undef llrint +#define llrint(x) ((long long)rint(x)) +#endif /* HAVE_LLRINT */ + +#if !HAVE_LOG2 +#undef log2 +#define log2(x) (log(x) * 1.44269504088896340736) +#endif /* HAVE_LOG2 */ + +#if !HAVE_LOG2F +#undef log2f +#define log2f(x) ((float)log2(x)) +#endif /* HAVE_LOG2F */ + +#if !HAVE_LRINT +static av_always_inline av_const long int lrint(double x) +{ + return rint(x); +} +#endif /* HAVE_LRINT */ + +#if !HAVE_LRINTF +static av_always_inline av_const long int lrintf(float x) +{ + return (int)(rint(x)); +} +#endif /* HAVE_LRINTF */ + +#if !HAVE_ROUND +static av_always_inline av_const double round(double x) +{ + return (x > 0) ? floor(x + 0.5) : ceil(x - 0.5); +} +#endif /* HAVE_ROUND */ + +#if !HAVE_ROUNDF +static av_always_inline av_const float roundf(float x) +{ + return (x > 0) ? floor(x + 0.5) : ceil(x - 0.5); +} +#endif /* HAVE_ROUNDF */ + +#if !HAVE_TRUNCF +static av_always_inline av_const float truncf(float x) +{ + return (x > 0) ? floor(x) : ceil(x); +} +#endif /* HAVE_TRUNCF */ + +#endif /* AVUTIL_LIBM_H */ |