diff options
Diffstat (limited to 'libavutil/mathematics.h')
| -rw-r--r-- | libavutil/mathematics.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavutil/mathematics.h b/libavutil/mathematics.h index a8b1d8eb31..88739e80b8 100644 --- a/libavutil/mathematics.h +++ b/libavutil/mathematics.h @@ -45,6 +45,9 @@ #ifndef M_PI #define M_PI 3.14159265358979323846 /* pi */ #endif +#ifndef M_PI_2 +#define M_PI_2 1.57079632679489661923 /* pi/2 */ +#endif #ifndef M_SQRT1_2 #define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */ #endif |