diff options
| -rw-r--r-- | libavcodec/ac3.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/libavcodec/ac3.h b/libavcodec/ac3.h index ff36249045..747f2f561d 100644 --- a/libavcodec/ac3.h +++ b/libavcodec/ac3.h @@ -97,13 +97,13 @@ typedef float SHORTFLOAT; #endif /* USE_FIXED */ -#define AC3_LEVEL(x) ROUND15((x) * FIXR15(0.7071067811865476)) +#define AC3_LEVEL(x) ROUND15((x) * FIXR15(M_SQRT1_2)) /* pre-defined gain values */ -#define LEVEL_PLUS_3DB 1.4142135623730950 +#define LEVEL_PLUS_3DB M_SQRT2 #define LEVEL_PLUS_1POINT5DB 1.1892071150027209 #define LEVEL_MINUS_1POINT5DB 0.8408964152537145 -#define LEVEL_MINUS_3DB 0.7071067811865476 +#define LEVEL_MINUS_3DB M_SQRT1_2 #define LEVEL_MINUS_4POINT5DB 0.5946035575013605 #define LEVEL_MINUS_6DB 0.5000000000000000 #define LEVEL_MINUS_9DB 0.3535533905932738 |