From: "Ronald S. Bultje" <[email protected]> Some compilers, MSVC among them, don't recognize the divisions by zero as meaning infinity/nan.
These macros should, according to the standard, expand to constant expressions, but this shouldn't matter for our usage. --- libavutil/mathematics.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/libavutil/mathematics.h b/libavutil/mathematics.h index a734b75..043dd0f 100644 --- a/libavutil/mathematics.h +++ b/libavutil/mathematics.h @@ -25,6 +25,7 @@ #include <math.h> #include "attributes.h" #include "rational.h" +#include "intfloat.h" #ifndef M_LOG2_10 #define M_LOG2_10 3.32192809488736234787 /* log_2 10 */ @@ -33,10 +34,10 @@ #define M_PHI 1.61803398874989484820 /* phi / golden ratio */ #endif #ifndef NAN -#define NAN (0.0/0.0) +#define NAN av_int2float(0x7fc00000) #endif #ifndef INFINITY -#define INFINITY (1.0/0.0) +#define INFINITY av_int2float(0x7f800000) #endif /** -- 1.7.9.4 _______________________________________________ libav-devel mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-devel
