avutil/softfloat: Fix av_gt_sf() with large exponents try #2

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

libavutil/softfloat.h

@@ -128,10 +128,10 @@ static inline av_const int av_cmp_sf(SoftFloat a, SoftFloat b){
 static inline av_const int av_gt_sf(SoftFloat a, SoftFloat b)
 {
     int t= a.exp - b.exp;
-    if      (t <-31) return 0;
+    if      (t <-31) return 0                >  b.mant      ;
     else if (t <  0) return (a.mant >> (-t)) >  b.mant      ;
     else if (t < 32) return  a.mant          > (b.mant >> t);
-    else             return 1;
+    else             return  a.mant          >  0           ;
 }
 
 static inline av_const SoftFloat av_add_sf(SoftFloat a, SoftFloat b){