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avutil/softfloat: use ldexp(), fixes undefined shift 

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-05-02 03:56:13 +02:00
parent c4be288fdb
commit 79aa2ff199
1 changed files with 1 additions and 2 deletions
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3
libavutil/softfloat.h
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@ -50,8 +50,7 @@ static const SoftFloat FLOAT_0999999 = { 0x3FFFFBCE, 0};
*/ */
static inline av_const double av_sf2double(SoftFloat v) { static inline av_const double av_sf2double(SoftFloat v) {
v.exp -= ONE_BITS +1; v.exp -= ONE_BITS +1;
if(v.exp > 0) return (double)v.mant * (double)(1 << v.exp); return ldexp(v.mant, v.exp);
else return (double)v.mant / (double)(1 << (-v.exp));
} }
static av_const SoftFloat av_normalize_sf(SoftFloat a){ static av_const SoftFloat av_normalize_sf(SoftFloat a){