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Code Issues Releases Activity

avutil/softfloat: Fix undefined shift in av_add_sf()

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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Michael Niedermayer
2014-10-10 19:36:12 +02:00
parent 5e6fd132ff
commit 171d971dbf
1 changed files with 4 additions and 2 deletions
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6
libavutil/softfloat.h
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@@ -104,8 +104,10 @@ static inline av_const int av_cmp_sf(SoftFloat a, SoftFloat b){
static inline av_const SoftFloat av_add_sf(SoftFloat a, SoftFloat b){
int t= a.exp - b.exp;
if(t<0) return av_normalize1_sf((SoftFloat){b.exp, b.mant + (a.mant >> (-t))});
else return av_normalize1_sf((SoftFloat){a.exp, a.mant + (b.mant >> t )});
if (t <-31) return b;
else if (t < 0) return av_normalize1_sf((SoftFloat){b.exp, b.mant + (a.mant >> (-t))});
else if (t < 32) return av_normalize1_sf((SoftFloat){a.exp, a.mant + (b.mant >> t )});
else return a;
}
static inline av_const SoftFloat av_sub_sf(SoftFloat a, SoftFloat b){