libavutil/softfloat: Fix av_normalize1_sf bias.

av_normalize1_sf doesn't properly address border case when mantis is
exactly -0x40000000.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 7131aba916)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Nedeljko Babic 2015-06-03 16:17:39 +02:00 committed by Michael Niedermayer
parent ed5bfeca04
commit c8377cc49b

View File

@ -59,7 +59,7 @@ static av_const SoftFloat av_normalize_sf(SoftFloat a){
static inline av_const SoftFloat av_normalize1_sf(SoftFloat a){
#if 1
if((int32_t)(a.mant + 0x40000000U) < 0){
if((int32_t)(a.mant + 0x40000000U) <= 0){
a.exp++;
a.mant>>=1;
}