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