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Code Issues Releases Activity

avfilter/vf_idet: use exp2()

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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Michael Niedermayer 2014-11-03 17:22:33 +01:00
parent 4bbd8f05f7
commit 898635ad9e
1 changed files with 1 additions and 1 deletions
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2
libavfilter/vf_idet.c
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@ -324,7 +324,7 @@ static av_cold int init(AVFilterContext *ctx)
memset(idet->history, UNDETERMINED, HIST_SIZE);
if( idet->half_life > 0 )
idet->decay_coefficient = (uint64_t) round( PRECISION * pow(2.0,-1.0 / idet->half_life) );
idet->decay_coefficient = (uint64_t) round( PRECISION * exp2(-1.0 / idet->half_life) );
else
idet->decay_coefficient = PRECISION;