From 898635ad9ec9cadc3c45b61fba97a471f2be7d27 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Mon, 3 Nov 2014 17:22:33 +0100 Subject: [PATCH] avfilter/vf_idet: use exp2() Signed-off-by: Michael Niedermayer --- libavfilter/vf_idet.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavfilter/vf_idet.c b/libavfilter/vf_idet.c index a059565a0a..40b2616068 100644 --- a/libavfilter/vf_idet.c +++ b/libavfilter/vf_idet.c @@ -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;