From 62b9fc1571b1354cf596a280b5fe55a9593a7a2f Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Thu, 30 Nov 2006 11:43:08 +0000 Subject: [PATCH] fix overflow and remove wrong comment Originally committed as revision 7187 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavutil/rational.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/libavutil/rational.c b/libavutil/rational.c index 9fcf621..0e018c4 100644 --- a/libavutil/rational.c +++ b/libavutil/rational.c @@ -46,7 +46,7 @@ int av_reduce(int *dst_nom, int *dst_den, int64_t nom, int64_t den, int64_t max) } while(den){ - int64_t x = nom / den; + uint64_t x = nom / den; int64_t next_den= nom - den*x; int64_t a2n= x*a1.num + a0.num; int64_t a2d= x*a1.den + a0.den; @@ -55,7 +55,6 @@ int av_reduce(int *dst_nom, int *dst_den, int64_t nom, int64_t den, int64_t max) if(a1.num) x= (max - a0.num) / a1.num; if(a1.den) x= FFMIN(x, (max - a0.den) / a1.den); - // Won't overflow, sum == original denominator if (den*(2*x*a1.den + a0.den) > nom*a1.den) a1 = (AVRational){x*a1.num + a0.num, x*a1.den + a0.den}; break; -- 2.7.4