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fix overflow and remove wrong comment 

Originally committed as revision 7187 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2006-11-30 11:43:08 +00:00
parent 3db1b8b538
commit 62b9fc1571
1 changed files with 1 additions and 2 deletions
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3
libavutil/rational.c
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@ -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;