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avutil/mathematics/av_add_stable: check for the common case of inc=1

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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Michael Niedermayer 2014-06-02 18:02:08 +02:00
parent 5b7519fbaa
commit 4956d0e5a6
1 changed files with 2 additions and 1 deletions
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libavutil/mathematics.c
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@ -188,6 +188,7 @@ simple_round:
int64_t av_add_stable(AVRational ts_tb, int64_t ts, AVRational inc_tb, int64_t inc) int64_t av_add_stable(AVRational ts_tb, int64_t ts, AVRational inc_tb, int64_t inc)
{ {
if (inc != 1)
inc_tb = av_mul_q(inc_tb, (AVRational) {inc, 1}); inc_tb = av_mul_q(inc_tb, (AVRational) {inc, 1});
if (av_cmp_q(inc_tb, ts_tb) < 0) { if (av_cmp_q(inc_tb, ts_tb) < 0) {