Fixes picking time base when all input time bases are same and for example
20833/500000.

Signed-off-by: Paul B Mahol <one...@gmail.com>
---
 libavfilter/framesync.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavfilter/framesync.c b/libavfilter/framesync.c
index bc95f7d904..94abb469e6 100644
--- a/libavfilter/framesync.c
+++ b/libavfilter/framesync.c
@@ -144,7 +144,7 @@ int ff_framesync_configure(FFFrameSync *fs)
                 if (fs->time_base.num) {
                     gcd = av_gcd(fs->time_base.den, fs->in[i].time_base.den);
                     lcm = (fs->time_base.den / gcd) * fs->in[i].time_base.den;
-                    if (lcm < AV_TIME_BASE / 2) {
+                    if (lcm <= AV_TIME_BASE / 2) {
                         fs->time_base.den = lcm;
                         fs->time_base.num = av_gcd(fs->time_base.num,
                                                    fs->in[i].time_base.num);
-- 
2.17.1

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