[FFmpeg-devel] [PATCH 2/2] lavfi/framesync: use av_gcd_q().

Nicolas George george at nsup.org
Thu Apr 16 22:38:55 EEST 2020


Signed-off-by: Nicolas George <george at nsup.org>
---
 libavfilter/framesync.c | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/libavfilter/framesync.c b/libavfilter/framesync.c
index bc95f7d904..26e5219d1b 100644
--- a/libavfilter/framesync.c
+++ b/libavfilter/framesync.c
@@ -142,17 +142,8 @@ int ff_framesync_configure(FFFrameSync *fs)
         for (i = 0; i < fs->nb_in; i++) {
             if (fs->in[i].sync) {
                 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) {
-                        fs->time_base.den = lcm;
-                        fs->time_base.num = av_gcd(fs->time_base.num,
-                                                   fs->in[i].time_base.num);
-                    } else {
-                        fs->time_base.num = 1;
-                        fs->time_base.den = AV_TIME_BASE;
-                        break;
-                    }
+                    fs->time_base = av_gcd_q(fs->time_base, fs->in[i].time_base,
+                                             AV_TIME_BASE / 2, AV_TIME_BASE_Q);
                 } else {
                     fs->time_base = fs->in[i].time_base;
                 }
-- 
2.25.1



More information about the ffmpeg-devel mailing list