[FFmpeg-cvslog] avfilter/vf_w3fdif: fix time base for large denominators

Paul B Mahol git at videolan.org
Fri Jul 16 10:11:32 EEST 2021


ffmpeg | branch: master | Paul B Mahol <onemda at gmail.com> | Fri Jul 16 09:01:47 2021 +0200| [c4e51af5e79db28b315ec2b3bfffe3f4b2bb7640] | committer: Paul B Mahol

avfilter/vf_w3fdif: fix time base for large denominators

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=c4e51af5e79db28b315ec2b3bfffe3f4b2bb7640
---

 libavfilter/vf_w3fdif.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/libavfilter/vf_w3fdif.c b/libavfilter/vf_w3fdif.c
index c13c17e3ed..5edb826f0a 100644
--- a/libavfilter/vf_w3fdif.c
+++ b/libavfilter/vf_w3fdif.c
@@ -334,10 +334,8 @@ static int config_output(AVFilterLink *outlink)
 {
     AVFilterLink *inlink = outlink->src->inputs[0];
 
-    outlink->time_base.num = inlink->time_base.num;
-    outlink->time_base.den = inlink->time_base.den * 2;
-    outlink->frame_rate.num = inlink->frame_rate.num * 2;
-    outlink->frame_rate.den = inlink->frame_rate.den;
+    outlink->time_base = av_mul_q(inlink->time_base, (AVRational){1, 2});
+    outlink->frame_rate = av_mul_q(inlink->frame_rate, (AVRational){2, 1});
 
     return 0;
 }



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