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

[Paul B Mahol]

ffmpeg | branch: master | Paul B Mahol <onemda at gmail.com> | Fri Jul 16 09:04:21 2021 +0200| [ca94d52f2ea3e6767c234874cf833861ddd90762] | committer: Paul B Mahol

avfilter/vf_estdif: fix time base for large denominators

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ca94d52f2ea3e6767c234874cf833861ddd90762
---

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

diff --git a/libavfilter/vf_estdif.c b/libavfilter/vf_estdif.c
index 9dda604d3c..192837ab0f 100644
--- a/libavfilter/vf_estdif.c
+++ b/libavfilter/vf_estdif.c
@@ -140,10 +140,8 @@ static int config_output(AVFilterLink *outlink)
     AVFilterContext *ctx = outlink->src;
     AVFilterLink *inlink = ctx->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;
 }