diff --git a/libavfilter/vf_yadif_cuda.c b/libavfilter/vf_yadif_cuda.c
index 4e41c8b554..bbdbfc1adc 100644
--- a/libavfilter/vf_yadif_cuda.c
+++ b/libavfilter/vf_yadif_cuda.c
@@ -297,10 +297,9 @@ static int config_output(AVFilterLink *link)
         goto exit;
     }
 
-    link->time_base.num = ctx->inputs[0]->time_base.num;
-    link->time_base.den = ctx->inputs[0]->time_base.den * 2;
-    link->w             = ctx->inputs[0]->w;
-    link->h             = ctx->inputs[0]->h;
+    link->time_base = av_mul_q(ctx->inputs[0]->time_base, (AVRational){1, 2});
+    link->w         = ctx->inputs[0]->w;
+    link->h         = ctx->inputs[0]->h;
 
     if(y->mode & 1)
         link->frame_rate = av_mul_q(ctx->inputs[0]->frame_rate,