avfilter/vf_scale: don't attempt to rescale AV_NOPTS_VALUE

Finishes fixing issue #20589.

Signed-off-by: James Almer <jamrial@gmail.com>

diff --git a/libavfilter/vf_scale.c b/libavfilter/vf_scale.c
index 3319428d9c27fa3da3211137c6c179be5a4dc88f..420dc13dc5688c68a59dfafb4242adac5736b9bd 100644 (file)
--- a/libavfilter/vf_scale.c
+++ b/libavfilter/vf_scale.c
@@ -1119,7 +1119,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
         goto err;
 
     av_assert0(out);
-    out->pts = av_rescale_q(fs->pts, fs->time_base, outlink->time_base);
+    out->pts = av_rescale_q_rnd(fs->pts, fs->time_base, outlink->time_base, AV_ROUND_NEAR_INF | AV_ROUND_PASS_MINMAX);
     return ff_filter_frame(outlink, out);
 
 err: