diff --git a/libavformat/utils.c b/libavformat/utils.c
index d83c73697f..80b1ce2f7c 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -2355,6 +2355,9 @@ int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options)
                 int      best_fps = 0;
                 double best_error = 0.01;
 
+                if (delta_dts     >= INT64_MAX / st->time_base.num ||
+                    delta_packets >= INT64_MAX / st->time_base.den)
+                    continue;
                 av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
                           delta_packets*(int64_t)st->time_base.den,
                           delta_dts*(int64_t)st->time_base.num, 60000);