diff --git a/libavformat/mov.c b/libavformat/mov.c index 85f5f830a3..834969a6e9 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -3419,7 +3419,7 @@ static int mov_read_header(AVFormatContext *s) } if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && sc->nb_frames_for_fps > 0 && sc->duration_for_fps > 0) av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den, - sc->time_scale*sc->nb_frames_for_fps, sc->duration_for_fps, INT_MAX); + sc->time_scale*(int64_t)sc->nb_frames_for_fps, sc->duration_for_fps, INT_MAX); } if (mov->trex_data) {