@@ -695,7 +695,7 @@ static void do_video_out(AVFormatContext *s,

         if (vdelta < -1.1)

             nb_frames = 0;

         else if (vdelta > 1.1)

-            nb_frames = lrintf(vdelta - 1.1 + 0.5);

+            nb_frames = lrintf(vdelta);

 //fprintf(stderr, "vdelta:%f, ost->sync_opts:%lld, ost->sync_ipts:%f nb_frames:%d\n", vdelta, ost->sync_opts, ost->sync_ipts, nb_frames);

         if (nb_frames == 0){

             ++nb_frames_drop;