@@ -561,11 +561,11 @@ static int write_header(AVFormatContext *s){

         if(j==nut->time_base_count)

             nut->time_base_count++;

-        if(av_q2d(time_base) >= 0.001)

+        if(INT64_C(1000) * time_base.num >= time_base.den)

             nut->stream[i].msb_pts_shift = 7;

         else

             nut->stream[i].msb_pts_shift = 14;

-        nut->stream[i].max_pts_distance= FFMAX(1/av_q2d(time_base), 1);

+        nut->stream[i].max_pts_distance= FFMAX(time_base.den, time_base.num) / time_base.num;

     }

     nut->max_distance = MAX_DISTANCE;