libavcodec/ratecontrol.c:614: error: Uninitialized Value
  The value read from bits_tab[_] was never initialized.

libavcodec/ratecontrol.c:614:13: 
612.         float factor= bits_sum/cplx_sum;
613.         for(i=0; i<s->mb_num; i++){
614.             float newq= q*cplx_tab[i]/bits_tab[i];
                 ^
615.             newq*= factor;
616. 
