libavcodec/h264.c:4400: error: Uninitialized Value
  The value read from level[_] was never initialized.

libavcodec/h264.c:4400:9: 
4398.     j = scantable[coeff_num];
4399.     if(n > 24){
4400.         block[j] = level[0];
              ^
4401.         for(i=1;i<total_coeff;i++) {
4402.             if(zeros_left <= 0)
