libavcodec/h264pred.c:414: error: Uninitialized Value
  The value read from l2 was never initialized.

libavcodec/h264pred.c:414:5: 
412.     src[1+2*stride]=
413.     src[3+3*stride]=(l0 + 2*l1 + l2 + 2)>>2;
414.     src[0+3*stride]=(l2 + l3 + 1)>>1;
         ^
415.     src[1+3*stride]=(l1 + 2*l2 + l3 + 2)>>2;
416. }
