libavcodec/h264pred.c:411: error: Uninitialized Value
  The value read from l2 was never initialized.

libavcodec/h264pred.c:411:5: 
409.     src[3+2*stride]=(lt + 2*l0 + l1 + 2)>>2;
410.     src[0+2*stride]=
411.     src[2+3*stride]=(l1 + l2+ 1)>>1;
         ^
412.     src[1+2*stride]=
413.     src[3+3*stride]=(l0 + 2*l1 + l2 + 2)>>2;
