libavcodec/h264pred.c:259: error: Uninitialized Value
  The value read from l0 was never initialized.

libavcodec/h264pred.c:259:5: 
257.     src[3+0*stride]=(t2 + t3 + 1)>>1;
258.     src[0+1*stride]=
259.     src[1+3*stride]=(l0 + 2*lt + t0 + 2)>>2;
         ^
260.     src[1+1*stride]=
261.     src[2+3*stride]=(lt + 2*t0 + t1 + 2)>>2;
