libavcodec/h264pred.c:288: error: Uninitialized Value
  The value read from t4 was never initialized.

libavcodec/h264pred.c:288:5: 
286.     src[3+1*stride]=
287.     src[2+3*stride]=(t3 + 2*t4 + t5 + 2)>>2;
288.     src[3+3*stride]=(t4 + 2*t5 + t6 + 2)>>2;
         ^
289. }
290. 
