libavcodec/vp8dsp.c:162: error: Uninitialized Value
  The value read from q1 was never initialized.

libavcodec/vp8dsp.c:162:54: 
160.     return simple_limit(p, stride, 2*E+I)
161.         && FFABS(p3-p2) <= I && FFABS(p2-p1) <= I && FFABS(p1-p0) <= I
162.         && FFABS(q3-q2) <= I && FFABS(q2-q1) <= I && FFABS(q1-q0) <= I;
                                                          ^
163. }
164. 
