libavcodec/vp9dsp.c:1611: error: Uninitialized Value
  The value read from q5 was never initialized.

libavcodec/vp9dsp.c:1611:13: 
1609.             dst[strideb * -3] = (p7 + p7 + p7 + p6 + p5 + p4 + p3 + p2 * 2 +
1610.                                  p1 + p0 + q0 + q1 + q2 + q3 + q4 + 8) >> 4;
1611.             dst[strideb * -2] = (p7 + p7 + p6 + p5 + p4 + p3 + p2 + p1 * 2 +
                  ^
1612.                                  p0 + q0 + q1 + q2 + q3 + q4 + q5 + 8) >> 4;
1613.             dst[strideb * -1] = (p7 + p6 + p5 + p4 + p3 + p2 + p1 + p0 * 2 +
