libavcodec/interplayvideo.c:286: error: Uninitialized Value
  The value read from B[_] was never initialized.

libavcodec/interplayvideo.c:286:13: 
284. 
285.         for (y = 0; y < 8; y++) {
286.             flags = B[y];
                 ^
287.             for (x = 0x01; x <= 0x80; x <<= 1) {
288.                 if (flags & x)
