libavcodec/interplayvideo.c:489: error: Uninitialized Value
  The value read from P[_] was never initialized.

libavcodec/interplayvideo.c:489:28: 
487.         P[y] = *s->stream_ptr++;
488. 
489.     if ((P[0] <= P[1]) && (P[2] <= P[3])) {
                                ^
490. 
491.         /* 1 of 4 colors for each pixel, need 16 more bytes */
