libavcodec/interplayvideo.c:583: error: Uninitialized Value
  The value read from P[_] was never initialized.

libavcodec/interplayvideo.c:583:9: 
581.         P[y] = *s->stream_ptr++;
582. 
583.     if (P[0] <= P[1]) {
             ^
584. 
585.         /* 4-color encoding for each quadrant; need 28 more bytes */
