libavcodec/interplayvideo.c:553: error: Uninitialized Value
  The value read from P[_] was never initialized.

libavcodec/interplayvideo.c:553:17: 
551.             }
552.             for (x = 0; x < 8; x++, shifter += 2) {
553.                 pix = P[(flags >> shifter) & 0x03];
                     ^
554.                 *(s->pixel_ptr + x) = pix;
555.                 *(s->pixel_ptr + s->stride + x) = pix;
