libavcodec/interplayvideo.c:513: error: Uninitialized Value
  The value read from P[_] was never initialized.

libavcodec/interplayvideo.c:513:17: 
511.         for (y = 0; y < 8; y += 2) {
512.             for (x = 0; x < 8; x += 2, shifter += 2) {
513.                 pix = P[(flags >> shifter) & 0x03];
                     ^
514.                 *(s->pixel_ptr + x) = pix;
515.                 *(s->pixel_ptr + x + 1) = pix;
