libavcodec/bmp.c:122: error: Uninitialized Value
  The value read from rgb[_] was never initialized.

libavcodec/bmp.c:122:13: 
120.     case 32:
121.         if(comp == BMP_BITFIELDS){
122.             rgb[0] = (rgb[0] >> 15) & 3;
                 ^
123.             rgb[1] = (rgb[1] >> 15) & 3;
124.             rgb[2] = (rgb[2] >> 15) & 3;
