libavcodec/h264pred.c:814: error: Uninitialized Value
  The value read from l7 was never initialized.

libavcodec/h264pred.c:814:61: 
812. #define ROW(y) ((uint32_t*)(src+y*stride))[0] =\
813.                ((uint32_t*)(src+y*stride))[1] = 0x01010101 * l##y
814.     ROW(0); ROW(1); ROW(2); ROW(3); ROW(4); ROW(5); ROW(6); ROW(7);
                                                                 ^
815. #undef ROW
816. }
