libavcodec/alsdec.c:750: error: Uninitialized Value
  The value read from sx[_] was never initialized.

libavcodec/alsdec.c:750:13: 
748.             delta[sb] = 5 - s[sb] + k[sb];
749. 
750.             ff_bgmc_decode(gb, sb_length, current_res,
                 ^
751.                         delta[sb], sx[sb], &high, &low, &value, ctx->bgmc_lut, ctx->bgmc_lut_status);
752. 
