libavcodec/amrnbdec.c:281: error: Uninitialized Value
  The value read from lsf_r[_] was never initialized.

libavcodec/amrnbdec.c:281:9: 
279. 
280.     if (sign) {
281.         lsf_r[4] *= -1;
             ^
282.         lsf_r[5] *= -1;
283.     }
