libavformat/rmdec.c:793: error: Uninitialized Value
  The value read from flags was never initialized.

libavformat/rmdec.c:793:52: 
791.         }
792. 
793.         if(  (st->discard >= AVDISCARD_NONKEY && !(flags&2))
                                                        ^
794.            || st->discard >= AVDISCARD_ALL){
795.             av_free_packet(pkt);
