Update to opus-HEAD-66611f1.

celt/entdec.c

 /* Copyright (c) 2001-2011 Timothy B. Terriberry
    Copyright (c) 2008-2009 Xiph.Org Foundation */
 /*
    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions
    are met:
 
    - Redistributions of source code must retain the above copyright
    notice, this list of conditions and the following disclaimer.
 
@@ skipping 120 matching lines @@
   _this->rng=1U<<EC_CODE_EXTRA;
   _this->rem=ec_read_byte(_this);
   _this->val=_this->rng-1-(_this->rem>>(EC_SYM_BITS-EC_CODE_EXTRA));
   _this->error=0;
   /*Normalize the interval.*/
   ec_dec_normalize(_this);
 }
 
 unsigned ec_decode(ec_dec *_this,unsigned _ft){
   unsigned s;
-  _this->ext=_this->rng/_ft;
+  _this->ext=celt_udiv(_this->rng,_ft);
   s=(unsigned)(_this->val/_this->ext);
   return _ft-EC_MINI(s+1,_ft);
 }
 
 unsigned ec_decode_bin(ec_dec *_this,unsigned _bits){
    unsigned s;
    _this->ext=_this->rng>>_bits;
    s=(unsigned)(_this->val/_this->ext);
    return (1U<<_bits)-EC_MINI(s+1U,1U<<_bits);
 }
@@ skipping 84 matching lines @@
     while(available<=EC_WINDOW_SIZE-EC_SYM_BITS);
   }
   ret=(opus_uint32)window&(((opus_uint32)1<<_bits)-1U);
   window>>=_bits;
   available-=_bits;
   _this->end_window=window;
   _this->nend_bits=available;
   _this->nbits_total+=_bits;
   return ret;
 }