diff options
Diffstat (limited to 'celt/entdec.c')
| -rw-r--r-- | celt/entdec.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/celt/entdec.c b/celt/entdec.c index 0b3433ed..027aa24b 100644 --- a/celt/entdec.c +++ b/celt/entdec.c @@ -195,6 +195,27 @@ int ec_dec_icdf(ec_dec *_this,const unsigned char *_icdf,unsigned _ftb){ return ret; } +int ec_dec_icdf16(ec_dec *_this,const opus_uint16 *_icdf,unsigned _ftb){ + opus_uint32 r; + opus_uint32 d; + opus_uint32 s; + opus_uint32 t; + int ret; + s=_this->rng; + d=_this->val; + r=s>>_ftb; + ret=-1; + do{ + t=s; + s=IMUL32(r,_icdf[++ret]); + } + while(d<s); + _this->val=d-s; + _this->rng=t-s; + ec_dec_normalize(_this); + return ret; +} + opus_uint32 ec_dec_uint(ec_dec *_this,opus_uint32 _ft){ unsigned ft; unsigned s; |