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-rw-r--r--media/libopus/celt/entdec.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/media/libopus/celt/entdec.c b/media/libopus/celt/entdec.c
index 0b3433ed8b..027aa24bca 100644
--- a/media/libopus/celt/entdec.c
+++ b/media/libopus/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;