(C)Copyright 2000 NTT Cyber Space Laboratories

Control function for bit stream reading


name
TvqGetVectorInfo, TvqWtypeToBtype, TvqUpdateVectorInfo - TwinVQ control function for bit stream reading

style
#include "twinvq.h"
#include "tvqdec.h"
void TvqGetVectorInfo(int *bits0[], int *bits1[]);
int TvqWtypeToBtype(int wtype, int *btype);
void TvqUpdateVectorInfo(int varBits, int *ndiv, int bits0[], int bits1[]);

function
These are not called directly from decoder. These are called from TvqReadBsFrame()

TvqGetVectorInfo() gets VQ information at the initialization.
TvqWtypeToBtype() converts windowtype to blocktype. Return 1 if windowtype is invalid, otherwise return 0.
TvqUpdateVectorInfo() updates VQ parameters such as ndiv (number of vectors), and bit0, bit1, depending on varBits.