libilbc  0.0.1
StateSearchW.h
00001 /*
00002  * iLBC - a library for the iLBC codec
00003  *
00004  * StateSearchW.h - The iLBC low bit rate speech codec.
00005  *
00006  * Adapted by Steve Underwood <steveu@coppice.org> from the reference
00007  * iLBC code supplied in RFC3951.
00008  *
00009  * Original code Copyright (C) The Internet Society (2004).
00010  * All changes to produce this version Copyright (C) 2008 by Steve Underwood
00011  * All Rights Reserved.
00012  *
00013  * This program is distributed in the hope that it will be useful,
00014  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00015  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
00016  *
00017  * $Id: StateSearchW.h,v 1.2 2008/03/06 12:27:37 steveu Exp $
00018  */
00019 
00020 #ifndef __iLBC_STATESEARCHW_H
00021 #define __iLBC_STATESEARCHW_H
00022 
00023 void AbsQuantW(ilbc_encode_state_t *iLBCenc_inst,   /* (i) Encoder instance */
00024                float *in,                           /* (i) vector to encode */
00025                float *syntDenum,                    /* (i) denominator of synthesis filter */
00026                float *weightDenum,                  /* (i) denominator of weighting filter */
00027                int *out,                            /* (o) vector of quantizer indexes */
00028                int len,                             /* (i) length of vector to encode and
00029                                                            vector of quantizer indexes */
00030                int state_first);                    /* (i) position of start state in the 80 vec */
00031 
00032 void StateSearchW(ilbc_encode_state_t *iLBCenc_inst,    /* (i) Encoder instance */
00033                   float *residual,                      /* (i) target residual vector */
00034                   float *syntDenum,                     /* (i) lpc synthesis filter */
00035                   float *weightDenum,                   /* (i) weighting filter denuminator */
00036                   int *idxForMax,                       /* (o) quantizer index for maximum
00037                                                                amplitude */
00038                   int *idxVec,                          /* (o) vector of quantization indexes */
00039                   int len,                              /* (i) length of all vectors */
00040                   int state_first);                     /* (i) position of start state in the 80 vec */
00041 
00042 #endif