libvoipcodecs  0.0.1
StateSearchW.h
1 /*
2  * iLBC - a library for the iLBC codec
3  *
4  * StateSearchW.h - The iLBC low bit rate speech codec.
5  *
6  * Adapted by Steve Underwood <steveu@coppice.org> from the reference
7  * iLBC code supplied in RFC3951.
8  *
9  * Original code Copyright (C) The Internet Society (2004).
10  * All changes to produce this version Copyright (C) 2008 by Steve Underwood
11  * All Rights Reserved.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
16  *
17  * $Id: StateSearchW.h,v 1.2 2008/03/06 12:27:37 steveu Exp $
18  */
19 
20 #ifndef __iLBC_STATESEARCHW_H
21 #define __iLBC_STATESEARCHW_H
22 
23 void AbsQuantW(ilbc_encode_state_t *iLBCenc_inst, /* (i) Encoder instance */
24  float *in, /* (i) vector to encode */
25  float *syntDenum, /* (i) denominator of synthesis filter */
26  float *weightDenum, /* (i) denominator of weighting filter */
27  int *out, /* (o) vector of quantizer indexes */
28  int len, /* (i) length of vector to encode and
29  vector of quantizer indexes */
30  int state_first); /* (i) position of start state in the 80 vec */
31 
32 void StateSearchW(ilbc_encode_state_t *iLBCenc_inst, /* (i) Encoder instance */
33  float *residual, /* (i) target residual vector */
34  float *syntDenum, /* (i) lpc synthesis filter */
35  float *weightDenum, /* (i) weighting filter denuminator */
36  int *idxForMax, /* (o) quantizer index for maximum
37  amplitude */
38  int *idxVec, /* (o) vector of quantization indexes */
39  int len, /* (i) length of all vectors */
40  int state_first); /* (i) position of start state in the 80 vec */
41 
42 #endif
Definition: ilbc/ilbc.h:66