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
23void 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
32void 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:67