1 /* ------------------------------------------------------------------
2 * Copyright (C) 1998-2009 PacketVideo
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
14 * See the License for the specific language governing permissions
15 * and limitations under the License.
16 * -------------------------------------------------------------------
18 /****************************************************************************************
19 Portions of this file are derived from the following 3GPP standard:
22 ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
23 Available from http://www.3gpp.org
25 (C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
26 Permission to distribute, modify and use this file under the standard license
27 terms listed above has been obtained from the copyright holder.
28 ****************************************************************************************/
30 ------------------------------------------------------------------------------
36 ------------------------------------------------------------------------------
39 This file contains all the constant definitions and prototype definitions
40 needed by the set_sign() and set_sign12k2() function.
42 ------------------------------------------------------------------------------
46 #define SET_SIGN_H "@(#)$Id $"
48 /*----------------------------------------------------------------------------
50 ----------------------------------------------------------------------------*/
51 #include "basicop_malloc.h"
53 /*--------------------------------------------------------------------------*/
59 /*----------------------------------------------------------------------------
61 ; Define module specific macros here
62 ----------------------------------------------------------------------------*/
64 /*----------------------------------------------------------------------------
66 ; Include all pre-processor statements here.
67 ----------------------------------------------------------------------------*/
69 /*----------------------------------------------------------------------------
70 ; EXTERNAL VARIABLES REFERENCES
71 ; Declare variables used in this module but defined elsewhere
72 ----------------------------------------------------------------------------*/
74 /*----------------------------------------------------------------------------
76 ----------------------------------------------------------------------------*/
78 /*----------------------------------------------------------------------------
79 ; ENUMERATED TYPEDEF'S
80 ----------------------------------------------------------------------------*/
82 /*----------------------------------------------------------------------------
83 ; STRUCTURES TYPEDEF'S
84 ----------------------------------------------------------------------------*/
86 /*----------------------------------------------------------------------------
87 ; GLOBAL FUNCTION DEFINITIONS
88 ; Function Prototype declaration
89 ----------------------------------------------------------------------------*/
90 void set_sign(Word16 dn[], /* i/o : correlation between target and h[] */
91 Word16 sign[], /* o : sign of dn[] */
92 Word16 dn2[], /* o : maximum of correlation in each track. */
93 Word16 n /* i : # of maximum correlations in dn2[] */
97 Word16 dn[], /* i/o : correlation between target and h[] */
98 Word16 cn[], /* i : residual after long term prediction */
99 Word16 sign[], /* o : sign of d[n] */
100 Word16 pos_max[], /* o : position of maximum correlation */
101 Word16 nb_track, /* i : number of tracks tracks */
102 Word16 ipos[], /* o : starting position for each pulse */
103 Word16 step, /* i : the step size in the tracks */
104 Flag *pOverflow /* i/o : overflow flag */
106 /*----------------------------------------------------------------------------
108 ----------------------------------------------------------------------------*/
113 #endif /* _SET_SIGN_H_ */