1b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/* ------------------------------------------------------------------
2b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * Copyright (C) 1998-2009 PacketVideo
3b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber *
4b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * Licensed under the Apache License, Version 2.0 (the "License");
5b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * you may not use this file except in compliance with the License.
6b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * You may obtain a copy of the License at
7b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber *
8b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber *      http://www.apache.org/licenses/LICENSE-2.0
9b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber *
10b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * Unless required by applicable law or agreed to in writing, software
11b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * distributed under the License is distributed on an "AS IS" BASIS,
12b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
13b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * express or implied.
14b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * See the License for the specific language governing permissions
15b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * and limitations under the License.
16b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * -------------------------------------------------------------------
17b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber */
18b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/****************************************************************************************
19b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas HuberPortions of this file are derived from the following 3GPP standard:
20b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
21b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    3GPP TS 26.073
22b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
23b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    Available from http://www.3gpp.org
24b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
25b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
26b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas HuberPermission to distribute, modify and use this file under the standard license
27b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huberterms listed above has been obtained from the copyright holder.
28b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber****************************************************************************************/
29b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/*
30b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------
31b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
32b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
33b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
34b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Filename: /audio/gsm_amr/c/src/include/ol_ltp.h
35b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
36b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber     Date: 02/06/2002
37b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
38b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------
39b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber REVISION HISTORY
40b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
41b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Description:  Replaced "int" and/or "char" with OSCL defined types.
42b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
43b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Description: Moved _cplusplus #ifdef after Include section.
44b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
45b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Description:
46b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
47b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------
48b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber INCLUDE DESCRIPTION
49b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
50b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber       File             : ol_ltp.h
51b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber       Purpose          : Compute the open loop pitch lag.
52b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
53b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------
54b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber*/
55b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
56b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#ifndef OL_LTP_H
57b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#define OL_LTP_H "$Id $"
58b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
59b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/*----------------------------------------------------------------------------
60b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber; INCLUDES
61b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber----------------------------------------------------------------------------*/
62b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#include "typedef.h"
63b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#include "mode.h"
64b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#include "p_ol_wgh.h"
65b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
66b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/*--------------------------------------------------------------------------*/
67b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#ifdef __cplusplus
68b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huberextern "C"
69b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber{
70b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#endif
71b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
72b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    /*----------------------------------------------------------------------------
73b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ; MACROS
74b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ; [Define module specific macros here]
75b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ----------------------------------------------------------------------------*/
76b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
77b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    /*----------------------------------------------------------------------------
78b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ; DEFINES
79b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ; [Include all pre-processor statements here.]
80b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ----------------------------------------------------------------------------*/
81b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
82b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    /*----------------------------------------------------------------------------
83b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ; EXTERNAL VARIABLES REFERENCES
84b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ; [Declare variables used in this module but defined elsewhere]
85b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ----------------------------------------------------------------------------*/
86b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
87b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    /*----------------------------------------------------------------------------
88b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ; SIMPLE TYPEDEF'S
89b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ----------------------------------------------------------------------------*/
90b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
91b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    /*----------------------------------------------------------------------------
92b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ; ENUMERATED TYPEDEF'S
93b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ----------------------------------------------------------------------------*/
94b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
95b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    /*----------------------------------------------------------------------------
96b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ; STRUCTURES TYPEDEF'S
97b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ----------------------------------------------------------------------------*/
98b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
99b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
100b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    /*----------------------------------------------------------------------------
101b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ; GLOBAL FUNCTION DEFINITIONS
102b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ; [List function prototypes here]
103b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ----------------------------------------------------------------------------*/
104b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    void ol_ltp(
105b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber        pitchOLWghtState *st, /* i/o : State struct                            */
106b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber        vadState *vadSt,      /* i/o : VAD state struct                        */
107b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber        enum Mode mode,       /* i   : coder mode                              */
108b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber        Word16 wsp[],         /* i   : signal used to compute the OL pitch, Q0 */
109b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber        /*       uses signal[-pit_max] to signal[-1]     */
110b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber        Word16 *T_op,         /* o   : open loop pitch lag,                 Q0 */
111b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber        Word16 old_lags[],    /* i   : history with old stored Cl lags         */
112b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber        Word16 ol_gain_flg[], /* i   : OL gain flag                            */
113b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber        Word16 idx,           /* i   : index                                   */
114b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber        Flag dtx,             /* i   : dtx flag; use dtx=1, do not use dtx=0   */
115b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber        Flag *pOverflow       /* i/o : overflow Flag                           */
116b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    );
117b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
118b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
119b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#ifdef __cplusplus
120b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber}
121b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#endif
122b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
123b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#endif  /* _OL_LTP_H_ */
124b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
125b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
126