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/pitch_ol.h
35b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
36b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber     Date: 02/06/2002
37b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
38b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------
39b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber REVISION HISTORY
40b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
41b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Description: Moved _cplusplus #ifdef after Include section.
42b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
43b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Description:
44b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
45b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------
46b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber INCLUDE DESCRIPTION
47b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
48b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber       File             : pitch_ol.h
49b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber       Purpose          : Compute the open loop pitch lag.
50b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
51b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------
52b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber*/
53b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
54b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#ifndef PITCH_OL_H
55b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#define PITCH_OL_H "$Id $"
56b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
57b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/*----------------------------------------------------------------------------
58b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber; INCLUDES
59b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber----------------------------------------------------------------------------*/
60b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#include "typedef.h"
61b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#include "mode.h"
62b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#include "vad.h"
63b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
64b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/*--------------------------------------------------------------------------*/
65b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#ifdef __cplusplus
66b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huberextern "C"
67b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber{
68b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#endif
69b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
70b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    /*----------------------------------------------------------------------------
71b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ; MACROS
72b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ; [Define module specific macros here]
73b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ----------------------------------------------------------------------------*/
74b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
75b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    /*----------------------------------------------------------------------------
76b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ; DEFINES
77b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ; [Include all pre-processor statements here.]
78b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ----------------------------------------------------------------------------*/
79b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
80b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    /*----------------------------------------------------------------------------
81b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ; EXTERNAL VARIABLES REFERENCES
82b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ; [Declare variables used in this module but defined elsewhere]
83b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ----------------------------------------------------------------------------*/
84b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
85b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    /*----------------------------------------------------------------------------
86b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ; SIMPLE TYPEDEF'S
87b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ----------------------------------------------------------------------------*/
88b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
89b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    /*----------------------------------------------------------------------------
90b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ; ENUMERATED TYPEDEF'S
91b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ----------------------------------------------------------------------------*/
92b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
93b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    /*----------------------------------------------------------------------------
94b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ; STRUCTURES TYPEDEF'S
95b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ----------------------------------------------------------------------------*/
96b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
97b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
98b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    /*----------------------------------------------------------------------------
99b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ; GLOBAL FUNCTION DEFINITIONS
100b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ; [List function prototypes here]
101b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    ----------------------------------------------------------------------------*/
102b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    Word16 Pitch_ol(       /* o   : open loop pitch lag                         */
103b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber        vadState *vadSt,   /* i/o : VAD state struct                            */
104b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber        enum Mode mode,    /* i   : coder mode                                  */
105b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber        Word16 signal[],   /* i   : signal used to compute the open loop pitch  */
106b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber        /*    signal[-pit_max] to signal[-1] should be known */
107b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber        Word16 pit_min,    /* i   : minimum pitch lag                           */
108b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber        Word16 pit_max,    /* i   : maximum pitch lag                           */
109b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber        Word16 L_frame,    /* i   : length of frame to compute pitch            */
110b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber        Word16 idx,        /* i   : frame index                                 */
111b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber        Flag dtx,          /* i   : dtx flag; use dtx=1, do not use dtx=0       */
112b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber        Flag *pOverflow    /* i/o : overflow Flag                               */
113b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber    );
114b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
115b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
116b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#ifdef __cplusplus
117b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber}
118b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#endif
119b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
120b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#endif  /* PITCH_OL_H_ */
121b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
122b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber
123