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 ------------------------------------------------------------------------------
34 Filename: /audio/gsm_amr/c/include/g_pitch.h
39 ------------------------------------------------------------------------------
42 Description: Moved _cplusplus #ifdef after Include section.
47 ------------------------------------------------------------------------------
50 This file contains all the constant definitions and prototype definitions
51 needed by the G_pitch() function.
53 ------------------------------------------------------------------------------
59 /*----------------------------------------------------------------------------
61 ----------------------------------------------------------------------------*/
65 /*--------------------------------------------------------------------------*/
71 /*----------------------------------------------------------------------------
73 ; Define module specific macros here
74 ----------------------------------------------------------------------------*/
76 /*----------------------------------------------------------------------------
78 ; Include all pre-processor statements here.
79 ----------------------------------------------------------------------------*/
81 /*----------------------------------------------------------------------------
82 ; EXTERNAL VARIABLES REFERENCES
83 ; Declare variables used in this module but defined elsewhere
84 ----------------------------------------------------------------------------*/
86 /*----------------------------------------------------------------------------
88 ----------------------------------------------------------------------------*/
90 /*----------------------------------------------------------------------------
91 ; ENUMERATED TYPEDEF'S
92 ----------------------------------------------------------------------------*/
94 /*----------------------------------------------------------------------------
95 ; STRUCTURES TYPEDEF'S
96 ----------------------------------------------------------------------------*/
98 /*----------------------------------------------------------------------------
99 ; GLOBAL FUNCTION DEFINITIONS
100 ; Function Prototype declaration
101 ----------------------------------------------------------------------------*/
102 Word16 G_pitch( /* o : Gain of pitch lag saturated to 1.2 */
103 enum Mode mode, /* i : AMR mode */
104 Word16 xn[], /* i : Pitch target. */
105 Word16 y1[], /* i : Filtered adaptive codebook. */
106 Word16 g_coeff[], /* i : Correlations need for gain quantization */
107 Word16 L_subfr, /* i : Length of subframe. */
108 Flag *pOverflow /* i/o : Overflow flag */
111 /*----------------------------------------------------------------------------
113 ----------------------------------------------------------------------------*/
118 #endif /* _G_PITCH_H_ */