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 ------------------------------------------------------------------------------
40 Purpose : Decode the pitch and codebook gains
42 ------------------------------------------------------------------------------
47 #define dec_gain_h "$Id $"
49 /*----------------------------------------------------------------------------
51 ----------------------------------------------------------------------------*/
55 #include "get_const_tbls.h"
57 /*--------------------------------------------------------------------------*/
63 /*----------------------------------------------------------------------------
65 ; [Define module specific macros here]
66 ----------------------------------------------------------------------------*/
68 /*----------------------------------------------------------------------------
70 ; [Include all pre-processor statements here.]
71 ----------------------------------------------------------------------------*/
73 /*----------------------------------------------------------------------------
74 ; EXTERNAL VARIABLES REFERENCES
75 ; [Declare variables used in this module but defined elsewhere]
76 ----------------------------------------------------------------------------*/
78 /*----------------------------------------------------------------------------
80 ----------------------------------------------------------------------------*/
82 /*----------------------------------------------------------------------------
83 ; ENUMERATED TYPEDEF'S
84 ----------------------------------------------------------------------------*/
86 /*----------------------------------------------------------------------------
87 ; STRUCTURES TYPEDEF'S
88 ----------------------------------------------------------------------------*/
90 /*----------------------------------------------------------------------------
91 ; GLOBAL FUNCTION DEFINITIONS
92 ; [List function prototypes here]
93 ----------------------------------------------------------------------------*/
96 * FUNCTION: Dec_gain()
97 * PURPOSE: Decode the pitch and codebook gains
100 gc_predState *pred_state, /* i/o: MA predictor state */
101 enum Mode mode, /* i : AMR mode */
102 Word16 index, /* i : index of quantization. */
103 Word16 code[], /* i : Innovative vector. */
104 Word16 evenSubfr, /* i : Flag for even subframes */
105 Word16 * gain_pit, /* o : Pitch gain. */
106 Word16 * gain_cod, /* o : Code gain. */
107 CommonAmrTbls* common_amr_tbls, /* i : ptr to struct of tbls ptrs */
117 #endif /* _DEC_GAIN_H_ */