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 ********************************************************************************
32 * GSM AMR-NB speech codec R98 Version 7.5.0 March 2, 2001
36 ********************************************************************************
39 * Purpose : common part (init, exit, reset) of LSF quantization
40 * module (rest in q_plsf_3.c and q_plsf_5.c)
42 ********************************************************************************
46 ********************************************************************************
47 * MODULE INCLUDE FILE AND VERSION ID
48 ********************************************************************************
53 ********************************************************************************
55 ********************************************************************************
63 ********************************************************************************
65 ********************************************************************************
69 **************************************************************************
71 * Function : Q_plsf_init
72 * Purpose : Allocates memory and initializes state variables
74 **************************************************************************
76 Word16 Q_plsf_init(Q_plsfState **state)
80 if (state == (Q_plsfState **) NULL)
82 /* fprintf(stderr, "Q_plsf_init: invalid parameter\n"); */
88 if ((s = (Q_plsfState *) oscl_malloc(sizeof(Q_plsfState))) == NULL)
90 /* fprintf(stderr, "Q_plsf_init: can not malloc state structure\n"); */
101 **************************************************************************
103 * Function : Q_plsf_reset
104 * Purpose : Resets state memory
106 **************************************************************************
108 Word16 Q_plsf_reset(Q_plsfState *state)
112 if (state == (Q_plsfState *) NULL)
114 /* fprintf(stderr, "Q_plsf_reset: invalid parameter\n"); */
118 for (i = 0; i < M; i++)
119 state->past_rq[i] = 0;
125 **************************************************************************
127 * Function : Q_plsf_exit
128 * Purpose : The memory used for state memory is freed
130 **************************************************************************
132 void Q_plsf_exit(Q_plsfState **state)
134 if (state == NULL || *state == NULL)
137 /* deallocate memory */