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 : Algebraic codebook decoder
41 ********************************************************************************
44 #define d2_11pf_h "$Id $"
47 ********************************************************************************
49 ********************************************************************************
59 ********************************************************************************
60 * LOCAL VARIABLES AND TABLES
61 ********************************************************************************
65 ********************************************************************************
66 * DEFINITION OF DATA TYPES
67 ********************************************************************************
71 ********************************************************************************
72 * DECLARATION OF PROTOTYPES
73 ********************************************************************************
75 /*************************************************************************
77 * FUNCTION: decode_2i40_11bits (decod_ACELP())
79 * PURPOSE: Algebraic codebook decoder for 2 pulses coded with 11 bits
81 *************************************************************************/
83 void decode_2i40_11bits(
84 Word16 sign, /* i : signs of 2 pulses. */
85 Word16 index, /* i : Positions of the 2 pulses. */
86 Word16 cod[] /* o : algebraic (fixed) codebook excitation */