gray_tbl.cpp revision 4f1efc098cb5791c3e9f483f2af84aef70d2d0a0 
1/* ------------------------------------------------------------------
2 * Copyright (C) 1998-2009 PacketVideo
3 *
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
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
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
13 * express or implied.
14 * See the License for the specific language governing permissions
15 * and limitations under the License.
16 * -------------------------------------------------------------------
17 */
18/****************************************************************************************
19Portions of this file are derived from the following 3GPP standard:
20
21    3GPP TS 26.073
22    ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
23    Available from http://www.3gpp.org
24
25(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
26Permission to distribute, modify and use this file under the standard license
27terms listed above has been obtained from the copyright holder.
28****************************************************************************************/
29/*
30
31 Filename: /audio/gsm_amr/c/src/gray_tbl.c
32
33------------------------------------------------------------------------------
34 REVISION HISTORY
35
36 Description: Added #ifdef __cplusplus and removed "extern" from table
37              definition.
38
39 Description: Put "extern" back.
40
41 Who:                       Date:
42 Description:
43
44------------------------------------------------------------------------------
45 MODULE DESCRIPTION
46
47 This file contains the declaration for the gray encoding and decoding tables,
48 gray_tbl[] and dgray_tbl[] used by the c1035pf and d1035pf module
49 respectively.
50
51------------------------------------------------------------------------------
52*/
53
54/*----------------------------------------------------------------------------
55; INCLUDES
56----------------------------------------------------------------------------*/
57#include "typedef.h"
58
59/*--------------------------------------------------------------------------*/
60#ifdef __cplusplus
61extern "C"
62{
63#endif
64
65    /*----------------------------------------------------------------------------
66    ; MACROS
67    ; [Define module specific macros here]
68    ----------------------------------------------------------------------------*/
69
70    /*----------------------------------------------------------------------------
71    ; DEFINES
72    ; [Include all pre-processor statements here. Include conditional
73    ; compile variables also.]
74    ----------------------------------------------------------------------------*/
75
76    /*----------------------------------------------------------------------------
77    ; LOCAL FUNCTION DEFINITIONS
78    ; [List function prototypes here]
79    ----------------------------------------------------------------------------*/
80
81    /*----------------------------------------------------------------------------
82    ; LOCAL VARIABLE DEFINITIONS
83    ; [Variable declaration - defined here and used outside this module]
84    ----------------------------------------------------------------------------*/
85
86    extern const Word16 gray[8]  = {0, 1, 3, 2, 6, 4, 5, 7};
87    extern const Word16 dgray[8] = {0, 1, 3, 2, 5, 6, 4, 7};
88
89    /*--------------------------------------------------------------------------*/
90#ifdef __cplusplus
91}
92#endif
93
94/*
95------------------------------------------------------------------------------
96 FUNCTION NAME:
97------------------------------------------------------------------------------
98 INPUT AND OUTPUT DEFINITIONS
99
100 Inputs:
101    None
102
103 Outputs:
104    None
105
106 Returns:
107    None
108
109 Global Variables Used:
110    None
111
112 Local Variables Needed:
113    None
114
115------------------------------------------------------------------------------
116 FUNCTION DESCRIPTION
117
118 None
119
120------------------------------------------------------------------------------
121 REQUIREMENTS
122
123 None
124
125------------------------------------------------------------------------------
126 REFERENCES
127
128 [1] gray.tab,  UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
129
130------------------------------------------------------------------------------
131 PSEUDO-CODE
132
133
134------------------------------------------------------------------------------
135 RESOURCES USED [optional]
136
137 When the code is written for a specific target processor the
138 the resources used should be documented below.
139
140 HEAP MEMORY USED: x bytes
141
142 STACK MEMORY USED: x bytes
143
144 CLOCK CYCLES: (cycle count equation for this function) + (variable
145                used to represent cycle count for each subroutine
146                called)
147     where: (cycle count variable) = cycle count for [subroutine
148                                     name]
149
150------------------------------------------------------------------------------
151 CAUTION [optional]
152 [State any special notes, constraints or cautions for users of this function]
153
154------------------------------------------------------------------------------
155*/
156
157/*----------------------------------------------------------------------------
158; FUNCTION CODE
159----------------------------------------------------------------------------*/
160
161