1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
/* ------------------------------------------------------------------
* Copyright (C) 1998-2009 PacketVideo
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied.
* See the License for the specific language governing permissions
* and limitations under the License.
* -------------------------------------------------------------------
*/
/****************************************************************************************
Portions of this file are derived from the following 3GPP standard:
3GPP TS 26.173
ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
Available from http://www.3gpp.org
(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
Permission to distribute, modify and use this file under the standard license
terms listed above has been obtained from the copyright holder.
****************************************************************************************/
/*
------------------------------------------------------------------------------
Name: pvamrwbdecoder_cnst.h
Date: 05/02/2007
------------------------------------------------------------------------------
REVISION HISTORY
Description:
------------------------------------------------------------------------------
INCLUDE DESCRIPTION
Main header file for the Packet Video AMR Wide Band decoder library. The
constants, structures, and functions defined within this file, along with
a basic data types header file, is all that is needed to use and communicate
with the library. The internal data structures within the library are
purposely hidden.
------------------------------------------------------------------------------
REFERENCES
(Normally header files do not have a reference section)
------------------------------------------------------------------------------
*/
/*----------------------------------------------------------------------------
; CONTINUE ONLY IF NOT ALREADY DEFINED
----------------------------------------------------------------------------*/
#ifndef PVAMRWBDECODER_CNST_H
#define PVAMRWBDECODER_CNST_H
/*----------------------------------------------------------------------------
; INCLUDES
----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------
; MACROS
; Define module specific macros here
----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------
; DEFINES
; Include all pre-processor statements here.
----------------------------------------------------------------------------*/
#define L_FRAME 256 /* Frame size */
#define L_SUBFR16k 80 /* Subframe size at 16kHz */
#define L_SUBFR 64 /* Subframe size */
#define NB_SUBFR 4 /* Number of subframe per frame */
#define L_NEXT 64 /* Overhead in LP analysis */
#define L_WINDOW 384 /* window size in LP analysis */
#define L_TOTAL 384 /* Total size of speech buffer. */
#define M 16 /* Order of LP filter */
#define M16k 20
#define L_FILT16k 15 /* Delay of down-sampling filter */
#define L_FILT 12 /* Delay of up-sampling filter */
#define GP_CLIP 15565 /* Pitch gain clipping = 0.95 Q14 */
#define PIT_SHARP 27853 /* pitch sharpening factor = 0.85 Q15 */
#define PIT_MIN 34 /* Minimum pitch lag with resolution 1/4 */
#define PIT_FR2 128 /* Minimum pitch lag with resolution 1/2 */
#define PIT_FR1_9b 160 /* Minimum pitch lag with resolution 1 */
#define PIT_FR1_8b 92 /* Minimum pitch lag with resolution 1 */
#define PIT_MAX 231 /* Maximum pitch lag */
#define L_INTERPOL (16+1) /* Length of filter for interpolation */
#define OPL_DECIM 2 /* Decimation in open-loop pitch analysis */
#define PREEMPH_FAC 22282 /* preemphasis factor (0.68 in Q15) */
#define GAMMA1 30147 /* Weighting factor (numerator) (0.92 in Q15) */
#define TILT_FAC 22282 /* tilt factor (denominator) (0.68 in Q15) */
#define Q_MAX 8 /* scaling max for signal (see syn_filt_32) */
#define RANDOM_INITSEED 21845 /* own random init value */
#define L_MEANBUF 3
#define ONE_PER_MEANBUF 10923
#define MODE_7k 0
#define MODE_9k 1
#define MODE_12k 2
#define MODE_14k 3
#define MODE_16k 4
#define MODE_18k 5
#define MODE_20k 6
#define MODE_23k 7
#define MODE_24k 8
#define MRDTX 9
//#define NUM_OF_MODES 10 /* see bits.h for bits definition */
#define EHF_MASK (int16)0x0008 /* homing frame pattern */
#define BIT_0 (int16)-127
#define BIT_1 (int16)127
#define BIT_0_ITU (int16)0x007F
#define BIT_1_ITU (int16)0x0081
/*----------------------------------------------------------------------------
; END
----------------------------------------------------------------------------*/
#endif
|
