psy_const.h revision b676a05348e4c516fa8b57e33b10548e6142c3f8 
1/*
2 ** Copyright 2003-2010, VisualOn, Inc.
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 express or implied.
13 ** See the License for the specific language governing permissions and
14 ** limitations under the License.
15 */
16/*******************************************************************************
17	File:		psy_const.h
18
19	Content:	Global psychoacoustic constants structures
20
21*******************************************************************************/
22
23#ifndef _PSYCONST_H
24#define _PSYCONST_H
25
26#include "config.h"
27
28#define TRUE  1
29#define FALSE 0
30
31#define FRAME_LEN_LONG    AACENC_BLOCKSIZE
32#define TRANS_FAC         8
33#define FRAME_LEN_SHORT   (FRAME_LEN_LONG/TRANS_FAC)
34
35
36
37/* Block types */
38enum
39{
40  LONG_WINDOW = 0,
41  START_WINDOW,
42  SHORT_WINDOW,
43  STOP_WINDOW
44};
45
46/* Window shapes */
47enum
48{
49  SINE_WINDOW = 0,
50  KBD_WINDOW  = 1
51};
52
53/*
54  MS stuff
55*/
56enum
57{
58  SI_MS_MASK_NONE = 0,
59  SI_MS_MASK_SOME = 1,
60  SI_MS_MASK_ALL  = 2
61};
62
63#define MAX_NO_OF_GROUPS 4
64#define MAX_SFB_SHORT   15  /* 15 for a memory optimized implementation, maybe 16 for convenient debugging */
65#define MAX_SFB_LONG    51  /* 51 for a memory optimized implementation, maybe 64 for convenient debugging */
66#define MAX_SFB         (MAX_SFB_SHORT > MAX_SFB_LONG ? MAX_SFB_SHORT : MAX_SFB_LONG)   /* = MAX_SFB_LONG */
67#define MAX_GROUPED_SFB (MAX_NO_OF_GROUPS*MAX_SFB_SHORT > MAX_SFB_LONG ? \
68                         MAX_NO_OF_GROUPS*MAX_SFB_SHORT : MAX_SFB_LONG)
69
70#define BLOCK_SWITCHING_OFFSET		   (1*1024+3*128+64+128)
71#define BLOCK_SWITCHING_DATA_SIZE          FRAME_LEN_LONG
72
73#define TRANSFORM_OFFSET_LONG    0
74#define TRANSFORM_OFFSET_SHORT   448
75
76#define LOG_NORM_PCM          -15
77
78#define NUM_SAMPLE_RATES	12
79
80#endif /* _PSYCONST_H */
81