psy_configuration.h revision 41050cdb033641ddf26831d9272c0930f7b40a2d 
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_configuration.h
18
19	Content:	Psychoaccoustic configuration structure and functions
20
21*******************************************************************************/
22
23#ifndef _PSY_CONFIGURATION_H
24#define _PSY_CONFIGURATION_H
25
26#include "typedefs.h"
27#include "psy_const.h"
28#include "tns.h"
29
30typedef struct{
31
32  Word16 sfbCnt;
33  Word16 sfbActive;   /* number of sf bands containing energy after lowpass */
34  Word16 *sfbOffset;
35
36  Word32 sfbThresholdQuiet[MAX_SFB_LONG];
37
38  Word16 maxAllowedIncreaseFactor;   /* preecho control */
39  Word16 minRemainingThresholdFactor;
40
41  Word16 lowpassLine;
42  Word16 sampRateIdx;
43  Word32 clipEnergy;                 /* for level dependend tmn */
44
45  Word16 ratio;
46  Word16 sfbMaskLowFactor[MAX_SFB_LONG];
47  Word16 sfbMaskHighFactor[MAX_SFB_LONG];
48
49  Word16 sfbMaskLowFactorSprEn[MAX_SFB_LONG];
50  Word16 sfbMaskHighFactorSprEn[MAX_SFB_LONG];
51
52
53  Word16 sfbMinSnr[MAX_SFB_LONG];       /* minimum snr (formerly known as bmax) */
54
55  TNS_CONFIG tnsConf;
56
57}PSY_CONFIGURATION_LONG; /*Word16 size: 8 + 52 + 102 + 51 + 51 + 51 + 51 + 47 = 515 */
58
59
60typedef struct{
61
62  Word16 sfbCnt;
63  Word16 sfbActive;   /* number of sf bands containing energy after lowpass */
64  Word16 *sfbOffset;
65
66  Word32 sfbThresholdQuiet[MAX_SFB_SHORT];
67
68  Word16 maxAllowedIncreaseFactor;   /* preecho control */
69  Word16 minRemainingThresholdFactor;
70
71  Word16 lowpassLine;
72  Word16 sampRateIdx;
73  Word32 clipEnergy;                 /* for level dependend tmn */
74
75  Word16 ratio;
76  Word16 sfbMaskLowFactor[MAX_SFB_SHORT];
77  Word16 sfbMaskHighFactor[MAX_SFB_SHORT];
78
79  Word16 sfbMaskLowFactorSprEn[MAX_SFB_SHORT];
80  Word16 sfbMaskHighFactorSprEn[MAX_SFB_SHORT];
81
82
83  Word16 sfbMinSnr[MAX_SFB_SHORT];       /* minimum snr (formerly known as bmax) */
84
85  TNS_CONFIG tnsConf;
86
87}PSY_CONFIGURATION_SHORT; /*Word16 size: 8 + 16 + 16 + 16 + 16 + 16 + 16 + 16 + 47 = 167 */
88
89
90/* Returns the sample rate index */
91Word32 GetSRIndex(Word32 sampleRate);
92
93
94Word16 InitPsyConfigurationLong(Word32 bitrate,
95                                Word32 samplerate,
96                                Word16 bandwidth,
97                                PSY_CONFIGURATION_LONG *psyConf);
98
99Word16 InitPsyConfigurationShort(Word32 bitrate,
100                                 Word32 samplerate,
101                                 Word16 bandwidth,
102                                 PSY_CONFIGURATION_SHORT *psyConf);
103
104#endif /* _PSY_CONFIGURATION_H */
105
106
107
108