1 /*
2  * Copyright (C) 2004-2010 NXP Software
3  * Copyright (C) 2010 The Android Open Source Project
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  *      http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17 
18 #ifndef __AGC_H__
19 #define __AGC_H__
20 
21 
22 #ifdef __cplusplus
23 extern "C" {
24 #endif /* __cplusplus */
25 
26 /**********************************************************************************/
27 /*                                                                                */
28 /*    Includes                                                                    */
29 /*                                                                                */
30 /**********************************************************************************/
31 
32 #include "LVM_Types.h"
33 
34 
35 /**********************************************************************************/
36 /*                                                                                */
37 /*    Types                                                                       */
38 /*                                                                                */
39 /**********************************************************************************/
40 
41 typedef struct
42 {
43     LVM_INT32  AGC_Gain;                        /* The current AGC gain */
44     LVM_INT32  AGC_MaxGain;                     /* The maximum AGC gain */
45     LVM_INT32  Volume;                          /* The current volume setting */
46     LVM_INT32  Target;                          /* The target volume setting */
47     LVM_INT32  AGC_Target;                      /* AGC target level */
48     LVM_INT16  AGC_Attack;                      /* AGC attack scaler */
49     LVM_INT16  AGC_Decay;                       /* AGC decay scaler */
50     LVM_INT16  AGC_GainShift;                   /* The gain shift */
51     LVM_INT16  VolumeShift;                     /* Volume shift scaling */
52     LVM_INT16  VolumeTC;                        /* Volume update time constant */
53 
54 } AGC_MIX_VOL_2St1Mon_D32_t;
55 
56 
57 /**********************************************************************************/
58 /*                                                                                */
59 /*    Function Prototypes                                                              */
60 /*                                                                                */
61 /**********************************************************************************/
62 
63 void AGC_MIX_VOL_2St1Mon_D32_WRA(AGC_MIX_VOL_2St1Mon_D32_t  *pInstance,     /* Instance pointer */
64                                  const LVM_INT32            *pStSrc,        /* Stereo source */
65                                  const LVM_INT32            *pMonoSrc,      /* Mono source */
66                                  LVM_INT32                  *pDst,          /* Stereo destination */
67                                  LVM_UINT16                 n);             /* Number of samples */
68 
69 #ifdef __cplusplus
70 }
71 #endif /* __cplusplus */
72 
73 
74 #endif  /* __AGC_H__ */
75 
76 
77 
78 
79 
80 
81 
82 
83 
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