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 __LVCS_BYPASSMIX_H__
19 #define __LVCS_BYPASSMIX_H__
20 
21 #ifdef __cplusplus
22 extern "C" {
23 #endif /* __cplusplus */
24 
25 
26 /************************************************************************************/
27 /*                                                                                  */
28 /*    Includes                                                                      */
29 /*                                                                                  */
30 /************************************************************************************/
31 
32 #include "LVC_Mixer.h"
33 
34 
35 /************************************************************************************/
36 /*                                                                                  */
37 /*    Structures                                                                    */
38 /*                                                                                  */
39 /************************************************************************************/
40 
41 /* Bypass mixer structure */
42 typedef struct
43 {
44     /* Mixer settings */
45     LVMixer3_2St_st         Mixer_Instance;             /* Mixer instance */
46     LVM_UINT16              Output_Shift;               /* Correcting gain output shift */
47 
48 } LVCS_BypassMix_t;
49 
50 
51 /* Output gain type */
52 typedef struct
53 {
54     /* Output gain settings, Gain = (Loss/32768) * 2^Shift */
55     LVM_UINT16              Shift;                      /* Left shifts required */
56     LVM_UINT16              Loss;                       /* Loss required */
57     LVM_UINT16              UnprocLoss;                 /* Unprocessed path loss */
58 } Gain_t;
59 
60 
61 /************************************************************************************/
62 /*                                                                                    */
63 /*    Function prototypes                                                                */
64 /*                                                                                    */
65 /************************************************************************************/
66 
67 LVCS_ReturnStatus_en LVCS_BypassMixInit(LVCS_Handle_t       hInstance,
68                                            LVCS_Params_t    *pParams);
69 
70 
71 LVCS_ReturnStatus_en LVCS_BypassMixer(LVCS_Handle_t         hInstance,
72                                       const LVM_INT16       *pProcessed,
73                                       const LVM_INT16       *unProcessed,
74                                             LVM_INT16       *pOutData,
75                                             LVM_UINT16      NumSamples);
76 
77 #ifdef __cplusplus
78 }
79 #endif /* __cplusplus */
80 
81 #endif  /* BYPASSMIX_H */
82