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 /************************************************************************************/
22 /*                                                                                  */
23 /*    Includes                                                                      */
24 /*                                                                                  */
25 /************************************************************************************/
26 
27 #include "LVC_Mixer.h"
28 
29 /************************************************************************************/
30 /*                                                                                  */
31 /*    Structures                                                                    */
32 /*                                                                                  */
33 /************************************************************************************/
34 
35 /* Bypass mixer structure */
36 typedef struct
37 {
38     /* Mixer settings */
39     LVMixer3_2St_FLOAT_st   Mixer_Instance;             /* Mixer instance */
40     LVM_UINT16              Output_Shift;               /* Correcting gain output shift */
41 
42 } LVCS_BypassMix_t;
43 
44 typedef struct
45 {
46     /* Output gain settings, Gain = (Loss/32768) * 2^Shift */
47     LVM_UINT16             Shift;                      /* Left shifts required */
48     LVM_FLOAT              Loss;                       /* Loss required */
49     LVM_FLOAT              UnprocLoss;                 /* Unprocessed path loss */
50 } Gain_t;
51 /************************************************************************************/
52 /*                                                                                    */
53 /*    Function prototypes                                                                */
54 /*                                                                                    */
55 /************************************************************************************/
56 
57 LVCS_ReturnStatus_en LVCS_BypassMixInit(LVCS_Handle_t       hInstance,
58                                            LVCS_Params_t    *pParams);
59 
60 LVCS_ReturnStatus_en LVCS_BypassMixer(LVCS_Handle_t         hInstance,
61                                       const LVM_FLOAT       *pProcessed,
62                                       const LVM_FLOAT       *unProcessed,
63                                       LVM_FLOAT       *pOutData,
64                                       LVM_UINT16      NumSamples);
65 
66 #endif  /* BYPASSMIX_H */
67