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 #ifdef BUILD_FLOAT 46 LVMixer3_2St_FLOAT_st Mixer_Instance; /* Mixer instance */ 47 #else 48 LVMixer3_2St_st Mixer_Instance; /* Mixer instance */ 49 #endif 50 LVM_UINT16 Output_Shift; /* Correcting gain output shift */ 51 52 } LVCS_BypassMix_t; 53 54 #ifndef BUILD_FLOAT 55 /* Output gain type */ 56 typedef struct 57 { 58 /* Output gain settings, Gain = (Loss/32768) * 2^Shift */ 59 LVM_UINT16 Shift; /* Left shifts required */ 60 LVM_UINT16 Loss; /* Loss required */ 61 LVM_UINT16 UnprocLoss; /* Unprocessed path loss */ 62 } Gain_t; 63 #else 64 typedef struct 65 { 66 /* Output gain settings, Gain = (Loss/32768) * 2^Shift */ 67 LVM_UINT16 Shift; /* Left shifts required */ 68 LVM_FLOAT Loss; /* Loss required */ 69 LVM_FLOAT UnprocLoss; /* Unprocessed path loss */ 70 } Gain_t; 71 #endif 72 /************************************************************************************/ 73 /* */ 74 /* Function prototypes */ 75 /* */ 76 /************************************************************************************/ 77 78 LVCS_ReturnStatus_en LVCS_BypassMixInit(LVCS_Handle_t hInstance, 79 LVCS_Params_t *pParams); 80 81 #ifndef BUILD_FLOAT 82 LVCS_ReturnStatus_en LVCS_BypassMixer(LVCS_Handle_t hInstance, 83 const LVM_INT16 *pProcessed, 84 const LVM_INT16 *unProcessed, 85 LVM_INT16 *pOutData, 86 LVM_UINT16 NumSamples); 87 #else 88 LVCS_ReturnStatus_en LVCS_BypassMixer(LVCS_Handle_t hInstance, 89 const LVM_FLOAT *pProcessed, 90 const LVM_FLOAT *unProcessed, 91 LVM_FLOAT *pOutData, 92 LVM_UINT16 NumSamples); 93 #endif 94 #ifdef __cplusplus 95 } 96 #endif /* __cplusplus */ 97 98 #endif /* BYPASSMIX_H */ 99
