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 /* Mixer settings */ 38 LVMixer3_2St_FLOAT_st Mixer_Instance; /* Mixer instance */ 39 LVM_UINT16 Output_Shift; /* Correcting gain output shift */ 40 41 } LVCS_BypassMix_t; 42 43 typedef struct { 44 /* Output gain settings, Gain = (Loss/32768) * 2^Shift */ 45 LVM_UINT16 Shift; /* Left shifts required */ 46 LVM_FLOAT Loss; /* Loss required */ 47 LVM_FLOAT UnprocLoss; /* Unprocessed path loss */ 48 } Gain_t; 49 /************************************************************************************/ 50 /* */ 51 /* Function prototypes */ 52 /* */ 53 /************************************************************************************/ 54 55 LVCS_ReturnStatus_en LVCS_BypassMixInit(LVCS_Handle_t hInstance, LVCS_Params_t* pParams); 56 57 LVCS_ReturnStatus_en LVCS_BypassMixer(LVCS_Handle_t hInstance, const LVM_FLOAT* pProcessed, 58 const LVM_FLOAT* unProcessed, LVM_FLOAT* pOutData, 59 LVM_UINT16 NumSamples); 60 61 #endif /* BYPASSMIX_H */ 62