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_REVERBGENERATOR_H__ 19#define __LVCS_REVERBGENERATOR_H__ 20 21#ifdef __cplusplus 22extern "C" { 23#endif /* __cplusplus */ 24 25 26/************************************************************************************/ 27/* */ 28/* Includes */ 29/* */ 30/************************************************************************************/ 31 32#include "LVC_Mixer.h" 33 34 35/************************************************************************************/ 36/* */ 37/* Defines */ 38/* */ 39/************************************************************************************/ 40 41#define HEADPHONEGAINPROC LVCS_HEADPHONE_PROCGAIN 42#define HEADPHONEGAINUNPROC LVCS_HEADPHONE_UNPROCGAIN 43 44 45/************************************************************************************/ 46/* */ 47/* Structures */ 48/* */ 49/************************************************************************************/ 50 51 52/* Reverberation module structure */ 53typedef struct 54{ 55 56 /* Stereo delay */ 57 LVM_INT16 DelaySize; 58 LVM_INT16 DelayOffset; 59 LVM_INT16 ProcGain; 60 LVM_INT16 UnprocGain; 61 LVM_INT16 StereoSamples[2*LVCS_STEREODELAY_CS_48KHZ]; 62 63 /* Reverb Level */ 64 LVM_INT16 ReverbLevel; 65 66 /* Filter */ 67 void (*pBiquadCallBack) (Biquad_Instance_t*, LVM_INT16*, LVM_INT16*, LVM_INT16); 68 69} LVCS_ReverbGenerator_t; 70 71 72/************************************************************************************/ 73/* */ 74/* Function prototypes */ 75/* */ 76/************************************************************************************/ 77 78LVCS_ReturnStatus_en LVCS_ReverbGeneratorInit(LVCS_Handle_t hInstance, 79 LVCS_Params_t *pParams); 80 81LVCS_ReturnStatus_en LVCS_ReverbGenerator(LVCS_Handle_t hInstance, 82 const LVM_INT16 *pInput, 83 LVM_INT16 *pOutput, 84 LVM_UINT16 NumSamples); 85 86#ifdef __cplusplus 87} 88#endif /* __cplusplus */ 89 90#endif /* REVERB_H */ 91