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 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 /* 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 */ 53 typedef 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 78 LVCS_ReturnStatus_en LVCS_ReverbGeneratorInit(LVCS_Handle_t hInstance, 79 LVCS_Params_t *pParams); 80 81 LVCS_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
