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_STEREOENHANCER_H__ 19 #define __LVCS_STEREOENHANCER_H__ 20 21 /************************************************************************************/ 22 /* */ 23 /* Includes */ 24 /* */ 25 /************************************************************************************/ 26 27 #include "Filters.h" /* Filter definitions */ 28 #include "LVCS_Headphone_Coeffs.h" /* Headphone coefficients */ 29 #include "BIQUAD.h" 30 31 /************************************************************************************/ 32 /* */ 33 /* Structures */ 34 /* */ 35 /************************************************************************************/ 36 37 /* Stereo enhancer structure */ 38 typedef struct { 39 LVM_FLOAT MidGain; /* Middle gain in mobile speaker mode */ 40 } LVCS_StereoEnhancer_t; 41 42 /************************************************************************************/ 43 /* */ 44 /* Function prototypes */ 45 /* */ 46 /************************************************************************************/ 47 48 LVCS_ReturnStatus_en LVCS_SEnhancerInit(LVCS_Handle_t hInstance, LVCS_Params_t* pParams); 49 50 LVCS_ReturnStatus_en LVCS_StereoEnhancer(LVCS_Handle_t hInstance, const LVM_FLOAT* pInData, 51 LVM_FLOAT* pOutData, LVM_UINT16 NumSamples); 52 53 #endif /* STEREOENHANCE_H */ 54