1 /* 2 * Copyright (C) 2020, Fuzhou Rockchip Electronics Co., Ltd. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of Fuzhou Rockchip Electronics Co., Ltd. nor the 14 * names of its contributors may be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 20 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 21 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #ifndef __RKAP_ANR_H__ 31 #define __RKAP_ANR_H__ 32 33 #include "RKAP_Common.h" 34 35 #ifdef __cplusplus 36 extern "C" { 37 #endif 38 39 typedef struct RKAP_ANR_State_S 40 { 41 /* Basic info */ 42 int swSampleRate; /* 8k~48k */ 43 int swFrameLen; /* frame time only 10ms|16ms|20ms */ 44 int enHpfSwitch; /* HighPass Filter Enable */ 45 int enLpfSwitch; /* LowPass Filter Enable */ 46 47 float fPostAddGain; /* post-gain */ 48 float fGmin; /* spectral gain floor,unit:(dB),default:-30dB */ 49 float fNoiseFactor; /* noise suppression factor,default:0.98 */ 50 float fHpfFc; /* High Pass Filter cut-off frequency */ 51 float fLpfFc; /* Low Pass Filter cut-off frequency */ 52 53 } RKAP_ANR_State; 54 55 extern RKAP_Handle RKAP_ANR_Init(RKAP_ANR_State *st); 56 extern void RKAP_ANR_Destroy(RKAP_Handle handle); 57 extern int RKAP_ANR_Process(RKAP_Handle handle, short *pfSigIn, short *pfSigOut); 58 extern int RKAP_ANR_Control(RKAP_Handle handle, int request, void *arg); 59 extern void RKAP_ANR_DumpVersion(void); 60 61 #ifdef __cplusplus 62 } 63 #endif 64 65 #endif /* __RKAP_ANR_H__ */ 66