1 /* 2 * Copyright (C) 2015-2020 Alibaba Group Holding Limited 3 */ 4 #ifndef __AUDIO_PROCESS_H__ 5 #define __AUDIO_PROCESS_H__ 6 7 #ifdef __cplusplus 8 extern "C" { 9 #endif 10 11 #include "stdint.h" 12 #include "iir_process.h" 13 #include "fir_process.h" 14 15 typedef enum { 16 AUDIO_EQ_TYPE_SW_IIR = 0, 17 AUDIO_EQ_TYPE_HW_FIR, 18 AUDIO_EQ_TYPE_HW_DAC_IIR, 19 AUDIO_EQ_TYPE_HW_IIR, 20 } AUDIO_EQ_TYPE_T; 21 22 int audio_process_init(void); 23 int audio_process_open(enum AUD_SAMPRATE_T sample_rate, enum AUD_BITS_T sample_bits,enum AUD_CHANNEL_NUM_T ch_num, int32_t frame_size, void *eq_buf, uint32_t len); 24 int audio_process_run(uint8_t *buf, uint32_t len); 25 int audio_process_close(void); 26 27 int audio_eq_set_cfg(const FIR_CFG_T *fir_cfg,const IIR_CFG_T *iir_cfg,AUDIO_EQ_TYPE_T audio_eq_type); 28 29 #ifdef USB_EQ_TUNING 30 void audio_eq_usb_eq_update (void); 31 #endif 32 33 #ifdef __cplusplus 34 } 35 #endif 36 37 #endif 38