1 /*
2  * Copyright (C) 2015-2020 Alibaba Group Holding Limited
3  */
4 #ifndef __SPEECH_NS_H__
5 #define __SPEECH_NS_H__
6 
7 #include <stdint.h>
8 
9 #ifdef __cplusplus
10 extern "C" {
11 #endif
12 
13 #define SPEECH_NS_SET_AEC_STATE         (0)
14 #define SPEECH_NS_SET_AEC_SUPPRESS      (1)
15 
16 typedef struct {
17     int32_t     bypass;
18     float       denoise_dB;
19 } SpeechNsConfig;
20 
21 struct SpeechNsState_;
22 
23 typedef struct SpeechNsState_ SpeechNsState;
24 
25 // Creat a instance from speech_ns module/class
26 // Common value include: sample rate, frame size and so on.
27 SpeechNsState *speech_ns_create(int32_t sample_rate, int32_t frame_size, const SpeechNsConfig *cfg);
28 
29 // Destory a speech ns instance
30 int32_t speech_ns_destroy(SpeechNsState *st);
31 
32 // Just use modify instance configure
33 int32_t speech_ns_set_config(SpeechNsState *st, const SpeechNsConfig *cfg);
34 
35 // Get/set some value or enable/disable some function
36 int32_t speech_ns_ctl(SpeechNsState *st, int32_t ctl, void *ptr);
37 
38 // Process speech stream
39 int32_t speech_ns_process(SpeechNsState *st, int16_t *pcm_buf, int32_t pcm_len);
40 
41 // Debug speech_ns instance
42 int32_t speech_ns_dump(SpeechNsState *st);
43 
44 #ifdef __cplusplus
45 }
46 #endif
47 
48 #endif
49