108 lines
3.3 KiB
C
108 lines
3.3 KiB
C
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#ifndef __APP_VOICE_DETECTOR_H__
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#define __APP_VOICE_DETECTOR_H__
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#include "hal_aud.h"
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#include "audioflinger.h"
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#include "voice_detector.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* event of voice detector */
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enum voice_detector_evt {
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VOICE_DET_EVT_IDLE,
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VOICE_DET_EVT_OPEN,
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VOICE_DET_EVT_VAD_START,
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VOICE_DET_EVT_AUD_CAP_START,
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VOICE_DET_EVT_CLOSE,
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};
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/*
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* Initialize voice detector.
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* This function should be called by main thread.
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*/
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void app_voice_detector_init();
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/*
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* Open voice detector specified by a unique id.
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* This function must be callbed firstly.
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* return: 0(success) !0(fail)
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*/
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int app_voice_detector_open(enum voice_detector_id id, enum AUD_VAD_TYPE_T vad_type);
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/*
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* Configure VAD by specified structure conf.
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* This function is optional to be called because of VAD also
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* can be initialized by default parameter.
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* return: 0(success) !0(fail)
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*/
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int app_voice_detector_setup_vad(enum voice_detector_id id,
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struct AUD_VAD_CONFIG_T *conf);
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/*
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* Setup capture(or playback) stream to voice detector.
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* The capture stream will be used to open or start audio device.
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* This function must be called at least once;
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* return: 0(success) !0(fail)
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*/
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int app_voice_detector_setup_stream(enum voice_detector_id id,
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enum AUD_STREAM_T stream_id,
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struct AF_STREAM_CONFIG_T *stream);
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/*
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* Setup callback function to voice detector.
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* voice detector has several callbacks and normally we use func_id to specifiy
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* it's type.
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*
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* parameters:
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* id: voice detector identify number
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* func_id: callback type identify number
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*
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* VOICE_DET_CB_PREVIOUS:
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* This callback will be invoked before any command executed;
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* VOICE_DET_CB_RUN_WAIT:
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* This callback will be invoked while command queue is empty;
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* VOICE_DET_CB_RUN_DONE:
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* This callback will be invoked while one command executed done;
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* VOICE_DET_CB_POST:
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* This callback will be invoked after all commands finished;
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* VOICE_DET_CB_ERROR:
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* This callback will be invoked while one command executed error;
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* VOICE_DET_CB_APP:
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* This callback will be invoked while VAD interrupt comes;
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*
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* func: callback subrotine
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* param: arguments of callback subrotine.
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* return: 0(success) !0(fail)
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*/
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int app_voice_detector_setup_callback(enum voice_detector_id id,
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enum voice_detector_cb_id func_id,
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voice_detector_cb_t func,
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void *param);
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/*
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* Send events to voice detector.
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* This function maybe invoked in any thread.
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* return: 0(success) !0(fail)
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*/
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int app_voice_detector_send_event(enum voice_detector_id id,
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enum voice_detector_evt evt);
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/*
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* Close a voice detector specified by a unique id.
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*/
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void app_voice_detector_close(enum voice_detector_id id);
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/*
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* change a voice detector specified by a unique id to capture
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*/
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void app_voice_detector_capture_start(enum voice_detector_id id);
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/*
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* get vad data info by a unique id.
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*/
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void app_voice_detector_get_vad_data_info(enum voice_detector_id id, struct CODEC_VAD_BUF_INFO_T* vad_buf_info);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __APP_VOICE_DETECTOR_H__ */
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