199 lines
6.1 KiB
C
199 lines
6.1 KiB
C
#ifndef __VOICE_DETECTOR_H__
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#define __VOICE_DETECTOR_H__
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#include "hal_aud.h"
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#include "audioflinger.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* identify number of voice detector */
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enum voice_detector_id {
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VOICE_DETECTOR_ID_0,
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VOICE_DETECTOR_QTY,
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};
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#if defined(CHIP_BEST2300P)
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#define VAD_BUFFER_LEN 8192
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#else
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#define VAD_BUFFER_LEN 2048
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#endif
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/* commands of voice detector */
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enum voice_detector_cmd {
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VOICE_DET_CMD_IDLE,
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VOICE_DET_CMD_EXIT,
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VOICE_DET_CMD_VAD_OPEN,
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VOICE_DET_CMD_VAD_START,
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VOICE_DET_CMD_VAD_STOP,
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VOICE_DET_CMD_VAD_CLOSE,
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VOICE_DET_CMD_AUD_CAP_START,
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VOICE_DET_CMD_AUD_CAP_STOP,
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VOICE_DET_CMD_AUD_CAP_OPEN,
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VOICE_DET_CMD_AUD_CAP_CLOSE,
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VOICE_DET_CMD_SYS_CLK_32K,
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VOICE_DET_CMD_SYS_CLK_26M,
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VOICE_DET_CMD_SYS_CLK_52M,
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VOICE_DET_CMD_SYS_CLK_104M,
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};
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/* state of voice detector */
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enum voice_detector_state {
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VOICE_DET_STATE_IDLE = VOICE_DET_CMD_IDLE,
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VOICE_DET_STATE_EXIT = VOICE_DET_CMD_EXIT,
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VOICE_DET_STATE_VAD_OPEN = VOICE_DET_CMD_VAD_OPEN,
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VOICE_DET_STATE_VAD_START = VOICE_DET_CMD_VAD_START,
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VOICE_DET_STATE_VAD_STOP = VOICE_DET_CMD_VAD_STOP,
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VOICE_DET_STATE_VAD_CLOSE = VOICE_DET_CMD_VAD_CLOSE,
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VOICE_DET_STATE_AUD_CAP_START = VOICE_DET_CMD_AUD_CAP_START,
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VOICE_DET_STATE_AUD_CAP_STOP = VOICE_DET_CMD_AUD_CAP_STOP,
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VOICE_DET_STATE_AUD_CAP_OPEN = VOICE_DET_CMD_AUD_CAP_OPEN,
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VOICE_DET_STATE_AUD_CAP_CLOSE = VOICE_DET_CMD_AUD_CAP_CLOSE,
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VOICE_DET_STATE_SYS_CLK_32K = VOICE_DET_CMD_SYS_CLK_32K,
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VOICE_DET_STATE_SYS_CLK_26M = VOICE_DET_CMD_SYS_CLK_26M,
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VOICE_DET_STATE_SYS_CLK_52M = VOICE_DET_CMD_SYS_CLK_52M,
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VOICE_DET_STATE_SYS_CLK_104M = VOICE_DET_CMD_SYS_CLK_104M,
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};
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/* running mode of voice detector */
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enum voice_detector_mode {
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VOICE_DET_MODE_ONESHOT,
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VOICE_DET_MODE_EXEC_CMD,
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VOICE_DET_MODE_LOOP,
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};
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/* callback type of voice detector */
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enum voice_detector_cb_id {
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VOICE_DET_CB_PREVIOUS,
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VOICE_DET_CB_RUN_WAIT,
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VOICE_DET_CB_RUN_DONE,
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VOICE_DET_CB_POST,
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VOICE_DET_CB_ERROR,
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VOICE_DET_CB_APP,
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VOICE_DET_FIND_APP,
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VOICE_DET_NOT_FIND_APP,
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VOICE_DET_CB_QTY,
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};
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/* callback function definition */
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typedef void (*voice_detector_cb_t)(int current_state, void *arguments);
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/* VAD default parameters */
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#define VAD_DEFAULT_UDC 0x1//0xa
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#define VAD_DEFAULT_UPRE 0x4
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#define VAD_DEFAULT_SENSOR_FRAME_LEN 8 // 1.6K sample rate
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#define VAD_DEFAULT_MIC_FRAME_LEN 0x50 // 16K sample rate
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#define VAD_DEFAULT_MVAD 0x7
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#define VAD_DEFAULT_DIG_MODE 0x1
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#define VAD_DEFAULT_PRE_GAIN 0x4
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#define VAD_DEFAULT_STH 0x10
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#define VAD_DEFAULT_DC_BYPASS 0x0
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#define VAD_DEFAULT_FRAME_TH0 0x32
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#define VAD_DEFAULT_FRAME_TH1 0x1f4
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#define VAD_DEFAULT_FRAME_TH2 0x1388
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#define VAD_DEFAULT_RANGE0 0xf
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#define VAD_DEFAULT_RANGE1 0x32
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#define VAD_DEFAULT_RANGE2 0x96
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#define VAD_DEFAULT_RANGE3 0x12c
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#define VAD_DEFAULT_PSD_TH0 0x0
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#define VAD_DEFAULT_PSD_TH1 0x07ffffff
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/*
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* open voice detector specified by a unique id
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* must be callbed firstly
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* return: 0(success) !0(fail)
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*/
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int 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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* Optional be called because of voice detector will initial vad by default parameter
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* return: 0(success) !0(fail)
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*/
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int voice_detector_setup_vad(enum voice_detector_id id, struct AUD_VAD_CONFIG_T *conf);
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/*
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* setup capture(or playback) stream to voice detector. The capture stream will
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* be used to open or start audio device.
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* must be called before voice_detector_run();
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* return: 0(success) !0(fail)
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*/
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int voice_detector_setup_stream(enum voice_detector_id id,
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enum AUD_STREAM_T stream_id, struct AF_STREAM_CONFIG_T *stream);
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/*
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* setup callback function to voice detector. This callback function will be called
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* when voice_detector_run() starts.
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* parameters:
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* func_id: callback type id
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* func: callback fuction
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* param: the arguments of callback function.
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* return: 0(success) !0(fail)
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*/
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int voice_detector_setup_callback(enum voice_detector_id id,
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enum voice_detector_cb_id func_id, voice_detector_cb_t func, void *param);
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/*
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* query the status of voice detector. Before send any command to voice detector
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* by invoke voice_detector_send_cmd(), the status should be queried by this
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* function.
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* return: the state of voice detector
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*/
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enum voice_detector_state voice_detector_query_status(enum voice_detector_id id);
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/*
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* receive data from voice detector's VAD buffer.
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* return: The number of bytes received from VAD private buffer
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*/
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int voice_detector_recv_vad_data(enum voice_detector_id id,
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uint8_t *pbuf, uint32_t buf_size);
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/*
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* send commands to voice detector. These commands will be saved in a queue
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* before they are executed exactly.
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* return: 0(success) !0(fail)
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*/
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int voice_detector_send_cmd(enum voice_detector_id id, enum voice_detector_cmd cmd);
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/*
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* send commands array to voice detector. These commands will be saved in a queue
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* before they are executed exactly.
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* return: 0(success) !0(fail)
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*/
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int voice_detector_send_cmd_array(enum voice_detector_id id, int *cmd_array, int num);
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int voice_detector_enhance_perform(enum voice_detector_id id);
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/*
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* This function is a special subrotine which should be invoked by a thread
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* It will execute these commands stored in a queue.
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* parameters:
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* id: voice detector identify number
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* continous:
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* 2: This function will not return until the VOICE_DET_EXIT_CMD be sent
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* 1: This function will not return until the cmd queue is empty
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* 0: This function just execute only once.
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* return: 0(success) !0(error)
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*/
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int voice_detector_run(enum voice_detector_id id, int continous);
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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 voice_detector_close(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 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 VD_TEST
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void voice_detector_test(void);
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif
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