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48 lines
1.4 KiB
C
48 lines
1.4 KiB
C
#ifndef _ESP_AFE_DOA_H_
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#define _ESP_AFE_DOA_H_
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#include "esp_doa.h"
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#include "esp_afe_config.h"
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct {
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doa_handle_t *doa_handle;
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afe_pcm_config_t pcm_config;
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int16_t *leftdata;
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int16_t *rightdata;
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int frame_size;
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} afe_doa_handle_t;
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/**
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* @brief Initialize SRP-PHAT processor
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* @param input_format The input format
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* @param fs Sampling rate (Hz), e.g., 16000
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* @param resolution Angular search resolution (degrees), e.g., 20
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* @param d_mics Microphone spacing (meters), e.g., 0.06
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* @param input_timedate_samples input timedate samples, e.g., 1024
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* @return Initialized doa_handle_t object pointer, Recommend using the above configuration for better performance
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*/
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afe_doa_handle_t *afe_doa_create(const char *input_format, int fs, float resolution, float d_mics, int input_timedate_samples);
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/**
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* @brief Process audio frame for direction estimation
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* @param handle doa_handle_t instance pointer
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* @param indata Input audio data, format is define by input_format.
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* @return Estimated sound direction in degrees, e.g., 0-180
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*/
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float afe_doa_process(afe_doa_handle_t *handle, const int16_t *indata);
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/**
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* @brief Release all allocated resources
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* @param doa doa_handle_t instance pointer to be freed
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*/
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void afe_doa_destroy(afe_doa_handle_t *handle);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _ESP_AFE_DOA_H_ */ |