54 lines
1.3 KiB
C
54 lines
1.3 KiB
C
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#ifndef SPEECH_FIR_CALIBRATION_H
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#define SPEECH_FIR_CALIBRATION_H
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#include "fftfilt.h"
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// i.e. only support 4 channels
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#define SPEECH_FIR_CALIB_MAX_NUM (3)
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typedef struct
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{
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float *filter;
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int filter_length;
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} CalibChannelConfig;
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typedef struct
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{
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int bypass;
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int mic_num;
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float delay; // fraction delay for main mic
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CalibChannelConfig calib[SPEECH_FIR_CALIB_MAX_NUM];
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} SpeechFirCalibConfig;
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typedef struct SpeechFirCalibState_ SpeechFirCalibState;
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#define CONSTRUCT_FUNC_NAME_A(p, c, m) p ## _ ## c ## _ ## m
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#define CONSTRUCT_FUNC_NAME(p, c, m) CONSTRUCT_FUNC_NAME_A(p, c, m)
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#ifndef FIR_CALIB_IMPL
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#if defined(VQE_SIMULATE)
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#define FIR_CALIB_IMPL fir
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#else
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#define FIR_CALIB_IMPL hwfir
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#endif
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#endif
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#define speech_fir_calib_init CONSTRUCT_FUNC_NAME(speech, FIR_CALIB_IMPL, calib_init)
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#define speech_fir_calib_destroy CONSTRUCT_FUNC_NAME(speech, FIR_CALIB_IMPL, calib_destroy)
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#define speech_fir_calib_process CONSTRUCT_FUNC_NAME(speech, FIR_CALIB_IMPL, calib_process)
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#ifdef __cplusplus
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extern "C" {
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#endif
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SpeechFirCalibState *speech_fir_calib_init(int32_t sample_rate, int32_t frame_size, const SpeechFirCalibConfig *config);
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void speech_fir_calib_destroy(SpeechFirCalibState *st);
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void speech_fir_calib_process(SpeechFirCalibState *st, int16_t *buf, int32_t frame_size);
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#ifdef __cplusplus
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}
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#endif
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#endif
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