76 lines
2.1 KiB
C
76 lines
2.1 KiB
C
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/***************************************************************************
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*
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* Copyright 2015-2019 BES.
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* All rights reserved. All unpublished rights reserved.
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*
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* No part of this work may be used or reproduced in any form or by any
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* means, or stored in a database or retrieval system, without prior written
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* permission of BES.
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*
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* Use of this work is governed by a license granted by BES.
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* This work contains confidential and proprietary information of
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* BES. which is protected by copyright, trade secret,
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* trademark and other intellectual property rights.
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*
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****************************************************************************/
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#ifndef ECHO_CANCELLER_H
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#define ECHO_CANCELLER_H
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#include <stdint.h>
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#include <stdbool.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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{
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int32_t bypass;
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int32_t hpf_enabled;
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int32_t af_enabled;
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int32_t nlp_enabled;
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int32_t clip_enabled;
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int32_t stsupp_enabled;
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int32_t ns_enabled;
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int32_t cng_enabled;
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// af config
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int32_t blocks;
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int32_t delay;
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// nlp config
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float min_ovrd;
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float target_supp;
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// ns config
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float noise_supp;
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// cng config
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int32_t cng_type; // 0 - white noise, 1 - pink noise
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float cng_level;
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// clip
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float clip_threshold;
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int32_t banks;
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} Ec2FloatConfig;
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struct Ec2FloatState_;
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typedef struct Ec2FloatState_ Ec2FloatState;
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Ec2FloatState *ec2float_create(int sample_rate, int frame_size, bool cp, const Ec2FloatConfig *cfg);
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int32_t ec2float_destroy(Ec2FloatState *st);
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int32_t ec2float_set_config(Ec2FloatState *st, const Ec2FloatConfig *cfg, bool cp);
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int32_t ec2float_stereo(Ec2FloatState *st, int16_t *pcm_in, int16_t *pcm_ref1, int16_t *pcm_ref2, int32_t pcm_len, int16_t *pcm_out);
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int32_t ec2float_process(Ec2FloatState *st, int16_t *pcm_in, int16_t *pcm_ref, int32_t pcm_len, int16_t *pcm_out);
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int32_t ec2float_set_external_vad(Ec2FloatState *st, bool vad);
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float ec2float_get_required_mips(Ec2FloatState *st);
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float *ec2float_get_fir_filter_coeffs(Ec2FloatState *st);
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#ifdef __cplusplus
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}
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#endif
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#endif
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