86 lines
2.4 KiB
C
86 lines
2.4 KiB
C
/***************************************************************************
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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 All unpublished rights reserved.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 __AUDIO_RESAMPLER_EX_H__
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#define __AUDIO_RESAMPLER_EX_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "plat_types.h"
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#include "hal_aud.h"
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enum RESAMPLE_STATUS_T {
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RESAMPLE_STATUS_OK = 0,
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RESAMPLE_STATUS_ERROR,
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RESAMPLE_STATUS_NO_COEF,
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RESAMPLE_STATUS_NO_COEF_GROUP,
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RESAMPLE_STATUS_BAD_COEF_NUM,
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RESAMPLE_STATUS_BAD_FACTOR,
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RESAMPLE_STATUS_NO_BUF,
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RESAMPLE_STATUS_BUF_MISALIGN,
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RESAMPLE_STATUS_BUF_TOO_SMALL,
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RESAMPLE_STATUS_BAD_ID,
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RESAMPLE_STATUS_OUT_FULL,
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RESAMPLE_STATUS_IN_EMPTY,
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RESAMPLE_STATUS_DONE,
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};
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struct RESAMPLE_COEF_T {
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uint16_t upsample_factor;
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uint16_t downsample_factor;
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uint8_t phase_coef_num;
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uint16_t total_coef_num;
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const int16_t *coef_group;
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};
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struct RESAMPLE_CFG_T {
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enum AUD_CHANNEL_NUM_T chans;
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enum AUD_BITS_T bits;
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float ratio_step;
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const struct RESAMPLE_COEF_T *coef;
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void *buf;
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uint32_t size;
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};
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struct RESAMPLE_IO_BUF_T {
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const void *in;
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uint32_t in_size;
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void *out;
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uint32_t out_size;
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// For cyclic output buffer
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void *out_cyclic_start;
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void *out_cyclic_end;
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};
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typedef void *RESAMPLE_ID;
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uint32_t audio_resample_ex_get_buffer_size(enum AUD_CHANNEL_NUM_T chans, enum AUD_BITS_T bits, uint8_t phase_coef_num);
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enum RESAMPLE_STATUS_T audio_resample_ex_open(const struct RESAMPLE_CFG_T *cfg, RESAMPLE_ID *id_ptr);
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enum RESAMPLE_STATUS_T audio_resample_ex_run(RESAMPLE_ID id, const struct RESAMPLE_IO_BUF_T *io, uint32_t *in_size_ptr, uint32_t *out_size_ptr);
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void audio_resample_ex_close(RESAMPLE_ID id);
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void audio_resample_ex_flush(RESAMPLE_ID id);
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enum RESAMPLE_STATUS_T audio_resample_ex_set_ratio_step(RESAMPLE_ID id, float ratio_step);
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enum RESAMPLE_STATUS_T audio_resample_ex_get_ratio_step(RESAMPLE_ID id, float *ratio_step);
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#ifdef __cplusplus
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}
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#endif
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#endif
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