mirror of
https://github.com/espressif/esp-idf.git
synced 2026-04-27 19:13:21 +00:00
Ma Jing Jing
123 lines
3.4 KiB
C
123 lines
3.4 KiB
C
/*
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* SPDX-FileCopyrightText: 2026 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#pragma once
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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 /* __cplusplus */
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typedef struct asrc_dev_t *asrc_soc_handle_t; // ASRC SOC layer handle
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/**
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* @brief Context of the HAL
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*/
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typedef struct asrc_hal_context {
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asrc_soc_handle_t dev; /*<! ASRC peripheral address */
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} asrc_hal_context_t;
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/**
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* @brief Audio information structure for HAL layer
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*/
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typedef struct {
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uint32_t sample_rate; /*!< Audio sample rate in Hz */
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uint8_t channel; /*!< Number of audio channels */
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uint8_t bits_per_sample; /*!< Bits per audio sample */
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} asrc_hal_audio_info_t;
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/**
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* @brief ASRC HAL configuration structure
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*/
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typedef struct asrc_hal_cfg {
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asrc_hal_audio_info_t src_info; /*!< Source audio information */
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asrc_hal_audio_info_t dest_info; /*!< Destination audio information */
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float *weight; /*!< Channel mixing weight array */
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uint8_t weight_len; /*!< Weight array length */
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} asrc_hal_config_t;
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/**
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* @brief Initialize ASRC HAL context and configure hardware
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*
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* @param[in] hal Pointer to ASRC HAL context
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*/
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void asrc_hal_init(asrc_hal_context_t *hal);
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/**
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* @brief Enable or disable ASRC module
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*
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* @param[in] hal Pointer to ASRC HAL context
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* @param[in] enable True to enable, false to disable
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*/
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void asrc_hal_enable_asrc_module(asrc_hal_context_t *hal, bool enable);
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/**
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* @brief Initialize a single ASRC stream
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*
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* @param[in] hal Pointer to ASRC HAL context
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* @param[in] asrc_cfg Pointer to ASRC configuration structure
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* @param[in] asrc_idx ASRC stream index
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*/
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void asrc_hal_init_stream(asrc_hal_context_t *hal, asrc_hal_config_t *asrc_cfg, uint8_t asrc_idx);
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/**
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* @brief Set input sample count for ASRC processing
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*
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* @param[in] hal Pointer to ASRC HAL context
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* @param[in] asrc_idx ASRC stream index
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* @param[in] in_samples_num Number of input samples to process
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*/
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void asrc_hal_set_in_bytes_num(asrc_hal_context_t *hal, uint8_t asrc_idx, uint32_t in_samples_num);
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/**
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* @brief Set expected output sample count for ASRC processing
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*
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* @param[in] hal Pointer to ASRC HAL context
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* @param[in] asrc_idx ASRC stream index
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* @param[in] out_samples_num Expected number of output samples
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*/
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void asrc_hal_set_out_bytes_num(asrc_hal_context_t *hal, uint8_t asrc_idx, uint32_t out_samples_num);
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/**
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* @brief Start ASRC processing
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*
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* @param[in] hal Pointer to ASRC HAL context
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* @param[in] asrc_idx ASRC stream index
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*/
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void asrc_hal_start(asrc_hal_context_t *hal, uint8_t asrc_idx);
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/**
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* @brief Get the number of output data bytes processed
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*
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* @param[in] hal Pointer to ASRC HAL context
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* @param[in] asrc_idx ASRC stream index
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*
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* @return
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* - Number of output data bytes
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*/
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uint32_t asrc_hal_get_out_data_bytes(asrc_hal_context_t *hal, uint8_t asrc_idx);
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/**
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* @brief Deinitialize a single ASRC stream
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*
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* @param[in] hal Pointer to ASRC HAL context
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* @param[in] asrc_idx ASRC stream index
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*/
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void asrc_hal_deinit_stream(asrc_hal_context_t *hal, uint8_t asrc_idx);
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/**
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* @brief Deinitialize ASRC HAL context
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*
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* @param[in] hal Pointer to ASRC HAL context
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*/
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void asrc_hal_deinit(asrc_hal_context_t *hal);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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