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circuitpython/shared-module/audiocore/__init__.h

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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2018 Dan Halbert for Adafruit Industries
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef MICROPY_INCLUDED_SHARED_MODULE_AUDIOCORE__INIT__H
#define MICROPY_INCLUDED_SHARED_MODULE_AUDIOCORE__INIT__H
#include <stdbool.h>
#include <stdint.h>
#include "py/obj.h"
#include "py/proto.h"
typedef enum {
GET_BUFFER_DONE, // No more data to read
GET_BUFFER_MORE_DATA, // More data to read.
GET_BUFFER_ERROR, // Error while reading data.
} audioio_get_buffer_result_t;
typedef uint32_t (*audiosample_sample_rate_fun)(mp_obj_t);
typedef uint8_t (*audiosample_bits_per_sample_fun)(mp_obj_t);
typedef uint8_t (*audiosample_channel_count_fun)(mp_obj_t);
typedef void (*audiosample_reset_buffer_fun)(mp_obj_t,
bool single_channel, uint8_t audio_channel);
typedef audioio_get_buffer_result_t (*audiosample_get_buffer_fun)(mp_obj_t,
bool single_channel, uint8_t channel, uint8_t** buffer,
uint32_t* buffer_length);
typedef void (*audiosample_get_buffer_structure_fun)(mp_obj_t,
bool single_channel, bool* single_buffer,
bool* samples_signed, uint32_t *max_buffer_length,
uint8_t* spacing);
typedef struct _audiosample_p_t {
MP_PROTOCOL_HEAD // MP_QSTR_protocol_audiosample
audiosample_sample_rate_fun sample_rate;
audiosample_bits_per_sample_fun bits_per_sample;
audiosample_channel_count_fun channel_count;
audiosample_reset_buffer_fun reset_buffer;
audiosample_get_buffer_fun get_buffer;
audiosample_get_buffer_structure_fun get_buffer_structure;
} audiosample_p_t;
uint32_t audiosample_sample_rate(mp_obj_t sample_obj);
uint8_t audiosample_bits_per_sample(mp_obj_t sample_obj);
uint8_t audiosample_channel_count(mp_obj_t sample_obj);
void audiosample_reset_buffer(mp_obj_t sample_obj, bool single_channel, uint8_t audio_channel);
audioio_get_buffer_result_t audiosample_get_buffer(mp_obj_t sample_obj,
bool single_channel,
uint8_t channel,
uint8_t** buffer, uint32_t* buffer_length);
void audiosample_get_buffer_structure(mp_obj_t sample_obj, bool single_channel,
bool* single_buffer, bool* samples_signed,
uint32_t* max_buffer_length, uint8_t* spacing);
#endif // MICROPY_INCLUDED_SHARED_MODULE_AUDIOCORE__INIT__H