100 lines
3.9 KiB
C
100 lines
3.9 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <stdint.h>
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#include "py/obj.h"
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#include "py/runtime.h"
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#include "shared-bindings/audiocore/__init__.h"
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#include "shared-bindings/audiocore/RawSample.h"
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#include "shared-bindings/audiocore/WaveFile.h"
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// #include "shared-bindings/audiomixer/Mixer.h"
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//| """Support for audio samples"""
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#if CIRCUITPY_AUDIOCORE_DEBUG
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// (no docstrings so that the debug functions are not shown on docs.circuitpython.org)
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STATIC mp_obj_t audiocore_get_buffer(mp_obj_t sample_in) {
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uint8_t *buffer = NULL;
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uint32_t buffer_length = 0;
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audioio_get_buffer_result_t gbr = audiosample_get_buffer(sample_in, false, 0, &buffer, &buffer_length);
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mp_obj_t result[2] = {mp_obj_new_int_from_uint(gbr), mp_const_none};
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if (gbr != GET_BUFFER_ERROR) {
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// copies the data because the gc semantics of get_buffer are unclear
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result[1] = mp_obj_new_bytes(buffer, buffer_length);
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}
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return mp_obj_new_tuple(2, result);
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(audiocore_get_buffer_obj, audiocore_get_buffer);
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STATIC mp_obj_t audiocore_get_structure(mp_obj_t sample_in) {
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bool single_buffer, samples_signed;
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uint32_t max_buffer_length;
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uint8_t spacing;
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audiosample_get_buffer_structure(sample_in, false, &single_buffer, &samples_signed, &max_buffer_length, &spacing);
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mp_obj_t result[4] = {
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mp_obj_new_int_from_uint(single_buffer),
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mp_obj_new_int_from_uint(samples_signed),
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mp_obj_new_int_from_uint(max_buffer_length),
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mp_obj_new_int_from_uint(spacing),
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};
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return mp_obj_new_tuple(4, result);
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(audiocore_get_structure_obj, audiocore_get_structure);
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STATIC mp_obj_t audiocore_reset_buffer(mp_obj_t sample_in) {
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audiosample_reset_buffer(sample_in, false, 0);
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(audiocore_reset_buffer_obj, audiocore_reset_buffer);
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#endif
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STATIC const mp_rom_map_elem_t audiocore_module_globals_table[] = {
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{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_audiocore) },
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{ MP_ROM_QSTR(MP_QSTR_RawSample), MP_ROM_PTR(&audioio_rawsample_type) },
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{ MP_ROM_QSTR(MP_QSTR_WaveFile), MP_ROM_PTR(&audioio_wavefile_type) },
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#if CIRCUITPY_AUDIOCORE_DEBUG
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{ MP_ROM_QSTR(MP_QSTR_get_buffer), MP_ROM_PTR(&audiocore_get_buffer_obj) },
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{ MP_ROM_QSTR(MP_QSTR_reset_buffer), MP_ROM_PTR(&audiocore_reset_buffer_obj) },
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{ MP_ROM_QSTR(MP_QSTR_get_structure), MP_ROM_PTR(&audiocore_get_structure_obj) },
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#endif
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};
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STATIC MP_DEFINE_CONST_DICT(audiocore_module_globals, audiocore_module_globals_table);
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const mp_obj_module_t audiocore_module = {
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.base = { &mp_type_module },
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.globals = (mp_obj_dict_t *)&audiocore_module_globals,
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};
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MP_REGISTER_MODULE(MP_QSTR_audiocore, audiocore_module, CIRCUITPY_AUDIOCORE);
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