139 lines
6.4 KiB
C
139 lines
6.4 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) 2018 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 "shared-module/audioio/__init__.h"
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#include "py/obj.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-module/audiocore/RawSample.h"
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#include "shared-module/audiocore/WaveFile.h"
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#include "shared-bindings/audiomixer/Mixer.h"
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#include "shared-module/audiomixer/Mixer.h"
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uint32_t audiosample_sample_rate(mp_obj_t sample_obj) {
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if (MP_OBJ_IS_TYPE(sample_obj, &audioio_rawsample_type)) {
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audioio_rawsample_obj_t* sample = MP_OBJ_TO_PTR(sample_obj);
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return sample->sample_rate;
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} else if (MP_OBJ_IS_TYPE(sample_obj, &audioio_wavefile_type)) {
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audioio_wavefile_obj_t* file = MP_OBJ_TO_PTR(sample_obj);
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return file->sample_rate;
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#if CIRCUITPY_AUDIOMIXER
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} else if (MP_OBJ_IS_TYPE(sample_obj, &audiomixer_mixer_type)) {
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audiomixer_mixer_obj_t* mixer = MP_OBJ_TO_PTR(sample_obj);
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return mixer->sample_rate;
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#endif
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}
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return 16000;
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}
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uint8_t audiosample_bits_per_sample(mp_obj_t sample_obj) {
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if (MP_OBJ_IS_TYPE(sample_obj, &audioio_rawsample_type)) {
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audioio_rawsample_obj_t* sample = MP_OBJ_TO_PTR(sample_obj);
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return sample->bits_per_sample;
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} else if (MP_OBJ_IS_TYPE(sample_obj, &audioio_wavefile_type)) {
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audioio_wavefile_obj_t* file = MP_OBJ_TO_PTR(sample_obj);
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return file->bits_per_sample;
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#if CIRCUITPY_AUDIOMIXER
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} else if (MP_OBJ_IS_TYPE(sample_obj, &audiomixer_mixer_type)) {
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audiomixer_mixer_obj_t* mixer = MP_OBJ_TO_PTR(sample_obj);
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return mixer->bits_per_sample;
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#endif
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}
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return 8;
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}
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uint8_t audiosample_channel_count(mp_obj_t sample_obj) {
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if (MP_OBJ_IS_TYPE(sample_obj, &audioio_rawsample_type)) {
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audioio_rawsample_obj_t* sample = MP_OBJ_TO_PTR(sample_obj);
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return sample->channel_count;
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} else if (MP_OBJ_IS_TYPE(sample_obj, &audioio_wavefile_type)) {
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audioio_wavefile_obj_t* file = MP_OBJ_TO_PTR(sample_obj);
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return file->channel_count;
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#if CIRCUITPY_AUDIOMIXER
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} else if (MP_OBJ_IS_TYPE(sample_obj, &audiomixer_mixer_type)) {
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audiomixer_mixer_obj_t* mixer = MP_OBJ_TO_PTR(sample_obj);
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return mixer->channel_count;
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#endif
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}
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return 1;
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}
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void audiosample_reset_buffer(mp_obj_t sample_obj, bool single_channel, uint8_t audio_channel) {
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if (MP_OBJ_IS_TYPE(sample_obj, &audioio_rawsample_type)) {
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audioio_rawsample_obj_t* sample = MP_OBJ_TO_PTR(sample_obj);
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audioio_rawsample_reset_buffer(sample, single_channel, audio_channel);
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} else if (MP_OBJ_IS_TYPE(sample_obj, &audioio_wavefile_type)) {
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audioio_wavefile_obj_t* file = MP_OBJ_TO_PTR(sample_obj);
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audioio_wavefile_reset_buffer(file, single_channel, audio_channel);
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#if CIRCUITPY_AUDIOMIXER
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} else if (MP_OBJ_IS_TYPE(sample_obj, &audiomixer_mixer_type)) {
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audiomixer_mixer_obj_t* file = MP_OBJ_TO_PTR(sample_obj);
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audiomixer_mixer_reset_buffer(file, single_channel, audio_channel);
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#endif
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}
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}
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audioio_get_buffer_result_t audiosample_get_buffer(mp_obj_t sample_obj,
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bool single_channel,
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uint8_t channel,
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uint8_t** buffer, uint32_t* buffer_length) {
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if (MP_OBJ_IS_TYPE(sample_obj, &audioio_rawsample_type)) {
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audioio_rawsample_obj_t* sample = MP_OBJ_TO_PTR(sample_obj);
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return audioio_rawsample_get_buffer(sample, single_channel, channel, buffer, buffer_length);
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} else if (MP_OBJ_IS_TYPE(sample_obj, &audioio_wavefile_type)) {
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audioio_wavefile_obj_t* file = MP_OBJ_TO_PTR(sample_obj);
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return audioio_wavefile_get_buffer(file, single_channel, channel, buffer, buffer_length);
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#if CIRCUITPY_AUDIOMIXER
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} else if (MP_OBJ_IS_TYPE(sample_obj, &audiomixer_mixer_type)) {
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audiomixer_mixer_obj_t* file = MP_OBJ_TO_PTR(sample_obj);
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return audiomixer_mixer_get_buffer(file, single_channel, channel, buffer, buffer_length);
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#endif
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}
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return GET_BUFFER_DONE;
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}
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void audiosample_get_buffer_structure(mp_obj_t sample_obj, bool single_channel,
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bool* single_buffer, bool* samples_signed,
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uint32_t* max_buffer_length, uint8_t* spacing) {
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if (MP_OBJ_IS_TYPE(sample_obj, &audioio_rawsample_type)) {
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audioio_rawsample_obj_t* sample = MP_OBJ_TO_PTR(sample_obj);
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audioio_rawsample_get_buffer_structure(sample, single_channel, single_buffer,
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samples_signed, max_buffer_length, spacing);
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} else if (MP_OBJ_IS_TYPE(sample_obj, &audioio_wavefile_type)) {
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audioio_wavefile_obj_t* file = MP_OBJ_TO_PTR(sample_obj);
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audioio_wavefile_get_buffer_structure(file, single_channel, single_buffer, samples_signed,
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max_buffer_length, spacing);
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#if CIRCUITPY_AUDIOMIXER
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} else if (MP_OBJ_IS_TYPE(sample_obj, &audiomixer_mixer_type)) {
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audiomixer_mixer_obj_t* file = MP_OBJ_TO_PTR(sample_obj);
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audiomixer_mixer_get_buffer_structure(file, single_channel, single_buffer, samples_signed,
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max_buffer_length, spacing);
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#endif
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}
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}
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