179 lines
6.9 KiB
C
179 lines
6.9 KiB
C
/*
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* This file is part of the Micro Python 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 DeanM 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-bindings/audiocore/Mixer.h"
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#include "shared-bindings/audiocore/MixerVoice.h"
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#include <stdint.h>
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#include "lib/utils/context_manager_helpers.h"
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#include "py/binary.h"
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#include "py/objproperty.h"
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#include "py/runtime.h"
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#include "shared-bindings/microcontroller/Pin.h"
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#include "shared-bindings/audiocore/RawSample.h"
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#include "shared-bindings/util.h"
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#include "supervisor/shared/translate.h"
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//| .. currentmodule:: audiocore
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//|
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//| :class:`MixerVoice` -- Voice objects used with Mixer
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//| =====================================================
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//|
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//| Used to access and control samples with `audiocore.Mixer`.
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//|
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//| .. class:: MixerVoice()
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//|
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//| MixerVoice instance object(s) created by `audiocore.Mixer`.
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//|
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// TODO: support mono or stereo voices
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STATIC mp_obj_t audioio_mixervoice_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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audioio_mixervoice_obj_t *self = m_new_obj(audioio_mixervoice_obj_t);
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self->base.type = &audioio_mixervoice_type;
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common_hal_audioio_mixervoice_construct(self);
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return MP_OBJ_FROM_PTR(self);
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}
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//| .. method:: play(sample, *, loop=False)
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//|
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//| Plays the sample once when ``loop=False``, and continuously when ``loop=True``.
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//| Does not block. Use `playing` to block.
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//|
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//| Sample must be an `audiocore.WaveFile`, `audiocore.Mixer` or `audiocore.RawSample`.
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//|
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//| The sample must match the `audiocore.Mixer`'s encoding settings given in the constructor.
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//|
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STATIC mp_obj_t audioio_mixervoice_obj_play(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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enum { ARG_sample, ARG_loop };
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_sample, MP_ARG_OBJ | MP_ARG_REQUIRED },
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{ MP_QSTR_loop, MP_ARG_BOOL | MP_ARG_KW_ONLY, {.u_bool = false} },
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};
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audioio_mixervoice_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]);
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mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
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mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
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mp_obj_t sample = args[ARG_sample].u_obj;
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common_hal_audioio_mixervoice_play(self, sample, args[ARG_loop].u_bool);
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return mp_const_none;
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}
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MP_DEFINE_CONST_FUN_OBJ_KW(audioio_mixervoice_play_obj, 1, audioio_mixervoice_obj_play);
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//| .. method:: stop()
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//|
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//| Stops playback of the sample on this voice.
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//|
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STATIC mp_obj_t audioio_mixervoice_obj_stop(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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enum { ARG_voice };
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_voice, MP_ARG_INT, {.u_int = 0} },
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};
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audioio_mixervoice_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]);
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mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
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mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
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common_hal_audioio_mixervoice_stop(self);
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return mp_const_none;
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}
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MP_DEFINE_CONST_FUN_OBJ_KW(audioio_mixervoice_stop_obj, 1, audioio_mixervoice_obj_stop);
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//| .. attribute:: level()
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//|
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//| The volume level of a voice, as a floating point number between 0 and 1.
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//|
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STATIC mp_obj_t audioio_mixervoice_obj_get_level(mp_obj_t self_in) {
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return mp_obj_new_float(common_hal_audioio_mixervoice_get_level(self_in));
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}
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MP_DEFINE_CONST_FUN_OBJ_1(audioio_mixervoice_get_level_obj, audioio_mixervoice_obj_get_level);
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STATIC mp_obj_t audioio_mixervoice_obj_set_level(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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enum { ARG_level };
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_level, MP_ARG_OBJ | MP_ARG_REQUIRED },
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};
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audioio_mixervoice_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]);
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mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
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mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
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float level = mp_obj_get_float(args[ARG_level].u_obj);
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if (level > 1 || level < 0) {
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mp_raise_ValueError(translate("level must be between 0 and 1"));
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}
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common_hal_audioio_mixervoice_set_level(self, level);
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return mp_const_none;
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}
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MP_DEFINE_CONST_FUN_OBJ_KW(audioio_mixervoice_set_level_obj, 1, audioio_mixervoice_obj_set_level);
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const mp_obj_property_t audioio_mixervoice_level_obj = {
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.base.type = &mp_type_property,
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.proxy = {(mp_obj_t)&audioio_mixervoice_get_level_obj,
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(mp_obj_t)&audioio_mixervoice_set_level_obj,
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(mp_obj_t)&mp_const_none_obj},
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};
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//| .. attribute:: playing
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//|
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//| True when any voice is being output. (read-only)
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//|
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STATIC mp_obj_t audioio_mixervoice_obj_get_playing(mp_obj_t self_in) {
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audioio_mixervoice_obj_t *self = MP_OBJ_TO_PTR(self_in);
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return mp_obj_new_bool(common_hal_audioio_mixervoice_get_playing(self));
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}
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MP_DEFINE_CONST_FUN_OBJ_1(audioio_mixervoice_get_playing_obj, audioio_mixervoice_obj_get_playing);
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const mp_obj_property_t audioio_mixervoice_playing_obj = {
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.base.type = &mp_type_property,
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.proxy = {(mp_obj_t)&audioio_mixervoice_get_playing_obj,
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(mp_obj_t)&mp_const_none_obj,
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(mp_obj_t)&mp_const_none_obj},
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};
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STATIC const mp_rom_map_elem_t audioio_mixervoice_locals_dict_table[] = {
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// Methods
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{ MP_ROM_QSTR(MP_QSTR_play), MP_ROM_PTR(&audioio_mixervoice_play_obj) },
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{ MP_ROM_QSTR(MP_QSTR_stop), MP_ROM_PTR(&audioio_mixervoice_stop_obj) },
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// Properties
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{ MP_ROM_QSTR(MP_QSTR_playing), MP_ROM_PTR(&audioio_mixervoice_playing_obj) },
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{ MP_ROM_QSTR(MP_QSTR_level), MP_ROM_PTR(&audioio_mixervoice_level_obj) },
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};
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STATIC MP_DEFINE_CONST_DICT(audioio_mixervoice_locals_dict, audioio_mixervoice_locals_dict_table);
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const mp_obj_type_t audioio_mixervoice_type = {
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{ &mp_type_type },
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.name = MP_QSTR_MixerVoice,
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.make_new = audioio_mixervoice_make_new,
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.locals_dict = (mp_obj_dict_t*)&audioio_mixervoice_locals_dict,
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};
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