DM: adding mixer voice API

This commit is contained in:
dean 2018-11-15 14:11:45 -05:00
parent 59c6ed34fd
commit dd05aafb9b
8 changed files with 279 additions and 239 deletions

View File

@ -106,7 +106,7 @@ STATIC mp_obj_t audioio_mixer_make_new(const mp_obj_type_t *type, size_t n_args,
if (bits_per_sample != 8 && bits_per_sample != 16) {
mp_raise_ValueError(translate("bits_per_sample must be 8 or 16"));
}
audioio_mixer_obj_t *self = m_new_obj_var(audioio_mixer_obj_t, audioio_mixer_voice_obj_t, voice_count);
audioio_mixer_obj_t *self = m_new_obj_var(audioio_mixer_obj_t, mp_obj_t, voice_count);
self->base.type = &audioio_mixer_type;
common_hal_audioio_mixer_construct(self, voice_count, args[ARG_buffer_size].u_int, bits_per_sample, args[ARG_samples_signed].u_bool, channel_count, sample_rate);
@ -226,208 +226,25 @@ const mp_obj_property_t audioio_mixer_sample_rate_obj = {
(mp_obj_t)&mp_const_none_obj},
};
//| .. currentmodule:: audioio
//| .. attribute:: voice
//|
//| :class:`Mixer` -- Mixes one or more audio samples together
//| ===========================================================
//| tuple of voice objects
//|
//| Mixer mixes multiple samples into one sample.
//|
//| .. class:: Mixer(channel_count=2, buffer_size=1024)
//|
//| Create a Mixer object that can mix multiple channels with the same sample rate.
//|
//| :param int channel_count: The maximum number of samples to mix at once
//| :param int buffer_size: The total size in bytes of the buffers to mix into
//|
STATIC mp_obj_t audioio_mixer_voice_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *pos_args) {
#if 0
mp_arg_check_num(n_args, n_kw, 0, 2, true);
mp_map_t kw_args;
mp_map_init_fixed_table(&kw_args, n_kw, pos_args + n_args);
enum { ARG_voice_count, ARG_buffer_size, ARG_channel_count, ARG_bits_per_sample, ARG_samples_signed, ARG_sample_rate };
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_voice_count, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 2} },
{ MP_QSTR_buffer_size, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 1024} },
{ MP_QSTR_channel_count, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 2} },
{ MP_QSTR_bits_per_sample, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 16} },
{ MP_QSTR_samples_signed, MP_ARG_BOOL | MP_ARG_KW_ONLY, {.u_bool = true} },
{ MP_QSTR_sample_rate, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 8000} },
};
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all(n_args, pos_args, &kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
mp_int_t voice_count = args[ARG_voice_count].u_int;
if (voice_count < 1 || voice_count > 255) {
mp_raise_ValueError(translate("Invalid voice count"));
}
mp_int_t channel_count = args[ARG_channel_count].u_int;
if (channel_count < 1 || channel_count > 2) {
mp_raise_ValueError(translate("Invalid channel count"));
}
mp_int_t sample_rate = args[ARG_sample_rate].u_int;
if (sample_rate < 1) {
mp_raise_ValueError(translate("Sample rate must be positive"));
}
mp_int_t bits_per_sample = args[ARG_bits_per_sample].u_int;
if (bits_per_sample != 8 && bits_per_sample != 16) {
mp_raise_ValueError(translate("bits_per_sample must be 8 or 16"));
}
audioio_mixer_obj_t *self = m_new_obj_var(audioio_mixer_obj_t, audioio_mixer_voice_obj_t, voice_count);
self->base.type = &audioio_mixer_type;
common_hal_audioio_mixer_construct(self, voice_count, args[ARG_buffer_size].u_int, bits_per_sample, args[ARG_samples_signed].u_bool, channel_count, sample_rate);
return MP_OBJ_FROM_PTR(self);
#endif
return mp_const_none;
}
//| .. method:: deinit()
//|
//| Deinitialises the Voice and releases any hardware resources for reuse.
//|
STATIC mp_obj_t audioio_mixer_voice_deinit(mp_obj_t self_in) {
#if 0
audioio_mixer_voice_obj_t *self = MP_OBJ_TO_PTR(self_in);
common_hal_audioio_mixer_voice_deinit(self);
#endif
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(audioio_mixer_voice_deinit_obj, audioio_mixer_voice_deinit);
//| .. method:: __enter__()
//|
//| No-op used by Context Managers.
//|
// Provided by context manager helper.
//| .. method:: __exit__()
//|
//| Automatically deinitializes the hardware when exiting a context. See
//| :ref:`lifetime-and-contextmanagers` for more info.
//|
STATIC mp_obj_t audioio_mixer_voice_obj___exit__(size_t n_args, const mp_obj_t *args) {
#if 0
(void)n_args;
common_hal_audioio_mixer_voice_deinit(args[0]);
#endif
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(audioio_mixer_voice___exit___obj, 4, 4, audioio_mixer_voice_obj___exit__);
//| .. method:: play(sample, *, loop=False)
//|
//| Plays the sample once when loop=False and continuously when loop=True.
//| Does not block. Use `playing` to block.
//|
//| Sample must be an `audioio.WaveFile`, `audioio.Mixer` or `audioio.RawSample`.
//|
//| The sample must match the Mixer's encoding settings given in the constructor.
//|
STATIC mp_obj_t audioio_mixer_voice_obj_play(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
#if 0
enum { ARG_sample, ARG_loop };
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_sample, MP_ARG_OBJ | MP_ARG_REQUIRED },
{ MP_QSTR_loop, MP_ARG_BOOL | MP_ARG_KW_ONLY, {.u_bool = false} },
};
audioio_mixer_voice_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]);
raise_error_if_deinited(common_hal_audioio_mixer_voice_deinited(self));
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
mp_obj_t sample = args[ARG_sample].u_obj;
common_hal_audioio_mixer_play(self, sample, self->u_int, args[ARG_loop].u_ool);
#endif
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_KW(audioio_mixer_voice_play_obj, 1, audioio_mixer_voice_obj_play);
//| .. method:: stop_voice()
//|
//| Stops playback of the sample on this voice.
//|
STATIC mp_obj_t audioio_mixer_voice_obj_stop(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
#if 0
enum { ARG_voice };
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_voice, MP_ARG_INT, {.u_int = 0} },
};
audioio_mixer_voice_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]);
raise_error_if_deinited(common_hal_audioio_mixer_deinited(self));
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
common_hal_audioio_mixer_stop_voice(self, args[ARG_voice].u_int);
#endif
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_KW(audioio_mixer_voice_stop_obj, 1, audioio_mixer_voice_obj_stop);
//| .. method:: set_gain(voice, gain)
//|
//| Set the gain of a voice.
//|
//| gain must be a floating point number between 0 and 1
//|
STATIC mp_obj_t audioio_mixer_voice_obj_set_gain(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
#if 0
enum { ARG_voice, ARG_gain };
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_voice, MP_ARG_INT | MP_ARG_REQUIRED },
{ MP_QSTR_gain, MP_ARG_OBJ | MP_ARG_REQUIRED },
};
audioio_mixer_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]);
raise_error_if_deinited(common_hal_audioio_mixer_deinited(self));
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
#if MICROPY_PY_BUILTINS_FLOAT
float gain = mp_obj_get_float(args[ARG_gain].u_obj);
#else
#error "floating point not supported"
#endif
if (gain > 1 || gain < 0) {
mp_raise_ValueError(translate("gain must be between 0 and 1"));
}
common_hal_audioio_mixer_set_gain(self,args[ARG_voice].u_int, gain);
#endif
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_KW(audioio_mixer_voice_set_gain_obj, 1, audioio_mixer_voice_obj_set_gain);
const mp_obj_property_t audioio_mixer_voice_gain_obj = {
.base.type = &mp_type_property,
.proxy = {(mp_obj_t)&mp_const_none_obj,
(mp_obj_t)&audioio_mixer_voice_set_gain_obj,
(mp_obj_t)&mp_const_none_obj},
};
//| .. attribute:: playing
//|
//| True when any voice is being output. (read-only)
//|
STATIC mp_obj_t audioio_mixer_voice_obj_get_playing(mp_obj_t self_in) {
#if 0
STATIC mp_obj_t audioio_mixer_obj_get_voice(mp_obj_t self_in) {
audioio_mixer_obj_t *self = MP_OBJ_TO_PTR(self_in);
raise_error_if_deinited(common_hal_audioio_mixer_deinited(self));
return mp_obj_new_bool(common_hal_audioio_mixer_get_playing(self));
#endif
return mp_const_none;
return mp_obj_new_tuple(self->voice_count, self->voice);
}
MP_DEFINE_CONST_FUN_OBJ_1(audioio_mixer_voice_get_playing_obj, audioio_mixer_voice_obj_get_playing);
MP_DEFINE_CONST_FUN_OBJ_1(audioio_mixer_get_voice_obj, audioio_mixer_obj_get_voice);
const mp_obj_property_t audioio_mixer_voice_playing_obj = {
const mp_obj_property_t audioio_mixer_voice_obj = {
.base.type = &mp_type_property,
.proxy = {(mp_obj_t)&audioio_mixer_voice_get_playing_obj,
.proxy = {(mp_obj_t)&audioio_mixer_obj_get_voice,
(mp_obj_t)&mp_const_none_obj,
(mp_obj_t)&mp_const_none_obj},
};
STATIC const mp_rom_map_elem_t audioio_mixer_locals_dict_table[] = {
// Methods
{ MP_ROM_QSTR(MP_QSTR_deinit), MP_ROM_PTR(&audioio_mixer_deinit_obj) },
@ -439,6 +256,7 @@ STATIC const mp_rom_map_elem_t audioio_mixer_locals_dict_table[] = {
// Properties
{ MP_ROM_QSTR(MP_QSTR_playing), MP_ROM_PTR(&audioio_mixer_playing_obj) },
{ MP_ROM_QSTR(MP_QSTR_sample_rate), MP_ROM_PTR(&audioio_mixer_sample_rate_obj) },
{ MP_ROM_QSTR(MP_QSTR_voice), MP_ROM_PTR(&audioio_mixer_voice_obj) }
};
STATIC MP_DEFINE_CONST_DICT(audioio_mixer_locals_dict, audioio_mixer_locals_dict_table);
@ -448,24 +266,3 @@ const mp_obj_type_t audioio_mixer_type = {
.make_new = audioio_mixer_make_new,
.locals_dict = (mp_obj_dict_t*)&audioio_mixer_locals_dict,
};
STATIC const mp_rom_map_elem_t audioio_mixer_voice_locals_dict_table[] = {
// Methods
{ MP_ROM_QSTR(MP_QSTR_deinit), MP_ROM_PTR(&audioio_mixer_voice_deinit_obj) },
{ MP_ROM_QSTR(MP_QSTR___enter__), MP_ROM_PTR(&default___enter___obj) },
{ MP_ROM_QSTR(MP_QSTR___exit__), MP_ROM_PTR(&audioio_mixer_voice___exit___obj) },
{ MP_ROM_QSTR(MP_QSTR_play), MP_ROM_PTR(&audioio_mixer_voice_play_obj) },
{ MP_ROM_QSTR(MP_QSTR_stop), MP_ROM_PTR(&audioio_mixer_voice_stop_obj) },
// Properties
{ MP_ROM_QSTR(MP_QSTR_playing), MP_ROM_PTR(&audioio_mixer_voice_playing_obj) },
{ MP_ROM_QSTR(MP_QSTR_gain), MP_ROM_PTR(&audioio_mixer_voice_gain_obj) },
};
STATIC MP_DEFINE_CONST_DICT(audioio_mixer_voice_locals_dict, audioio_mixer_voice_locals_dict_table);
const mp_obj_type_t audioio_mixer_voice_type = {
{ &mp_type_type },
.name = MP_QSTR_Mixer_Voice,
.make_new = audioio_mixer_voice_make_new,
.locals_dict = (mp_obj_dict_t*)&audioio_mixer_voice_locals_dict,
};

View File

@ -32,7 +32,7 @@
#include "shared-bindings/audioio/RawSample.h"
extern const mp_obj_type_t audioio_mixer_type;
extern const mp_obj_type_t audioio_mixer_voice_type;
extern const mp_obj_type_t audioio_mixervoice_type;
void common_hal_audioio_mixer_construct(audioio_mixer_obj_t* self,
uint8_t voice_count,
@ -52,12 +52,4 @@ void common_hal_audioio_mixer_set_gain(audioio_mixer_obj_t* self, uint8_t voice,
bool common_hal_audioio_mixer_get_playing(audioio_mixer_obj_t* self);
uint32_t common_hal_audioio_mixer_get_sample_rate(audioio_mixer_obj_t* self);
void common_hal_audioio_mixer_voice_deinit(audioio_mixer_voice_obj_t* self);
bool common_hal_audioio_mixer_voice_deinited(audioio_mixer_voice_obj_t* self);
void common_hal_audioio_mixer_voice_play(audioio_mixer_voice_obj_t* self, mp_obj_t sample, bool loop);
void common_hal_audioio_mixer_voice_stop_voice(audioio_mixer_voice_obj_t* self);
void common_hal_audioio_mixer_voice_set_gain(audioio_mixer_voice_obj_t* self, float gain);
bool common_hal_audioio_mixer_get_playing(audioio_mixer_obj_t* self);
#endif // MICROPY_INCLUDED_SHARED_BINDINGS_AUDIOIO_MIXER_H

View File

@ -0,0 +1,196 @@
/*
* MixerVoice.c
*
* Created on: Nov 15, 2018
* Author: dean
*/
#include "shared-bindings/audioio/Mixer.h"
#include <stdint.h>
#include "lib/utils/context_manager_helpers.h"
#include "py/binary.h"
#include "py/objproperty.h"
#include "py/runtime.h"
#include "shared-bindings/microcontroller/Pin.h"
#include "shared-bindings/audioio/RawSample.h"
#include "shared-bindings/util.h"
#include "supervisor/shared/translate.h"
//| .. currentmodule:: audioio
//|
//| :class:`Mixer` -- Mixes one or more audio samples together
//| ===========================================================
//|
//| Mixer mixes multiple samples into one sample.
//|
//| .. class:: Mixer(channel_count=2, buffer_size=1024)
//|
//| Create a Mixer object that can mix multiple channels with the same sample rate.
//|
//| :param int channel_count: The maximum number of samples to mix at once
//| :param int buffer_size: The total size in bytes of the buffers to mix into
//|
// TODO: support mono or stereo voices
STATIC mp_obj_t audioio_mixervoice_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *pos_args) {
audioio_mixervoice_obj_t *self = m_new(audioio_mixervoice_obj_t, 1);
self->base.type = &audioio_mixervoice_type;
return MP_OBJ_FROM_PTR(self);
}
//| .. method:: deinit()
//|
//| Deinitialises the Voice and releases any hardware resources for reuse.
//|
STATIC mp_obj_t audioio_mixervoice_deinit(mp_obj_t self_in) {
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(audioio_mixervoice_deinit_obj, audioio_mixervoice_deinit);
//| .. method:: __enter__()
//|
//| No-op used by Context Managers.
//|
// Provided by context manager helper.
//| .. method:: __exit__()
//|
//| Automatically deinitializes the hardware when exiting a context. See
//| :ref:`lifetime-and-contextmanagers` for more info.
//|
STATIC mp_obj_t audioio_mixervoice_obj___exit__(size_t n_args, const mp_obj_t *args) {
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(audioio_mixervoice___exit___obj, 4, 4, audioio_mixervoice_obj___exit__);
//| .. method:: play(sample, *, loop=False)
//|
//| Plays the sample once when loop=False and continuously when loop=True.
//| Does not block. Use `playing` to block.
//|
//| Sample must be an `audioio.WaveFile`, `audioio.Mixer` or `audioio.RawSample`.
//|
//| The sample must match the Mixer's encoding settings given in the constructor.
//|
STATIC mp_obj_t audioio_mixervoice_obj_play(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
#if 0
enum { ARG_sample, ARG_loop };
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_sample, MP_ARG_OBJ | MP_ARG_REQUIRED },
{ MP_QSTR_loop, MP_ARG_BOOL | MP_ARG_KW_ONLY, {.u_bool = false} },
};
audioio_mixervoice_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]);
raise_error_if_deinited(common_hal_audioio_mixervoice_deinited(self));
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
mp_obj_t sample = args[ARG_sample].u_obj;
common_hal_audioio_mixer_play(self, sample, self->u_int, args[ARG_loop].u_ool);
#endif
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_KW(audioio_mixervoice_play_obj, 1, audioio_mixervoice_obj_play);
//| .. method:: stop_voice()
//|
//| Stops playback of the sample on this voice.
//|
STATIC mp_obj_t audioio_mixervoice_obj_stop(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
#if 0
enum { ARG_voice };
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_voice, MP_ARG_INT, {.u_int = 0} },
};
audioio_mixervoice_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]);
raise_error_if_deinited(common_hal_audioio_mixer_deinited(self));
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
common_hal_audioio_mixer_stop_voice(self, args[ARG_voice].u_int);
#endif
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_KW(audioio_mixervoice_stop_obj, 1, audioio_mixervoice_obj_stop);
//| .. method:: set_gain(voice, gain)
//|
//| Set the gain of a voice.
//|
//| gain must be a floating point number between 0 and 1
//|
STATIC mp_obj_t audioio_mixervoice_obj_set_gain(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
enum { ARG_gain };
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_gain, MP_ARG_OBJ | MP_ARG_REQUIRED },
};
audioio_mixer_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]);
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
#if MICROPY_PY_BUILTINS_FLOAT
float gain = mp_obj_get_float(args[ARG_gain].u_obj);
#else
#error "floating point not supported"
#endif
if (gain > 1 || gain < 0) {
mp_raise_ValueError(translate("gain must be between 0 and 1"));
}
common_hal_audioio_mixervoice_set_gain(self, gain);
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_KW(audioio_mixervoice_set_gain_obj, 1, audioio_mixervoice_obj_set_gain);
const mp_obj_property_t audioio_mixervoice_gain_obj = {
.base.type = &mp_type_property,
.proxy = {(mp_obj_t)&mp_const_none_obj,
(mp_obj_t)&audioio_mixervoice_set_gain_obj,
(mp_obj_t)&mp_const_none_obj},
};
//| .. attribute:: playing
//|
//| True when any voice is being output. (read-only)
//|
STATIC mp_obj_t audioio_mixervoice_obj_get_playing(mp_obj_t self_in) {
#if 0
audioio_mixer_obj_t *self = MP_OBJ_TO_PTR(self_in);
raise_error_if_deinited(common_hal_audioio_mixer_deinited(self));
return mp_obj_new_bool(common_hal_audioio_mixer_get_playing(self));
#endif
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_1(audioio_mixervoice_get_playing_obj, audioio_mixervoice_obj_get_playing);
const mp_obj_property_t audioio_mixervoice_playing_obj = {
.base.type = &mp_type_property,
.proxy = {(mp_obj_t)&audioio_mixervoice_get_playing_obj,
(mp_obj_t)&mp_const_none_obj,
(mp_obj_t)&mp_const_none_obj},
};
STATIC const mp_rom_map_elem_t audioio_mixervoice_locals_dict_table[] = {
// Methods
{ MP_ROM_QSTR(MP_QSTR_deinit), MP_ROM_PTR(&audioio_mixervoice_deinit_obj) },
{ MP_ROM_QSTR(MP_QSTR___enter__), MP_ROM_PTR(&default___enter___obj) },
{ MP_ROM_QSTR(MP_QSTR___exit__), MP_ROM_PTR(&audioio_mixervoice___exit___obj) },
{ MP_ROM_QSTR(MP_QSTR_play), MP_ROM_PTR(&audioio_mixervoice_play_obj) },
{ MP_ROM_QSTR(MP_QSTR_stop), MP_ROM_PTR(&audioio_mixervoice_stop_obj) },
// Properties
{ MP_ROM_QSTR(MP_QSTR_playing), MP_ROM_PTR(&audioio_mixervoice_playing_obj) },
{ MP_ROM_QSTR(MP_QSTR_gain), MP_ROM_PTR(&audioio_mixervoice_gain_obj) },
};
STATIC MP_DEFINE_CONST_DICT(audioio_mixervoice_locals_dict, audioio_mixervoice_locals_dict_table);
const mp_obj_type_t audioio_mixervoice_type = {
{ &mp_type_type },
.name = MP_QSTR_mixervoice,
.make_new = audioio_mixervoice_make_new,
.locals_dict = (mp_obj_dict_t*)&audioio_mixervoice_locals_dict,
};

View File

@ -0,0 +1,38 @@
/*
* MixerVoice.h
*
* Created on: Nov 15, 2018
* Author: dean
*/
#ifndef SHARED_BINDINGS_AUDIOIO_MIXERVOICE_H_
#define SHARED_BINDINGS_AUDIOIO_MIXERVOICE_H_
#include "py/obj.h"
#include "shared-module/audioio/__init__.h"
#include "common-hal/microcontroller/Pin.h"
#include "shared-module/audioio/Mixer.h"
#include "shared-bindings/audioio/RawSample.h"
typedef struct {
mp_obj_t sample;
bool loop;
bool more_data;
uint32_t* remaining_buffer;
uint32_t buffer_length;
int16_t gain;
} audioio_mixervoice_obj_t;
extern const mp_obj_type_t audioio_mixer_type;
extern const mp_obj_type_t audioio_mixervoice_type;
void common_hal_audioio_mixervoice_deinit(audioio_mixervoice_obj_t* self);
void common_hal_audioio_mixervoice_play(audioio_mixervoice_obj_t* self, mp_obj_t sample, bool loop);
void common_hal_audioio_mixervoice_stop(audioio_mixervoice_obj_t* self);
void common_hal_audioio_mixervoice_set_gain(audioio_mixervoice_obj_t* self, float gain);
bool common_hal_audioio_mixervoice_get_playing(audioio_mixervoice_obj_t* self);
#endif /* SHARED_BINDINGS_AUDIOIO_MIXERVOICE_H_ */

View File

@ -100,7 +100,7 @@ void common_hal_audioio_mixer_play(audioio_mixer_obj_t* self, mp_obj_t sample, u
if (samples_signed != self->samples_signed) {
mp_raise_ValueError(translate("The sample's signedness does not match the mixer's"));
}
audioio_mixer_voice_obj_t* voice = &self->voice[v];
audioio_mixervoice_obj_t* voice = &self->voice[v];
voice->sample = sample;
voice->loop = loop;
@ -132,11 +132,6 @@ void audioio_mixer_reset_buffer(audioio_mixer_obj_t* self,
}
}
void common_hal_audioio_mixer_set_gain(audioio_mixer_obj_t* self, uint8_t voice, float gain) {
audioio_mixer_voice_obj_t* v = &self->voice[voice];
v->gain = gain * ((1 << 15)-1);
}
uint32_t add8signed(uint32_t a, uint32_t b) {
#if (defined (__ARM_FEATURE_DSP) && (__ARM_FEATURE_DSP == 1))
return __QADD8(a, b);
@ -311,7 +306,7 @@ audioio_get_buffer_result_t audioio_mixer_get_buffer(audioio_mixer_obj_t* self,
self->use_first_buffer = !self->use_first_buffer;
bool voices_active = false;
for (int32_t v = 0; v < self->voice_count; v++) {
audioio_mixer_voice_obj_t* voice = &self->voice[v];
audioio_mixervoice_obj_t* voice = &self->voice[v];
uint32_t j = 0;
bool voice_done = voice->sample == NULL;

View File

@ -30,15 +30,7 @@
#include "py/obj.h"
#include "shared-module/audioio/__init__.h"
typedef struct {
mp_obj_t sample;
bool loop;
bool more_data;
uint32_t* remaining_buffer;
uint32_t buffer_length;
int16_t gain;
} audioio_mixer_voice_obj_t;
#include "shared-bindings/audioio/MixerVoice.h"
typedef struct {
mp_obj_base_t base;
@ -56,7 +48,7 @@ typedef struct {
uint32_t right_read_count;
uint8_t voice_count;
audioio_mixer_voice_obj_t voice[];
mp_obj_t voice[];
} audioio_mixer_obj_t;

View File

@ -0,0 +1,18 @@
/*
* MixerVoice.c
*
* Created on: Nov 15, 2018
* Author: dean
*/
#include "shared-bindings/audioio/Mixer.h"
#include <stdint.h>
#include "py/runtime.h"
#include "shared-module/audioio/__init__.h"
#include "shared-module/audioio/RawSample.h"
void common_hal_audioio_mixervoice_set_gain(audioio_mixer_obj_t* self, float gain) {
self->gain = gain * ((1 << 15)-1);
}

View File

@ -0,0 +1,12 @@
/*
* MixerVoice.h
*
* Created on: Nov 15, 2018
* Author: dean
*/
#ifndef SHARED_MODULE_AUDIOIO_MIXERVOICE_H_
#define SHARED_MODULE_AUDIOIO_MIXERVOICE_H_
#endif /* SHARED_MODULE_AUDIOIO_MIXERVOICE_H_ */