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ports/stm32/modules: Refactor arg parsing.
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@ -115,13 +115,25 @@ static uint32_t get_decimation_factor(uint32_t decimation) {
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}
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#endif
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static mp_obj_t py_audio_init(uint n_args, const mp_obj_t *args, mp_map_t *kw_args) {
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static mp_obj_t py_audio_init(uint n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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enum { ARG_channels, ARG_frequency, ARG_gain_db, ARG_highpass };
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_channels, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = AUDIO_MAX_CHANNELS } },
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{ MP_QSTR_frequency, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 16000 } },
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{ MP_QSTR_gain_db, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 24 } },
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{ MP_QSTR_highpass, MP_ARG_OBJ | MP_ARG_KW_ONLY, {.u_rom_obj = MP_ROM_NONE} },
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};
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// Parse args.
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mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
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mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
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// Read Args.
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g_channels = py_helper_keyword_int(n_args, args, 0, kw_args, MP_OBJ_NEW_QSTR(MP_QSTR_channels), AUDIO_MAX_CHANNELS);
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uint32_t frequency = py_helper_keyword_int(n_args, args, 1, kw_args, MP_OBJ_NEW_QSTR(MP_QSTR_frequency), 16000);
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g_channels = args[ARG_channels].u_int;
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uint32_t frequency = args[ARG_frequency].u_int;
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#if defined(AUDIO_SAI)
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int gain_db = py_helper_keyword_int(n_args, args, 2, kw_args, MP_OBJ_NEW_QSTR(MP_QSTR_gain_db), 24);
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float highpass = py_helper_keyword_float(n_args, args, 3, kw_args, MP_OBJ_NEW_QSTR(MP_QSTR_highpass), 0.9883f);
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int gain_db = args[ARG_gain_db].u_int;
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float highpass = py_helper_arg_to_float(args[ARG_highpass].u_obj, 0.9883f);
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#endif
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// Sanity checks
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@ -136,14 +136,28 @@ STATIC void py_tf_output_callback(void *callback_data, void *model_output, libtf
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}
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}
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STATIC mp_obj_t py_micro_speech_listen(uint n_args, const mp_obj_t *args, mp_map_t *kw_args) {
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py_micro_speech_obj_t *microspeech = args[0];
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py_tf_model_obj_t *arg_model = args[1];
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float threshold = py_helper_keyword_float(n_args, args, 2, kw_args, MP_OBJ_NEW_QSTR(MP_QSTR_threshold), 0.9f);
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uint32_t timeout = py_helper_keyword_int(n_args, args, 3, kw_args, MP_OBJ_NEW_QSTR(MP_QSTR_timeout), 1000);
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STATIC mp_obj_t py_micro_speech_listen(uint n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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enum { ARG_threshold, ARG_timeout, ARG_filter };
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_threshold, MP_ARG_OBJ | MP_ARG_KW_ONLY, {.u_rom_obj = MP_ROM_NONE} },
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{ MP_QSTR_timeout, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 1000 } },
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{ MP_QSTR_filter, MP_ARG_OBJ | MP_ARG_KW_ONLY, {.u_rom_obj = MP_ROM_NONE} },
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};
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// Parse args.
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mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
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mp_arg_parse_all(n_args - 2, pos_args + 2, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
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py_micro_speech_obj_t *microspeech = pos_args[0];
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py_tf_model_obj_t *model = pos_args[1];
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float threshold = py_helper_arg_to_float(args[ARG_threshold].u_obj, 0.9f);
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uint32_t timeout = args[ARG_timeout].u_int;
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size_t labels_filter_len = 0;
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mp_obj_t *labels_filter = py_helper_keyword_iterable(n_args, args,
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4, kw_args, MP_OBJ_NEW_QSTR(MP_QSTR_filter), &labels_filter_len);
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mp_obj_t *labels_filter = NULL;
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if (args[ARG_filter].u_obj != mp_const_none) {
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mp_obj_get_array(args[ARG_filter].u_obj, &labels_filter_len, &labels_filter);
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}
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fb_alloc_mark();
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py_tf_alloc_putchar_buffer();
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@ -152,7 +166,7 @@ STATIC mp_obj_t py_micro_speech_listen(uint n_args, const mp_obj_t *args, mp_map
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uint8_t *tensor_arena = fb_alloc_all(&tensor_arena_size, FB_ALLOC_PREFER_SIZE);
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libtf_parameters_t params;
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if (libtf_get_parameters(arg_model->model_data, tensor_arena, tensor_arena_size, ¶ms) != 0) {
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if (libtf_get_parameters(model->model_data, tensor_arena, tensor_arena_size, ¶ms) != 0) {
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mp_raise_msg(&mp_type_OSError, (mp_rom_error_text_t) py_tf_putchar_buffer);
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}
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@ -183,7 +197,7 @@ STATIC mp_obj_t py_micro_speech_listen(uint n_args, const mp_obj_t *args, mp_map
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__enable_irq();
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// Run model on updated spectrogram
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if (libtf_invoke(arg_model->model_data,
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if (libtf_invoke(model->model_data,
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tensor_arena,
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¶ms,
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py_tf_input_callback,
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@ -218,16 +232,14 @@ STATIC mp_obj_t py_micro_speech_listen(uint n_args, const mp_obj_t *args, mp_map
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// If the highest average score is higher than the threshold return a command.
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if (average_scores[highest_index] / (kAverageWindowSamples * 255.0f) > threshold) {
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bool command_filtered = (labels_filter != NULL);
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bool command_filtered = (labels_filter_len != 0);
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// If a list of labels is provided to filter commands, check if the
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// detected command is in that list, otherwise continue the detection.
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if (labels_filter != NULL) {
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for (int i = 0; i < labels_filter_len; i++) {
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if (highest_index == mp_obj_get_int(labels_filter[i])) {
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command_filtered = false;
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break;
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}
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for (int i = 0; i < labels_filter_len; i++) {
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if (highest_index == mp_obj_get_int(labels_filter[i])) {
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command_filtered = false;
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break;
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}
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}
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